Synchronous resource allocation method, device, user equipment, and storage medium

Abstract

The present application discloses a synchronization resource allocation method, an apparatus, a user equipment and a storage medium. The synchronization resource allocation method of an embodiment of the present application includes a step of a UE determining a target allocation parameter, the target allocation parameter being used for transmitting synchronization resources in at least two carriers, the target allocation parameter including at least one of target time information and target interval information, the target time information is for indicating a target time, the target interval information including at least one of an interval of a target time and an interval of a synchronization resource, the target time including at least a transmission time of the synchronization resource, and at least a part of the allocation parameters of the synchronization resources in the at least two carriers are the same.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application filed in China on April 25, 2021, bearing application number 202110450474.6, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communication technology, and specifically to a synchronized resource allocation method, apparatus, user equipment and storage medium. [Background technology]

[0003] In New Radio (NR) sidelink (SL) scenarios, when multiple component carriers (CCs) are used for carrier aggregation (CA), the subcarrier spacing (SCS) and transmission patterns for different CCs may differ, resulting in misalignment of the synchronization resources for each CC. This results in high synchronization signal occupancy in the time domain and low resource utilization. Furthermore, misalignment of the synchronization resources for each CC may result in collisions between synchronization signals and other signal transmissions, affecting the reliability of sidelink services. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present application provide a synchronization resource allocation method, device, user equipment, and storage medium that can solve the problem of misaligned locations of synchronization resources in multiple CCs affecting the reliability of sidelink services. [Means for solving the problem]

[0005] In a first aspect, there is provided a synchronization resource allocation method including a step in which a user equipment (UE) determines target allocation parameters, the target allocation parameters being used for transmitting synchronization resources on at least two carriers, the target allocation parameters including at least one of target time information and target interval information, the target time information being for indicating a target time, the target interval information including at least one of an interval of the target time and an interval of the synchronization resources, the target time including at least a transmission time of the synchronization resources, and at least a part of the allocation parameters of the synchronization resources on the at least two carriers being the same.

[0006] In a second aspect, there is provided a synchronization resource allocation device including a determination module, wherein the determination module is for determining a target allocation parameter used for transmitting synchronization resources on at least two carriers, the target allocation parameter including at least one of target time information and target interval information, the target time information for indicating a target time, the target interval information including at least one of an interval of the target time and an interval of the synchronization resources, the target time including at least a time for transmitting the synchronization resources, and the allocation parameters of the synchronization resources on the at least two carriers are at least partially the same.

[0007] In a third aspect, there is provided a UE including a processor, a memory, and a program or command stored in the memory and executable by the processor, wherein when the program or command is executed by the processor, steps of the method according to the first aspect are implemented.

[0008] In a fourth aspect, there is provided a UE comprising: a processor and a communication interface, wherein the processor is configured to determine a target placement parameter, the target placement parameter being used for transmitting synchronization resources on at least two carriers; the target placement parameter including at least one of target time information and target interval information, the target time information being configured to indicate a target time, the target interval information including at least one of an interval of the target time and an interval of the synchronization resources, the target time including a time for transmitting at least the synchronization resources, and at least some of the placement parameters of the synchronization resources on the at least two carriers being the same.

[0009] In a fifth aspect, there is provided a readable storage medium having stored thereon a program or commands which, when executed by a processor, effect the steps of the method according to the first aspect.

[0010] In a sixth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled together, the processor executing a program or command to implement the method described in the first aspect.

[0011] In a seventh aspect, there is provided a computer program / program product stored on a non-transitory storage medium and configured to implement the steps of the synchronous resource allocation method according to the first aspect when executed by at least one processor. [Effects of the Invention]

[0012] In an embodiment of the present application, a UE can determine target allocation parameters for transmitting synchronization resources on at least two carriers. The target allocation parameters include target time information and / or target interval information, and the allocation parameters of the synchronization resources on the at least two carriers are at least partially identical. In this technical solution, when multiple component carriers are used for carrier aggregation, the UE can determine the target time, the interval between the target times, and / or the interval between the synchronization resources on each carrier for transmitting synchronization resources, and the determined allocation parameters of the synchronization resources on these carriers are partially or completely identical. This aligns the synchronization resources on each component carrier, avoiding problems such as high occupancy of synchronization resources in the time domain and collisions between synchronization signals and other signals, thereby improving resource utilization and ensuring the reliability of sidelink services. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application; [Figure 2] FIG. 1 is a schematic diagram of a synchronization resource allocation method provided by an embodiment of the present application; [Figure 3] 1 is a schematic diagram of an example of synchronization resources provided by an embodiment of the present application. [Figure 4] FIG. 2 is a second schematic diagram of an example of synchronization resources provided by an embodiment of the present application. [Figure 5] FIG. 3 is a schematic diagram of an example of synchronization resources provided by an embodiment of the present application. [Figure 6] FIG. 4 is a schematic diagram of an example of synchronization resources provided by an embodiment of the present application. [Figure 7] FIG. 5 is a fifth schematic diagram of an example of synchronization resources provided by an embodiment of the present application. [Figure 8] FIG. 6 is a schematic diagram of an example of synchronization resources provided by an embodiment of the present application. [Figure 9] FIG. 7 is a schematic diagram of an example of synchronization resources provided by an embodiment of the present application. [Figure 10] FIG. 2 is a structural schematic diagram of a synchronization resource configuration device provided by an embodiment of the present application; [Figure 11] FIG. 1 is a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application; [Figure 12] FIG. 2 is a schematic diagram of the hardware structure of a UE provided by an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments that those skilled in the art can obtain based on the embodiments in the present application shall fall within the scope of protection of the present application.

[0015] Terms such as "first," "second," etc. in the description and claims of the embodiments of the present application do not describe a particular order or context, but are used to distinguish between similar objects. Terms used in this manner may be interchangeable in some cases, allowing the embodiments of the present application to be performed in an order other than that shown or described herein. In the description and claims, "and / or" indicates at least one of connected objects, and the " / " symbol generally indicates that the related objects before and after are in an "or" relationship.

[0016] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-Carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. In the embodiments of the present application, the terms "system" and "network" are often used interchangeably, and the techniques described herein may be used in the above systems and wireless communication technologies, or in other systems and wireless communication technologies. However, for illustrative purposes, the following description will describe a New Radio (NR) system, and NR terminology will be used in most of the following description, but these technologies are applicable to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0017] FIG. 1 is a schematic diagram illustrating the architecture of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a UE 11 and a network side device 12. The UE 11 is also referred to as a terminal device or a terminal. The UE 11 may be a mobile phone, a tablet personal computer, a laptop computer (also referred to as a notebook computer), a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device including a bracelet, earphones, glasses, etc., or a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc. Note that the embodiments of the present application are not limited to a specific type of the UE 11. The network side device 12 may be a base station or a core network. The base station may be referred to as a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (TRP), or other appropriate terminology in the field. The base station is not limited to a specific technical term as long as it can achieve the same technical effect. In the embodiments of this application, only base stations in an NR system are used as examples, and the specific type of base station is not limited.

[0018] Next, concepts and / or terms related to the synchronization resource allocation method, apparatus, user equipment, and storage medium provided by the embodiments of the present application will be described.

[0019] 1. Carrier Aggregation (CA) Carrier aggregation is the aggregation of two or more component carriers (CCs) to support a larger transmission bandwidth (e.g., up to 100 MHz). In fact, each component carrier corresponds to an independent cell, and typically, one component carrier can be considered as one cell. The maximum bandwidth of each component carrier is 20 MHz. Carrier aggregation allows the aggregation of different component carriers, such as component carriers of the same or different bandwidths, adjacent or non-adjacent component carriers in the same frequency band, and component carriers in different frequency bands.

[0020] 2. Sidelink The sidelink is also called a sublink, and is used for direct data transmission between UEs without going through network side equipment.

[0021] The UE transmits data by transmitting Sidelink Control Information (SCI) over the Physical Sidelink Control Channel (PSCCH) and scheduling transmissions over the Physical Sidelink Shared Channel (PSSCH). This transmission is broadcast without any feedback from the receiving end to the transmitting end as to whether the data has been successfully received.

[0022] LTE sidelink supports two resource allocation modes: scheduled resource allocation mode and autonomous resource selection mode. In the former, resources are allocated to each UE under the control of the network side device, while in the latter, the UE selects resources autonomously.

[0023] LTE supports sidelink carrier aggregation. Unlike the Uu interface (i.e., downlink and uplink), LTE sidelink carrier aggregation does not distinguish between primary and secondary component carriers (PCC and SCC). A UE in autonomous resource selection mode performs resource sensing and resource reservation independently on each CC.

[0024] The LTE sidelink design is suitable for specific public safety applications (e.g., emergency communications in disaster areas such as fires or earthquakes) or vehicle-to-everything (V2X) communications. Vehicle-to-everything communications include various services, such as basic safety communications, advanced (autonomous) driving, platooning, and sensor expansion. Because the LTE sidelink only supports broadcast communications, it is primarily used for basic safety communications, while other advanced V2X services are supported by the NR sidelink.

[0025] The 5G NR system can be used in operating bands above 6 GHz, which is not supported by LTE, and supports a larger operating band. The NR system also supports sidelink interface communication, which is direct communication between terminals.

[0026] Current sidelink transmission is mainly divided into three types of transmission formats: single-cast, multicast, and broadcast. Single-cast is one-to-one transmission, multicast is one-to-many transmission, and broadcast is also one-to-many transmission, but in the case of broadcast, there is no concept of UEs belonging to the same group.

[0027] In the sidelink, the PSCCH carries the SCI. The SCI is used for the scheduling PSSCH. The SCI can indicate transmission resources and reserve these resources for subsequent transmissions. The Physical Sidelink Feedback Channel (PSFCH) is used to feedback sidelink Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK) information. After determining the sidelink HARQ information, the UE may also transmit the sidelink HARQ information to the base station via the PUCCH or PUSCH.

[0028] Next, with reference to the drawings, the synchronization resource allocation method provided by the embodiments of the present application will be described in detail according to several embodiments and their application scenarios.

[0029] The embodiments of the present application are applicable to the case of sidelink carrier aggregation. By configuring predetermined synchronization parameters and / or performing grouping processing on S-SSBs and introducing spacing parameters, etc., during CA using multiple CCs, the synchronization resources of each CC can be aligned, avoiding the problems of high occupancy of synchronization resources in the time domain (i.e., reduced resource utilization) and transmission collision between synchronization signals and other signals, improving resource utilization, and ensuring the reliability of sidelink services.

[0030] An embodiment of the present application provides a synchronization resource allocation method. Figure 2 shows a flowchart of the synchronization resource allocation method provided by an embodiment of the present application. As shown in Figure 2, the synchronization resource allocation method provided by an embodiment of the present application may include the following steps 201 and 202:

[0031] In step 201, the UE determines target deployment parameters.

[0032] In step 202, the UE transmits synchronization resources on at least two carriers based on target deployment parameters.

