WO2023186140A1

WO2023186140A1 - Carrier determination method and apparatus, and terminal and readable storage medium

Info

Publication number: WO2023186140A1
Application number: PCT/CN2023/085680
Authority: WO
Inventors: 李萍; 刘思綦; 纪子超
Original assignee: 维沃移动通信有限公司
Priority date: 2022-04-02
Filing date: 2023-03-31
Publication date: 2023-10-05
Also published as: CN116939798A

Abstract

The present application relates to the technical field of communications. Disclosed are a carrier determination method and apparatus, and a terminal and a readable storage medium. The carrier determination method in the embodiments of the present application comprises: a terminal determining a first carrier, wherein the first carrier is used for determining synchronization information of the first carrier and/or synchronization information of a second carrier.

Description

Carrier determination method, device, terminal and readable storage medium

Cross-references to related applications

This application claims priority to Chinese Patent Application No. 202210351383.1 filed in China on April 2, 2022, the entire content of which is incorporated herein by reference.

Technical field

This application belongs to the field of communication technology, and specifically relates to a carrier determination method, device, terminal and readable storage medium.

Background technique

Currently, when carrier aggregation technology is applied in the New Radio (NR) sidelink Sidelink, due to inconsistent timing of synchronization references between different carriers, a series of problems may occur, such as half-duplex problems in transmitting and receiving, and transmit power. The problem of attenuation affects the transmission efficiency of the communication system.

In this way, how to achieve timing synchronization between carriers has become an urgent problem to be solved.

Contents of the invention

Embodiments of the present application provide a carrier determination method, device, terminal and readable storage medium, which can solve the problem of low transmission efficiency of the communication system caused by inconsistent timing of synchronization references between different carriers.

In the first aspect, a carrier determination method is provided, applied to a terminal, and the method includes:

The terminal determines a first carrier, and the first carrier is used to determine synchronization information of the first carrier and/or synchronization information of the second carrier.

In a second aspect, a carrier determination device is provided, which device includes: a determination module; the determination module is used to determine the first carrier, and the first carrier is used to determine the synchronization information of the first carrier and/or the synchronization of the second carrier. information.

In a third aspect, a terminal is provided. The terminal includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.

In a fourth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used to determine a first carrier, and the first carrier is used to determine synchronization information of the first carrier and/or synchronization of the second carrier. information.

In a fifth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented.

In a sixth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect. .

In a seventh aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the carrier wave as described in the first aspect Identify the steps of the method.

In this embodiment of the present application, the terminal determines the first carrier, and the first carrier is used to determine the synchronization information of the first carrier and/or the synchronization information of the second carrier. Through this method, the terminal can determine the first carrier and determine the synchronization information of itself and other carriers through the first carrier. Since the synchronization information corresponding to the first carrier and the second carrier is determined based on the first carrier, therefore It can realize timing synchronization of each carrier during data transmission, thereby improving the reliability of the communication system.

Description of drawings

Figure 1 is a block diagram of a wireless communication system applicable to the embodiment of the present application;

Figure 2 is a schematic diagram of a carrier determination method provided by an embodiment of the present application;

Figure 3 is a schematic structural diagram of a carrier determination device provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 5 is a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (Long Term Evolution, LTE)/LTE Evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and uses NR terminology in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PC), teller machines or self-service Terminal devices such as mobile phones, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), Smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side equipment 12 may include access network equipment or core network equipment, where the access network equipment 12 may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or Wireless access network unit. The access network device 12 may include a base station, a WLAN access point or a WiFi node, etc. The base station may be called a Node B, an evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio Base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home B-Node, Home Evolved B-Node, Transmitting Receiving Point (TRP) or all Some other appropriate terminology in the above field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the base station in the NR system is used as an example for introduction, and The specific type of base station is not limited.

The following is a noun explanation of some professional terms involved in the embodiments of this application:

1. Carrier aggregation

In order to meet the requirements of LTE-A's downlink peak speed of 1Gbps and uplink peak speed of 500Mbps, it is necessary to provide a maximum transmission bandwidth of 100MHz. However, due to the scarcity of continuous spectrum with such a large bandwidth, LTE-A proposed a carrier aggregation solution.

Carrier Aggregation (CA) is the aggregation of two or more carrier units (Component Carrier, CC) to support larger transmission bandwidth (up to 100MHz). In fact, each carrier unit corresponds to an independent cell. Generally, one carrier unit can be equated to one cell. The maximum bandwidth of each carrier unit is 20MHz. In order to efficiently utilize fragmented spectrum, carrier aggregation supports aggregation between different carrier units:

1) Carrier units with the same or different bandwidths

2) Adjacent or non-adjacent carrier units in the same frequency band

3) Carrier units in different frequency bands

It should be noted that from the perspective of baseband implementation, there is no difference between these situations. This mainly affects the complexity of the radio frequency unit implementation.

2.Sidelink

The Long Term Evolution (LTE) system supports sidelink (SL) transmission starting from the 12th release version, which is used for direct data transmission between end user equipment (User Equipment, UE) without using network equipment. It should be noted that Sidelink may be translated as side link, side link, edge link, etc.

LTE sidelink design supports two resource allocation modes, namely scheduled resource allocation (Scheduled resource allocation) mode and autonomous resource selection (autonomous resource selection) mode. The former is controlled by the network side device and allocates resources to each UE, while the latter allows the UE to select resources independently.

Starting from the 15th release, LTE supports sidelink carrier aggregation (Carrier Aggregation, CA). The CA of LTE sidelink is different from the Uu interface (that is, downlink and uplink). There is no distinction between primary carrier (Primary component carrier, PCC) and secondary carrier (Secondary component carrier, SCC). A UE in autonomous resource selection mode independently performs resource sensing and resource reservation on each CC.

LTE sidelink is designed for specific public safety matters (such as emergency communications in disaster sites such as fires or earthquakes), or vehicle to everything (V2X) communications. Internet of Vehicles communications include various services, such as basic safety communications, advanced (autonomous) driving, formations, sensor expansion, etc. Since LTE sidelink only supports broadcast communication, it is mainly used for basic security communications. Other advanced V2X services will be supported through NR sidelink.

The 5G NR system can be used in operating frequency bands above 6GHz that LTE does not support, supporting larger operating bandwidth. The NR system also supports Sidelink interface communication for direct communication between terminals.

3. NR Sidelink synchronization process

Side-link communication needs to consider different communication scenarios, such as within network coverage, outside network coverage, partial network coverage, and terminals located in different cells. In sideline communication, synchronization between terminals is required to ensure normal transmission and reception of data. Therefore, synchronization between terminals needs to be ensured in various scenarios.

In cellular communications, the terminal only needs to receive the synchronization signal of the network and obtain synchronization with the network to communicate. In side-line communication, since the terminal can be located inside the cell or outside the cell, and the two terminals performing side-line communication can be located in the same cell, different cells, or one is located inside the cell, the other is located outside the cell, or both are located Outside the cell, therefore, multiple types of synchronization references are introduced in side-line communications to meet the communication needs of various scenarios. Synchronization reference is a device that can provide synchronization information. The synchronization reference types supported in the NR Sidelink system can include global navigation satellite system (GNSS), eNB, gNB, UE, terminal internal clock, etc.

The terminal first searches for a synchronization reference before performing sideline communication. Since there are many types of synchronization references, the terminal may search for different types of synchronization references. These different types of synchronization references may be asynchronous. At this time, due to the synchronization to The time between terminals with different types of synchronization references may be asynchronous, resulting in the inability of side-line communication between them. Therefore, the priority of synchronization references is defined in side-line communication, and the terminal selects the synchronization reference with the highest priority, so that side-line communication is impossible. Communication should be kept globally synchronized as much as possible to avoid problems of reduced transmission efficiency or reduced reliability due to asynchronousness.

The synchronization reference priorities defined in the NR Sidelink system are as shown in the following table:

Since GNSS and gNB/ENB may be asynchronous, in the NR Sidelink system, when GNSS is configured as the highest priority, the P3/P4/P5 levels can be invalidated through network configuration information or preconfiguration information, that is, only Including P0/P1/P2/P6 levels. At this time, the synchronization information of all terminals (excluding terminals that obtain synchronization information based on the terminal's internal clock) is obtained based on GNSS, which can ensure that all terminals are synchronized. When gNB/eNB is configured as the highest priority, P3'/P4'/P5' cannot be disabled at this time because all networks cover Terminals outside the coverage area still need to obtain synchronization information based on GNSS.

Before performing sidelink communication, the terminal must first determine the synchronization reference and obtain synchronization information based on the synchronization reference; then, the terminal that meets the conditions sends the bypass synchronization source SLSS and the bypass broadcast channel PSBCH on the sidelink link to assist other terminals in synchronization. , the terminal needs to determine the SLSS identification ID corresponding to the SLSS sent by the terminal based on the synchronization reference, determine the PSBCH content based on the synchronization reference, and determine the synchronization reference for sending SLSS and PSBCH.

4. LTE V2X synchronization carrier selection process

In the LTE V2X carrier aggregation design, from the perspective of the sending end UE, its aggregated carriers all refer to the same synchronization reference to achieve timing synchronization on the aggregated carrier. Set A is defined in LTE V2X. Set A includes carriers that can potentially be used as the synchronization carrier. The UE selects Set B from Set A. Set B includes the available synchronization carrier set (the available set of synchronization carriers).

In one example, the terminal obtains synchronization parameters according to the network configuration, including a synchronization reference type (typeTxSync) parameter. The synchronization reference type parameter indicates that the terminal preferentially selects eNB or GNSS as the synchronization reference, that is, configuring eNB or GNSS to have a higher priority. , the following are several examples for the terminal to determine the synchronization carrier based on the synchronization reference type parameters:

Example 1: If the parameter typeTxSync is set to eNB, the terminal selects a CC from the intersection of Set A and the CC used for Sidelink transmission as the synchronization carrier;

Example 2: If the parameter typeTxSync is set to GNSS and the GNSS signal is reliable, the terminal selects a GNSS reliable CC from the intersection of Set A and the CC used for Sidelink transmission as the synchronization carrier;

Example 3: If the parameter typeTxSync is set to GNSS, and the GNSS signal is unreliable, select the synchronization reference for each CC in the intersection of Set A and the CC used for Sidelink transmission.

There are two situations in Example 3:

Case 1: If there is a UE whose synchronization reference is directly or indirectly synchronized to GNSS at least one CC, the terminal selects a CC from the CC of the UE whose synchronization reference is directly or indirectly synchronized to GNSS as the synchronization carrier.

Case 2: If the synchronization reference of all CCs is eNB, the terminal selects a CC from the intersection of Set A and the CC used for Sidelink transmission as the synchronization carrier

In another example, the terminal obtains synchronization parameters according to the network configuration, including synchronization reference type (typeTxSync) parameters. The following are several other examples of the terminal determining the synchronization carrier according to the synchronization reference type parameters:

Example 4: If the parameter typeTxSync is set to eNB, select each CC in the CC intersection of SetA and CA as a synchronization reference, and select the CC with the highest priority as the synchronization carrier according to the following priorities:

P1: The synchronization reference is the CC of the UE synchronized directly to the eNB

P2: The synchronization reference is the CC of the UE that is indirectly synchronized to the eNB.

P3: The synchronization reference is the CC of GNSS

P4: The synchronization reference is the CC of the UE synchronized directly to the GNSS of the eNB.

P5: The synchronization reference is the CC of the UE that is indirectly synchronized to the GNSS of the eNB.

P6: The synchronization reference is the CC of the remaining UEs

Example 5: If the parameter typeTxSync is set to GNSS and the GNSS signal is reliable, the terminal selects a GNSS reliable CC from the intersection of Set A and the CC used for Sidelink transmission as the synchronization carrier

Example 6: If the parameter typeTxSync is set to GNSS, and the GNSS signal is unreliable, select the synchronization reference for each CC in the intersection of Set A and the CC used for Sidelink transmission, and select the one with the highest priority according to the following priorities CC as synchronization carrier:

P1: The synchronization reference is the CC of the UE synchronized directly to the GNSS

P2: The synchronization reference is the CC of the UE that is indirectly synchronized to the GNSS

P3: The synchronization reference is the CC of the other UEs in priority.

The carrier determination method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios.

In related technology, when applying carrier aggregation technology in NR Sidelink, if the timing between different carriers is not aligned, it may cause a series of problems, such as half-duplex problems in transceiver and transmit power attenuation, thus affecting the NR Sidelink system. transmission efficiency.

Therefore, the same synchronization reference should be used for timing synchronization between different carriers. Specifically, the terminal can select a synchronization carrier and use the synchronization parameters of the synchronization carrier as a synchronization reference for other aggregated carriers, so that all aggregated carriers The synchronization timing of the combined carriers is obtained based on the same synchronization reference, so that all carrier aggregation is timing synchronized.

Further, since the synchronization/sidelink transmission configuration of each carrier may be different, for example, when GNSS is configured as the highest priority, the P3/P4/P5 levels can be invalidated through network information or preconfiguration information, that is, the SL of different carriers. -NbAsSync is configured differently so that its synchronization reference priority order can be different. For example, CC1 is configured with sl-NbAsSync true, the synchronization reference priority order of CC1 is P0/P1/P2/P3/P4/P5/P6, the synchronization reference is P3, CC3 is configured with sl-NbAsSync false, and the synchronization reference of CC3 The priority order is P0/P1/P2/P6, and the synchronization reference is P6. If CC1 is selected as the synchronization carrier, the terminal uses the synchronization reference of CC1 as the synchronization reference of CC3, that is, the synchronization reference of CC3 is determined to be P3. Due to the sl of CC3 The -NbAsSync configuration indicates that CC3 does not allow the network to be used as a synchronization reference, that is, the P3/P4/P5 levels are invalid. Therefore, the synchronization reference P3 of CC3 determined by the terminal conflicts with the sl-NbAsSync configuration of CC3. A possible problem in the above solution is that terminals that only support working in the Intelligent Transportation System (ITS) frequency band may not support the implementation of the network as a (direct/indirect) synchronization reference, so they cannot be used according to P3/P4/ P5 achieves synchronization, so it cannot achieve synchronization with the carrier using P3/P4/P5 as the synchronization reference.

This embodiment of the present application provides a carrier determination method, as shown in Figure 2. The method includes the following steps 201:

Step 201: The terminal determines the first carrier.

Wherein, the above-mentioned first carrier is used to determine the synchronization information of the first carrier and/or the synchronization information of the second carrier.

In this embodiment of the present application, the first carrier may include at least one of the following: a synchronization carrier, a reference carrier and a main carrier.

Optionally, in this embodiment of the present application, the above-mentioned second carrier may include at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Wherein, the above-mentioned second carrier set includes: carriers that can be used as synchronization carriers; the above-mentioned third carrier set includes: an available synchronization carrier set.

In the embodiment of the present application, CA transmission may also be called multi-carrier transmission, and the carriers transmitted by CA may also be called multi-carrier. For example, the second carrier may be at least part of the carriers of the above items, or at least part of the carriers of the above multiple items, or an intersection of the above multiple items, or a subset of the intersection of the above multiple items.

For example, the second carrier is part of the carriers in the second set of carriers, or part of the carriers in the third set of carriers, or part of the carriers in the second set of carriers and part of the carriers in the third set of carriers, or , is the same carrier in the second carrier set and the third carrier set, that is, the intersection of the second carrier set and the third carrier set.

It should be noted that the above is exemplified by taking the second carrier set and the third carrier set.

