Cross-carrier scheduling method and device, terminal and network equipment

Abstract

The invention provides a cross-carrier scheduling method and device, a terminal and network equipment. The method comprises: a first terminal sending first information to a second terminal, the first information comprising at least one of the following items: carrier information of a PSCCH; carrier wave information of the PSSCH; the mapping relation between the carrier information of the PSCCH and the carrier information of the PSSCH is obtained. In the application, a first terminal sends first information to a second terminal, and carrier information used during cross-carrier scheduling is indicated through the first information. Wherein the carrier information for transmitting the PSCCH and the carrier information for transmitting the PSSCH can be directly indicated, and the mapping relation between the carrier information of the PSCCH and the carrier information of the PSSCH can also be indicated. And the second terminal can receive corresponding data on the corresponding carrier according to the first information, so that cross-carrier scheduling is realized.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, apparatus, terminal and network equipment for cross-carrier scheduling. Background Art

[0002] In the sidelink (SL) carrier aggregation (CA) working mode, in order to improve the spectrum efficiency, a cross-carrier scheduling mode may be introduced, that is, the sidelink control information (SCI) and data of the sidelink are transmitted on different carriers, and SCI can schedule the carrier for data transmission.

[0003] There is no relevant configuration for cross-carrier scheduling in the current SL-related mechanism. The carrier frequency of the physical sidelink shared channel (PSSCH) scheduled by SCI belongs to the same carrier frequency as SCI, so SCI does not require additional carrier index information. The configuration information of the SL-related radio resource control (RRC) and the physical layer signaling cannot effectively support cross-carrier scheduling across SL links. Therefore, the execution method of the cross-carrier scheduling mechanism in SL CA needs to be solved urgently. Summary of the invention

[0004] The purpose of the present application is to provide a method, apparatus, terminal and network equipment for cross-carrier scheduling, which solves the problem of cross-carrier scheduling in SLCA.

[0005] An embodiment of the present application provides a method for cross-carrier scheduling, including:

[0006] The first terminal sends first information to the second terminal, where the first information includes at least one of the following:

[0007] Carrier information of the Physical SideLink Control Channel (PSCCH);

[0008] Carrier information of the physical direct link shared channel PSSCH;

[0009] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0010] Optionally, the carrier information includes at least one of the following:

[0011] The index of the carrier;

[0012] Bandwidth Part (BWP);

[0013] Index of BWP;

[0014] Carrier frequency information.

[0015] Optionally, the method further includes:

[0016] Sending second information to the network device, where the second information includes at least one of the following information:

[0017] Target layer 2 identification of the direct communication interface;

[0018] The carrier set of PSCCH;

[0019] BWP set of PSCCH;

[0020] Frequency set of PSCCH;

[0021] The carrier set of PSSCH;

[0022] BWP set of PSSCH;

[0023] The frequency set of PSSCH.

[0024] Optionally, the method further includes:

[0025] Sending third information to the network device, where the third information includes at least one of the following information:

[0026] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0027] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0028] The carrier information of PSCCH at the terminal level;

[0029] Carrier information of PSSCH at terminal level.

[0030] Optionally, the method further includes:

[0031] Sending fourth information to the network device, where the fourth information includes at least one of the following:

[0032] a channel busy ratio (CBR) corresponding to the target carrier; the target carrier is a carrier supported by the first terminal based on the layer 2 identifier;

[0033] The value of the Reference Signal Received Power (RSRP) of the direct communication link;

[0034] Information of the carrier corresponding to the direct communication link;

[0035] Information of a primary carrier suggested by the first terminal;

[0036] Information of a secondary carrier suggested by the first terminal;

[0037] Information of a primary carrier suggested by the second terminal;

[0038] Information about the secondary carrier suggested by the second terminal.

[0039] Optionally, the method further includes:

[0040] Receive configuration information sent by a network device, where the configuration information includes at least one of the following:

[0041] PSCCH carrier information;

[0042] PSSCH carrier information;

[0043] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0044] Optionally, the receiving configuration information sent by the network device includes at least one of the following:

[0045] Receiving direct link control information SCI sent by the network device through a physical downlink shared channel (PDSCH), wherein the SCI carries the configuration information;

[0046] receiving downlink control information (Downlink Control Information, DCI) sent by the network device, where the DCI is DCI corresponding to a direct link, and the DCI carries the configuration information;

[0047] Receive a first signaling sent by the network device through a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: a control unit (Control Element, CE) of a radio resource control RRC signaling and / or a medium access control (Medium Access Control, MAC).

[0048] Optionally, the sending the first information to the second terminal includes at least one of the following:

[0049] Sending an SCI to the second terminal, where the SCI carries the first information;

[0050] Send a second signaling to the second terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0051] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0052] or,

[0053] The second signaling carries the carrier information of the PSSCH, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0054] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other of the carrier information of PSSCH and PSCCH is configured to the second terminal by the network device, or is configured to the second terminal separately by the first terminal, or is obtained by the second terminal by monitoring on one or more carriers.

[0055] Optionally, the method further includes:

[0056] Determining to perform cross-carrier scheduling when a first condition is met;

[0057] The sending the first information to the second terminal includes:

[0058] In case it is determined to perform cross-carrier scheduling, first information is sent to the second terminal.

[0059] Optionally, the first condition includes at least one of the following:

[0060] The RSRP value of the carrier or link where the SCI is located is less than the first value;

[0061] The RSRP values ​​of other carriers or links except the carrier or link where the SCI is located are greater than the second value;

[0062] The channel busy rate CBR of the carrier where the SCI is located is greater than the third value;

[0063] The CBR values ​​of other carriers except the carrier where the SCI is located are less than the fourth value;

[0064] The carrier where the SCI is located is an unlicensed direct link (Sidelink-Unlicense, SL-U) channel, and the channel occupancy (Channel Occupancy, CO) value is greater than the fifth value;

[0065] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the received signal strength indication (Received Signal Strength Indication, RSSI) value is greater than the sixth value.

[0066] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0067] Optionally, the method further includes:

[0068] receiving fifth information sent by the second terminal;

[0069] determining the third information according to the fifth information;

[0070] The fifth information includes at least one of the following:

[0071] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0072] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0073] The carrier information of PSCCH at the terminal level;

[0074] Carrier information of PSSCH at terminal level.

[0075] Optionally, the method further includes:

[0076] Sending a frequency information list to the network device, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0077] Acquire frequency information sent by the network device;

[0078] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0079] Optionally, the method further comprises at least one of the following:

[0080] Sending an SCI to the second terminal, where the SCI carries the frequency information;

[0081] Send RRC signaling and / or MAC CE to the second terminal, where the RRC signaling and / or MAC CE carries the frequency information.

[0082] Optionally, the method further includes:

[0083] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0084] or,

[0085] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0086] An embodiment of the present application provides a method for cross-carrier scheduling, including:

[0087] The second terminal receives first information sent by the first terminal, where the first information includes at least one of the following:

[0088] PSCCH carrier information;

[0089] PSSCH carrier information;

[0090] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0091] Optionally, the carrier information includes at least one of the following:

[0092] The index of the carrier;

[0093] BWP;

[0094] Index of BWP;

[0095] Carrier frequency information.

[0096] Optionally, the receiving the first information sent by the first terminal includes at least one of the following:

[0097] receiving an SCI sent by the first terminal, where the SCI carries the first information;

[0098] Receive second signaling sent by the first terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0099] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0100] or,

[0101] The second signaling carries carrier information of the PSSCH, and the SCI carries scheduling information of the carrier corresponding to the PSSCH;

[0102] or,

[0103] The second terminal obtains the carrier information of the PSSCH based on the historical scheduling information, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0104] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other one of the carrier information of PSSCH and the carrier information of PSCCH is configured by the network device or configured by the first terminal alone, or obtained by monitoring on one or more carriers.

[0105] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0106] Optionally, the method further includes:

[0107] Sending fifth information to the first terminal;

[0108] The fifth information includes at least one of the following:

[0109] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0110] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0111] The carrier information of PSCCH at the terminal level;

[0112] Carrier information of PSSCH at terminal level.

[0113] Optionally, the method further comprises at least one of the following:

[0114] Receiving an SCI sent by the first terminal, where the SCI carries frequency information;

[0115] Receive RRC signaling and / or MAC CE sent by the first terminal, where the RRC signaling and / or MAC CE carries frequency information.

[0116] Optionally, the method further includes:

[0117] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0118] or,

[0119] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0120] An embodiment of the present application also provides a method for cross-carrier scheduling, including:

[0121] The network device sends configuration information to the first terminal, where the configuration information includes at least one of the following:

[0122] PSCCH carrier information;

[0123] PSSCH carrier information;

[0124] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0125] Optionally, the carrier information includes at least one of the following:

[0126] The index of the carrier;

[0127] BWP;

[0128] Index of BWP;

[0129] Carrier frequency information.

[0130] Optionally, the method further includes:

[0131] Receive second information sent by the first terminal, where the second information includes at least one of the following information:

[0132] Target layer 2 identification of the direct communication interface;

[0133] The carrier set of PSCCH;

[0134] BWP set of PSCCH;

[0135] Frequency set of SCCH;

[0136] The carrier set of PSSCH;

[0137] BWP set of PSSCH;

[0138] The frequency set of PSSCH.

[0139] Optionally, the method further includes:

[0140] Receive third information sent by the first terminal, where the third information includes at least one of the following information:

[0141] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0142] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0143] The carrier information of PSCCH at the terminal level;

[0144] Carrier information of PSSCH at terminal level.

[0145] Optionally, the method further includes:

[0146] receiving fourth information sent by the first terminal, where the fourth information includes at least one of the following:

[0147] A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier;

[0148] The value of the reference signal received power RSRP of the direct communication link;

[0149] Information of the carrier corresponding to the direct communication link;

[0150] Information of a primary carrier suggested by the first terminal;

[0151] Information of a secondary carrier suggested by the first terminal;

[0152] Information of a primary carrier suggested by the second terminal;

[0153] Information about the secondary carrier suggested by the second terminal.

[0154] Optionally, the method further includes:

[0155] The configuration information is determined according to at least one of the second information, the third information, and the fourth information.

[0156] Optionally, the sending configuration information to the first terminal includes at least one of the following:

[0157] Sending an SCI to the first terminal through a PDSCH, where the SCI carries the configuration information;

[0158] Sending a DCI to the first terminal, where the DCI is the DCI corresponding to the direct link, and the DCI carries the configuration information;

[0159] A first signaling is sent to the first terminal via a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: RRC signaling and / or MAC CE.

[0160] Optionally, the method further includes:

[0161] The carrier information of the PSCCH or the carrier information of the PSSCH is configured for the second terminal.

[0162] Optionally, the method further includes:

[0163] receiving a frequency information list sent by the first terminal, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0164] Sending frequency information to the first terminal;

[0165] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0166] An embodiment of the present application provides a terminal, including: a memory, a transceiver, and a processor:

[0167] A memory for storing a computer program; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0168] Sending first information to the second terminal, where the first information includes at least one of the following:

[0169] PSCCH carrier information;

[0170] PSSCH carrier information;

[0171] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0172] Optionally, the carrier information includes at least one of the following:

[0173] The index of the carrier;

[0174] BWP;

[0175] Index of BWP;

[0176] Carrier frequency information.