[0033] In an embodiment of the present application, the target configuration parameters are used for transmitting synchronization resources on at least two carriers, and the target configuration parameters include at least one of target time information and target interval information, the target time information is for indicating the target time, the target interval information includes at least one of an interval of the target time and an interval of the synchronization resource, the target time includes at least the transmission time of the synchronization resource, and the configuration parameters of the synchronization resources on the at least two carriers are at least partially the same.

[0034] In the embodiments of the present application, the target time may be understood as the time available for transmitting synchronization resources on at least two carriers, and the transmission of synchronization resources on at least two carriers may be understood as the transmission or reception of synchronization resources on at least two carriers.

[0035] At least some of the configuration parameters of synchronization resources on at least two carriers being the same may be understood as meaning that for synchronization resources on at least two carriers, the configuration parameters of synchronization resources on these carriers are partly the same or completely the same.

[0036] For example, assuming that at least two carriers are carrier 1, carrier 2, and carrier 3, and the configuration parameters include position, length, and SCS, saying that at least some of the configuration parameters of synchronization resources on these carriers (i.e., carrier 1, carrier 2, and carrier 3) are the same means that the positions of the synchronization resources on carrier 1, the positions of the synchronization resources on carrier 2, and the positions of the synchronization resources on carrier 3 are the same, the lengths of the synchronization resources on carrier 1, the lengths of the synchronization resources on carrier 2, and the lengths of the synchronization resources on carrier 3 are the same, and the SCSs of the synchronization resources on carrier 1, the SCSs of the synchronization resources on carrier 2, and the SCSs of the synchronization resources on carrier 3 are the same, or the positions of the synchronization resources on carrier 1, the positions of the synchronization resources on carrier 2, and the positions of the synchronization resources on carrier 3 are the same, the lengths of the synchronization resources on carrier 1, the lengths of the synchronization resources on carrier 2, and the lengths of the synchronization resources on carrier 3 are the same, and the SCSs of the synchronization resources on carrier 1, the SCSs of the synchronization resources on carrier 2, and the SCSs of the synchronization resources on carrier 3 are different. Here, only the above two situations have been given to explain that at least some of the configuration parameters of synchronization resources on carriers are the same, but other situations are also included and will not be listed here one by one.

[0037] Optionally, in the embodiments of the present application, the synchronization resource may be a Sidelink-Synchronization Signal Block (S-SSB) or an S-SSB group.

[0038] An S-SSB group is at least one S-SSB located within a given time period and constituting one S-SSB group. The S-SSBs within an S-SSB group may or may not be contiguous in the time domain.

[0039] Optionally, in the embodiments of the present application, the target configuration parameter may be determined by any one of the following: a first time, configuration by a network side device, a pre-configuration, an instruction by other user equipment, or an autonomous decision by the UE. The first time is a time range in which synchronization resources of at least two carriers are located (or a length of synchronization resources of at least two carriers).

[0040] Optionally, in an embodiment of the present application, the resources within the first time period do not belong to a resource pool, or the resources within the first time period are not used for transmitting a predetermined channel / predetermined signal / predetermined signaling.

[0041] Optionally, in an embodiment of the present application, the resources within the target time do not belong to a resource pool, or the resources within the target time are not used for transmitting a predetermined channel / predetermined signal / predetermined signaling.

[0042] Note that the fact that resources within a first time period do not belong to a resource pool may be understood as meaning that resources within the first time period are excluded when a resource pool is determined, or that the first time period does not belong to a resource pool. The fact that resources within a target time period do not belong to a resource pool may be understood as meaning that resources within the target time period are excluded when a resource pool is determined, or that the target time period does not belong to a resource pool.

[0043] Optionally, in an embodiment of the present application, when determining the resource pool, resources that do not belong to the first time period but belong to the target time period are excluded.

[0044] Optionally, in the embodiment of the present application, the predetermined channel / predetermined signal / predetermined signaling may include at least one of a PSCCH, a PSSCH, a PSFCH, an SCI, or a Reference Signal (RS).

[0045] Optionally, in an embodiment of the present application, the target time information includes at least one of: a length of the target time, a start point of the target time, an end point of the target time, and an SCS of the target time.

[0046] Optionally, in an embodiment of the present application, the target time length is any one of a first time length on a first carrier, a first time length on a second carrier, and a preset length, where the first carrier is a carrier selected by a UE from at least two carriers, the second carrier is a carrier with the longest first time length among all the carriers, and the first time is a time range in which synchronization resources on the at least two carriers are located.

[0047] Optionally, in an embodiment of the present application, the first carrier is determined by at least one of the following: SCS of the carrier, priority of the carrier, synchronization priority order of the carrier, synchronization reference of the carrier, Sidelink-Synchronization Signal (SLSS) identifier of the carrier, duplex pattern of the carrier, number of synchronization resources of the carrier, number of S-SSBs of the carrier, frequency of the carrier, frequency band / frequency range of the carrier, Absolute Radio Frequency Channel Number (ARFCN) of the carrier, Global Synchronization Channel Number (GSCN) of the carrier, coverage status corresponding to the carrier, whether a base station / global satellite positioning system (Global Navigation Satellite System, GNSS) is detected on the carrier, and index of the carrier.

[0048] Optionally, in an embodiment of the present application, the first carrier is any one of the carrier with the largest SCS, the carrier with the smallest SCS, and the carrier with a predetermined SCS.

[0049] Optionally, in an embodiment of the present application, the first carrier is one of: a carrier with the highest priority when selecting a carrier; a carrier with the lowest priority when selecting a carrier; a carrier with a predetermined priority; a carrier with the highest priority when selecting a synchronization reference; or a carrier with the lowest priority when selecting a synchronization reference.

[0050] Optionally, in an embodiment of the present application, the first carrier is any one of a carrier whose synchronization priority is a base station and a carrier whose synchronization priority is a GNSS.

[0051] Here, the base station is a gNB or an eNB.

[0052] Optionally, in an embodiment of the present application, the first carrier is any one of a carrier whose synchronization reference is a base station, a carrier whose synchronization reference is a GNSS, and a carrier whose synchronization reference is a synchronization reference user equipment (SyncRef UE).

[0053] Here, the base station is a gNB or an eNB.

[0054] Optionally, in an embodiment of the present application, the first carrier is any one of: a carrier with the smallest SLSS identifier; a carrier with a predetermined SLSS identifier.

[0055] Illustratively, the predetermined SLSS identifier (SLSS ID) is 0, 1, 336 or 337.

[0056] Optionally, in an embodiment of the present application, the first carrier is any one of a carrier whose duplex pattern is Time Division Duplexing (TDD), a carrier that has acquired TDD configuration, a carrier in an unpaired band, a carrier whose duplex pattern is Frequency Division Duplexing (FDD), a carrier that has not acquired TDD configuration, and a carrier in a paired band.

[0057] Optionally, in an embodiment of the present application, the carrier corresponds to a predetermined TDD config or pattern.

[0058] Optionally, in an embodiment of the present application, the first carrier is a carrier having a predetermined number of synchronization resources.

[0059] Exemplarily, the predetermined number of synchronization resources is 1, 2 or 3.

[0060] Optionally, in an embodiment of the present application, the first carrier is any one of the following: a carrier with the smallest number of S-SSBs within one synchronization period; a carrier with the largest number of S-SSBs within one synchronization period; and a carrier with a predetermined number of S-SSBs within one synchronization period.

[0061] Optionally, in an embodiment of the present application, the first carrier is any one of the following: a carrier with the lowest frequency, a carrier with the highest frequency, and a carrier having a predetermined frequency.

[0062] Optionally, in an embodiment of the present application, the predetermined frequency is any one of point A, a center frequency / boundary frequency of S-SSB, a center frequency / boundary frequency of a bandwidth part (BWP), and a center frequency / boundary frequency of a resource pool.

[0063] Optionally, in an embodiment of the present application, the first carrier is any one of the following: a carrier with the lowest frequency band / frequency range, a carrier with the highest frequency band / frequency range, a carrier with the smallest frequency band / frequency range, a carrier with the largest frequency band / frequency range, or a carrier with a predetermined frequency band / frequency range.

[0064] Optionally, in an embodiment of the present application, the first carrier is any one of the following: a carrier with the smallest ARFCN, a carrier with the largest ARFCN, and a carrier with a predetermined ARFCN.

[0065] Optionally, in an embodiment of the present application, the first carrier is any one of the following: a carrier with the smallest GSCN, a carrier with the largest GSCN, and a carrier with a predetermined GSCN.

[0066] Optionally, in an embodiment of the present application, the first carrier is one of an in-coverage carrier and an out-of-coverage carrier.

[0067] Optionally, in an embodiment of the present application, the first carrier is any one of a carrier that detects a base station (e.g., a carrier that detects a base station providing a sidelink service) and a carrier that detects a GNSS (e.g., a carrier that detects a highly reliable GNSS).

[0068] Optionally, in an embodiment of the present application, the first carrier is any one of the following: a carrier with the smallest index, a carrier with the largest index, or a carrier with a predetermined index.

[0069] Optionally, in the embodiment of the present application, the first carrier may specifically be a reference carrier, a synchronization carrier, or a primary carrier (PCC).

[0070] Optionally, in the embodiments of the present application, the UE may obtain the above-mentioned predetermined SCS / predetermined priority / predetermined S-SS ID / predetermined TDD configuration / TDD pattern / predetermined number of synchronization resources / predetermined number of S-SSBs / predetermined frequency / predetermined frequency band / frequency range / predetermined ARFCN / predetermined index, etc. through configuration by network side equipment, predetermining configuration, instruction from other user equipment, or autonomous decision by the UE.

[0071] The UE selects only one carrier as the primary carrier. If there are multiple carriers that simultaneously satisfy the above primary carrier selection conditions, the UE can determine which carrier to select. For example, the UE may randomly select one of these multiple carriers as the primary carrier.

[0072] Optionally, in an embodiment of the present application, the origin of the time of interest includes an origin of the time of interest on a first carrier and an origin of the time of interest on another carrier. The origin of the time of interest on the other carrier is obtained by a first distance, where the first distance is a distance between the origin of the time of interest on the other carrier and a first location, and the first distance is determined by a second distance, where the second distance is a distance between the origin of the time of interest on the first carrier and the first location. The first location is any one of a location of Direct Frame Number (DFN0) / System Frame Number (SFN0) on the carrier, a start point of a synchronization period on the carrier, and an end point of a synchronization period on the carrier.

[0073] Optionally, in the embodiment of the present application, for the start point of the target time, the UE may determine a distance (i.e., a second distance, JPEG0007794850000001.jpg7161) and Based on JPEG0007794850000002.jpg7161, the first position in the other carrier (i.e., the position of DFN0 / the position of SFN0 / the start point of the synchronization period / the end point of the synchronization period in the other carrier) and the distance between the start point of the target time in the other carrier (i.e., the first distance, JPEG0007794850000003.jpg7161) can be calculated. JPEG0007794850000004.jpg9161, JPEG0007794850000005.jpg7161 is the subcarrier spacing factor corresponding to the first carrier, JPEG0007794850000006.jpg7161 is the subcarrier spacing factor corresponding to carrier i.

