Information processing method and apparatus thereof

Abstract

Embodiments of the present disclosure disclose an information processing method and an apparatus thereof. The method comprises: a first terminal receiving sidelink control information (SL SCI) sent by a second terminal, the SL SCI being used for triggering reporting of sidelink channel status information (SL CSI), a unicast connection being established on a sidelink between the first terminal and the second terminal, and the unicast connection being associated with one or more aggregated carriers; on the basis of the SL SCI, the first terminal sending to the second terminal a sidelink channel status information report media access control control element (SL CSI MAC CE). By means of implementing embodiments of the present disclosure, the problem of how to trigger reporting of an SL CSI report in a new radio sidelink (NR sidelink) carrier aggregation scenario can be solved.

Description

Information processing method and device thereof Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to an information processing method and device thereof. Background Art

[0002] In related technologies, in order to support direct communication between terminals, a direct communication (also called sidelink, SL) communication mode is introduced, and the interface between the terminals is PC-5.

[0003] In wireless communications, channel state information (CSI) refers to the known channel characteristics of a communication link. CSI describes how a signal propagates through the channel from transmitter to receiver. CSI characterizes the combined effects of various factors, such as scattering, fading, and the loss of energy over distance. Channel state information can be used to adjust transmission based on current channel conditions, which is crucial for reliable high-bit-rate communication in multi-antenna systems.

[0004] However, in the New Radio Sidelink (NR Sidelink) carrier aggregation scenario, how to trigger the reporting of Sidelink Channel State Information (SL CSI) reporting is an issue that needs to be urgently addressed.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide an information processing method and an apparatus thereof.

[0007] According to a first aspect of an embodiment of the present disclosure, an information processing method is proposed, the method comprising:

[0008] A first terminal receives sidelink control information SL SCI sent by a second terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers;

[0009] The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI.

[0010] According to a second aspect of an embodiment of the present disclosure, an information processing method is proposed, the method comprising:

[0011] The second terminal sends sidelink control information SL SCI to the first terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers;

[0012] The second terminal receives a sidelink channel state information report media access control control element SL CSI MAC CE sent by the first terminal.

[0013] According to a third aspect of an embodiment of the present disclosure, a first terminal is provided, including:

[0014] a transceiver module, configured to receive sidelink control information SL SCI sent by a second terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers;

[0015] The transceiver module is further configured to send a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI.

[0016] According to a fourth aspect of an embodiment of the present disclosure, a second terminal is provided, including:

[0017] a transceiver module, configured to send sidelink control information SL SCI to a first terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers;

[0018] The transceiver module is further configured to receive a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal.

[0019] According to a fifth aspect of an embodiment of the present disclosure, a communication system is provided, including:

[0020] A first terminal is configured to execute an optional implementation of the first aspect;

[0021] The second terminal is configured to execute an optional implementation of the aforementioned second aspect.

[0022] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, including: one or more processors;

[0023] The processor is used to call instructions to enable the communication device to execute the optional implementation of the first and second aspects mentioned above.

[0024] According to a seventh aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes optional implementation methods of the aforementioned first and second aspects.

[0025] According to the technical solution disclosed in the present invention, the carrier aggregation technology is adopted on the new air interface sidelink, which can effectively improve the transmission rate of the sidelink; in addition, the second terminal is used to send SL SCI to the first terminal based on the aggregated carrier associated with the unicast connection to trigger the SL CSI report; the first terminal sends SL CSI MAC CE to the second terminal according to the SL SCI, so that the second terminal adjusts the transmission of the unicast connection according to the SL SCI included in the SL CSI MAC CE, thereby providing a guarantee for high-reliability and high-speed communication, and can solve the problem of how to trigger the reporting of SL CSI report in the new air interface sidelink NR Sidelink carrier aggregation scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0027] FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0028] FIG2A is an interactive schematic diagram illustrating an information processing method according to an embodiment of the present disclosure;

[0029] FIG2B is an interactive schematic diagram illustrating an information processing method according to an embodiment of the present disclosure;

[0030] FIG2C is an interactive schematic diagram illustrating an information processing method according to an embodiment of the present disclosure;

[0031] FIG2D is an interactive schematic diagram illustrating an information processing method according to an embodiment of the present disclosure;

[0032] FIG2E is an interactive schematic diagram illustrating an information processing method according to an embodiment of the present disclosure;

[0033] FIG2F is an interactive schematic diagram illustrating an information processing method according to an embodiment of the present disclosure;

[0034] FIG3A is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0035] FIG3B is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0036] FIG3C is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0037] FIG3D is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0038] FIG3E is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0039] FIG3F is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0040] FIG3G is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0041] FIG4A is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0042] FIG4B is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0043] FIG4C is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0044] FIG4D is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0045] FIG4E is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0046] FIG4F is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0047] FIG4G is a flowchart of an information processing method according to an embodiment of the present disclosure;

[0048] FIG5A is a schematic structural diagram of a first terminal proposed in an embodiment of the present disclosure;

[0049] FIG5B is a schematic structural diagram of a second terminal proposed in an embodiment of the present disclosure;

[0050] FIG6A is a schematic structural diagram of a communication device 8100 proposed in an embodiment of the present disclosure;

[0051] FIG6B is a schematic structural diagram of the chip 8200 proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] The embodiments of the present disclosure provide an information processing method and apparatus thereof, which can solve the problems of low transmission rate and low reliability of a side link.

[0053] In a first aspect, an embodiment of the present disclosure provides an information processing method, the method comprising:

[0054] A first terminal receives sidelink control information SL SCI sent by a second terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers;

[0055] The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI.

[0056] In the above embodiment, the carrier aggregation technology is adopted on the new radio interface sidelink, which can effectively improve the transmission rate of the sidelink; in addition, the second terminal sends SL SCI to the first terminal based on the aggregated carrier associated with the unicast connection to trigger the SL CSI report; the first terminal sends SL CSI MAC CE to the second terminal according to the SL SCI, so that the second terminal adjusts the transmission of the unicast connection according to the SL SCI included in the SL CSI MAC CE, thereby providing a guarantee for high-reliability and high-speed communication, and can solve the problem of how to trigger the reporting of SL CSI report in the new radio interface sidelink NR Sidelink carrier aggregation scenario.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the first terminal receiving sidelink control information SL SCI sent by the second terminal includes:

[0058] The first terminal receives the SL SCI sent by the second terminal on the first carrier, wherein the first carrier is one or more carriers among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the first carrier is used to trigger the first terminal to send the SL CSI of the first carrier.

[0059] In the above embodiment, the SL CSI report can be triggered according to the carrier granularity, and the second terminal sends the SL SCI on the carrier that is triggered to report the SL CSI report. The SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier. In this way, the SL SCI sent by the second terminal may not carry the carrier information of the first carrier (that is, the carrier information that triggers the SL CSI report), thereby saving signaling resources and avoiding resource waste.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments, the first terminal receiving sidelink control information SL SCI sent by the second terminal includes:

[0061] The first terminal receives the SL SCI sent by the second terminal on the second carrier, and the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of the one or more aggregated carriers, and the SL SCI sent by the second terminal on the second carrier is used to trigger the first terminal to send the SL CSI of the first carrier.

[0062] In the above embodiment, the second terminal sends SL SCI to the first terminal on any carrier, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier, so that the first terminal can determine which carrier's SL CSI needs to be triggered according to the SL SCI, thereby achieving the purpose of triggering the SL CSI report according to the carrier granularity.

[0063] In combination with some embodiments of the first aspect, in some embodiments, the first terminal sends a sidelink channel state information report media access control control element SL CSI MAC CE to the second terminal according to the SL SCI, including:

[0064] The first terminal sends the SL CSI MAC CE to the second terminal on the first carrier according to the SL SCI, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

[0065] In the above embodiment, the first terminal sends the SL CSI of the first carrier to the second terminal on the first carrier that is triggered to report the SL CSI report. This allows the first terminal to determine which carrier's SL CSI report to trigger even if the SL SCI does not carry carrier information, and allows the second terminal to determine which carrier's SL CSI to report even if the SL CSI MAC CE does not carry carrier information, thereby saving signaling resources and avoiding resource waste.

[0066] In combination with some embodiments of the first aspect, in some embodiments, the first terminal sends a sidelink channel state information report media access control control element SL CSI MAC CE to the second terminal according to the SL SCI, including:

[0067] The first terminal sends the SL CSI MAC CE to the second terminal on a third carrier based on the SL SCI, and the SL CSI MAC CE includes the side link channel state information of the first carrier and / or the carrier indication information of the first carrier, wherein the third carrier is one of the one or more aggregated carriers.

[0068] In the above embodiment, the first terminal can report the SL CSI report on any carrier. The reported SL CSI report is the SL CSI of the triggered carrier, thereby achieving the purpose of triggering and reporting the SL-CSI report according to the carrier granularity.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the first terminal sending the SL CSI MAC CE to the second terminal on the first carrier according to the SL SCI includes:

[0070] Determining that the sidelink grant is a sidelink grant on the first carrier and / or the target address of the sidelink grant is the second terminal; the sidelink grant is a new transmission sidelink resource;

[0071] The SL CSI MAC CE associated with the first carrier is multiplexed into a sidelink media access control protocol data unit SL MAC PDU, and the SL MAC PDU is sent to the second terminal through the sidelink grant.

[0072] In the above embodiment, when the SLCSI report of the first carrier is triggered and the SLCSI report of the first carrier is reported, the influence of LCP (Logical Channel Prioritization) can be considered, so that the SL CSI MAC CE associated with the first carrier can only be sent on the sidelink authorization on the first carrier.

[0073] In combination with some embodiments of the first aspect, in some embodiments, the first terminal sends a sidelink channel state information report media access control control element SL CSI MAC CE to the second terminal according to the SL SCI, including:

[0074] Determining that the first carrier triggers an SL CSI report and the SL CSI report triggered by the first carrier is not canceled, and starting a sidelink channel state information SL CSI timer associated with the first carrier;

[0075] During the period when the SL CSI timer associated with the first carrier is running, a SL CSI MAC CE is sent to the second terminal, where the SL CSI MAC CE includes sidelink channel state information CSI associated with the first carrier.

[0076] In the above embodiment, while the SL CSI timer associated with the first carrier is running, the SL CSI associated with the first carrier is sent to the second terminal, which can ensure the validity of the SL CSI.

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0078] It is determined that the SL CSI timer associated with the first carrier has timed out, and the SL CSI report triggered by the first carrier is canceled.

[0079] In combination with some embodiments of the first aspect, in some embodiments, sending the SL CSI MAC CE to the second terminal includes:

[0080] Determining that the first terminal has a new transmission side link resource, and the new transmission side link resource may include the SL CSI MAC CE and a subheader of the SL CSI MAC CE;

[0081] Instructing the multiplexing and assembly entity to generate the SL CSI MAC CE;

[0082] Stop the SL CSI timer associated with the first carrier, and cancel the SL CSI report triggered by the first carrier.

[0083] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0084] The first terminal receives a delay limit requirement of an SL CSI report sent by the second terminal through PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay limit requirement.

[0085] In conjunction with some embodiments of the first aspect, in some embodiments, the first terminal receiving sidelink control information SL SCI sent by the second terminal includes:

[0086] The first terminal receives the SL SCI sent by the second terminal on a fourth carrier, where the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger the SL CSI of the first terminal.

[0087] In the above embodiment, the second terminal sends SL SCI on any carrier in the aggregated carriers. The SL SCI is used to trigger the SL CSI of the first terminal, thereby achieving the purpose of triggering SL CSI reporting according to terminal granularity.

[0088] In combination with some embodiments of the first aspect, in some embodiments, the SL CSI MAC CE includes sidelink channel state information of the one or more aggregated carriers.

[0089] In the above embodiment, the SL CSI MAC CE sent by the first terminal to the second terminal includes the sidelink channel state information of all aggregated carriers. For example, the first terminal reports the SL CSI of all aggregated carriers, thereby achieving the purpose of reporting the SL CSI report according to the terminal granularity.

[0090] In combination with some embodiments of the first aspect, in some embodiments, the SL CSI MAC CE further includes carrier indication information of the one or more aggregated carriers.

[0091] In the above embodiment, by carrying the carrier indication information of the aggregated carriers in the SL CSI MAC CE, the second terminal can determine the SL CSI of each aggregated carrier according to the carrier indication information carried in the SL CSI MAC CE.

[0092] In combination with some embodiments of the first aspect, in some embodiments, the first terminal sends a sidelink channel state information report media access control control element SL CSI MAC CE to the second terminal according to the SL SCI, including:

[0093] The first terminal selects a fifth carrier from the one or more aggregated carriers, and sends a SL CSI MAC CE to the second terminal, where the SL CSI MAC CE includes sidelink channel state information of the fifth carrier.

