Method, device and equipment for mapping downlink signal to uplink signal resource

Abstract

The invention discloses a method, device and equipment for mapping downlink signals to uplink signal resources, and belongs to the field of communication, and the method for mapping the downlink signals to the uplink signal resources comprises the steps that a terminal determines the uplink signal resources corresponding to the downlink signals according to the types of the resources where the downlink signals are located; the terminal sends an uplink signal according to the uplink signal resource; wherein the resource type of the uplink signal resource comprises at least one of the following: an uplink sub-band and an uplink time unit. In the embodiment of the invention, the terminal can determine the uplink signal resource corresponding to the downlink signal according to the resource type of the downlink signal, and the resource type of the uplink signal resource can support a duplex mode, so that the system resource utilization rate can be improved, the time delay can be reduced, and the uplink coverage can also be improved.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a method, apparatus, and device for mapping downlink signals to uplink signal resources. Background Art

[0002] In a cellular network, to more flexibly utilize limited spectrum resources, half-duplex mode and full-duplex mode are introduced; among them, half-duplex mode: at the same moment, only uplink transmission or downlink transmission can be performed, and the two cannot be carried out simultaneously; full-duplex mode: at the same moment, uplink transmission and downlink transmission can be carried out simultaneously at different frequency domain positions.

[0003] At present, there is an association relationship between a random access opportunity (RACH Occasion, RO) and an actually transmitted synchronization signal block (Synchronization Signal Block, SSB). For example, one SSB may be associated with multiple ROs, or multiple SSBs may be associated with 1 RO, and the RO can be located on an uplink symbol or a flexible symbol.

[0004] However, after the duplex mode is introduced, the current RO design cannot give full play to the duplex advantage. How to perform the mapping of SSB to RO in the duplex mode is a problem that needs to be solved. Summary of the Invention

[0005] Embodiments of this application provide a method, apparatus, and device for mapping downlink signals to uplink signal resources. A terminal can determine the type of uplink signal resources mapped by a downlink signal according to the resource type where the downlink signal is located, and the type of uplink signal resources can support the duplex mode, thereby improving system resource utilization and reducing latency, and can also improve uplink coverage, and can solve the problem of mapping SSB to RO in the duplex mode.

[0006] For the sake of simplicity of description, this application only focuses on describing uplink subbands (located within a downlink time unit or an uplink time unit or a flexible time unit) and uplink time units (without configured subbands).

[0007] This application can also be applied to flexible time units, including: flexible time units without configured subbands, flexible time units with only uplink subbands configured, flexible time units with only downlink subbands configured, and flexible time units with both uplink and downlink subbands configured.

[0008] In the embodiments of the present application, for downlink signals, they can be transmitted in downlink time units, or in downlink sub-bands within downlink time units or uplink time units, or in flexible time units (without configured sub-bands), or in downlink sub-bands of flexible time units configured with downlink sub-bands, or in non-uplink sub-bands and guard band (GB) resources of flexible time units configured only with uplink sub-bands.

[0009] In the embodiments of the present application, for uplink signals, they can be transmitted in uplink time units, or in uplink sub-bands within downlink time units or uplink time units, or in flexible time units (without configured sub-bands), or in uplink sub-bands of flexible time units configured with uplink sub-bands, or in non-downlink sub-bands and guard band (GB) resources of flexible time units configured only with downlink sub-bands.

[0010] The RO described in the embodiments of the present application may include ROs located in UL sub-bands and ROs located in UL time domain units (without configured sub-bands).

[0011] The RO described in the embodiments of the present application may also include RO resources spanning at least two types of time units. If an RO spans different time domain unit types (such as UL SB and uplink time domain units), the network can configure this RO to belong to a determined time domain unit type. For example, an RO belonging to a UL SB or an RO belonging to an uplink time domain unit.

[0012] According to the above situation, there can be multiple combinations for the mapping from downlink signals to uplink signals.

