Carrier aggregation method and device, terminal and network equipment

Abstract

The invention provides a carrier aggregation method and device, a terminal and network equipment. The method comprises the following steps: acquiring resources for carrying out direct link carrier aggregation (SL-CA) transmission; and after the resource is occupied, carrying out SL-CA transmission in one of an aggregation mode of in-band continuous carrier aggregation, in-band discontinuous carrier aggregation and inter-band discontinuous carrier aggregation. By adopting the method, the SL technology and the CA technology can be combined, the resources for carrying out SL-CA transmission are obtained, and the SL-CA transmission is carried out in one of the aggregation modes of in-band continuous carrier aggregation, in-band discontinuous carrier aggregation and inter-band discontinuous carrier aggregation.

Description

Technical Field

[0001] The present application relates to the field of wireless technology, and in particular to a carrier aggregation method, apparatus, terminal and network equipment. Background Art

[0002] Carrier Aggregation (CA) is a technology that integrates wireless channel resources within or between frequency bands to increase the user's data transmission rate and reduce latency. CA technology can aggregate multiple component carriers (CCs) together to achieve a larger transmission bandwidth, effectively improving the uplink and downlink transmission rates. The terminal can use up to several carriers for uplink and downlink transmission at the same time based on its own capabilities.

[0003] The CA concept is not introduced in the existing NR SL technology. With the in-depth study of SL, the terminal needs a larger bandwidth and the FR2 band needs to be enhanced. CA technology can significantly improve the terminal communication bandwidth. Therefore, it is meaningful to introduce CA technology in NR SL. Since the NR / LTE standard is very different from the SL standard, the CA technology in the existing NR / LTE standard is not compatible with the SL technology, so the CA content needs to be redesigned to adapt to the SL technical standard. Summary of the invention

[0004] The purpose of the present application is to provide a carrier aggregation method, apparatus, terminal and network equipment for combining CA and SL technologies to realize SL-CA transmission.

[0005] One embodiment of the present application provides a carrier aggregation method, wherein the method is performed by a first terminal, and the method includes:

[0006] Acquire resources for performing direct link carrier aggregation SL-CA transmission;

[0007] After occupying the resources, SL-CA transmission is performed through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0008] In some of the embodiments, in the carrier aggregation method, obtaining the resources for the SL-CA transmission includes at least one of the following:

[0009] Acquire the resources transmitted by the SL-CA as instructed by the network device;

[0010] The resource sensing is performed by adopting a sensing method of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to obtain the resource of the SL-CA transmission.

[0011] In some of the embodiments, the carrier aggregation method further comprises:

[0012] Synchronization is performed through the direct link synchronization signal block S-SSB to determine the synchronization resources for SL-CA transmission.

[0013] In some of the embodiments, the carrier aggregation method, in which, when SL-CA transmission is performed through an aggregation mode of intra-band continuous carrier aggregation or intra-band non-continuous carrier aggregation, synchronization is performed through a direct link synchronization signal block S-SSB, including:

[0014] Synchronization is performed through S-SSB in the same frequency band as the carriers used for carrier aggregation.

[0015] In some of the embodiments, the carrier aggregation method, in which, when SL-CA transmission is performed by an aggregation mode of inter-band non-continuous carrier aggregation, synchronization is performed by the S-SSB, including:

[0016] S-SSB is used to synchronize multiple carriers in different frequency bands used for carrier aggregation.

[0017] In some of the embodiments, the carrier aggregation method, wherein, after synchronizing respectively different frequency bands of multiple carriers used for carrier aggregation through S-SSB, the method further comprises:

[0018] Obtain synchronization resources corresponding to each frequency band;

[0019] Among them, sending SL-CA information includes:

[0020] According to the synchronization resources of each frequency band, SL-CA information is sent through each frequency band respectively.

[0021] In some of the embodiments, the carrier aggregation method further comprises:

[0022] Sending a first request to the network device; wherein the first request includes carrier information for requesting SL-CA transmission;

[0023] The obtaining of the resources transmitted by the SL-CA as instructed by the network device includes:

[0024] The resource is received, which is sent by the network device through the carrier corresponding to the carrier information according to the first request.

[0025] In some of the embodiments, the carrier aggregation method, wherein the network device instructs to obtain the resources for the SL-CA transmission, includes:

[0026] Acquire the resource indicated by the network device through the first downlink control information DCI; and / or

[0027] Acquire the transmission resources allocated by the network device to the first terminal through RRC signaling, and acquire the resources in the transmission resources indicated by the network device through second DCI signaling.

[0028] In some of the embodiments, the carrier aggregation method, wherein, when a static sensing parameter adjustment and / or a dynamic sensing parameter adjustment sensing mode is used to sense resources and obtain resources for the SL-CA transmission, the method further includes:

[0029] Acquire the transmission resource indicated by the second terminal to the first terminal through the first SCI signaling; and / or

[0030] Acquire allocated resources allocated by the second terminal to the first terminal through PC5-RRC signaling, and acquire transmission resources in the allocated resources indicated by the second terminal through second SCI signaling;

[0031] Wherein, the transmission resources are used for resource perception.

[0032] In some of the embodiments, the carrier aggregation method, wherein static sensing parameter adjustment is used for resource sensing, includes one or more of the following:

[0033] During the resource sensing process, a threshold value of a channel state parameter used to monitor the resource sensing process is adjusted according to a static sensing parameter, and / or a maximum number of carriers for simultaneous resource sensing is adjusted.

[0034] In some of the embodiments, the carrier aggregation method, wherein the static perception parameter includes one or more of the priority of the transmitted service and the capability of the first terminal.

[0035] In some of the embodiments, the carrier aggregation method, wherein dynamic sensing parameter adjustment is used for resource sensing, includes one or more of the following:

[0036] During the resource sensing process, one or more of the following parameters are adjusted based on the dynamic sensing parameters:

[0037] A plurality of channel status parameters for monitoring the resource sensing process;

[0038] Threshold values ​​corresponding to the plurality of channel state parameters respectively;

[0039] weight values ​​corresponding to the plurality of channel state parameters respectively;

[0040] The maximum number of carriers that can be simultaneously resource sensed;

[0041] The first parameter in the service priority parameter and / or the weight of the channel state parameter used to monitor the resource perception process; wherein the service priority parameter is related to the first parameter and the weight, the larger the first parameter is, the higher the priority level of the service priority parameter is; the smaller the weight is, the higher the priority level of the service priority parameter is.

[0042] In some of the embodiments, in the carrier aggregation method, the dynamic perception parameter includes one or more of the following parameters:

[0043] The type of traffic being transmitted;

[0044] The priority of the traffic being transmitted;

[0045] Current channel environment;

[0046] current power consumption of the first terminal;

[0047] a current transmission power of the first terminal;

[0048] The transmission status of the transmitted service.

[0049] In some of the embodiments, the carrier aggregation method, wherein the resource sensing is performed using a sensing method of static sensing parameter adjustment and a sensing parameter adjustment, includes:

[0050] In the resource sensing process, according to preset parameters, one of the sensing modes of static sensing parameter adjustment and dynamic sensing parameter adjustment is selected to perform resource sensing.

[0051] In some embodiments, in the carrier aggregation method, the preset parameter state includes one or more of the following:

[0052] The priority of the traffic being transmitted;

[0053] capabilities of the first terminal;

[0054] power consumption of the first terminal.

[0055] In some of the embodiments, the carrier aggregation method, wherein the channel state parameters include one or more of pulse repetition rate PRR, bit error rate BER, channel busy rate CBR, call rate CR, collision rate and power.

[0056] One embodiment of the present application provides a carrier aggregation method, wherein the method is performed by a second terminal, and the method includes:

[0057] SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation is obtained.

[0058] In some of the embodiments, the carrier aggregation method, wherein a first SCI signaling is sent to the first terminal, the first SCI signaling includes a transmission resource indicated to the first terminal; and / or

[0059] Sending PC5-RRC signaling to the first terminal, where the PC5-RRC signaling includes allocated resources allocated to the first terminal; and sending second SCI signaling to the first terminal, where the second SCI signaling is used to indicate transmission resources in the allocated resources;

[0060] Wherein, the transmission resources are used for resource perception.