[0094] In the above embodiment, when reporting SL CSI, the first terminal can select a carrier from all aggregated carriers and send a SL CSI MAC CE to the second terminal. The SL CSI MAC CE includes the SL CSI of the selected carrier, that is, the SL CSI of the selected carrier represents the SL CSI of the entire terminal, thereby achieving the purpose of reporting the SL CSI report according to the terminal granularity.

[0095] In combination with some embodiments of the first aspect, in some embodiments, the SL CSI MAC CE further includes carrier indication information of the fifth carrier.

[0096] In combination with some embodiments of the first aspect, in some embodiments, the first terminal selects a fifth carrier from the one or more aggregated carriers, including:

[0097] selecting any one carrier from the one or more aggregated carriers as the fifth carrier; or,

[0098] A carrier that meets a first condition is selected from the one or more aggregated carriers as a fifth carrier.

[0099] In combination with some embodiments of the first aspect, in some embodiments, selecting a carrier that satisfies the first condition from the one or more aggregated carriers includes any one of the following:

[0100] Selecting a carrier with a lowest channel busy rate (CBR) from the one or more aggregated carriers;

[0101] A carrier with the highest CBR is selected from the one or more aggregated carriers.

[0102] In combination with some embodiments of the first aspect, in some embodiments, the first terminal sends a sidelink channel state information report media access control control element SL CSI MAC CE to the second terminal according to the SL SCI, including:

[0103] determining that the first terminal triggers an SL CSI report and the SL CSI report triggered by the first terminal is not canceled, and starting an SL CSI timer associated with the first terminal;

[0104] While the SL CSI timer associated with the first terminal is running, the SL CSI MAC CE associated with the first terminal is sent to the second terminal.

[0105] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0106] It is determined that the SL CSI timer associated with the first terminal has timed out, and the SL CSI report triggered by the first terminal is canceled.

[0107] In combination with some embodiments of the first aspect, in some embodiments, the sending the SL CSI MAC CE to the second terminal includes:

[0108] Determining that the first terminal has a new transmission side link resource, and the new transmission side link resource may include the SL CSI MAC CE and a subheader of the SL CSI MAC CE;

[0109] Instructing the multiplexing and assembly entity to generate the SL CSI MAC CE;

[0110] Stop the SL CSI timer associated with the first terminal and cancel the SL CSI report triggered by the first terminal.

[0111] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0112] The first terminal receives a delay limit requirement of an SL CSI report sent by the second terminal through PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first terminal is the delay limit requirement.

[0113] In combination with some embodiments of the first aspect, in some embodiments, the delay limit requirement of the SL CSI report is configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; address granularity.

[0114] In a second aspect, an embodiment of the present disclosure provides an information processing method, the method comprising:

[0115] The second terminal sends sidelink control information SL SCI to the first terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers;

[0116] The second terminal receives a sidelink channel state information report media access control control element SL CSI MAC CE sent by the first terminal.

[0117] In conjunction with some embodiments of the second aspect, in some embodiments, the second terminal sending sidelink control information SL SCI to the first terminal includes:

[0118] The second terminal sends SL SCI to the first terminal on a first carrier, where the first carrier is one or more carriers among the one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send SL CSI of the first carrier.

[0119] In conjunction with some embodiments of the second aspect, in some embodiments, the second terminal sending sidelink control information SL SCI to the first terminal includes:

[0120] The second terminal sends SL SCI to the first terminal on the second carrier, and the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of the one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send SL CSI of the first carrier.

[0121] In combination with some embodiments of the second aspect, in some embodiments, the second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal, including:

[0122] The second terminal receives the SL CSI MAC CE sent by the first terminal on the first carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

[0123] In combination with some embodiments of the second aspect, in some embodiments, the second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal, including:

[0124] The second terminal receives the SL CSI MAC CE sent by the first terminal on a third carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier and / or carrier indication information of the first carrier; wherein the third carrier is one of the one or more aggregated carriers.

[0125] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0126] The second terminal sends a delay limit requirement of an SL CSI report to the first terminal through PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay limit requirement.

[0127] In conjunction with some embodiments of the second aspect, in some embodiments, the second terminal sending sidelink control information SL SCI to the first terminal includes:

[0128] The second terminal sends SL SCI to the first terminal on a fourth carrier, where the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger SL CSI of the first terminal.

[0129] In combination with some embodiments of the second aspect, in some embodiments, the SL CSI MAC CE includes sidelink channel state information of the one or more aggregated carriers.

[0130] In combination with some embodiments of the second aspect, in some embodiments, the SL CSI MAC CE further includes carrier indication information of the one or more aggregated carriers.

[0131] In combination with some embodiments of the second aspect, in some embodiments, the second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal, including:

[0132] The second terminal receives the SL CSI MAC CE sent by the first terminal; wherein the SL CSI MAC CE includes sidelink channel state information of a fifth carrier, and the fifth carrier is a carrier selected by the first terminal from the one or more aggregated carriers.

[0133] In combination with some embodiments of the second aspect, in some embodiments, the SL CSI MAC CE further includes carrier indication information of the fifth carrier.

[0134] In combination with some embodiments of the second aspect, in some embodiments, the fifth carrier is any one carrier selected by the first terminal from the one or more aggregated carriers; or, the fifth carrier is a carrier selected by the first terminal from the one or more aggregated carriers that meets the first condition.

[0135] In conjunction with some embodiments of the second aspect, in some embodiments, the carrier selected from the one or more aggregated carriers that meets the first condition includes any one of the following:

[0136] A carrier with a lowest channel busy rate (CBR) selected from the one or more aggregated carriers;

[0137] A carrier with the highest CBR is selected from the one or more aggregated carriers.

[0138] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0139] The second terminal sends a delay limit requirement of an SL CSI report to the first terminal through PC5 radio resource control RRC signaling; wherein the duration of an SL CSI timer associated with the first terminal is the delay limit requirement.

[0140] In combination with some embodiments of the second aspect, in some embodiments, the delay limit requirement of the SL CSI report is configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; address granularity.

[0141] In a third aspect, an embodiment of the present disclosure proposes a first terminal, comprising at least one of a transceiver module and a processing module; wherein the first terminal is used to execute an optional implementation method of the first aspect.

[0142] In a fourth aspect, an embodiment of the present disclosure proposes a second terminal, comprising at least one of a transceiver module and a processing module; wherein the second terminal is used to execute the optional implementation method of the second aspect.

[0143] In a fifth aspect, an embodiment of the present disclosure provides a communication system, including:

[0144] A first terminal is configured as an optional implementation of the first aspect;

[0145] The second terminal is configured to execute an optional implementation of the aforementioned second aspect.

[0146] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, comprising: one or more processors; wherein the processor is used to call instructions to enable the communication device to execute the optional implementation method of the aforementioned first aspect.

[0147] In a seventh aspect, an embodiment of the present disclosure proposes a communication device, comprising: one or more processors; wherein the processor is used to call instructions to enable the communication device to execute the optional implementation method of the aforementioned second aspect.

[0148] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes optional implementation methods of the aforementioned first and second aspects.

[0149] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0150] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0151] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0152] It is understandable that the first terminal, the second terminal, the communication system, the storage medium, the program product, the computer program, the chip, or the chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0153] The present disclosure provides an information processing method and apparatus thereof. In some embodiments, the terms information processing method, communication method, etc. are interchangeable, the terms information processing apparatus, communication apparatus, etc. are interchangeable, and the terms information processing system, communication system, etc. are interchangeable.

[0154] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0155] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0156] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0157] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0158] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0159] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0160] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0161] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0162] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0163] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0164] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0165] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0166] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0167] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0168] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0169] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0170] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0171] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0172] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0173] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0174] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0175] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0176] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. The communication system may include, but is not limited to, a first terminal and a second terminal. The number and configuration of devices shown in Figure 1 are for example purposes only and do not limit the present disclosure. In actual applications, two or more first terminals and two or more second terminals may be included. The communication system 100 shown in Figure 1 includes, for example, a first terminal 101 and a second terminal 102.

[0177] In some embodiments, the first terminal 101 and the second terminal 102 are used to distinguish different description objects. The terminal herein can be an entity on the user side for receiving or transmitting signals, such as a mobile phone. It can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal can be at least one of a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.

[0178] In some embodiments, the network device may be an access network device. In some embodiments, the access network device is, for example, a node or device that connects a terminal device to a wireless network. The access network device may include, but is not limited to, at least one of an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a NodeB (NB), a home nodeB (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system.

[0179] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0180] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0181] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0182] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0183] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0184] To support direct communication between terminals, a direct link (also called sidelink, SL) communication mode is introduced. The interface between terminals is PC-5 (also called PC5). Three transmission modes are supported on the sidelink: unicast, multicast, and broadcast, depending on the correspondence between the transmitting and receiving terminals. The transmitting terminal sends sidelink control information (SCI) on the physical sidelink control channel (PSCCH) and second-stage SCI on the physical sidelink shared channel (PSSCH). These SCIs carry information such as the resource location of the transmitted data and the source and destination identifiers. For packets with Hybrid Automatic Repeat Request (HARQ) feedback enabled, the receiving terminal sends a Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) on the physical sidelink feedback channel (PSFCH).

[0185] In some embodiments, sidelink communication has two transmission resource allocation modes: one is the network dynamic scheduling mode (mode 1, also called the first resource allocation mode), and the other is the terminal autonomous selection mode from the network configured or pre-configured resource pool (mode 2, also called the second resource allocation mode). Dynamic scheduling means that the network dynamically allocates transmission resources on the sidelink to the terminal based on the terminal's cached data report, while autonomous selection means that the terminal randomly selects transmission resources from the network configured or pre-configured resource pool. The network can configure multiple resource pools for the terminal on a BWP (Bandwidth Part). The specific allocation mode to be used is configured by the network side through RRC (Radio Resource Control) signaling.

[0186] Carrier aggregation is a key technology in LTE-A. To meet the requirements for single-user peak data rates and improved system capacity, one of the most direct approaches is to increase the system transmission bandwidth. Therefore, LTE-Advanced introduces a bandwidth-enhancing technology called Carrier Aggregation (CA). CA aggregates multiple carriers (also called component carriers, CCs) to effectively increase uplink and downlink transmission rates.

[0187] LTE V2X supports sidelink carrier aggregation technology. Due to limited transmit and receive capabilities, terminals may only be able to receive sidelink services on one or several carriers. LTE V2X does not introduce any carrier selection / reselection enhancements to address the limited receiving capabilities of terminals. The reason is that LTE V2X only supports broadcast services and can rely on higher-layer implementations to determine which services are of interest and receive data only on carriers associated with the services of interest.

[0188] In wireless communications, channel state information (CSI) refers to the known channel characteristics of a communication link. CSI describes how a signal propagates through the channel from transmitter to receiver. CSI characterizes the combined effects of various factors, such as scattering, fading, and the loss of energy over distance. Channel state information can be used to adjust transmission based on current channel conditions, which is crucial for reliable high-bit-rate communication in multi-antenna systems.

[0189] However, in the New Radio Sidelink (NR Sidelink) carrier aggregation scenario, how to trigger the reporting of Sidelink Channel State Information (SL CSI) reporting is an issue that needs to be urgently addressed.

[0190] To this end, the embodiments of the present disclosure provide an information processing method and an apparatus thereof, which adopt carrier aggregation technology on the new radio interface sidelink, and can effectively improve the transmission rate of the sidelink; in addition, the second terminal sends SL SCI to the first terminal based on the aggregated carrier associated with the unicast connection to trigger the SL CSI report; the first terminal sends SL CSI MAC CE to the second terminal according to the SL SCI, so that the second terminal adjusts the transmission of the unicast connection according to the SL SCI included in the SL CSI MAC CE, thereby providing a guarantee for high-reliability and high-speed communication, and can solve the problem of how to trigger the reporting of SL CSI report in the new radio interface sidelink NR Sidelink carrier aggregation scenario.

[0191] FIG2A is an interactive diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in FIG2A , the information processing method according to an embodiment of the present disclosure can be applied to a communication system 100 , and the method includes but is not limited to the following steps.

[0192] Step S2101: The second terminal 102 sends SL SCI to the first terminal 101 on a first carrier. The SL SCI is used to trigger the first terminal 101 to send SL CSI of the first carrier.

[0193] In some embodiments, the second terminal 102 sends an SL SCI to the first terminal 101. The SL SCI is sent by the second terminal 102 on the first carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the first carrier. The SL SCI is used to trigger the first terminal 101 to send the SL CSI of the first carrier.

[0194] In some embodiments, a unicast connection is established on the sidelink between the first terminal 101 and the second terminal 102, and the unicast connection is associated with one or more aggregated carriers.

[0195] In some embodiments, the first carrier is one or more carriers among the one or more aggregated carriers. Exemplarily, the first carrier can be understood as one or more carriers among the one or more aggregated carriers that are triggered to report SL CSI. Exemplarily, the SL SCI sent by the second terminal 102 on the first carrier is used to trigger the first terminal 101 to send the SL CSI of the first carrier. Exemplarily, triggering the first terminal 101 to send the SL CSI of the first carrier can also be referred to as requesting the first terminal 101 to send the SL CSI of the first carrier.