[0177] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0178] Sending second information to the network device, where the second information includes at least one of the following information:

[0179] Target layer 2 identification of the direct communication interface;

[0180] The carrier set of PSCCH;

[0181] BWP set of PSCCH;

[0182] Frequency set of PSCCH;

[0183] The carrier set of PSSCH;

[0184] BWP set of PSSCH;

[0185] The frequency set of PSSCH.

[0186] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0187] Sending third information to the network device, where the third information includes at least one of the following information:

[0188] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0189] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0190] The carrier information of PSCCH at the terminal level;

[0191] Carrier information of PSSCH at terminal level.

[0192] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0193] Sending fourth information to the network device, where the fourth information includes at least one of the following:

[0194] a CBR corresponding to a target carrier; the target carrier being a carrier supported by the first terminal based on a layer 2 identifier;

[0195] The value of the reference signal received power RSRP of the direct communication link;

[0196] Information of the carrier corresponding to the direct communication link;

[0197] Information of a primary carrier suggested by the first terminal;

[0198] Information of a secondary carrier suggested by the first terminal;

[0199] Information of a primary carrier suggested by the second terminal;

[0200] Information about the secondary carrier suggested by the second terminal.

[0201] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0202] Receive configuration information sent by a network device, where the configuration information includes at least one of the following:

[0203] PSCCH carrier information;

[0204] PSSCH carrier information;

[0205] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0206] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0207] Receiving direct link control information SCI sent by the network device through a physical downlink shared channel PDSCH, wherein the SCI carries the configuration information;

[0208] receiving downlink control information DCI sent by the network device, where the DCI is DCI corresponding to a direct link and the DCI carries the configuration information;

[0209] Receive a first signaling sent by the network device through a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: a radio resource control RRC signaling and / or a media access control control unit MAC CE.

[0210] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0211] Sending an SCI to the second terminal, where the SCI carries the first information;

[0212] Sending a second signaling to the second terminal, where the second signaling carries the first information;

[0213] The second signaling includes RRC signaling and / or MAC CE.

[0214] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0215] or,

[0216] The second signaling carries the carrier information of the PSSCH, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0217] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other of the carrier information of PSSCH and PSCCH is configured to the second terminal by the network device, or is configured to the second terminal separately by the first terminal, or is obtained by the second terminal by monitoring on one or more carriers.

[0218] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0219] Determining to perform cross-carrier scheduling when a first condition is met;

[0220] The sending the first information to the second terminal includes:

[0221] In case it is determined to perform cross-carrier scheduling, first information is sent to the second terminal.

[0222] Optionally, the first condition includes at least one of the following:

[0223] The RSRP value of the carrier or link where the SCI is located is less than the first value;

[0224] The RSRP values ​​of other carriers or links except the carrier or link where the SCI is located are greater than the second value;

[0225] The channel busy rate CBR of the carrier where the SCI is located is greater than the third value;

[0226] The CBR values ​​of other carriers except the carrier where the SCI is located are less than the fourth value;

[0227] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the channel occupancy rate CO is greater than the fifth value;

[0228] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the received signal strength indication RSSI value is greater than the sixth value.

[0229] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0230] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0231] receiving fifth information sent by the second terminal;

[0232] determining the third information according to the fifth information;

[0233] The fifth information includes at least one of the following:

[0234] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0235] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0236] The carrier information of PSCCH at the terminal level;

[0237] Carrier information of PSSCH at terminal level.

[0238] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0239] Sending a frequency information list to the network device, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0240] Acquire frequency information sent by the network device;

[0241] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0242] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0243] Sending an SCI to the second terminal, where the SCI carries the frequency information;

[0244] Send RRC signaling and / or MAC CE to the second terminal, where the RRC signaling and / or MAC CE carries the frequency information.

[0245] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0246] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0247] or,

[0248] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0249] An embodiment of the present application provides a terminal, including: a memory, a transceiver, and a processor:

[0250] A memory for storing a computer program; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0251] Receive first information sent by a first terminal, where the first information includes at least one of the following:

[0252] PSCCH carrier information;

[0253] PSSCH carrier information;

[0254] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0255] Optionally, the carrier information includes at least one of the following:

[0256] The index of the carrier;

[0257] BWP;

[0258] Index of BWP;

[0259] Carrier frequency information.

[0260] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0261] receiving an SCI sent by the first terminal, where the SCI carries the first information;

[0262] Receive second signaling sent by the first terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0263] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0264] or,

[0265] The second signaling carries carrier information of the PSSCH, and the SCI carries scheduling information of the carrier corresponding to the PSSCH;

[0266] or,

[0267] The second terminal obtains the carrier information of the PSSCH based on the historical scheduling information, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0268] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other one of the carrier information of PSSCH and the carrier information of PSCCH is configured by the network device or configured by the first terminal alone, or obtained by monitoring on one or more carriers.

[0269] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0270] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0271] Sending fifth information to the first terminal;

[0272] The fifth information includes at least one of the following:

[0273] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0274] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0275] The carrier information of PSCCH at the terminal level;

[0276] Carrier information of PSSCH at terminal level.

[0277] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0278] Receiving an SCI sent by the first terminal, where the SCI carries frequency information;

[0279] Receive RRC signaling and / or MAC CE sent by the first terminal, where the RRC signaling and / or MAC CE carries frequency information.

[0280] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0281] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0282] or,

[0283] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0284] An embodiment of the present application provides a network device, including: a memory, a transceiver, and a processor:

[0285] A memory for storing a computer program; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0286] Sending configuration information to the first terminal, where the configuration information includes at least one of the following:

[0287] PSCCH carrier information;

[0288] PSSCH carrier information;

[0289] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0290] Optionally, the carrier information includes at least one of the following:

[0291] The index of the carrier;

[0292] BWP;

[0293] Index of BWP;

[0294] Carrier frequency information.

[0295] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0296] Receive second information sent by the first terminal, where the second information includes at least one of the following information:

[0297] Target layer 2 identification of the direct communication interface;

[0298] The carrier set of PSCCH;

[0299] BWP set of PSCCH;

[0300] Frequency set of SCCH;

[0301] The carrier set of PSSCH;

[0302] BWP set of PSSCH;

[0303] The frequency set of PSSCH.

[0304] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0305] Receive third information sent by the first terminal, where the third information includes at least one of the following information:

[0306] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0307] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0308] The carrier information of PSCCH at the terminal level;

[0309] Carrier information of PSSCH at terminal level.

[0310] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0311] receiving fourth information sent by the first terminal, where the fourth information includes at least one of the following:

[0312] A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier;

[0313] The value of the reference signal received power RSRP of the direct communication link;

[0314] Information of the carrier corresponding to the direct communication link;

[0315] Information of a primary carrier suggested by the first terminal;

[0316] Information of a secondary carrier suggested by the first terminal;

[0317] Information of a primary carrier suggested by the second terminal;

[0318] Information about the secondary carrier suggested by the second terminal.

[0319] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0320] The configuration information is determined according to at least one of the second information, the third information, and the fourth information.

[0321] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0322] Sending an SCI to the first terminal through a PDSCH, where the SCI carries the configuration information;

[0323] Sending a DCI to the first terminal, where the DCI is the DCI corresponding to the direct link, and the DCI carries the configuration information;

[0324] A first signaling is sent to the first terminal via a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: RRC signaling and / or MAC CE.

[0325] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0326] The carrier information of the PSCCH or the carrier information of the PSSCH is configured for the second terminal.

[0327] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0328] receiving a frequency information list sent by the first terminal, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0329] Sending frequency information to the first terminal;

[0330] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0331] An embodiment of the present application provides a cross-carrier scheduling device, including:

[0332] The first sending unit is configured to send first information to the second terminal, where the first information includes at least one of the following:

[0333] Carrier information of the physical direct link control channel PSCCH;

[0334] Carrier information of the physical direct link shared channel PSSCH;

[0335] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0336] An embodiment of the present application provides a cross-carrier scheduling device, including:

[0337] The first receiving unit is configured to receive first information sent by a first terminal, where the first information includes at least one of the following:

[0338] PSCCH carrier information;

[0339] PSSCH carrier information;

[0340] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0341] An embodiment of the present application provides a cross-carrier scheduling device, including:

[0342] The second sending unit is configured to send configuration information to the first terminal, where the configuration information includes at least one of the following:

[0343] PSCCH carrier information;

[0344] PSSCH carrier information;

[0345] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0346] An embodiment of the present application provides a processor-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned cross-carrier scheduling method are implemented.

[0347] The beneficial effects of the above technical solution of the present application are:

[0348] In an embodiment of the present application, a first terminal sends a first message to a second terminal, and the first message indicates the carrier information used for cross-carrier scheduling. The carrier information for transmitting the PSCCH and the carrier information for transmitting the PSSCH can be directly indicated, or the mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH can be indicated. The second terminal can receive the corresponding data on the corresponding carrier according to the first message, thereby realizing cross-carrier scheduling. BRIEF DESCRIPTION OF THE DRAWINGS

[0349] Figure 1 A schematic diagram showing a flow chart of a method for cross-carrier scheduling according to an embodiment of the present application;

[0350] Figure 2 A schematic diagram showing a direct communication link according to an embodiment of the present application;

[0351] Figure 3 A second flowchart of the method for cross-carrier scheduling according to an embodiment of the present application is shown;

[0352] Figure 4 A third flowchart of the method for cross-carrier scheduling according to an embodiment of the present application is shown;

[0353] Figure 5 A fourth flowchart of the method for cross-carrier scheduling according to an embodiment of the present application is shown;

[0354] Figure 6 A fifth flowchart of the method for cross-carrier scheduling according to an embodiment of the present application is shown;

[0355] Figure 7 One of the structural schematic diagrams showing the apparatus for cross-carrier scheduling according to an embodiment of the present application;

[0356] Figure 8 A second structural diagram showing an apparatus for cross-carrier scheduling according to an embodiment of the present application;

[0357] Fig. 9 A third structural diagram showing an apparatus for cross-carrier scheduling according to an embodiment of the present application;

[0358] Fig.10 One of the schematic diagrams showing the structure of the terminal according to the embodiment of the present application;

[0359] Fig.11 A second schematic diagram showing the structure of a terminal according to an embodiment of the present application;

[0360] Fig.12 A schematic diagram showing the structure of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0361] In order to make the technical problems, technical solutions and advantages to be solved by the application clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, for clarity and brevity, the description of known functions and structures has been omitted.

[0362] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0363] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0364] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0365] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0366] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0367] The embodiments of the present application provide a method, apparatus, terminal and network device for cross-carrier scheduling, so as to solve the cross-carrier scheduling problem in SL CA.

[0368] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0369] like Figure 1 As shown, an embodiment of the present application provides a cross-carrier scheduling method, which is applied to a first terminal and specifically includes the following steps:

[0370] Step 101: A first terminal sends first information to a second terminal, where the first information includes at least one of the following:

[0371] Carrier information of the physical direct link control channel PSCCH;

[0372] Carrier information of the physical direct link shared channel PSSCH;

[0373] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0374] In this embodiment, the second terminal is a peer terminal that directly communicates with the first terminal. Direct communication refers to a method in which adjacent terminals can transmit data over a short distance through a direct communication link (also called Sidelink or PC5). The wireless interface corresponding to the Sidelink link is called a direct communication interface (also called a Sidelink interface or a PC5 interface). Figure 2 As shown. In the direct communication interface, the UE can work in unicast (UC), broadcast (BC), and groupcast (GC). In UC, the Tx UE and the Receive (Rx) UE are connected by the SL RRC to send messages at the RRC layer.