[0061] One embodiment of the present application provides a carrier aggregation method, wherein the method is performed by a network device, and the method includes:

[0062] Sending resources for performing direct link carrier aggregation (SL-CA) transmission to the first terminal.

[0063] In some of the embodiments, the carrier aggregation method further comprises:

[0064] receiving a first request sent by the first terminal; wherein the first request includes carrier information for SL-CA transmission;

[0065] The sending of the resource to the first terminal includes:

[0066] According to the first request, the resource is sent to the first terminal via the carrier corresponding to the carrier information.

[0067] In some of the embodiments, the carrier aggregation method, wherein sending the resource to the first terminal, includes one or more of the following:

[0068] Sending the resource to the first terminal through first downlink control information DCI; and / or

[0069] Transmission resources are allocated to the first terminal through RRC signaling, and the resources in the transmission resources are indicated to the first terminal through second DCI signaling.

[0070] One embodiment of the present application provides a terminal, wherein the terminal is a first terminal, which includes a memory, a transceiver, and a processor:

[0071] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0072] Acquire resources for performing direct link carrier aggregation SL-CA transmission;

[0073] After occupying the resources, SL-CA transmission is performed through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0074] In some embodiments, in the terminal, the processor reads the computer program in the memory, and the acquisition of the resource for the SL-CA transmission includes at least one of the following:

[0075] Acquire the resources transmitted by the SL-CA as instructed by the network device;

[0076] The resource sensing is performed by adopting a sensing method of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to obtain the resource of the SL-CA transmission.

[0077] In some embodiments, the terminal, wherein the processor reads the computer program in the memory, and uses static sensing parameter adjustment to perform resource sensing, includes one or more of the following:

[0078] During the resource sensing process, a threshold value of a channel state parameter used to monitor the resource sensing process is adjusted according to a static sensing parameter, and / or a maximum number of carriers for simultaneous resource sensing is adjusted.

[0079] In some embodiments, the terminal, wherein the processor reads the computer program in the memory, and uses dynamic sensing parameter adjustment to perform resource sensing, includes one or more of the following:

[0080] During the resource sensing process, one or more of the following parameters are adjusted based on the dynamic sensing parameters:

[0081] A plurality of channel status parameters for monitoring the resource sensing process;

[0082] Threshold values ​​corresponding to the plurality of channel state parameters respectively;

[0083] weight values ​​corresponding to the plurality of channel state parameters respectively;

[0084] The maximum number of carriers that can be simultaneously resource sensed;

[0085] The first parameter in the service priority parameter and / or the weight of the channel state parameter used to monitor the resource perception process; wherein the service priority parameter is related to the first parameter and the weight, the larger the first parameter is, the higher the priority level of the service priority parameter is; the smaller the weight is, the higher the priority level of the service priority parameter is.

[0086] In some embodiments, the terminal, wherein the processor reads the computer program in the memory, and uses static perception parameter adjustment and dynamic perception parameter adjustment to perform resource perception, including:

[0087] In the resource sensing process, according to preset parameters, one of the sensing modes of static sensing parameter adjustment and dynamic sensing parameter adjustment is selected to perform resource sensing.

[0088] One embodiment of the present application provides a terminal, wherein the terminal is a second terminal, which includes a memory, a transceiver, and a processor:

[0089] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0090] SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation is obtained.

[0091] One embodiment of the present application provides a network device, which includes a memory, a transceiver, and a processor:

[0092] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0093] Sending resources for performing direct link carrier aggregation (SL-CA) transmission to the first terminal.

[0094] One embodiment of the present application provides a carrier aggregation device, which is applied to a first terminal, and includes:

[0095] A resource acquisition unit, used to acquire resources for performing direct link carrier aggregation SL-CA transmission;

[0096] The transmission unit is used to perform SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation after occupying the resources.

[0097] One embodiment of the present application provides a carrier aggregation device, which is applied to a second terminal, and includes:

[0098] The information acquisition unit is used to acquire SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of the aggregation modes of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0099] One embodiment of the present application provides a carrier aggregation device, which is applied to a network device, and the device includes:

[0100] The resource sending unit is used to send resources used for performing direct link carrier aggregation SL-CA transmission to the first terminal.

[0101] One embodiment of the present application provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the carrier aggregation method as described in any one of the above items. The beneficial effects of the above technical solution of the present application are as follows:

[0102] By adopting the carrier aggregation method described in the embodiment of the present invention, SL and CA technologies can be combined to obtain resources for direct link carrier aggregation SL-CA transmission, and SL-CA transmission can be performed through one of the aggregation methods of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] Figure 1 This is a flow chart of the carrier aggregation method described in Embodiment 1 of the present application;

[0104] Figure 2 To illustrate the principle of carrier aggregation using the method described in the embodiment of the present invention;

[0105] Figure 3 A schematic diagram of a mode structure of the method according to an embodiment of the present invention is described;

[0106] Figure 4 Another schematic diagram of a mode structure is described using the method described in an embodiment of the present invention;

[0107] Figure 5 A schematic diagram to illustrate the principle of information transmission after synchronization in different frequency bands;

[0108] Figure 6 A schematic diagram for explaining the form of carrier scheduling;

[0109] Figure 7This is a flow chart of a carrier aggregation method according to a second embodiment of the present invention;

[0110] Figure 8 This is a flow chart of a carrier aggregation method according to Embodiment 3 of the present invention;

[0111] Fig. 9 A schematic diagram of the structure of a terminal according to one embodiment of the present invention;

[0112] Fig.10 This is a schematic diagram of the structure of a terminal according to another embodiment of the present invention;

[0113] Fig.11 A schematic diagram of the structure of a network device according to an embodiment of the present invention;

[0114] Fig.12 This is a schematic diagram of the structure of the carrier aggregation device according to the first embodiment of the present invention;

[0115] Fig.13 This is a schematic diagram of the structure of a carrier aggregation device according to Embodiment 2 of the present invention;

[0116] Fig.14 This is a schematic diagram of the structure of the carrier aggregation device described in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0117] 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.

[0118] 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.

[0119] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0120] 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 air interface (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.

[0121] 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). The wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can 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 can 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 (PDA) 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.

[0122] 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.

[0123] In order to solve the problem that the existing technology does not have a combination of CA and SL technology to achieve SL-CA transmission, an embodiment of the present invention provides a carrier aggregation method, whereby a terminal can obtain resources for performing direct link carrier aggregation SL-CA transmission, and perform SL-CA transmission through one of the aggregation methods of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0124] Figure 1 FIG. 1 is a flow chart of a carrier aggregation method according to one embodiment of the present invention. Figure 1 As shown, the method includes:

[0125] S110, acquiring resources for performing direct link carrier aggregation SL-CA transmission;

[0126] S120: After occupying the resources, perform SL-CA transmission by using one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0127] By adopting the carrier aggregation method described in the embodiment of the present invention, SL-CA transmission supports three different aggregation modes: intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0128] Combination Figure 2 As shown, the representation structures of three different aggregation methods, namely intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation, are different. The carrier center frequency spacings of the three aggregation methods are different. In the embodiments of the present invention, the corresponding synchronization processes and resource indication methods adopted are also different.

[0129] In one implementation of the embodiment of the present invention, optionally, in step S110, obtaining the resource for the SL-CA transmission includes at least one of the following:

[0130] Acquire the resources transmitted by the SL-CA as instructed by the network device;

[0131] The resource sensing is performed by adopting a sensing method of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to obtain the resource of the SL-CA transmission.

[0132] In SL technology, there are two resource scheduling scenarios. One is based on network scheduling, which can be called mode 1. Figure 3 As shown; one is that the terminal autonomously selects the transmission resource, which is called mode 2 (mode 2), as shown Figure 4 As shown. For the resource scheduling scenarios of the two modes, the carrier aggregation method described in the embodiment of the present invention provides carrier aggregation modes for different modes, wherein in one carrier aggregation mode, the carrier aggregation process is indicated or scheduled by a network device, and in another carrier aggregation mode, the carrier aggregation process is determined by the capabilities of the transmitting terminal and the receiving terminal. Therefore, using the carrier aggregation method described in the embodiment of the present invention, different carrier aggregation schemes can be used for different modes.