[0196] In some embodiments, the SL SCI sent by the second terminal 102 on the first carrier may carry carrier indication information of the first carrier. Exemplarily, the carrier indication information of the first carrier may be an index of the first carrier.

[0197] In some embodiments, the SL SCI sent by the second terminal 102 on the first carrier may not carry the carrier indication information of the first carrier.

[0198] In step S2102, the first terminal 101 sends a SL CSI MAC CE (also called SL-CSI MAC CE, SL CSI report, or sidelink channel state information media access control element) to the second terminal 102 on the first carrier according to the above-mentioned SL SCI. The SL CSI MAC CE includes the sidelink channel state information (SL CSI) of the first carrier.

[0199] In some embodiments, the first terminal 101 sends an SL CSI MAC CE to the second terminal 102 according to the SL SCI. The SL CSI MAC CE may be sent by the first terminal 101 to the second terminal 102 on the first carrier. Accordingly, the second terminal 102 may receive the SL CSI MAC CE sent by the first terminal 101 on the first carrier, where the SL CSI MAC CE includes the SL CSI of the first carrier.

[0200] Exemplarily, since the above-mentioned SL SCI is used to trigger the first terminal 101 to send the SL CSI of the first carrier, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102 on the first carrier. The SL CSI included in the SL CSI MAC CE is the side link channel state information of the first carrier. That is, the SL SCI that triggers the SL CSI report sent by the second terminal 102 is only sent on the first carrier that is triggered to report, and the first terminal 101 only sends the SL CSI report of the first carrier on the first carrier, so that the SL CSI MAC CE sent by the first terminal 101 does not need to carry the carrier indication information of the first carrier, and the second terminal 102 can also know that the SL CSI report sent by the first terminal 101 is the SL CSI report of the first carrier. Exemplarily, the existing SL CSI MAC CE format can be reused, and the reserved bit does not need to indicate carrier information.

[0201] Optionally, in some embodiments, the CSI MAC CE sent by the first terminal 101 to the second terminal 102 on the first carrier may carry carrier indication information of the first carrier. Exemplarily, it is necessary to define a new SL CSI MAC CE format to indicate the carrier information of the first carrier, such as the index of the first carrier, by reserving bits. Exemplarily, the SL CSI MAC CE sent by the first terminal 101 to the second terminal 102 on the first carrier may indicate the SL CSI of the first carrier.

[0202] It should be noted that when the SLCSI report of the first carrier is triggered and the SLCSI report of the first carrier is reported, the influence of LCP can be taken into consideration, and the SL CSI MAC CE associated with the first carrier can only be sent on the sidelink grant (SL grant) on the first carrier. In some embodiments, the sidelink grant is determined to be a sidelink grant on the first carrier and / or the target address of the sidelink grant is the second terminal 102; the sidelink grant is a new transmission sidelink resource (or can also be called a new transmission resource, a SL resource for new transmission); the SL CSI MAC CE associated with the first carrier is multiplexed into a sidelink media access control protocol data unit (SL MAC PDU), and the SL MAC PDU is sent to the second terminal 102 through the sidelink grant. Among them, the new transmission sidelink resource can refer to the SL resource used for new transmission; the sidelink grant being a new transmission sidelink resource can be understood as the sidelink grant being used for new transmission.

[0203] For example, considering the impact of LCP, the SL CSI MAC CE of the first carrier can only be sent on the sidelink authorization on the first carrier. If the sidelink authorization of the LCP process is a sidelink authorization on other carriers, the SL CSI MAC CE of the first carrier is not considered in the LCP process.

[0204] In some embodiments, when the first terminal 101 determines that the first carrier triggers an SL CSI report and the SL CSI report triggered by the first carrier has not been canceled, the first terminal 101 starts the sidelink channel state information SL CSI timer associated with the first carrier; while the SL CSI timer associated with the first carrier is running, the first terminal 101 sends an SL CSI MAC CE to the second terminal 102, where the SL CSI MAC CE includes the sidelink channel state information CSI associated with the first carrier. Exemplarily, the SL CSI timer can be represented by the sl-CSI-ReportTimer parameter, or can be represented by other expressions, which are not specifically limited here.

[0205] That is to say, a SL CSI timer (also called SL CSI report timer) is maintained for each carrier associated with the unicast connection. Exemplarily, when the SL CSI report of the first carrier is triggered and the triggering status of the SL CSI report is not canceled (it can be understood that the first terminal 101 receives the SL SCI indication from the second terminal 102 to trigger the SL CSI report of the first carrier), if the SL CSI timer associated with the first carrier is not running, the SL CSI timer associated with the first carrier is started, and while the SL CSI timer associated with the first carrier is running, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102, and the SL CSI MAC CE includes the side link channel state information associated with the first carrier.

[0206] In some embodiments, when the first terminal 101 determines that the first carrier triggers the SL CSI report and the SL CSI report triggered by the first carrier has not been canceled, the first terminal 101 starts the side link channel state information SL CSI timer associated with the first carrier; when the first terminal 101 determines that the SL CSI timer associated with the first carrier has expired, the first terminal 101 cancels the SL CSI report triggered by the first carrier. Exemplarily, when the SL CSI report of the first carrier is triggered and the triggering status of the SL CSI report is not canceled (it can be understood that the first terminal 101 receives the SL SCI indication from the second terminal 102 to trigger the SL CSI report of the first carrier), if the SL CSI timer associated with the first carrier is not running, the SL CSI timer associated with the first carrier is started; if the SL CSI timer associated with the first carrier times out, the SL CSI report triggered by the first carrier is canceled; for example, if the SL CSI timer associated with the first carrier times out, the first terminal 101 does not generate the SL CSI MAC CE including the SL CSI of the first carrier, and / or does not send the SL CSI MAC CE including the SL CSI of the first carrier.

[0207] In some embodiments, during the operation of the SL CSI timer associated with the first carrier, the first terminal 101, upon determining that the first terminal 101 has new side link resources and the new side link resources may include an SL CSI MAC CE and a subheader of the SL CSI MAC CE, instructs the multiplexing and assembly entity to generate the SL CSI MAC CE, send the SL CSI MAC CE, stop the SL CSI timer associated with the first carrier, and cancel the SL CSI report triggered by the first carrier.

[0208] That is to say, during the operation of the SL CSI timer associated with the first carrier, if the first terminal 101 has a new side link resource and the new side link resource may include an SL CSI MAC CE and a subheader of the SL CSI MAC CE, it instructs the multiplexing and assembly entity to generate the SL CSI MAC CE, stop the SL CSI timer associated with the first carrier, and cancel the SL CSI report triggered by the first carrier.

[0209] In some embodiments, the second terminal 102 sends a delay bound requirement for the SL CSI report to the first terminal 101 via PC5 radio resource control RRC signaling. Accordingly, the first terminal 101 receives the delay bound requirement for the SL CSI report sent by the second terminal 102 via PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay bound requirement for the SL CSI report. Exemplarily, the delay bound requirement for the SL CSI report can be configured by the second terminal 102 to the first terminal 101 via PC5 RRC signaling.

[0210] In some embodiments, the delay limit requirement of the above-mentioned SL CSI report can be configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; address granularity. Exemplarily, the delay limit requirement of the above-mentioned SL CSI report can be configured according to carrier granularity, and the value of the SL CSI timer associated with the first carrier is the size of the delay limit requirement of the SL CSI report associated with the first carrier. Exemplarily, the delay limit requirement of the above-mentioned SL CSI report can be configured according to terminal granularity, and the value of the SL CSI timer associated with the first carrier is the size of the delay limit requirement of the SL CSI report associated with the first terminal.

[0211] In the above embodiment, the second terminal sends SL SCI on the first carrier that is triggered to report the SL CSI report. The SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier, and the first terminal sends the SL CSI of the first carrier to the second terminal on the first carrier that is triggered to report the SL CSI report. This can achieve the purpose of triggering the SL CSI report according to the carrier granularity, and can achieve the purpose of reporting the SL CSI report according to the carrier granularity, thereby solving the problem of how to trigger the reporting of the SL CSI report in the new radio interface sidelink NR Sidelink carrier aggregation scenario.

[0212] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0213] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0214] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0215] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0216] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0217] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0218] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2A .

[0219] Figure 2B is an interactive diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in Figure 2B, the information processing method according to an embodiment of the present disclosure can be applied to a communication system 100, and the method includes but is not limited to the following steps.

[0220] Step S2201: The second terminal 102 sends an SL SCI to the first terminal 101 on a second carrier.

[0221] In some embodiments, the second terminal 102 sends a SL SCI to the first terminal 101. The SL SCI is sent by the second terminal 102 on the second carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the second carrier. The SL SCI includes carrier indication information of the first carrier.

[0222] In some embodiments, a unicast connection is established on the sidelink between the first terminal 101 and the second terminal 102, and the unicast connection is associated with one or more aggregated carriers.

[0223] In some embodiments, the second carrier is one of the one or more aggregated carriers mentioned above, and the SL SCI sent by the second terminal 102 on the second carrier is used to trigger the first terminal 101 to send the SL CSI of the first carrier. Exemplarily, triggering the first terminal 101 to send the SL CSI of the first carrier can also be referred to as requesting the first terminal 101 to send the SL CSI of the first carrier. Exemplarily, the first carrier can be understood as one or more carriers among the one or more aggregated carriers mentioned above whose SL CSI report is triggered. Exemplarily, the first carrier can be multiple carriers, and the second terminal 102 can trigger the first terminal 101 to send the SL CSI of multiple carriers by sending the SCI on the second carrier. For example, the second terminal 102 can carry indication information of multiple carriers in the SCI sent on the second carrier.

[0224] In some embodiments, the SL SCI sent by the second terminal 102 on the second carrier carries the carrier indication information of the first carrier. Exemplarily, the carrier indication information of the first carrier may be an index of the first carrier.

[0225] In step S2202 , the first terminal 101 sends a SL CSI MAC CE to the second terminal 102 on the first carrier according to the SL SCI, where the SL CSI MAC CE includes sidelink channel state information (SL CSI) of the first carrier.

[0226] In some embodiments, the first terminal 101 sends an SL CSI MAC CE to the second terminal 102 according to the SL SCI. The SL CSI MAC CE may be sent by the first terminal 101 to the second terminal 102 on the first carrier. Accordingly, the second terminal 102 may receive the SL CSI MAC CE sent by the first terminal 101 on the first carrier, where the SL CSI MAC CE includes the SL CSI of the first carrier.

[0227] The optional implementation of step S2202 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0228] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2B .

[0229] In the above embodiment, the SL SCI is sent to the first terminal on any carrier by the second terminal, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier, and the SL CSI of the first carrier is sent to the second terminal by the first terminal on the first carrier that is triggered to report the SL CSI report. The purpose of triggering the SL CSI report according to the carrier granularity and the purpose of reporting the SL CSI report according to the carrier granularity can be achieved, thereby solving the problem of how to trigger the reporting of the SL CSI report in the new radio interface sidelink NR Sidelink carrier aggregation scenario.

[0230] Figure 2C is an interactive diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in Figure 2C, the information processing method according to an embodiment of the present disclosure can be applied to a communication system 100, and the method includes but is not limited to the following steps.

[0231] Step S2301: The second terminal 102 sends SL SCI to the first terminal 101 on a first carrier. The SL SCI is used to trigger the first terminal 101 to send SL CSI of the first carrier.

[0232] In some embodiments, a unicast connection is established on the sidelink between the first terminal 101 and the second terminal 102, and the unicast connection is associated with one or more aggregated carriers.

[0233] In some embodiments, the first carrier is one or more carriers among the one or more aggregated carriers. Exemplarily, the first carrier can be understood as one or more carriers among the one or more aggregated carriers for which SL CSI reporting is triggered.

[0234] The optional implementation of step S2301 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0235] In step S2302, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102 on the third carrier according to the SL SCI. The SL CSI MAC CE includes the sidelink channel state information of the first carrier and / or the carrier indication information of the first carrier.

[0236] In some embodiments, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102 according to the SL SCI, where the SL CSI MAC CE may be sent by the first terminal 101 to the second terminal 102 on the third carrier. Accordingly, the second terminal 102 may receive the SL CSI MAC CE sent by the first terminal 101 on the third carrier, where the SL CSI MAC CE includes the sidelink channel state information of the first carrier and / or carrier indication information of the first carrier.

[0237] In some embodiments, the third carrier is one of the one or more aggregated carriers.