[0013] In a first aspect, a method for mapping downlink signal resources to uplink signal resources is provided, including:

[0014] The terminal determines the uplink signal resources corresponding to the downlink signal according to the resource type where the downlink signal is located;

[0015] The terminal sends an uplink signal according to the uplink signal resources;

[0016] Wherein, the resource type where the uplink signal resources are located includes at least one of the following:

[0017] Uplink sub-band, uplink time unit.

[0018] In a second aspect, a method for mapping downlink signal resources to uplink signal resources is provided, including:

[0019] The network side device sends configuration information to the terminal;

[0020] Wherein, the configuration information is used to configure the time domain unit type of the uplink signal resources corresponding to the downlink signal according to the time domain unit type where the downlink signal is located;

[0021] Among them, the resource type where the uplink signal resource is located includes at least one of the following:

[0022] Uplink sub-band, uplink time unit.

[0023] In a third aspect, a mapping device from a downlink signal to an uplink signal resource is provided, including:

[0024] A processing unit, configured to determine the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located;

[0025] A transceiver unit, configured to send an uplink signal according to the uplink signal resource;

[0026] Among them, the resource type where the uplink signal resource is located includes at least one of the following:

[0027] Uplink sub-band, uplink time unit.

[0028] In a fourth aspect, a mapping device from a downlink signal to an uplink signal resource is provided, including:

[0029] A transceiver unit, configured to send configuration information to a terminal;

[0030] Among them, the configuration information is used to configure the time domain unit type of the uplink signal resource corresponding to the downlink signal according to the time domain unit type where the downlink signal is located;

[0031] Among them, the resource type where the uplink signal resource is located includes at least one of the following:

[0032] Uplink sub-band, uplink time unit.

[0033] In a fifth aspect, a terminal is provided. The terminal includes a transceiver, a processor, and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0034] In a sixth aspect, a terminal is provided, including a processor and a communication interface;

[0035] Among them, the processor is configured to determine the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located; the communication interface is configured to send an uplink signal according to the uplink signal resource;

[0036] Among them, the resource type where the uplink signal resource is located includes at least one of the following:

[0037] Uplink sub-band, uplink time unit.

[0038] In a seventh aspect, a network-side device is provided. The network-side device includes a transceiver, a processor, and a memory. The memory stores programs or instructions that can run on the processor. When the programs or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0039] In an eighth aspect, a network-side device is provided, including a processor and a communication interface;

[0040] wherein, the communication interface is used to send configuration information to a terminal;

[0041] wherein, the configuration information is used to configure the time-domain unit type of the uplink signal resource corresponding to the downlink signal based on the time-domain unit type of the downlink signal;

[0042] wherein, the resource type of the uplink signal resource includes at least one of the following:

[0043] an uplink sub-band, an uplink time unit.

[0044] In a ninth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0045] In a tenth aspect, a wireless communication system is provided, including: a terminal and a network-side device. The terminal can be used to execute the steps of the method described in the first aspect, and the network-side device can be used to execute the steps of the method described in the second aspect.

[0046] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0047] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The program / program product is executed by at least one processor to implement the steps of the mapping method of the downlink signal to the uplink signal resource described in the first aspect or the second aspect.

[0048] In the embodiments of the present application, the terminal can determine the uplink signal resource corresponding to the downlink signal according to the resource type of the downlink signal, and the resource type of the uplink signal resource can support a duplex mode, so as to improve the system resource utilization rate, reduce the delay, and also improve the uplink coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1It is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

[0050] Figure 2 It is a schematic diagram of a full duplex provided by the present application.

[0051] Figure 3 It is another schematic diagram of a full duplex provided by the present application.

[0052] Figure 4 It is a schematic diagram of a gNB full duplex and a UE full duplex provided by the present application.

[0053] Figure 5 It is a schematic diagram of a full duplex and a guard band (GB) provided by the present application.

[0054] Figure 6 It is a schematic flowchart of a method for mapping a downlink signal to an uplink signal resource provided by an embodiment of the present application.

[0055] Figure 7 It is a schematic diagram of a full duplex mode and a guard interval provided by an embodiment of the present application.

