Time domain resource determination method, device, terminal and medium

Abstract

The present invention provides a method, device, terminal, and medium for determining time domain resources. The method includes: determining an S-SS / PSBCH block time domain resource, where the S-SS / PSBCH block is used to calculate RSRP and / or SINR; wherein the S-SS / PSBCH block time domain resource includes one of the following: a first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information; a second S-SS / PSBCH block time domain resource, which includes at least one first S-SS / PSBCH block time domain resource and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; and a third S-SS / PSBCH block time domain resource, which includes at least one fourth S-SS / PSBCH block time domain resource.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, device, terminal and medium for determining time domain resources. Background Art

[0002] The sidelink will target expanded commercial use cases such as augmented reality (AR) / virtual reality (VR) and real-time video sharing, supporting higher data rate (Gbps) services. To support these higher data rate services, enhancements will be studied in the FR2 licensed spectrum. Specifically, beam management enhancements will be implemented to support unicast services in the FR2 licensed spectrum band, including initial beam pairing, beam maintenance, and beam failure recovery.

[0003] However, the existing sidelink synchronization signal / physical sidelink broadcast channel block (S-SS / PSBCH block) only supports synchronization but not beam management. If the S-SS / PSBCH block is used as the measurement reference signal in beam management, the question of what design should be adopted for the S-SS / PSBCH block to achieve beam measurement between FR2 transceiver terminals is an urgent issue that needs to be addressed. Summary of the Invention

[0004] The purpose of the present invention is to provide a time domain resource determination method, device, terminal and medium to solve the problem of what kind of design should be adopted for the S-SS / PSBCH block when the S-SS / PSBCH block is used as a measurement reference signal in beam management to achieve beam measurement between FR2 transceiver terminals.

[0005] In order to achieve the above object, the present invention provides a time domain resource determination method, which is applied to a terminal and includes:

[0006] Determine the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, where the S-SS / PSBCH block is used to calculate the reference signal received power RSRP and / or the signal to interference plus noise ratio SINR;

[0007] The S-SS / PSBCH block time domain resource includes one of the following:

[0008] First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information;

[0009] Second S-SS / PSBCH block time domain resources; the second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed;

[0010] The third S-SS / PSBCH block time domain resources include at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR.

[0011] The determining of the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block includes:

[0012] Obtain configuration information, wherein the configuration information includes at least one of the following:

[0013] cycle;

[0014] The number of S-SS / PSBCH blocks; the number of S-SS / PSBCH blocks and the number of S-SS used to transmit direct link synchronization information / The number of PSBCH blocks is the same or different;

[0015] S-SS / PSBCH block time interval; the S-SS / PSBCH block time interval is the same as or different from the S-SSB time interval used to transmit direct link synchronization information;

[0016] Determine the S-SS / PSBCH block time domain resources according to the configuration information.

[0017] In which, the S-SS / PSBCH block time domain resources include the first S-SS / PSBCH block time domain resources or the second S-SS / PSBCH block time domain resources, and the decodification sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decodification sequence generation of PSBCH is initialized by a first identifier, and the first identifier is determined based on the identity identifier of the terminal.

[0018] The S-SS / PSBCH block time domain resources include a third S-SS / PSBCH block time domain resource, and the direct link synchronization identifier of the S-SS / PSBCH block is determined based on the identity identifier of the terminal.

[0019] The S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, the fourth S-SS / PSBCH block time domain resources are located in the first resource pool, and the first resource pool and the second resource pool are time-division multiplexed;

[0020] The first resource pool is a direct link resource pool dedicated to the first frequency band, and the second resource pool is a direct link communication resource pool.

[0021] The S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, and the fourth S-SS / PSBCH block time domain resources are located in the third resource pool or outside the third resource pool, wherein the third resource pool is a direct link resource pool supporting terminals of the first frequency band.

[0022] Among them, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, the low N1 bit in the PSBCH time slot index indication is used to indicate the time slot index of the first S-SS / PSBCH block time domain resources, and the high N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

[0023] The present invention also provides a time domain resource determination device, comprising:

[0024] A processing module, configured to determine a time domain resource of a direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCHblock, wherein the S-SS / PSBCH block is used to calculate a reference signal received power RSRP and / or a signal to interference plus noise ratio SINR;

[0025] The S-SS / PSBCH block time domain resource includes one of the following:

[0026] First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information;

[0027] Second S-SS / PSBCH block time domain resources; the second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed;

[0028] The third S-SS / PSBCH block time domain resources include at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR.