For example, the second carrier set may be Set A, and the third carrier set may be Set A.

For example, the above-mentioned carrier containing synchronization resources may be a carrier on which synchronization resources are configured or pre-configured.

Exemplarily, the above synchronization resources include at least one of the following:

The period of the synchronization signal;

The number of synchronization time slots within the cycle of the synchronization signal;

The number of repetitions of the synchronization signal;

Synchronization slot offset;

time interval;

SCS;

Wherein, the above-mentioned SCS includes at least one of the following: SCS of S-SSB, SCS of carrier.

Illustratively, the above synchronization resources are configured or preconfigured.

Optionally, in this embodiment of the present application, the above synchronization information is used for timing synchronization of transmission between various carriers of CA transmission and/or SL transmission.

Optionally, in this embodiment of the present application, the above synchronization information includes at least one of the following:

sync reference;

timing information;

time-frequency information.

It should be noted that a synchronization reference is a device that can provide synchronization information. The synchronization reference types supported in the new air interface NR sidelink (SL) system include GNSS, eNB, gNB, UE, and terminal internal clock. Synchronization between carriers can be achieved by using the synchronization reference of the synchronization carrier as the synchronization reference of other carriers.

Optionally, the above-mentioned UEs may include at least one of the following: UEs directly synchronized to GNSS, UEs indirectly synchronized to GNSS, UEs directly synchronized to gNB/eNB, UEs indirectly synchronized to gNB/eNB, and the remaining SyncRef UEs.

In the embodiment of this application, the synchronization reference may also be called a synchronization reference source.

Optionally, in the embodiment of the present application, the carrier determination method provided by the embodiment of the present application further includes the following step 202:

Step 202: The terminal determines the time-frequency information of the second carrier based on the synchronization information of the first carrier.

Optionally, the terminal uses the synchronization information of the first carrier as the synchronization information of the second carrier. For example, the terminal uses the synchronization reference of the first carrier as the synchronization reference of the second carrier.

Optionally, the terminal obtains the synchronization information of the second carrier according to the synchronization information of the first carrier. For example, the terminal obtains the time-frequency information of the second carrier according to the synchronization reference of the first carrier.

In the carrier determination method provided by the embodiment of the present application, the terminal determines the first carrier, and the first carrier is used to determine the synchronization information of the first carrier and/or the synchronization information of the second carrier. Through this method, the terminal can determine the first carrier and determine the synchronization information of itself and other carriers through the first carrier. Since the synchronization information corresponding to the first carrier and the second carrier is determined based on the first carrier, therefore It can realize timing synchronization of each carrier during data transmission, thereby improving the reliability of the communication system.

Optionally, in this embodiment of the present application, the above step 201 may include at least one of the following steps A1 to A4:

Step A1: The terminal determines the first carrier based on preconfiguration or network side device configuration or network side device indication.

Step A2: The terminal determines the first carrier based on the selection priority.

Step A3: The terminal determines the first carrier in the first carrier set.

Step A4: The terminal determines the first carrier based on the first information.

Optionally, the above network side equipment may be a core network equipment or an access network equipment (such as a base station). Exemplarily, the first carrier may be indicated or pre-configured through network configuration or network. For example, a carrier belonging to a certain frequency point and/or a certain frequency point range may be the first carrier through network configuration or network indication or preconfiguration.

Optionally, the above selection priority is determined based on at least one of the following:

Select priority relationships;

Select priority order;

Wherein, the above selection priority relationship includes: a mapping relationship between at least one selection priority and at least one carrier.

It should be noted that the above selection priority may be a selection priority group. That is, the above selection priorities may include multiple selection priorities, and the above selection priorities may include multiple carriers.

Optionally, the above first carrier set is determined based on at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Terminal selected.

Wherein, the second carrier set includes carriers that can be used as synchronization carriers, and the third carrier set includes an available synchronization carrier set.

For example, the carriers in the first carrier set may be all or part of the carriers of any of the above items, or all or part of the carriers of any of the above items, or the same carrier among the carriers of any of the above items, or It is a part of the same carrier among any of the above-mentioned carriers.

It can be understood that each of the above items used to determine the first carrier set can be regarded as a carrier set, and the first carrier set can be any one of the above multiple carrier sets, or any multiple of them. A wave set, or a subset of any one carrier set, or a subset of any multiple carrier sets, or the intersection of any multiple carrier sets, or a subset of the intersection of any multiple carrier sets.

For example, the multiple carriers in the first carrier set may include: all carriers in Set A;

For another example, the multiple carriers in the first carrier set may include: some carriers in Set A and some carriers in Set B;

For another example, the multiple carriers in the first carrier set may include: some of the carriers used for CA transmission included in SetA;

For another example, the multiple carriers in the first carrier set may include: some of the carriers configured with synchronization resources among all carriers that may be used for CA transmission;

For another example, the multiple carriers in the first carrier set may include: among all carriers that may be used for SL transmission, synchronization resources are configured and carriers that have been selected for SL transmission.

Optionally, in this embodiment of the present application, the above-mentioned first information includes at least one of the following:

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Synchronized reference order;

Synchronization reference priority indication information;

first instruction information;

How to configure synchronization parameters;

coverage status;

The number of elements of the first carrier set;

Carrier frequency point;

carrier index;

Uu/DL carrier;

Synchronize resources.

For example, the synchronization reference priority type may be base station-based or GNSS-based. For example, the above synchronization reference priority type may indicate which type of synchronization reference is preferentially determined as the synchronization reference.

Exemplarily, the above synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.

Illustratively, the above-mentioned second priority includes at least one of the following:

The priority or priority group of the synchronization reference;

Business priorities;

Synchronize the priority of resources.

For example, the priority of the above synchronization resources can be 1-8 or 0-7.

Exemplarily, the above synchronization reference sequence may include at least one of the following:

Synchronization refers to the priority order corresponding to the priority, reference signal reception strength RSRP strength order, and the order of the time points searched.

It should be noted that the priority order of the priorities corresponding to the synchronization references mentioned above can be understood as the priority order of the priorities corresponding to the synchronization references, that is, the priority order of the synchronization references.

Exemplarily, the above synchronization reference sequence includes at least one of the following:

The priority order of the priorities corresponding to the above synchronization references;

Reference signal received power RSRP strength sequence;

The sequence of time points searched by the terminal.

For example, the above synchronization reference priority indication information may be sl-NbAsSync.

Illustratively, the above-mentioned first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Whether to synchronize directly or indirectly to at least one specific synchronization reference.

For example, the configuration method of synchronization parameters may include: network configuration or pre-configuration.

For example, the above coverage status is used to indicate that the terminal is within the carrier coverage or outside the carrier coverage.

For example, the number of elements in the first carrier set may be multiple or zero, that is, the first carrier set is an empty set.

It should be noted that the explanation of the above synchronization resources can be found above and will not be repeated here.

Exemplarily, in the case where the terminal determines the first carrier based on different conditions, for example, the terminal determines the first carrier based on the following At least one of the conditions determines the first carrier case,

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Synchronized reference order;

Synchronization reference priority indication information;

first instruction information;

How to configure synchronization parameters;

coverage status;

The number of elements of the first carrier set;

Carrier frequency point;

carrier index;

Uu/DL carrier;

sync resources,

The terminal may determine the first carrier from the first carrier set based on different conditions, and/or the terminal may determine the first carrier based on the selection priority based on the different conditions. For example, when the above condition is the synchronization reference priority type, the terminal may determine the first carrier from the above first carrier set when the synchronization reference priority type is the base station.

It should be noted that for the terminal to determine the first carrier according to the selection priority, please refer to the following steps B1 to step B5.

Further optionally, in this embodiment of the present application, the above step A2 may include at least one of the following steps B1 to B5:

Step B1: The terminal determines to select the carrier with the highest priority as the first carrier.

Step B2: The terminal determines that the carrier with a higher selection priority than the second selection priority is the first carrier.

Step B3: The terminal determines to select the carrier with the lowest priority as the first carrier.

Step B4: The terminal determines that the carrier with a selection priority lower than the third selection priority is the first carrier.

Step B5: The terminal determines that the carrier with the fourth selection priority is the first carrier.

Illustratively, the above-mentioned second selection priority, third selection priority, and fourth selection priority are specific priorities or priority thresholds. In the case of priority thresholds, for ease of understanding, the second selection priority can be It is recorded as the first threshold, the third selection priority can be recorded as the second threshold, and the above-mentioned fourth selection priority can be recorded as the specific priority.

The following uses several examples to illustrate how the terminal determines the first carrier based on selection priority:

Example 1: According to the selection priority order, the terminal will select the carrier with the highest priority to determine the first carrier.

Example 2: The terminal determines to select the carrier with the highest priority or higher than the first threshold as the first carrier.

Example 3: The terminal determines to select the carrier with the lowest priority or lower than the second threshold as the first carrier.

Example 4: The terminal determines that the carrier whose selection priority is a specific selection priority is the first carrier.

Illustratively, the above-mentioned second selection priority (or first threshold), third selection priority (or second threshold), and fourth selection priority (or specific selection priority) may be determined based on at least one of the following:

Protocol agreement, or pre-configuration, or network configuration, or UE selection;

Synchronization reference priority indication information and/or first indication information for at least some of the multiple carriers;

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Carrier frequency point;

carrier index;

Synchronize resources.

Optionally, in this embodiment of the present application, the above selection priority is determined based on at least one of the following:

stipulated in the agreement;

network configuration;

preconfigured;

Network directed;

Synchronization reference priority indication information;

first instruction information;

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Carrier frequency point;

carrier index;

Synchronize resources;

Synchronization parameter configuration method;

Wherein, the above-mentioned synchronization parameter configuration method includes at least one of the following: network configuration and pre-configuration.

Optionally, the above-mentioned first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Optionally, the above synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.

Further optionally, the synchronization reference priority indication information may be the synchronization reference priority indication information of at least part of the multiple carriers; the above-mentioned first indication information may be the first indication information of at least part of the multiple carriers. ; The above-mentioned synchronization reference priority type may be a synchronization reference priority type of at least part of the multiple carriers; the above-mentioned synchronization reference type may be a synchronization reference type of at least part of the multiple carriers; the above-mentioned second priority may be The second priority of at least part of the plurality of carriers; the above-mentioned carrier frequency point may be the carrier frequency point of at least part of the plurality of carriers; the above-mentioned carrier index may be the carrier index of at least part of the plurality of carriers; The above-mentioned synchronization resources may be synchronization resources of at least part of the multiple carriers; and the above-mentioned synchronization parameter configuration method may be a synchronization parameter configuration method of at least part of the multiple carriers.

Optionally, the above multiple carriers include at least one of the following:

Multiple carriers for CA transmission;

Multiple carriers for SL transmission;

The first carrier set;

second carrier set;

Third carrier set.

Exemplarily, the plurality of carriers include at least one of the following: multiple carriers of an aggregated carrier, multiple carriers, at least two carriers, Set A, Set B, and at least some carriers in the first carrier set.

It can be understood that the carriers included in the selection priority may be determined based on at least one of the above items.

Illustratively, the following two examples are used to explain the selection priority based on the synchronization reference type:

Example 5: Determine the carriers included in the selection priority based on the synchronization reference type, or determine the mapping relationship between at least one selection priority and at least one carrier based on the synchronization reference type, which may include at least one of the following:

Determine the carrier whose synchronization reference is gNB/eNB as the carrier under the selection priority;

Determine the carrier whose synchronization reference is the UE that is directly synchronized to the gNB/eNB as the carrier under the selection priority;

Determine the carrier whose synchronization reference is the UE indirectly synchronized to gNB/eNB as the carrier under the selection priority;

Determine the carrier whose synchronization reference is GNSS as the carrier under the selection priority;

Determine the carrier whose synchronization reference is the UE that is directly synchronized to GNSS as the carrier under the selection priority;

Determine the carrier whose synchronization reference is the UE indirectly synchronized to GNSS as the carrier under the selection priority;

The carrier whose synchronization reference is the remaining UE is determined as the carrier under the selection priority.

Example 6: Determine the carriers included in the selection priority based on the synchronization reference type, or determine the mapping relationship between at least one selection priority and at least one carrier based on the synchronization reference type, which may include at least one of the following:

The carrier whose synchronization reference is SyncRef UE (synchronization reference UE), and the SLSS ID of SyncRef UE belongs to the SLSS ID set/partial set defined within the coverage range, and the coverage indication parameter indicates true, is determined as the carrier under the selection priority ;

The carrier whose synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE belongs to the SLSS ID set/partial set defined within the coverage range, and the coverage indication parameter indicates false, is determined as the carrier under the selection priority;

The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the coverage indication reference indication is true/The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the SLSS is transmitted on the third set of synchronization resources Carrier, determined as the carrier under the selection priority;

The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and the SLSS is not in the third set Carriers that are transmitted on synchronization resources and whose coverage indication parameter indicates false are determined to be carriers under the selection priority;

Determine the carrier whose synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 337, and the coverage indication parameter indicates false, as the carrier under the selection priority;

The carrier whose synchronization reference is other SyncRef UE is determined as the carrier under the selection priority.

For example, in the case where the selection priority is determined based on the second priority, the carrier whose priority of the synchronization reference is a certain value(s) is determined as the carrier under the selection priority; and/or, the priority of the service is determined Carriers with a certain value(s) are determined to be carriers under the selection priority; and/or carriers whose synchronization resource priority is a certain value(s) are determined to be carriers under the selection priority.

For example, when the selection priority is determined based on the carrier frequency, the carrier whose carrier frequency is a certain value(s) is determined as the carrier under the selection priority.

For example, when the selection priority is determined based on the carrier index, the carrier whose carrier index is a certain value(s) is determined as the carrier under the selection priority.

For example, when the selection priority is determined based on synchronization resources, carriers whose synchronization resources are a certain value(s) are determined as carriers under the selection priority. For example, the period of the synchronization signal is a carrier with a certain value, the number of synchronization slots in the period is a carrier with a certain value, and/or the number of S-SSB repetitions is a certain value. ) value of the carrier, and/or, the synchronization slot offset is a certain (some) value of the carrier, and/or, the S-SSB time interval is a certain (some) value of the carrier, and/or, S-SSB The SCS is a carrier with a certain value, which is determined as the carrier under the selection priority.

Optionally, in this embodiment of the present application, the above-mentioned at least one carrier is determined based on at least one of the following:

Synchronization reference type;

Synchronization reference priority;

Carrier frequency point;

carrier index;

Synchronize resources;

agreement;

Network configuration information;

Preconfiguration information;

Network instructions;

second information;

Second priority;

Optionally, the above-mentioned second information includes at least one of the following:

Synchronization reference type bypass synchronization signal SLSS identification ID information;

Transmission resource information of the bypass synchronization signal SLSS of the synchronization reference type;

Coverage instructions.

It should be noted that the above-mentioned at least one carrier is at least one carrier included in the selection priority, or at least one carrier corresponding to the selection priority, or at least one carrier under the above-mentioned selection priority.

For example, in the case where the selection priority includes a carrier whose synchronization reference is a certain synchronization reference type, the above-mentioned at least one carrier includes at least one of the following:

The synchronization reference is the carrier of gNB/eNB;

The synchronization reference is the carrier of the UE that is directly synchronized to the gNB/eNB;

The synchronization reference is the carrier of the UE that is indirectly synchronized to the gNB/eNB;

The synchronization reference is the carrier of GNSS;

The synchronization reference is the carrier of the UE that is synchronized directly to the GNSS;

The synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS;

The synchronization reference is the carrier of the remaining UEs.