[0074] Although the offsets of each carrier have the same absolute length in the time domain, the SCS of each carrier may be different, and therefore the specific values ​​of each offset may be different.

[0075] Optionally, in the examples of the present application, JPEG0007794850000007.jpg7161 is equal to the distance between the first position on the first carrier and the origin of the first time on the first carrier.

[0076] Optionally, in an embodiment of the present application, the end point of the target time includes an end point of the target time on a first carrier and an end point of the target time on another carrier, the end point of the target time on the other carrier is obtained by a third distance, the third distance being the distance between the end point of the target time on the other carrier and the first location, and the third distance is determined by a fourth distance, the fourth distance being the distance between the end point of the target time on the first carrier and the first location.

[0077] Optionally, in the embodiment of the present application, for the end point of the target time, the UE may determine, according to the configuration by the network side device, the pre-configuration, the instruction by other user equipment, or the autonomous decision by the UE, the distance between the first location in the first carrier (i.e., the location of DFN0 / the location of SFN0 / the start point of the synchronization period / the end point of the synchronization period in the first carrier) and the end point of the target time in the first carrier (i.e., the fourth distance, JPEG0007794850000008.jpg7161) and Based on JPEG0007794850000009.jpg7161, the distance between the first position in the other carrier (i.e., the position of DFN0 / the position of SFN0 / the start point of the synchronization period / the end point of the synchronization period in the other carrier) and the end point of the target time in the other carrier (i.e., the third distance, JPEG0007794850000010.jpg7161) can be calculated. JPEG0007794850000011.jpg8161, JPEG0007794850000012.jpg6161 is the subcarrier spacing factor corresponding to the first carrier, JPEG0007794850000013.jpg6161 is the subcarrier spacing factor corresponding to carrier i.

[0078] Although the offsets of each carrier have the same absolute length in the time domain, the SCS of each carrier may be different, and therefore the specific values ​​of each offset may be different.

[0079] Optionally, in the examples of the present application, JPEG0007794850000014.jpg7161 is equal to the distance between the first position on the first carrier and the end point of the first time on the first carrier.

[0080] Optionally, in an embodiment of the present application, the SCS of the target time satisfies any one of the following: the SCS is the same as the SCS of the first time on the first carrier; the SCS of the target time on each carrier is the same as the SCS of the first time on each carrier; the SCS is the same as the largest SCS among all carriers; the SCS is the same as the smallest SCS among all carriers; or the SCS is a preset SCS.

[0081] Naturally, the SCS of the target time on each carrier is the same as the SCS of the first time on the first carrier. Or, the SCS of the target time on each carrier is the same as the SCS of the first time on each carrier; for example, the SCS of the target time on carrier 1 is the same as the SCS of the first time on carrier 1, and the SCS of the target time on carrier 2 is the same as the SCS of the first time on carrier 2. Or, the SCS of the target time on each carrier is the same as the largest SCS among all carriers. Or, the SCS of the target time on each carrier is the same as the smallest SCS among all carriers. Or, the SCS of the target time on each carrier is a preset value.

[0082] Optionally, in an embodiment of the present application, the target interval information is determined by at least one of: predetermined interval information, synchronization resource grouping information, common interval information, reference interval information, and SCS of a carrier.

[0083] Optionally, in an embodiment of the present application, the predetermined interval information comprises: Only one S-SSB is transmitted in a transmission cycle. The number of S-SSBs in each synchronization resource is one; There is only one target time in the transmission cycle. There is no interval of interest, There is no spacing between S-SSB groups, In the S-SSB group, there is no S-SSB interval. The number of S-SSB groups is 1.

[0084] Note that the absence of intervals described in the examples of the present application (i.e., intervals, for example, interval1, interval2, and interval3 described in the examples below) may be understood as meaning that the concept of "interval" disappears when there is only one target time or only one S-SSB / S-SSB group within one period. Therefore, the interval may be set to a specified value, for example, the interval may be set to 0.

[0085] Naturally, the UE may, by configuration by network side equipment, by prior configuration, by instruction from other user equipment, or by autonomous decision by the UE, set one S-SSB to be transmitted in one period of the carrier transmitting the synchronization signal, and / or set the number of S-SSBs in each synchronization resource to 1, and / or set the target time within the period to 1, and / or set the interval of the target time (also referred to as interval1) to be nonexistent, and / or set the interval of the S-SSB group (also referred to as interval2) to be nonexistent, and / or set the interval of the S-SSB within the S-SSB group (also referred to as interval3) to be nonexistent, and / or set the number of S-SSB groups (syncgroupnum) to 1.

[0086] For example, CA is performed using carrier 1, carrier 2, and carrier 3, as shown in Figure 3. Assume that the synchronization period is 160 ms, the SCS of carrier 1 is 15 kHz, the SCS of carrier 2 is 30 kHz, and the SCS of carrier 3 is 60 kHz, and the number of S-SSBs transmitted in the synchronization period of each carrier is set to 1. The UE determines the longest first time period on each carrier as the length of the target time. In this case, interval, interval 2, and interval 3 do not exist on each carrier, and the number of S-SSB groups in each synchronization period of each carrier is 1.

[0087] Optionally, in an embodiment of the present application, in the first case, the target interval information is: There is no interval of interest, There is no spacing between S-SSB groups, Regarding the spacing between S-SSBs within an S-SSB group, at least one of the following conditions is satisfied: in a carrier that transmits one S-SSB within one period, there is no spacing between S-SSBs within the S-SSB group; or, in a carrier that transmits multiple S-SSBs within one period, the spacing between S-SSBs within the S-SSB group is 0 (i.e., the S-SSBs within one period are placed in consecutive slots).

[0088] The first case above satisfies that the synchronization resource grouping information is intended to indicate that when there are at least two carriers transmitting multiple S-SSBs within one period, the number of S-SSB groups transmitted by each carrier within one period is set to 1.

[0089] Naturally, in this way, when there are at least two carriers transmitting multiple S-SSBs within one period, the UE sets the number of S-SSB groups transmitted by each carrier within one period to 1, and in this case, the target interval information satisfies at least one of the above.

[0090] For example, CA is performed using carrier 1, carrier 2, and carrier 3, as shown in Figure 4. Assume that the synchronization period is 160 ms, the SCS of carrier 1 is 15 kHz, the SCS of carrier 2 is 30 kHz, and the SCS of carrier 3 is 60 kHz, and the number of S-SSBs transmitted within the synchronization period of carrier 1, carrier 2, and carrier 3 is set to 1, 2, and 2, respectively. The UE determines the longest first time period on each carrier as the length of the target time. In this case, none of interval 1 on each carrier exists, none of interval 2 on each carrier exists, interval 3 on carrier 1 does not exist, interval 3 on carrier 2 and carrier 3 is 0, and the number of S-SSB groups within each synchronization period of each carrier is 1.

[0091] Optionally, in an embodiment of the present application, in the second case, the target interval information is: For a target time interval, if there is a carrier among at least two carriers that transmits only one S-SSB within one period, the target time interval does not exist, or if there is no carrier that transmits only one S-SSB within one period, the target time interval is configured, pre-configured, pre-defined by a network side device, or autonomously determined by the UE, or instructed by another UE; Regarding the S-SSB group interval, if there is at least two carriers that transmit only one S-SSB within one period, there is no S-SSB group interval, or if there is no carrier that transmits only one S-SSB within one period, the S-SSB group interval and the target time interval are the same (i.e., interval2 = interval1); Regarding the spacing between S-SSBs within an S-SSB group, if there is a carrier among at least two carriers that transmits only one S-SSB within one period, then there is no spacing between S-SSBs within the S-SSB group in the carrier that transmits only one S-SSB within one period, or the spacing between S-SSBs within the S-SSB group is 0 in the carrier that transmits multiple S-SSBs within one period, and if there is no carrier that transmits only one S-SSB within one period, then the spacing between S-SSBs within the S-SSB group is 0 in each carrier (i.e., the S-SSBs within one S-SSB group are arranged in consecutive slots); Regarding the number of S-SSBs in an S-SSB group, at least one of the following is satisfied: the number of S-SSBs included in each S-SSB group on any carrier (e.g., carrier i) is the ratio of the number of S-SSBs transmitted by that carrier in one period to the number of S-SSB groups.

[0092] In the second case, the synchronization resource grouping information satisfies the requirement that when there are at least two carriers transmitting multiple S-SSBs within one period, the number of S-SSB groups transmitted by each carrier within one period is assigned to a first numerical value, the first numerical value being the number of S-SSBs transmitted within one period on a third carrier, and the third carrier being the carrier with the smallest number of S-SSBs transmitted within one period.

[0093] Optionally, in an embodiment of the present application, in the second case, the target interval information is: Regarding the target time interval, if a carrier among the at least two carriers transmits only one S-SSB within one period, there is no target time interval; or if each carrier among the at least two carriers transmits multiple S-SSBs within one period, the target time interval is configured, pre-configured, pre-defined by a network side device, autonomously determined by a UE, or instructed by another UE; Regarding the S-SSB group interval, if a carrier among at least two carriers transmits only one S-SSB within one period, there is no S-SSB group interval, or if each carrier among at least two carriers transmits multiple S-SSBs within one period, the S-SSB group interval and the target time interval are the same; Regarding the spacing between S-SSBs within an S-SSB group, if a carrier out of at least two carriers transmits only one S-SSB within one period, there is no spacing between S-SSBs within the S-SSB group in the carrier that transmits only one S-SSB within one period, or the spacing between S-SSBs within the S-SSB group is 0 in the carrier that transmits multiple S-SSBs within one period, and if each of the at least two carriers transmits multiple S-SSBs within one period, the spacing between S-SSBs within the S-SSB group is 0 in each carrier; Regarding the number of S-SSBs in an S-SSB group, at least one of the following conditions is satisfied: the number of S-SSBs included in each S-SSB group on any carrier is the ratio of the number of S-SSBs transmitted by any carrier in one period to the number of S-SSB groups.

[0094] Naturally, in this way, when there are at least two carriers transmitting multiple S-SSBs in one period, the UE determines the number of S-SSB groups transmitted by each carrier in one period as a first numerical value ( JPEG0007794850000015.jpg7161). JPEG0007794850000016.jpg7161 is the number of S-SSBs transmitted in one period on carrier i, and in this case, the target interval information satisfies at least one of the above.