[0238] In some embodiments, the SL CSI MAC CE sent by the first terminal 101 on the third carrier may include the SL CSI of the first carrier. In some embodiments, the SL CSI MAC CE sent by the first terminal 101 on the third carrier may include the SL CSI of the first carrier and the carrier indication information of the first carrier (such as the index of the first carrier). Exemplarily, it is necessary to define a new SL CSI MAC CE format, and indicate the carrier information of the first carrier, such as the index of the first carrier, by reserving bits. Exemplarily, the first terminal 101 needs to define a new SL CSI MAC CE format, and indicate the carrier information of the first carrier, such as the index of the first carrier, by reserving bits. Exemplarily, the SL CSI MAC CE sent by the first terminal 101 to the second terminal 102 on the third carrier may indicate the SL CSI of the first carrier. For example, the SL SCI sent by the second terminal 102 to the first terminal 101 through carrier A indicates that the first terminal sends the SL CSI of carrier A. The second terminal 102 sends SL SCI to the first terminal 101 through carrier B, indicating that the first terminal sends the SL CSI of carrier B. Then the SL-CSI MAC CE sent by the first terminal 101 to the second terminal 102 includes the SLCSI of carrier A and the SLCSI of carrier B, as well as the carrier indication information of carrier A (such as the index of carrier A) and the carrier indication information of carrier B (such as the index of carrier B).

[0239] In some embodiments, when the first terminal 101 determines that the first carrier triggers the SL CSI report and the SL CSI report triggered by the first carrier is not canceled, the first terminal 101 starts the side link channel state information SL CSI timer associated with the first carrier; during the operation of the SL CSI timer associated with the first carrier, the first terminal 101 sends an SL CSI MAC CE to the second terminal 102, and the SL CSI MAC CE includes the side link channel state information CSI associated with the first carrier.

[0240] That is to say, a SL CSI timer (also called SL CSI report timer) is maintained for each carrier associated with the unicast connection. Exemplarily, when the SL CSI report of the first carrier is triggered and the triggering status of the SL CSI report is not canceled (it can be understood that the first terminal 101 receives the SL SCI indication from the second terminal 102 to trigger the SL CSI report of the first carrier), if the SL CSI timer associated with the first carrier is not running, the SL CSI timer associated with the first carrier is started, and during the period when the SL CSI timer associated with the first carrier is running, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102 on the third carrier, and the SL CSI MAC CE includes the side link channel state information of the first carrier and / or the carrier indication information of the first carrier.

[0241] In some embodiments, when the first terminal 101 determines that the first carrier triggers the SL CSI report and the SL CSI report triggered by the first carrier has not been canceled, the first terminal 101 starts the side link channel state information SL CSI timer associated with the first carrier; when the first terminal 101 determines that the SL CSI timer associated with the first carrier has timed out, the first terminal 101 cancels the SL CSI report triggered by the first carrier. Exemplarily, when the SL CSI report of the first carrier is triggered and the triggering status of the SL CSI report is not canceled (it can be understood that the first terminal 101 receives the SL SCI indication from the second terminal 102 to trigger the SL CSI report of the first carrier), if the SL CSI timer associated with the first carrier is not running, the SL CSI timer associated with the first carrier is started; if the SL CSI timer associated with the first carrier has timed out, the SL CSI report triggered by the first carrier is canceled.

[0242] In some embodiments, during the operation of the SL CSI timer associated with the first carrier, the first terminal 101 determines that the first terminal has new transmission side link resources and the new transmission side link resources may include SL CSI MAC CE and the sub-header of the SL CSI MAC CE; instructs the multiplexing and assembly entity to generate the SL CSI MAC CE; stops the SL CSI timer associated with the first carrier, and cancels the SL CSI report triggered by the first carrier.

[0243] That is to say, during the operation of the SL CSI timer associated with the first carrier, if the first terminal 101 has a new side link resource and the new side link resource may include an SL CSI MAC CE and a subheader of the SL CSI MAC CE, it instructs the multiplexing and assembly entity to generate the SL CSI MAC CE, stop the SL CSI timer associated with the first carrier, and cancel the SL CSI report triggered by the first carrier.

[0244] In some embodiments, the second terminal 102 sends a delay bound requirement for the SL CSI report to the first terminal 101 via PC5 radio resource control RRC signaling. Accordingly, the first terminal 101 receives the delay bound requirement for the SL CSI report sent by the second terminal 102 via PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay bound requirement for the SL CSI report. Exemplarily, the delay bound requirement for the SL CSI report can be configured by the second terminal 102 to the first terminal via PC5 RRC signaling.

[0245] In some embodiments, the delay limit requirement of the above-mentioned SL CSI report can be configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; address granularity. Exemplarily, the delay limit requirement of the above-mentioned SL CSI report can be configured according to carrier granularity, and the value of the SL CSI timer associated with the first carrier is the size of the delay limit requirement of the SL CSI report associated with the first carrier. Exemplarily, the delay limit requirement of the above-mentioned SL CSI report can be configured according to terminal granularity, and the value of the SL CSI timer associated with the first carrier is the size of the delay limit requirement of the SL CSI report associated with the first terminal.

[0246] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2C .

[0247] In the above embodiment, the second terminal sends SL SCI on the first carrier that is triggered to report the SL CSI report. The SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier, and report the SL CSI report on any carrier through the first terminal. The reported SL CSI report is the SL CSI of the triggered carrier, which can achieve the purpose of triggering the SL CSI report according to the carrier granularity and the purpose of reporting the SL CSI report according to the carrier granularity, thereby solving the problem of how to trigger the SL CSI report in the new radio interface sidelink NR Sidelink carrier aggregation scenario.

[0248] Figure 2D is an interactive diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in Figure 2D, the information processing method according to the embodiment of the present disclosure can be applied to the communication system 100, and the method includes but is not limited to the following steps.

[0249] Step S2401: The second terminal 102 sends an SL SCI to the first terminal 101 on the second carrier.

[0250] In some embodiments, the second terminal 102 sends a SL SCI to the first terminal 101, where the SL SCI is sent by the second terminal 102 on the second carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the second carrier, where the SL SCI includes carrier indication information of the first carrier. Exemplarily, the SL SCI sent by the second terminal 102 on the second carrier is used to trigger the first terminal 101 to send the SL CSI of the first carrier.

[0251] The optional implementation of step S2401 can refer to the optional implementation of step S2201 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.

[0252] In step S2402, the first terminal 101 sends the SL CSI MAC CE to the second terminal 102 on the third carrier according to the SL SCI, and the SL CSI MAC CE includes the side link channel state information of the first carrier and / or the carrier indication information of the first carrier, wherein the third carrier is one of the one or more aggregated carriers.

[0253] In some embodiments, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102 according to the SL SCI, where the SL CSI MAC CE may be sent by the first terminal 101 to the second terminal 102 on the third carrier. Accordingly, the second terminal 102 may receive the SL CSI MAC CE sent by the first terminal 101 on the third carrier, where the SL CSI MAC CE includes the sidelink channel state information of the first carrier and / or carrier indication information of the first carrier.

[0254] The optional implementation of step S2402 can refer to the optional implementation of step S2302 in Figure 2C and other related parts in the embodiment involved in Figure 2C, which will not be repeated here.

[0255] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2D .

[0256] In the above embodiment, the SL SCI is sent to the first terminal on any carrier through the second terminal, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier, and the SL CSI report is reported on any carrier through the first terminal. The reported SL CSI report is the SL CSI of the triggered carrier, which can achieve the purpose of triggering the SL CSI report according to the carrier granularity and the purpose of reporting the SL CSI report according to the carrier granularity, thereby solving the problem of how to trigger the SL CSI report in the new radio interface sidelink NR Sidelink carrier aggregation scenario.

[0257] Figure 2E is an interactive diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in Figure 2E, the information processing method according to an embodiment of the present disclosure can be applied to a communication system 100, and the method includes but is not limited to the following steps.

[0258] Step S2501: The second terminal 102 sends SL SCI to the first terminal 101 on the fourth carrier.

[0259] In some embodiments, the second terminal 102 sends a SL SCI to the first terminal 101, where the SL SCI is sent by the second terminal 102 on the fourth carrier. Correspondingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the fourth carrier.

[0260] In some embodiments, a unicast connection is established on the sidelink between the first terminal 101 and the second terminal 102, and the unicast connection is associated with one or more aggregated carriers.

[0261] In some embodiments, the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal 102 on the fourth carrier is used to trigger the SL CSI of the first terminal 101. Exemplarily, the SL SCI sent by the second terminal 102 to the first terminal 101 can be sent on any aggregated carrier to achieve the purpose of triggering the SL SCI report according to the terminal granularity.

[0262] Step S2502: The first terminal 101 sends a SL CSI MAC CE to the second terminal 102 according to the SL SCI.

[0263] In some embodiments, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102 according to the above-mentioned SL SCI. Correspondingly, the second terminal 102 can receive the SL CSI MAC CE sent by the first terminal 101.

[0264] In some embodiments, the SL CSI MAC CE includes the side link channel state information of the one or more aggregated carriers. In some embodiments, the SL CSI MAC CE also includes carrier indication information of the one or more aggregated carriers. Exemplarily, the SL CSI MAC CE sent by the first terminal 101 to the second terminal 102 includes the side link channel state information of all aggregated carriers. Exemplarily, the SL CSI MAC CE sent by the first terminal 101 to the second terminal 102 includes the side link channel state information of some aggregated carriers. Exemplarily, the carrier information is indicated by reserved bits. Exemplarily, the reserved 3 bits can indicate up to 8 carrier information (e.g., carrier index). If 32 carriers are aggregated, the bits can be further extended to indicate carrier information.

[0265] In some embodiments, upon determining that the first terminal 101 triggers an SL CSI report and the SL CSI report triggered by the first terminal 101 is not canceled, the first terminal 101 starts an SL CSI timer associated with the first terminal 101; while the SL CSI timer associated with the first terminal 101 is running, the first terminal 101 sends the SL CSI MAC CE associated with the first terminal 101 to the second terminal 102. The SL CSI MAC CE includes the sidelink channel state information of the one or more aggregated carriers, and the SL CSI MAC CE also includes carrier indication information of the one or more aggregated carriers.

[0266] That is to say, a SL CSI timer (also called SL CSI report timer) is maintained for the unicast connection. Exemplarily, when the SL CSI report of the first terminal 101 is triggered and the triggering status of the SL CSI report is not canceled (it can be understood that the first terminal 101 receives the SL SCI indication from the second terminal 102 to trigger the SL CSI report of the first terminal 101), if the SL CSI timer associated with the first terminal 101 is not running, the SL CSI timer associated with the first terminal 101 is started, and while the SL CSI timer associated with the first terminal 101 is running, the first terminal 101 sends a SL CSI MAC CE to the second terminal 102. The SL CSI MAC CE includes the side link channel state information of the one or more aggregated carriers, and the SL CSI MAC CE also includes the carrier indication information of the one or more aggregated carriers.

[0267] In some embodiments, when the first terminal 101 determines that the SL CSI report is triggered by the first terminal 101 and the SL CSI report triggered by the first terminal 101 is not canceled, the first terminal 101 starts the SL CSI timer associated with the first terminal 101; when the first terminal 101 determines that the SL CSI timer associated with the first terminal 101 has timed out, the first terminal 101 cancels the SL CSI report triggered by the first terminal 101. Exemplarily, when the SL CSI report of the first terminal 101 is triggered and the triggering status of the SL CSI report is not canceled (it can be understood that the first terminal 101 receives an SL SCI indication from the second terminal 102 to trigger the SL CSI report of the first terminal 101), if the SL CSI timer associated with the first terminal 101 is not running, the SL CSI timer associated with the first terminal 101 is started; if the SL CSI timer associated with the first terminal 101 times out, the SL CSI report triggered by the first terminal 101 is canceled.

[0268] In some embodiments, during the operation of the SL CSI timer associated with the first carrier, the first terminal 101 determines that the first terminal 101 has new side link resources and the new side link resources may include an SL CSI MAC CE and a subheader of the SL CSI MAC CE; instructs the multiplexing and assembly entity to generate the SL CSI MAC CE; stops the SL CSI timer associated with the first terminal 101, and cancels the SL CSI report triggered by the first terminal 101.

[0269] That is to say, during the operation of the SL CSI timer associated with the first terminal 101, if the first terminal 101 has a new side link resource and the new side link resource may include an SL CSI MAC CE and a subheader of the SL CSI MAC CE, it instructs the multiplexing and assembly entity to generate the SL CSI MAC CE, stops the SL CSI timer associated with the first terminal 101, and cancels the SL CSI report triggered by the first terminal 101.

[0270] In some embodiments, the second terminal 102 sends a delay bound requirement for an SL CSI report to the first terminal 101 via PC5 radio resource control (RRC) signaling. Accordingly, the first terminal 101 receives the delay bound requirement for the SL CSI report sent by the second terminal 102 via PC5 radio resource control (RRC) signaling; the duration of the SL CSI timer associated with the first terminal 101 is the delay bound requirement for the SL CSI report. Exemplarily, the delay bound requirement for the SL CSI report may be configured by the second terminal 102 to the first terminal 101 via PC5 RRC signaling.