For example, in the case where at least one carrier is determined based on the synchronization reference type, the at least one carrier may include at least one of the following:

The synchronization reference is a first synchronization reference type, and the bypass synchronization signal SLSS identification ID of the first synchronization reference type belongs to the first SLSS ID set, and the coverage indication parameter indicates the carrier of the third information;

The synchronization reference is a first synchronization reference type, and the SLSS ID of the first synchronization reference type belongs to the first SLSS ID set, and the coverage indication parameter indicates the carrier of the fourth information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the Cover indicating a carrier indicating reference to the third information;

The synchronization reference is a first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the SLSS of the synchronization reference is a carrier transmitted on the first synchronization resource;

The synchronization reference is a first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the SLSS of the synchronization reference is not transmitted on the first synchronization resource, and the coverage indication parameter indicates the carrier of the fourth information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the second ID, and the coverage indication parameter indicates the carrier of the fourth information.

Illustratively, the above-mentioned first synchronization reference type includes any one of the following: UE, gNB, eNB, GNSS, and UE internal clock. Exemplarily, the above-mentioned first SLSS ID set includes: at least part of the SLSS ID set defined within the coverage range of the carrier. For example, the above-mentioned first synchronization resources include: the third set of synchronization resources specified in the protocol. For example, the above-mentioned third information and fourth information may be status indication information, such as indicating true (or true) and indicating false (or false).

For example, taking the synchronization reference type as an example, the above-mentioned at least one carrier may include at least one of the following:

The synchronization reference is the carrier of gNB/eNB;

The synchronization reference is the carrier of GNSS;

The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE belongs to the SLSS ID set/partial set defined in the coverage range, and the coverage indication parameter indicates a carrier that is true;

The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE belongs to the SLSS ID set/partial set defined in the coverage range, and the coverage indication parameter indicates a carrier that is false;

The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the coverage indication reference indication is true/The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the carrier where SLSS is transmitted on the third set of synchronization resources ;

The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is not transmitted on the third set of synchronization resources, and the coverage indication parameter indicates a carrier with false;

The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 337, and the coverage indication parameter indicates a carrier that is false.

For example, in the case where at least one carrier is determined based on the second priority, the at least one carrier may be a carrier whose priority is a certain value(s), for example, a carrier whose priority of the synchronization reference is a certain value(s) , the priority of the service is the carrier of certain value(s), and the priority of the synchronization resource is the carrier of certain value(s).

For example, when at least one carrier is determined based on a carrier frequency point, the at least one carrier may be a carrier whose carrier frequency point is a certain value(s).

For example, when at least one carrier is determined based on a carrier index, the at least one carrier may be a carrier whose carrier index is a certain value(s).

For example, when at least one carrier is determined based on synchronization resources, the at least one carrier may be a carrier whose synchronization resources have a certain value(s). For example, the period of the synchronization signal is a carrier of a certain (some) value, the number of synchronization slots in the cycle is a carrier of a certain (some) value, the number of repetitions of S-SSB is a carrier of a certain (some) value, and the number of synchronization slots is a carrier of a certain (some) value. The offset is a carrier of certain (some) values, the time interval of S-SSB is a carrier of certain (some) values, and the SCS of S-SSB is a carrier of certain (some) values.

Optionally, in this embodiment of the present application, the above selection priority order is determined based on at least one of the following:

Determined based on the synchronization reference priority order corresponding to the carrier;

In the case where the synchronization reference priority order corresponding to the carrier includes an overlapping part, the priority order of the synchronization reference priority based on the overlapping part is determined;

In the case where the synchronization reference priority order corresponding to the carrier includes an overlapping part, it is determined based on the priority order of the synchronization reference priority except the overlapping part;

Determined based on the arrangement order of carriers;

Determined based on the synchronization reference information of the carrier;

Determined based on the carrier synchronization parameter configuration method;

Determined based on carrier frequency;

Carrier-based second priority determination;

Determined based on carrier index;

Determined based on synchronized resources.

Optionally, the above-mentioned carrier may be multiple carriers.

Optionally, the above synchronization reference information includes at least one of the following: synchronization reference priority, synchronization reference type, SLSS ID information, covering the indication parameter information.

For example, the above-mentioned synchronization reference priority order may be the priority order or priority order of synchronization reference priorities.

Illustratively, determining the synchronization reference priority order is illustrated by the following example:

Example 7:

When sl-NbAsSync of carrier 1 is true, the synchronization reference priority order of the synchronization reference of carrier 1 (synchronization reference priority a1 to synchronization reference priority a6) is determined as follows:

Synchronization reference priority a1: UE synchronized directly to GNSS

Synchronization reference priority a2: UE indirectly synchronized to GNSS

Synchronous synchronization reference priority level aa34:: g direct B/e synchronization B to gNB/eNB UE

Synchronization reference priority a5: UE indirectly synchronized to gNB/eNB

Synchronization reference priority a6: remaining UEs

Example 8:

The sl-NbAsSync of carrier 2 is false, and the sl-NbAsSync of carrier 2 is false. The synchronization reference priority order of the synchronization reference of carrier 2 (synchronization reference priority b1 to synchronization reference priority b7) is determined as follows:

Synchronization reference priority b1: UE synchronized directly to GNSS

Synchronization reference priority b2: UE indirectly synchronized to GNSS

Synchronization reference priority b3: remaining UEs

It should be noted that the synchronization reference priorities of carrier 1 from high to low are: synchronization reference priority a1, synchronization reference priority a2, synchronization reference priority a3, synchronization reference priority a4, synchronization reference priority a5, synchronization reference priority Reference priority a6; the synchronization reference priority of carrier 2 from high to low is: synchronization reference priority b1, synchronization reference priority b2, synchronization reference priority b3.

It should be noted that "a1" to "a6" in the above-mentioned synchronization reference priorities a1 to a6 are used to distinguish different synchronization reference priorities. The above-mentioned synchronization reference priorities a1 to a6 are used to distinguish different synchronization reference priorities. The numbers "1" to "6" can be used to represent the priority of the synchronization reference, that is, the smaller the number, the higher the priority of the synchronization reference selection.

Illustratively, in the case where the selection priority order is determined based on the priority order of synchronization reference priorities of overlapping parts, the selection priority order is explained by the following example:

Example 9, combined with the above Example 7 and the above Example 8, the overlapping parts of the synchronization reference priorities of carrier 1 and carrier 2 include: UEs directly synchronized to GNSS, UEs indirectly synchronized to GNSS, and the remaining UEs have three synchronization reference priorities. level, the selection priority sequence can include sequence 1 (selection priority c1 to selection priority c3) or sequence 2 (selection priority d1 to selection priority d3):

Order 1:

Select priority c1: the synchronization reference is the carrier of the UE synchronized directly to the GNSS

Select priority c2: the synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

Select priority c3: the synchronization reference is the carrier of the remaining UEs

Order 2:

Select priority d1: the synchronization reference is the carrier of the UE synchronized directly to the GNSS

Select priority d2: the synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

Select priority d3: the synchronization reference is the carrier of the remaining UEs

It should be noted that the priorities of any of the items selected as priorities above can be the same.

It should be noted that in sequence 1, the above-mentioned selection priorities from high to low are selection priority c1, selection priority c2, and selection priority c3; in sequence 2, the above-mentioned selection priorities from high to low are: Select priority d1, select priority d2, select priority d3.

It should be noted that “c1” to “c3” in the above-mentioned selection priorities c1 to c3 are used to distinguish different selection priorities. The numbers “1” to “1” in the above-mentioned selection priorities c1 to c3 are used to distinguish different selection priorities. 3” can be used to represent the level of selection priority, that is, the smaller the number, the higher the selection priority. The same applies to selection priority d1 to selection priority d3.

It should be noted that the selection priority order corresponding to the above-mentioned selection priority order 1 and order 2 is an example of the possible selection priority order provided by this application, and does not constitute a limitation on the selection priority order. The above-mentioned selection priority order The order of levels can also be determined as other orders according to the actual situation. The embodiment of this application does not make any changes in this regard. limited.

Exemplarily, in the case where the selection priority order is determined based on the priority order of the synchronization reference priorities of the non-overlapping parts (ie, except the overlapping parts), the selection priority order is explained by the following example:

Example 10, combined with the above examples 7 and 8, the non-overlapping parts of the synchronization reference priorities of carrier 1 and carrier 2 include: gNB/eNB, UEs directly synchronized to gNB/eNB, indirect synchronization to gNB/eNB and the above three To synchronize reference priorities, the priority order can include the following order 3 and order 4:

Order 3:

Select priority e1: the synchronization reference is the carrier of gNB/eNB

Select priority e2: the synchronization reference is the carrier of the UE that is directly synchronized to the gNB/eNB

Select priority e3: the synchronization reference is the carrier of the UE that is indirectly synchronized to the gNB/eNB

Order 4:

Select priority f1: the synchronization reference is the carrier of the UE synchronized directly to the GNSS

Select priority f2: the synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

Select priority f3: the synchronization reference is the carrier of the remaining UEs

It should be noted that in sequence 3, the above-mentioned selection priorities from high to low are selection priority e1, selection priority e2, and selection priority e3; in sequence 4, the above-mentioned selection priorities from high to low are selection priority Level f1, select priority f2, select priority f3.

It should be noted that “f1” to “f3” in the above-mentioned selection priorities f1 to f3 are used to distinguish different selection priorities. The numbers “1” to “1” in the above-mentioned selection priorities f1 to f3 are used to distinguish different selection priorities. 3” can be used to represent the level of selection priority, that is, the smaller the number, the higher the selection priority. The same applies to selection priority e1 to selection priority e3.

It should be noted that the selection priority order corresponding to the above-mentioned selection priority order 3 and order 4 is an example of the possible selection priority order provided by this application, and does not constitute a limitation on the selection priority order. The above-mentioned selection priority order The order of levels can also be determined as other orders according to actual conditions, and the embodiment of the present application does not impose any limitation on this.

It should be noted that the synchronization reference priority order in the embodiment of the present application may be the synchronization reference priority order; the selection priority order may be the selection priority order. The above terms do not constitute a limitation on the present application.

For example, the above selection priority order may be obtained by sorting multiple selection priorities in any order/specific order. The following uses several examples to explain the order of selection priorities according to the ordering of multiple selection priorities:

Example 11: The above selection priority order can be:

Select priority g1: the synchronization reference is the carrier of the UE synchronized directly to gNB/eNB

Select priority g2: the synchronization reference is the carrier of the UE that is indirectly synchronized to gNB/eNB

Select priority g3: the synchronization reference is the GNSS carrier

Select priority g4: the synchronization reference is the carrier of the UE synchronized directly to the GNSS

Select priority g5: the synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

Select priority g6: the synchronization reference is the carrier of the remaining UEs

It should be noted that the above selection priorities from high to low are: select priority g1, select priority g2, select priority g3, select priority g4, select priority g5, select priority g6.

It should be noted that “g1” to “g3” in the above-mentioned selection priorities g1 to g6 are used to distinguish different selection priorities. The numbers “1” to “1” in the above-mentioned selection priorities g1 to g6 are used to distinguish different selection priorities. 6” can be used to represent the level of selection priority, that is, the smaller the number, the higher the selection priority.

It should be noted that the above-mentioned selection priority order is an example of the possible situations of selecting the priority order provided by this application, and does not constitute a limitation on the selection priority order. The above-mentioned selection priority order can also be determined as other orders according to the actual situation. , the embodiments of this application do not impose any limitation on this.

For example, when the synchronization reference priority type is a base station, the selection priority sequence is explained through the following example:

Example 12: If the synchronization reference priority type of the carrier is base station, the above selection priority order can be:

Select priority h1: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE belongs to the SLSS ID set/partial set defined in the coverage range, and the coverage indication parameter indicates a carrier that is true

Select priority h2: the synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE belongs to the SLSS ID set/partial set defined within the coverage range, and the coverage indication parameter indicates a carrier with false

Select priority h3: the synchronization reference is the GNSS carrier

Select priority h4: The synchronization reference is SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the coverage indication reference indication is true/The synchronization reference is SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the SLSS is synchronized in the third set The carrier transmitted on the resource

Select priority h5: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is not transmitted on the third set of synchronization resources, and the coverage indication parameter indicates a carrier with false

Select priority h6: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 337, and the coverage indication parameter indicates a carrier with false

Select priority h7: the synchronization reference is the carrier of other SyncRef UE

It should be noted that the priorities of any of the above selected priorities can be the same. For example, h5 and h6 have the same priority.

It should be noted that the above selection priorities from high to low are: select priority h1, select priority h2, select priority h3, select priority h4, select priority h5, select priority h6, select priority h7 .

It should be noted that “h1” to “h3” in the above-mentioned selection priorities h1 to h7 are used to distinguish different selection priorities. The numbers “1” to “1” in the above-mentioned selection priorities h1 to h7 are used to distinguish different selection priorities. 7” can be used to represent the level of selection priority, that is, the smaller the number, the higher the selection priority.

For example, when the synchronization reference priority type is GNSS, the selection priority order is explained through the following example:

Example 13: If the synchronization reference priority type of the carrier is GNSS, the above selection priority order can be:

Select priority i1: the synchronization reference is the carrier of the UE synchronized directly to the GNSS

Select priority i2: the synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

Select priority i3: the synchronization reference is the carrier of gNB/eNB

Select priority i4: the synchronization reference is the carrier of the UE synchronized directly to the gNB/eNB

Select priority i5: the synchronization reference is the carrier of the UE that is indirectly synchronized to the gNB/eNBS

Select priority i6: the synchronization reference is the carrier of the remaining UEs

It should be noted that the above selection priorities from high to low are: select priority i1, select priority i2, select priority i3, select priority i4, select priority i5, select priority i6.

It should be noted that the priority order of selecting the priority (group) as above can be used for synchronization reference priority type is GNSS, and the aggregated carrier/multi-carrier/at least two carriers/Set A/Set B/the first carrier set The situation when the synchronization reference priority indication information/first information of at least part of the carriers is specific information (for example, sl-NbAsSync is true).

Or the selection priority order can be:

Select priority j1: the synchronization reference is the carrier of the UE synchronized directly to the GNSS

Select priority j2: the synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

Select priority j3: the synchronization reference is the carrier of the remaining UEs

It should be noted that the above selection priorities from high to low are: select priority j1, select priority j2, select priority j3.

It should be noted that the priority order of selecting the priority (group) as above can be used for synchronization reference priority type is GNSS, and the aggregated carrier/multi-carrier/at least two carriers/Set A/Set B/the first carrier set Synchronization reference priority indication information/first information of at least part of the carriers (for example, sl-NbAsSync is false).

Or the selection priority order can be:

Select priority k1: the synchronization reference is SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the coverage indication reference indication is true/the synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and SLSS carriers transmitted on the third set of synchronization resources

Select priority k2: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is not transmitted on the third set of synchronization resources, and the coverage indication parameter indicates a carrier with false

Select priority k3: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 337, and the coverage indication parameter indicates a carrier with false

Select priority k4: the synchronization reference is the carrier of gNB/eNB

Select priority k5: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE belongs to the SLSS ID set/partial set defined in the coverage range, and the coverage indication parameter indicates a carrier that is true

Select priority k6: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE belongs to the SLSS ID set/partial set defined in the coverage range, and the coverage indication parameter indicates a carrier with false

Select priority k7: the synchronization reference is the carrier of other SyncRef UE

It should be noted that the priority order of selecting the priority (group) as above can be used for synchronization reference priority type is GNSS, and the aggregated carrier/multi-carrier/at least two carriers/Set A/Set B/the first carrier set Synchronization reference priority indication information/first information of at least part of the carrier (for example, sl-NbAsSync is true); the priority of any of the above selected priorities can be the same, for example, k2 and k3 can be the priority (priority order) Can be the same.