[0029] The present invention also provides a terminal, comprising: a memory, a processor, and a program stored in the memory and executable on the processor; when the processor executes the program, the time domain resource determination method as described above is implemented.

[0030] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which implements the steps in the time domain resource determination method as described above when the program is executed by a processor.

[0031] The above technical solution of the present invention has at least the following beneficial effects:

[0032] In an embodiment of the present invention, by determining the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, the S-SS / PSBCH block is used to calculate the reference signal received power RSRP and / or the signal to interference and noise ratio SINR; wherein the S-SS / PSBCH block time domain resources include one of the following: a first S-SS / PSBCH block time domain resources; the first S-SS / PSBCH block time domain resources are used to transmit direct link synchronization information; a second S-SS / PSBCH block time domain resources; the second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed; a third S-SS / PSBCH block time domain resources; the third S-SS / PSBCH The block time domain resources include at least a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR. In this way, by multiplexing or partially multiplexing the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, or designing a new S-SS / PSBCH block time domain resource for beam management, it is possible to achieve beam measurement between FR2 transceiver terminals when the S-SS / PSBCH block is used as a measurement reference signal in beam management. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram showing the physical structure of an existing S-SSB;

[0034] Figure 2 A schematic diagram showing the time slot structure of the existing S-SSB;

[0035] Figure 3 A schematic diagram showing a flow chart of a method for determining time domain resources according to an embodiment of the present invention;

[0036] Figure 4 A schematic diagram showing the location of time domain resources of a second S-SS / PSBCH block according to an embodiment of the present invention;

[0037] Figure 5 A schematic diagram showing beam transmission of a transmitting terminal corresponding to configuration 1 according to an embodiment of the present invention;

[0038] Figure 6A schematic diagram illustrating beam transmission of a transmitting terminal corresponding to configuration 2 of an embodiment of the present invention;

[0039] Figure 7 A schematic diagram illustrating a time slot index indication corresponding to a second S-SS / PSBCH block time domain resource solution according to an embodiment of the present invention;

[0040] Figure 8 A schematic diagram showing a module of a device for determining time domain resources according to an embodiment of the present invention;

[0041] Figure 9 A schematic diagram showing the hardware structure of a terminal according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0043] The existing S-SS / PSBCH block (hereinafter referred to as S-SSB) period is 160ms, and the number of S-SSBs in one period is S-SSB slot offset (i.e., the time slot offset between the first time slot at the start of a cycle and the first S-SSB that appears in the cycle), S-SSB time slot interval (i.e. the time slot interval between S-SSBs) is (pre)configured by higher layer parameters, such as Figure 1 shown.

[0044] Index of S-SSB within an S-SSB cycle Carried in the PSBCH, a total of 7 bits. Currently, in the sidelink FR2 band, a maximum of 64 S-SSBs can be configured in one S-SSB cycle.

[0045] An S-SSB occupies 13 OFDM symbols (normal CP) or 11 OFDM symbols (extended CP) in the time domain, including the direct link primary synchronization signal (S-PSS), direct link secondary synchronization signal (S-SSS) and PSBCH. An S-SSB occupies 132 consecutive REs (i.e., 11 PRBs) in the frequency domain. Taking the normal CP as an example, the time slot structure of an S-SSB is as follows: Figure 2 shown.

[0046] In the current Uu interface, terminals and base stations are the communicating parties, and all terminals must synchronize to the serving cell to obtain downlink synchronization and cell configuration information. However, the synchronization mechanism of the sidelink interface is significantly different from that of the Uu interface. The biggest difference is that the purpose of terminal synchronization is mainly to synchronize to a synchronization source and then obtain timing and TDD configuration (terminals must obtain TDD configuration to further determine the resources of the transmit and receive resource pool). Each terminal maintains its own set of timing. The two parties in sidelink communication are not necessarily synchronized to each other, nor are they necessarily synchronized to the same synchronization source. The details are as follows:

[0047] 1) From the perspective of terminal search for synchronization source: NR sidelink supports multiple types of synchronization sources, including Global Navigation Satellite System (GNSS), cell, and reference terminal (reference UE); the terminal can obtain timing information from any synchronization source; in addition, NR sidelink supports two types of synchronization priority, GNSS-based and gNB / eNB-based, and the sidelink synchronization priority type of a terminal is (pre-) configured. The two synchronization priorities define the priority of each synchronization source differently, as shown in Table 1. Taking GNSS-based synchronization priority as an example, GNSS itself has the highest priority P0. When a terminal can synchronize directly to GNSS, its synchronization priority is P1, and so on. When a terminal is able to search for multiple synchronization sources, the synchronization source with a higher priority is selected as the reference synchronization source; if the priorities of multiple synchronization sources are the same, the synchronization source with a higher RSRP is selected as the reference synchronization source.

[0048] Table 1

[0049]

[0050] 2) From the perspective of the terminal sending synchronization signals: NR sidelink has detailed definitions of the triggering conditions and sending rules for the direct link synchronization signal (SLSS). Not all terminals will send SLSS. The terminal will send SLSS when and only when a series of conditions specified in the protocol are met. For example, the frequency band for a terminal to perform sidelink communication is out-of-coverage (for example, the communication band is the ITS band), and the terminal has selected GNSS or cell as the synchronization source. If the terminal is in the RRC connected state and the SLSS sending field in the dedicated signaling is set to 0, the terminal will send SLSS. When the terminal needs to perform sidelink communication and meets the SLSS sending conditions defined by the protocol, it will send SLSS according to certain rules, as shown in Table 2 (taking GNSS-based synchronization priority as an example):

[0051] Table 2

[0052]

[0053]

[0054] The existing S-SSB only supports synchronization, but not beam management. If beam management is to be supported, the following enhancements are required:

[0055] First, regarding S-SSB time domain resources, the existing protocol defines three sets of time domain resource configurations (i.e., TimeAllocation 1, 2, and 3). Whether it is necessary to reuse existing time domain resources or define new time domain resources, that is, how to design S-SSB time domain resources for beam management,

[0056] 2. Assuming that existing time domain resources are reused, the terminal used for beam management can use the existing time domain resources to send S-SSBs for beam management; however, the SLSS ID in the existing protocol and the content sent on multiple SSB sending opportunities (i.e., multiple instances) within the S-SSB period cannot be guaranteed to support the beam management function.

[0057] In other words, using the S-SS / PSBCH block as the measurement reference signal in beam management, what kind of design should be adopted for the S-SS / PSBCH block to achieve beam measurement between FR2 transceiver terminals is an urgent problem that needs to be solved.

[0058] To address the above technical issues, the present invention provides a method, apparatus, terminal, and medium for determining time domain resources. The method and apparatus are based on the same patent application concept. Since the method and apparatus solve similar problems, the implementation of the apparatus and method can refer to each other, and any repetitions will not be repeated.

[0059] like Figure 3 FIG. 1 is a flow chart of a method for determining time domain resources according to an embodiment of the present invention. The method may specifically include:

[0060] Step 301: Determine the time domain resources of a direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, where the S-SS / PSBCH block is used to calculate the reference signal received power RSRP and / or the signal to interference plus noise ratio SINR.

[0061] The S-SS / PSBCH block time domain resource includes one of the following:

[0062] First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information;

[0063] Second S-SS / PSBCH block time domain resources; the second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed;

[0064] The third S-SS / PSBCH block time domain resources include at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR.

[0065] It should be noted that the method of the present invention is performed by a terminal that supports beam management. The S-SS / PSBCH block is used to calculate the reference signal received power (RSRP) and / or signal-to-interference-plus-noise ratio (SINR). In other words, the S-SS / PSBCH block of the present invention serves as a measurement reference signal for beam management.

[0066] It should be understood that the first S-SS / PSBCH block time domain resource reuses the existing S-SS / PSBCH block time domain resource used to transmit direct link synchronization information, which can save S-SS / PSBCH block time domain resource overhead.