[0133] In one embodiment of the present invention, for mode 1, the network device directly performs resource scheduling and resource indication on the first terminal, indicating the first terminal the resources used for SL-CA transmission, and the first terminal obtains the resources and performs SL-CA transmission; for mode 2, the first terminal adopts a perception method to obtain the resources for SL-CA transmission, and optionally, a perception method of static perception parameter adjustment and / or dynamic perception parameter adjustment can be used for resource perception. Specifically, the first terminal, as a transmitter, first determines a candidate resource set, selects CA resources from the candidate resource set, and after occupying the resources, adopts an aggregation method to perform SL-CA transmission.

[0134] In the embodiment of the present invention, optionally, the method further includes:

[0135] The synchronization is performed through the sidelink synchronization signal block (S-SSB) to determine the synchronization resource for SL-CA transmission.

[0136] In one implementation, when SL-CA transmission is performed by an aggregation mode of intra-band continuous carrier aggregation or intra-band non-continuous carrier aggregation, synchronization is performed by a direct link synchronization signal block S-SSB, including:

[0137] Synchronization is performed through S-SSB in the same frequency band as the carriers used for carrier aggregation.

[0138] In another embodiment, when SL-CA transmission is performed by aggregation mode of inter-band non-continuous carrier aggregation, synchronization is performed by the S-SSB, including:

[0139] S-SSB is used to synchronize multiple carriers in different frequency bands used for carrier aggregation.

[0140] The carrier aggregation method described in the embodiment of the present invention implements SL-CA carrier aggregation during the synchronization process and supports synchronization using S-SSB. Optionally, for the two aggregation modes of intra-band continuous carrier aggregation and intra-band non-continuous carrier aggregation, a method of performing synchronization once in the same frequency band of the carriers used for carrier aggregation is adopted through S-SSB; for inter-band non-continuous carrier aggregation, a method of performing synchronization separately in different frequency bands of multiple carriers used for carrier aggregation is adopted through S-SSB, and optionally, each frequency band only needs to be synchronized once.

[0141] Specifically, during the synchronization process, the first terminal determines the synchronization source, obtains synchronization information according to the synchronization source, and determines the sidelink synchronization signal (SLSS), the corresponding SLSS identification ID and the physical sidelink broadcast channel (PSBCH) information according to the synchronization source, and determines the synchronization resources for sending SLSS and PSBCH. Through this synchronization process, SL-CA transmission can be performed after synchronization is completed within the frequency band where the carrier is located.

[0142] In the embodiment of the present invention, optionally, after synchronizing respectively in different frequency bands of multiple carriers used for carrier aggregation through S-SSB, the method further includes:

[0143] Obtain synchronization resources corresponding to each frequency band;

[0144] Among them, sending SL-CA information includes:

[0145] According to the synchronization resources of each frequency band, SL-CA information is sent through each frequency band respectively.

[0146] Specifically, for the inter-band non-continuous carrier aggregation method, when CA spans multiple frequency bands, it is necessary to perform the synchronization process separately in each frequency band. After the synchronization process of each frequency band is completed, signal transmission can be performed, and each frequency band transmits independently without affecting each other.

[0147] For example, Figure 5 As shown, UE1 and UE2 perform SL-CA communication, and the communication frequency range spans two frequency bands, N77 and N78. UE1 and UE2 need to perform synchronization processes in the two frequency bands respectively.

[0148] In the embodiment of the present invention, different resource indication methods are used for mode 1 and mode 2. For the mode 1 scenario, resource scheduling and resource indication can be performed using the same component carrier as the received uplink Grant signal, or the network can directly perform resource scheduling and resource indication. The gNB instructs the terminal to use the corresponding resources for transmission, and cross-carrier scheduling can be performed, such as Figure 6 shown.

[0149] Specifically, in one implementation mode, optionally, the first terminal sends a first request to the network device to request the carrier information of SL-CA transmission, and the network device may send the indicated resources to the first terminal based on the carrier corresponding to the carrier information requested by the first terminal; in another implementation mode, the network device may also directly send resource scheduling and resource indicated resources to the first terminal.

[0150] In the embodiment of the present invention, the network device instructs to obtain the resources transmitted by the SL-CA, including:

[0151] Acquire the resource indicated by the network device through the first downlink control information DCI; and / or

[0152] Acquire the transmission resources allocated by the network device to the first terminal through RRC signaling, and acquire the resources in the transmission resources indicated by the network device through second DCI signaling.

[0153] Specifically, the above-mentioned acquisition of the resources indicated by the network device through the first downlink control information DCI can be a dynamic scheduling resource allocation method; using this implementation method, in the mode1 scenario, a dynamic scheduling resource allocation method is adopted, and the network device allocates transmission resources to the first terminal through the downlink control information DCI. Optionally, each DCI signaling allocates transmission resources for a SL data transmitted by the first terminal.

[0154] The above-mentioned another method of obtaining the resources for the SL-CA transmission, obtaining the transmission resources allocated by the network device to the first terminal through RRC signaling, and obtaining the resources in the transmission resources indicated by the network device through the second DCI signaling, can be a semi-static resource allocation method; using this method, in the mode1 scenario, a semi-static resource allocation method is adopted, and the network device semi-statically allocates a group of resources to the terminal through RRC signaling and DCI signaling, and the terminal continues to use the resources for data transmission before the network device releases the allocated resources.

[0155] In an embodiment of the present invention, a first terminal sends a first request to a network device to request carrier information for SL-CA transmission, and the network device sends the indicated resource to the first terminal according to the carrier corresponding to the carrier information requested by the first terminal. The selection of transmission resources can be determined by the first terminal. The first terminal UE sends a communication request to the base station through one or more carriers (that is, sends a first request, such as including sidelink terminal information SidelinkUEInformation). The communication request contains the carrier information corresponding to SL-CA. After the network device gNB receives and decodes the relevant information, it uses the same component carrier as the received uplink authorization signal for resource scheduling, and subsequent resource scheduling is completed by sending DCI through the carrier. In another embodiment, the network device can also directly send resource scheduling and resource indication resources to the first terminal; optionally, for a terminal or user that has completed network access (for example, a user in the RRC_CONNECTED state), the network device gNB can directly select idle resources to send DCI information to indicate resources for SL-CA transmission. The resource indication method includes two scenarios: gNB directly communicates with UE and gNB indicates communication between UEs.

[0156] After receiving the DCI information indicating the resource, the first terminal decodes and obtains the candidate CA resource, and sends the SL-CA information in the corresponding resource.

[0157] For the mode2 scenario, resource allocation may include dynamic resource allocation and semi-static resource allocation. For dynamic resource allocation, the second terminal allocates resources to the first UE through SCI, and for semi-static resource allocation, the second terminal semi-statically allocates a set of resources to the first terminal through PC5-RRC signaling and SCI signaling.

[0158] Specifically, in the embodiment of the present invention, when the static perception parameter adjustment and / or dynamic perception parameter adjustment perception mode is adopted to perform resource perception and obtain the resources of the SL-CA transmission, the method further includes:

[0159] Acquire the transmission resource indicated by the second terminal to the first terminal through the first SCI signaling; and / or

[0160] Acquire allocated resources allocated by the second terminal to the first terminal through PC5-RRC signaling, and acquire transmission resources in the allocated resources indicated by the second terminal through second SCI signaling;

[0161] Wherein, the transmission resources are used for resource perception.

[0162] It should be noted that, in the embodiment of the present invention, different resource allocation methods or resource scheduling methods adopted in different modes may correspond to different services respectively.

[0163] In the embodiment of the present invention, for mode 2, a static perception parameter adjustment and / or a dynamic perception parameter adjustment perception method is used to perform resource perception to obtain the resources for the SL-CA transmission. Optionally, the time-frequency resources corresponding to each carrier need to be sensed independently.

[0164] In one implementation, static sensing parameter adjustment is used to perform resource sensing, including one or more of the following:

[0165] During the resource sensing process, a threshold value of a channel state parameter used to monitor the resource sensing process is adjusted according to a static sensing parameter, and / or a maximum number of carriers for simultaneous resource sensing is adjusted.