It should be noted that the above selection priorities from high to low are: select priority k1, select priority k2, select priority k3, select priority k4, select priority k5, select priority k6, select priority k7 .

Or the selection priority order can be:

Select priority level l1: The synchronization reference is SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the coverage indication reference indication is true/The synchronization reference is SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the SLSS is synchronized in the third set The carrier transmitted on the resource

Select priority level l2: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is not transmitted on the third set of synchronization resources, and the coverage indication parameter indicates a carrier with false

Select priority l3: the synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 337, and the coverage indication parameter indicates a carrier with false

Select priority l4: the synchronization reference is the carrier of other SyncRef UE

It should be noted that the priorities of any of the above selected priorities may be the same. For example, the priorities (priorities) of l2 and l3 may be the same.

It should be noted that the above selection priorities from high to low are: selection priority l1, selection priority l2, selection priority l3, selection priority l4.

It should be noted that the priority order of selecting the priority (group) as above can be used for synchronization reference priority type is GNSS, and the aggregated carrier/multi-carrier/at least two carriers/Set A/Set B/the first carrier set The synchronization reference priority indication information/first information of at least some carriers (for example, sl-NbAsSync is false), the selection priorities l2 and l3 can be the same priority (priority order).

It should be noted that “i1” to “i6” in the above-mentioned selection priorities i1 to i6 are used to distinguish different selection priorities, and the numbers “1” to “1” in the above-mentioned selection priorities i1 to i6 are used to distinguish different selection priorities. "6" can be used to represent the level of selection priority, that is, the smaller the number, the higher the selection priority. Select priority j1 to select priority j3, select priority k1 to select priority k7, and select priorities l1 to l4 in the same way.

Optionally, in this embodiment of the present application, the overlapping portion of the synchronization reference priority order is determined based on at least one of the following:

Synchronization reference priority indication information corresponding to the synchronization reference priority order;

first instruction information;

Protocol predefined;

Network Configuration;

network instructions;

preconfigured;

Wherein, the above-mentioned first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Exemplarily, in the case where the synchronization reference priority indication information and/or the first indication information of at least part of the multiple carriers are different, then the synchronization reference priority order corresponding to at least part of the multiple carriers is different.

It should be noted that for the synchronization reference priorities corresponding to different priority indication information, please refer to the above, and will not be described again here.

In the carrier determination method provided by the embodiment of the present application, a new synchronization carrier selection priority (ie, selection priority) is designed based on different synchronization parameters. In this way, the synchronization reference obtained based on this synchronization carrier is consistent with other aggregated carriers based on The synchronization reference that can be obtained by its configuration does not conflict.

Optionally, in this embodiment of the present application, the above selection priority order satisfies at least one of the following:

The selection priority corresponding to the carrier with the first synchronization reference priority is higher or lower than the selection priority corresponding to the carrier with the second synchronization reference priority; the above-mentioned first synchronization reference priority is higher than the above-mentioned second synchronization reference priority, And/or, the above-mentioned first synchronization reference priority is a predetermined synchronization reference priority;

The selection priority corresponding to the carrier of the first synchronization reference type is higher or lower than the selection priority corresponding to the carrier of the second synchronization reference type; the above-mentioned first synchronization reference type is a predetermined synchronization reference type;

The selection priority corresponding to the carrier at the first carrier frequency point is higher or lower than the selection priority corresponding to the carrier at the second carrier frequency point; the above-mentioned first carrier frequency point is greater than the above-mentioned second carrier frequency point, and/or, the above-mentioned The first carrier frequency point is the predetermined carrier frequency point;

The selection priority corresponding to the carrier of the first priority is higher or lower than the selection priority of the carrier of the second priority; the above-mentioned first priority is higher than the above-mentioned second priority, and/or, the above-mentioned first priority The level is the predetermined priority;

The selection priority corresponding to the carrier of the first carrier index is higher or lower than the selection priority corresponding to the carrier of the second carrier index; the above-mentioned first carrier index is higher than the above-mentioned second carrier index, and/or, the above-mentioned first carrier The index is the predetermined carrier index;

Wherein, the above-mentioned first synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock; the above-mentioned second synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and, UE internal clock.

Optionally, the above-mentioned UEs may include at least one of the following: UEs directly synchronized to GNSS, UEs indirectly synchronized to GNSS, UEs directly synchronized to gNB/eNB, UEs indirectly synchronized to gNB/eNB, and the remaining SyncRef UEs

Optionally, the above selection priority order may be determined based on the synchronization reference priority.

For example, the selection priority corresponding to a carrier with a high synchronization reference priority is higher or lower than the first priority corresponding to a carrier with a low synchronization reference priority.

For example, the synchronization reference priority order (synchronization reference priority 1 to synchronization reference priority 6) and the selection priority order are as follows:

Synchronization reference priority 1: UE synchronized directly to GNSS

Synchronization reference priority 2: UE indirectly synchronized to GNSS

Synchronization reference priority 3: gNB/eNB

Synchronization reference priority 4: UE synchronized directly to gNB/eNB

Synchronization reference priority 5: UE indirectly synchronized to gNB/eNB

Synchronization reference priority 6: remaining UEs

The corresponding selection priority order (selection priority g1 to selection priority g6) is:

Select priority g3: the synchronization reference is the GNSS carrier

For example, the synchronization reference priority is the selection priority corresponding to the carrier of a specific synchronization reference priority, and the synchronization reference priority higher/lower is the selection priority corresponding to the carriers of other synchronization reference priorities.

For example, the selection priority corresponding to a carrier whose synchronization reference is a certain synchronization reference type is higher/lower than the selection priority corresponding to a carrier whose synchronization reference is another synchronization reference type.

For example, the selection priority corresponding to the carrier whose synchronization reference type is gNB is higher than the selection priority corresponding to the carrier whose synchronization reference type is eNB.

Optionally, the above selection priority order may be determined based on the carrier frequency, or based on the carrier frequency and other information. Exemplarily, other information may be at least one of the following: carrier index, synchronization resource, synchronization parameter Test type, synchronization reference priority, second priority, etc.

For example, the selection priority corresponding to a carrier with a high carrier frequency is higher/lower than the selection priority corresponding to a carrier with a low carrier frequency.

For example, the selection priority corresponding to a carrier whose frequency point is a specific frequency point is higher/lower than the selection priority corresponding to a carrier frequency point corresponding to other frequency points.

Optionally, the above selection priority can be obtained based on the second priority or based on the joint determination of the second priority and other information. For example, other information may be at least one of the following: carrier index, synchronization resource, synchronization reference type, synchronization reference priority, and carrier frequency point.

For example, the selection priority corresponding to a carrier with a second high priority is higher/lower than the selection priority corresponding to a carrier with a low priority.

For example, the selection priority corresponding to the carrier whose second priority is a specific priority is higher/lower than the selection priority corresponding to the carrier whose priority is other priorities.

Optionally, the above selection priority can be obtained based on the carrier index or determined based on the carrier index and other information. For example, other information may be at least one of the following: carrier frequency, synchronization resource, synchronization reference type, synchronization reference priority, second priority, etc.

For example, the selection priority corresponding to a carrier with a larger carrier index is higher/lower than the selection priority corresponding to a carrier with a smaller carrier index.

For example, the selection priority corresponding to a carrier whose carrier index is a specific index is higher/lower than the selection priority corresponding to a carrier whose carrier index is other indexes.

The selection priority corresponding to the carrier of the first synchronization signal is higher or lower than the selection priority corresponding to the carrier of the second synchronization signal; the period of the first synchronization signal is greater than the period of the second synchronization signal, and/or, the The period of the first synchronization signal is the first predetermined period;

The selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the first value is higher or lower than the selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the second value; the first value is greater than the selection priority the second value, and/or the first value is a first predetermined value;

The selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the third value is higher or lower than the selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the fourth value; the third value is greater than the third value. four values, and/or the third value is a second predetermined value;

The selection priority corresponding to the carrier with the first synchronization time slot offset is higher or lower than the selection priority corresponding to the carrier with the second synchronization time slot offset; the first synchronization time slot offset is greater than the first synchronization time slot offset. The second synchronization time slot offset, and/or the first synchronization time slot offset is a predetermined synchronization time slot offset;

The time interval of the synchronization signal is the selection priority corresponding to the carrier in the first time interval, which is higher or lower than the selection priority corresponding to the carrier in the second time interval; the first time interval is greater than the second time interval, and /Or, the first time interval is a predetermined time interval.

The selection priority corresponding to the carriers of the first SCS interval is higher or lower than the selection priority corresponding to the carriers of the second SCS interval; the first SCS interval is greater than the second SCS interval, and/or the third SCS interval An SCS interval is a predetermined SCS interval.

Optionally, the above selection priority can be obtained based on synchronization resources or determined based on synchronization resources and other information. For example, other information may be at least one of the following: carrier frequency point, carrier index, synchronization reference type, synchronization reference priority, second priority, etc.

For example, the first priority corresponding to a carrier with a large synchronization signal period is higher/lower than the first priority corresponding to a carrier with a small synchronization signal period.

For example, the first priority corresponding to a carrier with a large number of synchronization time slots in a cycle is higher/lower than the first priority corresponding to a carrier with a small number of synchronization time slots in a cycle.

For example, the selection priority corresponding to a carrier with a large number of S-SSB repetitions is higher/lower than the selection priority corresponding to a carrier with a small number of S-SSB repetitions.

For example, the selection priority corresponding to a carrier with a large synchronization time slot offset is higher/lower than the selection priority corresponding to a carrier with a small synchronization time slot offset.

For example, the selection priority corresponding to a carrier with a large S-SSB time interval is higher/lower than the selection priority corresponding to a carrier with a small S-SSB time interval.

For example, the selection priority corresponding to a carrier with a large SCS is higher/lower than the selection priority corresponding to a carrier with a small SCS, where the SCS may be the SCS of the S-SSB and/or the SCS of the carrier.

For example, the carrier whose synchronization signal period is a specific value corresponds to a selection priority higher/lower than the synchronization signal period. period is the selection priority corresponding to carriers with other values.

For example, the selection priority corresponding to a carrier whose number of synchronization time slots in a cycle is a specific value is higher/lower than the selection priority corresponding to a carrier whose number of synchronization time slots in a cycle is other values.

For example, the selection priority corresponding to a carrier whose S-SSB repetition number is a specific value is higher/lower than the selection priority corresponding to a carrier whose S-SSB repetition number is other values.

For example, the selection priority corresponding to the carrier whose synchronization time slot offset is a specific value is higher/lower than the selection priority corresponding to the carrier whose synchronization time slot offset is other values.

For example, the time interval of S-SSB is the selection priority corresponding to a carrier with a specific value. The time interval is higher/lower than the selection priority of carriers with other values.

For example, the SCS is the selection priority corresponding to a carrier with a specific value. The SCS is the selection priority corresponding to a carrier with other values. The SCS may be the SCS of the S-SSB and/or the SCS of the carrier.

Optionally, in this embodiment of the present application, the above step A3 may include at least one of the following steps C1 to C7:

Step C1: Determine at least one carrier from the first carrier set as the first carrier.

Step C2: Determine at least one carrier that satisfies the first condition from the first carrier set as the first carrier.

Step C3: Use the carrier in the first carrier set with a selection priority higher than the fifth selection priority as the first carrier.

Step C4: Select the carrier with the highest priority from at least one of the first carrier sets as the first carrier.

Step C5: Use the carrier with a selection priority lower than the sixth selection priority in the first carrier set as the first carrier.

Step C6: Select the carrier with the lowest priority from the first carrier set as the first carrier;

Step C7: Use the carrier with the seventh selection priority in the first carrier set as the first carrier.

Optionally, when the synchronization reference priority is based on the base station and the synchronization parameter is network configuration, the terminal determines at least one carrier from the first carrier set as the first carrier. Exemplarily, the terminal randomly selects at least one carrier from the first carrier set as the first carrier.

Optionally, when the synchronization reference is based on the base station and the synchronization parameters are preconfigured, or the synchronization reference is based on gnss and gnss is unreliable, the terminal can prioritize each carrier in the first carrier set according to the selection level order and determine at least one carrier with the highest priority as the first carrier.

Optionally, the above-mentioned carriers that meet the first condition include at least one of the following:

GNSS reliable carrier;

The carrier frequency point belongs to a carrier within the first predetermined frequency range;

The carrier where the downlink synchronization signal DL SSB is used for synchronization;

The carrier where the serving cell is located;

Anchor carrier;

Wherein, the above-mentioned first predetermined frequency point range includes: low frequency or target frequency range; the carrier where the above-mentioned serving cell is located includes: the carrier where the primary cell Pcell is located.

For example, the above-mentioned GNSS reliable carrier may be a synchronization reference priority based on the base station, and the synchronization parameters are network configuration/preconfiguration, and there is a GNSS reliable carrier.

For example, the frequency range corresponding to the above target frequency range FRI is 10MHz-7125Mhz, that is, the terminal preferentially selects a low frequency or FR1 carrier as the synchronization carrier.

Optionally, the carrier determination method provided by the embodiment of this application also includes the following step 203:

Step 203: If the predetermined conditions are met, determine synchronization references for each carrier in the first carrier set.

The above predetermined conditions include at least one of the following:

The first carrier set is the empty set;

There is a synchronization reference determined by at least one carrier, which is inconsistent with the allowable synchronization reference obtained according to the synchronization reference priority indication information of the at least one carrier.

For example, the above-mentioned first carrier set may be obtained according to the synchronization reference priority indication information and/or the first information and/or the number of elements of the first carrier set.

Optionally, in this embodiment of the present application, the above step 201 may include at least one of the following steps D1 to D6:

Step D1: The terminal determines that the carrier whose carrier frequency meets the second condition is the first carrier.

Step D2: The terminal determines that the carrier whose carrier index meets the third condition is the first carrier.

Step D3: The terminal determines that the carrier whose second priority meets the fourth condition is the first carrier.

Step D4: The terminal determines the Uu/DL carrier that meets the fifth condition as the first carrier.

Step D5: The terminal determines that the carrier whose synchronization resources meet the sixth condition is the first carrier.

Step D6: The terminal determines that the carrier whose synchronization reference priority meets the seventh condition is the first carrier.

Optionally, the above-mentioned carriers that meet the second condition include at least one of the following:

The carrier with the largest carrier frequency;

The carrier with the smallest carrier frequency;

The carrier frequency point is the carrier wave of the second predetermined frequency point;

The carrier frequency is within the second predetermined frequency range.

For example, the terminal determines the carrier with the largest carrier frequency point as the first carrier.

For example, the terminal determines the carrier with the smallest carrier frequency point as the first carrier.

For example, the terminal determines that the carrier frequency point is a specific frequency point and/or the carrier within a specific range is the first carrier.

Optionally, the above-mentioned carriers that meet the third condition include at least one of the following:

The carrier with the largest carrier index;

The carrier with the smallest carrier index;

The carrier index is the carrier of the first predetermined index;

The carrier index is a carrier within a first predetermined index range.

For example, the terminal determines the carrier with the largest carrier index as the first carrier.