[0095] For example, CA is performed using carrier 1, carrier 2, and carrier 3 as shown in Figure 5. Assume that the synchronization period is 160 ms, the SCS of carrier 1 is 30 kHz, the SCS of carrier 2 is 60 kHz, and the SCS of carrier 3 is 60 kHz, and the numbers of S-SSBs transmitted within the synchronization periods of carrier 1, carrier 2, and carrier 3 are set to 2, 4, and 8, respectively. The UE determines the longest first time period on each carrier as the length of the target time. In this case, the number of S-SSB groups transmitted by each carrier within one period is 2, interval1 on each carrier = interval2 on each carrier, and interval3 on each carrier are all 0, the number of S-SSBs in each S-SSB group on carrier 1 = 1, the number of S-SSBs in each S-SSB group on carrier 2 = 2, and the number of S-SSBs in each S-SSB group on carrier 3 = 4.

[0096] In the embodiment of the present application, the UE can ensure the alignment of synchronization resources on each carrier through a predetermined S-SSB arrangement or S-SSB grouping, in which case all carriers do not need to discard S-SSBs or send virtual S-SSBs (e.g., the corresponding positions are filled information).

[0097] Optionally, in an embodiment of the present application, the target interval information being determined by common interval information includes the common interval information being configured, pre-configured, pre-defined by network side equipment, indicated by other user equipment, or autonomously determined by the UE, and the interval information of at least two carriers and the common interval information being the same.

[0098] Naturally, the UE obtains the common spacing information through the above method, and the spacing information of at least two carriers is the same as the common spacing information.

[0099] Optionally, in an embodiment of the present application, the UE may use the interval information of the first carrier as common interval information, which includes at least one of the SCS of the S-SSB, the number of S-SSBs, the number of S-SSB groups, the interval of the target time, and the interval of the S-SSB (e.g., the interval of the S-SSB group, interval2, and the interval of the S-SSB within the S-SSB group, interval3).

[0100] For example, CA is performed using carrier 1, carrier 2, and carrier 3, as shown in Figure 6. Assume that the synchronization period is 160 ms, the SCS of carrier 1 is 15 kHz, the SCS of carrier 2 is 30 kHz, and the SCS of carrier 3 is 60 kHz. The initial allocation of the numbers of S-SSBs transmitted within the synchronization period of carrier 1, carrier 2, and carrier 3 is 2, 2, and 1, respectively. The UE selects carrier 2 as the first carrier, uses the spacing information of carrier 2 as common spacing information, and sets the spacing information and common spacing information of each carrier to be the same. Therefore, the number of S-SSBs transmitted within the synchronization period of carrier 1 and carrier 3 is both 2, and the SCS of the S-SSBs is also 30 kHz. In this case, the alignment of the synchronization resources of each carrier is maintained (in this case, it is not necessary to ensure the alignment of the synchronization resources according to the target time).

[0101] In the embodiment of the present application, the UE can obtain common spacing information (i.e., common S-SSB / S-SSB group configuration) through configuration by network side equipment, pre-configuration, instruction from other user equipment, or autonomous decision by the UE, and apply it to all carriers. In this case, the S-SSB configuration (e.g., information such as number and spacing) on ​​each carrier is the same, thereby ensuring the alignment of synchronization resources on each carrier.

[0102] Optionally, in an embodiment of the present application, the target interval information is determined by reference interval information, If there is a first synchronization resource that is not located within a time period determined by the reference interval information among the synchronization resources waiting to be transmitted by the fourth carrier, not transmitting the first synchronization resource or all of the synchronization resources; The present invention includes at least one of the following: there is a second time, which is a time when synchronization resources are not transmitted on the fifth carrier, and when the second time is aligned with the time determined by the reference interval information, the information transmitted at the second time is filling information or predetermined information.

[0103] Of course, if there is a first synchronization resource among the synchronization resources waiting to be transmitted by the fourth carrier, the UE will not transmit the first synchronization resource or will not transmit all of the synchronization resources, and / or if there is a second time period on the fifth carrier and the second time period is aligned with the time determined by the reference interval information, the UE will transmit filling information or predetermined information at the second time period.

[0104] Optionally, in an embodiment of the present application, the UE may use the interval information of the first carrier as reference interval information, which includes at least one of the SCS of the S-SSB, the number of S-SSBs, the number of S-SSB groups, the target time interval, and the interval of the S-SSB (e.g., interval2 of the S-SSB group, interval3 of the S-SSB in the S-SSB group).

[0105] Of course, in one embodiment, in a given carrier, if an S-SSB / S-SSB group (i.e., a first synchronization resource) that requires transmission and that exists on that carrier and an S-SSB / S-SSB group determined by the reference interval information are not located at the same time (e.g., target time), the UE will not transmit the first synchronization resource or will not transmit any S-SSB / S-SSB groups.

[0106] For example, CA is performed using carrier 1 and carrier 2 as shown in Figure 7. Assume that the synchronization period is 160 ms, the SCS of carrier 1 is 30 kHz, the SCS of carrier 2 is 60 kHz, and the initial allocation of the number of S-SSBs transmitted within the synchronization period of carriers 1 and 2 is 1 and 2, respectively. The UE determines the first time period on carrier 1 as the target time, the interval information of carrier 1 as the reference interval information, and the interval information and the reference interval information on each carrier are the same. Therefore, carrier 2 needs to discard the transmission of S-SSBs that do not belong to the target time period (i.e., S-SSB2 shown in Figure 7).

[0107] Of course, in another embodiment, in any carrier, if the second time (i.e., the time when no S-SSB / S-SSB group is transmitted) existing in that carrier is aligned with the S-SSB / S-SSB group arrangement determined by the reference interval information, the UE may transmit a virtual S-SSB / S-SSB group (i.e., filling information (e.g., redundant information) or predetermined information) from the start of the second time.

[0108] For example, CA is performed using carrier 1 and carrier 2 as shown in Figure 8. Assume that the synchronization period is 160 ms, the SCS of carrier 1 is 30 kHz, the SCS of carrier 2 is 60 kHz, and the initial number of S-SSBs transmitted within the synchronization period of carrier 1 and carrier 2 is 1 and 2, respectively. The UE sets the first time period on carrier 1 as the target time, the interval information of carrier 2 as the reference interval information, and the interval information and the reference interval information on each carrier are the same. Therefore, carrier 1 needs to transmit one virtual S-SSB (i.e., S-SSB2 shown in Figure 8) from the start of the second time period.

[0109] Regarding the technical means of the common interval information and the reference interval information, the technical means of the common interval information is to directly apply the common interval information to all carriers, while the technical means of the reference interval information is to use the original interval information of each carrier as a basis, and to discard the synchronization resources of some carriers or transmit virtual synchronization resources of some carriers, so that the synchronization resources of each carrier and the synchronization resources determined by the reference interval information are located at the same time.

[0110] In an embodiment of the present application, the UE determines reference interval information (i.e., reference S-SSB / S-SSB group configuration) through configuration by network side equipment, pre-configuration, instruction from other user equipment, or autonomous decision by the UE, and then compares the S-SSB / S-SSB group configuration on each carrier with the reference interval information, and can discard synchronization resources on some carriers or transmit virtual synchronization resources on some carriers so that the synchronization resources on each carrier and the synchronization resources determined by the reference interval information are located at the same time, thereby ensuring the alignment of the synchronization resources on each carrier.

[0111] Optionally, in an embodiment of the present application, the target interval information being determined by the SCS of the carrier includes any one of the following: being determined by a configuration parameter of a synchronization resource in a first carrier; and the number of synchronization resources in different carriers being a preset value.

[0112] It should be noted that the different carriers may be carriers of different SCSs or carriers with other different attributes, which can be specifically determined according to usage requirements and are not limited in the embodiments of the present application.

[0113] Of course, in one embodiment, the UE determines the first carrier by configuration by network side equipment, pre-configuration, instruction from other user equipment, or autonomous decision by the UE, and determines the allocation of synchronization resources in other carriers based on the allocation of synchronization resources in the first carrier, thereby making the length of time occupied by the synchronization resources in each carrier the same.

[0114] Optionally, in an embodiment of the present application, the number of S-SSBs in carrier i JPEG0007794850000017.jpg8161 is JPEG0007794850000018.jpg8161, JPEG0007794850000019.jpg7161 is the subcarrier spacing factor corresponding to the first carrier, JPEG0007794850000020.jpg7161 is the subcarrier spacing factor corresponding to carrier i, JPEG0007794850000021.jpg8161 is the number of SSBs on the first carrier.

[0115] Of course, in another embodiment, the UE can set the number of synchronization resources in carriers with different SCSs to a fixed value, thereby making the length of time occupied by the synchronization resources in each carrier the same. For example, the UE can set the number of S-SSBs in a carrier with SCS=15 kHz to 1, the number of S-SSBs in a carrier with SCS=30 kHz to 2, and the number of S-SSBs in a carrier with SCS=60 kHz to 4. Alternatively, the UE can set the number of S-SSBs in a carrier with SCS=15 kHz to 2, the number of S-SSBs in a carrier with SCS=30 kHz to 4, and the number of S-SSBs in a carrier with SCS=60 kHz to 8.

[0116] For example, CA is performed using carriers 1, 2, and 3, as shown in Figure 9. Assume that the synchronization period is 160 ms, the SCS of carrier 1 is 15 kHz, the SCS of carrier 2 is 30 kHz, and the SCS of carrier 3 is 60 kHz, and the number of S-SSBs transmitted within the synchronization period of carriers 1, 2, and 3 is 1, 2, and 4, respectively. In this case, the first time on any carrier can be the second time. The synchronization resource alignment of each carrier is maintained.

[0117] In the embodiment of the present application, since the SCS of each carrier may be different, the synchronization resources of the corresponding carriers are configured according to the SCS of the carriers, so that the synchronization resources of each carrier can be aligned.

[0118] Optionally, in an embodiment of the present application, the target configuration parameter further includes first information for indicating whether synchronization resources are configured on carriers, where the first information includes at least one of: synchronization resources are configured only on the first carrier; synchronization resources are configured on all carriers for CA transmission; synchronization resources are configured on carriers actually used for CA transmission; synchronization resources are configured only on carriers in the first set; or synchronization resources are configured only on carriers in the second set.

[0119] Optionally, in an embodiment of the present application, the first information is further for indicating that the number of synchronization resources is the same in the carriers on which the synchronization resources are arranged.

[0120] Optionally, in an embodiment of the present application, the first set may be Set A (carriers that can potentially be used as the synchronization carrier), and the second set may be Set B (the available set of synchronization carriers).

[0121] Optionally, in an embodiment of the present application, the target configuration parameters further include synchronization resource content (S-SSB content), and the synchronization resource content includes at least one of a DFN, a slot index, coverage, duplex configuration, and an SLSS identifier.

[0122] Optionally, in an embodiment of the present application, the duplex configuration includes at least one of a TDD configuration and an FDD configuration.

[0123] Optionally, in an embodiment of the present application, the DFN value in the above synchronization resource is the same as or different from the DFN value in the synchronization resource in the first carrier, or is a preset value.

[0124] Optionally, in an embodiment of the present application, the slot index value in the synchronization resource is the same as or different from the slot index value in the synchronization resource in the first carrier, or is a preset value.