[0067] See also Figure 4 The second S-SS / PSBCH block time domain resources are partially reused from the existing S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, and partially newly added (newly defined) S-SS / PSBCH block time domain resources used to calculate RSRP and / or SINR. This can reduce the design complexity of the S-SS / PSBCH block and save the S-SS / PSBCH block time domain resource overhead to a certain extent. It should be noted that the 7-bit time slot index indication in the full PSBCH indicates a maximum of 128 positions (i.e., the positions corresponding to the 128 S-SS / PSBCH block time domain resources), of which 64 positions reuse the existing S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, and the newly added maximum 64 positions are defined as S-SS / PSBCH block time domain resources used to calculate RSRP and / or SINR.

[0068] The third S-SS / PSBCH block time domain resources are all newly added (newly defined) S-SS / PSBCH block time domain resources used to calculate RSRP and / or SINR, which can be optimized for beam management without backward compatibility issues.

[0069] The method of the embodiment of the present invention, by multiplexing or partially multiplexing the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, or designing a new S-SS / PSBCH block time domain resources for beam management, can realize beam measurement between FR2 transceiver terminals when the S-SS / PSBCH block is used as a measurement reference signal in beam management.

[0070] As an optional implementation, the above step 301 may specifically include:

[0071] Obtain configuration information, wherein the configuration information includes at least one of the following:

[0072] cycle;

[0073] The number of S-SS / PSBCH blocks; the number of S-SS / PSBCH blocks is the same as or different from the number of S-SS / PSBCH blocks used to transmit direct link synchronization information;

[0074] S-SS / PSBCH block time interval; the S-SS / PSBCH block time interval is the same as or different from the S-SSB time interval used to transmit direct link synchronization information;

[0075] Determine the S-SS / PSBCH block time domain resources according to the configuration information.

[0076] It should be noted that whether it is the first S-SS / PSBCH block time domain resources (reusing the existing S-SS / PSBCH block time domain resources for transmitting direct link synchronization information), the second S-SS / PSBCH block time domain resources (partially reusing the existing S-SS / PSBCH block time domain resources for transmitting direct link synchronization information), or the third S-SS / PSBCH block time domain resources (newly added (newly defined) S-SS / PSBCH block time domain resources for calculating RSRP and / or SINR), they are all determined based on the acquired configuration information.

[0077] It should be noted that in order not to affect the judgment of downlink timing by terminals that do not support beam management, for transceiver terminals that perform beam management, different periods, numbers of S-SS / PSBCH blocks or S-SS / PSBCH block time intervals N_interval can be additionally configured to achieve different understandings of measurement behaviors and realize transceiver beam measurement.

[0078] There are two configuration methods, as follows:

[0079] Configuration 1: Configure the period (the period used for beam management for BM) or the number of S-SS / PSBCH blocks. In this case, the configured period can be further reduced, allowing both the sender and receiver to obtain beam measurement and pairing information more quickly.

[0080] See also Figure 5 In this configuration, the transmitting terminal polls the transmitting beam within a cycle, the receiving terminal fixes the receiving beam within a cycle, and polls the receiving beam during multiple cycles.

[0081] for example Figure 5In the example, a for BM cycle is 80ms. The transmitting terminal transmits an S-SS / PSBCH block at each S-SS / PSBCH block time domain resource location (rectangle in the figure) within the cycle using the corresponding transmit beam (ellipse in the figure). This is called transmit beam polling. The receiving terminal receives the S-SS / PSBCH block using a fixed receive beam (receive beam A) within the cycle, then performs transmit beam measurement and obtains measurement results (RSRP and / or SINR). Then, in the next cycle, the transmitting terminal transmits an S-SS / PSBCH block at each S-SS / PSBCH block time domain resource location (rectangle in the figure) within the cycle using the corresponding transmit beam. The receiving terminal receives the S-SS / PSBCH block using a fixed receive beam (receive beam B) within the cycle, then performs transmit beam measurement and obtains measurement results (RSRP and / or SINR). The two sets of measurement results are then determined to have the better signal quality. The receive beam corresponding to this set and the transmit beam corresponding to the highest measurement value in this set are then used as the optimal transmit / receive beam pair for the transmitting and receiving terminal.

[0082] Configuration 2: Configure the S-SS / PSBCH block time interval. In this case, the transmitting terminal first repeatedly transmits the same beam, causing the receiving terminal to perform receive beam polling; then, the transmitting terminal performs transmit polling of multiple beams, and the receiving terminal performs transmit beam measurement. For details, see Figure 6 .