For example, the terminal determines the carrier with the smallest carrier index as the first carrier.

For example, the terminal determines that the carrier whose carrier index is a specific value is the first carrier.

Optionally, the above-mentioned carriers that meet the fourth condition include at least one of the following:

The carrier with the second highest priority;

The carrier with the second smallest priority;

The second priority is a carrier with a predetermined priority.

For example, the terminal determines that the carrier with the highest second priority is the first carrier.

For example, the terminal determines the carrier with the smallest second priority as the first carrier.

For example, the terminal determines that the carrier whose second priority is a specific value is the first carrier.

It should be noted that the explanation of the second priority can be found above and will not be repeated here.

Optionally, the above-mentioned carriers that meet the fifth condition include at least one of the following:

The carrier on which the downlink synchronization signal is used for synchronization;

The carrier where the serving cell is located;

Anchor carrier.

For example, the serving cell may be the primary cell Pcell.

Optionally, the above-mentioned carriers that meet the sixth condition include at least one of the following:

The carrier with the largest period of the synchronization signal;

The carrier with the smallest period of the synchronization signal;

The period of the synchronization signal is the carrier wave of the second predetermined period,

The carrier with the largest number of synchronization time slots in the cycle;

The carrier with the smallest number of synchronization time slots in the cycle;

The number of synchronization time slots in the cycle is the first predetermined number of carriers;

The carrier with the largest number of S-SSB repeats;

The carrier with the smallest number of repeats of S-SSB;

The number of repetitions of S-SSB is the first predetermined number of repetitions of carriers;

The carrier with the largest synchronization slot offset;

The carrier with the smallest synchronization slot offset;

The synchronization time slot offset is the carrier of the first predetermined time slot offset;

The carrier with the largest S-SSB time interval;

The time interval of S-SSB is the carrier of the first predetermined time interval;

The largest carrier of SCS;

The smallest carrier of SCS;

The SCS is the carrier of the second predetermined SCS.

For example, the terminal determines the carrier with the largest period of the synchronization signal as the first carrier.

For example, the terminal determines the carrier with the smallest period of the synchronization signal as the first carrier.

For example, the terminal determines the carrier whose period of the synchronization signal is a specific value as the first carrier.

For example, the terminal determines that the carrier with the largest number of synchronization time slots in the cycle is the first carrier.

For example, the terminal determines the carrier with the smallest number of synchronization time slots in the cycle as the first carrier.

For example, the terminal determines that the carrier whose number of synchronization time slots in the cycle is a specific value is the first carrier.

For example, the terminal determines the carrier with the largest number of S-SSB repetitions as the first carrier.

For example, the terminal determines the carrier with the smallest number of S-SSB repetitions as the first carrier.

For example, the terminal determines that the carrier whose S-SSB repetition number is a specific value is the first carrier.

For example, the terminal determines that the carrier with the largest synchronization time slot offset is the first carrier.

The UE determines that the carrier with the smallest synchronization slot offset is the first carrier.

The UE determines that the carrier whose synchronization slot offset is a specific value is the first carrier.

The UE determines that the carrier with the largest S-SSB time interval is the first carrier.

The UE determines that the carrier whose S-SSB time interval is a specific value is the first carrier.

The UE determines the carrier with the largest SCS as the first carrier, where the SCS may be the SCS of the S-SSB or the SCS of the carrier.

The UE determines the carrier with the smallest SCS as the first carrier.

The UE determines that the carrier whose SCS is a specific value is the first carrier.

Optionally, the above-mentioned carriers that meet the seventh condition include at least one of the following:

Synchronization refers to the carrier with the highest priority;

Synchronization refers to the carrier with the lowest priority;

The synchronization reference is a carrier of the third synchronization reference type;

Wherein, the above-mentioned third synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.

For example, the terminal determines that the carrier with the highest synchronization reference priority is the first carrier.

For example, the terminal determines that the carrier with the lowest synchronization reference priority is the first carrier.

Exemplarily, the terminal determines that the synchronization reference is a specific type of carrier as the first carrier.

The carrier determination method provided by this application is explained below through several embodiments:

In the following embodiments, the selection priorities can be represented by P1 to P6. The smaller the numbers in P0 to P6, the higher the priority, and the same number, the same priority. It should be noted that the following selection priority order is an example of possible situations provided by this application and does not constitute a limitation on the selection priority order.

Example 1:

The UE selects a carrier as the synchronization carrier in the first carrier set. The first carrier set can be any one of the following a), b), c), d), e), f), g), or any one A subset of , or the intersection of any N items therein, or a subset of the intersection of any N items therein, where N is an integer greater than 1.

a)Set A(carriers that can potentially be used as the synchronization carriers)

b)Set B(the available set of synchronization carriers)

c) All carriers that may be used for CA transmission

d) Carrier actually used for CA transmission

e) The carrier that has been selected for CA transmission

f) All possible carriers used for SL transmission

g) Carrier actually used for SL transmission

h) Carriers that have been selected for SL transmission

i) A carrier containing (e.g. configured or pre-configured) synchronization resources

For example, if the UE selects carriers actually used for CA transmission, and at least one carrier is included in Set A, then the first set of carriers may be a subset of the intersection/intersection of the carriers transmitted by CA and Set A, that is, included in Set A. All carriers actually used for CA transmission (corresponding to the intersection)/at least one carrier actually used for CA transmission included in Set A (corresponding to the subset of the intersection).

Alternatively, the network configures/pre-configures the carriers with synchronization reference, then the first set of carriers may be the carriers with which the network configures/pre-configures the synchronization reference, and the UE selects a carrier from the carriers with which the network configures/pre-configures the synchronization reference as the synchronization Carrier (corresponding to one item);

Alternatively, the network configures/pre-configures all carriers that may be used for CA transmission, and the first carrier set may be all the carriers that may be used for CA transmission (corresponding to a subset of one item) of at least one network configuration/pre-configuration.

Example 2:

Optionally, when the synchronization reference type parameter is a base station, the synchronization carrier selection process is as follows:

For example, if the carrier selected by the UE for CA transmission/SL transmission meets at least one of the following conditions:

The carrier is in the set of carriers configured in the network that can be used for CA transmission/SL transmission;

At least one carrier is included in Set A;

The network configuration synchronization reference type parameter (sl-SyncPriority) is the base station;

Then select one carrier from one or more carriers included in Set A as the synchronization carrier.

For example, if the carrier selected by the UE as CA transmission satisfies at least one of the following conditions:

The carrier is in the preconfigured set of carriers that can be used for CA transmission/SL transmission;

At least one carrier is included in Set A;

Pre-configure the synchronization reference type parameter (sl-SyncPriority) for the base station.

Then determine the synchronization reference of one or more carriers included in Set A, and select a carrier with the highest priority as the synchronization carrier according to the following selection priority (P1 to P6) order.

P1: The synchronization reference is directly synchronized to the carrier of gNB/eNB

P2: The synchronization reference is directly synchronized to the carrier of gNB/eNB

P3: The synchronization reference is the GNSS carrier

P4: The synchronization reference is the carrier of the UE synchronized directly to the GNSS

P5: The synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

P6: The synchronization reference is the carrier of the remaining UEs

It can be understood that the above selection priority order from high to low is: P1, P2, P3, P4, P5, P6.

It should be noted that if there are multiple carriers that meet the conditions, the UE can independently select one of the carriers as the synchronization carrier.

Optionally, when the synchronization reference type parameter is GNSS, the synchronization carrier selection process is as follows:

The carrier is in the network configured/preconfigured set of carriers that can be used for CA transmission/SL transmission;

At least one carrier is included in Set A;

The network configuration/preconfiguration synchronization reference type parameter (sl-SyncPriority) is gnss, and gnss is reliable;

Then select a gnss reliable carrier from the carriers included in SetA as the synchronization carrier

The carrier is in the network configured/preconfigured set of carriers that can be used for CA transmission/SL transmission.

At least one carrier is included in Set A

The network configuration/preconfiguration synchronization reference type parameter (sl-SyncPriority) is gnss, and gnss is unreliable

Then determine the synchronization reference of one or more carriers included in Set A, and select one of the carriers with the highest priority as the synchronization carrier according to the following selection priority order (P1 to P6):

P1: The synchronization reference is the carrier of the UE synchronized directly to the GNSS

P2: The synchronization reference is the carrier of the UE that is indirectly synchronized to the GNSS

P3: The synchronization reference is the carrier of gNB/eNB

P4: The synchronization reference is the carrier of the UE that is directly synchronized to the gNB/eNB

P5: The synchronization reference is the carrier of the UE that is indirectly synchronized to the gNB/eNB.

P6: The synchronization reference is the carrier of the remaining UEs

It should be noted that if there are multiple carriers that meet the conditions, the UE may select one of the carriers as the synchronization carrier.

None of the carriers are included in Set A;

That is, if the first carrier set is an empty set, the UE will determine the synchronization reference for each carrier selected for CA transmission.

Embodiment three:

If the preconfiguration/network configuration/UE selected CA carrier/SL transmission carrier/multi-carrier/at least one carrier/Set A/Set B/synchronization reference priority order (sl-NbAsSync) of the synchronization carrier is different, the synchronization carrier selection process is You can follow Embodiment 2, or you can do the following:

Optionally, for the case where the synchronization reference type parameter is a base station, the synchronization carrier selection process is the same as the second embodiment above.

Optionally, for the case where the synchronization reference type parameter is GNSS:

At least one carrier is included in Set A;

Preconfiguration/Network Configuration/UE selected CA carrier/SL transmission carrier/Multiple carriers/At least two carriers/Set A/Set B/Synchronization reference priority order of at least some carriers in the first carrier set (sl-NbAsSync) different;

Then select a gnss reliable carrier from the carriers included in SetA as the synchronization carrier.

At least one carrier is included in Set A;

The network configuration/preconfiguration synchronization reference type parameter (sl-SyncPriority) is gnss, and gnss is unreliable;

Then determine the synchronization reference of one or more carriers included in Set A, and select one of the carriers with the highest selection priority as the synchronization carrier according to the following selection priorities (P1 to P6):

P3: The synchronization reference is the carrier of gNB/eNB

P6: The synchronization reference is the carrier of the remaining UEs

The following example 1 illustrates the process of determining synchronization carriers based on synchronization reference priority:

Example 1:

At least one carrier is included in Set A;

Then determine the synchronization reference of one or more carriers included in Set A, and determine the selection priority of the carrier according to the following rules, and select a carrier with the highest selection priority as the synchronization carrier:

P3: The synchronization reference is the carrier of gNB/eNB

P6: The synchronization reference is the carrier of the remaining UEs

The rules are as follows:

If the selection priority corresponding to at least one carrier is P1 or P2, the UE selects the carrier with the higher priority among P1-P2 as the synchronization carrier.

If the priorities corresponding to all carriers are P6, the UE selects the corresponding carrier with the selection priority P6 as the synchronization carrier.

If the selection priority corresponding to all carriers configured with sl-NbAsSync false is P6, and the selection priority corresponding to at least one carrier configured with sl-NbAsSync true is P3, P4, P5, then the selection priority corresponding to the UE selection is P6 The carrier is used as a synchronization carrier.

For example, the above selection priority order can be obtained according to the synchronization reference priority. For example, a carrier with a high synchronization reference priority corresponds to a high selection priority. .

The following example illustrates the process of determining synchronization carriers based on synchronization reference priority order:

Example 2:

At least one carrier is included in Set A;

P3: The synchronization reference is the carrier of gNB/eNB

P6: The synchronization reference is the carrier of the remaining UEs

The rules are as follows:

For example, the conditions for determining the selection priority include: when the synchronization reference priority order has an overlapping part, and the carrier with a higher synchronization reference priority in the overlapping part corresponds to a higher selection priority, if the priority corresponding to at least one carrier is P1 , P2, P6, then the UE selects the carrier with the highest priority among P1, P2, and P6 as the synchronization carrier.

For example, the conditions for determining the selection priority include: the synchronization reference priority sequence has an overlapping part, and the non-overlapping part indicates that the carrier with a higher synchronization reference priority has a higher selection priority. If there is no carrier, the selection priority is P1, P2, P6, that is, the corresponding selection priorities of all carriers are P3, P4, and P5, then the UE selects the carrier with the highest priority among P3, P4, and P5 as the synchronization carrier.

Example 3:

If the carrier selected by the UE as CA transmission meets at least one of the following conditions:

At least one carrier is included in Set A;

Then the synchronization reference of one or more carriers included in Set A is determined, and the UE selects the carrier with a high synchronization reference priority as the synchronization carrier. If there is a synchronization reference determined by a carrier that is inconsistent with the allowable synchronization reference obtained according to the synchronization reference priority sequence configured by the carrier, each carrier determines the synchronization reference separately.

It should be noted that if there are multiple carriers that meet the selection priority, the UE will autonomously select one of the carriers as the synchronization carrier.

Embodiment 4:

At least one carrier is included in Set A;

P1: The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE belongs to the SLSS ID set/partial set defined within the coverage range, and the coverage indication parameter indicates a carrier that is true

P2: The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE belongs to the SLSS ID set/partial set defined within the coverage range, and the coverage indication parameter indicates a carrier with false

P3: The synchronization reference is the GNSS carrier

P4: The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and the coverage indication reference indication is true/The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is transmitted on the third set of synchronization resources carrier

P5: The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is not transmitted on the third set of synchronization resources, and the coverage indication parameter indicates a carrier with false

P5: The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 337, and the coverage indication parameter indicates a carrier with false

P6: The synchronization reference is the carrier of other SyncRef UE

At least one carrier is included in Set A;

At least one carrier is included in Set A

P3: The synchronization reference is the GNSS carrier

P6: The synchronization reference is the carrier of other SyncRef UE

None of the carriers are included in Set A;

Embodiment five:

At least one carrier is included in Set A;

P3: The synchronization reference is the GNSS carrier

P6: The synchronization reference is the carrier of other SyncRef UE

Example 1:

At least one carrier is included in Set A;

P3: The synchronization reference is the GNSS carrier

P6: The synchronization reference is the carrier of other SyncRef UE

The rules are as follows:

Example 2:

At least one carrier is included in Set A;

P3: The synchronization reference is the GNSS carrier

P6: The synchronization reference is the carrier of other SyncRef UE

The rules are as follows:

Example 3:

At least one carrier is included in Set A;

Embodiment 6:

At least one carrier is included in Set A;

P1: The synchronization reference is SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the coverage indication reference indication is true/The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 0, and the SLSS is in the Carriers transmitted on three sets of synchronized resources

P2: The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is not transmitted on the third set of synchronization resources, and the coverage indication parameter indicates a carrier with false

P2: The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE is 337, and the coverage indication parameter indicates a carrier with false

P3: The synchronization reference is the carrier of gNB/eNB

P4: The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE belongs to the SLSS ID set/partial set defined within the coverage range, and the coverage indication parameter indicates a carrier that is true

P5: The synchronization reference is a SyncRef UE, and the SLSS ID of the SyncRef UE belongs to the SLSS ID set/partial set defined within the coverage range, and the coverage indication parameter indicates a carrier with false

P6: The synchronization reference is the carrier of other SyncRef UE

At least one carrier is included in Set A;

Then select a gnss reliable carrier from the carriers included in SetA as the synchronization carrier;

At least one carrier is included in Set A;

P1: The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and the coverage indication reference indication is true/The synchronization reference is SyncRef UE, and the SLSS ID of SyncRef UE is 0, and SLSS is transmitted on the third set of synchronization resources carrier

P3: The synchronization reference is the carrier of gNB/eNB

P6: The synchronization reference is the carrier of other SyncRef UE

None of the carriers are included in Set A;

Embodiment 7:

At least one carrier is included in Set A;

P3: The synchronization reference is the carrier of gNB/eNB

P6: The synchronization reference is the carrier of other SyncRef UE. It can be understood that the above selection priority order from high to low is: P1, P2, P3, P4, P5, P6.