[0375] The first terminal may be a transmitting terminal for direct communication, and the second terminal may be a receiving terminal for direct communication. The first terminal sends first information to the second terminal, and the first information indicates the carrier-related information used for cross-carrier scheduling, for example: directly indicating the carrier information of PSCCH, indicating the carrier information of PSSCH, and also indicating the mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH. The mapping relationship may be the corresponding relationship between the carrier information of PSCCH and the carrier information of PSSCH, for example: when the carrier for transmitting PSCCH is carrier 1, the corresponding carrier for transmitting PSSCH is carrier 2; when the carrier for transmitting PSCCH is carrier 3, the corresponding carrier for transmitting PSSCH is carrier 4.

[0376] It should be noted that the first information (i.e., the carrier-related information used in cross-carrier scheduling) can be configured by the network device or determined by the first terminal itself. For example, in mode 1, the network device notifies the first terminal of the carrier-related information used in cross-carrier scheduling; in mode 2, the first terminal itself determines the carrier-related information used in cross-carrier scheduling.

[0377] In an embodiment of the present application, a first terminal sends a first message to a second terminal, and the first message indicates the carrier information used for cross-carrier scheduling. The carrier information for transmitting the PSCCH and the carrier information for transmitting the PSSCH can be directly indicated, or the mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH can be indicated. The second terminal can receive the corresponding data on the corresponding carrier according to the first message, thereby realizing cross-carrier scheduling.

[0378] Optionally, the carrier information includes at least one of the following:

[0379] (1) Carrier index: The first terminal may indicate to the second terminal the carrier index for transmitting the PSCCH (e.g., carrier 1), the carrier index for transmitting the PSSCH (e.g., carrier 2), and the mapping relationship between the carrier index for transmitting the PSCCH and the carrier index for transmitting the PSSCH (e.g., when the PSCCH corresponds to carrier 1, the PSSCH corresponds to carrier 2; when the PSCCH corresponds to carrier 3, the PSSCH corresponds to carrier 4).

[0380] (2) Bandwidth part BWP: The first terminal may indicate to the second terminal the BWP information for transmitting the PSCCH, the BWP information for transmitting the PSSCH, and the mapping relationship between the BWP information for transmitting the PSCCH and the BWP information for transmitting the PSSCH.

[0381] (3) BWP index: The first terminal may indicate to the second terminal the BWP index for transmitting the PSCCH, the BWP index for transmitting the PSSCH, and the mapping relationship between the BWP index for transmitting the PSCCH and the BWP index for transmitting the PSSCH.

[0382] (4) Carrier frequency information: The first terminal may indicate to the second terminal the carrier frequency for transmitting the PSCCH, the carrier frequency for transmitting the PSSCH, and the mapping relationship between the carrier frequency for transmitting the PSCCH and the carrier frequency for transmitting the PSSCH.

[0383] As an optional embodiment, the method further includes:

[0384] Sending second information to the network device, where the second information includes at least one of the following information:

[0385] 1) Target Layer 2 Identity (L2 ID) of the direct communication interface;

[0386] 2) PSCCH carrier set; the number of carriers included in this set is greater than or equal to 1.

[0387] 3) BWP set of PSCCH; the number of BWPs contained in this set is greater than or equal to 1.

[0388] 4) PSCCH frequency set; the number of frequencies included in this set is greater than or equal to 1.

[0389] 5) PSSCH carrier set; the number of carriers included in this set is greater than or equal to 1.

[0390] 6) BWP set of PSSCH; the number of BWPs contained in this set is greater than or equal to 1.

[0391] 7) PSSCH frequency set; the number of frequencies contained in this set is greater than or equal to 1.

[0392] In this embodiment, the second information can assist the network device in configuring carrier information for the terminal. For example: the network device selects a carrier for transmitting PSCCH in cross-carrier scheduling from the carrier set of PSCCH, and selects a carrier for transmitting PSSCH in cross-carrier scheduling from the carrier set of PSSCH. Alternatively, the network device selects a BWP for transmitting PSCCH in cross-carrier scheduling from the BWP set of PSCCH, and selects a BWP for transmitting PSSCH in cross-carrier scheduling from the BWP set of PSSCH. Alternatively, the network device selects a frequency for transmitting PSCCH in cross-carrier scheduling from the frequency set of PSCCH, and selects a frequency for transmitting PSSCH in cross-carrier scheduling from the BWP set of PSSCH.

[0393] As an optional embodiment, the method further includes:

[0394] Sending third information to the network device, where the third information includes at least one of the following information:

[0395] 1) Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0396] 2) carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0397] 3) PSCCH carrier information at the terminal level;

[0398] 4) Carrier information of PSSCH at terminal level.

[0399] In this embodiment, the carrier information may be an index of a carrier, or may be one or more of a BWP, an index of a BWP, a frequency, etc. The third information is the carrier information of the cross-carrier scheduling suggested by the first terminal. The first terminal sends the third information to the network device. When the network device configures the carrier information of the cross-carrier scheduling for the terminal, it may refer to the suggestion of the first terminal.

[0400] Optionally, the method further includes:

[0401] receiving fifth information sent by the second terminal;

[0402] determining the third information according to the fifth information;

[0403] The fifth information includes at least one of the following:

[0404] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0405] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0406] The carrier information of PSCCH at the terminal level;

[0407] Carrier information of PSSCH at terminal level.

[0408] In this embodiment, the third information sent by the first terminal is determined based on the fifth information sent by the second terminal. The second terminal sends recommended carrier information to the first terminal, and the first terminal determines the third information based on the carrier information recommended by the second terminal.

[0409] As an optional embodiment, the method further includes:

[0410] Sending fourth information to the network device, where the fourth information includes at least one of the following:

[0411] 1) Channel busy rate CBR corresponding to the target carrier; the target carrier is a carrier supported by the first terminal based on the layer 2 identifier. The first terminal reports the CBR corresponding to the carrier of the relevant carrier set (or a specific resource pool in the carrier) to the network device based on the carrier set that can be supported by the L2 ID.

[0412] 2) The value of the reference signal received power RSRP of the direct communication link. The first terminal can report the RSRP result of the SL link carrier to the network device based on the feedback of the second terminal, on a periodic basis or on an event basis. For example: when the RSRP measurement result is lower than a threshold value or higher than a threshold value, the RSRP result of the SL link carrier is reported to the network device.

[0413] 3) Information about the carrier corresponding to the direct communication link: The first terminal may report the carrier information of the SL link to the network device based on the feedback from the second terminal, periodically or based on an event.

[0414] 4) Information of the primary carrier recommended by the first terminal: The first terminal may report information of the recommended primary carrier to the network device.

[0415] 5) Information about the secondary carrier suggested by the first terminal: The first terminal may report information about the secondary carrier suggested to the network device.

[0416] 6) Information about the primary carrier suggested by the second terminal. The first terminal may forward the information about the primary carrier suggested by the second terminal.

[0417] 7) Information about the secondary carrier suggested by the second terminal. The first terminal may forward the information about the secondary carrier suggested by the second terminal.

[0418] In this embodiment, the fourth information can be used to assist the network device in configuring the carrier information of cross-carrier scheduling for the terminal. In order to enable the network device to effectively determine the carrier used when the first terminal sends data to the second terminal, the first terminal can report the fourth information to the network device as auxiliary information. The network device can configure the scheduling resources of SL CA in mode 1 (mode1) based on the above auxiliary information, and the first terminal further determines the L2 ID based on the scheduling information of the network device to grant the relevant resources to SL.

[0419] As an optional embodiment, the method further includes:

[0420] Receive configuration information sent by a network device, where the configuration information includes at least one of the following:

[0421] PSCCH carrier information;

[0422] PSSCH carrier information;

[0423] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0424] In this embodiment, the first information (i.e., the carrier-related information used in cross-carrier scheduling) is configured by the network device. The configuration information may be configured by the network device based on at least one of the second information, the third information, and the fourth information. The network device configures the carrier information of cross-carrier scheduling for the terminal, and the first terminal sends the first information to the second terminal based on the configuration of the network device, so that the second terminal can receive data on the correct carrier.

[0425] Optionally, the method further includes:

[0426] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0427] or,

[0428] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0429] In this embodiment, the first terminal can determine another carrier information based on the mapping relationship and one of the carrier information, for example: the carrier transmitting PSCCH is carrier 1. In the mapping relationship, when the carrier transmitting PSCCH is carrier 1, the corresponding carrier transmitting PSSCH is carrier 3, then it can be determined that the carrier of PSSCH is carrier 3.

[0430] Optionally, the receiving configuration information sent by the network device includes at least one of the following:

[0431] (1) receiving direct link control information SCI sent by the network device through a physical downlink shared channel PDSCH, where the SCI carries the configuration information;

[0432] In this embodiment, the network device sends a PDSCH to the first terminal, the PDSCH carries the SCI, and the SCI carries the configuration information.

[0433] (2) receiving downlink control information DCI sent by the network device, where the DCI is DCI corresponding to the direct link and carries the configuration information.

[0434] In this embodiment, the network device sends a DCI corresponding to the SL to the first terminal, and the DCI carries the configuration information.

[0435] (3) Receiving a first signaling sent by the network device through a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: a radio resource control RRC signaling and / or a media access control control unit MAC CE.

[0436] In this embodiment, the network device sends RRC signaling and / or MAC CE corresponding to SL to the first terminal through the Uu interface, and the configuration information is carried in the RRC signaling and / or MAC CE. Optionally, the RRC signaling and / or MAC CE may be SL dedicated signaling.

[0437] As an optional embodiment, the sending the first information to the second terminal includes at least one of the following:

[0438] (1) sending an SCI to the second terminal, where the SCI carries the first information;

[0439] (2) Sending a second signaling to the second terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0440] In this embodiment, the first terminal may send an SCI to the second terminal, and carry the first information in the SCI; or the first information may be indicated by means of PC5-RRC signaling or MAC CE.

[0441] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0442] or,

[0443] The second signaling carries the carrier information of the PSSCH, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0444] In this embodiment, when the first terminal sends SCI to the second terminal, the SCI may carry the carrier information of the PSSCH and / or the scheduling information of the carrier corresponding to the PSSCH. For example, the carrier information of the PSSCH and the scheduling information on the carrier may be sent through the SCI; or, only the scheduling information on the PSSCH carrier may be sent in the SCI, the carrier information of the PSSCH may be sent through the second signaling, or the carrier information of the PSSCH may be acquired by the second terminal based on historical scheduling information.

[0445] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other of the carrier information of PSSCH and PSCCH is configured to the second terminal by the network device, or is configured to the second terminal separately by the first terminal, or is obtained by the second terminal by monitoring on one or more carriers.

[0446] As an optional embodiment, the method further includes: determining to perform cross-carrier scheduling when the first condition is met;

[0447] The sending the first information to the second terminal includes: sending the first information to the second terminal when it is determined to perform cross-carrier scheduling.