[0125] Optionally, in an embodiment of the present application, the coverage value in the synchronization resource is the same as or different from the coverage value in the synchronization resource in the first carrier, or is a preset value.

[0126] Optionally, in an embodiment of the present application, the TDD configuration in the synchronization resource is the same as or different from the TDD configuration in the synchronization resource in the first carrier, or is a preset value.

[0127] Optionally, in an embodiment of the present application, the SLSS identifier in the synchronization resource is the same as or different from the SLSS identifier in the synchronization resource in the first carrier, or is a preset value.

[0128] It should be understood that the DFN value in the S-SSB for each carrier and the DFN value in the S-SSB for the first carrier may be the same or different, or may be a preset value; and / or the slot index value in the S-SSB for each carrier and the slot index value in the S-SSB for the first carrier may be the same or different, or may be a preset value; and / or the in-coverage value in the S-SSB for each carrier and the in-coverage value in the S-SSB for the first carrier may be the same or different, or may be a preset value; and / or the TDD configuration in the S-SSB for each carrier and the TDD configuration in the S-SSB for the first carrier may be the same or different, or may be a preset value; and / or the SLSS ID in the S-SSB for each carrier and the SLSS ID in the S-SSB for the first carrier may be the same or different, or may be a preset value.

[0129] Optionally, in an embodiment of the present application, the method for performing carrier-based synchronization for at least two carriers includes at least one of timing synchronization and transmission direction synchronization, where the timing synchronization is to use a synchronization reference source corresponding to a first carrier as a synchronization reference for the other carriers, and the transmission direction synchronization is to use the transmission direction of a synchronization resource in the first carrier as the transmission direction of a target synchronization resource in the other carriers, and the target synchronization resource is a synchronization resource in the other carrier that is aligned with the synchronization resource of the first carrier.

[0130] Of course, for timing synchronization, the UE may use a synchronization reference source corresponding to the first carrier as a synchronization reference for other carriers, and the timing synchronization may be understood as determining the timing of other carriers based on the timing corresponding to the first carrier.

[0131] Regarding transmission direction synchronization, the UE determines the transmission direction of the synchronization resource on the first carrier through configuration by the network side device, pre-configuration, instruction from other user equipment, or autonomous decision by the UE, and makes the transmission direction of the synchronization resource aligned with the first carrier synchronization resource on other carriers the same as that of the first carrier.

[0132] Optionally, in an embodiment of the present application, the timing synchronization includes at least one of frame boundary alignment, subframe boundary alignment, slot boundary alignment, symbol boundary alignment, second / millisecond / microsecond level alignment.

[0133] Optionally, in the embodiment of the present application, the frame boundary alignment may have the same or different frame indexes; the subframe boundary alignment may have the same or different subframe indexes; the slot boundary alignment may have the same or different slot indexes; the symbol boundary alignment may have the same or different symbol indexes; and the second / millisecond / microsecond level alignment may have the same or different second / millisecond / microsecond indexes.

[0134] Optionally, in an embodiment of the present application, the other carriers are any one of all carriers for CA transmission, carriers actually used for CA transmission, carriers on which synchronization resources are allocated, carriers in the first set, and carriers in the second set.

[0135] In an embodiment of the present application, the UE may first perform carrier synchronization for at least two carriers according to the above method, and then determine target configuration parameters, thereby aligning the synchronization resources of each component carrier.

[0136] Optionally, in an embodiment of the present application, the method for transmitting synchronization signals of synchronization resources on at least two carriers by a UE includes: the UE transmits synchronization signals only on the first carrier; The UE determines whether to transmit a synchronization signal on each of the at least two carriers based on values ​​of the interval information on the at least two carriers; The UE autonomously decides which carrier to transmit the synchronization signal on when transmission exceeds the UE's capabilities.

[0137] It should be understood that the UE transmits the synchronization signal on at least the first carrier. In one embodiment, if the UE is only permitted to transmit the synchronization signal on the synchronization resource on one carrier, the UE may transmit the synchronization signal on the first carrier. In another embodiment, if the UE is permitted to transmit the synchronization signal on the synchronization resource on multiple carriers, the UE may determine whether to transmit the synchronization signal on each carrier based on the values ​​of the spacing information on at least two carriers.

[0138] For example, if the value of the interval information on carrier 1 is 1, the UE transmits a synchronization signal on carrier 1. If the value of the interval information on carrier 1 is 0, the UE does not transmit a synchronization signal on carrier 1.

[0139] If the transmission exceeds the UE's capacity (for example, if the number of carriers available for transmission exceeds the upper limit), the UE autonomously determines the carrier to transmit the synchronization signal. For example, the UE randomly selects a carrier that satisfies the transmission conditions.

[0140] In the embodiments of the present application, after determining the target configuration parameters, the UE may transmit a synchronization signal on the first carrier, or may determine the carrier on which to transmit the synchronization signal based on the capability of the UE, or may transmit a synchronization signal on the synchronization resources of at least two carriers according to the target configuration parameters.

[0141] Optionally, in an embodiment of the present application, the relationship between the synchronization resources of the at least two carriers and a Discontinuous Reception (DRX) mechanism is as follows: The target time and the DRX activation time overlap at least partially; The target time interval is an integer multiple of the DRX cycle, or the DRX cycle is an integer multiple of the target time interval; the first time and the DRX activation time at least partially overlap; the first time interval is an integer multiple of the DRX period, or the DRX period is an integer multiple of the first time interval; The period of the synchronization resource is an integer multiple of the DRX period, or the DRX period is an integer multiple of the period of the synchronization resource; The first time / target time / synchronization resource is located before the DRX activation time; allowing the UE to transmit a synchronization signal on a synchronization resource located during a DRX deactivation time; and not allowing the UE to transmit synchronization signals on synchronization resources located in the DRX deactivation time.

[0142] Optionally, in an embodiment of the present application, the at least partial overlap between the target time and the DRX activation time includes at least one of: a start point of the target time and a start point of the DRX activation time are the same; an end point of the target time and an end point of the DRX activation time are the same; a first overlap length is equal to or greater than a first preset threshold; or a ratio of the first overlap length to the target time / DRX activation time / DRX period is equal to or greater than a second preset threshold. The first overlap length is the overlap length between the target time and the DRX activation time.

[0143] Optionally, in an embodiment of the present application, the at least partial overlap between the first time and the DRX activation time includes at least one of: a start point of the first time and a start point of the DRX activation time are the same; an end point of the first time and an end point of the DRX activation time are the same; a second overlap length is equal to or greater than a third preset threshold; or a ratio of the second overlap length to the first time / DRX activation time / DRX period is equal to or greater than a fourth preset threshold. The second overlap length is the overlap length between the first time and the DRX activation time.

[0144] Optionally, in an embodiment of the present application, the target time interval is equal to a DRX period, the first time interval is equal to a DRX period, and the period of the S-SSB / S-SSB group is equal to a DRX period.

[0145] Optionally, in the embodiments of the present application, the first time / target time / synchronization resource being located before the DRX activation time may specifically mean that the distance between the end point of the first time / second time / S-SSB / S-SSB group and the start point of the DRX activation time is greater than a preset threshold.

[0146] The DRX activation time may be understood as the time (i.e., activation period) during which the UE monitors / receives / demodulates / measures a predetermined channel / signal / signaling. The DRX activation time may include at least one of a DRX duration, an inactivity timer operation time, and a retransmission timer operation time.

[0147] The DRX inactive time may be understood as a time during which the UE does not monitor / receive / demodulate / measure a given channel / signal / signaling (i.e., a sleep period), and may include at least one of a DRX off duration and a Round Trip Time (RTT) timer operation time.

[0148] Optionally, in an embodiment of the present application, the predetermined channel / signal / signaling may include at least one of a PSCCH, a PSSCH, a Physical Sidelink Broadcast Channel (PSBCH), a PSFCH, an SCI, an S-SSB, and an RS.

[0149] An embodiment of the present application provides a synchronization resource allocation method. A UE can determine target allocation parameters for transmitting synchronization resources on at least two carriers. The target allocation parameters include target time information and / or target interval information, and the allocation parameters of the synchronization resources on the at least two carriers are at least partially identical. With this technical solution, when multiple component carriers are used for carrier aggregation, the UE can determine the target time, the interval between the target times, and / or the interval between the synchronization resources on each carrier for transmitting the synchronization resources, and the determined allocation parameters of the synchronization resources on these carriers are partially or completely identical. This aligns the synchronization resources on each component carrier, avoiding problems such as high occupancy of synchronization resources in the time domain and collisions between synchronization signals and other signals, thereby improving resource utilization and ensuring the reliability of sidelink services.

[0150] In addition, the synchronous resource allocation method provided by the embodiments of the present application may be executed by a UE, a synchronous resource allocation device, or a control module for executing the synchronous resource allocation method in the synchronous resource allocation device. In the embodiments of the present application, the synchronous resource allocation device provided by the embodiments of the present application will be described taking the case where a UE executes the synchronous resource allocation method as an example.

[0151] 10 is a schematic diagram illustrating a possible structure of a synchronization resource configuration device according to an embodiment of the present application. As shown in FIG. 10, the synchronization resource configuration device 60 may include a determination module 61.

[0152] The determination module 61 is for determining a target placement parameter, which is used for transmitting synchronization resources on at least two carriers, the target placement parameter including at least one of target time information and target interval information, the target time information for indicating a target time, the target interval information including at least one of an interval of the target time and an interval of the synchronization resource, the target time including at least a transmission time of the synchronization resource, and at least some of the placement parameters of the synchronization resources on the at least two carriers are the same.

[0153] In a possible embodiment, the target time information includes at least one of the following: a length of the target time, a start point of the target time, an end point of the target time, and an SCS of the target time.

[0154] In a possible embodiment, the target time length is any one of a first time length on a first carrier, a first time length on a second carrier, and a preset length, where the second carrier is the carrier with the longest first time length among all carriers, and the first time is a time range in which synchronization resources are located on at least two carriers; and / or The origin of the time of interest includes an origin of the time of interest on the first carrier and an origin of the time of interest on another carrier, the origin of the time of interest on the other carrier being obtained by a first distance, the first distance being the distance between the origin of the time of interest on the other carrier and the first location, the first distance being determined by a second distance, the second distance being the distance between the origin of the time of interest on the first carrier and the first location; and / or the end point of the time of interest includes an end point of the time of interest on the first carrier and an end point of the time of interest on another carrier, the end point of the time of interest on the other carrier being obtained by a third distance, the third distance being the distance between the end point of the time of interest on the other carrier and the first location, the third distance being determined by a fourth distance, the fourth distance being the distance between the end point of the time of interest on the first carrier and the first location; and / or The SCS for the above target time satisfies one of the following: the SCS is the same as the SCS for the first time on the first carrier; the SCS for the target time on each carrier is the same as the SCS for the first time on each carrier; the SCS is the same as the largest SCS among all carriers; the SCS is the same as the smallest SCS among all carriers; or the SCS is a preset SCS.