Example 1:

At least one carrier is included in Set A;

P3: The synchronization reference is the carrier of gNB/eNB

P6: The synchronization reference is the carrier of other SyncRef UE

The rules are as follows:

Example 2:

At least one carrier is included in Set A;

P3: The synchronization reference is the carrier of gNB/eNB

P6: The synchronization reference is the carrier of other SyncRef UE

The rules are as follows:

Example 3:

At least one carrier is included in Set A;

It should be noted that each method embodiment in this application can be executed independently or in combination with each other.

For the carrier determination method provided by the embodiment of the present application, the execution subject may be a carrier determination device. In the embodiment of this application, the carrier determination method of the carrier determination device is used as an example to describe the carrier determination device provided by the embodiment of this application.

Figure 3 shows a carrier determination device provided by an embodiment of the present application. The device 300 includes: a determination module 301; the determination module 301 is used to determine the first carrier, and the first carrier is used to determine the synchronization information and/or the first carrier Or the synchronization information of the second carrier.

Optionally, in this embodiment of the present application, the above-mentioned determination module is specifically used for at least one of the following:

Determine the first carrier based on preconfiguration or network side device configuration or network side device indication;

Determine the first carrier based on the selection priority;

Determine the first carrier in the first carrier set;

Based on the first information, a first carrier is determined.

Optionally, in this embodiment of the present application, the above selection priority includes at least one of the following:

Select priority relationships;

Select priority order;

Wherein, the above-mentioned selection priority relationship includes: a mapping relationship between at least one selection priority and at least one carrier; the above-mentioned selection priority order is the order of the above-mentioned at least one selection priority.

Optionally, in this embodiment of the present application, the above-mentioned determination module 301 is specifically used for at least one of the following:

Determine and select the carrier with the highest priority as the first carrier;

Determine the carrier whose selection priority is higher than the second selection priority as the first carrier;

Determine and select the carrier with the lowest priority as the first carrier;

Determine the carrier with a selection priority lower than the third selection priority as the first carrier;

The carrier whose selection priority is the fourth selection priority is determined to be the first carrier.

stipulated in the agreement;

network configuration;

preconfigured;

Network directed;

Synchronization reference priority indication information for at least some of the multiple carriers;

First indication information for at least some carriers among the plurality of carriers;

A synchronization reference priority type for at least some of the plurality of carriers;

Synchronization reference types for at least some of the plurality of carriers;

a second priority level for at least some of the plurality of carriers;

Carrier frequency points of at least part of the plurality of carriers;

Carrier indexes for at least some of the plurality of carriers;

Synchronization resources for at least some of the plurality of carriers;

A synchronization parameter configuration method for at least some of the multiple carriers;

Wherein, the above synchronization parameter configuration method includes at least one of the following: network configuration, pre-configuration;

The above first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Whether synchronized directly or indirectly to at least one specific synchronization reference;

The above synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.

Optionally, in this embodiment of the present application, the plurality of carriers include at least one of the following:

Multiple carriers for CA transmission;

Multiple carriers for SL transmission;

The above-mentioned first carrier set;

second carrier set;

Third carrier set.

Synchronization reference type;

Synchronization reference priority;

Carrier frequency point;

carrier index;

Synchronize resources;

agreement;

Network configuration information;

Preconfiguration information;

Network instructions;

second information;

Second priority;

Wherein, the above-mentioned synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and,

UE internal clock;

The above-mentioned second information includes at least one of the following:

Coverage instructions.

Optionally, in this embodiment of the present application, the at least one carrier includes at least one of the following:

The synchronization reference is a first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the coverage indication reference indicates the carrier of the third information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the SLSS of the synchronization reference is a carrier transmitted on the first synchronization resource;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the second ID, and the coverage indication parameter indicates the carrier of the fourth information;

Wherein, the above-mentioned first synchronization reference type includes any one of the following: UE, gNB, eNB, GNSS, and UE internal clock;

The above-mentioned first SLSS ID set includes: at least part of the SLSS ID set defined within the coverage of the carrier;

The above-mentioned first synchronization resources include: the third set of synchronization resources specified in the agreement.

Determined based on the synchronization reference priority order corresponding to at least one carrier;

In the case where the synchronization reference priority sequence corresponding to at least one carrier includes an overlapping part, the priority sequence is determined based on the synchronization reference priority of the overlapping part;

In the case where the synchronization reference priority order corresponding to at least one carrier includes an overlapping part, it is determined based on the priority order of the synchronization reference priority except the overlapping part;

Determined based on the arrangement order of carriers;

Determined based on synchronization reference information of at least one carrier;

Determined based on the synchronization parameter configuration method of at least one carrier;

Determined based on carrier frequency;

Carrier-based second priority determination;

Determined based on carrier index;

Determined based on synchronized resources;

Wherein, the above-mentioned synchronization reference information includes at least one of the following: synchronization reference priority, synchronization reference type, SLSS ID information, and coverage indication parameter information;

first instruction information;

Protocol predefined;

Network Configuration;

network instructions;

preconfigured;

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

The selection priority corresponding to the carrier with the first synchronization reference priority, the selection priority corresponding to the carrier with the second synchronization reference priority; the first synchronization reference priority is higher than the second synchronization reference priority, and/ Or, the first synchronization reference priority is a predetermined synchronization reference priority;

The selection priority corresponding to the carrier of the first synchronization reference type is higher or lower than the selection priority corresponding to the carrier of the second synchronization reference type; the first synchronization reference type is a predetermined synchronization reference type;

The selection priority corresponding to the carrier at the first carrier frequency is higher or lower than the selection priority corresponding to the carrier at the second carrier frequency; the first carrier frequency is greater than the second carrier frequency, and/or, One carrier frequency point is a predetermined carrier frequency point;

The selection priority corresponding to the carrier with the second priority and the third priority is higher or lower than the selection priority corresponding to the carrier with the second priority and the fourth priority; the third priority is higher than the fourth priority, and/or, the third priority is the predetermined priority;

The selection priority corresponding to the carrier of the first carrier index is higher or lower than the selection priority corresponding to the carrier of the second carrier index; the first carrier index is higher than the second carrier index, and/or, the first carrier index is the predetermined carrier index;

The selection priority corresponding to the carrier of the first synchronization signal is higher or lower than the selection priority corresponding to the carrier of the second synchronization signal; the period of the first synchronization signal is greater than the period of the second synchronization signal, and/or, the first synchronization signal The period of the signal is the first predetermined period;

The selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the first value is higher or lower than the selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the second value; the first value is greater than the second value. binary value, and/or, the first value is a first predetermined value;

The selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the third value is higher or lower than the selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the fourth value; the third value is greater than the fourth value , and/or, the third value is the second predetermined value;

The selection priority corresponding to the carrier with the first synchronization time slot offset is higher or lower than the selection priority corresponding to the carrier with the second synchronization time slot offset; the first synchronization time slot offset is greater than the second synchronization time slot offset, and/or, the first synchronization time slot offset is a predetermined synchronization time slot offset;

The time interval of the synchronization signal is the selection priority corresponding to the carrier in the first time interval, which is higher or lower than the selection priority corresponding to the carrier in the second time interval; the first time interval is greater than the second time interval, and/or , the first time interval is a predetermined time interval.

The selection priority corresponding to the carriers of the first SCS interval is higher or lower than the selection priority corresponding to the carriers of the second SCS interval; the first SCS interval is greater than the second SCS interval, and/or the first SCS interval is Scheduled SCS intervals.

Optionally, in this embodiment of the present application, the above-mentioned first carrier set is determined based on at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Wherein, the above-mentioned second carrier set includes: carriers that can be used as synchronization carriers, and the above-mentioned third carrier set includes Includes: the set of available synchronization carriers.

Determine at least one carrier from the first carrier set as the first carrier;

Determine at least one carrier that satisfies the first condition from the first carrier set as the first carrier;

Use a carrier in the first carrier set with a selection priority higher than the fifth selection priority as the first carrier;

Select the carrier with the highest priority from at least one of the first carrier sets as the first carrier;

Use the carrier with a selection priority lower than the sixth selection priority in the first carrier set as the first carrier;

Select the carrier with the lowest priority from the first carrier set as the first carrier;

The carrier with the seventh selection priority in the first carrier set is used as the first carrier.

Optionally, in this embodiment of the present application, the above-mentioned carriers that meet the first condition include at least one of the following:

GNSS reliable carrier;

The carrier where the DL SSB used for synchronization is located;

The carrier where the serving cell is located;

Anchor carrier;

Optionally, in this embodiment of the present application, the determining module 301 is also used to determine whether the first carrier set is an empty set or there is a synchronization reference determined by at least one carrier and a synchronization reference priority indication based on the at least one carrier. If the allowable synchronization references obtained from the information are inconsistent, the synchronization reference is determined separately for each carrier in the first carrier set.

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Synchronized reference order;

Synchronization reference priority indication information;

How to configure synchronization parameters;

coverage status;

The number of elements of the first carrier set;

Wherein, the above-mentioned synchronization reference sequence includes at least one of the following:

The priority order of the priority corresponding to the synchronization reference;

Reference signal received power RSRP strength sequence;

The sequence of time points searched by the terminal;

Optionally, in this embodiment of the present application, the determination module is specifically used for at least one of the following:

The carrier whose frequency point satisfies the second condition is determined to be the first carrier;

Determine the carrier whose carrier index satisfies the third condition as the first carrier;

Determine the carrier whose second priority meets the fourth condition as the first carrier;

Determine the Uu/DL carrier that meets the fifth condition as the first carrier;

Determine the carrier whose synchronization resources meet the sixth condition as the first carrier;

The carrier whose synchronization reference priority satisfies the seventh condition is determined to be the first carrier.

Optionally, in the embodiment of this application,

The above-mentioned second priority includes at least one of the following:

The priority or priority group of the synchronization reference;

Business priorities;

Priority of synchronized resources;

and / or,

The above synchronization resources include at least one of the following:

The period of the synchronization signal;

The number of repetitions of the synchronization signal;

Synchronization slot offset;

time interval;

SCS;

Optionally, in the embodiment of this application,

The above-mentioned carriers that meet the second condition include at least one of the following:

The carrier with the largest carrier frequency;

The carrier with the smallest carrier frequency;

A carrier whose frequency point is within the second predetermined frequency range;

The above-mentioned carriers that meet the third condition include at least one of the following:

The carrier with the largest carrier index;

The carrier with the smallest carrier index;

The carrier index is the carrier of the first predetermined index;

A carrier whose carrier index is within the first predetermined index range;

The above-mentioned carriers that meet the fourth condition include at least one of the following:

The carrier with the second highest priority;

The carrier with the second smallest priority;

The second priority is a carrier with a predetermined priority;

The above-mentioned carriers that meet the fifth condition include at least one of the following:

The carrier where the serving cell is located;

Anchor carrier.

Optionally, in the embodiment of this application,

The above-mentioned carriers that meet the sixth condition include at least one of the following:

The carrier with the largest period of the synchronization signal;

The carrier with the smallest period of the synchronization signal;

The carrier with the largest number of synchronization time slots in the cycle;

The carrier with the largest number of S-SSB repeats;

The carrier with the smallest number of repeats of S-SSB;

The carrier with the largest synchronization slot offset;

The carrier with the smallest synchronization slot offset;

The carrier with the largest S-SSB time interval;

The largest carrier of SCS;

The smallest carrier of SCS;

The SCS is the carrier of the second predetermined SCS.

Optionally, in the embodiment of this application,

The above-mentioned carriers that meet the seventh condition include at least one of the following:

Synchronization refers to the carrier with the highest priority;

Synchronization refers to the carrier with the lowest priority;

The above-mentioned third synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.

Optionally, in this embodiment of the present application, the above-mentioned second carrier includes at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Wherein, the above-mentioned second carrier set includes: carriers that can be used as synchronization carriers; the above-mentioned third carrier set includes: an available synchronization carrier set; the synchronization resources are configured or pre-configured.

sync reference;

timing information;

time-frequency information.

Optionally, in the embodiment of this application,

When the synchronization information includes time-frequency information, the above-mentioned determination module is also configured to determine the time-frequency information of the second carrier based on the synchronization information of the first carrier.

In the carrier determination device provided in the embodiment of the present application, the terminal determines the first carrier, and the first carrier is used to determine the synchronization information of the first carrier and/or the synchronization information of the second carrier. Through this method, the terminal can determine the first carrier and determine the synchronization information of itself and other carriers through the first carrier. Since the synchronization information corresponding to the first carrier and the second carrier is determined based on the first carrier, therefore It can realize timing synchronization of each carrier during data transmission, thereby improving the reliability of the communication system.

The determining device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.

The carrier determination apparatus provided by the embodiments of this application can implement each process implemented by the method embodiments in Figures 1 and 2, and achieve the same technical effect. To avoid duplication, the details will not be described here.

Optionally, as shown in Figure 4, this embodiment of the present application also provides a communication device 400, which includes a processor 401 and a memory 402. The memory 402 stores programs or instructions that can be run on the processor 401, such as , when the communication device 400 is a terminal, when the program or instruction is executed by the processor 401, each step of the above carrier determination method embodiment is implemented, and the same technical effect can be achieved. When the communication device 400 is a network-side device, when the program or instruction is executed by the processor 401, each step of the above carrier determination method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details are not repeated here.

An embodiment of the present application also provides a terminal, including a processor and a communication interface. The processor is used to determine a first carrier, and the first carrier is used to determine synchronization information of the first carrier and/or synchronization information of the second carrier. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 5 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

The terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, etc. At least some parts.

Those skilled in the art can understand that the terminal 500 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 510 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 5 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.

It should be understood that in the embodiment of the present application, the input unit 504 may include a graphics processing unit (Graphics Processing Unit, GPU) 5041 and a microphone 5042. The graphics processor 5041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras). The display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes a touch panel 5071 and at least one of other input devices 5072 . Touch panel 5071, also called touch screen. The touch panel 5071 may include two parts: a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 501 can transmit it to the processor 510 for processing; in addition, the radio frequency unit 501 can send uplink data to the network side device. usually, The radio frequency unit 501 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low noise amplifiers, duplexers, etc.

Memory 509 may be used to store software programs or instructions as well as various data. The memory 509 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 509 may include volatile memory or non-volatile memory, or memory 509 may include both volatile and non-volatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory x09 in the embodiment of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 510 may include one or more processing units; optionally, the processor 510 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 510.

The processor 510 is used to determine the first carrier, and the first carrier is used to determine the synchronization information of the first carrier and/or the synchronization information of the second carrier.

Optionally, in this embodiment of the present application, the above-mentioned processor 510 is specifically used for at least one of the following:

Determine the first carrier based on the selection priority;

Determine the first carrier in the first carrier set;

Based on the first information, a first carrier is determined.

Select priority relationships;

Choose a priority order.