[0271] In some embodiments, the latency limit requirement of the SL CSI report can be configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; and address granularity. For example, the latency limit requirement of the SL CSI report can be configured according to terminal granularity, and the value of the SL CSI timer associated with the first terminal 101 is the size of the latency limit requirement of the SL CSI report associated with the first terminal 101.

[0272] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2E .

[0273] In the above embodiment, the SL SCI is sent to the first terminal on any carrier by the second terminal, and the SL SCI is used to trigger the SL CSI of the first terminal. The SL CSI report reported by the first terminal includes the side link channel state information of multiple carriers, which can achieve the purpose of triggering the SL CSI report according to the terminal granularity and the purpose of reporting the SL CSI report according to the carrier granularity, thereby solving the problem of how to trigger the SL CSI report in the new radio interface side link NR Sidelink carrier aggregation scenario.

[0274] Figure 2F is an interactive diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in Figure 2F, the information processing method according to the embodiment of the present disclosure can be applied to the communication system 100, and the method includes but is not limited to the following steps.

[0275] Step S2601: The second terminal 102 sends SL SCI to the first terminal 101 on the fourth carrier.

[0276] In some embodiments, the second terminal 102 sends a SL SCI to the first terminal 101, where the SL SCI is sent by the second terminal 102 on the fourth carrier. Correspondingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the fourth carrier.

[0277] In some embodiments, a unicast connection is established on the sidelink between the first terminal 101 and the second terminal 102, and the unicast connection is associated with one or more aggregated carriers.

[0278] In some embodiments, the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal 102 on the fourth carrier is used to trigger the SL CSI of the first terminal 101. Exemplarily, the SL SCI sent by the second terminal 102 to the first terminal 101 can be sent on any aggregated carrier to achieve the purpose of triggering the SL SCI report according to the terminal granularity.

[0279] Step S2602: The first terminal 101 selects a fifth carrier from the one or more aggregated carriers.

[0280] In some embodiments, the first terminal 101 may select a fifth carrier from the one or more aggregated carriers based on implementation.

[0281] In some embodiments, the first terminal 101 may select any one carrier from the one or more aggregated carriers as the fifth carrier.

[0282] In some embodiments, the first terminal 101 may select a carrier with the lowest CBR (channel busy ratio) from the one or more aggregated carriers as the fifth carrier.

[0283] In some embodiments, the first terminal 101 may select a carrier with the highest CBR from the one or more aggregated carriers as the fifth carrier.

[0284] Step S2603 : The first terminal 101 sends an SL CSI MAC CE to the second terminal 102 .

[0285] In some embodiments, after the first terminal 101 selects a fifth carrier from the one or more aggregated carriers, the first terminal 101 may send an SL CSI MAC CE to the second terminal 102. Correspondingly, the second terminal 101 may receive the SL CSI MAC CE sent by the first terminal 101.

[0286] In some embodiments, the first terminal 101 may send an SL CSI MAC CE to the second terminal 102 on the fifth carrier, where the SL CSI MAC CE includes the SL CSI of the fifth carrier and / or carrier indication information of the fifth carrier. Correspondingly, the second terminal 101 may receive the SL CSI MAC CE sent by the first terminal 101 on the fifth carrier. The fifth carrier may be a carrier selected by the first terminal 101 from the one or more aggregated carriers.

[0287] In some embodiments, the SL CSI MAC CE sent by the first terminal 101 to the second terminal 102 may include the sidelink channel state information of the fifth carrier. Exemplarily, the first terminal 101 selects a fifth carrier from the one or more aggregated carriers, and sends the SL CSI MAC CE to the second terminal 102 on the fifth carrier. The SL CSI MAC CE may include the SL CSI of the fifth carrier, and the SL CSI MAC CE may not carry the carrier indication information of the fifth carrier. For example, the first terminal 101 selects carrier A as the fifth carrier from the one or more aggregated carriers, and sends the SL CSI MAC CE to the second terminal 102 on the carrier A. The SL CSI MAC CE may include the SL CSI of the carrier A, and the SL CSI MAC CE may not carry the carrier indication information of the carrier A.

[0288] In some embodiments, the SL CSI MAC CE sent by the first terminal 101 to the second terminal 102 may include the sidelink channel state information of the fifth carrier, and the SL CSI MAC CE also includes carrier indication information of the fifth carrier. Exemplarily, the first terminal 101 selects a fifth carrier from the one or more aggregated carriers, and sends a SL CSI MAC CE to the second terminal 102 on a non-fifth carrier (other carriers in the one or more aggregated carriers except the fifth carrier). The SL CSI MAC CE may include the SL CSI of the fifth carrier, and the SL CSI MAC CE carries the carrier indication information of the fifth carrier. For example, the first terminal 101 selects carrier A as the fifth carrier from the one or more aggregated carriers, and sends a SL CSI MAC CE to the second terminal 102 on carrier B (such as carrier B is another carrier in the one or more aggregated carriers except carrier A). Then, the SL CSI MAC CE may include the SL CSI of carrier A, and the SL CSI MAC CE also needs to carry the carrier indication information of carrier A.

[0289] In some embodiments, when the first terminal 101 determines that the SL CSI report is triggered by the first terminal 101 and the SL CSI report triggered by the first terminal 101 is not canceled, the first terminal 101 starts the SL CSI timer associated with the first terminal 101; when the first terminal 101 determines that the SL CSI timer associated with the first terminal 101 has timed out, the first terminal 101 cancels the SL CSI report triggered by the first terminal 101. Exemplarily, when the SL CSI report of the first terminal 101 is triggered and the triggering status of the SL CSI report is not canceled (it can be understood that the first terminal 101 receives an SL SCI indication from the second terminal 102 to trigger the SL CSI report of the first terminal 101), if the SL CSI timer associated with the first terminal 101 is not running, the SL CSI timer associated with the first terminal 101 is started; if the SL CSI timer associated with the first terminal 101 times out, the SL CSI report triggered by the first terminal 101 is canceled.

[0290] In some embodiments, during the operation of the SL CSI timer associated with the first carrier, the first terminal 101 determines that the first terminal 101 has new side link resources and the new side link resources may include an SL CSI MAC CE and a subheader of the SL CSI MAC CE; instructs the multiplexing and assembly entity to generate the SL CSI MAC CE; stops the SL CSI timer associated with the first terminal 101, and cancels the SL CSI report triggered by the first terminal 101.

[0291] That is to say, during the operation of the SL CSI timer associated with the first terminal 101, if the first terminal 101 has a new side link resource and the new side link resource may include an SL CSI MAC CE and a subheader of the SL CSI MAC CE, it instructs the multiplexing and assembly entity to generate the SL CSI MAC CE, stops the SL CSI timer associated with the first terminal 101, and cancels the SL CSI report triggered by the first terminal 101.

[0292] In some embodiments, the second terminal 102 sends a delay bound requirement for an SL CSI report to the first terminal 101 via PC5 radio resource control (RRC) signaling. Accordingly, the first terminal 101 receives the delay bound requirement for the SL CSI report sent by the second terminal 102 via PC5 radio resource control (RRC) signaling, wherein the duration of the SL CSI timer associated with the first terminal 101 is the delay bound requirement for the SL CSI report. Exemplarily, the delay bound requirement for the SL CSI report may be configured by the second terminal 102 to the first terminal 101 via PC5 RRC signaling.

[0293] In some embodiments, the latency limit requirement of the SL CSI report can be configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; and address granularity. For example, the latency limit requirement of the SL CSI report can be configured according to terminal granularity, and the value of the SL CSI timer associated with the first terminal 101 is the size of the latency limit requirement of the SL CSI report associated with the first terminal 101.

[0294] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2F .

[0295] In the above embodiment, the second terminal sends SL SCI to the first terminal on any carrier, and the SL SCI is used to trigger the SL CSI of the first terminal. The first terminal selects the SL CSI of one carrier from the aggregated multiple carriers for reporting, which can achieve the purpose of triggering the SL CSI report according to the terminal granularity and the purpose of reporting the SL CSI report according to the terminal granularity, thereby solving the problem of how to trigger the SL CSI report in the new radio interface side link NR Sidelink carrier aggregation scenario.

[0296] FIG3A is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to an information processing method, which can be executed by the first terminal 101 and can include but is not limited to the following steps S3101 and S3102.

[0297] Step S3101: Receive SL SCI sent by the second terminal 102 on the first carrier, where the SL SCI is used to trigger the first terminal 101 to send SL CSI of the first carrier.

[0298] In some embodiments, the SL SCI may be sent by the second terminal 102 to the first terminal 101. For example, the second terminal 102 sends the SL SCI to the first terminal 101 on the first carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the first carrier, and the SL SCI is used to trigger the first terminal 101 to send the SL CSI of the first carrier.

[0299] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0300] Step S3102, according to the above-mentioned SL SCI, sends SL CSI MAC CE (also called SL-CSI MAC CE, SL CSI report, or sidelink channel state information media access control element) to the second terminal 102 on the first carrier, and the SL CSI MAC CE includes the sidelink channel state information (SL CSI) of the first carrier.

[0301] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0302] FIG3B is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to an information processing method, which can be executed by the first terminal 101 and can include but is not limited to the following steps S3201 and S3202.

[0303] Step S3201: Receive the SL SCI sent by the second terminal 102 on the second carrier.

[0304] In some embodiments, the SL SCI may be sent by the second terminal 102 to the first terminal 101. Exemplarily, the second terminal 102 sends the SL SCI to the first terminal 101 on the second carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the second carrier, where the SL SCI includes carrier indication information of the first carrier. Exemplarily, the SL SCI sent by the second terminal 102 on the second carrier is used to trigger the first terminal 101 to send the SL CSI of the first carrier.

[0305] The optional implementation of step S3201 can refer to the optional implementation of step S2201 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.

[0306] Step S3202: Send a SL CSI MAC CE to the second terminal 102 on the first carrier according to the SL SCI, where the SL CSI MAC CE includes sidelink channel state information (SL CSI) of the first carrier.

[0307] The optional implementation of step S3202 can refer to the optional implementation of step S2202 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.

[0308] FIG3C is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3C , the embodiment of the present disclosure relates to an information processing method, which can be executed by the first terminal 101 and can include but is not limited to the following steps S3301 and S3302.

[0309] Step S3301: Receive the SL SCI sent by the second terminal 102 on the first carrier.

[0310] In some embodiments, the SL SCI may be sent by the second terminal 102 to the first terminal 101. Exemplarily, the second terminal 102 sends the SL SCI to the first terminal 101 on the first carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the first carrier, and the SL SCI sent by the second terminal 102 on the first carrier is used to trigger the first terminal 101 to send the SL CSI of the first carrier.

[0311] The optional implementation of step S3301 can refer to the optional implementation of step S2301 in Figure 2C and other related parts in the embodiment involved in Figure 2C, which will not be repeated here.

[0312] Step S3302: According to the SL SCI, the SL CSI MAC CE is sent to the second terminal 102 on the third carrier, where the SL CSI MAC CE includes the sidelink channel state information of the first carrier and / or the carrier indication information of the first carrier.

[0313] The optional implementation of step S3302 can refer to the optional implementation of step S2302 in Figure 2C and other related parts in the embodiment involved in Figure 2C, which will not be repeated here.

[0314] FIG3D is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3D , the present disclosure embodiment relates to an information processing method, which can be executed by the first terminal 101 and may include but is not limited to the following steps S3401 and S3402.

[0315] Step S3401: Receive the SL SCI sent by the second terminal 102 on the second carrier.

[0316] In some embodiments, the SL SCI may be sent by the second terminal 102 to the first terminal 101. Exemplarily, the second terminal 102 sends the SL SCI to the first terminal 101 on the second carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the second carrier, and the SL SCI sent by the second terminal 102 on the second carrier is used to trigger the first terminal 101 to send the SL CSI of the first carrier.

[0317] The optional implementation of step S3401 can refer to the optional implementation of step S2401 in Figure 2D and other related parts in the embodiment involved in Figure 2D, which will not be repeated here.

[0318] Step S3402: According to the SL SCI, the SL CSI MAC CE is sent to the second terminal 102 on the third carrier, and the SL CSI MAC CE includes the side link channel state information of the first carrier and / or the carrier indication information of the first carrier, wherein the third carrier is one of the one or more aggregated carriers.

[0319] The optional implementation of step S3402 can refer to the optional implementation of step S2402 in Figure 2D and other related parts of the embodiment involved in Figure 2D, which will not be repeated here.

[0320] FIG3E is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3E , the embodiment of the present disclosure relates to an information processing method, which can be executed by the first terminal 101 and can include but is not limited to the following steps S3501 and S3502.

[0321] Step S3501: Receive the SL SCI sent by the second terminal 102 on the fourth carrier.