[0155] The first carrier is a carrier selected by the UE from at least two carriers, and the first position is one of the following: the position of DFN0 / SFN0 on the carrier, the start point of a synchronization period on the carrier, or the end point of a synchronization period on the carrier.

[0156] In a possible embodiment, the target interval information is determined by at least one of predetermined interval information, synchronization resource grouping information, common interval information, reference interval information, and SCS of a carrier.

[0157] In a possible embodiment, the predetermined interval information is: Only one S-SSB is transmitted in a transmission cycle. The number of S-SSBs in each synchronization resource is one; There is only one target time in the transmission cycle. There is no interval of interest, There is no spacing between S-SSB groups, In the S-SSB group, there is no S-SSB interval. The number of S-SSB groups is 1.

[0158] In a possible embodiment, in the first case, the target interval information is: There is no interval of interest, There is no spacing between S-SSB groups, Regarding the spacing between S-SSBs within an S-SSB group, at least one of the following is satisfied: in a carrier that transmits one S-SSB within one period, there is no spacing between S-SSBs within the S-SSB group; or, in a carrier that transmits multiple S-SSBs within one period, the spacing between S-SSBs within the S-SSB group is 0.

[0159] The first case above satisfies that the synchronization resource grouping information is intended to indicate that when there are at least two carriers transmitting multiple S-SSBs within one period, the number of S-SSB groups transmitted by each carrier within one period is set to 1.

[0160] In a possible embodiment, in the second case, the target interval information is: For a target time interval, if there is a carrier among at least two carriers that transmits only one S-SSB within one period, the target time interval does not exist, or if there is no carrier that transmits only one S-SSB within one period, the target time interval is configured, pre-configured, pre-defined by a network side device, or autonomously determined by a UE, or instructed by another UE; Regarding the S-SSB group interval, if there is a carrier that transmits only one S-SSB among at least two carriers within one period, there is no S-SSB group interval, or if there is no carrier that transmits only one S-SSB within one period, the S-SSB group interval and the target time interval are the same; Regarding the spacing between S-SSBs within an S-SSB group, if there is a carrier among at least two carriers that transmits only one S-SSB within one period, then in the carrier that transmits only one S-SSB within one period, there is no spacing between S-SSBs within the S-SSB group, or in the carrier that transmits multiple S-SSBs within one period, the spacing between S-SSBs within the S-SSB group is 0, and if there is no carrier that transmits only one S-SSB within one period, then in each carrier, the spacing between S-SSBs within the S-SSB group is 0; Regarding the number of S-SSBs in an S-SSB group, at least one of the following conditions is satisfied: the number of S-SSBs included in each S-SSB group on any carrier is the ratio of the number of S-SSBs transmitted by any carrier in one period to the number of S-SSB groups.

[0161] In the second case, the synchronization resource grouping information satisfies the requirement that when there are at least two carriers transmitting multiple S-SSBs within one period, the number of S-SSB groups transmitted by each carrier within one period is assigned to a first numerical value, the first numerical value being the number of S-SSBs transmitted within one period on a third carrier, and the third carrier being the carrier with the smallest number of S-SSBs transmitted within one period.

[0162] In a possible embodiment, the target interval information being determined by common interval information includes the common interval information being configured, pre-configured, pre-defined by network side equipment, indicated by other user equipment, or autonomously determined by the UE, and the interval information of at least two carriers and the common interval information being the same.

[0163] In a possible embodiment, the target interval information is determined by reference interval information, If there is a first synchronization resource that is not located within a time period determined by the reference interval information among the synchronization resources waiting to be transmitted by the fourth carrier, not transmitting the first synchronization resource or all of the synchronization resources; The present invention includes at least one of the following: there is a second time, which is a time when synchronization resources are not transmitted on the fifth carrier, and when the second time is aligned with the time determined by the reference interval information, the information transmitted at the second time is filling information or predetermined information.

[0164] In a possible embodiment, the common interval information or reference interval information includes at least one of the following: SCS of the S-SSB, the number of S-SSBs, the number of S-SSB groups, the interval of interest, and the interval of the S-SSBs.

[0165] In a possible embodiment, the target interval information is determined by the SCS of the carrier, including any one of the following: determined by a configuration parameter of a synchronization resource in the first carrier; and the number of synchronization resources in different carriers is a preset value.

[0166] In one possible embodiment, the target configuration parameter is determined by one of the following: a first time, a configuration by a network side device, a pre-configuration, an instruction from another user equipment, or an autonomous decision by the UE. The first time is a time range in which synchronization resources of at least two carriers are located.

[0167] In a possible embodiment, the resources during the first time period do not belong to a resource pool or are not used for transmitting a predetermined channel / a predetermined signal / a predetermined signaling.

[0168] In a possible embodiment, the resources within the target time do not belong to a resource pool or the resources within the target time are not used for transmitting a predetermined channel / a predetermined signal / a predetermined signaling.

[0169] In a possible embodiment, the relationship between the synchronization resources and the DRX mechanism in the at least two carriers is as follows: The target time and the DRX activation time overlap at least partially; The target time interval is an integer multiple of the DRX cycle, or the DRX cycle is an integer multiple of the target time interval; the first time and the DRX activation time at least partially overlap; the first time interval is an integer multiple of the DRX period, or the DRX period is an integer multiple of the first time interval; The period of the synchronization resource is an integer multiple of the DRX period, or the DRX period is an integer multiple of the period of the synchronization resource; The first time / target time / synchronization resource is located before the DRX activation time; allowing the UE to transmit a synchronization signal on a synchronization resource located during a DRX deactivation time; and not allowing the UE to transmit synchronization signals on synchronization resources located during the DRX deactivation time. The first time period is a time range in which synchronization resources of at least two carriers are located.

[0170] In possible embodiments, the at least partial overlap between the target time and the DRX activation time includes at least one of the following: a start point of the target time and a start point of the DRX activation time are the same; an end point of the target time and an end point of the DRX activation time are the same; a first overlap length is equal to or greater than a first preset threshold; a ratio of the first overlap length to the target time / DRX activation time / DRX period is equal to or greater than a second preset threshold; the first overlap length is an overlap length between the target time and the DRX activation time; and / or At least a partial overlap between the first time and the DRX activation time includes at least one of the following: a start point of the first time and a start point of the DRX activation time are the same; an end point of the first time and an end point of the DRX activation time are the same; the second overlap length is equal to or greater than a third preset threshold; or a ratio of the second overlap length to the first time / DRX activation time / DRX period is equal to or greater than a fourth preset threshold, wherein the second overlap length is the overlap length between the first time and the DRX activation time.

[0171] In a possible embodiment, the target configuration parameter further includes first information for indicating whether synchronization resources are configured on carriers, where the first information includes at least one of: synchronization resources are configured only on the first carrier, synchronization resources are configured on all carriers for CA transmission, synchronization resources are configured on carriers actually used for CA transmission, synchronization resources are configured only on carriers in the first set, or synchronization resources are configured only on carriers in the second set.

[0172] In a possible embodiment, the first information is further for indicating that the number of synchronization resources is the same in the carriers on which the synchronization resources are arranged.

[0173] In a possible embodiment, the target configuration parameters further include a content of a synchronization resource, the content of the synchronization resource including at least one of a DFN, a slot index, a coverage, a duplex configuration, and an SLSS identifier.

[0174] In a possible embodiment, the DFN value in the synchronization resource is the same as or different from the DFN value in the synchronization resource in the first carrier, or is a preset value; and / or The slot index value in the synchronization resource is the same as or different from the slot index value in the synchronization resource in the first carrier, or is a preset value; and / or The coverage value in the synchronization resource is the same as or different from the coverage value in the synchronization resource in the first carrier, or is a preset value; and / or The TDD allocation in the synchronization resource is the same as or different from the TDD allocation in the synchronization resource in the first carrier, or is a preset value; and / or The SLSS identifier in the synchronization resource may be the same as or different from the SLSS identifier in the synchronization resource in the first carrier, or may be a preset value.

[0175] In a possible embodiment, carrier synchronization is performed for at least two carriers by at least one of timing synchronization and transmission direction synchronization, where the timing synchronization is to use a synchronization reference source corresponding to a first carrier as a synchronization reference for other carriers, the transmission direction synchronization is to use the transmission direction of a synchronization resource in the first carrier as the transmission direction of a target synchronization resource in the other carriers, and the target synchronization resource is a synchronization resource in the other carrier that is aligned with the synchronization resource of the first carrier.

[0176] In a possible embodiment, the timing synchronization includes at least one of frame boundary alignment, subframe boundary alignment, slot boundary alignment, symbol boundary alignment, and second / millisecond / microsecond level alignment.

[0177] In a possible embodiment, the other carriers are any one of all carriers for CA transmission, carriers actually used for CA transmission, carriers on which synchronization resources are allocated, carriers in the first set, and carriers in the second set.

[0178] In a possible embodiment, the UE transmits synchronization signals only on the first carrier; The UE determines whether to transmit a synchronization signal on each of the at least two carriers based on values ​​of the interval information on the at least two carriers; and when transmission exceeds the capability of the UE, the UE autonomously determines the carrier on which to transmit the synchronization signal.

[0179] In a possible embodiment, the first carrier is determined by at least one of the following: SCS of the carrier, priority of the carrier, synchronization priority of the carrier, synchronization reference of the carrier, SLSS identifier of the carrier, duplex pattern of the carrier, number of synchronization resources of the carrier, number of S-SSBs of the carrier, frequency of the carrier, frequency band / frequency range of the carrier, ARFCN of the carrier, GSCN of the carrier, coverage status corresponding to the carrier, whether a base station / GNSS is detected on the carrier, and index of the carrier.

[0180] In a possible embodiment, the first carrier is one of the carrier with the largest SCS, the carrier with the smallest SCS, and the carrier with a predetermined SCS.

[0181] In a possible embodiment, the first carrier is one of the following: a carrier with the highest priority when selecting a carrier, a carrier with the lowest priority when selecting a carrier, a carrier with a predetermined priority, a carrier with the highest priority when selecting a synchronization reference, a carrier with the lowest priority when selecting a synchronization reference; and / or The first carrier is either a carrier whose synchronization priority is a base station or a carrier whose synchronization priority is a GNSS.

[0182] In a possible embodiment, the first carrier is one of a carrier whose synchronization reference is a base station, a carrier whose synchronization reference is a GNSS, and a carrier whose synchronization reference is a synchronization reference user equipment; and / or The first carrier is one of the carrier with the smallest SLSS identifier, the carrier with the predetermined SLSS identifier, and / or The first carrier is one of a carrier with a TDD duplex pattern, a carrier with a TDD configuration, a carrier in an amp band, a carrier with an FDD duplex pattern, a carrier without a TDD configuration, and a carrier in a paired band; and / or The first carrier is a carrier having a predetermined number of synchronization resources; and / or The first carrier is one of the carriers having the smallest number of S-SSBs within one synchronization period, the carrier having the largest number of S-SSBs within one synchronization period, and the carrier having a predetermined number of S-SSBs within one synchronization period.