[0056] Figure 8 It is a schematic diagram of a duplex configuration and a duplex mode period provided by an embodiment of the present application.

[0057] Figure 9 It is a schematic diagram of an SSB-to-RO mapping period, an SSB-to-RO association period, and an SSB-to-RO association mode period provided by an embodiment of the present application.

[0058] Figure 10 It is a schematic diagram of an SSB-to-RO mapping provided by an embodiment of the present application.

[0059] Figure 11 It is another schematic diagram of an SSB-to-RO mapping provided by an embodiment of the present application.

[0060] Figure 12 It is another schematic diagram of an SSB-to-RO mapping provided by an embodiment of the present application.

[0061] Figure 13 It is still another schematic diagram of an SSB-to-RO mapping provided by an embodiment of the present application.

[0062] Figures 14(a) to 14(c) It is a schematic diagram of the time domain unit types and RO types supported by the network side device and the terminal of SBFD provided by an embodiment of the present application.

[0063] Figure 15It is a schematic flowchart of another method for mapping downlink signals to uplink signal resources provided according to an embodiment of the present application.

[0064] Figure 16 It is a schematic block diagram of an apparatus for mapping downlink signals to uplink signal resources provided according to an embodiment of the present application.

[0065] Figure 17 It is a schematic block diagram of another apparatus for mapping downlink signals to uplink signal resources provided according to an embodiment of the present application.

[0066] Figure 18 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0067] Figure 19 It is a schematic diagram of the hardware structure of a terminal provided according to an embodiment of the present application.

[0068] Figure 20 It is a schematic block diagram of a network-side device provided according to an embodiment of the present application. Detailed implementation manners

[0069] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0070] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0071] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly informs the receiver of specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information based on the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0072] It should be noted that the technology described in the embodiments of this application is not limited to the Ambient Internet of Things (IoT) system, but can also be used in other wireless communication systems, such as Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), Bluetooth systems, or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses the NR term in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0073] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0074] The network-side device 12 may include an access network device or a core network device.

[0075] Among them, the access network device may also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc. Among them, the base station may be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to a specific technical term. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0076] Among them, the core network devices may include but are not limited to at least one of the following: core network nodes, core network functions, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), Network Data Analytics Function (NWDAF), Location Management Function (LMF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0077] To facilitate a better understanding of the embodiments of this application, the random access process related to this application is described.

[0078] The random access procedure can be a contention-based random access procedure or a non-contention-based random access procedure. The random access procedure can be a four-step random access procedure (also known as Type-1 random access procedure) or a two-step random access procedure (also known as Type-2 random access procedure).

[0079] In a four-step random access (4-step RACH), the UE first sends message 1 (Msg1) to the network, which contains a preamble; after the network detects the preamble, it will send message 2 (Msg2) or a Random Access Response (RAR) message, which contains the number of the preamble detected by the network and the uplink radio resources allocated for the UE to send message 3 (Msg3); after the UE receives Msg2 and confirms that at least one of the preamble numbers carried in Msg2 is the same as the preamble number it sent, it sends Msg3 containing contention resolution information according to the resources indicated by the RAR; after the network receives Msg3, it will send message 4 (Msg4) containing contention resolution information; after the UE receives Msg4 and confirms that the resolution information is the same as what it sent in Msg3, the four-step random access is completed.

[0080] The network includes uplink grant (UL grant) information in the RAR to indicate the scheduling information of the Msg3 Physical Uplink Shared Channel (PUSCH), and includes information such as Random Access Preamble ID (RAPID), Temporary Cell Radio Network Temporary Identity (TC-RNTI), and Timing Advance (TA). If the network does not receive the Msg3 PUSCH, it can schedule the retransmission of the Msg3 PUSCH in the Physical Downlink Control Channel (PDCCH) scrambled with the TC-RNTI.

