Resource determination method, device, chip, storage medium, and program product

Abstract

The present application provides a resource determination method, a device, a chip, and a storage medium. The method comprises: a communication device determines a time domain position of a first signal and / or a first gap, wherein the time domain position of the first signal and / or the first gap is related to a periodic uplink and downlink configuration, and the uplink and downlink configuration comprises one or more of the following: one or more uplink subframes, one or more downlink subframes, and one or more guard subframes.

Description

A method and apparatus for determining resources, a chip, a storage medium, and a program product. Technical Field

[0001] This application relates to the field of mobile communication technology, specifically to a resource determination method and device, chip, storage medium, and program product. Background Technology

[0002] Narrow Band Internet of Things (NB-IoT) non-terrestrial network (NTN) systems are designed based on a Frequency Division Duplex (FDD) frame structure, meaning all uplink and downlink subframes can be used for signal or channel transmission. However, in NB-IoT NTN Time Division Duplex (TDD) mode, only a portion of the N radio frames are available for data transmission. The scheme for determining the signal or channel transmission and reception positions in the FDD frame structure is not applicable to the TDD frame structure. Summary of the Invention

[0003] This application provides a resource determination method and device, chip, storage medium, and program product.

[0004] The resource determination method provided in this application includes:

[0005] The communication device determines the time-domain location of a first signal and / or a first gap; the time-domain location of the first signal and / or the first gap is related to a periodic uplink / downlink configuration, which includes one or more of the following: one or more uplink subframes, one or more downlink subframes, and one or more guard subframes.

[0006] The communication device provided in this application embodiment includes:

[0007] The determining unit is configured to determine the time-domain position of a first signal and / or a first gap; the time-domain position of the first signal and / or the first gap is related to a periodic uplink / downlink configuration, which includes one or more of the following: one or more uplink subframes, one or more downlink subframes, and one or more guard subframes.

[0008] The communication device provided in this application embodiment can be the terminal device in the above-described scheme. The communication device includes a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory to execute the resource determination method described above.

[0009] The chip provided in this application embodiment is used to implement the resource determination method described above.

[0010] Specifically, the chip includes a processor for retrieving and running a computer program from memory, causing a device equipped with the chip to perform the resource determination method described above.

[0011] The computer-readable storage medium provided in this application embodiment is used to store a computer program that causes a computer to execute the resource determination method described above.

[0012] The computer program product provided in this application includes computer program instructions that cause a computer to execute the resource determination method described above.

[0013] The computer program provided in this application embodiment, when run on a computer, causes the computer to execute the resource determination method described above.

[0014] Through the above technical solution, the communication equipment determines the time domain position of the first signal and / or the first gap based on the periodic uplink and downlink configuration, thereby determining the time domain position of the signal or gap in TDD mode. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0017] Figure 2 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0018] Figure 3 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0019] Figure 4 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0020] Figure 5 is a schematic diagram of an optional periodic uplink / downlink configuration provided in an embodiment of this application;

[0021] Figure 6 is a schematic diagram of the optional time-domain location of the narrowband reference signal (NRS) provided in an embodiment of this application;

[0022] Figure 7 is a schematic diagram of the optional time-domain location of the NRS provided in an embodiment of this application;

[0023] Figure 8 is a schematic diagram of an optional downlink transmission gap provided in an embodiment of this application;

[0024] Figure 9 is a schematic diagram of an optional scheduling gap provided in an embodiment of this application;

[0025] Figure 10 is an optional schematic diagram of timing advance (TA) provided in an embodiment of this application;

[0026] Figure 11 is a schematic diagram of an optional transmission gap provided in an embodiment of this application;

[0027] Figure 12 is a schematic diagram of an optional structure of a communication device provided in an embodiment of this application;

[0028] Figure 13 is a schematic structural diagram of a communication device provided in an embodiment of this application;

[0029] Figure 14 is a schematic structural diagram of a chip according to an embodiment of this application;

[0030] Figure 15 is a schematic block diagram of a communication system provided in an embodiment of this application. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] Communication system scenarios include Terrestrial Networks (TN) and NTN. NTN typically uses satellite communication to provide communication services to terrestrial users. Current NTN systems include NR-NTN and IoT-NTN systems, and other NTN systems may be included in the future.

[0033] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. As shown in Figure 1, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 via an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

[0034] It should be understood that the embodiments of this application are only illustrated by way of example with communication system 100, but the embodiments of this application are not limited thereto. That is to say, the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE TDD, Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems, etc.

[0035] In the communication system 100 shown in Figure 1, network device 120 may be an access network device that communicates with terminal device 110. The access network device can provide communication coverage for a specific geographical area and can communicate with terminal device 110 (e.g., UE) located within that coverage area.

[0036] Terminal device 110 can be any terminal device, including but not limited to terminal devices that are connected to network device 120 or other terminal devices via wired or wireless connections.

[0037] Terminal device 110 can be used for device-to-device (D2D) communication.

[0038] The various functional units in the communication system 100 can also establish connections and communicate with each other through the next generation (NG) interface.

[0039] Figure 1 exemplarily illustrates a base station, a core network device, and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices, and each base station may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0040] NTN uses satellite communication to provide communication services to terrestrial users. Compared to terrestrial cellular communication, satellite communication has many unique advantages. First, satellite communication is not limited by the user's geographical location. For example, conventional terrestrial communication cannot cover areas such as oceans, mountains, and deserts where communication equipment cannot be built or where there is no communication coverage due to sparse population. However, for satellite communication, a single satellite can cover a large area, and since satellites orbit the Earth, theoretically every corner of the Earth can be covered by satellite communication. Second, satellite communication has significant social value. Satellite communication can provide coverage in remote mountainous areas and impoverished countries or regions at a relatively low cost, enabling people in these areas to enjoy advanced voice communication and mobile internet technologies, helping to narrow the digital divide with developed regions and promoting development in these areas. Third, satellite communication has a long range, and the cost of communication does not increase significantly with the increase in communication distance. Finally, satellite communication has high stability and is not affected by natural disasters.

[0041] NTN technology can be combined with various communication systems. For example, NTN technology can be combined with NR systems to form an NR-NTN system. As another example, NTN technology can be combined with Internet of Things (IoT) systems to form an IoT-NTN system. As further examples, an IoT-NTN system can include NB-IoT-NTN systems and eMTC-NTN systems.

[0042] Figure 2 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application.

[0043] As shown in Figure 2, the system includes a terminal device 201 and a satellite 202, which can communicate wirelessly. The network formed between the terminal device 201 and the satellite 202 can also be called an NTN. In the architecture of the communication system shown in Figure 2, the satellite 202 can function as a base station, and the terminal device 201 and the satellite 202 can communicate directly. In this system architecture, the satellite 202 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 1102, and the coverage area of ​​each network device 1102 may include other numbers of terminal devices; this application does not limit this aspect.

[0044] Figure 3 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application.

[0045] As shown in Figure 3, the system includes a terminal device 201, a satellite 202, and a base station 203. Wireless communication is possible between the terminal device 201 and the satellite 202, and communication is possible between the satellite 202 and the base station 203. The network formed by the terminal device 201, satellite 202, and base station 203 can also be called an NTN. In the architecture of the communication system shown in Figure 3, the satellite 202 may not have the function of a base station; communication between the terminal device 201 and the base station 203 requires relaying through the satellite 202. In this system architecture, the base station 203 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple base stations 203, and the coverage area of ​​each base station 203 may include other numbers of terminal devices; this application does not limit this. The base station 203 may be the network device 120 in Figure 1.

[0046] It should be understood that the aforementioned satellite 202 includes, but is not limited to: Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, Highly Elliptical Orbit (HEO) satellites, etc. Satellites can employ multi-beam coverage to cover the ground; for example, a single satellite can generate dozens or even hundreds of beams to cover the ground. In other words, a single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers, ensuring satellite coverage and increasing the overall system capacity of the satellite communication system.

[0047] To ensure satellite coverage and improve the overall capacity of the satellite communication system, satellites use multi-beam coverage to cover the ground. A single satellite can generate dozens or even hundreds of beams to cover the ground; a single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

[0048] It should be noted that Figures 1 to 3 are merely illustrative examples illustrating the system to which this application applies. Of course, the methods shown in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. It should also be understood that "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a related relationship. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, B can be obtained through C; or it can mean that there is a related relationship between A and B. It should also be understood that "correspondence" mentioned in the embodiments of this application can indicate a direct or indirect correspondence between two things, or an related relationship between two things, or a relationship of instruction and being instructed, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to standard protocols in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems, and this application does not limit this.

[0049] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0050] NRS

[0051] Before receiving the deployment scenario configuration parameters (operationModeInfo): The terminal device assumes that NRS is transmitted in subframes 0, 4 and subframe 9, which does not contain the Narrowband Secondary Synchronization Signal (NSSS).

[0052] For the high-level parameter operationModeInfo, which indicates that the deployment scenario is a standalone Narrow Band Internet of Things (NB-IoT) carrier:

[0053] Before receiving the SIB1-NB, the terminal device assumes that the NRS is transmitted in subframes 0, 1, 3, 4 and subframe 9, which does not contain the NSSS;

[0054] After receiving the SIB1-NB, the terminal device assumes that the NRS is transmitted in subframes 0, 1, 3, 4, subframe 9 which does not contain NSSS, and the NB-IoT downlink subframe.

[0055] For NB-IoT carriers that have downlink non-anchored carrier common configuration parameters (DL-CarrierConfigCommon-NB) but no inband carrier configuration parameters (inbandCarrierInfo):

[0056] If the higher-layer configuration allows the terminal device to decode a narrowband physical downlink control channel (NPDCCH) scrambled with a paging-radio network temporary identifier (P-RNTI) and cyclic redundancy check (CRC), and the higher-layer configuration indicates that an NRS (nrs-NonAnchorConfig) is enabled on the non-anchored paging carrier, then the terminal device first determines the starting subframe of the NPDCCH search space associated with the NRS:

[0057] If the higher layer parameter nB is configured as fourT (a paging frame (PF) includes four paging opportunities (PO)), the terminal device assumes that the NRS is transmitted in the 10th downlink subframe before the start subframe of the NPDCCH search space;

[0058] If the higher layer parameter nB is configured as twoT (one PF includes two POs), the terminal device assumes that the NRS is transmitted in the 9th and 10th downlink subframes before the start subframe of the NPDCCH search space;

[0059] If the higher layer parameter nB is configured as oneT (one PF includes one PO), the terminal device assumes that the NRS is transmitted in the 6th, 7th, 8th, 9th and 10th downlink subframes before the start subframe of the NPDCCH search space;

[0060] For other nB values, the terminal device assumes that the NRS is transmitted in the first 10 downlink subframes of the starting subframe in the NPDCCH search space.

[0061] If the higher-layer configuration of the terminal device decodes the NPDCCH using P-RNTI scrambled CRC, the terminal device assumes that the NRS is transmitted in the candidate NPDCCH where the DCI using P-RNTI scrambled CRC is located. Furthermore, the terminal device assumes that the NRS is transmitted in the first 10 and last 4 downlink subframes of the candidate NPDCCH where the DCI using P-RNTI scrambled CRC is located, with downlink subframes without NRS not counted. If the DCI using P-RNTI scrambled CRC schedules the Narrowband Physical Downlink Shared Channel (NPDSCH), the terminal device assumes that the NRS is transmitted in the downlink subframe carrying the NPDSCH, and in the 4 downlink subframes before and after the scheduled NPDSCH, with downlink subframes without NRS not counted.