[0083] The difference between Configuration 2 and Configuration 1 is which of the transmitting and receiving terminals polls the beam first. Beam measurement can be used to determine the optimal transmit and receive beam pair for both terminals.

[0084] It should be noted that configuration one and configuration two can be configured at the same time, which not only shortens the period for beam management but also enables repeated transmission.

[0085] It should be noted that the schemes of the first S-SS / PSBCH block time domain resources and the second S-SS / PSBCH block time domain resources both reuse the existing S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, which means that on the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, there will be terminals that do not support beam management (legacy UE) to obtain downlink timing, and the sequence design of the S-PSS / S-SSS of the S-SS / PSBCH block depends on the synchronization source priority of the terminal sending the S-SS / PSBCH block (also called S-SSB) and the network coverage. At the same time, for terminals that support beam management, the S-SS / PSBCH block is a paired measurement, and the sequence design of the S-PSS / S-SSS needs to reflect the identity of the transmitting and receiving terminals, so as to achieve beam measurement and pairing between the two.

[0086] Therefore, in an optional embodiment, the S-SS / PSBCH block time domain resources include the first S-SS / PSBCH block time domain resources or the second S-SS / PSBCH block time domain resources, and the decodable sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decodable sequence generation of PSBCH is initialized by a first identifier, and the first identifier is determined based on the identity identifier of the terminal.

[0087] The impact of this embodiment on legacy UEs is that when a legacy UE reads an S-SS / PSBCH block sent by a terminal that supports beam management, it cannot correctly acquire synchronization because it cannot parse the PSBCH, and then continues to search for other synchronization sources in the area, thereby avoiding ambiguity.

[0088] In an optional embodiment, the S-SS / PSBCH block time domain resources include a third S-SS / PSBCHblock time domain resource, and the direct link synchronization identifier of the S-SS / PSBCH block is determined based on the identity identifier of the terminal. Compared with the embodiment in which the S-SS / PSBCH block time domain resources include the first S-SS / PSBCH block time domain resources and the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, all S-SS / PSBCH block time domain resources in this embodiment are newly added S-SS / PSBCH block time domain resources for calculating RSRP and / or SINR. Therefore, there is no backward compatibility limitation of the S-SS / PSBCH block design, and the design can be optimized for beam management, that is, the direct link synchronization identifier of the S-SS / PSBCH block can be determined based on the terminal identity identifier, so that the receiving terminal performing beam management can intuitively identify the S-SS / PSBCHblock sent by the transmitting terminal for beam management.

[0089] It should be noted that the second S-SS / PSBCH block time domain resource and the third S-SS / PSBCH block time domain resource schemes both involve newly added (newly defined) S-SS / PSBCH block time domain resources for calculating RSRP and / or SINR. There are two multiplexing methods with the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information. One is frequency division multiplexing (FDM) with the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, and the other is time division multiplexing (TDM) with the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information. From the perspective of terminal capabilities and implementation, TDM is given priority over FDM. Because if FDM is considered, it may happen that the transmitting terminal needs to send both the S-SS / PSBCH block for transmitting direct link synchronization information and the S-SS / PSBCH block for calculating RSRP and / or SINR on the same time domain resource. Their beam directions may be different. Whether such transmission is possible depends on the terminal antenna architecture and capabilities (similar to Uu, different SSB beams are TDM). At this time, it may be necessary to consider the priority relationship between the S-SS / PSBCH block used to transmit direct link synchronization information and the S-SS / PSBCH block used to calculate RSRP and / or SINR. Based on this, the embodiment of the present invention adopts time division multiplexing.

[0090] That is, in an optional embodiment, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, and the fourth S-SS / PSBCH block time domain resources are located in the first resource pool, and the first resource pool and the second resource pool are time-division multiplexed; wherein, the first resource pool is a direct link resource pool dedicated to the first frequency band, and the second resource pool is a direct link communication resource pool.