[0081] For the competitive random access process, different UEs randomly select preambles for transmission. In this way, different UEs may select the same preamble to send on the same time-frequency radio resource (RACH opportunity (RO) resource). This situation can be understood as a preamble collision of UEs. In this case, different UEs will receive the same RAR. Then, different UEs will perform the transmission of Msg3 PUSCH according to the scheduling information in the RAR UL grant. The network decodes the PUSCH (including the contention resolution information) sent by the UE on the Msg3 PUSCH scheduling resource. Therefore, the network will include the contention resolution information received in Msg3 in Msg4. If the contention resolution information in the Msg4 received by the UE matches the contention resolution information sent by the UE in the Msg3 PUSCH, the UE considers the contention resolution to be successful. If they do not match, the contention resolution is considered unsuccessful.

[0082] If the contention resolution is unsuccessful, the UE re-selects the RACH resource, performs the transmission of the Physical Random Access Channel (PRACH), and makes the next random access attempt.

[0083] In the two-step random access (2-step RACH), the first step is for the UE to send MsgA to the network side. After receiving MsgA, the network side sends a MsgB message to the UE. If the UE does not receive MsgB within a certain time, the UE will increment the counter that counts the number of MsgA transmissions and re-send MsgA. If the counter that counts the number of MsgA transmissions reaches a certain threshold, the UE will switch from the 2-step random access process to the 4-step random access process.

[0084] MsgA includes a MsgA preamble part and a MsgA PUSCH part. The preamble part is sent on the RO used for 2-step RACH, and the PUSCH part is sent on the MsgA PUSCH resource associated with the MsgA preamble and the RO. The MsgA PUSCH resource is a set of PUSCH resources configured for each PRACH slot, including time-frequency resources and Demodulation Reference Signal (DMRS) resources, and is associated with the PRACH resources within the PRACH slot.

[0085] To facilitate a better understanding of the embodiments of the present application, the selection of random access resources related to the present application and the mapping of the Synchronization Signal Block (SSB) to the RO are described.

[0086] In NR, a cell can configure multiple frequency-division multiplexing (FDM) PRACH transmission opportunities (PRACH transmission occasion) or PRACH opportunities (PRACH Occasion) in the time-domain position of a transmitted PRACH, which can be abbreviated as random access opportunities (RACH Occasion, RO). At a certain moment, the number of ROs that can perform FDM can be: {1, 2, 4, 8}. At a certain moment, 8 RO resources are distributed on different frequencies.

[0087] The random access preamble can only be transmitted on the time-domain resources (i.e., RO resources) configured by the parameter PRACH configuration index (PRACHConfigurationIndex), and the random access preamble can only be transmitted on the frequency-domain resources configured by the parameter prach-FDM. The PRACH frequency-domain resource n RA ∈{0, 1,..., M - 1}, where M is equal to the high-layer parameter prach-FDM. At the initial access, the PRACH frequency-domain resource n RA is numbered in ascending order starting from the RO resource with the lowest frequency in the initial active uplink bandwidth part. Otherwise, the PRACH frequency-domain resource n RA is numbered in ascending order starting from the RO resource with the lowest frequency in the active uplink bandwidth part.

[0088] In NR, there is an association relationship between the RO and the actually transmitted SSB. One SSB may be associated with multiple ROs, or multiple SSBs may be associated with 1 RO (in this case, different SSBs correspond to different preamble codes). Generally, the base station can use different beams to transmit different SSBs, and the corresponding UE transmits the preamble on the RO associated with the SSB. In this way, the UE selects the RO / "RO and preamble combination" associated with the SSB with good signal according to the intensity of the received downlink beam / SSB to perform Msg1 transmission.

[0089] In this way, the network can determine the SSB selected by the UE based on the received RO / "RO and preamble combination" of the Preamble, and send Msg2 on the downlink beam corresponding to the SSB to ensure the reception quality of the downlink signal.

[0090] It should be noted that the SSB can also be referred to as a synchronization signal / physical broadcast channel block (SS / PBCH block).

[0091] To facilitate a better understanding of the embodiments of the present application, the PRACH time-domain resource positions (period, RO, etc.) related to the present application are described.