[0166] Optionally, the static perception parameter includes one or more of a priority of the transmitted service and a capability of the first terminal.

[0167] The channel status parameters include one or more of pulse repetition rate PRR, bit error rate BER, channel busy rate CBR, call rate CR, collision rate and power.

[0168] Optionally, the threshold value of the threshold value of the adjusted channel state parameter and / or the maximum number of carriers for resource sensing respectively vary between a plurality of set values.

[0169] In this implementation, during the resource perception process, the perception process is controlled by static perception parameters at each carrier frequency point, wherein the static perception parameters are parameters that are less affected by the communication status during the perception process. For example, the static perception parameters include but are not limited to only the priority of the transmitted service and / or the capability of the first terminal.

[0170] Optionally, when static perception parameter adjustment is used for resource perception, the channel state parameters used to monitor the resource perception process include BER and / or CBR. During the perception process, the threshold value H of the bit error rate (Bit Error Rate, BER) or the channel busy rate (Channel Busy Ratio, CBR) is monitored. When the bit error rate or the channel busy rate exceeds the threshold value H, perception is stopped to reduce power consumption.

[0171] Specifically, in the mode 2 scenario, the resource selection algorithm is divided into two steps: 1. The terminal determines the candidate resource set, and the terminal first excludes resources according to the undetected time slots, and then excludes resources according to the detected first-order SCI; 2. The terminal selects a transmission resource from the candidate resource set.

[0172] In the embodiment of the present invention, when performing resource perception according to static perception parameters, the threshold value of the channel state parameter can be optionally adjusted according to the priority of the transmitted service, so as to reduce congestion and evenly distribute the services.

[0173] For example, when the first terminal uses CBR as the threshold value, when 10% of the RSSI of all sub-channels in the monitored resource pool exceeds the set threshold, it stops sensing and abandons the use of the resource pool. When the SL-CA transmission service involves security services, this standard is reduced to 5%.

[0174] In an embodiment of the present invention, optionally, when static perception parameter adjustment is adopted, the value of the adjusted parameter can be adjusted from a first constant value to a second constant value. For example, the threshold value H of the channel state parameter can also be adjusted as a static perception parameter. When adjusting according to the priority of the transmitted service and / or the channel environment state, the threshold value can be adjusted from H=10% to H=5%. By adopting this implementation mode, the effect of significantly reducing power consumption can be achieved to realize even distribution of services.

[0175] In another implementation, when performing resource sensing according to static sensing parameters, the maximum number N of component carriers performing resource sensing simultaneously is also adjusted according to the static sensing parameters. Limited by the UE sensing capability and power consumption, the number of carriers and frequency bands sensed simultaneously is limited, and the more the number of sensed, the greater the energy consumption. The value of N depends on the UE capability and power consumption.

[0176] For example: 4 carriers are aggregated in SL CA. Due to the limitation of UE capabilities, the system can set the maximum number of carriers for simultaneous resource sensing to N=2, that is, only 2 carriers are allowed to sense resources at the same time. Therefore, the SL terminal can only sense less than or equal to 2 carriers in each time slot, and the remaining carriers will be sensed in subsequent time slots.

[0177] This solution increases the sensing window length, and the UE will spend longer time on channel sensing, but it can significantly reduce power consumption.

[0178] In an embodiment of the present invention, one implementation method adopts dynamic sensing parameter adjustment to perform resource sensing, including one or more of the following:

[0179] During the resource sensing process, one or more of the following parameters are adjusted based on the dynamic sensing parameters:

[0180] A plurality of channel status parameters for monitoring the resource sensing process;

[0181] Threshold values ​​corresponding to the plurality of channel state parameters respectively;

[0182] weight values ​​corresponding to the plurality of channel state parameters respectively;

[0183] The maximum number of carriers that can be simultaneously resource sensed;

[0184] The first parameter in the service priority parameter and / or the weight of the channel state parameter used to monitor the resource perception process; wherein the service priority parameter is related to the first parameter and the weight, the larger the first parameter is, the higher the priority level of the service priority parameter is; the smaller the weight is, the lower the priority level of the service priority parameter is.

[0185] Optionally, the dynamic perception parameter includes one or more of the following parameters:

[0186] The type of traffic being transmitted;

[0187] The priority of the traffic being transmitted;

[0188] Current channel environment;

[0189] current power consumption of the first terminal;

[0190] a current transmission power of the first terminal;

[0191] The transmission status of the transmitted service.

[0192] With this implementation, during the resource sensing process, the sensing process is controlled by a dynamic sensing parameter at each carrier frequency point, wherein the dynamic sensing parameter is a parameter that is greatly affected by the communication status during the sensing process.

[0193] Optionally, when dynamic perception parameter adjustment is used for resource perception, the threshold value of the adjusted channel state parameter and / or the maximum number of carriers for resource perception changes dynamically according to the dynamic perception parameter, that is, the adjustment change value changes dynamically, rather than changing between multiple set fixed values.

[0194] In one implementation method, when resource sensing is performed at each carrier frequency point through dynamic sensing parameters, the dynamic sensing parameters enable the threshold value of the channel state parameter used to monitor the resource sensing process to be dynamically adjusted, for example, automatically adjusted according to the pulse repetition rate PRR (Pulse Repetition Rate), bit error rate BER (Bit Error Rate), channel busy rate CBR (Channel Busy Ratio) or call rate CR (Calling Rate), and can also be adjusted based on the collision rate or power, and is no longer constant.

[0195] Optionally, the first terminal can simultaneously use PRR, BER, CBR, CR, average collision rate and received signal power (e.g., RSRP) as references, and set one or more threshold values ​​that change in real time. When all indicators exceed the threshold, the resource pool is abandoned; when some indicators exceed the threshold, listening continues; when all indicators are lower than the threshold, the resource pool can be selected to transmit SL-CA.

[0196] For example, an SL terminal senses the resource pool and selects six indicators, namely PRR, BER, CBR, CR, average collision rate and RSRP, as thresholds. The threshold values ​​are H1 to H6, where the values ​​of H1 to H6 can change according to the channel environment changes (such as SINR, etc.). When all indicators are lower than the threshold values, the UE occupies the time-frequency resources; when one or two of the six indicators are higher than the threshold values, the UE continues to listen; when three or more of the six indicators are higher than the threshold values, the UE abandons the time-frequency resources.

[0197] Dynamic adjustment requires a longer resource perception window and higher power consumption, but its advantage is that available time and frequency resources can be quickly acquired.

[0198] In another embodiment, the channel state parameters used to monitor the resource sensing process may occupy different weights. In the resource sensing process, the weights of multiple channel state parameters may be adjusted according to the dynamic sensing parameters. For example, the weights of multiple channel state parameters may be based on the transmitted service or the current channel environment. For example, in a channel with a complex electromagnetic environment, the noise power requires the terminal to increase the transmission power. At this time, the channel state parameters may include RSRP, and RSRP may occupy a larger weight.

[0199] For example, an SL terminal performs resource perception on the resource pool, selects PRR, BER, CBR, CR, average collision rate and RSRP as channel state parameters of the resource perception process, and determines the threshold value of each channel state parameter. When encountering a complex electromagnetic environment, the weight of RSRP is increased. According to this rule, when the RSRP value is higher than the dynamic threshold H6, the resource is abandoned. When the RSRP value is lower than the dynamic threshold H6, other indicators are referred to.

[0200] In another implementation, in addition to adjusting the threshold value H of the channel state parameter in real time according to the dynamic sensing parameter, the maximum number N of component carriers that simultaneously sense resources can also be adjusted. Limited by the UE sensing capability, the number of carriers and frequency bands that it senses simultaneously is limited. The more the number of sensed carriers, the greater the energy consumption. The value of N depends on the UE capability and power consumption.

[0201] The N of the dynamic adjustment scheme can change in real time according to the current power consumption of the UE. When the current power consumption of the UE is high, the N value is smaller to reduce the resource-aware power consumption. When the current power consumption of the UE is low, the N value is larger to ensure the resource-aware capability.