[0062] In the window where a terminal device in a higher-layer configuration attempts to decode an NPDCCH with a CRC scrambled using Random Access-Radio Network Temporary Identifier (RA-RNTI), the terminal device assumes that the NRS is transmitted in the Type 2 Common Search Space (CSS) of the higher-layer configuration, in the first 10 and last 4 downlink subframes of each Type 2 CSS, where downlink subframes without the NRS are not counted. If a DCI with a CRC scrambled using RA-RNTI is detected, the terminal device assumes that the NRS is transmitted in the NPDSCH scheduled with the DCI with a CRC scrambled using RA-RNTI, and in the 4 downlink subframes before and after that scheduled NPDSCH, where downlink subframes without the NRS are not counted. Furthermore, when the terminal device attempts to decode a DCI with a CRC scrambled using RA-RNTI and receives an NPDSCH scheduled with the DCI with a CRC scrambled using RA-RNTI, the terminal device assumes that the NRS is transmitted in subframes 0, 1, 3, 4, and 9.

[0063] During random access, if the higher-layer configuration allows the terminal equipment to decode NPDCCH scrambled with CRC using Temporary Cell-Radio Network Temporary Identifier (TC-RNTI) and / or Cell-Radio Network Temporary Identifier (C-RNTI), before detecting DCI scrambled with TC-RNTI and / or C-RNTI, the terminal equipment assumes that NRS is transmitted in the Type 2 CSS configured by the higher layer, and in the 10 downlink subframes before the start and 4 downlink subframes after the end of each Type 2 CSS, until the contention resolution timer expires. Downlink subframes without NRS are not counted. If DCI scrambled with CRC using TC-RNTI or C-RNTI is detected, the terminal equipment assumes that NRS is transmitted in the NPDSCH scheduled using the DCI scrambled with TC-RNTI or C-RNTI, and in the 4 downlink subframes before and after the scheduled NPDSCH. Downlink subframes without NRS are not counted.

[0064] The terminal device assumes that the NRS is transmitted in the first 10 and last 4 line subframes of the Type 1A NPDCCH common search space set, the Type 2A NPDCCH common search space set, and the Type 1A and Type 2A NPDCCH common search space sets. The terminal device assumes that the NRS is transmitted in the downlink subframe containing the NPDSCH scheduled by DCI using Group-Radio Network Temporary Identifier (G-RNTI) or Single Cell-Radio Network Temporary Identifier (SC-RNTI) scrambled CRC, and in the four downlink subframes before and after the scheduled NPDSCH. Downlink subframes without NRS are not counted.

[0065] In other cases, the terminal device assumes that NRS is transmitted in subframes 0, 1, 3, 4, 9 and NB-IoT downlink subframes, and does not expect NRS to be transmitted in other downlink subframes.

[0066] For NB-IoT subcarriers that have downlink carrier configuration parameters (DL-CarrierConfigDedicated-NB) but no higher-layer in-band carrier configuration parameters (inbandCarrierInfo):

[0067] The terminal device assumes that NRS is transmitted in subframes 0, 1, 3, 4, 9 and NB-IoT downlink subframes, and does not expect NRS to be transmitted in other downlink subframes.

[0068] In related technologies, the NB-IoT NTN system is designed based on the FDD frame structure, meaning that all uplink and downlink subframes can be used for signal or channel transmission. However, in the NB-IoT NTN TDD mode, only D downlink subframes and U uplink subframes out of every N radio frames are available for data transmission. Therefore, how the terminal device can determine the time-domain location of the transmitted and received signals or channels based on the NB-IoT NTN TDD frame structure is a problem that urgently needs to be solved.

[0069] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0070] This application provides a resource determination method applied to a communication device, as shown in Figure 4, including:

[0071] S401, The communication device determines the time-domain position of the first signal and / or the first gap; the time-domain position of the first signal and / or the first gap is related to a periodic uplink / downlink configuration, which includes one or more of the following: one or more uplink subframes, one or more downlink subframes, and one or more guard subframes.

[0072] The communication equipment determines the time-domain location of the first signal and / or the first gap based on the periodic uplink and downlink configuration.

[0073] The communication equipment can be a terminal device or a network device. The wireless communication system in which the communication equipment is located can be a TN system, an NTN system, an Internet of Things system, etc. In this embodiment, the wireless system in which the communication equipment is located is not limited.

[0074] The communication equipment can communicate using narrowband (NB) or non-narrowband technology.

[0075] In this embodiment, the periodic uplink / downlink configuration includes one or more of the following: D downlink subframes, U uplink subframes, and a guard interval. Wherein, D is greater than or equal to 1, and U is greater than or equal to 1. The guard interval includes one or more guard subframes. It is understood that subframes other than uplink and downlink subframes in the uplink / downlink configuration are guard subframes.

[0076] Optionally, D downlink subframes or U uplink subframes may be consecutive.

[0077] The periodic uplink and downlink configuration has a period of N frames. N is greater than or equal to 1.

[0078] In one example, as shown in Figure 5, the period of the periodic uplink / downlink configuration is N = 9 radio frames (i.e., 90 subframes = 90ms), and within each 90ms period, subframe 8 of the first frame to subframe 5 of the second frame are used for uplink / downlink transmission (i.e., U / D = 8, consecutive uplink / downlink subframes are used for data transmission), and the remaining subframes are guard subframes.

[0079] In this embodiment of the application, the periodic uplink and downlink configuration can be understood as including uplink and downlink configurations of multiple periods, that is, including radio frames of multiple periods. The uplink and downlink configuration can be understood as one period of the periodic uplink and downlink configuration, that is, including radio frames of one period.

[0080] In this embodiment, periodic uplink and downlink configurations are used to implement the TDD mode of the communication device.

[0081] The communication device can determine the time-domain location of the first signal and / or the first gap based on the periodic uplink and downlink configuration.

[0082] After determining the time domain location of the first signal, the communication device transmits or receives the first signal at that time domain location.

[0083] After determining the time domain location of the first gap, the communication device inserts the first gap at that time domain location or obtains the inserted first gap at that time domain location.

[0084] In this embodiment of the application, the communication device determines the time domain position of the first signal and / or the first gap based on the periodic uplink and downlink configuration, thereby determining the time domain position of the signal or gap in TDD mode.

[0085] In some embodiments, the first signal includes NRS.

[0086] When the communication device is a network device, the network device transmits the NRS at the determined time domain location.

[0087] When the communication device is a terminal device, the terminal device receives the NRS at a determined time-domain location.

[0088] In some embodiments, the time-domain location of the NRS is located in one or more downlink subframes included in the uplink / downlink configuration.

[0089] After the communication equipment applies the periodic uplink and downlink configuration, NRS transmission needs to take the periodic uplink and downlink configuration into account, wherein only D downlink subframes in the uplink and downlink configuration can be used for NRS transmission.

[0090] In this embodiment, the time-domain location of the NRS is related to a predefined subframe index or downlink channel.

[0091] In scenarios where the temporal location of the NRS is related to a predefined subframe index

[0092] In some embodiments, the temporal location of the NRS is determined based on the uplink / downlink configuration and a predefined subframe index.

[0093] One or more predefined subframe indices, corresponding to one or more subframes.

[0094] The time-domain location of NRS is the subframe that overlaps with the downlink subframes included in the uplink and downlink configurations and the subframes corresponding to the predefined subframe indices.

[0095] Taking a communication device as the terminal device as an example, in one or more of the following cases, the time-domain location of the NRS is determined based on the uplink / downlink configuration and a predefined subframe index:

[0096] Before the terminal device obtains the deployment scenario configuration;

[0097] The terminal device is configured to deploy independently.

[0098] A carrier that does not have an in-band carrier configuration.

[0099] Taking the communication equipment as a network device as an example, in one or more of the following cases, the time-domain location of the NRS is determined based on the uplink / downlink configuration and a predefined subframe index:

[0100] The deployment scenario for the sent application is configured as an independent deployment;

[0101] A carrier that does not have an in-band carrier configuration.

[0102] In this embodiment of the application, the deployment scenario can be configured based on deployment scenario configuration parameters (e.g., the high-level parameter operationModeInfo).

[0103] In one example, the predefined subframe index includes one or more of the following:

[0104] 0, 4 and subframe 9 which does not contain the narrowband secondary synchronization signal NSSS;

[0105] 0, 1, 3, 4;

[0106] Subframes 0, 1, 3, 4, and 9 (which does not contain NSSS);

[0107] 0, 1, 3, 4, subframe 9 (excluding NSSS), and NB-IoT downlink subframe;

[0108] 0, 1, 3, 4, 9, and NB-IoT downlink subframes.

[0109] Taking terminal devices as an example:

[0110] In one example, before the terminal device obtains the deployment scenario configuration, the one or more predefined subframe indices include: 0, 4 and subframe 9 which does not contain the narrowband secondary synchronization signal NSSS.

[0111] In one example, the deployment scenario obtained by the terminal device is configured as an independent deployment. Before the terminal device receives the system message, the predefined subframe indices include: 0, 1, 3, 4 and subframe 9 which does not contain NSSS.

[0112] In one example, the deployment scenario obtained by the terminal device is configured as independent deployment. After the terminal device receives the system message, the predefined subframe index includes: 0, 1, 3, 4 and subframe 9 which does not contain NSSS, as well as NB-IoT downlink subframe.

[0113] In one example, carriers without in-band carrier configurations have predefined subframe indices including: 0, 1, 3, 4, 9, and NB-IoT downlink subframes.

[0114] Take network equipment as an example:

[0115] In one example, the deployment scenario sent by the network device is configured as an independent deployment, and before sending the system message, the predefined subframe indices include: 0, 1, 3, 4 and subframe 9 which does not contain NSSS.

[0116] In one example, the deployment scenario sent by the network device is configured as independent deployment, and after sending the system message, the predefined subframe indices include: 0, 1, 3, 4 and subframe 9 which does not contain NSSS, as well as NB-IoT downlink subframes.

[0117] In one example, carriers without in-band carrier configurations have predefined subframe indices including 0, 1, 3, 4, and 9, as well as NB-IoT downlink subframes.

[0118] Understandably, network devices can continuously configure the deployment scenario for transmission, and terminal devices can determine the predefined subframe index based on the reception status of the deployment scenario configuration.

[0119] In this embodiment of the application, system messages may include System Information Block (SIB) 1, SIB 2, etc.

[0120] In some embodiments, the time-domain location of the NRS is located in one or more target subframes, the target subframes being included in one or more subframes corresponding to the predefined subframe index, and the target subframes being included in one or more downlink subframes included in the uplink / downlink configuration.

[0121] Understandably, the communication device assumes that the NRS is located on one or more target subframes, which include D downlink subframes in a periodic uplink / downlink configuration that overlap with one or more subframes corresponding to a predefined subframe index.