[0092] The PRACH resource is a periodic resource. In the time domain, different PRACH Preamble formats have different durations. The time-domain position of the PRACH resource is defined by the PRACH configuration period, radio frame index, subframe / slot index, starting PRACH orthogonal frequency-division multiplexing (OFDM) symbol index within the slot, and the number of time-domain ROs within the slot. Among them, the candidate values of the PRACH configuration period are {10, 20, 40, 80, 160} ms. The PRACH resources are only distributed within one valid radio frame (10 ms) within each PRACH configuration period. This valid radio frame contains one or more subframes / slots. There is only one starting PRACH OFDM symbol index within each subframe / slot, and there is one or more time-domain ROs within a slot. In the frequency domain, different PRACH Preamble formats and subcarrier spacings jointly determine the frequency-domain bandwidth occupied by the PRACH. For the long Preamble format with a length of 839, when the PRACH subcarrier spacing is 1.25 kHz, the frequency-domain bandwidth is 1.08 MHz (corresponding to 6 physical resource blocks (PRBs) with a PUSCH subcarrier spacing of 15 kHz).

[0093] To facilitate a better understanding of the embodiments of the present application, the mapping period from the SSB to the RO (SSB-RO Mapping cycle) related to the present application is described.

[0094] In NR, there is an association relationship between the RO and the actually transmitted SSB. The RO is associated with the SSB in the order of frequency domain (from low frequency to high frequency) first and then time domain. One SSB may be associated with multiple consecutive ROs, or multiple SSBs may be associated with one RO (in this case, different SSBs correspond to different Preambles), which is configured by the network through the parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB. After all SSBs are associated with ROs in one round, it constitutes an SSB-RO mapping cycle.

[0095] To facilitate a better understanding of the embodiments of the present application, the SSB-RO association cycle related to the present application is described.

[0096] An SSB-RO association cycle may include one or more SSB-RO mapping cycles.

[0097] The definition of the association cycle in which the SSB is mapped to the RO is that at least one round of mapping from the SSB to the RO is completed within this cycle, so that each actually transmitted SSB is mapped to at least one RO. The association cycle in which the SSB is mapped to the RO must be an integer multiple of the PRACH configuration cycle, and the multiple is the minimum value among the values listed in Table 1 below.

[0098] Among them, this association cycle is calculated starting from radio frame 0. Within one association cycle, after one round of mapping from the SSB to the RO is completed, the next round of mapping continues until the remaining ROs are not sufficient to complete one round of mapping from the SSB to the RO. If the remaining ROs are not sufficient to complete one round of mapping from the SSB to the RO, then these remaining ROs form an invalid RO set. All ROs within this invalid RO set cannot be associated with the SSB and cannot be used for PRACH transmission.

[0099] Table 1

[0100]

[0101] To facilitate a better understanding of the embodiments of the present application, the SSB-RO association pattern period related to the present application is described.

[0102] Since under some configuration conditions, the number of valid ROs included in the SSB-RO association cycle is variable, therefore, the NR protocol further defines the time domain repetition period of the association cycle in which the SSB is mapped to the RO through the association pattern period. The maximum value of the SSB-RO association pattern period is 160 ms.

[0103] An association pattern period from an SSB to an RO may include one or more SSB-RO association periods, and the mapping from the SSB to the RO is repeated in the association pattern period.

[0104] For better understanding of the embodiments of the present application, the enhanced duplex mode related to the present application is described.

[0105] In the 5G mobile communication system, in order to adapt to diverse scenarios and service requirements, enhanced technologies have been made for full duplex. The main scenarios of 5G include Enhance Mobile Broadband (eMBB), Ultra-Reliable and Low Latency Communication (URLLC), and massive machine type of communication (mMTC). These scenarios have put forward requirements for the system such as high reliability, low latency, large bandwidth, and wide coverage.