[0091] This embodiment takes into account the backward compatibility of the terminal in determining the time domain resources of the resource pool. The fourth S-SS / PSBCH block time domain resources, that is, the newly added (newly defined) S-SS / PSBCH block time domain resources for calculating RSRP and / or SINR, are located in the direct link resource pool dedicated to the first frequency band (optionally, the first frequency band is the FR2 frequency band), and are time-division multiplexed with the second resource pool (that is, the resource pool of the legacy UE). This will not affect the terminal that does not support beam management (legacy UE) in determining the resource pool and making resource selection.

[0092] In another optional embodiment, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, and the fourth S-SS / PSBCHblock time domain resources are located in the third resource pool or outside the third resource pool, wherein the third resource pool is a direct link resource pool supporting terminals of the first frequency band.

[0093] This embodiment does not consider the backward compatibility of the terminal in determining the time domain resources of the resource pool, that is, the terminal that does not support beam management (legacy UE) only works in the FR1 frequency band by default. Then the time domain resources used by the fourth S-SS / PSBCH block are located in or outside the direct link resource pool of the terminal that supports the first frequency band (optionally, the first frequency band is the FR2 frequency band).

[0094] In an optional embodiment, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCHblock time domain resources, the lower N1 bit in the time slot index indication of the PSBCH is used to indicate the time slot index of the first S-SS / PSBCH block time domain resources, and the upper N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

[0095] It should be noted that for the second S-SS / PSBCH block time domain resource solution, since the maximum number of S-SS / PSBCH blocks is expanded from 64 to 128 at this time, and the legacy UE can only read 64 of them, considering backward compatibility, this embodiment designs the sending behavior of the sending terminal and the indication method of the 7-bit time slot index in the PSBCH. That is, the sending terminal sends different beams at the S-SS / PSBCH block time domain resource position used to transmit direct link synchronization information, so that the receiving terminal selects the sending beam; and sends a repetition of the same beam at the S-SS / PSBCH block time domain resource position used to calculate RSRP and / or SINR, so that the receiving terminal can perform receiving beam scanning. Since the legacy UE can only see the position of the S-SS / PSBCH block that transmits the direct link synchronization information, the time slot index indication method of this embodiment is adopted, that is, the low N1 bit in the time slot index indication of the PSBCH is used to indicate the time slot index of the first S-SS / PSBCH block time domain resource, and the high N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resource (such as Figure 7 As shown), it can not affect the legacy UE downlink synchronization and acquisition timing; where N1 = log2 (N_S-SS / PSBCH block), N2 = 7-N1.

[0096] like Figure 8 As shown, an embodiment of the present invention further provides a time domain resource determination device, which may include:

[0097] Processing module 801 is used to determine the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, where the S-SS / PSBCH block is used to calculate the reference signal received power RSRP and / or the signal to interference plus noise ratio SINR;

[0098] The S-SS / PSBCH block time domain resource includes one of the following:

[0099] First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information;

[0100] Second S-SS / PSBCH block time domain resources; the second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed;

[0101] The third S-SS / PSBCH block time domain resources include at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR.

[0102] Optionally, the processing module 801 includes:

[0103] An acquiring unit is configured to acquire configuration information, wherein the configuration information includes at least one of the following:

[0104] cycle;

[0105] The number of S-SS / PSBCH blocks; the number of S-SS / PSBCH blocks is the same as or different from the number of S-SS / PSBCH blocks used to transmit direct link synchronization information;

[0106] S-SS / PSBCH block time interval; the S-SS / PSBCH block time interval is the same as or different from the S-SSB time interval used to transmit direct link synchronization information;

[0107] A processing unit is used to determine the S-SS / PSBCH block time domain resources according to the configuration information.

[0108] Optionally, the S-SS / PSBCH block time domain resources include the first S-SS / PSBCH block time domain resources or the second S-SS / PSBCH block time domain resources, and the decodification sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decodification sequence generation of PSBCH is initialized by a first identifier, and the first identifier is determined based on the identity identifier of the terminal.

[0109] Optionally, the S-SS / PSBCH block time domain resources include a third S-SS / PSBCH block time domain resource, and the direct link synchronization identifier of the S-SS / PSBCH block is determined based on the identity identifier of the terminal.

[0110] Optionally, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, and the fourth S-SS / PSBCH block time domain resources are located in the first resource pool, and the first resource pool and the second resource pool are time-division multiplexed;

[0111] The first resource pool is a direct link resource pool dedicated to the first frequency band, and the second resource pool is a direct link communication resource pool.