[0122] Network devices transmit NRS only in specific subframes that correspond to a predefined index that overlaps with D downlink subframes in a periodic uplink / downlink configuration.

[0123] The terminal device receives NRS only in a specific subframe that corresponds to a predefined index that overlaps with D downlink subframes in the periodic uplink / downlink configuration.

[0124] In one example, the NRS is transmitted in subframes 0 and 4, which overlap with D downlink subframes in the periodic uplink / downlink configuration, and in subframe 9, which does not contain the Narrowband Secondary Synchronization Signal (NSSS). Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, the terminal device assumes that the NRS is received in subframe 9 of frame 0 and subframes 0 and 4 of frame 1, thereby avoiding receiving the NRS in invalid resource locations.

[0125] In one example, the NRS is transmitted in subframes 0, 1, 3, and 4 that overlap with D downlink subframes in a periodic uplink / downlink configuration, and in subframe 9, which does not contain an NSSS. Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, the communication device determines whether the NRS is transmitted or received in subframe 9 of frame 0 and subframes 0, 1, 3, and 4 of frame 1.

[0126] In one example, NRS is transmitted in subframes 0, 1, 3, and 4 that overlap with D downlink subframes in a periodic uplink / downlink configuration, subframe 9 which does not contain NSSS, and the NB-IoT downlink subframe. Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, the communication device determines whether to transmit or receive in subframes 8 in frame 0 to 5 in frame 1.

[0127] In one example, NRS is transmitted in subframes 0, 1, 3, 4, and 9 that overlap with D downlink subframes in a periodic uplink / downlink configuration. Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, the communication device determines whether NRS is transmitted or received in subframe 9 of frames 0 and 9, and in subframes 0, 1, 3, and 4 of frames 1 and 10.

[0128] In scenarios where the time-domain location of the NRS is related to the downlink channel

[0129] Optionally, the downlink channel may include one or more of the following: NPDCCH and NPDSCH.

[0130] In some embodiments, the time-domain location of the NRS is determined based on the uplink / downlink configuration and one of the following:

[0131] NPDCCH search space;

[0132] The downlink subframe where NPDSCH is located.

[0133] In some embodiments, the temporal location of the NRS is located in one or more target subframes, the target subframes being included in one or more downlink subframes included in the uplink / downlink configuration, the target subframes being associated with one of the following: the NPDCCH search space and the downlink subframe in which the NPDSCH is located.

[0134] In this embodiment of the application, for a carrier that does not have an in-band carrier configuration, the subframe where the NRS is located is determined based on D downlink subframes in the uplink and downlink configuration and at least one of the following: NPDCCH search space, downlink subframe where NPDSCH is located.

[0135] In some embodiments, the one or more target subframes include one of the following:

[0136] A first number of downlink subframes starting from a first subframe, the first subframe being located before the starting subframe of the NPDCCH search space, and a second number of downlink subframes being spaced between the first subframe and the starting subframe of the NPDCCH search space, the first number and / or the second number of downlink subframes being included in one or more downlink subframes included in the uplink / downlink configuration;

[0137] The uplink / downlink configuration includes one or more downlink subframes in which the starting subframe of the NPDCCH search space is located.

[0138] Here, the first number of downlink subframes starting from the first subframe can be described as the Xth subframe before the starting subframe of the NPDCCH search space. Paging A series of Y-shaped segments starting from each downlink subframe Paging Downlink subframes. The first subframe can be understood as the Xth subframe before the starting subframe of the NPDCCH search space. Paging One downlink subframe, Y Paging X is the first quantity. Paging -1 represents the second quantity.

[0139] In one example, if the higher layer instructs the NRS to be independent of the NPDCCH using P-RNTI scrambling CRC, then the NRS is X frames prior to the start subframe of the NPDCCH search space. Paging A series of Y-shaped segments starting from each downlink subframe Paging Transmitted on downlink subframes, wherein the downlink subframes are based on D downlink subframe counts of the periodic uplink / downlink configuration.

[0140] In some embodiments, the X Paging Includes one or more of the following: 10, the Y Paging Includes one or more of the following: 1, 2, 5, 10.

[0141] In some embodiments, where each PF includes 4 POs, X Paging Y is 10 Paging X is 1; in the case where each PF includes 2 POs, X Paging Y is 10 Paging X is 2; when each PF includes 1 PO and the PF is in consecutive radio frames, X Paging Y is 10 Paging X is 5; in cases where each PF includes a number of POs related to the size of the paging cycle and the PF is not located in consecutive radio frames, X Paging Y is 10 Paging It is 10.

[0142] In this embodiment of the application, the number of POs included in the PF and the number of frames in the PF interval can be configured by the higher layer parameter nB.

[0143] Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, as shown in Figure 6, if the starting subframe of the NPDCCH search space using P-RNTI scrambled CRC is subframe 0 in frame 10, then:

[0144] For the higher-level parameter nB configuration, each PF contains 4 POs, and NRS is in the Xth position before subframe 0 of frame 10. Paging = Transmitted in 10 downlink subframes (i.e., subframe 8 of frame 0), at this time, Y Paging =1;

[0145] For the higher-level parameter nB configuration, each PF contains 2 POs, and NRS is in the Xth position before subframe 0 of frame 10. Paging =Continuous Y starting from 10 downlink subframes Paging = Transmitted in 2 downlink subframes (i.e., subframes 8 and 9 of frame 0);

[0146] For the higher-layer parameter nB configuration, each PF contains one PO and the PF is located in consecutive radio frames (e.g., T, where T is the paging period). The NRS is in the Xth subframe before subframe 0 of frame 10. Paging =Continuous Y starting from 10 downlink subframes Paging = Transmitted in 5 downlink subframes (i.e., subframe 8 of frame 0 to subframe 2 of frame 1);

[0147] For higher-layer parameter nB configured to other values ​​(such as T / 2, T / 4, T / 16, T / 32…, where T is the paging period), NRS will be activated before subframe 0 of frame 10. Paging= Transmitted in 10 downlink subframes (i.e., subframe 8 of frame 0 to subframe 5 of frame 1, and subframes 8 to 9 of frame 9), at this time, X Paging =10.

[0148] Here, the uplink and downlink configuration in which the starting subframe of the NPDCCH search space is located includes one or more downlink subframes, which can be understood as the uplink and downlink configuration in which the first uplink and downlink configuration includes one or more downlink subframes. The first uplink and downlink configuration is the uplink and downlink configuration in which the starting subframe of the NPDCCH search space is located.

[0149] In this embodiment of the application, if the higher layer instructs the NRS to be independent of the NPDCCH using P-RNTI scrambling CRC, the NRS is transmitted in D downlink subframes of the first uplink / downlink configuration where the starting subframe of the NPDCCH search space is located.

[0150] Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, as shown in Figure 6, the starting subframe of the NPDCCH search space using P-RNTI scrambled CRC is subframe 0 in frame 10. At this time, the D downlink subframes of the uplink / downlink configuration where subframe 0 in frame 10 is located include subframe 8 of frame 9 to subframe 5 of frame 10. Therefore, NRS is transmitted in subframe 8 of frame 9 to subframe 5 of frame 10.

[0151] In some embodiments, the one or more target subframes include one of the following:

[0152] The downlink subframe in which the NPDCCH search space is located, the third number of downlink subframes before the NPDCCH search space, and the fourth number of downlink subframes after the NPDCCH search space;

[0153] The uplink and downlink configuration in which the NPDCCH search space is located includes one or more downlink subframes.

[0154] Here, the downlink subframe containing the NPDCCH search space, the third number of downlink subframes preceding the NPDCCH search space, and the fourth number of downlink subframes following the NPDCCH search space can be described as: the downlink subframe containing the NPDCCH search space, and the X number of downlink subframes preceding the NPDCCH search space. NPDCCH One and after Y NPDCCH There are D downlink subframes, and the downlink subframe count is based on the periodic uplink / downlink configuration. Where X... NPDCCH As the third quantity, Y NPDCCH It is the fourth quantity.

[0155] Here, the NPDCCH search space can be replaced by candidate NPDCCHs for receiving DCI.

[0156] In this embodiment, if the terminal device is instructed to decode the first NPDCCH, the terminal device assumes that the NRS is in the downlink subframe where the NPDCCH search space is located, and the NRS is X frames prior to the NPDCCH search space. NPDCCH One and after Y NPDCCH Transmitted in each downlink subframe, the terminal device in the downlink subframe containing the NPDCCH search space, and the X frames preceding the NPDCCH search space. NPDCCH One and after Y NPDCCH NRS is received in D downlink subframes. The downlink subframe count is based on the uplink / downlink configuration of D downlink subframes.

[0157] In this embodiment of the application, if the network device sends the first NPDCCH, the network device determines the downlink subframe in which the NRS is located in the NPDCCH search space, and the X frames preceding the NPDCCH search space. NPDCCH One and after Y NPDCCH Transmitted in each downlink subframe, the network device in the downlink subframe containing the NPDCCH search space, and the X frames preceding the NPDCCH search space. NPDCCH One and after Y NPDCCH NRS is transmitted in D downlink subframes. The downlink subframes are counted based on the uplink / downlink configuration of D downlink subframes.

[0158] Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, as shown in Figure 6, the NPDCCH search space used for receiving DCI candidate NPDCCH is located in subframe 0 of frame 10. Then, the NRS is located in subframe 0 of frame 10 and before subframe 0 of frame 10. NPDCCH = 10 downlink subframes (i.e., subframe 8 of frame 0 to subframe 5 of frame 1, and subframes 8 to 9 of frame 9) and subsequent Y NPDCCH = Transmitted in 4 downlink subframes (subframes 1 to 4 of frame 10).

[0159] Here, the uplink / downlink configuration in which the NPDCCH search space is located includes one or more downlink subframes, which can be understood as: the uplink / downlink configuration in which the second uplink / downlink configuration includes one or more downlink subframes, and the second uplink / downlink configuration is the uplink / downlink configuration in which the NPDCCH search space is located.

[0160] In this embodiment of the application, if the terminal device is instructed to decode the first NPDCCH, the terminal device assumes that the NRS is transmitted in the D downlink subframes of the uplink and downlink configuration where the NPDCCH search space is located, and then receives the NRS in the D downlink subframes of the uplink and downlink configuration where the NPDCCH search space is located.

[0161] In this embodiment of the application, if the network device sends a first NPDCCH, and the network device determines that the NRS is sent in the D downlink subframes of the uplink and downlink configuration where the NPDCCH search space is located, then the NRS is sent in the D downlink subframes of the uplink and downlink configuration where the NPDCCH search space is located.

[0162] Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, as shown in Figure 6, the NPDCCH search space or the candidate NPDCCH for receiving DCI is located in subframe 0 of frame 10. The D downlink subframes of the uplink / downlink configuration in subframe 0 of frame 10 include subframe 8 of frame 9 to subframe 5 of frame 10. Therefore, NRS is transmitted in subframe 8 of frame 9 to subframe 5 of frame 10.

[0163] In some embodiments, the one or more target subframes include one of the following:

[0164] The downlink subframe in which the NPDSCH is located, the fifth number of downlink subframes before the NPDSCH, and the sixth number of downlink subframes after the NPDSCH;

[0165] The uplink / downlink configuration in which the NPDSCH is located includes one or more downlink subframes.