[0322] In some embodiments, the SL SCI may be sent by the second terminal 102 to the first terminal 101. For example, the second terminal 102 sends the SL SCI to the first terminal 101 on the fourth carrier. Accordingly, the first terminal 101 receives the SL SCI sent by the second terminal 102 on the fourth carrier, and the SL SCI sent by the second terminal 102 on the fourth carrier is used to trigger the SL CSI of the first terminal 101.

[0323] The optional implementation of step S3501 can refer to the optional implementation of step S2501 in Figure 2E and other related parts in the embodiment involved in Figure 2E, which will not be repeated here.

[0324] Step S3502: Send SL CSI MAC CE to the second terminal 102 according to the SL SCI.

[0325] The optional implementation of step S3502 can refer to the optional implementation of step S2502 in Figure 2E and other related parts of the embodiment involved in Figure 2E, which will not be repeated here.

[0326] FIG3F is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3F , the present disclosure embodiment relates to an information processing method, which can be executed by the first terminal 101 and may include but is not limited to the following steps S3601 and S3602.

[0327] Step S3601: Receive the SL SCI sent by the second terminal 102 on the fourth carrier.

[0328] In some embodiments, a unicast connection is established on the sidelink between the first terminal 101 and the second terminal 102, and the unicast connection is associated with one or more aggregated carriers.

[0329] In some embodiments, the fourth carrier is any carrier among the one or more aggregated carriers.

[0330] The optional implementation of step S3601 can refer to the optional implementation of step S2601 in Figure 2F and other related parts in the embodiment involved in Figure 2F, which will not be repeated here.

[0331] Step S3602 : Select a fifth carrier from the one or more aggregated carriers, and send an SL CSI MAC CE to the second terminal 102 .

[0332] The optional implementation of step S3602 can refer to the optional implementation of step S2602 and step S2603 in Figure 2F, and other related parts in the embodiment involved in Figure 2F, which will not be repeated here.

[0333] FIG3G is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG3G , the present disclosure embodiment relates to an information processing method, which can be executed by the first terminal 101 and can include but is not limited to the following steps S3701 and S3702.

[0334] Step S3701, receiving the side link control information SL SCI sent by the second terminal 102, which is used to trigger the side link channel state information SL CSI report; wherein, a unicast connection is established on the side link between the first terminal 101 and the second terminal 102, and the unicast connection is associated with one or more aggregated carriers.

[0335] Step S3702: Send a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal 102 according to the SL SCI.

[0336] In some embodiments, the first terminal receives the SL SCI sent by the second terminal on a first carrier, where the first carrier is one or more carriers among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the first carrier is used to trigger the first terminal to send the SL CSI of the first carrier. The first terminal sends the SL CSI MAC CE to the second terminal on the first carrier based on the SL SCI, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

[0337] In some embodiments, the first terminal receives an SL SCI sent by the second terminal on a second carrier, where the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of the one or more aggregated carriers, and the SL SCI sent by the second terminal on the second carrier is used to trigger the first terminal to send the SL CSI of the first carrier. The first terminal sends the SL CSI MAC CE to the second terminal on the first carrier based on the SL SCI, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

[0338] In some embodiments, the first terminal sends the SL CSI MAC CE to the second terminal on the first carrier based on the SL SCI, including: determining that the sidelink authorization is a sidelink authorization on the first carrier and / or the target address of the sidelink authorization is the second terminal; the sidelink authorization is a new transmission sidelink resource; multiplexing the SL CSI MAC CE associated with the first carrier into the sidelink media access control protocol data unit SL MAC PDU, and sending the SL MAC PDU to the second terminal through the sidelink authorization.

[0339] In some embodiments, the first terminal receives the SL SCI sent by the second terminal on the first carrier, wherein the first carrier is one or more carriers among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the first carrier is used to trigger the first terminal to send the SL CSI of the first carrier. The first terminal sends the SL CSI MAC CE to the second terminal on a third carrier based on the SL SCI, and the SL CSI MAC CE includes the sidelink channel state information of the first carrier and / or the carrier indication information of the first carrier, wherein the third carrier is one of the one or more aggregated carriers.

[0340] In some embodiments, the first terminal receives the SL SCI sent by the second terminal on the second carrier, where the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of the one or more aggregated carriers, and the SL SCI sent by the second terminal on the second carrier is used to trigger the first terminal to send the SL CSI of the first carrier. The first terminal sends the SL CSI MAC CE to the second terminal on a third carrier based on the SL SCI, where the SL CSI MAC CE includes sidelink channel state information of the first carrier and / or carrier indication information of the first carrier, wherein the third carrier is one of the one or more aggregated carriers.

[0341] In some embodiments, the first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal based on the SL SCI, including: determining that the first carrier triggers the SL CSI report and the SL CSI report triggered by the first carrier is not canceled, starting the sidelink channel state information SL CSI timer associated with the first carrier; during the operation of the SL CSI timer associated with the first carrier, sending the SL CSI MAC CE to the second terminal, the SL CSI MAC CE including the sidelink channel state information CSI associated with the first carrier.

[0342] In some embodiments, the first terminal determines that the SL CSI timer associated with the first carrier has expired, and cancels the SL CSI report triggered by the first carrier.

[0343] In some embodiments, the first terminal sends a SL CSI MAC CE to the second terminal, including: determining that the first terminal has new side link resources and the new side link resources may include the SL CSI MAC CE and the sub-header of the SL CSI MAC CE; instructing the multiplexing and assembly entity to generate the SL CSI MAC CE; stopping the SL CSI timer associated with the first carrier, and canceling the SL CSI report triggered by the first carrier.

[0344] In some embodiments, the first terminal receives a delay bound requirement of an SL CSI report sent by the second terminal through PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay bound requirement.

[0345] In some embodiments, the first terminal receives the SL SCI sent by the second terminal on a fourth carrier, wherein the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger the SL CSI of the first terminal. The first terminal sends an SL CSI MAC CE to the second terminal 102 based on the SL SCI. The SL CSI MAC CE includes sidelink channel state information of the one or more aggregated carriers. In some embodiments, the SL CSI MAC CE also includes carrier indication information of the one or more aggregated carriers.

[0346] In some embodiments, the first terminal receives the SL SCI sent by the second terminal on a fourth carrier, wherein the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger the SL CSI of the first terminal. The first terminal selects a fifth carrier from the one or more aggregated carriers and sends an SL CSI MAC CE to the second terminal, where the SL CSI MAC CE includes sidelink channel state information of the fifth carrier. Optionally, the SL CSI MAC CE also includes carrier indication information of the fifth carrier.

[0347] In some embodiments, the first terminal selects a fifth carrier from the one or more aggregated carriers, including: selecting any one carrier from the one or more aggregated carriers as the fifth carrier; or, selecting a carrier that meets the first condition from the one or more aggregated carriers as the fifth carrier.

[0348] In some embodiments, selecting a carrier that meets the first condition from the one or more aggregated carriers includes any one of the following: selecting a carrier with the lowest channel busy rate CBR from the one or more aggregated carriers; selecting a carrier with the highest CBR from the one or more aggregated carriers.

[0349] In some embodiments, the first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal based on the SL SCI, including: determining that the first terminal triggers the SL CSI report and the SL CSI report triggered by the first terminal has not been canceled, starting the SL CSI timer associated with the first terminal; and sending the SL CSI MAC CE to the second terminal during the operation of the SL CSI timer associated with the first terminal.

[0350] In some embodiments, the first terminal determines that the SL CSI timer associated with the first terminal has timed out, and cancels the SL CSI report triggered by the first terminal.

[0351] In some embodiments, sending the SL CSI MAC CE to the second terminal includes: determining that the first terminal has new side link resources and the new side link resources may include the SL CSI MAC CE and the sub-header of the SL CSI MAC CE; instructing the multiplexing and assembly entity to generate the SL CSI MAC CE; stopping the SL CSI timer associated with the first terminal, and canceling the SL CSI report triggered by the first terminal.

[0352] In some embodiments, the first terminal receives a delay bound requirement of an SL CSI report sent by the second terminal through PC5 radio resource control RRC signaling; wherein the duration of an SL CSI timer associated with the first terminal is the delay bound requirement.

[0353] In some embodiments, the delay bound requirement of the SL CSI report is configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; address granularity.

[0354] FIG4A is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second terminal 102 and may include but is not limited to the following steps S4101 and S4102.

[0355] Step S4101: Send SL SCI to the first terminal 101 on a first carrier, where the SL SCI is used to trigger the first terminal 101 to send SL CSI of the first carrier.

[0356] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0357] Step S4102: Receive the SL CSI MAC CE sent by the first terminal 101 on the first carrier, where the SL CSI MAC CE includes sidelink channel state information (SL CSI) of the first carrier.

[0358] In some embodiments, the SL CSI MAC CE is sent by the first terminal 101 to the second terminal 102. Exemplarily, the first terminal 101 sends the SL CSI MAC CE to the second terminal 102 on the first carrier according to the SL SCI. Correspondingly, the second terminal 102 can receive the SL CSI MAC CE sent by the first terminal 101 on the first carrier.

[0359] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0360] FIG4B is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second terminal 102 and can include but is not limited to the following steps S4201 and S4202.

[0361] Step S4201: Send SL SCI to the first terminal 101 on the second carrier.

[0362] The optional implementation of step S4201 can refer to the optional implementation of step S2201 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.

[0363] Step S4202: Receive an SL CSI MAC CE sent by the first terminal 101 on the first carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

[0364] In some embodiments, the SL CSI MAC CE is sent by the first terminal 101 to the second terminal 102. Exemplarily, the first terminal 101 sends the SL CSI MAC CE to the second terminal 102 on the first carrier according to the SL SCI. Correspondingly, the second terminal 102 can receive the SL CSI MAC CE sent by the first terminal 101 on the first carrier.

[0365] The optional implementation of step S4202 can refer to the optional implementation of step S2202 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.

[0366] FIG4C is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4C , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second terminal 102 and can include but is not limited to the following steps S4301 and S4302.

[0367] Step S4301: Send SL SCI to the first terminal 101 on a first carrier, where the SL SCI is used to trigger the first terminal 101 to send SL CSI of the first carrier.

[0368] The optional implementation of step S4301 can refer to the optional implementation of step S2301 in Figure 2C and other related parts in the embodiment involved in Figure 2C, which will not be repeated here.

[0369] Step S4302: Receive the SL CSI MAC CE sent by the first terminal 101 on the third carrier, where the SL CSI MAC CE includes the sidelink channel state information of the first carrier and / or carrier indication information of the first carrier.

[0370] In some embodiments, the SL CSI MAC CE is sent by the first terminal 101 to the second terminal 102. Exemplarily, the first terminal 101 sends the SL CSI MAC CE to the second terminal 102 on the third carrier according to the SL SCI. Correspondingly, the second terminal 102 can receive the SL CSI MAC CE sent by the first terminal 101 on the third carrier.

[0371] The optional implementation of step S4302 can refer to the optional implementation of step S2302 in Figure 2C and other related parts in the embodiment involved in Figure 2C, which will not be repeated here.

[0372] FIG4D is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4D , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second terminal 102 and can include but is not limited to the following steps S4401 and S4402.

[0373] Step S4401: Send SL SCI to the first terminal 101 on the second carrier.

[0374] The optional implementation of step S4401 can refer to the optional implementation of step S2401 in Figure 2D and other related parts of the embodiment involved in Figure 2D, which will not be repeated here.

[0375] Step S4402: Receive the SL CSI MAC CE sent by the first terminal 101 to the second terminal 102 on the third carrier, where the SL CSI MAC CE includes the side link channel state information of the first carrier and / or the carrier indication information of the first carrier, wherein the third carrier is one of the one or more aggregated carriers.

[0376] In some embodiments, the SL CSI MAC CE is sent by the first terminal 101 to the second terminal 102. Exemplarily, the first terminal 101 sends the SL CSI MAC CE to the second terminal 102 on the third carrier according to the SL SCI. Correspondingly, the second terminal 102 can receive the SL CSI MAC CE sent by the first terminal 101 on the third carrier.

[0377] The optional implementation of step S4402 can refer to the optional implementation of step S2402 in Figure 2D and other related parts of the embodiment involved in Figure 2D, which will not be repeated here.

[0378] FIG4E is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4E , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second terminal 102 and can include but is not limited to the following steps S4501 and S4502.

[0379] Step S4501: Send SL SCI to the first terminal 101 on the fourth carrier.

[0380] The optional implementation of step S4501 can refer to the optional implementation of step S2501 in Figure 2E and other related parts in the embodiment involved in Figure 2E, which will not be repeated here.

[0381] Step S4502: Receive the SL CSI MAC CE sent by the first terminal 101.

[0382] In some embodiments, the SL CSI MAC CE is sent by the first terminal 101 to the second terminal 102. Accordingly, the second terminal 102 may receive the SL CSI MAC CE sent by the first terminal 101.