[0106] In NR, configuring full duplex operation can significantly improve the latency and coverage performance of a Time Division Duplex (TDD) system. Specifically, for subband non-overlapping full duplex, since there is no overlap between the uplink subband and the downlink subband, the self-interference is small, which can reduce the transmission latency and enhance the coverage.

[0107] For a downlink (DL) slot (configured by tdd-UL-DL-ConfigurationCommon or TDD-UL-DL-ConfigurationDedicated), the network configures a downlink Band Width Part (BWP) for the UE, such as Figure 2 Slot 1 in

[0108] For an uplink (UL) slot (configured by TDD-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), the network configures a UL BWP for the UE, such as Figure 3 Slot 4 in

[0109] For a downlink slot (configured by TDD-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), in the full duplex scenario, as Figure 2 shown, there are the following cases:

[0110] Case 1: Configure the DL BWP, such as slot 1;

[0111] Case 2: Configure the DL BWP and the uplink sub-band (UL SB), such as slot 2.

[0112] For an uplink slot, in the full duplex scenario, as Figure 3 shown, there are the following cases:

[0113] Case 3: Configure the UL BWP, such as slot 4;

[0114] Case 4: Configure the UL BWP and the downlink sub-band (DL SB), such as slot 5.

[0115] For sub-band full duplex (SBFD) operation, an SBFD sub-band consists of 1 resource block (RB) or a continuous set of RBs with the same transmission direction.

[0116] The time unit used by the gNB for SBFD operation (such as a slot or a symbol) can be referred to as the SBFD time unit (such as a slot or a symbol).

[0117] An exemplary duplex mode is as follows: The network side is full duplex. At the same moment, uplink transmission and downlink transmission can be carried out simultaneously at different frequency domain positions. To avoid interference between the uplink and the downlink, a certain guard band can be left between the frequency domain positions (corresponding to duplex sub-bands) corresponding to different transmission directions; The terminal side is half duplex, that is, consistent with TDD. At the same moment, only uplink transmission or downlink transmission can be performed, and the two cannot be carried out simultaneously. It can be understood that in this duplex mode, the uplink transmission and downlink transmission of the network side at the same moment can only be for different terminals.

[0118] Another exemplary duplex mode is as follows: Both the terminal side and the network side are full duplex, as Figure 4As shown, both the terminal side and the network side operate in a duplex mode. Specifically, for the terminal side and the network side, at the same moment, UL transmission and DL transmission can be carried out simultaneously at different frequency domain positions.

[0119] For full duplex on the UE side, a relatively large guard band (GB) (greater than the GB required for full duplex (FD) operation of the base station) may be required to suppress self-interference, as Figure 5 shown.

[0120] For a communication device, since UL and DL transmissions are carried out simultaneously, it will cause self-interference. To ensure the transmission in the interfered direction, the communication device needs to have the ability to cancel self-interference. For example, a guard band is reserved between the receiving frequency band and the transmitting frequency band, but this will reduce the throughput of the UE.

[0121] At present, the UE can only send preambles on uplink symbols or flexible symbols. For a network configuration mainly with downlink services, the time-domain resources for the UE to send preambles are limited, which may cause conflicts between UEs and is not conducive to the coverage of PRACH and Msg 3. When the duplex mode is introduced, the UE can send preambles on the UL SB, which improves the coverage of PRACH, etc. However, how to map the SSB to the RO is a problem that needs to be solved.

[0122] Based on the above problems, the present application proposes a mapping scheme for downlink signals to uplink signal resources. The terminal can determine the uplink signal resources corresponding to the downlink signals according to the resource type where the downlink signals are located, and the resource type where the uplink signal resources are located can support the duplex mode, thereby improving the system resource utilization rate, reducing the delay, and also improving the uplink coverage.

[0123] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least some of the following contents.

[0124] Figure 6 is a schematic flowchart of a mapping method 200 for downlink signals to uplink signal resources according to an embodiment of the present application, as Figure 6 shown. The mapping method 200 for downlink signals to uplink signal resources may include at least some of the following contents:

[0125] S210, the terminal determines the uplink signal resources corresponding to the downlink signals according to the resource type where the downlink signals are located;

[0126] S220. The terminal sends an uplink signal according to the uplink signal resource.