[0448] Optionally, the first condition includes at least one of the following:

[0449] 1) The RSRP value of the carrier or link where the SCI is located is less than the first value;

[0450] 2) RSRP values ​​of other carriers or links except the carrier or link where the SCI is located are greater than the second value;

[0451] 3) The channel busy rate CBR of the carrier where the SCI is located is greater than the third value;

[0452] 4) The CBR values ​​of other carriers except the carrier where the SCI is located are less than the fourth value;

[0453] 5) The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the channel occupancy rate CO is greater than the fifth value;

[0454] 6) The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the received signal strength indication RSSI value is greater than the sixth value.

[0455] In this embodiment, the first terminal may decide to perform cross-carrier scheduling in the SL link based on one or more of the above conditions. The values ​​of the first value to the sixth value can be set based on the data transmission requirements and are not limited here. When the triggering conditions for cross-carrier scheduling are met, it is determined to perform cross-carrier scheduling, and the carrier information of the cross-carrier scheduling is indicated to the second terminal.

[0456] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH. In this embodiment, in order to ensure that the second terminal can accurately receive data, when performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0457] As an optional embodiment, the method further includes:

[0458] Send a frequency information list to the network device, where the frequency information list is a frequency information list used for layer 2 identification or a frequency information list for a direct communication link at the terminal level; obtain the frequency information sent by the network device; wherein the frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0459] In this embodiment, the first terminal may provide the network device with a frequency information list used by the L2 ID or a frequency information list of the terminal level before the mode1 mode starts; the network device configures the frequency information that can be used by the first terminal based on the frequency information list. The frequency information is applicable to all services of the first terminal. Among them, the network device may carry the frequency information when configuring the configuration information for the terminal, for example: sending SCI to the terminal via PDSCH, carrying the configuration information and the frequency information in the SCI. The network device may also send the frequency information to the first terminal via separate signaling (such as RRC signaling and / or MAC CE), which can reduce signaling overhead.

[0460] It should be noted that the frequency information may be frequency list information, which includes multiple frequency information, and the terminal may select the actually used transmission frequency when performing cross-carrier scheduling.

[0461] Optionally, the method further comprises at least one of the following:

[0462] Sending an SCI to the second terminal, where the SCI carries the frequency information;

[0463] Send RRC signaling and / or MAC CE to the second terminal, where the RRC signaling and / or MAC CE carries the frequency information.

[0464] In this embodiment, after receiving the frequency information configured by the network device, the first terminal may send the frequency information to the second terminal, for example, by sending the frequency information to the second terminal through RRC signaling and / or MAC CE.

[0465] It should be noted that the carrier information used for PSCCH in the present application can be associated with the L2 ID of the SL, that is, the carrier information of PSCCH can be the carrier information of the PSCCH of a specific SL L2 ID.

[0466] The carrier information used for PSSCH in the present application may be associated with the L2 ID of the SL, that is, the carrier information of PSSCH may be the carrier information of the PSSCH of a specific SL L2 ID.

[0467] The mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH of the present application can be associated with the L2 ID of the SL, that is, the mapping relationship can be the mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH of a specific SL L2 ID.

[0468] The carrier information of PSCCH used in the present application may be associated with the quality of service flow (Quality of Service flow) of the SL, that is, the carrier information of PSCCH may be the carrier information of PSCCH of the quality of service flow (Quality of Service flow) of a specific SL.

[0469] The carrier information of PSSCH used in the present application may be associated with the quality of service flow (Quality of Service flow) of SL, that is, the carrier information of PSSCH may be the carrier information of PSSCH of the quality of service flow (Quality of Service flow) of a specific SL.

[0470] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH in the present application can be associated with the service quality flow (Quality of Service flow) of SL, that is: the mapping relationship can be the mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH of a specific service quality flow of SL.

[0471] The following example illustrates the implementation process of the cross-carrier scheduling method.

[0472] like Figure 3As shown, taking the first terminal as a transmitting terminal (Tx UE), the second terminal as a receiving terminal (RxUE), and the network device as a base station (or a parent node) as an example, the method includes:

[0473] Step 31: The Tx UE sends a frequency information list to the base station. The frequency information list may be a frequency information list of an L2 ID or a UE level.

[0474] Optionally, the frequency information list reported by the Tx UE may be the frequency of the PSSCH or PSCCH related to the recommended L2 ID, or the frequency of the PSSCH or PSCCH at the UE level. The above frequency information may be determined based on the frequency information recommended by the Rx UE.

[0475] Step 32a: The base station feeds back a UE-level frequency information list for mode1 to the Tx UE.

[0476] Optionally, the base station may use an RRC message or a MAC CE to notify the Tx UE of the frequency information on the SL, for example, adding, updating or releasing the frequency information list reported by the Tx UE.

[0477] Step 32b: The Tx UE sends a UE-level frequency information list for SL scheduling to the Rx UE.

[0478] Step 33: The Tx UE sends auxiliary information for cross-carrier scheduling to the base station. The auxiliary information may be one or more of the second information, the third information, and the fourth information, which will not be described in detail here.

[0479] Step 34: The base station determines carrier information and resource information on the carrier used for cross-carrier scheduling based on the auxiliary information.

[0480] The Tx UE reports auxiliary information, and the base station gives the scheduling resources of SL CA in mode 1. The Tx UE further determines the L2 ID and SL grant related resources based on the scheduling information of the base station.

[0481] Step 35: The base station sends the carrier information and resource information to the Tx UE, which may include one or more of the following: carrier information of the PSCCH; carrier information of the PSSCH; and a mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH.

[0482] The carrier information and resource information may be sent in the same signaling or in different signaling. The base station may send the carrier information and resource information on the carrier to the Tx UE through SCI, DCI, RRC signaling, MAC CE, etc. For example: configure the carrier information of PSCCH and the carrier information of PSSCH through RRC+MAC CE; directly send the wireless resource information on the corresponding carrier through DCI. Alternatively, carry the carrier information of PSCCH, the carrier information of PSSCH and the wireless resource information on the corresponding carrier through DCI.

[0483] Step 36: The Tx UE sends the carrier information and resource information to the Rx UE.

[0484] The carrier information and resource information may be sent in the same signaling or in different signaling. For example, the Tx UE may send the carrier information and resource information on the carrier to the Rx UE via the SCI, and the Rx UE blindly receives and obtains the SCI information. Alternatively, the Tx UE sends the resource information to the Rx UE via the SCI, and sends the carrier information to the Rx UE via the RRC signaling or the MAC CE. In this case, the SCI does not carry the carrier information, which can reduce the signaling overhead.

[0485] The above embodiment may be cross-carrier scheduling in mode 1, where the base station configures the first terminal to perform cross-carrier scheduling and configures relevant information of the cross-carrier scheduling.

[0486] As another optional embodiment, the implementation process of the Tx UE determining to perform cross-carrier scheduling is as follows: Figure 4 As shown, including:

[0487] Step 41: The Tx UE decides to perform cross-carrier scheduling of the SL link. The specific basis conditions may include one or more of the following:

[0488] The RSRP value of the carrier or link where the SCI is located is less than the first value;

[0489] The RSRP values ​​of other carriers or links except the carrier or link where the SCI is located are greater than the second value;

[0490] The channel busy rate CBR of the carrier where the SCI is located is greater than the third value;

[0491] The CBR values ​​of other carriers except the carrier where the SCI is located are less than the fourth value;

[0492] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the channel occupancy rate CO is greater than the fifth value;

[0493] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the received signal strength indication RSSI value is greater than the sixth value.

[0494] It should be noted that, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0495] It should be noted that the Tx UE may determine the cross-carrier scheduled resources based on the cross-carrier scheduling information suggested by the Rx UE.

[0496] Step 42: In UC mode, the Tx UE sends the frequency information list of SL CA, the carrier information based on the L2 ID, and the radio resource information on the corresponding carrier to the Rx UE.

[0497] For example, the frequency information of the SCI, the frequency information of the PSSCH, and the information of the radio resources of the PSSCH at the corresponding frequency are sent to the Rx UE for cross-carrier scheduling.

[0498] Step 43: After obtaining the frequency information list, carrier information and radio resource information on the corresponding carrier sent by the Tx UE, the Rx UE decodes the PSSCH channel to obtain the transport block (TB) information.

[0499] The above embodiment may be cross-carrier scheduling in mode 2, where the first terminal decides to perform cross-carrier scheduling and selects relevant information of the cross-carrier scheduling.

[0500] The embodiments of the present application implement the cross-carrier scheduling function of SL CA in mode 1 and mode 2, and reduce the physical layer signaling overhead of the SL interface as much as possible.

[0501] In an embodiment of the present application, a first terminal sends a first message to a second terminal, and the first message indicates the carrier information used for cross-carrier scheduling. The carrier information for transmitting the PSCCH and the carrier information for transmitting the PSSCH can be directly indicated, or the mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH can be indicated. The second terminal can receive the corresponding data on the corresponding carrier according to the first message, thereby realizing cross-carrier scheduling.

[0502] like Figure 5 As shown, the embodiment of the present application also provides a method for cross-carrier scheduling, which is applied to a second terminal, including:

[0503] Step 501: A second terminal receives first information sent by a first terminal, where the first information includes at least one of the following:

[0504] PSCCH carrier information;

[0505] PSSCH carrier information;

[0506] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0507] In this embodiment, the second terminal is a peer terminal that directly communicates with the first terminal. The first terminal may be a transmitting terminal for direct communication, and the second terminal may be a receiving terminal for direct communication. The first terminal sends a first message to the second terminal, and indicates the carrier-related information used for cross-carrier scheduling through the first message, for example: directly indicating the carrier information of the PSCCH, indicating the carrier information of the PSSCH, and also indicating the mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH. The mapping relationship may be the corresponding relationship between the carrier information of the PSCCH and the carrier information of the PSSCH, for example: when the carrier for transmitting the PSCCH is carrier 1, the corresponding carrier for transmitting the PSSCH is carrier 2; when the carrier for transmitting the PSCCH is carrier 3, the corresponding carrier for transmitting the PSSCH is carrier 4.

[0508] In an embodiment of the present application, the second terminal receives the first information sent by the first terminal, and can obtain the carrier information used for cross-carrier scheduling according to the first information. Among them, the first information can directly indicate the carrier information for transmitting the PSCCH and the carrier information for transmitting the PSSCH, and can also indicate the mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH. The second terminal can receive the corresponding data on the corresponding carrier according to the first information to realize cross-carrier scheduling.

[0509] (1) Carrier index: The first terminal may indicate to the second terminal the carrier index for transmitting the PSCCH (e.g., carrier 1), the carrier index for transmitting the PSSCH (e.g., carrier 2), and the mapping relationship between the carrier index for transmitting the PSCCH and the carrier index for transmitting the PSSCH (e.g., when the PSCCH corresponds to carrier 1, the PSSCH corresponds to carrier 2; when the PSCCH corresponds to carrier 3, the PSSCH corresponds to carrier 4).

[0510] (2) Bandwidth part BWP: The first terminal may indicate to the second terminal the BWP information for transmitting the PSCCH, the BWP information for transmitting the PSSCH, and the mapping relationship between the BWP information for transmitting the PSCCH and the BWP information for transmitting the PSSCH.

[0511] (3) BWP index: The first terminal may indicate to the second terminal the BWP index for transmitting the PSCCH, the BWP index for transmitting the PSSCH, and the mapping relationship between the BWP index for transmitting the PSCCH and the BWP index for transmitting the PSSCH.