[0202] In addition to the constraints such as UE capability and power consumption, indicators such as PRR, BER, CBR, CR, average collision rate and RSRP (corresponding to threshold values ​​H1 to H6 respectively) can also affect the value of N.

[0203] For example, when indicators such as RSRP are high, it means that the UE needs to increase the transmit power to ensure stable transmission, so the power allocated by the UE for perception will be lower, and the value of N should be reduced.

[0204] In addition, in the SL perception scheme, the available carriers after perception will be delegated to the MAC layer for scheduling and then transmission, but the transmission power must be less than the total system power. When the number of carriers scheduled by the MAC layer at the same time is too large, the transmission power will be greater than the total power. At this time, the MAC will abandon the transmission of some carriers in order of priority, resulting in waste of perception results and power waste. In order to avoid the above situation, the value of N should take into account the ratio of the current transmission power to the total power. When the transmission power is close to or exceeds the total power, the value of N should be reduced to reduce the number of carriers perceived at the same time, thereby reducing the number of carriers scheduled by the MAC layer at the same time, and the transmission power will also be reduced.

[0205] For example, a threshold may be set such that when the transmission power reaches 90% of the total system power (this value may vary but should be less than or equal to 100%), the value of N is reduced to half of the original value until the ratio returns to below the threshold.

[0206] In another implementation mode, the service priority parameters may be adjusted according to the dynamic perception parameters. By adjusting the service priority parameters, the problem that a certain service cannot be sent for a long time may be avoided.

[0207] Specifically, since service priority is affected by various indicators (such as service category, H1-H6 parameters, etc.), some low-priority services may never be transmitted. Therefore, a new priority parameter can be designed with fairness as the core to avoid the above problem.

[0208] Optionally, the service priority parameter K is expressed as:

[0209] Wherein, T is a first parameter used to indicate the scheduled (perceived) time of the service, and H is a weight representing one of the channel state parameters, wherein the weight is affected by the channel environment but has nothing to do with the service priority.

[0210] When one of the service data has not been sent for a long time, the T value is increased, and the weight of each channel state parameter is only affected by the channel environment. Therefore, the larger the T value is, the smaller the K value is, and the higher the priority level corresponding to the corresponding service priority parameter is. Correspondingly, the weight of the channel state parameter is reduced, that is, when it becomes smaller, the smaller the K value is, and the higher the priority level corresponding to the corresponding service priority parameter is, thereby avoiding the problem that a certain service cannot be sent for a long time due to priority restrictions.

[0211] In the embodiment of the present invention, the perception mode of static perception parameter adjustment and dynamic perception parameter adjustment is adopted to perform resource perception, including:

[0212] In the resource sensing process, according to preset parameters, one of the sensing modes of static sensing parameter adjustment and dynamic sensing parameter adjustment is selected to perform resource sensing.

[0213] Optionally, the preset parameter state includes one or more of the following:

[0214] The priority of the traffic being transmitted;

[0215] capabilities of the first terminal;

[0216] power consumption of the first terminal.

[0217] By adopting this implementation mode, a balance between ensuring service transmission and reducing power consumption is achieved by combining static perception parameter adjustment with dynamic perception parameter adjustment.

[0218] Specifically, you can first select one of the perception methods of static perception parameter adjustment and dynamic perception parameter adjustment for resource perception based on preset parameters. For example, you can determine whether to select static perception parameter adjustment or dynamic perception parameter adjustment based on business priority indicators.

[0219] Specifically, after determining static perception parameter adjustment or dynamic perception parameter adjustment, in the resource perception process, the corresponding parameters can be adjusted according to the determined method to perform resource perception. For example, the use of static perception parameter adjustment or dynamic perception parameter adjustment can be determined according to the service priority index, or static perception parameter adjustment or dynamic perception parameter adjustment can be selected according to the UE energy consumption level, and then the threshold value of the channel state parameter is adjusted according to parameters such as terminal power.

[0220] For example, for low-power UE, it is unable to bear the power consumption caused by long-term resource perception. Therefore, when transmitting high-priority services, the dynamically adjusted resource perception solution is preferred, and when transmitting low-priority services, the statically adjusted resource perception solution is preferred.

[0221] It should be noted that the above-mentioned resource perception method using static perception parameter adjustment and / or dynamic perception parameter adjustment is only for illustration and is not limited thereto. Each implementation method will not be described with examples separately here.

[0222] One embodiment of the present invention further provides a carrier aggregation method, which is performed by a second terminal, such as Figure 7 As shown, the method includes:

[0223] S710, obtaining SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0224] By adopting the method described in the embodiment of the present invention, the second terminal can obtain the SL-CA information sent by the first terminal through SL-CA transmission by using one of the aggregation modes of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation, thereby realizing SL-CA transmission between the first terminal and the second terminal.

[0225] Optionally, the carrier aggregation method further comprises:

[0226] sending a first SCI signaling to the first terminal, where the first SCI signaling includes a transmission resource indicated to the first terminal; and / or

[0227] Sending PC5-RRC signaling to the first terminal, where the PC5-RRC signaling includes allocated resources allocated to the first terminal; and sending second SCI signaling to the first terminal, where the second SCI signaling is used to indicate transmission resources in the allocated resources;

[0228] Wherein, the transmission resources are used for resource perception.

[0229] One embodiment of the present invention further provides a carrier aggregation method, which is performed by a network device, such as Figure 8 As shown, the method includes:

[0230] S810: Send resources for performing direct link carrier aggregation (SL-CA) transmission to a first terminal.

[0231] By adopting the method described in the embodiment of the present invention, resources for SL-CA transmission are sent to the first terminal through a network device, so that the first terminal can perform SL-CA transmission and send SL-CA information through one of the aggregation methods of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation, thereby realizing SL-CA transmission between the first terminal and the second terminal.

[0232] Optionally, the carrier aggregation method further comprises:

[0233] receiving a first request sent by the first terminal; wherein the first request includes carrier information for SL-CA transmission;

[0234] The sending of the resource to the first terminal includes:

[0235] According to the first request, the resource is sent to the first terminal via the carrier corresponding to the carrier information.

[0236] Optionally, in the carrier aggregation method, sending the resource to the first terminal includes one or more of the following:

[0237] Sending the resource to the first terminal through first downlink control information DCI; and / or

[0238] Transmission resources are allocated to the first terminal through RRC signaling, and the resources in the transmission resources are indicated to the first terminal through second DCI signaling.

[0239] One embodiment of the present invention further provides a terminal, wherein the terminal is a first terminal, such as Fig. 9 As shown, it includes a memory 910, a transceiver 920, and a processor 930:

[0240] The memory 910 is used to store computer programs; the transceiver 920 is used to send and receive data under the control of the processor 930; the processor 930 is used to read the computer program in the memory and perform the following operations:

[0241] Acquire resources for performing direct link carrier aggregation SL-CA transmission;

[0242] After occupying the resources, SL-CA transmission is performed through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0243] Optionally, in the terminal, the processor 930 reads the computer program in the memory, and the acquisition of the resource for the SL-CA transmission includes at least one of the following:

[0244] Acquire the resources transmitted by the SL-CA as instructed by the network device;

[0245] The resource sensing is performed by adopting a sensing method of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to obtain the resource of the SL-CA transmission.

[0246] Optionally, in the terminal, the processor 930 reads the computer program in the memory and further performs the following operations:

[0247] Synchronization is performed through the direct link synchronization signal block S-SSB to determine the synchronization resources for SL-CA transmission.

[0248] Optionally, the terminal, wherein the processor 930 reads the computer program in the memory, and when SL-CA transmission is performed through an aggregation mode of in-band continuous carrier aggregation or in-band non-continuous carrier aggregation, synchronization is performed through a direct link synchronization signal block S-SSB, including:

[0249] Synchronization is performed through S-SSB in the same frequency band as the carriers used for carrier aggregation.

[0250] Optionally, the terminal, wherein the processor 930 reads the computer program in the memory, and when SL-CA transmission is performed by an aggregation mode of inter-band non-continuous carrier aggregation, synchronization is performed by the S-SSB, including:

[0251] S-SSB is used to synchronize multiple carriers in different frequency bands used for carrier aggregation.