[0166] Here, the downlink subframe where the NPDSCH is located, the fifth number of downlink subframes before the NPDSCH, and the sixth number of downlink subframes after the NPDSCH can be described as: the downlink subframe where the NPDSCH is located, and the X number of downlink subframes before the NPDSCH. NPDSCH One and after Y NPDSCH Transmitted in D downlink subframes, where each downlink subframe is counted based on a periodic uplink / downlink configuration. Where X... NPDSCH Y is the fifth quantity. NPDSCH It is the sixth quantity.

[0167] In this embodiment of the application, if the terminal device receives the NPDSCH scheduled by the first NPDCCH, the terminal device assumes that the NRS is in the downlink subframe where the NPDSCH is located, and X before the NPDSCH. NPDSCH One and after Y NPDSCH Transmitted in each downlink subframe, in the downlink subframe containing the NPDSCH, and in the X subframe preceding the NPDSCH. NPDSCH One and after Y NPDSCH NRS is received on each downlink subframe. The downlink subframe count is based on D downlink subframes configured for periodic uplink / downlink.

[0168] In this embodiment of the application, if the network device sends an NPDSCH scheduled by the first NPDCCH, the network device determines the NRS in the downlink subframe where the NPDSCH is located, and the X-frame before the NPDSCH. NPDSCH One and after YNPDSCH Transmitted in D downlink subframes. The downlink subframe count is based on the periodic uplink / downlink configuration.

[0169] Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, as shown in Figure 7, if the NPDCCH schedules the NPDSCH to be transmitted in subframe 0 of frame 10, then the NRS will be transmitted in subframe 0 of frame 10, and before subframe 0 of frame 10 (X...). NPDSCH = 4 downlink subframes (i.e., subframes 4 to 5 of frame 1, and subframes 8 to 9 of frame 9) and the following Y NPDSCH = Transmitted in 4 downlink subframes (subframes 1 to 4 of frame 10).

[0170] Here, the one or more downlink subframes included in the uplink / downlink configuration where the NPDSCH is located can be understood as: the one or more downlink subframes included in the third uplink / downlink configuration, where the third uplink / downlink configuration is the uplink / downlink configuration where the NPDSCH is located.

[0171] In this embodiment of the application, if the terminal device receives the NPDSCH scheduled by the first NPDCCH, the terminal device assumes that the NRS is transmitted in the D downlink subframes of the uplink and downlink configuration where the NPDSCH is located, and the terminal device receives the NRS in the D downlink subframes of the uplink and downlink configuration where the NPDSCH is located.

[0172] In this embodiment of the application, if the network device sends the NPDSCH scheduled by the first NPDCCH, and the network device determines that the NRS is sent in the D downlink subframes of the periodic uplink and downlink configuration where the NPDSCH is located, then the network device sends the NRS in the D downlink subframes of the uplink and downlink configuration where the NPDSCH is located.

[0173] Taking the periodic uplink / downlink configuration shown in Figure 5 as an example, as shown in Figure 7, the first NPDCCH schedules the NPDSCH to be transmitted in subframe 0 of frame 10. At this time, the D downlink subframes of the uplink / downlink configuration in subframe 0 of frame 10 include subframe 8 of frame 9 to subframe 5 of frame 10. Therefore, NRS is transmitted in subframe 8 of frame 9 to subframe 5 of frame 10.

[0174] In some embodiments, the first NPDCCH includes one or more of the following:

[0175] P-RNTI scrambled CRC NPDCCH;

[0176] NPDCCH with RA-RNTI scrambled CRC;

[0177] NPDCCH with TC-RNTI and / or C-RNTI scrambled CRC;

[0178] NPDCCH with G-RNTI and / or SC-RNTI scrambled CRC.

[0179] In the method provided in this application embodiment, under TDD mode, the time domain location of NRS is determined based on uplink and downlink configuration, and the network device transmits NRS at the determined time domain location; the terminal device receives NRS at the determined time domain location, thus avoiding transmitting or receiving NRS on invalid time domain resources.

[0180] In some embodiments, the temporal location of the first gap is located in one or more downlink subframes or one or more uplink subframes included in the uplink / downlink configuration.

[0181] Understandably, the temporal location of the first gap is based on the downlink or uplink subframe count included in the first configuration.

[0182] In some embodiments, the first gap includes one or more of the following:

[0183] Gap 1 is a first transmission gap used to postpone the transmission of NPDCCH and / or NPDSCH.

[0184] Gap 2 is the first scheduling gap between multiple transport blocks (TBs) carried by the NPDSCH.

[0185] Gap 3, the first synchronization gap used for downlink synchronization;

[0186] Gap 4 is the second transmission gap used for uplink timing advance TA adjustment.

[0187] Gap 1 can be understood as the downlink transmission gap.

[0188] Network devices may postpone the transmission of downlink channels based on the first transmission gap, and terminal devices may postpone the reception of downlink channels based on the first transmission gap.

[0189] Gap 2 can be understood as the scheduling gap between multiple TBs in the downlink channel.

[0190] After completing the transmission of one TB, the network device inserts a first scheduling gap, and then transmits the next TB after the first scheduling gap. After completing the reception of one TB, the terminal device begins receiving the next TB after the first scheduling gap.

[0191] Gap 3 can be understood as a gap inserted for downlink synchronization during the uplink transmission process, after a period of uplink transmission.

[0192] After transmitting uplink data for a period of time, the terminal device inserts a first synchronization gap, and then continues transmitting uplink data after the first synchronization gap. During this first synchronization gap, the terminal device performs downlink synchronization.

[0193] After receiving uplink transmissions for a period of time, the network device inserts a first synchronization gap and continues to receive uplink transmissions after the first synchronization gap.

[0194] Gap 4 can be understood as a transmission gap inserted by the terminal equipment for TA adjustment.

[0195] After sending a segment of the uplink transmission, the terminal device inserts a second transmission gap, during which the TA is adjusted.

[0196] In some embodiments, the first gap includes a first transmission gap;

[0197] The time-domain location of the first transmission gap is determined based on the uplink / downlink configuration and the third transmission gap, which is a predefined or configured transmission gap used to postpone the transmission of NPDCCH and / or NPDSCH.

[0198] If a third transmission gap is predefined or configured by a higher layer, the communication device determines the first downlink transmission gap based on the periodic uplink and downlink configuration.

[0199] The third transmission gap can be understood as a predefined or configured downlink transmission gap, while the first transmission gap can be understood as the actual downlink transmission gap used.

[0200] In some embodiments, the time-domain location of the first transmission gap includes:

[0201] The starting position and / or duration of the first transmission gap.

[0202] In some embodiments, the starting position of the first transmission gap includes:

[0203] Starting position 1, the starting subframe of the third transmission gap, wherein the starting subframe of the third transmission gap is included in one or more downlink subframes included in the uplink / downlink configuration; or,

[0204] Starting position 2, second subframe, the second subframe is located after the starting subframe of the third transmission gap, and the second subframe is included in one or more downlink subframes included in the uplink / downlink configuration.

[0205] In this embodiment of the application, the communication device determines the starting subframe of the third transmission gap. If the starting subframe of the third transmission gap is included in one or more downlink subframes included in the uplink / downlink configuration, the starting subframe of the first transmission gap is the starting subframe of the third transmission gap. If the starting subframe of the third transmission gap is not included in one or more downlink subframes included in the uplink / downlink configuration, the starting subframe of the first transmission gap is the second subframe.

[0206] The second subframe can be understood as the downlink subframe closest to the start subframe of the third transmission gap among one or more downlink subframes included in the uplink and downlink configuration after the start subframe of the third transmission gap.

[0207] In one example, based on the periodic uplink / downlink configuration shown in Figure 5, as shown in Figure 8, the starting subframe of the third transmission gap is subframe 2 of frame 1. Subframe 2 of frame 1 is included in the 8 subframes contained in the uplink / downlink configuration. Therefore, the starting subframe of the first transmission gap is subframe 2 of frame 1.

[0208] In one example, based on the periodic uplink / downlink configuration shown in Figure 5, the starting subframe of the third transmission gap is subframe 4 of frame 0. Subframe 4 of frame 0 is not included in the 8 subframes included in the uplink / downlink configuration. Then, the starting subframe of the first transmission gap is the downlink subframe 8 of frame 0 that is closest to subframe 4 of frame 0 after subframe 4 of frame 0.

[0209] In this embodiment of the application, the starting subframe of the first transmission gap satisfies a set relation.

[0210] In one example, the defined relation includes: Where, n f n is the frame index of the starting subframe, i.e., the starting frame. s N is the subframe index of the starting subframe. gap,period The period of the first downlink transmission gap is the same as the period of the third transmission gap.

[0211] In some embodiments, the duration of the first transmission gap includes a seventh number of downlink subframes, the seventh number of downlink subframes being included in one or more downlink subframes included in the uplink / downlink configuration, the seventh number being the number of subframes included in the third downlink transmission gap.

[0212] The seventh quantity can be understood as the duration of the downlink transmission gap, and can be denoted as N. gap,duration , where N gap,duration =N gap,coeff N gap,period , where N gap,coeff This is a coefficient representing the duration of the downlink transmission gap.

[0213] In one example, the higher layer configures the period N of the downlink transmission gap. gap,period =64 subframes, the coefficient N for the duration of the transmission gap gap,coeff =1 / 8, then the duration of the downlink transmission gap is N. gap,duration =N gap,coeff N gap,period =1 / 8*64=8 subframes.

[0214] In one example, based on the periodic uplink / downlink configuration shown in Figure 5, as shown in Figure 8, the starting subframe of the downlink transmission gap, i.e., the first transmission gap, is subframe 2 of frame 1. The duration of the downlink transmission gap is 8 subframes, and the duration is determined to be N starting from subframe 2 of frame 1. gap,duration = The first transmission gap is 8 subframes. The first transmission gap is counted only in D downlink subframes in the uplink and downlink configuration. That is, the first transmission gap corresponds to subframes 2 to 5 of frame 1 and subframes 8 to 1 of frame 10. Therefore, the downlink channel is delayed to subframe 2 of frame 10 for transmission.

[0215] In some embodiments, the first gap includes a first scheduling gap;

[0216] The time-domain location of the first scheduling gap is determined based on the uplink / downlink configuration and the second scheduling gap, where the second scheduling gap is the scheduling gap between configured multiple TBs.

[0217] The first scheduling gap can be understood as the actual scheduling gap used, and the second scheduling gap can be understood as the configured scheduling gap.

[0218] For NPDSCH scheduled using NPDCCH with G-RNTI scrambling CRC, if the number of TBs carried by the NPDSCH is greater than 1 and a scheduling gap between multiple TBs, i.e., a second scheduling gap, is configured, then a first scheduling gap is inserted between two adjacent TBs, where the first scheduling gap is based on the D downlink subframe counts in the uplink and downlink configuration.

[0219] In some embodiments, the first scheduling gap includes an eighth number of downlink subframes, which are included in one or more downlink subframes included in the uplink / downlink configuration, and the eighth number is the number of subframes included in the second scheduling gap.

[0220] The eighth quantity can be identified as N. gap .