[0512] (4) Carrier frequency information: The first terminal may indicate to the second terminal the carrier frequency for transmitting the PSCCH, the carrier frequency for transmitting the PSSCH, and the mapping relationship between the carrier frequency for transmitting the PSCCH and the carrier frequency for transmitting the PSSCH.

[0513] Optionally, the receiving the first information sent by the first terminal includes at least one of the following:

[0514] receiving an SCI sent by the first terminal, where the SCI carries the first information;

[0515] Receive second signaling sent by the first terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0516] In this embodiment, the first terminal may send an SCI to the second terminal, and carry the first information in the SCI; or the first information may be indicated by means of PC5-RRC signaling or MAC CE.

[0517] The SCI carries the carrier information of the PSSCH and the scheduling information of the carrier corresponding to the PSSCH;

[0518] or,

[0519] The second signaling carries carrier information of the PSSCH, and the SCI carries scheduling information of the carrier corresponding to the PSSCH;

[0520] or,

[0521] The second terminal obtains the carrier information of the PSSCH based on the historical scheduling information, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0522] In this embodiment, when the first terminal sends SCI to the second terminal, the SCI may carry the carrier information of the PSSCH and / or the scheduling information of the carrier corresponding to the PSSCH. For example, the carrier information of the PSSCH and the scheduling information on the carrier may be sent through the SCI; or, only the scheduling information on the PSSCH carrier may be sent in the SCI, the carrier information of the PSSCH may be sent through the second signaling, or the carrier information of the PSSCH may be acquired by the second terminal based on historical scheduling information.

[0523] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other one of the carrier information of PSSCH and the carrier information of PSCCH is configured by the network device or configured by the first terminal alone, or obtained by monitoring on one or more carriers.

[0524] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0525] As an optional embodiment, the method further includes:

[0526] Sending fifth information to the first terminal;

[0527] The fifth information includes at least one of the following:

[0528] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0529] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0530] The carrier information of PSCCH at the terminal level;

[0531] Carrier information of PSSCH at terminal level.

[0532] In this embodiment, the second terminal sends the recommended carrier information to the first terminal, and the first terminal determines the third information based on the carrier information recommended by the second terminal. The third information is the carrier information of the cross-carrier scheduling recommended by the first terminal. The first terminal sends the third information to the network device. When the network device configures the carrier information of the cross-carrier scheduling for the terminal, it can refer to the suggestion of the first terminal.

[0533] As an optional embodiment, the method further includes at least one of the following:

[0534] Receiving an SCI sent by the first terminal, where the SCI carries frequency information;

[0535] Receive RRC signaling and / or MAC CE sent by the first terminal, where the RRC signaling and / or MAC CE carries frequency information.

[0536] In this embodiment, the first terminal may provide the network device with a frequency information list used by the L2 ID or a frequency information list of the terminal level before the mode1 mode starts; the network device configures the frequency information that can be used by the first terminal based on the frequency information list. The frequency information is applicable to all services of the first terminal. Among them, the network device may carry the frequency information when configuring the configuration information for the terminal, for example: sending SCI to the terminal via PDSCH, carrying the configuration information and the frequency information in the SCI. The network device may also send the frequency information to the first terminal via separate signaling (such as RRC signaling and / or MAC CE), which can reduce signaling overhead. After the first terminal receives the frequency information configured by the network device, it may send the frequency information to the second terminal. For example: sending the frequency information to the second terminal via RRC signaling and / or MAC CE.

[0537] Optionally, the method further includes:

[0538] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0539] or,

[0540] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0541] In this embodiment, the second terminal may determine another carrier information based on the mapping relationship and one of the carrier information, for example, the carrier transmitting the PSCCH is carrier 1, and in the mapping relationship, when the carrier transmitting the PSCCH is carrier 1, the corresponding carrier transmitting the PSSCH is carrier 3, and then it may be determined that the carrier of the PSSCH is carrier 3. Thus, data can be received on the corresponding carrier.

[0542] In an embodiment of the present application, the second terminal receives the first information sent by the first terminal, and can obtain the carrier information used for cross-carrier scheduling according to the first information. Among them, the first information can directly indicate the carrier information for transmitting the PSCCH and the carrier information for transmitting the PSSCH, and can also indicate the mapping relationship between the carrier information of the PSCCH and the carrier information of the PSSCH. The second terminal can receive the corresponding data on the corresponding carrier according to the first information to realize cross-carrier scheduling.

[0543] like Figure 6 As shown, the embodiment of the present application also provides a method for cross-carrier scheduling, which is applied to a network device, including:

[0544] Step 601: The network device sends configuration information to the first terminal, where the configuration information includes at least one of the following:

[0545] PSCCH carrier information;

[0546] PSSCH carrier information;

[0547] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0548] In this embodiment, the network device configures carrier information of cross-carrier scheduling for the terminal, and the first terminal sends the first information to the second terminal based on the configuration of the network device, so that the second terminal can receive data on the correct carrier.

[0549] Optionally, the carrier information includes at least one of the following:

[0550] The index of the carrier;

[0551] BWP;

[0552] Index of BWP;

[0553] Carrier frequency information.

[0554] Optionally, the method further includes:

[0555] Receive second information sent by the first terminal, where the second information includes at least one of the following information:

[0556] Target layer 2 identification of the direct communication interface;

[0557] The carrier set of PSCCH;

[0558] BWP set of PSCCH;

[0559] Frequency set of SCCH;

[0560] The carrier set of PSSCH;

[0561] BWP set of PSSCH;

[0562] The frequency set of PSSCH.

[0563] In this embodiment, the second information can assist the network device in configuring carrier information for the terminal. For example: the network device selects a carrier for transmitting PSCCH in cross-carrier scheduling from the carrier set of PSCCH, and selects a carrier for transmitting PSSCH in cross-carrier scheduling from the carrier set of PSSCH. Alternatively, the network device selects a BWP for transmitting PSCCH in cross-carrier scheduling from the BWP set of PSCCH, and selects a BWP for transmitting PSSCH in cross-carrier scheduling from the BWP set of PSSCH. Alternatively, the network device selects a frequency for transmitting PSCCH in cross-carrier scheduling from the frequency set of PSCCH, and selects a frequency for transmitting PSSCH in cross-carrier scheduling from the BWP set of PSSCH.

[0564] Optionally, the method further includes:

[0565] Receive third information sent by the first terminal, where the third information includes at least one of the following information:

[0566] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0567] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0568] The carrier information of PSCCH at the terminal level;

[0569] Carrier information of PSSCH at terminal level.

[0570] In this embodiment, the carrier information may be an index of a carrier, or may be one or more of a BWP, an index of a BWP, a frequency, etc. The third information is the carrier information of the cross-carrier scheduling suggested by the first terminal. The first terminal sends the third information to the network device. When the network device configures the carrier information of the cross-carrier scheduling for the terminal, it may refer to the suggestion of the first terminal.

[0571] Optionally, the method further includes:

[0572] receiving fourth information sent by the first terminal, where the fourth information includes at least one of the following:

[0573] A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier;

[0574] The value of the reference signal received power RSRP of the direct communication link;

[0575] Information of the carrier corresponding to the direct communication link;

[0576] Information of a primary carrier suggested by the first terminal;

[0577] Information of a secondary carrier suggested by the first terminal;

[0578] Information of a primary carrier suggested by the second terminal;

[0579] Information about the secondary carrier suggested by the second terminal.

[0580] In this embodiment, the fourth information can be used to assist the network device in configuring the carrier information of cross-carrier scheduling for the terminal. In order to enable the network device to effectively determine the carrier used when the first terminal sends data to the second terminal, the first terminal can report the fourth information to the network device as auxiliary information. The network device can configure the scheduling resources of SL CA in mode 1 (mode1) based on the above auxiliary information, and the first terminal further determines the L2 ID based on the scheduling information of the network device to grant the relevant resources to SL.

[0581] Optionally, the method further includes:

[0582] The configuration information is determined according to at least one of the second information, the third information, and the fourth information.

[0583] In this embodiment, the configuration information may be configured by the network device based on at least one of the second information, the third information, and the fourth information. The network device configures carrier information for cross-carrier scheduling for the terminal, and the first terminal sends the first information to the second terminal based on the configuration of the network device, so that the second terminal can receive data on the correct carrier.

[0584] As an optional embodiment, the sending the configuration information to the first terminal includes at least one of the following:

[0585] (1) Sending SCI to the first terminal through PDSCH, wherein the SCI carries the configuration information; In this embodiment, the network device sends PDSCH to the first terminal, wherein the PDSCH carries SCI, wherein the SCI carries the configuration information.

[0586] (2) Sending DCI to the first terminal, where the DCI is DCI corresponding to the direct link and carries the configuration information; in this embodiment, the network device sends DCI corresponding to the SL to the first terminal, where the DCI carries the configuration information.

[0587] (3) Sending a first signaling to the first terminal through a Uu interface, where the first signaling carries the configuration information; the first signaling includes: RRC signaling and / or MAC CE.

[0588] In this embodiment, the network device sends RRC signaling and / or MAC CE corresponding to SL to the first terminal through the Uu interface, and the configuration information is carried in the RRC signaling and / or MAC CE. Optionally, the RRC signaling and / or MAC CE may be SL dedicated signaling.

[0589] Optionally, the method further includes: configuring carrier information of the PSCCH or carrier information of the PSSCH for the second terminal. In this embodiment, the network device may also configure cross-carrier scheduling related information for the second terminal.

[0590] Optionally, the method further includes:

[0591] receiving a frequency information list sent by the first terminal, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0592] Sending frequency information to the first terminal;

[0593] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0594] In this embodiment, the first terminal may provide the network device with a frequency information list used by the L2 ID or a frequency information list of the terminal level before the mode1 mode starts; the network device configures the frequency information that can be used by the first terminal based on the frequency information list. The frequency information is applicable to all services of the first terminal. Among them, the network device may carry the frequency information when configuring the configuration information for the terminal, for example: sending SCI to the terminal via PDSCH, carrying the configuration information and the frequency information in the SCI. The network device may also send the frequency information to the first terminal via separate signaling (such as RRC signaling and / or MAC CE), which can reduce signaling overhead.

[0595] It should be noted that the frequency information may be frequency list information, which includes multiple frequency information, and the terminal may select the actually used transmission frequency when performing cross-carrier scheduling.

[0596] In an embodiment of the present application, a network device configures carrier information for cross-carrier scheduling for a terminal, so that a first terminal sends the first information to a second terminal based on the configuration of the network device, and the second terminal can receive data on the correct carrier.

[0597] The above embodiments introduce the cross-carrier scheduling method of the present application. The following embodiments will further illustrate the corresponding device in conjunction with the accompanying drawings.

[0598] Specifically, Figure 7 As shown, an embodiment of the present application provides a cross-carrier scheduling apparatus 700, which is applied to a first terminal, including:

[0599] The first sending unit 710 is configured to send first information to the second terminal, where the first information includes at least one of the following:

[0600] Carrier information of the physical direct link control channel PSCCH;

[0601] Carrier information of the physical direct link shared channel PSSCH;

[0602] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0603] Optionally, the carrier information includes at least one of the following:

[0604] The index of the carrier;

[0605] Bandwidth part BWP;

[0606] Index of BWP;

[0607] Carrier frequency information.