[0252] Optionally, in the terminal, the processor 930 reads the computer program in the memory, and after synchronizing respectively in different frequency bands of multiple carriers used for carrier aggregation through S-SSB, further performs the following operations:

[0253] Obtain synchronization resources corresponding to each frequency band;

[0254] Among them, sending SL-CA information includes:

[0255] According to the synchronization resources of each frequency band, SL-CA information is sent through each frequency band respectively.

[0256] Optionally, in the terminal, the processor 930 reads the computer program in the memory and further performs the following operations:

[0257] Sending a first request to the network device; wherein the first request includes carrier information for requesting SL-CA transmission;

[0258] The obtaining of the resources transmitted by the SL-CA as instructed by the network device includes:

[0259] The resource is received, which is sent by the network device through the carrier corresponding to the carrier information according to the first request.

[0260] Optionally, in the terminal, the processor 930 reads the computer program in the memory and, under the instruction of the network device, obtains the resource transmitted by the SL-CA, including:

[0261] Acquire the resource indicated by the network device through the first downlink control information DCI; and / or

[0262] Acquire the transmission resources allocated by the network device to the first terminal through RRC signaling, and acquire the resources in the transmission resources indicated by the network device through second DCI signaling.

[0263] Optionally, in the terminal, the processor 930 reads the computer program in the memory, and performs the following operations when performing resource sensing by adopting a sensing mode of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to acquire the resources transmitted by the SL-CA:

[0264] Acquire the transmission resource indicated by the second terminal to the first terminal through the first SCI signaling; and / or

[0265] Acquire allocated resources allocated by the second terminal to the first terminal through PC5-RRC signaling, and acquire transmission resources in the allocated resources indicated by the second terminal through second SCI signaling;

[0266] Wherein, the transmission resources are used for resource perception.

[0267] Optionally, in the terminal, the processor 930 reads the computer program in the memory and uses static sensing parameter adjustment to perform resource sensing, including one or more of the following:

[0268] During the resource sensing process, a threshold value of a channel state parameter used to monitor the resource sensing process is adjusted according to a static sensing parameter, and / or a maximum number of carriers for simultaneous resource sensing is adjusted.

[0269] Optionally, in the terminal, the static perception parameter includes one or more of the priority of the transmitted service and the capability of the first terminal.

[0270] Optionally, in the terminal, the processor 930 reads the computer program in the memory and uses dynamic sensing parameter adjustment to perform resource sensing, including one or more of the following:

[0271] During the resource sensing process, one or more of the following parameters are adjusted based on the dynamic sensing parameters:

[0272] A plurality of channel status parameters for monitoring the resource sensing process;

[0273] Threshold values ​​corresponding to the plurality of channel state parameters respectively;

[0274] weight values ​​corresponding to the plurality of channel state parameters respectively;

[0275] The maximum number of carriers that can be simultaneously resource sensed;

[0276] The first parameter in the service priority parameter and / or the weight of the channel state parameter used to monitor the resource perception process; wherein the service priority parameter is related to the first parameter and the weight, the larger the first parameter is, the higher the priority level of the service priority parameter is; the smaller the weight is, the higher the priority level of the service priority parameter is.

[0277] Optionally, in the terminal, the dynamic perception parameter includes one or more of the following parameters:

[0278] The type of traffic being transmitted;

[0279] The priority of the traffic being transmitted;

[0280] Current channel environment;

[0281] current power consumption of the first terminal;

[0282] a current transmission power of the first terminal;

[0283] The transmission status of the transmitted service.

[0284] Optionally, in the terminal, the processor 930 reads the computer program in the memory, and performs resource perception using a perception method of static perception parameter adjustment and a dynamic perception parameter adjustment, including:

[0285] In the resource sensing process, according to preset parameters, one of the sensing modes of static sensing parameter adjustment and dynamic sensing parameter adjustment is selected to perform resource sensing.

[0286] Optionally, in the terminal, the preset parameter state includes one or more of the following:

[0287] The priority of the traffic being transmitted;

[0288] capabilities of the first terminal;

[0289] power consumption of the first terminal.

[0290] Optionally, the terminal, wherein the channel state parameters include one or more of pulse repetition rate PRR, bit error rate BER, channel busy rate CBR, call rate CR, collision rate and power.

[0291] Among them, Fig. 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 930 and various circuits of memory represented by memory 910 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, 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 920 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including transmission media such as wireless channels, wired channels, and optical cables. For different user devices, the user interface 940 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.

[0292] The processor 930 is responsible for managing the bus architecture and general processing, and the memory 910 can store data used by the processor 930 when performing operations.

[0293] Optionally, the processor 930 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0294] 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.

[0295] One embodiment of the present invention further provides a terminal, wherein the terminal is a second terminal, such as Fig.10 As shown, it includes a memory 1001, a transceiver 1002, and a processor 1003:

[0296] The memory 1001 is used to store computer programs; the transceiver 1002 is used to send and receive data under the control of the processor 1003; the processor 1003 is used to read the computer program in the memory 1001 and perform the following operations:

[0297] SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation is obtained.

[0298] Optionally, in the terminal, the processor 1003 reads the computer program in the memory 1001 and is further configured to perform the following operations:

[0299] sending a first SCI signaling to the first terminal, where the first SCI signaling includes a transmission resource indicated to the first terminal; and / or

[0300] Sending PC5-RRC signaling to the first terminal, where the PC5-RRC signaling includes allocated resources allocated to the first terminal; and sending second SCI signaling to the first terminal, where the second SCI signaling is used to indicate transmission resources in the allocated resources;

[0301] Wherein, the transmission resources are used for resource perception.

[0302] 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 1030 and various circuits of memory represented by memory 1010 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, 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 1020 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including transmission media such as wireless channels, wired channels, and optical cables. For different user devices, the user interface 1040 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.

[0303] The processor 1030 is responsible for managing the bus architecture and general processing, and the memory 1010 can store data used by the processor 1030 when performing operations.

[0304] Optionally, the processor 1030 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0305] 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.

[0306] One embodiment of the present invention further provides a network device, such as Fig.11 As shown, it includes a memory 1101, a transceiver 1102, and a processor 1103:

[0307] The memory 1101 is used to store computer programs; the transceiver 1102 is used to send and receive data under the control of the processor 1103; the processor 1103 is used to read the computer program in the memory 1101 and perform the following operations:

[0308] Sending resources for performing direct link carrier aggregation (SL-CA) transmission to the first terminal.

[0309] Optionally, in the network device, the processor 1103 reads the computer program in the memory 1101 and further performs the following operations:

[0310] receiving a first request sent by the first terminal; wherein the first request includes carrier information for SL-CA transmission;

[0311] The sending of the resource to the first terminal includes:

[0312] According to the first request, the resource is sent to the first terminal via the carrier corresponding to the carrier information.

[0313] Optionally, in the network device, the processor 1103 reads the computer program in the memory 1101 and sends the resource to the first terminal, including one or more of the following:

[0314] Sending the resource to the first terminal through first downlink control information DCI; and / or

[0315] Transmission resources are allocated to the first terminal through RRC signaling, and the resources in the transmission resources are indicated to the first terminal through second DCI signaling.

[0316] 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 1103 and various circuits of memory represented by memory 1101 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 1102 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor x10 is responsible for managing the bus architecture and general processing, and the memory 1101 may store data used by the processor 1103 when performing operations.

[0317] The processor 1103 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.

[0318] One embodiment of the present invention further provides a carrier aggregation device, which is applied to a first terminal, such as Fig.12 As shown, the device comprises:

[0319] The resource acquisition unit 1201 is used to acquire resources for performing direct link carrier aggregation SL-CA transmission;

[0320] The transmission unit 1202 is configured to perform SL-CA transmission by using one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation after occupying the resources.

[0321] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 acquires the resource for the SL-CA transmission, including at least one of the following:

[0322] Acquire the resources transmitted by the SL-CA as instructed by the network device;

[0323] The resource sensing is performed by adopting a sensing method of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to obtain the resource of the SL-CA transmission.

[0324] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 is further configured to:

[0325] Synchronization is performed through the direct link synchronization signal block S-SSB to determine the synchronization resources for SL-CA transmission.