[0221] The first scheduling gap begins at the downlink subframe following the end of a TB.

[0222] In one example, based on the periodic uplink / downlink configuration shown in Figure 5, as shown in Figure 9, the scheduling gap N between TBs is configured in the higher layer. gap = 8 subframes. If TB1 is transmitted in subframe 1 of frame 1, then a duration of N is inserted before TB2 is transmitted. gap = The scheduling gap of 8 subframes is the first scheduling gap. The first scheduling gap is counted only in the D downlink subframes in the uplink and downlink configuration. That is, the first scheduling gap includes subframes 2 to 5 of frame 1, subframe 8 of frame 9 to subframe 1 of frame 10. Therefore, TB2 starts transmission from subframe 2 of frame 10.

[0223] In some embodiments, the first gap includes a first synchronization gap;

[0224] The time-domain position of the first synchronization gap is determined based on the uplink / downlink configuration and the second synchronization gap, which is a predefined or configured synchronization gap.

[0225] The first synchronization gap can be understood as the actual synchronization gap used, while the second synchronization gap can be understood as the predefined synchronization gap.

[0226] In one example, based on the periodic uplink / downlink configuration shown in Figure 5, as shown in Figure 10, TA equals 10ms.

[0227] For NPUSCH and / or NPRACH transmissions, a first synchronization gap is inserted, which is based on the D downlink subframe counts in the uplink / downlink configuration.

[0228] In some embodiments, the first synchronization gap includes a ninth number of downlink subframes, which are included in one or more downlink subframes included in the uplink / downlink configuration, and the ninth number is the number of subframes included in the second synchronization gap.

[0229] In one example, for NPUSCH transfers, the ninth quantity is based on 40.30720T. s Each time unit is determined, where T s =1 / (15000*2048)=1 / 30720000 seconds, or 1 / 30720ms. Therefore, the ninth quantity corresponds to 40ms, or 40 subframes. Based on the periodic uplink and downlink configuration shown in Figure 5, the ninth quantity of downlink subframes requires 40 / 8=8 downlink subframes in 5 uplink and downlink configurations. Here, the first synchronization gap may include 8 downlink subframes in 5 uplink and downlink configurations, and is counted only in the 8 downlink subframes in the uplink and downlink configurations.

[0230] In some embodiments, the insertion method of the first synchronization gap includes the following two:

[0231] Insertion Method 1: The uplink transmission of each transmission first time is inserted into the first synchronization gap. The first time includes a tenth number of uplink subframes. The tenth number of uplink subframes are included in one or more uplink subframes included in the uplink and downlink configuration. The tenth number is the number of subframes included in a predefined or configured third time.

[0232] Insertion Method 2: Insert the first synchronization gap every second time interval, where the second time interval is predefined or configured by higher-level parameters.

[0233] In insertion mode one, for NPUSCH and / or NPRACH transmissions, the first synchronization gap is inserted for the first uplink transmission of each transmission.

[0234] The first time can be understood as the actual time of uplink transmission between the first synchronization gaps; the third time can be understood as the time of uplink transmission between the predefined or configured first synchronization gaps.

[0235] In one example, for NPUSCH transmission, applied to the uplink / downlink configuration shown in Figure 10, each transmission is 256.30720T. s The first synchronization gap is inserted after each time unit for downlink synchronization, i.e., the third time is 256·30720T. s Each time unit.

[0236] In one example, for NPRACH transmission, applied to the uplink / downlink configuration shown in Figure 10, 4.64 (T) per transmission CP +T SEQ After 4.64 time units, the first synchronization gap is inserted for downlink synchronization, that is, the third time is 4.64 (T). CP +T SEQ ) time units. Where, for preamble format 1, T CP =2048T s T SEQ =5*8192T s For leading format 2, T CP =8192T s ,T SEQ =5*8192T s .

[0237] In this embodiment of the application, the first time may be the time of the tenth uplink subframe.

[0238] In one example, based on the periodic uplink / downlink configuration shown in Figure 5, the third time is 256.30720T. s One time unit, transmitting 256·30720T s Each time unit requires 256ms / 8ms = 32 periodic uplink and downlink configurations, including 8 uplink subframes. Based on this, for every 8 uplink subframes in the 32 uplink and downlink configurations, i.e., 256 uplink subframes, a first synchronization gap is inserted for downlink synchronization.

[0239] In insertion method two, for NPUSCH transmission and / or NPRACH transmission, regardless of whether NPUSCH and / or NPRACH transmission is transmitted, a first synchronization gap is inserted every second time interval.

[0240] In one example, regardless of whether NPUSCH is transmitted, every 256.30720T s Each time unit inserts a first synchronization gap for downlink synchronization.

[0241] In one example, regardless of whether NPRACH is transmitted, every 4.64 (T) CP +T SEQ ( ) time units, insert a first synchronization gap for downlink synchronization.

[0242] In some embodiments, the first gap includes a second transmission gap;

[0243] The temporal location of the second transmission gap is determined based on the uplink / downlink configuration and the last subframe of the uplink transmission segment.

[0244] Uplink transmission may include multiple segments. For a segment, the communication device determines the position of the last subframe of the segment and determines the position of the second transmission gap based on the position of the last subframe.

[0245] The duration of each segment can be a fourth time period. This fourth time period can be configured or predefined.

[0246] In one example, the fourth time is configured as 4ms, then every 4ms of NPUSCH transmission is a segment. As shown in Figure 11, if NPUSCH transmission starts from subframe 8 of frame 0, then subframe 8 of frame 0 to subframe 1 of frame 1 is segment 1, and subframe 2 to subframe 5 of frame 1 is segment 2.

[0247] In some embodiments, the last subframe of the segment is not the last uplink subframe among one or more uplink subframes included in the uplink / downlink configuration, and the temporal location of the second transmission gap is located in the third subframe, which is the uplink subframe following the last subframe of the segment.

[0248] In some embodiments, the last subframe of the segment is the last uplink subframe among one or more uplink subframes included in the uplink / downlink configuration, and the temporal location of the second transmission gap is located in the guard subframe included in the uplink / downlink configuration.

[0249] For NPUSCH transmissions, if the NPUSCH transmission and / or the NPRACH delay reaches the fourth time, and the NPUSCH transmission is the last subframe of the U uplink subframes in the uplink / downlink configuration, then no second transmission gap is inserted; otherwise, a second transmission gap is inserted.

[0250] To ensure that NPUSCH transmission within each segment applies a valid transfer interval (TA), a transmission gap is inserted after each segment for TA adjustment. Taking Figure 11 as an example, the subframe following segment 1 (i.e., subframe 2 of frame 1) is used as the second transmission gap for TA adjustment, thus ensuring that NPUSCH transmission within segment 2 applies a valid TA. After NPUSCH transmission within segment 2 is completed, the last subframe of the U uplink subframes in the uplink / downlink configuration is reached. At this point, NPUSCH transmission for the next segment can occur from subframe 8 of frame 9 to subframe 1 of frame 10 (refer to Figure 5). Therefore, the terminal device can perform TA adjustment on subframe 7 of frame 9, thus eliminating the need for a transmission gap.

[0251] The resource determination method provided in the embodiments of this application will be further described below, taking a communication device as an example of a terminal device.

[0252] This technical solution provides a transmission scheme based on NB-IoT NTN TDD mode, and the specific design is as follows:

[0253] In some embodiments, the terminal device determines the temporal location of the first signal or the first gap based on a periodic uplink / downlink configuration, wherein the periodic uplink / downlink configuration includes D downlink subframes, U uplink subframes and a guard interval, and the period of the periodic uplink / downlink configuration is N radio frames.

[0254] For example, as shown in Figure 5, the periodic uplink / downlink configuration has a period of N = 9 radio frames (i.e., 90 subframes = 90ms), and within each 90ms period, subframe 8 of the first frame to subframe 5 of the second frame are used for uplink / downlink transmission (i.e., U / D = 8 consecutive uplink / downlink subframes used for data transmission), with the remaining subframes serving as guard intervals. In this case, the NB-IoT NTN TDD mode can be implemented based on this periodic uplink / downlink configuration.

[0255] Example 1

[0256] In related technologies, terminal devices assume that NRS is transmitted in specific subframes based on different situations. However, after applying the aforementioned periodic uplink / downlink configuration, only D downlink subframes in the uplink / downlink configuration can be used for NRS transmission. Therefore, NRS transmission needs to take the aforementioned periodic uplink / downlink configuration into account.

[0257] In some embodiments, the terminal device receives NRS based on the periodic uplink / downlink configuration.

[0258] Example 1-1: Determining NRS based on subframe index

[0259] In some embodiments, before obtaining the deployment scenario configuration, the terminal device assumes that the NRS is transmitted in subframes 0 and 4 that overlap with the D downlink subframes in the periodic uplink and downlink configuration, and in subframe 9 that does not contain the NSSS.

[0260] For example, based on the uplink / downlink configuration in Figure 5, i.e., N=9, D=8 (subframe 8 of frame 1 to subframe 5 of frame 2 are used for downlink transmission within a 90ms period), the terminal device only receives NRS in specific subframes that overlap with the D downlink subframes in the periodic uplink / downlink configuration. Before obtaining the deployment scenario configuration, the terminal device assumes that NRS is transmitted in subframe 9 of frame 0 and subframes 0 and 4 of frame 1, thereby avoiding receiving NRS in invalid resource locations.

[0261] In some other embodiments, for independently deployed carriers, before receiving the SIB1-NB, the terminal device assumes that the NRS is transmitted in subframes 0, 1, 3, and 4 that overlap with the D downlink subframes in the periodic uplink / downlink configuration, and in subframe 9 that does not contain NSSS; after receiving the SIB1-NB, the terminal device assumes that the NRS is transmitted in subframes 0, 1, 3, and 4 that overlap with the D downlink subframes in the periodic uplink / downlink configuration, in subframe 9 that does not contain NSSS, and in the NB-IoT downlink subframe.

[0262] For example, based on the uplink / downlink configuration in Figure 5, before receiving the SIB1-NB, the terminal device assumes that the NRS is transmitted in subframe 9 of frame 0 and subframes 0, 1, 3, and 4 of frame 1; after receiving the SIB1-NB, considering that the D downlink subframes in the periodic uplink / downlink configuration are all NB-IoT downlink subframes, the terminal device assumes that the NRS is transmitted in subframe 8 of frame 0 to subframe 5 of frame 1, thereby avoiding receiving the NRS at invalid resource locations.

[0263] Example 1-2: Channel-based NRS determination

[0264] In some other embodiments, for a carrier that does not have an in-band carrier configuration, the terminal device determines the subframe in which the NRS is located based on at least one of the following: the NPDCCH search space, the downlink subframe in which the NPDSCH is located, and D downlink subframes in the periodic uplink and downlink configuration.

[0265] 1) In some embodiments, if a higher layer indicates that the NRS is independent of the NPDCCH using P-RNTI scrambling CRC, the terminal device assumes that the NRS is Xth frame before the start subframe of the NPDCCH search space. Paging The continuous Y starting from each downlink subframe Paging Transmitted on D downlink subframes, wherein the downlink subframes are counted based on the D downlink subframes of the periodic uplink / downlink configuration.