[0608] Optionally, the device further comprises:

[0609] The third sending unit is configured to send second information to the network device, where the second information includes at least one of the following information:

[0610] Target layer 2 identification of the direct communication interface;

[0611] The carrier set of PSCCH;

[0612] BWP set of PSCCH;

[0613] Frequency set of PSCCH;

[0614] The carrier set of PSSCH;

[0615] BWP set of PSSCH;

[0616] The frequency set of PSSCH.

[0617] Optionally, the device further comprises:

[0618] The fourth sending unit is configured to send third information to the network device, where the third information includes at least one of the following information:

[0619] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0620] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0621] The carrier information of PSCCH at the terminal level;

[0622] Carrier information of PSSCH at terminal level.

[0623] Optionally, the device further comprises:

[0624] A fifth sending unit is configured to send fourth information to the network device, where the fourth information includes at least one of the following:

[0625] A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier;

[0626] The value of the reference signal received power RSRP of the direct communication link;

[0627] Information of the carrier corresponding to the direct communication link;

[0628] Information of a primary carrier suggested by the first terminal;

[0629] Information of a secondary carrier suggested by the first terminal;

[0630] Information of a primary carrier suggested by the second terminal;

[0631] Information about the secondary carrier suggested by the second terminal.

[0632] Optionally, the device further comprises:

[0633] The second receiving unit is configured to receive configuration information sent by the network device, where the configuration information includes at least one of the following:

[0634] PSCCH carrier information;

[0635] PSSCH carrier information;

[0636] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0637] Optionally, the second receiving unit is specifically configured to perform at least one of the following:

[0638] Receiving direct link control information SCI sent by the network device through a physical downlink shared channel PDSCH, wherein the SCI carries the configuration information;

[0639] receiving downlink control information DCI sent by the network device, where the DCI is DCI corresponding to a direct link and the DCI carries the configuration information;

[0640] Receive a first signaling sent by the network device through a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: a radio resource control RRC signaling and / or a media access control control unit MAC CE.

[0641] Optionally, the first sending unit is specifically configured to perform at least one of the following:

[0642] Sending an SCI to the second terminal, where the SCI carries the first information;

[0643] Send a second signaling to the second terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0644] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0645] or,

[0646] The second signaling carries the carrier information of the PSSCH, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0647] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other of the carrier information of PSSCH and PSCCH is configured to the second terminal by the network device, or is configured to the second terminal separately by the first terminal, or is obtained by the second terminal by monitoring on one or more carriers.

[0648] Optionally, the device further comprises:

[0649] A first determining unit, configured to determine to perform cross-carrier scheduling when a first condition is met;

[0650] The sending the first information to the second terminal includes:

[0651] In case it is determined to perform cross-carrier scheduling, first information is sent to the second terminal.

[0652] Optionally, the first condition includes at least one of the following:

[0653] The RSRP value of the carrier or link where the SCI is located is less than the first value;

[0654] The RSRP values ​​of other carriers or links except the carrier or link where the SCI is located are greater than the second value;

[0655] The channel busy rate CBR of the carrier where the SCI is located is greater than the third value;

[0656] The CBR values ​​of other carriers except the carrier where the SCI is located are less than the fourth value;

[0657] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the channel occupancy rate CO is greater than the fifth value;

[0658] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the received signal strength indication RSSI value is greater than the sixth value.

[0659] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0660] Optionally, the device further comprises:

[0661] A third receiving unit, configured to receive fifth information sent by the second terminal;

[0662] determining the third information according to the fifth information;

[0663] The fifth information includes at least one of the following:

[0664] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0665] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0666] The carrier information of PSCCH at the terminal level;

[0667] Carrier information of PSSCH at terminal level.

[0668] Optionally, the device further comprises:

[0669] a fifth sending unit, configured to send a frequency information list to the network device, wherein the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0670] An acquiring unit, configured to acquire frequency information sent by the network device;

[0671] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0672] Optionally, the apparatus further includes a seventh sending unit, configured to perform at least one of the following:

[0673] Sending an SCI to the second terminal, where the SCI carries the frequency information;

[0674] Send RRC signaling and / or MAC CE to the second terminal, where the RRC signaling and / or MAC CE carries the frequency information.

[0675] Optionally, the device further includes: a second determining unit,

[0676] The second determining unit is used for:

[0677] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0678] or,

[0679] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0680] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment applied to the first terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0681] Specifically, Figure 8 As shown, an embodiment of the present application provides a cross-carrier scheduling device 800, which is applied to a second terminal, including:

[0682] The first receiving unit 810 is configured to receive first information sent by a first terminal, where the first information includes at least one of the following:

[0683] PSCCH carrier information;

[0684] PSSCH carrier information;

[0685] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0686] Optionally, the carrier information includes at least one of the following:

[0687] The index of the carrier;

[0688] BWP;

[0689] Index of BWP;

[0690] Carrier frequency information.

[0691] Optionally, the first receiving unit is specifically configured to perform at least one of the following:

[0692] receiving an SCI sent by the first terminal, where the SCI carries the first information;

[0693] Receive second signaling sent by the first terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0694] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0695] or,

[0696] The second signaling carries carrier information of the PSSCH, and the SCI carries scheduling information of the carrier corresponding to the PSSCH;

[0697] or,

[0698] The second terminal obtains the carrier information of the PSSCH based on the historical scheduling information, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0699] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other one of the carrier information of PSSCH and the carrier information of PSCCH is configured by the network device or configured by the first terminal alone, or obtained by monitoring on one or more carriers.

[0700] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0701] Optionally, the device further comprises:

[0702] an eighth sending unit, configured to send fifth information to the first terminal;

[0703] The fifth information includes at least one of the following:

[0704] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0705] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0706] The carrier information of PSCCH at the terminal level;

[0707] Carrier information of PSSCH at terminal level.

[0708] Optionally, the device further includes: a fourth receiving unit, configured to perform at least one of the following:

[0709] Receiving an SCI sent by the first terminal, where the SCI carries frequency information;

[0710] Receive RRC signaling and / or MAC CE sent by the first terminal, where the RRC signaling and / or MAC CE carries frequency information.

[0711] Optionally, the device further includes: a third determining unit,

[0712] The third determining unit is used for:

[0713] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0714] or,

[0715] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0716] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment applied to the second terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0717] Specifically, Fig. 9 As shown, an embodiment of the present application provides a cross-carrier scheduling apparatus 900, which is applied to a second terminal, including:

[0718] The second sending unit 910 is configured to send configuration information to the first terminal, where the configuration information includes at least one of the following:

[0719] PSCCH carrier information;

[0720] PSSCH carrier information;

[0721] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0722] Optionally, the carrier information includes at least one of the following:

[0723] The index of the carrier;

[0724] BWP;

[0725] Index of BWP;

[0726] Carrier frequency information.

[0727] Optionally, the device further comprises:

[0728] A fifth receiving unit is configured to receive second information sent by the first terminal, where the second information includes at least one of the following information:

[0729] Target layer 2 identification of the direct communication interface;

[0730] The carrier set of PSCCH;

[0731] BWP set of PSCCH;

[0732] Frequency set of SCCH;

[0733] The carrier set of PSSCH;

[0734] BWP set of PSSCH;

[0735] The frequency set of PSSCH.

[0736] Optionally, the device further comprises:

[0737] A sixth receiving unit is configured to receive third information sent by the first terminal, where the third information includes at least one of the following information:

[0738] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0739] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0740] The carrier information of PSCCH at the terminal level;

[0741] Carrier information of PSSCH at terminal level.

[0742] Optionally, the device further comprises:

[0743] A seventh receiving unit is configured to receive fourth information sent by the first terminal, where the fourth information includes at least one of the following:

[0744] A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier;

[0745] The value of the reference signal received power RSRP of the direct communication link;

[0746] Information of the carrier corresponding to the direct communication link;

[0747] Information of a primary carrier suggested by the first terminal;

[0748] Information of a secondary carrier suggested by the first terminal;

[0749] Information of a primary carrier suggested by the second terminal;

[0750] Information about the secondary carrier suggested by the second terminal.

[0751] Optionally, the device further comprises:

[0752] The fourth determining unit is used to determine the configuration information according to at least one of the second information, the third information and the fourth information.

[0753] Optionally, the second sending unit is specifically configured to perform at least one of the following:

[0754] Sending an SCI to the first terminal through a PDSCH, where the SCI carries the configuration information;

[0755] Sending a DCI to the first terminal, where the DCI is the DCI corresponding to the direct link, and the DCI carries the configuration information;

[0756] A first signaling is sent to the first terminal via a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: RRC signaling and / or MAC CE.

[0757] Optionally, the device further comprises:

[0758] A configuration unit is used to configure the carrier information of the PSCCH or the carrier information of the PSSCH for the second terminal.

[0759] Optionally, the device further comprises:

[0760] An eighth receiving unit is configured to receive a frequency information list sent by the first terminal, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0761] a ninth sending unit, configured to send frequency information to the first terminal;

[0762] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0763] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment applied to the network device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0764] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0765] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0766] like Fig.10 As shown, an embodiment of the present application further provides a terminal, which is a first terminal, including: a memory 1020, a transceiver 1000, and a processor 1010; wherein the memory 1020 is used to store a computer program; the transceiver 1000 is used to receive and send data under the control of the processor 1010; the processor 1010 is used to read the computer program in the memory and perform the following operations:

[0767] Sending first information to the second terminal, where the first information includes at least one of the following:

[0768] PSCCH carrier information;

[0769] PSSCH carrier information;

[0770] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0771] Optionally, the carrier information includes at least one of the following:

[0772] The index of the carrier;

[0773] BWP;

[0774] Index of BWP;

[0775] Carrier frequency information.

[0776] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0777] Sending second information to the network device, where the second information includes at least one of the following information:

[0778] Target layer 2 identification of the direct communication interface;

[0779] The carrier set of PSCCH;

[0780] BWP set of PSCCH;

[0781] Frequency set of PSCCH;

[0782] The carrier set of PSSCH;

[0783] BWP set of PSSCH;

[0784] The frequency set of PSSCH.

[0785] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0786] Sending third information to the network device, where the third information includes at least one of the following information:

[0787] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0788] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0789] The carrier information of PSCCH at the terminal level;

[0790] Carrier information of PSSCH at terminal level.

[0791] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0792] Sending fourth information to the network device, where the fourth information includes at least one of the following:

[0793] a CBR corresponding to a target carrier; the target carrier being a carrier supported by the first terminal based on a layer 2 identifier;

[0794] The value of the reference signal received power RSRP of the direct communication link;

[0795] Information of the carrier corresponding to the direct communication link;

[0796] Information of a primary carrier suggested by the first terminal;

[0797] Information of a secondary carrier suggested by the first terminal;

[0798] Information of a primary carrier suggested by the second terminal;

[0799] Information about the secondary carrier suggested by the second terminal.

[0800] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0801] Receive configuration information sent by a network device, where the configuration information includes at least one of the following:

[0802] PSCCH carrier information;

[0803] PSSCH carrier information;

[0804] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0805] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0806] Receiving direct link control information SCI sent by the network device through a physical downlink shared channel PDSCH, wherein the SCI carries the configuration information;

[0807] receiving downlink control information DCI sent by the network device, where the DCI is DCI corresponding to a direct link and the DCI carries the configuration information;

[0808] Receive a first signaling sent by the network device through a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: a radio resource control RRC signaling and / or a media access control control unit MAC CE.

