Time domain resource determination method and device, terminal and medium

Abstract

The invention provides a time domain resource determination method and device, a terminal and a medium. The method comprises the following steps: determining an S-SS / PSBCH block time domain resource, wherein the S-SS / PSBCH block is used for calculating RSRP (Reference Signal Receiving Power) and / or SINR (Signal to Interference plus Noise Ratio); wherein the S-SS / PSBCH block time domain resource comprises one of the following: a first S-SS / PSBCH block time domain resource used for transmitting the synchronization information of the direct connection link, and a second S-SS / PSBCH block time domain resource used for transmitting the synchronization information of the direct connection link; the second S-SS / PSBCH block time domain resource at least comprises one first S-SS / PSBCH block time domain resource and a fourth S-SS / PSBCH block time domain resource used for calculating the RSRP (Reference Signal Received Power) and / or the SINR (Signal to Interference Noise Ratio); and the third S-SS / PSBCH block time domain resource at least comprises 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 be oriented to extended commercial use cases, such as augmented reality (AR) / virtual reality (VR), real-time video sharing, etc., to support services with higher data rates (Gbps). In order to support services with higher data rates, enhancements on the FR2 licensed spectrum will be studied, specifically beam management enhancements to support unicast services in the FR2 licensed frequency band, including: initial beam pairing, beam maintenance, beam failure recovery, etc.

[0003] The existing sidelink synchronization signal / physical sidelink broadcast channel block (S-SS / PSBCH block) only supports the synchronization function but not the beam management function. If the S-SS / PSBCH block is used as the measurement reference signal in beam management, what kind of design should be adopted for the S-SS / PSBCH block to realize the beam measurement between FR2 transceiver terminals is an urgent problem to be solved. 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 a time domain resource 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 a reference signal received power RSRP and / or a signal to interference plus noise ratio SINR;

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

[0008] A 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] 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.

[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 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] According to the configuration information, determine the S-SS / PSBCH block time domain resources.

[0017] Among them, 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, the decryption sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decryption 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] Among them, the S-SS / PSBCH block time domain resources include a third S-SS / PSBCH block time domain resources, 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 is time-division multiplexed with the second resource pool;

[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 time slot index indication of PSBCH 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, used to determine the time domain resources of the direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCHblock, wherein 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;

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

[0026] A 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] 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.

[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 method for determining time domain resources as described above is implemented.

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

[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 one 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 new S-SS / PSBCH block time domain resources 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 an 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 a second S-SS / PSBCH block time domain resource 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 showing beam transmission of a transmitting terminal corresponding to configuration 2 of an embodiment of the present invention;

[0039] Figure 7 A schematic diagram showing 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] Fig. 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 more clear, 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) has a period of 160ms. 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 beginning 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 one S-SSB cycle Carried in 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 sidelink primary synchronization signal (S-PSS), the sidelink secondary synchronization signal (S-SSS) and the 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 as shown.

[0046] In the current Uu interface, the terminal and the base station are the two communicating parties, and all terminals need to synchronize to the serving cell to obtain downlink synchronization and cell configuration information. The synchronization mechanism of the sidelink is quite different from that of the Uu interface. The biggest difference is that the purpose of terminal synchronization is mainly to synchronize to a certain synchronization source and then obtain timing and TDD configuration (the terminal must obtain TDD configuration to further determine the resources of the transceiver resource pool). Each terminal will maintain its own set of timing. The two parties in the 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, 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 sending trigger conditions and sending rules of 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 domain 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 function, but not beam management function. If beam management function is to be supported, the following enhancements are required:

[0055] 1. In terms of S-SSB time domain resources, the existing protocol defines three sets of time domain resource configurations (i.e., time domain configurations TimeAllocation1, 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 the 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 to be solved.

[0058] In view of the above technical problems, the present invention provides a method, device, terminal and medium for determining time domain resources. The method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

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

[0060] Step 301, determining a direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCH block time domain resource, 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;

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

[0062] A 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] 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.

[0065] It should be noted that the execution subject of the method of the present invention is a terminal, which supports the beam management function. Among them, 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, that is, the S-SS / PSBCH block of the present invention is used 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 for transmitting direct link synchronization information, and partially newly added (newly defined) S-SS / PSBCH block time domain resources for calculating RSRP and / or SINR, which 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 for transmitting direct link synchronization information, and the newly added maximum of 64 positions are defined as S-SS / PSBCH block time domain resources for calculating 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, so that the beam management can be optimized without any 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 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] According to the configuration information, determine the S-SS / PSBCH block time domain resources.