[0326] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 performs synchronization through a direct link synchronization signal block S-SSB when performing SL-CA transmission through an aggregation mode of intra-band continuous carrier aggregation or intra-band non-continuous carrier aggregation, including:

[0327] Synchronization is performed through S-SSB in the same frequency band as the carriers used for carrier aggregation.

[0328] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 performs synchronization through the S-SSB when performing SL-CA transmission through an aggregation mode of inter-band non-continuous carrier aggregation, including:

[0329] S-SSB is used to synchronize multiple carriers in different frequency bands used for carrier aggregation.

[0330] Optionally, in the carrier aggregation device, after the resource acquisition unit 1201 performs synchronization on different frequency bands of multiple carriers used for carrier aggregation through S-SSB, the resource acquisition unit 1201 is further configured to:

[0331] Obtain synchronization resources corresponding to each frequency band;

[0332] The transmission unit 1202 sends the SL-CA information, including:

[0333] According to the synchronization resources of each frequency band, SL-CA information is sent through each frequency band respectively.

[0334] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 is further configured to:

[0335] Sending a first request to the network device; wherein the first request includes carrier information for requesting SL-CA transmission;

[0336] The resource acquisition unit 1201 is instructed by the network device to acquire the resources transmitted by the SL-CA, including:

[0337] The resource is received, which is sent by the network device through the carrier corresponding to the carrier information according to the first request.

[0338] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 is instructed by a network device to acquire the resources for the SL-CA transmission, including:

[0339] Acquire the resource indicated by the network device through the first downlink control information DCI; and / or

[0340] Acquire the transmission resources allocated by the network device to the first terminal through RRC signaling, and acquire the resources in the transmission resources indicated by the network device through second DCI signaling.

[0341] Optionally, in the carrier aggregation device, when a static perception parameter adjustment and / or dynamic perception parameter adjustment perception mode is used to perform resource perception and obtain the resources for the SL-CA transmission, the resource acquisition unit 1201 is further used to:

[0342] Acquire the transmission resource indicated by the second terminal to the first terminal through the first SCI signaling; and / or

[0343] Acquire allocated resources allocated by the second terminal to the first terminal through PC5-RRC signaling, and acquire transmission resources in the allocated resources indicated by the second terminal through second SCI signaling;

[0344] Wherein, the transmission resources are used for resource perception.

[0345] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 uses static sensing parameter adjustment to perform resource sensing, including one or more of the following:

[0346] During the resource sensing process, a threshold value of a channel state parameter used to monitor the resource sensing process is adjusted according to a static sensing parameter, and / or a maximum number of carriers for simultaneous resource sensing is adjusted.

[0347] Optionally, in the carrier aggregation device, the static perception parameter includes one or more of the priority of the transmitted service and the capability of the first terminal.

[0348] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 uses dynamic sensing parameter adjustment to perform resource sensing, including one or more of the following:

[0349] During the resource sensing process, one or more of the following parameters are adjusted based on the dynamic sensing parameters:

[0350] A plurality of channel status parameters for monitoring the resource sensing process;

[0351] Threshold values ​​corresponding to the plurality of channel state parameters respectively;

[0352] weight values ​​corresponding to the plurality of channel state parameters respectively;

[0353] The maximum number of carriers that can be simultaneously resource sensed;

[0354] The first parameter in the service priority parameter and / or the weight of the channel state parameter used to monitor the resource perception process; wherein the service priority parameter is related to the first parameter and the weight, the larger the first parameter is, the higher the priority level of the service priority parameter is; the smaller the weight is, the higher the priority level of the service priority parameter is.

[0355] Optionally, in the carrier aggregation device, the dynamic perception parameter includes one or more of the following parameters:

[0356] The type of traffic being transmitted;

[0357] The priority of the traffic being transmitted;

[0358] Current channel environment;

[0359] current power consumption of the first terminal;

[0360] a current transmission power of the first terminal;

[0361] The transmission status of the transmitted service.

[0362] Optionally, in the carrier aggregation device, the resource acquisition unit 1201 performs resource sensing using a sensing method of static sensing parameter adjustment and a sensing method of dynamic sensing parameter adjustment, including:

[0363] In the resource sensing process, according to preset parameters, one of the sensing modes of static sensing parameter adjustment and dynamic sensing parameter adjustment is selected to perform resource sensing.

[0364] Optionally, in the carrier aggregation device, the preset parameter state includes one or more of the following:

[0365] The priority of the traffic being transmitted;

[0366] capabilities of the first terminal;

[0367] power consumption of the first terminal.

[0368] Optionally, in the carrier aggregation device, the channel state parameters include one or more of pulse repetition rate PRR, bit error rate BER, channel busy rate CBR, call rate CR, collision rate and power.

[0369] One embodiment of the present invention further provides a carrier aggregation device, which is applied to a second terminal, such as Fig.13 As shown, the device comprises:

[0370] The information acquisition unit 1301 is used to acquire SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

[0371] Optionally, the device further comprises:

[0372] A signaling sending unit 1302 is configured to send a first SCI signaling to the first terminal, where the first SCI signaling includes a transmission resource indicated to the first terminal; and / or

[0373] Used to send PC5-RRC signaling to the first terminal, where the PC5-RRC signaling includes allocated resources allocated to the first terminal; and send second SCI signaling to the first terminal, where the second SCI signaling is used to indicate transmission resources in the allocated resources;

[0374] Wherein, the transmission resources are used for resource perception.

[0375] One embodiment of the present invention further provides a carrier aggregation device, which is applied to a network device, such as Fig.14 As shown, the device comprises:

[0376] The resource sending unit 1401 is configured to send resources for performing direct link carrier aggregation SL-CA transmission to the first terminal.

[0377] Optionally, the carrier aggregation device further comprises:

[0378] The request receiving unit 1402 is configured to receive a first request sent by the first terminal; wherein the first request includes carrier information for SL-CA transmission;

[0379] The resource sending unit 1401 sends the resource to the first terminal, including:

[0380] According to the first request, the resource is sent to the first terminal via the carrier corresponding to the carrier information.

[0381] Optionally, in the carrier aggregation device, the resource sending unit 1401 sends the resource to the first terminal, including one or more of the following:

[0382] Sending the resource to the first terminal through first downlink control information DCI; and / or

[0383] Transmission resources are allocated to the first terminal through RRC signaling, and the resources in the transmission resources are indicated to the first terminal through second DCI signaling.

[0384] 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, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0385] 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.

[0386] 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.

[0387] One embodiment of the present invention further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the carrier aggregation method as described in any one of the above items.

[0388] The processor-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 (NANDFLASH), solid-state drive (SSD)), etc.

[0389] 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.

[0390] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes 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 generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0391] 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 an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0392] 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 executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0393] 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 carrier aggregation method, characterized in that: The method is performed by a first terminal and includes: Acquire resources for performing direct link carrier aggregation SL-CA transmission; After occupying the resources, SL-CA transmission is performed through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

2. The carrier aggregation method according to claim 1, characterized in that: Acquiring the resource transmitted by the SL-CA includes at least one of the following: Acquire the resources transmitted by the SL-CA as instructed by the network device; The resource sensing is performed by adopting a sensing method of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to obtain the resource of the SL-CA transmission.

3. The carrier aggregation method according to claim 1, characterized in that: The method further comprises: Synchronization is performed through the direct link synchronization signal block S-SSB to determine the synchronization resources for SL-CA transmission.

4. The carrier aggregation method according to claim 3, characterized in that: In the case of SL-CA transmission through intra-band continuous carrier aggregation or intra-band non-contiguous carrier aggregation, synchronization is performed through the direct link synchronization signal block S-SSB, including: Synchronization is performed through S-SSB in the same frequency band as the carriers used for carrier aggregation.

5. The carrier aggregation method according to claim 3, characterized in that: In the case where SL-CA transmission is performed by an aggregation mode of inter-band non-continuous carrier aggregation, synchronization is performed by the S-SSB, including: S-SSB is used to synchronize multiple carriers in different frequency bands used for carrier aggregation.