[0809] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0810] Sending an SCI to the second terminal, where the SCI carries the first information;

[0811] Sending a second signaling to the second terminal, where the second signaling carries the first information;

[0812] The second signaling includes RRC signaling and / or MAC CE.

[0813] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0814] or,

[0815] The second signaling carries the carrier information of the PSSCH, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0816] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other of the carrier information of PSSCH and PSCCH is configured to the second terminal by the network device, or is configured to the second terminal separately by the first terminal, or is obtained by the second terminal by monitoring on one or more carriers.

[0817] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0818] Determining to perform cross-carrier scheduling when a first condition is met;

[0819] The sending the first information to the second terminal includes:

[0820] In case it is determined to perform cross-carrier scheduling, first information is sent to the second terminal.

[0821] Optionally, the first condition includes at least one of the following:

[0822] The RSRP value of the carrier or link where the SCI is located is less than the first value;

[0823] The RSRP values ​​of other carriers or links except the carrier or link where the SCI is located are greater than the second value;

[0824] The channel busy rate CBR of the carrier where the SCI is located is greater than the third value;

[0825] The CBR values ​​of other carriers except the carrier where the SCI is located are less than the fourth value;

[0826] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the channel occupancy rate CO is greater than the fifth value;

[0827] The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the received signal strength indication RSSI value is greater than the sixth value.

[0828] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0829] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0830] receiving fifth information sent by the second terminal;

[0831] determining the third information according to the fifth information;

[0832] The fifth information includes at least one of the following:

[0833] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0834] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0835] The carrier information of PSCCH at the terminal level;

[0836] Carrier information of PSSCH at terminal level.

[0837] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0838] Sending a frequency information list to the network device, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0839] Acquire frequency information sent by the network device;

[0840] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0841] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0842] Sending an SCI to the second terminal, where the SCI carries the frequency information;

[0843] Send RRC signaling and / or MAC CE to the second terminal, where the RRC signaling and / or MAC CE carries the frequency information.

[0844] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0845] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0846] or,

[0847] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0848] Among them, Fig.10 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1010 and various circuits of memory represented by memory 1020 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1000 may be a plurality of components, namely, a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1030 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0849] The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1010 when performing operations.

[0850] Optionally, the processor 1010 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0851] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0852] It should be noted here that the above-mentioned terminal provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment applied to the first terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0853] like Fig.11As shown, an embodiment of the present application further provides a terminal, which is a second terminal, including: a memory 1120, a transceiver 1100, and a processor 1110; wherein the memory 1120 is used to store a computer program; the transceiver 1100 is used to receive and send data under the control of the processor 1110; the processor 1110 is used to read the computer program in the memory and perform the following operations:

[0854] Receive first information sent by a first terminal, where the first information includes at least one of the following:

[0855] PSCCH carrier information;

[0856] PSSCH carrier information;

[0857] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0858] Optionally, the carrier information includes at least one of the following:

[0859] The index of the carrier;

[0860] BWP;

[0861] Index of BWP;

[0862] Carrier frequency information.

[0863] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0864] receiving an SCI sent by the first terminal, where the SCI carries the first information;

[0865] Receive second signaling sent by the first terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

[0866] Optionally, the SCI carries carrier information of the PSSCH and scheduling information of the carrier corresponding to the PSSCH;

[0867] or,

[0868] The second signaling carries carrier information of the PSSCH, and the SCI carries scheduling information of the carrier corresponding to the PSSCH;

[0869] or,

[0870] The second terminal obtains the carrier information of the PSSCH based on the historical scheduling information, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

[0871] Optionally, in the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other one of the carrier information of PSSCH and the carrier information of PSCCH is configured by the network device or configured by the first terminal alone, or obtained by monitoring on one or more carriers.

[0872] Optionally, in the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

[0873] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0874] sending fifth information to the first terminal;

[0875] The fifth information includes at least one of the following:

[0876] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal;

[0877] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal;

[0878] The carrier information of PSCCH at the terminal level;

[0879] Carrier information of PSSCH at terminal level.

[0880] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0881] Receiving an SCI sent by the first terminal, where the SCI carries frequency information;

[0882] Receive RRC signaling and / or MAC CE sent by the first terminal, where the RRC signaling and / or MAC CE carries frequency information.

[0883] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0884] Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship;

[0885] or,

[0886] The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

[0887] Among them, Fig.11In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1110 and various circuits of memory represented by memory 1120 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1100 may be a plurality of components, namely, a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1130 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0888] The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1110 when performing operations.

[0889] Optionally, the processor 1110 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0890] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0891] It should be noted here that the above-mentioned terminal provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment applied to the second terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0892] like Fig.12 As shown, an embodiment of the present application further provides a network device, including: a memory 1220, a transceiver 1200, and a processor 1210; wherein the memory 1220 is used to store a computer program; the transceiver 1200 is used to receive and send data under the control of the processor 1210; the processor 1210 is used to read the computer program in the memory and perform the following operations:

[0893] Sending configuration information to the first terminal, where the configuration information includes at least one of the following:

[0894] PSCCH carrier information;

[0895] PSSCH carrier information;

[0896] The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

[0897] Optionally, the carrier information includes at least one of the following:

[0898] The index of the carrier;

[0899] BWP;

[0900] Index of BWP;

[0901] Carrier frequency information.

[0902] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0903] Receive second information sent by the first terminal, where the second information includes at least one of the following information:

[0904] Target layer 2 identification of the direct communication interface;

[0905] The carrier set of PSCCH;

[0906] BWP set of PSCCH;

[0907] Frequency set of SCCH;

[0908] The carrier set of PSSCH;

[0909] BWP set of PSSCH;

[0910] The frequency set of PSSCH.

[0911] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0912] Receive third information sent by the first terminal, where the third information includes at least one of the following information:

[0913] Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal;

[0914] Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal;

[0915] The carrier information of PSCCH at the terminal level;

[0916] Carrier information of PSSCH at terminal level.

[0917] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0918] receiving fourth information sent by the first terminal, where the fourth information includes at least one of the following:

[0919] A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier;

[0920] The value of the reference signal received power RSRP of the direct communication link;

[0921] Information of the carrier corresponding to the direct communication link;

[0922] Information of a primary carrier suggested by the first terminal;

[0923] Information of a secondary carrier suggested by the first terminal;

[0924] Information of a primary carrier suggested by the second terminal;

[0925] Information about the secondary carrier suggested by the second terminal.

[0926] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0927] The configuration information is determined according to at least one of the second information, the third information, and the fourth information.

[0928] Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0929] Sending an SCI to the first terminal through a PDSCH, where the SCI carries the configuration information;

[0930] Sending a DCI to the first terminal, where the DCI is the DCI corresponding to the direct link, and the DCI carries the configuration information;

[0931] A first signaling is sent to the first terminal via a Uu interface, wherein the first signaling carries the configuration information; the first signaling includes: RRC signaling and / or MAC CE.

[0932] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0933] The carrier information of the PSCCH or the carrier information of the PSSCH is configured for the second terminal.

[0934] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0935] receiving a frequency information list sent by the first terminal, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level;

[0936] Sending frequency information to the first terminal;

[0937] The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

[0938] Among them, Fig.12 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1210 and memory represented by memory 1220. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1200 may be a plurality of components, namely including a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium. The processor 1210 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1210 when performing operations.

[0939] The processor 1210 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0940] It should be noted here that the above-mentioned network device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment applied to the network device, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0941] In addition, a specific embodiment of the present application further provides a processor-readable storage medium on which a computer program is stored, wherein the program, when executed by the processor, implements the steps of the above-mentioned cross-carrier scheduling method and can achieve the same technical effect. To avoid repetition, it is not repeated here. The readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0942] It should be noted that the technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0943] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0944] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0945] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0946] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0947] The present application is described with reference to the flowchart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, and the combination of the process and / or box in the flowchart and / or block diagram can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing a process or multiple processes in the flowchart and / or a box or multiple boxes in the block diagram.

[0948] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0949] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0950] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for cross-carrier scheduling, characterized in that: include: The first terminal sends first information to the second terminal, where the first information includes at least one of the following: Carrier information of the physical direct link control channel PSCCH; Carrier information of the physical direct link shared channel PSSCH; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

2. The method according to claim 1, characterized in that The carrier information includes at least one of the following: The index of the carrier; Bandwidth part BWP; Index of BWP; Carrier frequency information.

3. The method according to claim 1, characterized in that The method further comprises: Sending second information to the network device, where the second information includes at least one of the following information: Target layer 2 identification of the direct communication interface; The carrier set of PSCCH; BWP set of PSCCH; Frequency set of PSCCH; The carrier set of PSSCH; BWP set of PSSCH; The frequency set of PSSCH.

4. The method according to claim 1, characterized in that: The method further comprises: Sending third information to the network device, where the third information includes at least one of the following information: Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal; Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal; The carrier information of PSCCH at the terminal level; Carrier information of PSSCH at terminal level.

5. The method according to claim 1, characterized in that The method further comprises: Sending fourth information to the network device, where the fourth information includes at least one of the following: A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier; The value of the reference signal received power RSRP of the direct communication link; Information of the carrier corresponding to the direct communication link; Information of a primary carrier suggested by the first terminal; Information of a secondary carrier suggested by the first terminal; Information of a primary carrier suggested by the second terminal; Information about the secondary carrier suggested by the second terminal.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: Receive configuration information sent by a network device, where the configuration information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

7. The method according to claim 6, characterized in that The receiving of configuration information sent by the network device includes at least one of the following: Receiving direct link control information SCI sent by the network device through a physical downlink shared channel PDSCH, wherein the SCI carries the configuration information; receiving downlink control information DCI sent by the network device, where the DCI is DCI corresponding to a direct link and the DCI carries the configuration information; Receiving a first signaling sent by the network device through a Uu interface, where the first signaling carries the configuration information; The first signaling includes: radio resource control RRC signaling and / or medium access control control unit MAC CE.

8. The method according to claim 1, characterized in that The sending the first information to the second terminal includes at least one of the following: Sending an SCI to the second terminal, where the SCI carries the first information; Send a second signaling to the second terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

9. The method according to claim 8, characterized in that The SCI carries the carrier information of the PSSCH and the scheduling information of the carrier corresponding to the PSSCH; or, The second signaling carries the carrier information of the PSSCH, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

10. The method according to claim 1, characterized in that In the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other of the carrier information of PSSCH and PSCCH is configured to the second terminal by the network device, or is configured to the second terminal by the first terminal alone, or is obtained by the second terminal by monitoring on one or more carriers.

11. The method according to claim 1, characterized in that: The method further comprises: Determining to perform cross-carrier scheduling when a first condition is met; The sending the first information to the second terminal includes: In case it is determined to perform cross-carrier scheduling, first information is sent to the second terminal.

12. The method according to claim 11, characterized in that The first condition includes at least one of the following: The RSRP value of the carrier or link where the SCI is located is less than the first value; The RSRP values ​​of other carriers or links except the carrier or link where the SCI is located are greater than the second value; The channel busy rate CBR of the carrier where the SCI is located is greater than the third value; The CBR values ​​of other carriers except the carrier where the SCI is located are less than the fourth value; The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the channel occupancy rate CO is greater than the fifth value; The carrier where the SCI is located is an unlicensed direct link SL-U channel, and the received signal strength indication RSSI value is greater than the sixth value.