[0383] In some embodiments, the SL CSI MAC CE may include SL CSI of one or more aggregated carriers and / or carrier indication information of one or more aggregated carriers.

[0384] The optional implementation of step S4502 can refer to the optional implementation of step S2502 in Figure 2E and other related parts of the embodiment involved in Figure 2E, which will not be repeated here.

[0385] FIG4F is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4F , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second terminal 102 and can include but is not limited to the following steps S4601 and S4602.

[0386] Step S4601: Send SL SCI to the first terminal 101 on the fourth carrier.

[0387] The optional implementation of step S4601 can refer to the optional implementation of step S2601 in Figure 2F and other related parts in the embodiment involved in Figure 2F, which will not be repeated here.

[0388] Step S4602: Receive the SL CSI MAC CE sent by the first terminal 101.

[0389] In some embodiments, the SL CSI MAC CE is sent from the first terminal 101 to the second terminal 102 .

[0390] In some embodiments, the SL CSI MAC CE may include sidelink channel state information of the fifth carrier and / or carrier indication information of the fifth carrier. In some embodiments, the fifth carrier may be a carrier selected by the first terminal 101 from one or more aggregated carriers. Exemplarily, the SL CSI MAC CE is sent by the first terminal 101 to the second terminal 102 on the fifth carrier.

[0391] The optional implementation of step S4602 can refer to the optional implementation of step S2602 and step S2603 in Figure 2F, and other related parts in the embodiment involved in Figure 2F, which will not be repeated here.

[0392] FIG4G is a flowchart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4G , the embodiment of the present disclosure relates to an information processing method, which can be executed by the second terminal 102 and can include but is not limited to the following steps S4701 and S4702.

[0393] Step S4701: Send sidelink control information SL SCI to the first terminal, where SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers.

[0394] Step S4701: Receive a sidelink channel state information report media access control element SL CSI MAC CE sent by a first terminal.

[0395] In some embodiments, the second terminal sends an SL SCI to the first terminal on a first carrier, where the first carrier is one or more carriers among one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier. The second terminal receives the SL CSI MAC CE sent by the first terminal on the first carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

[0396] In some embodiments, the second terminal sends a SL SCI to the first terminal on a second carrier, where the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier. The second terminal receives the SL CSI MAC CE sent by the first terminal on the first carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

[0397] In some embodiments, the second terminal sends a delay bound requirement of an SL CSI report to the first terminal via PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay bound requirement.

[0398] In some embodiments, the second terminal sends an SL SCI to the first terminal on a first carrier, where the first carrier is one or more carriers among one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier. The second terminal receives an SL CSI MAC CE sent by the first terminal on a third carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier and / or carrier indication information of the first carrier; where the third carrier is one of the one or more aggregated carriers.

[0399] In some embodiments, the second terminal sends an SL SCI to the first terminal on a second carrier, where the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier. The second terminal receives an SL CSI MAC CE sent by the first terminal on a third carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier and / or carrier indication information of the first carrier; wherein the third carrier is one of the one or more aggregated carriers.

[0400] In some embodiments, the second terminal sends an SL SCI to the first terminal on a fourth carrier, wherein the fourth carrier is any carrier among one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger the SL CSI of the first terminal. The second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal. The SL CSI MAC CE includes sidelink channel state information of one or more aggregated carriers. Optionally, the SL CSI MAC CE also includes carrier indication information of one or more aggregated carriers.

[0401] In some embodiments, the second terminal sends an SL SCI to the first terminal on a fourth carrier, where the fourth carrier is any carrier among one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger the SL CSI of the first terminal. The second terminal receives an SL CSI MAC CE sent by the first terminal; wherein the SL CSI MAC CE includes sidelink channel state information of a fifth carrier, and the fifth carrier is a carrier selected by the first terminal from the one or more aggregated carriers. The SL CSI MAC CE also includes carrier indication information of the fifth carrier.

[0402] In some embodiments, the fifth carrier is any one carrier selected by the first terminal from one or more aggregated carriers; or, the fifth carrier is a carrier selected by the first terminal from one or more aggregated carriers that meets the first condition.

[0403] In some embodiments, the carrier selected from one or more aggregated carriers that meets the first condition includes any one of the following: a carrier with the lowest channel busy rate (CBR) selected from one or more aggregated carriers; or a carrier with the highest CBR selected from one or more aggregated carriers.

[0404] In some embodiments, the second terminal sends a delay bound requirement of an SL CSI report to the first terminal via PC5 radio resource control RRC signaling; wherein the duration of an SL CSI timer associated with the first terminal is the delay bound requirement.

[0405] In some embodiments, the delay bound requirement of the SL CSI report is configured according to any of the following granularities: carrier granularity; frequency band granularity; frequency segment granularity; terminal granularity; target address granularity; address granularity.

[0406] The method involved in the embodiment of the present disclosure can be applied to the communication system 100, and the above method includes but is not limited to the following steps.

[0407] In step S5101, the second terminal sends sidelink control information SL SCI to the first terminal, where SL SCI is used to trigger a sidelink channel state information SL CSI report; a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers.

[0408] The optional implementation of step S5101 can be found in the optional implementation of step S2101 in Figure 2A, step S2201 in Figure 2B, step S2301 in Figure 2C, step S2401 in Figure 2D, step S2501 in Figure 2E and step S2601 in Figure 2F, as well as other related parts in the embodiments involved in Figures 2A to 2F, which will not be repeated here.

[0409] Step S5102: The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI.

[0410] For the optional implementation of step S5102, please refer to step S2102 of Figure 2A, step S2202 of Figure 2B, step S2302 of Figure 2C, step S2402 of Figure 2D, step S2502 of Figure 2E, and step S2602 and the optional implementation of step S2603 of Figure 2F, as well as other related parts in the embodiments involved in Figures 2A to 2F, which will not be repeated here.

[0411] It should be noted that the present disclosure provides a CSI reporting method under SL carrier aggregation, which solves the problem of how to trigger the reporting of SL-CSI reports in the NR sidelink carrier aggregation scenario and how to maintain the timer.

[0412] In some embodiments, the SL-CSI report is triggered and reported at a carrier granularity, and the terminal (such as the first terminal 101 in this article) maintains an SL CSI timer (such as sl-CSI-ReportTimer) for each carrier associated with the unicast connection.

[0413] In some embodiments, the SLSCI that triggers the SL-CSI report sent by the opposite terminal (such as the second terminal 102 in this document) is only sent on the carrier on which the report is triggered (such as the first carrier in this document). For example, if the opposite terminal requests CSI information on carrier A, the SCI that triggers the SL-CSI report is only sent on carrier A. The SCI may not carry carrier information (the carrier information that triggers the CSI report). As another example, the SCI that triggers the SL-CSI report sent by the opposite terminal may be sent on any carrier, and the SCI carries carrier information (the carrier information that triggers the CSI report).

[0414] In some embodiments, the terminal only sends the SL-CSI report of the carrier on the carrier that is triggered to report. Exemplarily, the existing SL-CSI MAC CE format is reused, and the reserved bit does not need to indicate the carrier information. Considering the impact of LCP, the SL-CSI MAC CE associated with carrier A can only be sent on the SL grant on carrier A. Specifically, if it is an SL grant on other carriers, the SL-CSI MAC CE associated with carrier A is not considered during the LCP process. As another example, the terminal can send the CSI information of the carrier that is triggered to report on any other carrier. It is necessary to define a new SL-CSI MAC CE format and indicate the carrier information, such as the carrier index, through the reserved bit. Exemplarily, the new SL-CSI MAC CE can indicate the CSI information of one or more carriers. For example, if carrier A and carrier B trigger SL-CSI reporting respectively, the CSI information of carrier A and carrier B can be reported through the new SL-CSI MAC CE.

[0415] In some embodiments, for each unicast connection associated with a source layer 2 address and a target layer 2 address pair established by a higher layer, the MAC entity of the terminal, if the SL-CSI report of the first carrier is triggered and not canceled (the SCI indication of the opposite UE is received to trigger the SL-CSI report of the first carrier), if the SL CSI timer associated with the first carrier is not running, start the SL CSI timer associated with the first carrier, if the SL CSI timer associated with the first carrier times out, cancel the SL-CSI report triggered by the first carrier, if there is a new sidelink resource and the LCP result is that the new sidelink resource can include an SL-CSI report (also called SL-CSI MAC CE) and its subheader, instructing the multiplexing and assembly entity to generate an SL-CSI MAC CE, stop the SL CSI timer associated with the first carrier, and cancel the SL-CSI report triggered by the first carrier. Exemplarily, the duration of the SL CSI timer associated with the first carrier can be the delay limit requirement of the SL CSI report associated with the first carrier (such as sl-LatencyBoundCSI-Report). Exemplarily, the sl-LatencyBoundCSI-Report can be configured according to carrier granularity, and the SL CSI timer associated with the first carrier takes the size of the sl-LatencyBoundCSI-Report associated with the first carrier. Exemplarily, the sl-LatencyBoundCSI-Report can be configured according to terminal granularity, and the SL CSI timer associated with the first carrier takes the size of the sl-LatencyBoundCSI-Report associated with the terminal.

[0416] In some embodiments, SL-CSI reporting is triggered at the terminal granularity and reported at the carrier granularity. The terminal device maintains an SL CSI timer for the unicast connected carrier. The SL-CSI MAC CE indicates the CSI information and carrier information of multiple carriers.

[0417] In some embodiments, the SCI that triggers the SL-CSI report sent by the opposite terminal can be sent on any aggregated carrier. For each unicast connection associated with the source layer 2 address and target layer 2 address pair established by the higher layer, the MAC entity of the terminal, if the SL-CSI report is triggered and not canceled (the SCI indication of triggering the SL-CSI report is received from the opposite UE), if the SL CSI timer is not running, start the SL CSI timer; if the SL CSI timer times out, cancel the triggered SL-CSI report; if there is a new sidelink resource and the LCP result is that the new sidelink resource can contain the SL-CSI report and its subheader, instruct the multiplexing and assembly entity to generate the SL-CSI MAC CE, stop the SL CSI timer, and cancel the triggered SL-CSI report.

[0418] In some embodiments, the SL-CSI report reported by the terminal includes CSI information for multiple carriers. Exemplarily, the SL-CSI report reported by the terminal includes CSI information for all aggregated carriers. Carrier information is indicated by reserved bits. Exemplarily, the reserved three bits can indicate information for up to eight carriers, such as carrier indices. If 32 carriers are aggregated, the bits used to indicate carrier information can be further expanded.

[0419] In some embodiments, the SL-CSI report is triggered and reported according to the terminal granularity, and the terminal device maintains an SL CSI timer for the unicast connection carrier.

[0420] Exemplarily, the SCI that triggers the SL-CSI report sent by the opposite terminal can be sent on any aggregated carrier. For each unicast connection associated with the source layer 2 address and target layer 2 address pair established by the higher layer, the MAC entity of the terminal, if the SL-CSI report is triggered and not canceled (the SCI indication of triggering the SL-CSI report is received from the opposite UE), if the SL CSI timer is not running, start the SL CSI timer; if the SL CSI timer times out, cancel the triggered SL-CSI report; if there is a new sidelink resource and the LCP result is that the new sidelink resource can contain the SL-CSI report and its subheader, instruct the multiplexing and assembly entity to generate the SL-CSI MAC CE, stop the SL CSI timer, and cancel the triggered SL-CSI report.

[0421] Exemplarily, the terminal selects the CSI of one carrier from the aggregated multiple carriers to report. Depending on the implementation, any aggregated carrier may be selected, or the carrier with the lowest / highest CBR may be selected, etc., and the existing MAC CE format may be used.

[0422] The embodiments of the present disclosure also provide apparatuses for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing each step performed by a first terminal in any of the above methods. For another example, another apparatus is provided that includes units or modules for implementing each step performed by a second terminal in any of the above methods.

[0423] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0424] In the embodiments of the present disclosure, the processor is a circuit with information processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0425] FIG5A is a schematic diagram of the structure of a first terminal proposed in an embodiment of the present disclosure. As shown in FIG5A , the first terminal 7100 may include at least one of a transceiver module 7101 and a processing module 7102. In some embodiments, the transceiver module is configured to receive sidelink control information (SL SCI) sent by a second terminal, where the SL SCI is used to trigger a sidelink channel state information (SL CSI) report; wherein a unicast connection is established on the sidelink between the communication device and the second terminal, and the unicast connection is associated with one or more aggregated carriers; and the transceiver module is further configured to send a sidelink channel state information report (SL CSI MAC CE) to the second terminal based on the SL SCI. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving performed by the first terminal 101 in any of the above methods (for example, steps S2101-S2102, steps S2201-S2202, steps S2301-S2302, steps S2401-S2402, steps S2501-S2502, steps S2601, and steps S2603, but not limited thereto), which are not described in detail here. Optionally, the processing module is used to execute at least one of the other steps (for example, step S2602, but not limited thereto) performed by the first terminal 101 in any of the above methods, which are not described in detail here.