Determine and select the carrier with the lowest priority as the first carrier;

stipulated in the agreement;

network configuration;

preconfigured;

Network directed;

Synchronization reference priority indication information;

first instruction information;

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Carrier frequency point;

carrier index;

Synchronize resources;

Synchronization parameter configuration method;

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Synchronization reference type;

Synchronization reference priority;

Carrier frequency point;

carrier index;

Synchronize resources;

agreement;

Network configuration information;

Preconfiguration information;

Network instructions;

second information;

Second priority;

Wherein, the above synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock;

The above-mentioned second information includes at least one of the following:

Coverage instructions.

The synchronization reference is a first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the coverage indication reference indicates a carrier of the third information;

Determined based on the arrangement order of carriers;

Determined based on carrier frequency;

Carrier-based second priority determination;

Determined based on carrier index;

Determined based on synchronized resources;

first instruction information;

Protocol predefined;

Network Configuration;

network instructions;

preconfigured;

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

The selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the first value is higher or lower than the selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the second value; the first value is greater than the said third value. binary value, and/or, the first value is a first predetermined value;

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Determine at least one carrier from the first carrier set as the first carrier;

GNSS reliable carrier;

The carrier where the DL SSB used for synchronization is located;

The carrier where the serving cell is located;

Anchor carrier;

Optionally, in this embodiment of the present application, the above-mentioned processor 510 is also configured to: when the first carrier set is an empty set, or there is a synchronization reference determined by at least one carrier and synchronization reference priority indication information according to the at least one carrier If the obtained allowable synchronization references are inconsistent, the synchronization references are respectively determined for each carrier in the first carrier set.

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Synchronized reference order;

Synchronization reference priority indication information;

How to configure synchronization parameters;

coverage status;

The number of elements of the first carrier set;

Reference signal received power RSRP strength sequence;

The sequence of time points searched by the terminal;

Optionally, in the embodiment of this application,

The above-mentioned second priority includes at least one of the following:

The priority or priority group of synchronization references;

Business priorities;

Priority of synchronized resources;

and / or,

The above synchronization resources include at least one of the following:

The period of the synchronization signal;

The number of repetitions of the synchronization signal;

Synchronization slot offset;

time interval;

SCS;

Optionally, in the embodiment of this application,

The carrier with the largest carrier frequency;

The carrier with the smallest carrier frequency;

The carrier with the largest carrier index;

The carrier with the smallest carrier index;

The carrier index is the carrier of the first predetermined index;

A carrier whose carrier index is within the first predetermined index range;

The carrier with the second highest priority;

The carrier with the second smallest priority;

The second priority is a carrier with a predetermined priority;

The carrier where the serving cell is located;

Anchor carrier.

Optionally, in the embodiment of this application,

The carrier with the largest period of the synchronization signal;

The carrier with the smallest period of the synchronization signal;

The carrier with the largest number of synchronization time slots in the cycle;

The carrier with the largest number of S-SSB repeats;

The carrier with the smallest number of repeats of S-SSB;

The carrier with the largest synchronization slot offset;

The carrier with the smallest synchronization slot offset;

The carrier with the largest S-SSB time interval;

The largest carrier of SCS;

The smallest carrier of SCS;

The SCS is the carrier of the second predetermined SCS.

Optionally, in the embodiment of this application,

Synchronization refers to the carrier with the highest priority;

Synchronization refers to the carrier with the lowest priority;

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

sync reference;

timing information;

time frequency information.

Optionally, in the embodiment of this application,

When the synchronization information includes time-frequency information, the above-mentioned processor 510 is also configured to determine the time-frequency information of the second carrier based on the synchronization information of the first carrier.

In the terminal provided in the embodiment of the present application, the terminal determines a first carrier, and the first carrier is used to determine synchronization information of the first carrier and/or synchronization information of the second carrier. Through this method, the terminal can determine the first carrier and determine the synchronization information of itself and other carriers through the first carrier. Since the synchronization information corresponding to the first carrier and the second carrier is determined based on the first carrier, therefore It can realize timing synchronization of each carrier during data transmission, thereby improving the reliability of the communication system.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above carrier determination method embodiment is implemented, and the same can be achieved. The technical effects will not be repeated here to avoid repetition.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above embodiment of the carrier determination method. Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application further provide a computer program/program product. The computer program/program product is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the above embodiment of the carrier determination method. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology can be embodied in the form of a computer software product. The computer software product exists Stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including a number of instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.) to execute various embodiments of the present application the method described.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A carrier determination method, the method includes:

The terminal determines a first carrier, which is used to determine synchronization information of the first carrier and/or synchronization information of the second carrier.
The method according to claim 1, wherein the terminal determines the first carrier, including at least one of the following:

Determine the first carrier based on preconfiguration or network side device configuration or network side device indication;

Determining the first carrier based on selection priority;

Determine the first carrier in a first carrier set;

Based on the first information, a first carrier is determined.
The method of claim 2, wherein the selection priority is determined based on at least one of the following:

Select priority relationships;

Select priority order;

Wherein, the selection priority relationship includes: a mapping relationship between at least one selection priority and at least one carrier.
The method according to claim 2, wherein the determining the first carrier based on selection priority includes at least one of the following:

Determine and select the carrier with the highest priority as the first carrier;

Determine the carrier with a selection priority higher than the second selection priority as the first carrier;

Determine and select the carrier with the lowest priority as the first carrier;

Determine that the carrier with a selection priority lower than the third selection priority is the first carrier;

The carrier whose selection priority is the fourth selection priority is determined to be the first carrier.
The method of claim 2, wherein the selection priority is determined based on at least one of the following:

stipulated in the agreement;

network configuration;

preconfigured;

Network directed;

Synchronization reference priority indication information;

first instruction information;

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Carrier frequency point;

carrier index;

Synchronize resources;

Synchronization parameter configuration method;

Wherein, the synchronization parameter configuration method includes at least one of the following: network configuration, pre-configuration;

The first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Whether synchronized directly or indirectly to at least one specific synchronization reference;

The synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The method of claim 3, wherein the at least one carrier is determined based on at least one of the following:

Synchronization reference type;

Synchronization reference priority;

Carrier frequency point;

carrier index;

Synchronize resources;

agreement;

Network configuration information;

Preconfiguration information;

Network instructions;

second information;

Second priority;

Wherein, the synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock;

The second information includes at least one of the following:

The bypass synchronization signal SLSS identification ID information of the synchronization reference type;

The transmission resource information of the bypass synchronization signal SLSS of the synchronization reference type;

Coverage instructions.
The method according to claim 3 or 6, wherein the at least one carrier includes at least one of the following:

The synchronization reference is a first synchronization reference type, and the bypass synchronization signal SLSS identification ID of the first synchronization reference type belongs to the first SLSS ID set, and the coverage indication parameter indicates the carrier of the third information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type belongs to the first SLSS ID set, and the coverage indication parameter indicates the carrier of the fourth information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the coverage indication reference indicates a carrier of the third information,

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the SLSS of the synchronization reference is a carrier transmitted on the first synchronization resource;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the SLSS of the synchronization reference is not transmitted on the first synchronization resource, and the coverage indication parameter indicates the first synchronization resource. Four information carriers;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the second ID, and the coverage indication parameter indicates the carrier of the fourth information;

Wherein, the first synchronization reference type includes any one of the following: UE, gNB, eNB, GNSS, and UE internal clock;

The first SLSS ID set includes: at least part of the SLSS ID set defined within the coverage range of the carrier;

The first synchronization resources include: a third set of synchronization resources agreed upon in the protocol.
The method of claim 3, wherein the selection priority order is determined based on at least one of the following:

Determined based on the synchronization reference priority order corresponding to the carrier;

In the case where the synchronization reference priority order corresponding to the carrier includes an overlapping part, it is determined based on the priority order of the synchronization reference priority of the overlapping part;

In the case where the synchronization reference priority order corresponding to the carrier includes an overlapping part, it is determined based on the priority order of the synchronization reference priority except the overlapping part;

Determined based on the arrangement order of carriers;

Determined based on the synchronization reference information of the carrier;

Determined based on the carrier synchronization parameter configuration method;

Determined based on carrier frequency;

Carrier-based second priority determination;

Determined based on carrier index;

Determined based on synchronized resources;

Wherein, the synchronization reference information includes at least one of the following: synchronization reference priority, synchronization reference type, SLSS ID information, and coverage indication parameter information;

The synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The method of claim 8, wherein the overlapping portion of the synchronization reference priority order is determined based on at least one of the following:

Synchronization reference priority indication information corresponding to the synchronization reference priority order;

first instruction information;

Protocol predefined;

Network Configuration;

network instructions;

preconfigured;

Wherein, the first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Whether to synchronize directly or indirectly to at least one specific synchronization reference.
The method according to claim 3, wherein the selection priority order satisfies at least one of the following:

The selection priority corresponding to the carrier with the first synchronization reference priority is higher or lower than the selection priority corresponding to the carrier with the second synchronization reference priority; the first synchronization reference priority is higher than the second synchronization reference priority. level, and/or, the first synchronization reference priority is a predetermined synchronization reference priority;

The selection priority corresponding to the carrier of the first synchronization reference type is higher or lower than the selection priority corresponding to the carrier of the second synchronization reference type; the first synchronization reference type is a predetermined synchronization reference type;

The selection priority corresponding to the carrier at the first carrier frequency is higher or lower than the selection priority corresponding to the carrier at the second carrier frequency; the first carrier frequency is greater than the second carrier frequency, and/or , the first carrier frequency point is a predetermined carrier frequency point;

The selection priority corresponding to the carrier whose second priority is the third priority is higher or lower than the selection priority corresponding to the carrier whose second priority is the fourth priority; the third priority is higher than the selection priority of the fourth priority. Four priority levels, and/or the third priority level is a predetermined priority level;

The selection priority corresponding to the carrier of the first carrier index is higher or lower than the selection priority corresponding to the carrier of the second carrier index; the first carrier index is higher than the second carrier index, and/or, the The first carrier index is a predetermined carrier index;

Wherein, the first synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock; the second synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, And, UE internal clock.
The method according to claim 8, wherein the selection priority order satisfies at least one of the following:

The selection priority corresponding to the carrier of the first synchronization signal is higher or lower than the selection priority corresponding to the carrier of the second synchronization signal; the period of the first synchronization signal is greater than the period of the second synchronization signal, and/or, so The period of the first synchronization signal is a first predetermined period;

The selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the first value is higher or lower than the selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the second value; the first value is greater than the selection priority the second value, and/or the first value is a first predetermined value;

The selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the third value is higher or lower than the selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the fourth value; the third value is greater than the third value. four values, and/or the third value is a second predetermined value;

The selection priority corresponding to the carrier with the first synchronization time slot offset is higher or lower than the selection priority corresponding to the carrier with the second synchronization time slot offset; the first synchronization time slot offset is greater than the first synchronization time slot offset. The second synchronization time slot offset, and/or the first synchronization time slot offset is a predetermined synchronization time slot offset;

The time interval of the synchronization signal is the selection priority corresponding to the carrier in the first time interval, which is higher or lower than the selection priority corresponding to the carrier in the second time interval; the first time interval is greater than the second time interval, and /or, the first time interval is a predetermined time interval;

The selection priority corresponding to the carriers of the first SCS interval is higher or lower than the selection priority corresponding to the carriers of the second SCS interval; the first SCS interval is greater than the second SCS interval, and/or the third SCS interval An SCS interval is a predetermined SCS interval.
The method of claim 2, wherein the first carrier set is determined based on at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Wherein, the second carrier set includes carriers that can be used as synchronization carriers, and the third carrier set includes an available synchronization carrier set.
The method according to claim 3, wherein determining the first carrier in the first carrier set includes at least one of the following:

Determine at least one carrier from the first carrier set as the first carrier;

Determine at least one carrier that satisfies the first condition from the first carrier set as the first carrier;

Use a carrier in the first carrier set with a selection priority higher than the fifth selection priority as the first carrier;

Use the carrier with the highest selection priority in the first carrier set as the first carrier;

Use a carrier in the first carrier set with a selection priority lower than the sixth selection priority as the first carrier;

Use the carrier with the lowest selection priority in the first carrier set as the first carrier;

The carrier whose selection priority is the seventh selection priority in the first carrier set is used as the first carrier.
The method according to claim 13, wherein the carrier satisfying the first condition includes at least one of the following:

GNSS reliable carrier;

The carrier frequency point belongs to a carrier within the first predetermined frequency range;

The carrier where the DL SSB used for synchronization is located;

The carrier where the serving cell is located;

Anchor carrier;

Wherein, the first predetermined frequency range includes: low frequency or target frequency range; the carrier where the serving cell is located includes: the carrier where the primary cell Pcell is located.
The method of claim 2, further comprising:

When predetermined conditions are met, determine a synchronization reference for each carrier in the first carrier set;

The predetermined conditions include at least one of the following:

The first carrier set is an empty set;

There is a synchronization reference determined by at least one carrier, which is inconsistent with the allowable synchronization reference obtained according to the synchronization reference priority indication information of the at least one carrier.
The method of claim 2, wherein the first information includes at least one of the following:

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Synchronized reference order;

Synchronization reference priority indication information;

How to configure synchronization parameters;

coverage status;

The number of elements of the first carrier set;

Wherein, the synchronization reference sequence includes at least one of the following:

The priority order of the priority corresponding to the synchronization reference;

Reference signal received power RSRP strength sequence;

The sequence of time points searched by the terminal;

The synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The method according to claim 1 or 2, wherein determining the first carrier includes at least one of the following:

Determine the carrier whose carrier frequency meets the second condition to be the first carrier;

Determine the carrier whose carrier index satisfies the third condition to be the first carrier;

Determine the carrier whose second priority meets the fourth condition as the first carrier;

Determine the cellular communication Uu carrier or downlink DL carrier that meets the fifth condition as the first carrier;

Determine that the carrier whose synchronization resources meet the sixth condition is the first carrier;

The carrier whose synchronization reference priority satisfies the seventh condition is determined to be the first carrier.
The method according to claim 5 or 6 or 8 or 16 or 17, wherein,

The second priority includes at least one of the following:

The priority or priority group of the synchronization reference;

Business priorities;

Priority of synchronized resources;

and / or,

The synchronization resources include at least one of the following:

The period of the synchronization signal;

The number of synchronization time slots within the cycle of the synchronization signal;

The number of repetitions of the synchronization signal;

Synchronization slot offset;

time interval;

SCS;

Wherein, the SCS includes at least one of the following: SCS of S-SSB, SCS of carrier.
The method of claim 17, wherein

The carriers that meet the second condition include at least one of the following:

The carrier with the largest carrier frequency;

The carrier with the smallest carrier frequency;

The carrier frequency point is the carrier wave of the second predetermined frequency point;

A carrier whose frequency point is within the second predetermined frequency range;

The carriers that meet the third condition include at least one of the following:

The carrier with the largest carrier index;

The carrier with the smallest carrier index;

The carrier index is the carrier of the first predetermined index;

A carrier whose carrier index is within the first predetermined index range;

The carriers that meet the fourth condition include at least one of the following:

The carrier with the second highest priority;

The carrier with the second smallest priority;

The second priority is a carrier with a predetermined priority;

The carriers that meet the fifth condition include at least one of the following:

The carrier on which the downlink synchronization signal is used for synchronization;

The carrier where the serving cell is located;

Anchor carrier.
The method of claim 17, wherein:

The carriers that meet the sixth condition include at least one of the following:

The carrier with the largest period of the synchronization signal;

The carrier with the smallest period of the synchronization signal;

The period of the synchronization signal is the carrier wave of the second predetermined period,