6. The carrier aggregation method according to claim 5, characterized in that: After synchronizing respectively in different frequency bands of multiple carriers used for carrier aggregation through S-SSB, the method further includes: Obtain synchronization resources corresponding to each frequency band; Among them, sending SL-CA information includes: According to the synchronization resources of each frequency band, SL-CA information is sent through each frequency band respectively.

7. The carrier aggregation method according to claim 2, characterized in that: The method further comprises: Sending a first request to the network device; wherein the first request includes carrier information for requesting SL-CA transmission; The obtaining of the resources transmitted by the SL-CA as instructed by the network device includes: The resource is received, which is sent by the network device through the carrier corresponding to the carrier information according to the first request.

8. The carrier aggregation method according to claim 2, characterized in that: The network device instructs the user to obtain the resource transmitted by the SL-CA, including: Acquire the resource indicated by the network device through the first downlink control information DCI; and / or Acquire the transmission resources allocated by the network device to the first terminal through RRC signaling, and acquire the resources in the transmission resources indicated by the network device through second DCI signaling.

9. The carrier aggregation method according to claim 2, characterized in that: In the case where a static perception parameter adjustment and / or a dynamic perception parameter adjustment perception mode is used to perform resource perception and obtain the resources transmitted by the SL-CA, the method further includes: Acquire the transmission resource indicated by the second terminal to the first terminal through the first SCI signaling; and / or Acquire allocated resources allocated by the second terminal to the first terminal through PC5-RRC signaling, and acquire transmission resources in the allocated resources indicated by the second terminal through second SCI signaling; Wherein, the transmission resources are used for resource perception.

10. The carrier aggregation method according to claim 2, characterized in that: Use static perception parameter adjustment for resource perception, including one or more of the following: During the resource sensing process, a threshold value of a channel state parameter used to monitor the resource sensing process is adjusted according to a static sensing parameter, and / or a maximum number of carriers for simultaneous resource sensing is adjusted.

11. The carrier aggregation method according to claim 10, characterized in that: The static perception parameters include one or more of the priority of the transmitted service and the capability of the first terminal.

12. The carrier aggregation method according to claim 2, characterized in that: Use dynamic perception parameter adjustment for resource perception, including one or more of the following: During the resource sensing process, one or more of the following parameters are adjusted based on the dynamic sensing parameters: A plurality of channel status parameters for monitoring the resource sensing process; Threshold values ​​corresponding to the plurality of channel state parameters respectively; weight values ​​corresponding to the plurality of channel state parameters respectively; The maximum number of carriers that can be simultaneously resource sensed; The first parameter in the service priority parameter and / or the weight of the channel state parameter used to monitor the resource perception process; wherein the service priority parameter is related to the first parameter and the weight, the larger the first parameter is, the higher the priority level of the service priority parameter is; the smaller the weight is, the higher the priority level of the service priority parameter is.

13. The carrier aggregation method according to claim 12, characterized in that: The dynamic perception parameters include one or more of the following parameters: The type of traffic being transmitted; The priority of the traffic being transmitted; Current channel environment; current power consumption of the first terminal; a current transmission power of the first terminal; The transmission status of the transmitted service.

14. The carrier aggregation method according to claim 2, characterized in that: The resource perception is performed by using static perception parameter adjustment and dynamic perception parameter adjustment, including: In the resource sensing process, according to preset parameters, one of the sensing modes of static sensing parameter adjustment and dynamic sensing parameter adjustment is selected to perform resource sensing.

15. The carrier aggregation method according to claim 14, characterized in that: The preset parameter state includes one or more of the following: The priority of the traffic being transmitted; capabilities of the first terminal; power consumption of the first terminal.

16. The carrier aggregation method according to claim 10 or 12, characterized in that: The channel status parameters include one or more of pulse repetition rate PRR, bit error rate BER, channel busy rate CBR, call rate CR, collision rate and power.

17. A carrier aggregation method, characterized in that: The method is performed by the second terminal, and includes: SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation is obtained.

18. The carrier aggregation method according to claim 17, characterized in that: The method further comprises: sending a first SCI signaling to the first terminal, where the first SCI signaling includes a transmission resource indicated to the first terminal; and / or Sending PC5-RRC signaling to the first terminal, where the PC5-RRC signaling includes allocated resources allocated to the first terminal; and sending second SCI signaling to the first terminal, where the second SCI signaling is used to indicate transmission resources in the allocated resources; Wherein, the transmission resources are used for resource perception.

19. A carrier aggregation method, characterized in that: Executed by a network device, the method includes: Sending resources for performing direct link carrier aggregation (SL-CA) transmission to the first terminal.

20. The carrier aggregation method according to claim 19, characterized in that: The method further comprises: receiving a first request sent by the first terminal; wherein the first request includes carrier information for SL-CA transmission; The sending of the resource to the first terminal includes: According to the first request, the resource is sent to the first terminal via the carrier corresponding to the carrier information.

21. The carrier aggregation method according to claim 19, characterized in that: Sending the resource to the first terminal includes one or more of the following: Sending the resource to the first terminal through first downlink control information DCI; and / or Transmission resources are allocated to the first terminal through RRC signaling, and the resources in the transmission resources are indicated to the first terminal through second DCI signaling.

22. A terminal, wherein: The terminal is a first terminal, characterized in that it includes a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Acquire resources for performing direct link carrier aggregation SL-CA transmission; After occupying the resources, SL-CA transmission is performed through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

23. The terminal according to claim 22, characterized in that: The processor reading the computer program in the memory to obtain the resource transmitted by the SL-CA includes at least one of the following: Acquire the resources transmitted by the SL-CA as instructed by the network device; The resource sensing is performed by adopting a sensing method of static sensing parameter adjustment and / or dynamic sensing parameter adjustment to obtain the resource of the SL-CA transmission.

24. The terminal according to claim 23, characterized in that The processor reads the computer program in the memory and uses static sensing parameter adjustment to perform resource sensing, including one or more of the following: During the resource sensing process, a threshold value of a channel state parameter used to monitor the resource sensing process is adjusted according to a static sensing parameter, and / or a maximum number of carriers for simultaneous resource sensing is adjusted.

25. The terminal according to claim 23, characterized in that The processor reads the computer program in the memory and uses dynamic sensing parameter adjustment to perform resource sensing, including one or more of the following: During the resource sensing process, one or more of the following parameters are adjusted based on the dynamic sensing parameters: A plurality of channel status parameters for monitoring the resource sensing process; Threshold values ​​corresponding to the plurality of channel state parameters respectively; weight values ​​corresponding to the plurality of channel state parameters respectively; The maximum number of carriers that can be simultaneously resource sensed; The first parameter in the service priority parameter and / or the weight of the channel state parameter used to monitor the resource perception process; wherein the service priority parameter is related to the first parameter and the weight, the larger the first parameter is, the higher the priority level of the service priority parameter is; the smaller the weight is, the higher the priority level of the service priority parameter is.

26. The terminal according to claim 23, characterized in that The processor reads the computer program in the memory, and uses static perception parameter adjustment and dynamic perception parameter adjustment to perform resource perception, including: In the resource sensing process, according to preset parameters, one of the sensing modes of static sensing parameter adjustment and dynamic sensing parameter adjustment is selected to perform resource sensing.

27. A terminal, wherein: The terminal is a second terminal, characterized in that it includes a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation is obtained.

28. A network device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending resources for performing direct link carrier aggregation (SL-CA) transmission to the first terminal.

29. A carrier aggregation device, characterized in that: Applied to a first terminal, the device includes: A resource acquisition unit, used to acquire resources for performing direct link carrier aggregation SL-CA transmission; The transmission unit is used to perform SL-CA transmission through one of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation after occupying the resources.

30. A carrier aggregation device, characterized in that: Applied to a second terminal, the device includes: The information acquisition unit is used to acquire SL-CA information sent by the first terminal after performing direct link carrier aggregation SL-CA transmission through one of the aggregation modes of intra-band continuous carrier aggregation, intra-band non-continuous carrier aggregation and inter-band non-continuous carrier aggregation.

31. A carrier aggregation device, characterized in that: Applied to network equipment, the device comprises: The resource sending unit is used to send resources used for performing direct link carrier aggregation SL-CA transmission to the first terminal.

32. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the carrier aggregation method according to any one of claims 1 to 21.

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