[0266] For example, as shown in Figure 6, in the periodic uplink / downlink configuration, N=9, D=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period are used as downlink subframes), and the starting subframe of the NPDCCH search space using P-RNTI scrambled CRC is subframe 0 in frame 10, then:

[0267] For the higher-layer parameter nB configured as fourT (i.e., each PF contains 4 POs), the terminal device assumes that the NRS is Xth before subframe 0 of frame 10. Paging = Transmitted in 10 downlink subframes (i.e., subframe 8 of frame 0);

[0268] For the higher-layer parameter nB configured as twoT (i.e., each PF contains 2 POs), the terminal device assumes that the NRS is Xth before subframe 0 of frame 10. Paging =Continuous Y starting from 10 downlink subframes Paging = Transmitted in 2 downlink subframes (i.e., subframes 8 and 9 of frame 0);

[0269] For the higher-layer parameter nB configured as oneT (i.e., each PF contains 1 PO), the terminal device assumes that the NRS is Xth before subframe 0 of frame 10. Paging =Continuous Y starting from 10 downlink subframes Paging = Transmitted in 5 downlink subframes (i.e., subframe 8 of frame 0 to subframe 2 of frame 1);

[0270] For higher-layer parameter nB configured to other values ​​(such as T / 2, T / 4, T / 16, T / 32…, where T is the paging period), the terminal device assumes that NRS is before subframe 0 of frame 10. Paging = Transmitted in 10 downlink subframes (i.e., subframe 8 of frame 0 to subframe 5 of frame 1, and subframe 8 to subframe 9 of frame 9).

[0271] Alternatively, in some other embodiments, if the higher layer instructs the NRS to be independent of the NPDCCH using P-RNTI scrambled CRC, the terminal device assumes that the NRS is transmitted in D downlink subframes of the periodic uplink-downlink configuration where the starting subframe of the NPDCCH search space is located.

[0272] For example, as shown in Figure 6, in the periodic uplink / downlink configuration, N=9 and D=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period are D=8 downlink subframes in the periodic uplink / downlink configuration), and the starting subframe of the NPDCCH search space using P-RNTI scrambled CRC is subframe 0 in frame 10. At this time, the D downlink subframes of the periodic uplink / downlink configuration where subframe 0 in frame 10 is located are subframe 8 of frame 9 to subframe 5 of frame 10. Therefore, the terminal device assumes that NRS is transmitted in subframe 8 of frame 9 to subframe 5 of frame 10.

[0273] 2) In some embodiments, if the higher layer configures the terminal device to decode the NPDCCH, the terminal device assumes that the NRS is in the downlink subframe where the NPDCCH search space or the candidate NPDCCH for receiving DCI is located, and the NPDCCH search space or the candidate NPDCCH is X minutes prior. NPDCCH One and after Y NPDCCH Transmitted in D downlink subframes, wherein the downlink subframes are based on the D downlink subframe counts of the periodic uplink / downlink configuration.

[0274] For example, as shown in Figure 6, in the periodic uplink / downlink configuration, N=9, D=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period is used as the downlink subframe), and the NPDCCH search space or the candidate NPDCCH for receiving DCI is located in subframe 0 of frame 10, then the terminal device assumes that the NRS is in subframe 0 of frame 10, and before subframe 0 of frame 10 X... NPDCCH = 10 downlink subframes (i.e., subframe 8 of frame 0 to subframe 5 of frame 1, and subframes 8 to 9 of frame 9) and subsequent Y NPDCCH = Transmitted in 4 downlink subframes (subframes 1 to 4 of frame 10).

[0275] Alternatively, in some other embodiments, if the higher layer configures the terminal device to decode the NPDCCH, the terminal device assumes that the NRS is transmitted in the NPDCCH search space or in the D downlink subframes of the periodic uplink and downlink configuration where the candidate NPDCCH for receiving DCI is located.

[0276] For example, as shown in Figure 6, in the periodic uplink / downlink configuration, N=9, D=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period is used as downlink subframe), and the NPDCCH search space or the candidate NPDCCH for receiving DCI is located in subframe 0 of frame 10. At this time, the D downlink subframes of the periodic uplink / downlink configuration where subframe 0 of frame 10 is located are subframe 8 of frame 9 to subframe 5 of frame 10. Therefore, the terminal device assumes that NRS is transmitted in subframe 8 of frame 9 to subframe 5 of frame 10.

[0277] 3) In some embodiments, if the terminal device receives an NPDSCH scheduled by an NPDCCH, the terminal device assumes that the NRS is in the downlink subframe where the NPDSCH is located, and X minutes before the NPDSCH. NPDSCH One and after Y NPDSCH Transmitted in D downlink subframes, wherein the downlink subframes are based on the D downlink subframe counts of the periodic uplink / downlink configuration.

[0278] For example, as shown in Figure 7, in the periodic uplink / downlink configuration, N=9, D=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period is used as downlink subframes), and NPDCCH schedules NPDSCH to be transmitted in subframe 0 of frame 10. Then, the terminal device assumes that NRS is transmitted in subframe 0 of frame 10, and before subframe 0 of frame 10, X... NPDSCH = 4 downlink subframes (i.e., subframes 4 to 5 of frame 1, and subframes 8 to 9 of frame 9) and Y NPDSCH = 4 The next downlink subframe (subframes 1 to 4 of frame 10) will be sent.

[0279] Alternatively, in some other embodiments, if the terminal device receives an NPDSCH scheduled by an NPDCCH, the terminal device assumes that the NRS is transmitted in D downlink subframes of the periodic uplink / downlink configuration in which the NPDSCH is located.

[0280] For example, as shown in Figure 7, in the periodic uplink / downlink configuration, N=9, D=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period is used as downlink subframes), and NPDCCH schedules NPDSCH to be transmitted in subframe 0 of frame 10. At this time, the D downlink subframes of the periodic uplink / downlink configuration in which subframe 0 of frame 10 is located are subframe 8 of frame 9 to subframe 5 of frame 10. Therefore, the terminal device assumes that NRS is transmitted in subframe 8 of frame 9 to subframe 5 of frame 10.

[0281] 4) The terminal device assumes that the NRS is transmitted in subframes 0, 1, 3, 4, and 9 that coincide with the D downlink subframes in the periodic uplink / downlink configuration. For example, based on the uplink / downlink configuration in Figure 5, the terminal device assumes that the NRS is transmitted in subframe 9 of frames 0 and 9, and in subframes 0, 1, 3, and 4 of frames 1 and 10.

[0282] In this embodiment of the application, the terminal device determines whether a downlink subframe is an NB-IoT downlink subframe according to the following rules:

[0283] • If the terminal device determines that the subframe contains NPSS / NSSS / NPBCH / SIB1-NB transmission, then the subframe is not an NB-IoT downlink subframe;

[0284] Otherwise, if the higher-level parameter resourceReservationConfigDL is configured to reserve resources:

[0285] • For NPDSCH transmissions associated with C-RNTI using the terminal device’s dedicated NPDCCH search space: if the resource reservation field in the DCI is set to '0', the corresponding subframe is an NB-IoT downlink subframe; if the resource reservation field in the DCI is set to '1', and all OFDM symbols in the corresponding subframe are reserved symbols, the subframe is an NB-IoT downlink subframe.

[0286] • For NPDCCH transmissions associated with C-RNTI or SPS C-RNTI using the terminal device’s dedicated NPDCCH search space: if at least one OFDM symbol in the corresponding subframe is not a reserved symbol, then the subframe is an NB-IoT downlink subframe.

[0287] For other cases, the terminal device determines the NB-IoT downlink subframe based on the following conditions:

[0288] • Configure the subframe in SIB1-NB as an NB-IoT downlink subframe;

[0289] The high-level parameter downlinkBitmapNonAnchor configures the subframes on the carrier as NB-IoT downlink subframes.

[0290] Example 2: Determining the gap based on uplink and downlink configuration

[0291] Example 2-1: Downlink Transmission Gap

[0292] In some embodiments, if a downlink transmission gap is configured by a higher layer, the terminal device determines the downlink transmission gap based on the periodic uplink / downlink configuration. Specifically, in some embodiments, the terminal device determines at least one of the following based on D downlink subframes in the periodic uplink / downlink configuration: the start frame and start subframe of the transmission gap, and the duration of the NPDSCH transmission gap.

[0293] Higher layers can configure transmission gaps for downlink transmissions to postpone NPDCCH and / or NPDSCH transmissions, and the start frame and subframe of the transmission gap satisfy the following conditions: Where, N gap,period Let N be the period of the downlink transmission gap, and let N be the duration of the downlink transmission gap. gap,duration =N gap,coeff N gap,period N subframes gap,coeff A coefficient for calculating the duration of the transmission gap.

[0294] For example, as shown in Figure 8, in the periodic uplink / downlink configuration, N=9, D=8 (subframe 8 of the first frame to subframe 5 of the second frame within a 90ms period are referred to as the D=8 downlink subframes), and the higher layer configures the downlink transmission gap period N. gap,period =64 subframes, the coefficient N for the duration of the transmission gap gap,coeff =1 / 8, then the terminal equipment can determine the duration of the downlink transmission gap as N. gap,duration =N gap,coeff N gap,period =1 / 8*64=8 subframes.

[0295] Based on this, the terminal device first determines whether it meets the requirements. frame n f and subframe n s / 2, for example, if NPDSCH is scheduled to start transmission from subframe 2 of frame 1, then subframe 2 of frame 1 corresponds to frame n in the above formula. f =0 and subframe At this time, subframe 2 of frame 1 satisfies Furthermore, since D = 8 downlink subframes are located in the periodic uplink / downlink configuration, subframe 2 of frame 1 is used as the starting frame and starting subframe of the downlink transmission gap. Further, as shown in Figure 8, a duration of N is determined starting from subframe 2 of frame 1. gap,duration = 8 subframes of downlink transmission gap, wherein the downlink transmission gap is counted only in D downlink subframes in the periodic uplink and downlink configuration, that is, the downlink transmission gap corresponds to subframes 2 to 5 of frame 1, subframe 8 of frame 9 to subframe 1 of frame 10, so the scheduled NPDSCH is delayed to be transmitted on subframe 2 of frame 10.

[0296] Example 2-2: Scheduling Gap

[0297] In some embodiments, for NPDSCH scheduled using NPDCCH with G-RNTI scrambling CRC, if the number of TBs carried by the NPDSCH is greater than 1 and a scheduling gap between multiple TBs is configured, a scheduling gap is inserted between two adjacent TBs, wherein the scheduling gap is based on the D downlink subframe counts in the periodic uplink / downlink configuration.

[0298] For example, as shown in Figure 9, in the periodic uplink / downlink configuration, N=9, D=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period are considered as the D=8 downlink subframes), and the scheduling gap N between TBs is configured in the higher layer. gap = 8 subframes. If the terminal device completes TB1 reception in subframe 0 of frame 1, then a duration of N is inserted before TB2 transmission. gap = 8 subframes of scheduling gaps, wherein the scheduling gaps are counted only in D downlink subframes in the periodic uplink and downlink configuration, that is, the scheduling gaps correspond to subframes 2 to 5 of frame 1, subframe 8 of frame 9 to subframe 1 of frame 10, so TB2 starts transmitting from subframe 2 of frame 10.