[0112] Optionally, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, and the fourth S-SS / PSBCH block time domain resources are located in the third resource pool or outside the third resource pool, wherein the third resource pool is a direct link resource pool supporting terminals of the first frequency band.

[0113] Optionally, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, the lower N1 bit in the PSBCH time slot index indication is used to indicate the time slot index of the first S-SS / PSBCH block time domain resources, and the upper N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

[0114] The time domain resource determination device of an embodiment of the present invention, by multiplexing or partially multiplexing the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, or designing a new S-SS / PSBCH block time domain resources for beam management, can realize beam measurement between FR2 transceiver terminals when the S-SS / PSBCH block is used as a measurement reference signal in beam management.

[0115] In order to better achieve the above goals, Figure 9 As shown, an embodiment of the present invention further provides a terminal, including a processor 900 and a transceiver 910. The terminal also includes a user interface 920. The processor 900 is configured to perform the following process:

[0116] Determine the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, where the S-SS / PSBCH block is used to calculate the reference signal received power RSRP and / or the signal to interference plus noise ratio SINR;

[0117] The S-SS / PSBCH block time domain resource includes one of the following:

[0118] First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information;

[0119] Second S-SS / PSBCH block time domain resources; the second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed;

[0120] The third S-SS / PSBCH block time domain resources include at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR.

[0121] Optionally, the processor 900 is further configured to:

[0122] Obtain configuration information, wherein the configuration information includes at least one of the following:

[0123] cycle;

[0124] The number of S-SS / PSBCH blocks; the number of S-SS / PSBCH blocks is the same as or different from the number of S-SS / PSBCH blocks used to transmit direct link synchronization information;

[0125] S-SS / PSBCH block time interval; the S-SS / PSBCH block time interval is the same as or different from the S-SSB time interval used to transmit direct link synchronization information;

[0126] Determine the S-SS / PSBCH block time domain resources according to the configuration information.

[0127] Optionally, the S-SS / PSBCH block time domain resources include the first S-SS / PSBCH block time domain resources or the second S-SS / PSBCH block time domain resources, and the decodification sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decodification sequence generation of PSBCH is initialized by a first identifier, and the first identifier is determined based on the identity identifier of the terminal.

[0128] Optionally, the S-SS / PSBCH block time domain resources include a third S-SS / PSBCH block time domain resource, and the direct link synchronization identifier of the S-SS / PSBCH block is determined based on the identity identifier of the terminal.

[0129] Optionally, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, and the fourth S-SS / PSBCH block time domain resources are located in the first resource pool, and the first resource pool and the second resource pool are time-division multiplexed;

[0130] The first resource pool is a direct link resource pool dedicated to the first frequency band, and the second resource pool is a direct link communication resource pool.

[0131] Optionally, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources or the third S-SS / PSBCH block time domain resources, and the fourth S-SS / PSBCH block time domain resources are located in the third resource pool or outside the third resource pool, wherein the third resource pool is a direct link resource pool supporting terminals of the first frequency band.

[0132] Optionally, the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, the lower N1 bit in the PSBCH time slot index indication is used to indicate the time slot index of the first S-SS / PSBCH block time domain resources, and the upper N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

[0133] The terminal of an embodiment of the present invention, by multiplexing or partially multiplexing the S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, or designing a new S-SS / PSBCH block time domain resources for beam management, can realize beam measurement between FR2 transceiver terminals when the S-SS / PSBCH block is used as a measurement reference signal in beam management.

[0134] An embodiment of the present invention also provides a terminal, including a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the program, the various processes in the embodiment of the time domain resource determination method as described above are implemented, and the same technical effect can be achieved. To avoid repetition, they will not be described here.

[0135] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the program implements the various processes in the above-described embodiment of the time domain resource determination method and achieves the same technical effects. To avoid repetition, the details are not described here. The computer-readable storage medium may be, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0136] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0137] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 means for performing functions specified in one or more processes and / or one or more blocks.