[0183] In a possible embodiment, the first carrier is one of the following: a carrier with the lowest frequency, a carrier with the highest frequency, a carrier with a predetermined frequency; and / or The first carrier is one of the following: a carrier with the lowest frequency band / frequency range, a carrier with the highest frequency band / frequency range, a carrier with the smallest frequency band / frequency range, a carrier with the largest frequency band / frequency range, or a carrier with a predetermined frequency band / frequency range.

[0184] In a possible embodiment, the first carrier is one of the carrier with the smallest ARFCN, the carrier with the largest ARFCN, and the carrier with a predetermined ARFCN; and / or The first carrier is one of the carrier with the smallest GSCN, the carrier with the largest GSCN, and the carrier with a predetermined GSCN; and / or The first carrier is one of an in-coverage carrier and an out-of-coverage carrier, and / or The first carrier is one of a carrier on which a base station is detected and a carrier on which a GNSS is detected, and / or The first carrier is one of the carrier with the smallest index, the carrier with the largest index, and the carrier with a predetermined index.

[0185] An embodiment of the present application provides a synchronization resource allocation device. When multiple component carriers are used for carrier aggregation, a UE can determine a target time, a target time interval, and / or a synchronization resource interval for transmitting synchronization resources on each carrier, and the determined synchronization resource allocation parameters on these carriers are partially or completely the same. This aligns the synchronization resources on each component carrier, avoiding problems such as high synchronization resource occupancy in the time domain and collisions between synchronization signals and other signals, thereby improving resource utilization and ensuring the reliability of sidelink services.

[0186] The synchronization resource configuration device in the embodiment of the present application may be a device or UE having an operating system, or may be a component, integrated circuit, or chip in the UE. The device or UE may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of UE 11 listed above. The non-mobile terminal may be, but is not limited to, a server, a network-attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine (ATM), a kiosk, etc., but is not specifically limited in the embodiment of the present application.

[0187] The synchronous resource configuration device provided by the embodiments of the present application can realize each process realized by the embodiments of the above method and can achieve the same technical effects, so to avoid duplication, they will not be repeated here.

[0188] Optionally, as shown in Fig. 11, the embodiments of the present application further provide a communication device 500, including a processor 501, a memory 502, and a program or command stored in the memory 502 and executable by the processor 501. For example, when the communication device 500 is a UE, the program or command can realize each process of the above method embodiments when executed by the processor 501, and achieve the same technical effects.

[0189]

[0013] The present application also provides a UE, comprising a processor and a communication interface, for determining target configuration parameters, the target configuration parameters being used for transmitting synchronization resources on at least two carriers, the target configuration parameters including at least one of target time information and target interval information, the target time information for indicating a target time, the target interval information including at least one of an interval between the target time and an interval between synchronization resources, the target time including at least a time for transmitting the synchronization resources, and at least some of the configuration parameters of the synchronization resources on the at least two carriers being the same. This UE embodiment corresponds to the above-mentioned UE-side method embodiment, and the implementation processes and embodiments of the above-mentioned method embodiment can all be applied to this UE embodiment to achieve the same technical effects. Specifically, Figure 12 is a schematic diagram of a hardware structure for implementing a UE in the present application.

[0190] The UE 100 includes at least some components such as, but not limited to, a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110.

[0191] As will be appreciated by those skilled in the art, the UE 100 may further include a power source (e.g., a battery) for powering each component. The power source is logically connected to the processor 110 by a power management system, which enables the power management system to implement functions such as charge / discharge management and power consumption management. The UE structure shown in FIG. 12 is not intended to limit the UE, and the UE may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, which will not be repeated here.

[0192] In the embodiment of the present application, the input unit 104 may include a graphics processing unit (GPU) 1041 for processing image data of static or video images captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 1042. The display unit 106 may include a display panel 1061, which may be configured as a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. The other input devices 1072 may include, but are not limited to, a physical keyboard, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a control lever, which will not be described again here.

[0193] In the embodiment of the present application, the radio frequency unit 101 receives downlink data from the network side device and sends it to the processor 110 for processing, and also sends uplink data to the network side device. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0194] The memory 109 may be used to store software programs or commands and various data. The memory 109 may primarily include a program or command storage area and a data storage area, which may store an operating system, an application or command required for at least one function (e.g., audio playback function, image playback function, etc.). The memory 109 may also include high-speed random access memory or nonvolatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, the memory 109 may include at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

[0195] Processor 110 may include one or more processing units. Optionally, processor 110 may integrate an application processor that mainly processes an operating system, a user interface, and applications or commands, and a modem processor, such as a baseband processor that mainly processes wireless communications. Of course, the modem processor does not have to be integrated into processor 110.

[0196] The processor 110 is for determining a target placement parameter, the target placement parameter being used for transmitting synchronization resources on at least two carriers, the target placement parameter including at least one of target time information and target interval information, the target time information being for indicating a target time, the target interval information including at least one of an interval of the target time and an interval of the synchronization resources, the target time including a time for transmitting at least the synchronization resources, and at least a portion of the placement parameters of the synchronization resources on the at least two carriers being the same.

[0197] An embodiment of the present application provides a UE, which, when multiple component carriers are used for carrier aggregation, can determine a target time, a target time interval, and / or a synchronization resource interval for transmitting synchronization resources on each carrier, and the determined synchronization resource allocation parameters on these carriers are partially or completely the same, thereby aligning the synchronization resources on each component carrier and avoiding problems such as high synchronization resource occupancy in the time domain and collisions between synchronization signals and other signals, thereby improving resource utilization and ensuring the reliability of sidelink services.

[0198] The UE provided by the embodiments of the present application can implement each process implemented by the embodiments of the above method and achieve the same technical effects, so to avoid redundancy, they will not be repeated here.

[0199] The embodiments of the present application further provide a readable storage medium, which stores a program or command, which, when executed by a processor, realizes each process of the above-described embodiment of the synchronous resource allocation method, and can achieve the same technical effects, so that the description thereof will not be repeated here to avoid redundancy.

[0200] The processor is the processor in the UE described in the above embodiment. The computer-readable storage medium includes a computer-readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0201] The embodiments of the present application further provide a chip, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled together, the processor for executing programs or commands to realize the processes of the embodiments of the above-mentioned synchronous resource allocation method, which can achieve the same technical effects, and therefore will not be repeated here to avoid redundancy.

[0202] The chip described in the embodiments of the present application is also called a system on a chip, a system chip, a chip system, or an SoC.

[0203] It should be noted that, as used herein, the terms "comprise," "consist," and any other variations thereof are intended to include a non-exclusive inclusion, such that a process, method, article, or apparatus comprising a set of elements includes not only those elements but also other elements not expressly specified or inherent in such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. Furthermore, the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed herein, and may further include performing functions substantially simultaneously or in the reverse order, depending on the functionality involved. For example, the methods described above may be performed in a different order than described, and further, steps may be added, omitted, or combined. Furthermore, features described with reference to some examples may be combined with other examples.

[0204] From the above description of the embodiments, it will be clear to those skilled in the art that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform. Of course, hardware implementation is also possible, but in many cases the former is a more preferred embodiment. Based on this view, the technical means of the present application, or a portion that contributes to the prior art, can be embodied as a software product, and the computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a plurality of commands that cause a terminal (which may be a mobile phone, computer, server, air conditioner, network device, etc.) to execute the methods described in each embodiment of the present application.

[0205] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can obtain without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. 1. A synchronization resource allocation method, comprising: a step of determining, by a user equipment (UE), target allocation parameters to be used for transmitting synchronization resources on at least two carriers; the target allocation parameters including target interval information, the target interval information including intervals of synchronization resources; The target allocation parameters of the synchronization resources of the at least two carriers are all the same, and the target interval information is determined by common interval information; The common interval information includes the number of S-SSBs and the interval between S-SSBs.

2. The target placement parameter further includes target time information, the target time information is for indicating a target time, and the target time includes at least a transmission time of a synchronization resource; The method of claim 1 , wherein the target time information includes at least one of a length of the target time, a start point of the target time, an end point of the target time, and a subcarrier spacing SCS of the target time.

3. the target time length is any one of a first time length on a first carrier, a first time length on a second carrier, and a preset length, the second carrier being a carrier having the longest first time length among all carriers, and the first time being a time range in which synchronization resources on the at least two carriers are located; and / or the origin of the time of interest includes an origin of the time of interest on a first carrier and an origin of the time of interest on another carrier, the origin of the time of interest on the other carrier is obtained by a first distance, the first distance being a distance between the origin of the time of interest on the other carrier and a first location, the first distance being determined by a second distance, the second distance being a distance between the origin of the time of interest on the first carrier and the first location; and / or the end point of the time of interest includes an end point of the time of interest on a first carrier and an end point of the time of interest on another carrier, the end point of the time of interest on the other carrier is obtained by a third distance, the third distance being a distance between the end point of the time of interest on the other carrier and a first location, the third distance being determined by a fourth distance, the fourth distance being a distance between the end point of the time of interest on the first carrier and the first location; and / or The SCS of the target time satisfies any one of the following: the SCS is the same as the SCS of the first time on the first carrier; the SCS of the target time on each carrier is the same as the SCS of the first time on each carrier; the SCS is the same as the largest SCS of all carriers; the SCS is the same as the smallest SCS of all carriers; or the SCS is a preset SCS; 3. The method of claim 2, wherein the first carrier is a carrier selected by the UE from the at least two carriers, and the first position is one of a position of a direct frame number DFN0 / system frame number SFN0 on the carrier, a start point of a synchronization period on the carrier, and an end point of a synchronization period on the carrier.

4. The target interval information further includes: predetermined interval information, Synchronization resource grouping information, Reference interval information, 10. The method of claim 1, wherein the SCS of the carrier is determined by at least one of:

5. The predetermined interval information is transmitting only one sidelink synchronization signal block (S-SSB) in a transmission period; The number of S-SSBs in each synchronization resource is one; There is only one target time in the transmission cycle. There is no interval of interest, There is no gap between S-SSB groups; There is no S-SSB interval in the S-SSB group; The method of claim 4, including at least one of: the number of S-SSB groups is one.