[0299] Example 2-3: Downlink Synchronization Gap

[0300] In some embodiments, for NPUSCH and / or NPRACH transmissions, a gap of duration five time is inserted every first transmission time or every second transmission time, wherein the gap is based on a count of D downlink subframes in the periodic uplink / downlink configuration. Further, in some embodiments, the first time is a tenth number of U uplink subframes in the periodic uplink / downlink configuration, and / or, the fifth time is a ninth number of D downlink subframes in the periodic uplink / downlink configuration.

[0301] For example, in Figure 10, in the periodic uplink / downlink configuration, N=9, D=U=8 (the subframe 8 of the first frame to the subframe 5 of the second frame within every 90ms period are U / D=8 NB-IoT uplink / downlink subframes), and TA equals 10ms.

[0302] For NPUSCH transmission, each transmission is 256.30720T. s Insert 40.30720T per time unit. s The interval between time units is used for downlink synchronization, where T s = 1 / (15000*2048) seconds. If the periodic uplink / downlink configuration in Figure 10 is applied, the transmission speed is 256.30720T. s Each time unit requires 256ms / U = 256ms / 8ms = 32 periodic uplink / downlink configurations, each consisting of U uplink subframes. Based on this, an interval is inserted for downlink synchronization every 32 transmissions of the U uplink subframes in the periodic uplink / downlink configuration. In this case, the number of times is 32 * 8 = 256. Alternatively, regardless of whether NPUSCH is transmitted, every 256 * 30720T... s Each time unit has an intervening gap for downlink synchronization.

[0303] For NPRACH transmission, each transmission is 4.64 (T) CP +T SEQ For each time unit, a gap of 40.30720Ts is inserted for downlink synchronization. For preamble format 1, T... CP =2048T s T SEQ =5*8192T s For leading format 2, T CP =8192T s ,T SEQ =5*8192T s If the periodic up-and-down configuration in Figure 10 is applied, every 4.64 (T) CP +T SEQWithin a time unit, there can be a maximum of ceil(64*6.4ms / 8ms) = 52 uplink subframes in the aforementioned periodic uplink / downlink configuration. Based on this, every 52 uplink subframes in the aforementioned periodic uplink / downlink configuration are transmitted, an interval is inserted for downlink synchronization. In this case, the number of ceil subframes is 52*8 = 416; or regardless of whether NPRACH is transmitted, every 4.64(T) CP +T SEQ ( ) time units, with an interval inserted for downlink synchronization.

[0304] Furthermore, regarding the gap used for downlink synchronization, if the periodic uplink / downlink configuration is applied, then 40.30720T s The gap between time units requires 40 / 8 = 5 downlink subframes in the periodic uplink / downlink configuration. Based on this, a second quantity of 5 can be defined, that is, the gap is 5 downlink subframes in the periodic uplink / downlink configuration, and is counted only in the D downlink subframes in the periodic uplink / downlink configuration.

[0305] Examples 2-4: Transmission Gap

[0306] In some embodiments, for NPUSCH transmission, if the transmission and / or NPRACH delay reaches the fourth time, the terminal device does not insert a transmission gap if it is the last subframe of U uplink subframes in the periodic uplink / downlink configuration; otherwise, the terminal device inserts a transmission gap.

[0307] For example, as shown in Figure 11, in the periodic uplink / downlink configuration, N=9 and U=8 (subframe 8 of the first frame to subframe 5 of the second frame within every 90ms period are considered as U=8 NB-IoT uplink subframes in the periodic uplink / downlink configuration). If a fourth time is configured... Then, every 4ms of NPUSCH transmission is a NPUSCH segment. Furthermore, if NPUSCH transmission starts from subframe 8 of frame 0, then subframe 8 of frame 0 to subframe 1 of frame 1 is segment 1, and subframe 2 to subframe 5 of frame 1 is segment 2.

[0308] To ensure that the terminal device applies a valid TA to NPUSCH transmission within each segment, a transmission gap needs to be inserted after each segment for TA adjustment. For example, the subframe after segment 1 (i.e., subframe 2 of frame 1) can be used as a transmission gap for TA adjustment, thus ensuring that the NPUSCH transmission within segment 2 applies a valid TA. However, after the NPUSCH transmission within segment 2 is completed, the last subframe of the U uplink subframes in the periodic uplink / downlink configuration is reached. At this time, the NPUSCH transmission of the next segment occurs from subframe 8 of frame 9 to subframe 1 of frame 10 (refer to Figure 5). Therefore, the terminal device can perform TA adjustment on subframe 7 of frame 9, and thus no transmission gap needs to be inserted.

[0309] In this embodiment of the application, a transmission scheme based on TDD mode is provided, in which the terminal device determines the time domain position of the first signal or the first gap based on the periodic uplink and downlink configuration, as follows:

[0310] The terminal device receives NRS based on the aforementioned periodic uplink and downlink configuration:

[0311] a) The terminal device assumes that the NRS is transmitted on a designated subframe that coincides with D downlink subframes in the periodic uplink and downlink configuration, thereby ensuring that the terminal device receives the NRS in a valid resource location;

[0312] b) The terminal device determines the subframe in which the NRS is located based on at least one of the following: the NPDCCH search space, the downlink subframe in which the NPDSCH is located, and D downlink subframes in the periodic uplink / downlink configuration, such that when the periodic uplink / downlink configuration is applied, the terminal device can still receive enough NRS to ensure the decoding performance of the NPDCCH and NPDSCH.

[0313] The terminal device determines the downlink transmission gap based on the periodic uplink and downlink configuration:

[0314] a) The terminal device determines at least one of the following based on the U uplink subframes and D downlink subframes in the periodic uplink and downlink configuration: the start frame and start subframe of the gap, and the duration of the gap, so as to ensure that the terminal device and the network device have the same understanding of the time domain location of the gap;

[0315] b) The gap is based on the D downlink subframe counts in the periodic uplink and downlink configuration, thereby ensuring that the gap is located in a valid time domain position for downlink synchronization or delayed transmission.

[0316] The resource determination method provided in this application embodiment can be applied to any system including NTN systems that use a transmission scheme with TDD mode.

[0317] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be considered as the content disclosed in this application. Moreover, without conflict, the various embodiments and / or the technical features in the various embodiments described in this application can be arbitrarily combined with the prior art, and the resulting technical solutions should also fall within the protection scope of this application.

[0318] It should also be understood that in the various method embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. Furthermore, in the embodiments of this application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data. "Downlink" indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell; "uplink" indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site; and "sidelink" indicates that the transmission direction of signals or data is a third direction from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. Additionally, in the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. Specifically, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0319] Figure 12 is a schematic diagram of the structural composition of the communication device provided in an embodiment of this application. As shown in Figure 12, the communication device 1200 includes:

[0320] The determining unit is configured to determine the time-domain location of the first signal and / or the first gap based on a periodic uplink / downlink configuration; the uplink / downlink configuration includes one or more of the following: one or more uplink subframes, one or more downlink subframes, and one or more guard subframes.

[0321] In some embodiments, the first signal includes a narrowband reference signal (NRS).

[0322] In some embodiments, the time-domain location of the NRS is located in one or more downlink subframes included in the uplink / downlink configuration.

[0323] In some embodiments, the temporal location of the NRS is determined based on the uplink / downlink configuration and a predefined subframe index.

[0324] In some embodiments, the time-domain location of the NRS is located in one or more target subframes, the target subframes being included in one or more subframes corresponding to the predefined subframe index, and the target subframes being included in one or more downlink subframes included in the uplink / downlink configuration.

[0325] In some embodiments, the time-domain location of the NRS is determined based on the uplink / downlink configuration and one of the following:

[0326] Narrowband Physical Downlink Control Channel (NPDCCH) search space;

[0327] The downlink subframe containing the Narrowband Physical Downlink Shared Channel (NPDSCH).

[0328] In some embodiments, the temporal location of the NRS is located in one or more target subframes, the target subframes being included in one or more downlink subframes included in the uplink / downlink configuration, the target subframes being associated with one of the following: the NPDCCH search space and the downlink subframe in which the NPDSCH is located.

[0329] In some embodiments, the one or more target subframes include one of the following:

[0330] A first number of downlink subframes starting from a first subframe, the first subframe being located before the starting subframe of the NPDCCH search space, and a second number of downlink subframes being spaced between the first subframe and the starting subframe of the NPDCCH search space, the first number and / or the second number of downlink subframes being included in one or more downlink subframes included in the uplink / downlink configuration;

[0331] The uplink / downlink configuration includes one or more downlink subframes in which the starting subframe of the NPDCCH search space is located.

[0332] In some embodiments, the one or more target subframes include one of the following:

[0333] The downlink subframe in which the NPDCCH search space is located, the third number of downlink subframes before the NPDCCH search space, and the fourth number of downlink subframes after the NPDCCH search space;

[0334] The uplink and downlink configuration in which the NPDCCH search space is located includes one or more downlink subframes.

[0335] In some embodiments, the one or more target subframes include one of the following:

[0336] The downlink subframe in which the NPDSCH is located, the fifth number of downlink subframes before the NPDSCH, and the sixth number of downlink subframes after the NPDSCH;

[0337] The uplink / downlink configuration in which the NPDSCH is located includes one or more downlink subframes.

[0338] In some embodiments, the temporal location of the first gap is located in one or more downlink subframes or one or more uplink subframes included in the uplink / downlink configuration.

[0339] In some embodiments, the first gap includes one or more of the following:

[0340] The first transmission gap is used to postpone the transmission of NPDCCH and / or NPDSCH;

[0341] The first scheduling gap between the multiple transport blocks (TB) carried by the NPDSCH;

[0342] The first synchronization gap used for downlink synchronization;

[0343] The second transmission gap is used for uplink timing advance TA adjustment.

[0344] In some embodiments, the first gap includes a first transmission gap;

[0345] The time-domain location of the first transmission gap is determined based on the uplink / downlink configuration and the third transmission gap, which is a predefined or configured transmission gap used to postpone the transmission of NPDCCH and / or NPDSCH.

[0346] In some embodiments, the time-domain location of the first transmission gap includes: the starting position and / or duration of the first transmission gap.

[0347] In some embodiments, the starting position of the first transmission gap includes:

[0348] The starting subframe of the third transmission gap, which is included in one or more downlink subframes included in the uplink / downlink configuration; or,

[0349] The second subframe is located after the starting subframe of the third transmission gap, and is included in one or more downlink subframes included in the uplink / downlink configuration.

[0350] In some embodiments, the duration of the first transmission gap includes a seventh number of downlink subframes, the seventh number of downlink subframes being included in one or more downlink subframes included in the uplink / downlink configuration, the seventh number being the number of subframes included in the third downlink transmission gap.

[0351] In some embodiments, the first gap includes a first scheduling gap;

[0352] The time-domain location of the first scheduling gap is determined based on the uplink / downlink configuration and the second scheduling gap, where the second scheduling gap is the scheduling gap between configured multiple TBs.

[0353] In some embodiments, the first scheduling gap includes an eighth number of downlink subframes, which are included in one or more downlink subframes included in the uplink / downlink configuration, and the eighth number is the number of subframes included in the second scheduling gap.