[0138] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable storage medium produce a paper product including an instruction device that implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0139] These computer program instructions can also be loaded onto a computer or other programmable data processing device to cause the computer or other programmable device to execute a series of operating steps to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0140] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A time domain resource determination method, applied to a terminal, characterized in that: include: Determine the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, where the S-SS / PSBCH block is used to calculate the reference signal received power RSRP and / or the signal to interference plus noise ratio SINR; The S-SS / PSBCH block time domain resource includes a second S-SS / PSBCH block time domain resource, and one of the following: First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information; A third S-SS / PSBCH block time domain resource; the third S-SS / PSBCH block time domain resource includes at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; The second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed; When the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, the lower N1 bit in the time slot index indication of the PSBCH is used to indicate the time slot index of the first S-SS / PSBCH block time domain resources, and the upper N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

2. The method according to claim 1, wherein The determining of a time domain resource of a direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block includes: Obtain configuration information, wherein the configuration information includes at least one of the following: cycle; The number of S-SS / PSBCH blocks; the number of S-SS / PSBCH blocks is the same as or different from the number of S-SS / PSBCH blocks used to transmit direct link synchronization information; S-SS / PSBCH block time interval; the S-SS / PSBCH block time interval is the same as or different from the S-SSB time interval used to transmit direct link synchronization information; Determine the S-SS / PSBCH block time domain resources according to the configuration information.

3. The method according to claim 1, wherein In the case where the S-SS / PSBCH block time domain resources also include the first S-SS / PSBCH block time domain resources, the decodification sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decodification sequence generation of PSBCH is initialized by a first identifier, and the first identifier is determined based on the identity identifier of the terminal.

4. The method according to claim 1, wherein In a case where the S-SS / PSBCH block time domain resources also include a third S-SS / PSBCH block time domain resource, the direct link synchronization identifier of the S-SS / PSBCH block is determined based on the identity identifier of the terminal.

5. The method according to claim 1, wherein In a case where the S-SS / PSBCH block time domain resources also include the third S-SS / PSBCH block time domain resources, the fourth S-SS / PSBCH block time domain resources are located in a first resource pool, and the first resource pool is time-division multiplexed with the second resource pool; The first resource pool is a direct link resource pool dedicated to the first frequency band, and the second resource pool is a direct link communication resource pool.

6. The method according to claim 1, wherein In the case where the S-SS / PSBCH block time domain resources also include the third S-SS / PSBCH block time domain resources, the fourth S-SS / PSBCH block time domain resources are located in or outside the third resource pool, wherein the third resource pool is a direct link resource pool supporting terminals of the first frequency band.

7. A time domain resource determination device, characterized in that: include: a processing module, configured to determine a time domain resource of a direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, wherein the S-SS / PSBCH block is used to calculate a reference signal received power RSRP and / or a signal to interference plus noise ratio SINR; The S-SS / PSBCH block time domain resource includes a second S-SS / PSBCH block time domain resource, and one of the following: First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information; A third S-SS / PSBCH block time domain resource; the third S-SS / PSBCH block time domain resource includes at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; The second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed; When the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, the lower N1 bit in the time slot index indication of the PSBCH is used to indicate the time slot index of the first S-SS / PSBCH block time domain resources, and the upper N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

8. A terminal comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, characterized in that: The processor is configured to execute the following process: Determine the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block, where the S-SS / PSBCH block is used to calculate the reference signal received power RSRP and / or the signal to interference plus noise ratio SINR; The S-SS / PSBCH block time domain resource includes a second S-SS / PSBCH block time domain resource, and one of the following: First S-SS / PSBCH block time domain resource; the first S-SS / PSBCH block time domain resource is used to transmit direct link synchronization information; A third S-SS / PSBCH block time domain resource; the third S-SS / PSBCH block time domain resource includes at least one fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; The second S-SS / PSBCH block time domain resources include at least one first S-SS / PSBCH block time domain resource for transmitting direct link synchronization information and a fourth S-SS / PSBCH block time domain resource for calculating RSRP and / or SINR; the first S-SS / PSBCH block time domain resources and the fourth S-SS / PSBCH block time domain resources are time division multiplexed; When the S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, the lower N1 bit in the time slot index indication of the PSBCH is used to indicate the time slot index of the first S-SS / PSBCH block time domain resources, and the upper N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

9. A terminal comprising a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that: When the processor executes the program, the time domain resource determination method according to any one of claims 1 to 6 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the time domain resource determination method according to any one of claims 1 to 6 are implemented.

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