6. In a first case, the target interval information is There is no interval of interest, There is no gap between S-SSB groups; Regarding the spacing between S-SSBs within an S-SSB group, at least one of the following is satisfied: in a carrier transmitting one S-SSB within one period, there is no spacing between S-SSBs within the S-SSB group; or, in a carrier transmitting multiple S-SSBs within one period, the spacing between S-SSBs within the S-SSB group is 0; In the first case, the synchronization resource grouping information is for indicating that when there are at least two carriers transmitting multiple S-SSBs in one period, the number of S-SSB groups transmitted by each carrier in one period is set to 1; Or, In a second case, the target interval information is Regarding the target time interval, if there is a carrier among the at least two carriers that transmits only one S-SSB within one period, the target time interval does not exist, or if there is no carrier that transmits only one S-SSB within one period, the target time interval is configured, pre-configured, pre-defined by a network side device, or autonomously determined by the UE, or instructed by another UE; Regarding the interval between S-SSB groups, if there is a carrier that transmits only one S-SSB within one period among the at least two carriers, there is no interval between S-SSB groups, or if there is no carrier that transmits only one S-SSB within one period, the interval between S-SSB groups is the same as the interval of the target time; With regard to the interval between S-SSBs within an S-SSB group, if there is a carrier among the at least two carriers that transmits only one S-SSB within one period, then there is no interval between S-SSBs within the S-SSB group in the carrier that transmits only one S-SSB within one period, or if there is a carrier that transmits multiple S-SSBs within one period, then the interval between S-SSBs within the S-SSB group is 0, and if there is no carrier that transmits only one S-SSB within one period, then the interval between S-SSBs within the S-SSB group is 0 in each carrier; Regarding the number of S-SSBs in an S-SSB group, the number of S-SSBs included in each S-SSB group on any carrier is the ratio of the number of S-SSBs transmitted by said any carrier in one period to the number of S-SSB groups; The second case satisfies that the synchronization resource grouping information is for indicating that when there are at least two carriers transmitting multiple S-SSBs within one period, the number of S-SSB groups transmitted by each carrier within one period is assigned to a first numerical value, the first numerical value being the number of S-SSBs transmitted within one period on a third carrier, and the third carrier being the carrier with the smallest number of S-SSBs transmitted within one period.

7. The target interval information is determined by common interval information, 2. The method of claim 1, wherein the common spacing information is configured by a network side device, pre-configured, pre-defined, indicated by another user equipment, or autonomously determined by the UE, and the spacing information of the at least two carriers and the common spacing information are the same.

8. The target interval information is determined by the reference interval information, If there is a first synchronization resource that is not located within a time period determined by the reference interval information among the synchronization resources waiting to be transmitted by the fourth carrier, not transmitting the first synchronization resource or all of the synchronization resources; a second time period exists during which no synchronization resource is transmitted on the fifth carrier, and when the second time period is aligned with a time period determined by the reference interval information, the information transmitted during the second time period is filler information or predetermined information; and / or the common interval information further includes at least one of an SCS of an S-SSB, a number of S-SSB groups, and a target time interval, or the reference interval information includes at least one of an SCS of an S-SSB, a number of S-SSBs, a number of S-SSB groups, a target time interval, and an S-SSB interval; and / or The target interval information is determined by the SCS of the carrier, determined by a configuration parameter of synchronization resources in the first carrier; The method of claim 4, wherein the number of synchronization resources in different carriers is a preset value.

9. The target configuration parameter is determined at a first time by any one of configuration by a network side device, pre-configuration, an instruction by another user equipment, and an autonomous decision by the UE; the first time is a time range in which synchronization resources on the at least two carriers are located; The resource during the first time period does not belong to a resource pool; Or, The resources within the first time period are not used for transmitting a predetermined channel / a predetermined signal / a predetermined signaling; and / or The resource during the target time does not belong to a resource pool, Or, The method of claim 2 , wherein resources within the target time period are not used for transmitting a predetermined channel / predetermined signal / predetermined signaling.

10. The relationship between the synchronization resources and the discontinuous reception DRX mechanism on the at least two carriers is as follows: the target time and the DRX activation time overlap at least in part; the target time interval is an integer multiple of a DRX cycle, or the DRX cycle is an integer multiple of the target time interval; the first time and the DRX activation time at least partially overlap; the first time interval is an integer multiple of the DRX cycle, or the DRX cycle is an integer multiple of the first time interval; The period of the synchronization resource is an integer multiple of the DRX period, or the DRX period is an integer multiple of the period of the synchronization resource; the first time / said target time / synchronization resource is located before a DRX activation time; allowing the UE to transmit a synchronization signal on a synchronization resource located during a DRX deactivation time; and not allowing transmission of synchronization signals by the UE on synchronization resources located in DRX deactivation times; the first time is a time range in which synchronization resources on the at least two carriers are located; the at least partial overlap between the target time and the DRX activation time includes at least one of: a start point of the target time and a start point of the DRX activation time are the same; an end point of the target time and an end point of the DRX activation time are the same; a first overlap length is equal to or greater than a first preset threshold; or a ratio of the first overlap length to the target time / the DRX activation time / DRX cycle is equal to or greater than a second preset threshold, wherein the first overlap length is an overlap length between the target time and the DRX activation time; and / or 3. The method of claim 2, wherein at least a portion of the overlap between the first time and a DRX activation time includes at least one of: a start point of the first time and a start point of the DRX activation time being the same; an end point of the first time and an end point of the DRX activation time being the same; a second overlap length being equal to or greater than a third preset threshold; and a ratio of the second overlap length to the first time / the DRX activation time / DRX cycle being equal to or greater than a fourth preset threshold, wherein the second overlap length is an overlap length between the first time and the DRX activation time.

11. The target allocation parameter further includes first information for indicating whether synchronization resources are allocated in a carrier; The first information includes at least one of: synchronization resources are allocated only in a first carrier; synchronization resources are allocated in all carriers for carrier aggregation CA transmission; synchronization resources are allocated in carriers actually used for CA transmission; synchronization resources are allocated only in carriers in a first set; and synchronization resources are allocated only in carriers in a second set; The first information is further for indicating that the number of synchronization resources is the same in the carriers on which the synchronization resources are arranged; Or, The target configuration parameters further include a content of a synchronization resource, the content of the synchronization resource including at least one of a DFN, a slot index, a coverage, a duplex configuration, and a sidelink synchronization signal SLSS identifier; The DFN value of the synchronization resource is the same as or different from the DFN value of the synchronization resource of the first carrier, or is a preset value; and / or The slot index value of the synchronization resource is the same as or different from the slot index value of the synchronization resource of the first carrier, or is a preset value; and / or The coverage value in the synchronization resource is the same as or different from the coverage value in the synchronization resource in the first carrier, or is a preset value; and / or The TDD allocation in the synchronization resource is the same as or different from the TDD allocation in the synchronization resource in the first carrier, or is a preset value; and / or The method of claim 1 , wherein the SLSS identifier in the synchronization resource is the same as or different from the SLSS identifier in the synchronization resource in the first carrier, or is a preset value.

12. performing carrier synchronization for the at least two carriers by at least one of timing synchronization and transmission direction synchronization; the timing synchronization is to use a synchronization reference source corresponding to a first carrier as a synchronization reference for other carriers; the transmission direction synchronization is to use a transmission direction of a synchronization resource in the first carrier as a transmission direction of a target synchronization resource in the other carriers, and the target synchronization resource is a synchronization resource in the other carrier that is aligned with the synchronization resource of the first carrier; the timing synchronization includes at least one of frame boundary alignment, subframe boundary alignment, slot boundary alignment, symbol boundary alignment, and second / millisecond / microsecond level alignment; and / or 2. The method of claim 1, wherein the other carriers are any one of all carriers for CA transmission, carriers actually used for CA transmission, carriers on which synchronization resources are allocated, carriers in a first set, and carriers in a second set.

13. the UE transmitting synchronization signals only on the first carrier; The UE determines whether to transmit a synchronization signal on each of the at least two carriers based on values ​​of the interval information on the at least two carriers; When transmission exceeds the capacity of the UE, the UE autonomously determines the carrier on which the synchronization signal is transmitted; 2. The method of claim 1, further comprising transmitting a synchronization signal of synchronization resources on the at least two carriers by any one of:

14. 4. The method of claim 3, wherein the first carrier is determined by at least one of: a carrier's SCS, a carrier priority, a carrier's synchronization priority, a carrier's synchronization reference, a carrier's SLSS identifier, a carrier's duplex pattern, a carrier's number of synchronization resources, a carrier's number of S-SSBs, a carrier's frequency, a carrier's frequency band / frequency range, a carrier's absolute radio frequency channel number ARFCN, a carrier's global synchronization channel number GSCN, a coverage status corresponding to the carrier, whether a base station / global satellite navigation system GNSS is detected on the carrier, and a carrier's index.

15. The first carrier is one of a carrier with the largest SCS, a carrier with the smallest SCS, and a carrier with a predetermined SCS; and / or the first carrier is any one of a carrier having the highest priority when selecting a carrier, a carrier having the lowest priority when selecting a carrier, a carrier having a predetermined priority, a carrier having the highest priority when selecting a synchronization reference, and a carrier having the lowest priority when selecting a synchronization reference; and / or The first carrier is one of a carrier whose synchronization priority is a base station and a carrier whose synchronization priority is a GNSS; and / or The first carrier is any one of a carrier whose synchronization reference is a base station, a carrier whose synchronization reference is a GNSS, and a carrier whose synchronization reference is a synchronization reference user equipment; and / or The first carrier is one of a carrier with the smallest SLSS identifier and a carrier with a predetermined SLSS identifier; and / or The first carrier is any one of a carrier whose duplex pattern is TDD, a carrier that has acquired a TDD configuration, a carrier in an ampere band, a carrier whose duplex pattern is frequency division duplex FDD, a carrier that has not acquired a TDD configuration, and a carrier in a paired band; and / or the first carrier is a carrier having a predetermined number of synchronization resources; and / or The first carrier is any one of a carrier having the smallest number of S-SSBs within one synchronization period, a carrier having the largest number of S-SSBs within one synchronization period, and a carrier having a predetermined number of S-SSBs within one synchronization period; and / or the first carrier is any one of a carrier having the lowest frequency, a carrier having the highest frequency, and a carrier having a predetermined frequency; and / or the first carrier is any one of a carrier having the lowest frequency band / frequency range, a carrier having the highest frequency band / frequency range, a carrier having the smallest frequency band / frequency range, a carrier having the largest frequency band / frequency range, and a carrier having a predetermined frequency band / frequency range; and / or the first carrier is one of a carrier with the smallest ARFCN, a carrier with the largest ARFCN, and a carrier with a predetermined ARFCN; and / or the first carrier is one of a carrier with the smallest GSCN, a carrier with the largest GSCN, and a carrier with a predetermined GSCN; and / or The first carrier is one of an in-coverage carrier and an out-of-coverage carrier; and / or The first carrier is one of a carrier that detects a base station and a carrier that detects a GNSS, and / or The method of claim 14 , wherein the first carrier is one of the carrier with the lowest index, the carrier with the highest index, and a carrier with a predetermined index.

16. A synchronization resource allocation device comprising a determination module, The determining module is for determining a target placement parameter, the target placement parameter being used for transmitting synchronization resources on at least two carriers, the target placement parameter including target interval information, and the target interval information including an interval of the synchronization resources; The target allocation parameters of the synchronization resources of the at least two carriers are all the same, and the target interval information is determined by common interval information; The common interval information includes the number of S-SSBs and the interval between S-SSBs.

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