13. The method according to claim 11, characterized in that In the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

14. The method according to claim 4, characterized in that The method further comprises: receiving fifth information sent by the second terminal; determining the third information according to the fifth information; The fifth information includes at least one of the following: Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal; Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal; The carrier information of PSCCH at the terminal level; Carrier information of PSSCH at terminal level.

15. The method according to claim 1, characterized in that The method further comprises: Sending a frequency information list to the network device, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level; Acquire frequency information sent by the network device; The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

16. The method according to claim 15, characterized in that The method further comprises at least one of the following: Sending an SCI to the second terminal, where the SCI carries the frequency information; Send RRC signaling and / or MAC CE to the second terminal, where the RRC signaling and / or MAC CE carries the frequency information.

17. The method according to claim 6, characterized in that The method further comprises: Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship; or, The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

18. A method for cross-carrier scheduling, characterized in that: include: The second terminal receives first information sent by the first terminal, where the first information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

19. The method according to claim 18, characterized in that The carrier information includes at least one of the following: The index of the carrier; BWP; Index of BWP; Carrier frequency information.

20. The method according to claim 18, characterized in that The receiving the first information sent by the first terminal includes at least one of the following: receiving an SCI sent by the first terminal, where the SCI carries the first information; Receive second signaling sent by the first terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

21. The method according to claim 20, characterized in that The SCI carries the carrier information of the PSSCH and the scheduling information of the carrier corresponding to the PSSCH; or, The second signaling carries carrier information of the PSSCH, and the SCI carries scheduling information of the carrier corresponding to the PSSCH; or, The second terminal obtains the carrier information of the PSSCH based on the historical scheduling information, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

22. The method according to claim 18, characterized in that In the case where the first information includes one of the carrier information of PSSCH and the carrier information of PSCCH, the other of the carrier information of PSSCH and the carrier information of PSCCH is configured by the network device or configured by the first terminal alone, or obtained by monitoring on one or more carriers.

23. The method according to claim 18, characterized in that In the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

24. The method according to claim 18, characterized in that The method further comprises: sending fifth information to the first terminal; The fifth information includes at least one of the following: Carrier information of the PSCCH associated with the layer 2 identifier suggested by the second terminal; Carrier information of the PSSCH associated with the layer 2 identifier suggested by the second terminal; The carrier information of PSCCH at the terminal level; Carrier information of PSSCH at terminal level.

25. The method according to claim 18, characterized in that The method further comprises at least one of the following: Receiving an SCI sent by the first terminal, where the SCI carries frequency information; Receive RRC signaling and / or MAC CE sent by the first terminal, where the RRC signaling and / or MAC CE carries frequency information.

26. The method according to claim 18, characterized in that The method further comprises: Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship; or, The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

27. A method for cross-carrier scheduling, characterized in that: include: The network device sends configuration information to the first terminal, where the configuration information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

28. The method according to claim 27, characterized in that The carrier information includes at least one of the following: The index of the carrier; BWP; Index of BWP; Carrier frequency information.

29. The method according to claim 27, characterized in that The method further comprises: Receive second information sent by the first terminal, where the second information includes at least one of the following information: Target layer 2 identification of the direct communication interface; The carrier set of PSCCH; BWP set of PSCCH; Frequency set of SCCH; The carrier set of PSSCH; BWP set of PSSCH; The frequency set of PSSCH.

30. The method according to claim 27, characterized in that The method further comprises: Receive third information sent by the first terminal, where the third information includes at least one of the following information: Carrier information of the PSCCH associated with the layer 2 identifier suggested by the first terminal; Carrier information of the PSSCH associated with the layer 2 identifier suggested by the first terminal; The carrier information of PSCCH at the terminal level; Carrier information of PSSCH at terminal level.

31. The method according to claim 27, characterized in that The method further comprises: receiving fourth information sent by the first terminal, where the fourth information includes at least one of the following: A channel busy rate CBR corresponding to a target carrier; the target carrier is a carrier supported by the first terminal based on a layer 2 identifier; The value of the reference signal received power RSRP of the direct communication link; Information of the carrier corresponding to the direct communication link; Information of a primary carrier suggested by the first terminal; Information of a secondary carrier suggested by the first terminal; Information of a primary carrier suggested by the second terminal; Information about the secondary carrier suggested by the second terminal.

32. The method according to any one of claims 29 to 31, characterized in that The method further comprises: The configuration information is determined according to at least one of the second information, the third information, and the fourth information.

33. The method according to claim 27, characterized in that The sending of configuration information to the first terminal includes at least one of the following: Sending an SCI to the first terminal through a PDSCH, where the SCI carries the configuration information; Sending a DCI to the first terminal, where the DCI is the DCI corresponding to the direct link, and the DCI carries the configuration information; Sending a first signaling to the first terminal through a Uu interface, where the first signaling carries the configuration information; The first signaling includes: RRC signaling and / or MAC CE.

34. The method according to claim 27, characterized in that The method further comprises: The carrier information of the PSCCH or the carrier information of the PSSCH is configured for the second terminal.

35. The method according to claim 27, characterized in that The method further comprises: receiving a frequency information list sent by the first terminal, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level; Sending frequency information to the first terminal; The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

36. A terminal, characterized in that: include: Memory, transceiver, processor: Memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Sending first information to the second terminal, where the first information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

37. The terminal according to claim 36, characterized in that The processor is configured to read the computer program in the memory and perform the following operations: Receive configuration information sent by a network device, where the configuration information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

38. The terminal according to claim 37, characterized in that The processor is configured to read the computer program in the memory and perform at least one of the following operations: Receiving direct link control information SCI sent by the network device through a physical downlink shared channel PDSCH, wherein the SCI carries the configuration information; receiving downlink control information DCI sent by the network device, where the DCI is DCI corresponding to a direct link and the DCI carries the configuration information; Receiving a first signaling sent by the network device through a Uu interface, where the first signaling carries the configuration information; The first signaling includes: radio resource control RRC signaling and / or medium access control control unit MAC CE.

39. The terminal according to claim 36, characterized in that The processor is configured to read the computer program in the memory and perform at least one of the following operations: Sending an SCI to the second terminal, where the SCI carries the first information; Sending a second signaling to the second terminal, where the second signaling carries the first information; The second signaling includes RRC signaling and / or MAC CE.

40. The terminal according to claim 39, characterized in that The SCI carries the carrier information of the PSSCH and the scheduling information of the carrier corresponding to the PSSCH; or, The second signaling carries the carrier information of the PSSCH, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

41. The terminal according to claim 36, characterized in that The processor is configured to read the computer program in the memory and perform the following operations: Determining to perform cross-carrier scheduling when a first condition is met; The sending the first information to the second terminal includes: In case it is determined to perform cross-carrier scheduling, first information is sent to the second terminal.

42. The terminal according to claim 41, characterized in that In the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

43. The terminal according to claim 36, characterized in that The processor is configured to read the computer program in the memory and perform the following operations: Sending a frequency information list to the network device, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level; Acquire frequency information sent by the network device; The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

44. The terminal according to claim 43, characterized in that The processor is configured to read the computer program in the memory and perform at least one of the following operations: Sending an SCI to the second terminal, where the SCI carries the frequency information; Send RRC signaling and / or MAC CE to the second terminal, where the RRC signaling and / or MAC CE carries the frequency information.

45. The terminal according to claim 37, characterized in that The processor is configured to read the computer program in the memory and perform the following operations: Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship; or, The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

46. ​​A terminal, characterized in that: include: Memory, transceiver, processor: Memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Receive first information sent by a first terminal, where the first information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

47. The terminal according to claim 46, characterized in that The processor is configured to read the computer program in the memory and perform at least one of the following operations: receiving an SCI sent by the first terminal, where the SCI carries the first information; Receive second signaling sent by the first terminal, where the second signaling carries the first information; the second signaling includes RRC signaling and / or MAC CE.

48. The terminal according to claim 47, characterized in that The SCI carries the carrier information of the PSSCH and the scheduling information of the carrier corresponding to the PSSCH; or, The second signaling carries carrier information of the PSSCH, and the SCI carries scheduling information of the carrier corresponding to the PSSCH; or, The second terminal obtains the carrier information of the PSSCH based on the historical scheduling information, and the SCI carries the scheduling information of the carrier corresponding to the PSSCH.

49. The terminal according to claim 46, characterized in that In the case of performing cross-carrier scheduling, the subcarrier spacing of the carrier of the PSCCH is the same as the subcarrier spacing of the carrier of the PSSCH.

50. The terminal according to claim 46, characterized in that The processor is configured to read the computer program in the memory and perform at least one of the following operations: Receiving an SCI sent by the first terminal, where the SCI carries frequency information; Receive RRC signaling and / or MAC CE sent by the first terminal, where the RRC signaling and / or MAC CE carries frequency information.

51. The terminal according to claim 46, characterized in that The processor is configured to read the computer program in the memory and perform the following operations: Determine the carrier information of the PSSCH according to the carrier information of the PSCCH and the mapping relationship; or, The carrier information of the PSCCH is determined according to the carrier information of the PSSCH and the mapping relationship.

52. A network device, characterized in that: include: Memory, transceiver, processor: Memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Sending configuration information to the first terminal, where the configuration information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

53. The network device according to any one of claims 52, characterized in that: The processor is configured to read the computer program in the memory and perform the following operations: The configuration information is determined according to at least one of the second information, the third information, and the fourth information.

54. The network device according to claim 52, characterized in that The processor is configured to read the computer program in the memory and perform at least one of the following operations: Sending an SCI to the first terminal through a PDSCH, where the SCI carries the configuration information; Sending a DCI to the first terminal, where the DCI is the DCI corresponding to the direct link, and the DCI carries the configuration information; Sending a first signaling to the first terminal through a Uu interface, where the first signaling carries the configuration information; The first signaling includes: RRC signaling and / or MAC CE.

55. The network device according to claim 52, characterized in that The processor is configured to read the computer program in the memory and perform the following operations: The carrier information of the PSCCH or the carrier information of the PSSCH is configured for the second terminal.

56. The network device according to claim 52, characterized in that The processor is configured to read the computer program in the memory and perform the following operations: receiving a frequency information list sent by the first terminal, where the frequency information list is a frequency information list used by a layer 2 identifier or a frequency information list for a direct communication link at a terminal level; Sending frequency information to the first terminal; The frequency information is included in the configuration information, or the frequency information is carried in a third signaling, and the third signaling includes RRC signaling and / or MAC CE.

57. A device for cross-carrier scheduling, characterized in that: include: The first sending unit is configured to send first information to the second terminal, where the first information includes at least one of the following: Carrier information of the physical direct link control channel PSCCH; Carrier information of the physical direct link shared channel PSSCH; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

58. A device for cross-carrier scheduling, characterized in that: include: The first receiving unit is configured to receive first information sent by a first terminal, where the first information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

59. A cross-carrier scheduling device, characterized in that: include: The second sending unit is configured to send configuration information to the first terminal, where the configuration information includes at least one of the following: PSCCH carrier information; PSSCH carrier information; The mapping relationship between the carrier information of PSCCH and the carrier information of PSSCH.

60. A processor-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the steps of the cross-carrier scheduling method as described in any one of claims 1 to 17, or implements the steps of the cross-carrier scheduling method as described in any one of claims 18 to 26, or implements the steps of the cross-carrier scheduling method as described in any one of claims 27 to 35.

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