The carrier with the largest number of synchronization time slots in the cycle;

The carrier with the smallest number of synchronization time slots in the cycle;

The number of synchronization time slots in the cycle is the first predetermined number of carriers;

The carrier with the largest number of S-SSB repeats;

The carrier with the smallest number of repeats of S-SSB;

The number of repetitions of S-SSB is the first predetermined number of repetitions of carriers;

The carrier with the largest synchronization slot offset;

The carrier with the smallest synchronization slot offset;

The synchronization time slot offset is the carrier of the first predetermined time slot offset;

The carrier with the largest S-SSB time interval;

The time interval of S-SSB is the carrier of the first predetermined time interval;

The largest carrier of SCS;

The smallest carrier of SCS;

The SCS is the carrier of the second predetermined SCS.
The method of claim 17, wherein

The carriers that meet the seventh condition include at least one of the following:

Synchronization refers to the carrier with the highest priority;

Synchronization refers to the carrier with the lowest priority;

The synchronization reference is a carrier of the third synchronization reference type;

The third synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The method according to claim 1, wherein the second carrier includes at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Wherein, the second carrier set includes: carriers that can be used as synchronization carriers; the third carrier set includes: an available synchronization carrier set; the synchronization resources are configured or preconfigured.
The method according to claim 1, wherein the synchronization information includes at least one of the following:

sync reference;

timing information;

time-frequency information.
The method according to claim 23, wherein when the synchronization information includes time-frequency information, the method further includes:

The terminal determines the time-frequency information of the second carrier based on the synchronization information of the first carrier.
A carrier determination device, the device includes: a determination module;

The determining module is used to determine a first carrier, and the first carrier is used to determine synchronization information of the first carrier and/or synchronization information of the second carrier.
The device according to claim 25, wherein the determining module is specifically used for at least one of the following:

Determine the first carrier based on preconfiguration or network side device configuration or network side device indication;

Determining the first carrier based on selection priority;

Determine the first carrier in a first carrier set;

Based on the first information, a first carrier is determined.
The apparatus of claim 26, wherein the selection priority is determined based on at least one of the following:

Select priority relationships;

Select priority order;

Wherein, the selection priority relationship includes: a mapping relationship between at least one selection priority and at least one carrier.
The device according to claim 26, wherein the determining module is specifically used for at least one of the following:

Determine and select the carrier with the highest priority as the first carrier;

Determine the carrier with a selection priority higher than the second selection priority as the first carrier;

Determine and select the carrier with the lowest priority as the first carrier;

Determine that the carrier with a selection priority lower than the third selection priority is the first carrier;

The carrier whose selection priority is the fourth selection priority is determined to be the first carrier.
The apparatus of claim 26, wherein the selection priority is determined based on at least one of the following:

stipulated in the agreement;

network configuration;

preconfigured;

Network directed;

Synchronization reference priority indication information;

first instruction information;

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Carrier frequency point;

carrier index;

Synchronize resources;

Synchronization parameter configuration method;

Wherein, the synchronization parameter configuration method includes at least one of the following: network configuration, pre-configuration;

The first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Whether synchronized directly or indirectly to at least one specific synchronization reference;

The synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The apparatus of claim 27, wherein the at least one carrier is determined based on at least one of the following:

Synchronization reference type;

Synchronization reference priority;

Carrier frequency point;

carrier index;

Synchronize resources;

agreement;

Network configuration information;

Preconfiguration information;

Network instructions;

second information;

Second priority;

Wherein, the synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock;

The second information includes at least one of the following:

The bypass synchronization signal SLSS identification ID information of the synchronization reference type;

The transmission resource information of the bypass synchronization signal SLSS of the synchronization reference type;

Coverage instructions.
The apparatus according to claim 27 or 30, wherein the at least one carrier includes at least one of the following:

The synchronization reference is a first synchronization reference type, and the bypass synchronization signal SLSS identification ID of the first synchronization reference type belongs to the first SLSS ID set, and the coverage indication parameter indicates the carrier of the third information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type belongs to the first SLSS ID set, and the coverage indication parameter indicates the carrier of the fourth information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the coverage indication reference indicates a carrier of the third information;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the SLSS of the synchronization reference is a carrier transmitted on the first synchronization resource;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the first ID, and the SLSS of the synchronization reference is not transmitted on the first synchronization resource, and the coverage indication parameter indicates the first synchronization resource. Four information carriers;

The synchronization reference is the first synchronization reference type, and the SLSS ID of the first synchronization reference type is the second ID, and the coverage indication parameter indicates the carrier of the fourth information;

Wherein, the first synchronization reference type includes any one of the following: UE, gNB, eNB, GNSS, and UE internal clock;

The first SLSS ID set includes: at least part of the SLSS ID set defined within the coverage range of the carrier;

The first synchronization resources include: a third set of synchronization resources agreed upon in the protocol.
The apparatus of claim 27, wherein the selection priority order is determined based on at least one of the following:

Determined based on the synchronization reference priority order corresponding to the carrier;

In the case where the synchronization reference priority order corresponding to the carrier includes an overlapping part, it is determined based on the priority order of the synchronization reference priority of the overlapping part;

In the case where the synchronization reference priority order corresponding to the carrier includes an overlapping part, it is determined based on the priority order of the synchronization reference priority except the overlapping part;

Determined based on the arrangement order of carriers;

Determined based on the synchronization reference information of the carrier;

Determined based on the carrier synchronization parameter configuration method;

Determined based on carrier frequency;

Carrier-based second priority determination;

Determined based on carrier index;

Determined based on synchronized resources;

Wherein, the synchronization reference information includes at least one of the following: synchronization reference priority, synchronization reference type, SLSS ID information, and coverage indication parameter information;

The synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The apparatus of claim 32, wherein the overlapping portion of the synchronization reference priority order is determined based on at least one of the following:

Synchronization reference priority indication information corresponding to the synchronization reference priority order;

first instruction information;

Protocol predefined;

Network Configuration;

network instructions;

preconfigured;

Wherein, the first indication information is used to indicate at least one of the following:

Whether at least one specific synchronization reference needs to be monitored;

Whether at least one specific synchronization reference needs to be skipped;

Whether to synchronize directly or indirectly to at least one specific synchronization reference.
The device according to claim 27, wherein the selection priority order satisfies at least one of the following:

The selection priority corresponding to the carrier with the first synchronization reference priority is higher or lower than the selection priority corresponding to the carrier with the second synchronization reference priority; the first synchronization reference priority is higher than the second synchronization reference priority. level, and/or, the first synchronization reference priority is a predetermined synchronization reference priority;

The selection priority corresponding to the carrier of the first synchronization reference type is higher or lower than the selection priority corresponding to the carrier of the second synchronization reference type; the first synchronization reference type is a predetermined synchronization reference type;

The selection priority corresponding to the carrier at the first carrier frequency is higher or lower than the selection priority corresponding to the carrier at the second carrier frequency; the first carrier frequency is greater than the second carrier frequency, and/or , the first carrier frequency point is a predetermined carrier frequency point;

The selection priority corresponding to the carrier whose second priority is the third priority is higher or lower than the selection priority corresponding to the carrier whose second priority is the fourth priority; the third priority is higher than the selection priority of the fourth priority. Four priority levels, and/or the third priority level is a predetermined priority level;

The selection priority corresponding to the carrier of the first carrier index is higher or lower than the selection priority corresponding to the carrier of the second carrier index; the first carrier index is higher than the second carrier index, and/or, the The first carrier index is a predetermined carrier index;

Wherein, the first synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock; the second synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, And, UE internal clock.
The device according to claim 32, wherein the selection priority order satisfies at least one of the following:

The selection priority corresponding to the carrier of the first synchronization signal is higher or lower than the selection priority corresponding to the carrier of the second synchronization signal; the period of the first synchronization signal is greater than the period of the second synchronization signal, and/or, so The period of the first synchronization signal is a first predetermined period;

The selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the first value is higher or lower than the selection priority corresponding to the carrier whose number of synchronization time slots in the cycle is the second value; the first value is greater than the selection priority the second value, and/or the first value is a first predetermined value;

The selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the third value is higher or lower than the selection priority corresponding to the carrier whose number of repetitions of the synchronization signal is the fourth value; the third value is greater than the third value. four values, and/or the third value is a second predetermined value;

The selection priority corresponding to the carrier with the first synchronization time slot offset is higher or lower than the selection priority corresponding to the carrier with the second synchronization time slot offset; the first synchronization time slot offset is greater than the first synchronization time slot offset. The second synchronization time slot offset, and/or the first synchronization time slot offset is a predetermined synchronization time slot offset;

The time interval of the synchronization signal is the selection priority corresponding to the carrier in the first time interval, which is higher or lower than the selection priority corresponding to the carrier in the second time interval; the first time interval is greater than the second time interval, and /or, the first time interval is a predetermined time interval;

The selection priority corresponding to the carrier in the first SCS interval is higher or lower than the selection priority corresponding to the carrier in the second SCS interval. Select a priority; the first SCS interval is greater than the second SCS interval, and/or the first SCS interval is a predetermined SCS interval.
The apparatus of claim 26, wherein the first set of carriers is determined based on at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Wherein, the second carrier set includes carriers that can be used as synchronization carriers, and the third carrier set includes an available synchronization carrier set.
The device according to claim 27, wherein the determining module is specifically used for at least one of the following:

Determine at least one carrier from the first carrier set as the first carrier;

Determine at least one carrier that satisfies the first condition from the first carrier set as the first carrier;

Use a carrier in the first carrier set with a selection priority higher than the fifth selection priority as the first carrier;

Select the carrier with the highest priority from at least one of the first carrier sets as the first carrier;

Use a carrier with a selection priority lower than the sixth selection priority in the first carrier set as the first carrier;

Select the carrier with the lowest priority from the first carrier set as the first carrier;

The carrier whose selection priority is the seventh selection priority in the first carrier set is used as the first carrier.
The apparatus according to claim 37, wherein the carrier satisfying the first condition includes at least one of the following:

GNSS reliable carrier;

The carrier frequency point belongs to a carrier within the first predetermined frequency range;

The carrier where the DL SSB used for synchronization is located;

The carrier where the serving cell is located;

Anchor carrier;

Wherein, the first predetermined frequency range includes: low frequency or target frequency range; the carrier where the serving cell is located includes: the carrier where the primary cell Pcell is located.
The device of claim 26, wherein:

The determination module is also configured to determine a synchronization reference for each carrier in the first carrier set if predetermined conditions are met;

The predetermined conditions include at least one of the following:

The first carrier set is an empty set;

There is a synchronization reference determined by at least one carrier, which is inconsistent with an allowable synchronization reference obtained according to the synchronization reference priority indication information of the at least one carrier.
The device of claim 26, wherein the first information includes at least one of the following:

Synchronization reference priority type;

Synchronization reference type;

Second priority;

Synchronized reference order;

Synchronization reference priority indication information;

How to configure synchronization parameters;

coverage status;

The number of elements of the first carrier set;

Wherein, the synchronization reference sequence includes at least one of the following:

The priority order of the priority corresponding to the synchronization reference;

Reference signal received power RSRP strength sequence;

The sequence of time points searched by the terminal;

The synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The device according to claim 25 or 26, wherein,

The determination module is specifically used for at least one of the following:

Determine the carrier whose carrier frequency meets the second condition to be the first carrier;

Determine the carrier whose carrier index satisfies the third condition to be the first carrier;

Determine the carrier whose second priority meets the fourth condition as the first carrier;

Determine the Uu/DL carrier that meets the fifth condition as the first carrier;

Determine that the carrier whose synchronization resources meet the sixth condition is the first carrier;

The carrier whose synchronization reference priority satisfies the seventh condition is determined to be the first carrier.
The device according to claim 29 or 31 or 33 or 40 or 41, wherein,

The second priority includes at least one of the following:

The priority or priority group of the synchronization reference;

Business priorities;

Priority of synchronized resources;

and / or,

The synchronization resources include at least one of the following:

The period of the synchronization signal;

The number of synchronization time slots within the cycle of the synchronization signal;

The number of repetitions of the synchronization signal;

Synchronization slot offset;

time interval;

SCS;

Wherein, the SCS includes at least one of the following: SCS of S-SSB, SCS of carrier.
The device of claim 41, wherein:

The carriers that meet the second condition include at least one of the following:

The carrier with the largest carrier frequency;

The carrier with the smallest carrier frequency;

The carrier frequency point is the carrier wave of the second predetermined frequency point;

A carrier whose frequency point is within the second predetermined frequency range;

The carriers that meet the third condition include at least one of the following:

The carrier with the largest carrier index;

The carrier with the smallest carrier index;

The carrier index is the carrier of the first predetermined index;

A carrier whose carrier index is within the first predetermined index range;

The carriers that meet the fourth condition include at least one of the following:

The carrier with the second highest priority;

The carrier with the second smallest priority;

The second priority is a carrier with a predetermined priority;

The carriers that meet the fifth condition include at least one of the following:

The carrier on which the downlink synchronization signal is used for synchronization;

The carrier where the serving cell is located;

Anchor carrier.
The device of claim 41, wherein:

The carriers that meet the sixth condition include at least one of the following:

The carrier with the largest period of the synchronization signal;

The carrier with the smallest period of the synchronization signal;

The period of the synchronization signal is the carrier wave of the second predetermined period,

The carrier with the largest number of synchronization time slots in the cycle;

The carrier with the smallest number of synchronization time slots in the cycle;

The number of synchronization time slots in the cycle is the first predetermined number of carriers;

The carrier with the largest number of S-SSB repeats;

The carrier with the smallest number of repeats of S-SSB;

The number of repetitions of S-SSB is the first predetermined number of repetitions of carriers;

The carrier with the largest synchronization slot offset;

The carrier with the smallest synchronization slot offset;

The synchronization time slot offset is the carrier of the first predetermined time slot offset;

The carrier with the largest S-SSB time interval;

The time interval of S-SSB is the carrier of the first predetermined time interval;

The largest carrier of SCS;

The smallest carrier of SCS;

The SCS is the carrier of the second predetermined SCS.
The device of claim 41, wherein:

The carriers that meet the seventh condition include at least one of the following:

Synchronization refers to the carrier with the highest priority;

Synchronization refers to the carrier with the lowest priority;

The synchronization reference is a carrier of the third synchronization reference type;

The third synchronization reference type includes at least one of the following: gNB, eNB, GNSS, UE, and UE internal clock.
The apparatus of claim 25, wherein the second carrier includes at least one of the following:

carriers in the second set of carriers;

Carriers in the third carrier set;

All carriers available for carrier aggregation CA transmission;

The carrier actually used for CA transmission;

The carrier once selected for CA transmission;

All carriers available for side-link SL transmission;

The carrier actually used for SL transmission;

The carrier once selected for SL transmission;

A carrier containing synchronization resources;

Wherein, the second carrier set includes: carriers that can be used as synchronization carriers; the third carrier set includes: an available synchronization carrier set; the synchronization resources are configured or preconfigured.
The device according to claim 25, wherein the synchronization information includes at least one of the following:

sync reference;

timing information;

time frequency information.
The device according to claim 47, wherein when the synchronization information includes time-frequency information, the determining module is further configured to determine the time of the second carrier based on the synchronization information of the first carrier. frequency information.
A terminal, including a processor and a memory, the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the implementation of any one of claims 1 to 24 is achieved. The steps of the carrier determination method described above.
A readable storage medium on which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps of the carrier determination method according to any one of claims 1 to 24 are implemented.