[0426] Figure 5B is a schematic diagram of the structure of a second terminal proposed in an embodiment of the present disclosure. As shown in Figure 5B, the second terminal 7200 may include at least one of a transceiver module 7201 and a processing module 7202. In some embodiments, the transceiver module is configured to send sidelink control information (SL SCI) to the first terminal, where the SL SCI is used to trigger a sidelink channel state information (SL CSI) report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers; and the transceiver module is further configured to receive the SL CSI MAC CE sent by the first terminal. Optionally, the transceiver module is configured to execute at least one of the communication steps (e.g., steps S2101-S2102, S2201-S2202, S2301-S2302, S2401-S2402, S2501-S2502, S2601, and S2603) performed by the second terminal 7200 in any of the above methods, and these steps are not described in detail here. Optionally, the processing module is configured to execute at least one of the other steps performed by the second terminal 102 in any of the above methods, and these steps are not described in detail here.

[0427] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0428] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0429] Figure 6A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0430] As shown in Figure 6A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0431] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps of sending and / or receiving in the above method (e.g., steps S2101-S2102, steps S2201-S2202, steps S2301-S2302, steps S2401-S2402, steps S2501-S2502, step S2601, and step S2603, but not limited thereto), and the processor 8101 performs at least one of the other steps (e.g., step S2602, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface can be replaced with each other, terms such as transmitter, transmitting unit, transmitter, and transmitting circuit can be replaced with each other, and terms such as receiver, receiving unit, receiver, and receiving circuit can be replaced with each other.

[0432] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0433] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 6A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0434] 6B is a schematic diagram of the structure of the chip 8200 proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG6B, but the present disclosure is not limited thereto.

[0435] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0436] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0437] In some embodiments, the interface circuit 8202 performs at least one of the communication steps, such as sending and / or receiving, in the above method (e.g., steps S2101-S2102, steps S2201-S2202, steps S2301-S2302, steps S2401-S2402, steps S2501-S2502, steps S2601, and step S2603, but not limited thereto). The interface circuit 8202 performing the communication steps, such as sending and / or receiving, in the above method, for example, means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., step S2602, but not limited thereto).

[0438] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0439] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0440] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0441] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can 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 program can 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 can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available 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 high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0442] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0443] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0444] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. An information processing method, characterized in that: The method comprises: The first terminal receives sidelink control information SL SCI sent by the second terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers; The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI.

2. The method according to claim 1, characterized in that The first terminal receiving side link control information SL SCI sent by the second terminal includes: The first terminal receives the SL SCI sent by the second terminal on a first carrier, wherein the first carrier is one or more carriers among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the first carrier is used to trigger the first terminal to send the SL CSI of the first carrier.

3. The method according to claim 1, characterized in that The first terminal receiving side link control information SL SCI sent by the second terminal includes: The first terminal receives the SL SCI sent by the second terminal on the second carrier, and the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of the one or more aggregated carriers, and the SL SCI sent by the second terminal on the second carrier is used to trigger the first terminal to send the SL CSI of the first carrier.

4. The method according to claim 2 or 3, characterized in that The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI, including: The first terminal sends the SL CSI MAC CE to the second terminal on the first carrier according to the SL SCI, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

5. The method according to claim 2 or 3, characterized in that: The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI, including: The first terminal sends the SL CSI MAC CE to the second terminal on a third carrier based on the SL SCI, and the SL CSI MAC CE includes the side link channel state information of the first carrier and / or the carrier indication information of the first carrier, wherein the third carrier is one of the one or more aggregated carriers.

6. The method according to claim 4, characterized in that The first terminal sending the SL CSI MAC CE to the second terminal on the first carrier according to the SL SCI, including: Determine that the sidelink grant is a sidelink grant on the first carrier and / or the target address of the sidelink grant is the second terminal; the sidelink grant is a new transmission sidelink resource; The SL CSI MAC CE associated with the first carrier is multiplexed into a sidelink media access control protocol data unit SL MAC PDU, and the SL MAC PDU is sent to the second terminal through the sidelink grant.

7. The method according to any one of claims 2 to 6, characterized in that The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI, including: Determining that the first carrier triggers an SL CSI report and the SL CSI report triggered by the first carrier is not cancelled, and starting a sidelink channel state information SL CSI timer associated with the first carrier; During the period when the SL CSI timer associated with the first carrier is running, a SL CSI MAC CE is sent to the second terminal, where the SL CSI MAC CE includes sidelink channel state information CSI associated with the first carrier.

8. The method according to claim 7, characterized in that The method further comprises: It is determined that the SL CSI timer associated with the first carrier has timed out, and the SL CSI report triggered by the first carrier is canceled.

9. The method according to claim 7, characterized in that The sending the SL CSI MAC CE to the second terminal includes: Determine that the first terminal has a new transmission side link resource and the new transmission side link resource may include the SL CSI MAC CE and a subheader of the SL CSI MAC CE; Instructing the multiplexing and assembling entity to generate the SL CSI MAC CE; Stop the SL CSI timer associated with the first carrier, and cancel the SL CSI report triggered by the first carrier.

10. The method according to any one of claims 7 to 9, characterized in that The method further comprises: The first terminal receives a delay limit requirement of an SL CSI report sent by the second terminal via PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay limit requirement.

11. The method according to claim 1, characterized in that The first terminal receiving side link control information SL SCI sent by the second terminal includes: The first terminal receives the SL SCI sent by the second terminal on a fourth carrier, wherein the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger the SL CSI of the first terminal.

12. The method according to claim 11, characterized in that The SL CSI MAC CE includes sidelink channel state information of the one or more aggregated carriers.

13. The method according to claim 12, characterized in that The SL CSI MAC CE also includes carrier indication information of the one or more aggregated carriers.

14. The method according to claim 11, characterized in that The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI, including: The first terminal selects a fifth carrier from the one or more aggregated carriers, and sends a SL CSI MAC CE to the second terminal, where the SL CSI MAC CE includes sidelink channel state information of the fifth carrier.

15. The method according to claim 14, characterized in that The SL CSI MAC CE also includes carrier indication information of the fifth carrier.

16. The method according to claim 14 or 15, characterized in that The first terminal selecting a fifth carrier from the one or more aggregated carriers includes: Selecting any one carrier from the one or more aggregated carriers as the fifth carrier; or, A carrier satisfying a first condition is selected from the one or more aggregated carriers as a fifth carrier.

17. The method according to claim 16, characterized in that The selecting a carrier satisfying a first condition from the one or more aggregated carriers includes any one of the following: Selecting a carrier with a lowest channel busy rate CBR from the one or more aggregated carriers; A carrier with the highest CBR is selected from the one or more aggregated carriers.

18. The method according to any one of claims 11 to 17, characterized in that The first terminal sends a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI, including: Determining that the first terminal triggers an SL CSI report and the SL CSI report triggered by the first terminal is not cancelled, and starting an SL CSI timer associated with the first terminal; While the SL CSI timer associated with the first terminal is running, the SL CSI MAC CE is sent to the second terminal.

19. The method according to claim 18, characterized in that The method further comprises: It is determined that the SL CSI timer associated with the first terminal has timed out, and the SL CSI report triggered by the first terminal is canceled.

20. The method of claim 18, wherein: The sending the SL CSI MAC CE to the second terminal includes: Determine that the first terminal has a new transmission side link resource and the new transmission side link resource may include the SL CSI MAC CE and a subheader of the SL CSI MAC CE; Instructing the multiplexing and assembling entity to generate the SL CSI MAC CE; Stop the SL CSI timer associated with the first terminal, and cancel the SL CSI report triggered by the first terminal.

21. The method according to any one of claims 18 to 20, characterized in that The method further comprises: The first terminal receives a delay limit requirement of an SL CSI report sent by the second terminal via PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first terminal is the delay limit requirement.

22. The method according to claim 10 or 21, characterized in that The latency bound of the SL CSI report is required to be configured according to any of the following granularities: Carrier granularity; frequency band granularity; Frequency band granularity; Terminal granularity; Target address granularity; Address granularity.

23. An information processing method, characterized in that: The method comprises: The second terminal sends sidelink control information SL SCI to the first terminal, where the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers; The second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal.

24. The method of claim 23, wherein: The second terminal sends side link control information SL SCI to the first terminal, including: The second terminal sends a SL SCI to the first terminal on a first carrier, wherein the first carrier is one or more carriers among the one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send the SL CSI of the first carrier.

25. The method of claim 23, wherein: The second terminal sends side link control information SL SCI to the first terminal, including: The second terminal sends SL SCI to the first terminal on a second carrier, and the SL SCI includes carrier indication information of the first carrier; wherein the second carrier is one of the one or more aggregated carriers, and the SL SCI is used to trigger the first terminal to send SL CSI of the first carrier.

26. The method according to claim 24 or 25, characterized in that The second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal, including: The second terminal receives the SL CSI MAC CE sent by the first terminal on the first carrier, where the SL CSI MAC CE includes sidelink channel state information of the first carrier.

27. The method according to claim 24 or 25, characterized in that The second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal, including: The second terminal receives the SL CSI MAC CE sent by the first terminal on a third carrier, wherein the SL CSI MAC CE includes sidelink channel state information of the first carrier and / or carrier indication information of the first carrier; wherein the third carrier is one of the one or more aggregated carriers.

28. The method according to any one of claims 24 to 27, characterized in that The method further comprises: The second terminal sends a delay limit requirement of an SL CSI report to the first terminal via PC5 radio resource control RRC signaling; wherein the duration of the SL CSI timer associated with the first carrier is the delay limit requirement.

29. The method of claim 23, wherein: The second terminal sends side link control information SL SCI to the first terminal, including: The second terminal sends SL SCI to the first terminal on a fourth carrier, wherein the fourth carrier is any carrier among the one or more aggregated carriers, and the SL SCI sent by the second terminal on the fourth carrier is used to trigger SL CSI of the first terminal.

30. The method of claim 29, wherein: The SL CSI MAC CE includes sidelink channel state information of the one or more aggregated carriers.

31. The method of claim 30, wherein: The SL CSI MAC CE also includes carrier indication information of the one or more aggregated carriers.

32. The method of claim 29, wherein: The second terminal receives a sidelink channel state information report media access control element SL CSI MAC CE sent by the first terminal, including: The second terminal receives the SL CSI MAC CE sent by the first terminal, wherein the SL CSI MAC CE includes sidelink channel state information of a fifth carrier, and the fifth carrier is a carrier selected by the first terminal from the one or more aggregated carriers.

33. The method of claim 32, wherein: The SL CSI MAC CE also includes carrier indication information of the fifth carrier.

34. The method according to claim 32 or 33, characterized in that The fifth carrier is any one carrier selected by the first terminal from the one or more aggregated carriers; or, The fifth carrier is a carrier that satisfies a first condition and is selected by the first terminal from among the one or more aggregated carriers.

35. The method of claim 34, wherein: The carrier selected from the one or more aggregated carriers and satisfying the first condition includes any one of the following: A carrier with a lowest channel busy rate CBR selected from the one or more aggregated carriers; A carrier with the highest CBR is selected from the one or more aggregated carriers.

36. The method according to any one of claims 29 to 35, characterized in that The method further comprises: The second terminal sends the delay limit requirement of the SL CSI report to the first terminal through PC5 radio resource control RRC signaling; In the embodiment, the duration of the SL CSI timer associated with the first terminal is the delay limit requirement.

37. The method according to claim 28 or 36, characterized in that The latency bound of the SL CSI report is required to be configured according to any of the following granularities: Carrier granularity; frequency band granularity; Frequency band granularity; Terminal granularity; Target address granularity; Address granularity.

38. A communication system, characterized in that: include: A first terminal, configured to implement the information processing method according to any one of claims 1 to 22; The second terminal is configured to implement the information processing method according to any one of claims 23 to 37.

39. A first terminal, characterized in that: include: A transceiver module, configured to receive sidelink control information SL SCI sent by a second terminal, wherein the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers; The transceiver module is further used to send a sidelink channel state information report media access control element SL CSI MAC CE to the second terminal according to the SL SCI.

40. A second terminal, characterized in that: include: A transceiver module, configured to send sidelink control information SL SCI to a first terminal, wherein the SL SCI is used to trigger a sidelink channel state information SL CSI report; wherein a unicast connection is established on the sidelink between the first terminal and the second terminal, and the unicast connection is associated with one or more aggregated carriers; The transceiver module is further used to receive a side link channel state information report media access control control element SL CSI MAC CE sent by the first terminal.

41. A communication device, characterized in that: include: one or more processors; Wherein, the communication device is used to execute the information processing method described in any one of claims 1-22 and 23-37.

42. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the information processing method according to any one of claims 1-22 and 23-37.

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