[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), or 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 (period for beam management for BM) or the number of S-SS / PSBCH blocks. At this time, the configured period can be further reduced, which can facilitate 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 embodiment, a for BM cycle is 80ms. The transmitting terminal transmits S-SS / PSBCHblock with the corresponding transmitting beam (ellipse in the figure) at each S-SS / PSBCHblock time domain resource position (rectangle in the figure) within the cycle, which is called transmit beam polling. The receiving terminal receives S-SS / PSBCH block with a fixed receiving beam (receiving beam A) within the cycle, and then performs transmit beam measurement and obtains measurement results (RSRP and / or SINR); then in the next cycle, the transmitting terminal still transmits S-SS / PSBCH block with the corresponding transmitting beam at each S-SS / PSBCH block time domain resource position (rectangle in the figure) within the cycle, and the receiving terminal receives S-SS / PSBCH block with a fixed receiving beam (receiving beam B) within the cycle, and then performs transmit beam measurement and obtains measurement results (RSRP and / or SINR); then determine the group with better signal quality in the two groups of measurement results, then the receiving beam corresponding to the group and the transmitting beam corresponding to the highest measurement value in the group are used as the optimal transmit and receive beam pair of the transceiver terminal.

[0082] Configuration 2: Configure the S-SS / PSBCH block time interval. At this time, the transmitting terminal first repeatedly transmits the same beam, so that the receiving terminal performs 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 terminal and the receiving terminal polls the beam first. The optimal transmitting and receiving beam pair of the transmitting and receiving terminals can be determined through beam measurement.

[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 also 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 of 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 decryption sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decryption 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 UE is as follows: when the legacy UE reads the S-SS / PSBCH block sent by a terminal that supports beam management, it will not be able to correctly acquire synchronization because it cannot parse the PSBCH, and then continue 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, in this embodiment, all S-SS / PSBCH block time domain resources are newly added S-SS / PSBCH block time domain resources for calculating RSRP and / or SINR, so 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, and 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 for transmitting direct link synchronization information and the S-SS / PSBCH block for calculating 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 determining the time domain resources of the resource pool. The fourth S-SS / PSBCH block time domain resources, i.e., the newly added (newly defined) S-SS / PSBCH block time domain resources for calculating RSRP and / or SINR, are located in a 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 (i.e., 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 performing 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 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 supporting 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 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 resources, and the high 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; the same beam is repeated 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; wherein, 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] A processing module 801 is used to determine a time domain resource of a direct link synchronization signal / physical direct link broadcast channel block S-SS / PSBCHblock, where 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;

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

[0099] A 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] 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.

[0102] Optionally, the processing module 801 includes:

[0103] An acquiring unit is used 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 decryption sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decryption 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 resources, 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, the fourth S-SS / PSBCH block time domain resources are located in the first resource pool, and the first resource pool is time-division multiplexed with the second resource pool;

[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 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 resources, and the high 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 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, Fig. 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 used to perform the following process:

[0116] Determine a time domain resource 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 a reference signal received power RSRP and / or a signal to interference plus noise ratio SINR;

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

[0118] A 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] 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.

[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] According to the configuration information, determine the S-SS / PSBCH block time domain resources.

[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 decryption sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decryption 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 resources, 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, the fourth S-SS / PSBCH block time domain resources are located in the first resource pool, and the first resource pool is time-division multiplexed with the second resource pool;

[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 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 resources, and the high 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 S-SS / PSBCH block time domain resources used to transmit direct link synchronization information, or designing 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 executable on the processor. When the processor executes the program, the various processes in the time domain resource determination method embodiment as described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0135] The embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, each process in the embodiment of the time domain resource determination method described above is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, 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 adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to 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 generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A device that specifies functions 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 work in a specific manner, so that the instructions stored in the computer-readable storage medium produce a paper product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0139] These computer program instructions may also be loaded onto a computer or other programmable data processing device so that the computer or other programmable device executes a series of operating steps to produce a computer-implemented process, thereby providing instructions executed on the computer or other programmable device for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[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 the scope of protection of the present invention.

Claims

1. A method for determining time domain resources, applied to a terminal, characterized in that: include: Determine a time domain resource 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 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 one of the following: A 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; 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 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.

2. The method according to claim 1, characterized in that The determining of the time domain resources of the 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 and the number of S-SS / PSBCH blocks used to transmit direct link synchronization information / The number of PSBCH blocks is the same or different; 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; According to the configuration information, determine the S-SS / PSBCH block time domain resources.

3. The method according to claim 1, characterized in that 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 decryption sequence generation of the demodulation reference signal DMRS for PSBCH is initialized by a first identifier, or the decryption 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, characterized in that: 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.

5. The method according to claim 1, characterized in that 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 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, characterized in that 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.

7. The method according to claim 1, characterized in that The S-SS / PSBCH block time domain resources include the second S-SS / PSBCH block time domain resources, 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 resources, and the high N2 bit is used to indicate the time slot index of the fourth S-SS / PSBCH block time domain resources.

8. A time domain resource determination device, characterized in that: include: A processing module, used to determine the time domain resources 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 one of the following: A 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; 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 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.

9. 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 used to execute the following process: Determine a time domain resource 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 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 one of the following: A 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; 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 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.

10. 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 7 is implemented.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps in the time domain resource determination method according to any one of claims 1 to 7 are implemented.

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