[0354] In some embodiments, the first gap includes a first synchronization gap; the time domain position of the first synchronization gap is determined based on the uplink / downlink configuration and a second synchronization gap, wherein the second synchronization gap is a predefined or configured synchronization gap.

[0355] In some embodiments, the first synchronization gap includes a ninth number of downlink subframes, which are included in one or more downlink subframes included in the uplink / downlink configuration, and the ninth number is the number of subframes included in the second synchronization gap.

[0356] In some embodiments, each uplink transmission of a first time period is inserted into the first synchronization gap, the first time period including a tenth number of uplink subframes, the tenth number of uplink subframes being included in one or more uplink subframes included in the uplink / downlink configuration, the tenth number being the number of subframes included in a predefined or configured third time period.

[0357] In some embodiments, the first synchronization gap is inserted at second intervals, where the second interval is predefined or configured by higher-level parameters.

[0358] In some embodiments, the first gap includes a second transmission gap; the temporal location of the second transmission gap is determined based on the uplink / downlink configuration and the last subframe of the uplink transmission segment.

[0359] In some embodiments, the last subframe of the segment is not the last uplink subframe among one or more uplink subframes included in the uplink / downlink configuration, and the temporal location of the second transmission gap is located in the third subframe, which is the uplink subframe following the last subframe of the segment.

[0360] In some embodiments, the last subframe of the segment is the last uplink subframe among one or more uplink subframes included in the uplink / downlink configuration, and the temporal location of the second transmission gap is located in the guard subframe included in the uplink / downlink configuration.

[0361] The determining unit in the communication device can be implemented by the processor in the communication device.

[0362] Those skilled in the art should understand that the description of the communication device in the embodiments of this application can be understood with reference to the description of the resource determination method in the embodiments of this application.

[0363] Figure 13 is a schematic structural diagram of a communication device 1300 provided in an embodiment of this application. This communication device can be a terminal device or a network device. The communication device 1300 shown in Figure 13 includes a processor 1310, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0364] Optionally, as shown in FIG13, the communication device 1300 may further include a memory 1320. The processor 1310 may retrieve and run computer programs from the memory 1320 to implement the methods described in the embodiments of this application.

[0365] The memory 1320 can be a separate device independent of the processor 1310, or it can be integrated into the processor 1310.

[0366] Optionally, as shown in FIG13, the communication device 1300 may further include a transceiver 1330, and the processor 1310 may control the transceiver 1330 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0367] The transceiver 1330 may include a transmitter and a receiver. The transceiver 1330 may further include an antenna, and the number of antennas may be one or more.

[0368] Optionally, the communication device 1300 can implement the corresponding processes implemented by the communication device in the various methods of the embodiments of this application, which will not be described in detail here for the sake of brevity.

[0369] Figure 14 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 1400 shown in Figure 14 includes a processor 1410, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0370] Optionally, as shown in FIG14, chip 1400 may further include memory 1420. Processor 1410 may retrieve and run computer programs from memory 1420 to implement the methods in the embodiments of this application.

[0371] The memory 1420 can be a separate device independent of the processor 1410, or it can be integrated into the processor 1410.

[0372] Optionally, the chip 1400 may also include an input interface 1430. The processor 1410 can control the input interface 1430 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0373] Optionally, the chip 1400 may also include an output interface 1440. The processor 1410 can control the output interface 1440 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0374] Optionally, the chip can be applied to the communication device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0375] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0376] Figure 15 is a schematic block diagram of a communication system 1500 provided in an embodiment of this application. As shown in Figure 15, the communication system 1500 includes a terminal device 1510 and a network device 1520.

[0377] The terminal device 1510 can be used to implement the corresponding functions implemented by the communication device in the above method, which will not be described in detail here.

[0378] The network device 1520 can be used to implement the corresponding functions implemented by the communication device in the above method, which will not be described in detail here.

[0379] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0380] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0381] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0382] This application also provides a computer-readable storage medium for storing computer programs.

[0383] Optionally, the computer-readable storage medium can be applied to the communication device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0384] This application also provides a computer program product, including computer program instructions.

[0385] Optionally, the computer program product can be applied to the communication device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0386] This application also provides a computer program.

[0387] Optionally, the computer program can be applied to the communication device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0388] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0389] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0390] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0391] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0392] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0393] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0394] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A resource determination method, the method comprising: The communication device determines the time-domain location of a first signal and / or a first gap; the time-domain location of the first signal and / or the first gap is related to a periodic uplink / downlink configuration, which includes one or more of the following: one or more uplink subframes, one or more downlink subframes, and one or more guard subframes.

2. The method according to claim 1, wherein, The first signal includes the narrowband reference signal NRS.

3. The method according to claim 2, wherein, The time-domain location of the NRS is located in one or more downlink subframes included in the uplink / downlink configuration.

4. The method according to claim 2 or 3, wherein, The temporal location of the NRS is determined based on the uplink / downlink configuration and the predefined subframe index.

5. The method according to claim 4, wherein, The time-domain location of the NRS is located in one or more target subframes, the target subframes are contained in one or more subframes corresponding to the predefined subframe index, and the target subframes are contained in one or more downlink subframes included in the uplink / downlink configuration.

6. The method according to claim 2 or 3, wherein, The time-domain location of the NRS is determined based on the uplink / downlink configuration and one of the following: Narrowband Physical Downlink Control Channel (NPDCCH) search space; The downlink subframe containing the Narrowband Physical Downlink Shared Channel (NPDSCH).

7. The method according to claim 6, wherein, The time-domain location of the NRS is located in one or more target subframes, which are included in one or more downlink subframes included in the uplink / downlink configuration. The target subframe is associated with one of the following: the NPDCCH search space and the downlink subframe in which the NPDSCH is located.

8. The method according to claim 7, wherein, The one or more target subframes include one of the following: A first number of downlink subframes starting from a first subframe, the first subframe being located before the starting subframe of the NPDCCH search space, and a second number of downlink subframes being spaced between the first subframe and the starting subframe of the NPDCCH search space, the first number and / or the second number of downlink subframes being included in one or more downlink subframes included in the uplink / downlink configuration; The uplink / downlink configuration includes one or more downlink subframes in which the starting subframe of the NPDCCH search space is located.

9. The method according to claim 7, wherein, The one or more target subframes include one of the following: The downlink subframe in which the NPDCCH search space is located, the third number of downlink subframes before the NPDCCH search space, and the fourth number of downlink subframes after the NPDCCH search space; The uplink and downlink configuration in which the NPDCCH search space is located includes one or more downlink subframes.

10. The method according to claim 7, wherein, The one or more target subframes include one of the following: The downlink subframe in which the NPDSCH is located, the fifth number of downlink subframes before the NPDSCH, and the sixth number of downlink subframes after the NPDSCH; The uplink / downlink configuration in which the NPDSCH is located includes one or more downlink subframes.

11. The method according to any one of claims 1 to 10, wherein, The temporal location of the first gap is located in one or more downlink subframes or one or more uplink subframes included in the uplink / downlink configuration.

12. The method according to claim 11, wherein, The first gap includes one or more of the following: The first transmission gap is used to postpone the transmission of NPDCCH and / or NPDSCH; The first scheduling gap between the multiple transport blocks (TB) carried by the NPDSCH; The first synchronization gap used for downlink synchronization; The second transmission gap is used for uplink timing advance TA adjustment.

13. The method according to claim 11 or 12, wherein, The first gap includes the first transmission gap; The time-domain location of the first transmission gap is determined based on the uplink / downlink configuration and the third transmission gap, which is a predefined or configured transmission gap used to postpone the transmission of NPDCCH and / or NPDSCH.

14. The method according to claim 13, wherein, The time-domain location of the first transmission gap includes: The starting position and / or duration of the first transmission gap.

15. The method according to claim 14, wherein, The starting position of the first transmission gap includes: The starting subframe of the third transmission gap, which is included in one or more downlink subframes included in the uplink / downlink configuration; or, The second subframe is located after the starting subframe of the third transmission gap, and is included in one or more downlink subframes included in the uplink / downlink configuration.

16. The method of claim 14, wherein, The duration of the first transmission gap includes a seventh number of downlink subframes, which are included in one or more downlink subframes in the uplink / downlink configuration, and the seventh number is the number of subframes included in the third downlink transmission gap.

17. The method according to any one of claims 11 to 16, wherein, The first gap includes the first scheduling gap; The time-domain location of the first scheduling gap is determined based on the uplink / downlink configuration and the second scheduling gap, where the second scheduling gap is the scheduling gap between configured multiple TBs.

18. The method according to claim 17, wherein, The first scheduling gap includes an eighth number of downlink subframes, which are included in one or more downlink subframes included in the uplink / downlink configuration, and the eighth number is the number of subframes included in the second scheduling gap.

19. The method according to any one of claims 11 to 18, wherein, The first gap includes the first synchronization gap; The time-domain position of the first synchronization gap is determined based on the uplink / downlink configuration and the second synchronization gap, which is a predefined or configured synchronization gap.

20. The method according to claim 19, wherein, The first synchronization gap includes a ninth number of downlink subframes, which are included in one or more downlink subframes included in the uplink / downlink configuration, and the ninth number is the number of subframes included in the second synchronization gap.

21. The method according to claim 19 or 20, wherein, Each uplink transmission of the first time period is inserted into the first synchronization gap. The first time period includes a tenth number of uplink subframes. The tenth number of uplink subframes are included in one or more uplink subframes included in the uplink / downlink configuration. The tenth number is the number of subframes included in a predefined or configured third time period.

22. The method according to claim 19 or 20, wherein, The first synchronization gap is inserted every second time interval, where the second time interval is predefined or configured by higher-level parameters.

23. The method according to any one of claims 11 to 22, wherein, The first gap includes the second transmission gap; The temporal location of the second transmission gap is determined based on the uplink / downlink configuration and the last subframe of the uplink transmission segment.

24. The method according to claim 23, wherein, The last subframe of the segment is not the last uplink subframe among one or more uplink subframes included in the uplink / downlink configuration, and the temporal location of the second transmission gap is located in the third subframe, which is the uplink subframe following the last subframe of the segment.

25. The method according to claim 23, wherein, The last subframe of the segment is the last uplink subframe among one or more uplink subframes included in the uplink / downlink configuration, and the time domain location of the second transmission gap is located in the guard subframe included in the uplink / downlink configuration.

26. A communication device, comprising: The determining unit is configured to determine the time-domain position of a first signal and / or a first gap; the time-domain position of the first signal and / or the first gap is related to a periodic uplink / downlink configuration, which includes one or more of the following: one or more uplink subframes, one or more downlink subframes, and one or more guard subframes.

27. A communication device, comprising: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1 to 25.

28. A chip, comprising: A processing unit is configured to retrieve and run a computer program from a memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 25.

29. A computer-readable storage medium for storing a computer program, the execution of which causes a computer to perform the method as claimed in any one of claims 1 to 25.

30. A computer program product comprising computer program instructions, the execution of which causes a computer to perform the method as described in any one of claims 1 to 25.

31. A computer program, the execution of which causes a computer to perform the method as described in any one of claims 1 to 25.

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