[0127] Wherein, the resource type where the uplink signal resource is located includes at least one of the following:

[0128] Uplink sub-band, uplink time unit.

[0129] It should be understood that Figure 6 shows the steps or operations of the mapping method 200 from a downlink signal to an uplink signal resource, but these steps or operations are only examples. Embodiments of the present application can also perform other operations or Figure 6 variations of each operation in.

[0130] Correspondingly, in embodiments of the present application, the network-side device can receive an uplink signal according to the uplink signal resource.

[0131] In some embodiments, the downlink signal includes but is not limited to at least one of the following:

[0132] Synchronization Signal Block (SSB), Channel State Information Reference Signal (CSI-RS).

[0133] The SSB described in embodiments of the present application can be used interchangeably with the SS / PBCH block, and can also be called any information block or resource block that includes at least one of a synchronization signal, a broadcast signal, a broadcast channel (PBCH), other system messages, and a downlink broadcast channel.

[0134] In some embodiments, the uplink signal resource includes but is not limited to at least one of the following:

[0135] Random Access CHannel Occasion (RO), ConfigureGrant Physical Uplink Shared CHannel (CG-PUSCH) resource, Sounding Reference Signal (SRS) resource.

[0136] The RO described in embodiments of the present application and the PRACH Occasion both refer to the time-frequency resources required to send a PRACH sequence. Among them, the PRACH resource can include the PRACH time-frequency resource or the PRACH sequence.

[0137] Optionally, the RO described in the embodiments of the present application may include at least one of the following: shared RO, separate RO, separately configured RO.

[0138] Specifically, shared RO means that different downlink signals are mapped to the same RO resource set, and this RO resource pool has PRACH sequences for a certain type of PRACH transmission and PRACH sequences for another type of PRACH transmission, that is, preamble format. Separate RO or separately configured RO means a PRACH occasion that is additionally configured only for different types of PRACH transmissions, and different downlink signals can be mapped to different RO resource sets, and the RO resource sets can be configured separately.

[0139] Exemplarily, the correspondence between downlink signals and uplink signal resources may include at least one of the following:

[0140] Mapping of SSB to RO;

[0141] Mapping of SSB to CG-PUSCH resources;

[0142] Mapping of SSB to SRS resources;

[0143] Mapping of CSI-RS to RO;

[0144] Mapping of CSI-RS to CG-PUSCH resources;

[0145] Mapping of CSI-RS to SRS resources.

[0146] In the embodiments of the present application, the resource type where the uplink signal resources are located includes at least one of the following: uplink subbands, uplink time units. Thus, it is possible to support the duplex mode, that is, the uplink signal resources can be used for the terminal to transmit uplink signals in the duplex mode.

[0147] In the embodiments of the present application, the terminal can determine the uplink signal resources mapped by the downlink signals according to the resource type where the downlink signals are located, and the resource type where the uplink signal resources are located can support the duplex mode, thereby improving the system resource utilization rate, reducing the latency, and also improving the uplink coverage.

[0148] For the sake of simplicity of description, the embodiments of the present application only focus on describing the uplink signal resources of uplink subbands (located within downlink time units, uplink time units, or flexible time units) and uplink time units (without configured subbands).

[0149] The embodiments of the present application can also be applied to flexible time units, including: flexible time units without configured subbands, flexible time units with only uplink subbands configured, flexible time units with only downlink subbands configured, and flexible time units with both uplink and downlink subbands configured.

[0150] In the embodiments of the present application, for downlink signals, they can be transmitted in downlink time units, or in downlink subbands within downlink time units or uplink time units, or in flexible time units (without configured subbands), or in downlink subbands of flexible time units with downlink subbands configured, or in non - uplink subbands and guard band (GB) resources of flexible time units with only uplink subbands configured.

[0151] In the embodiments of the present application, for uplink signals, they can be transmitted in uplink time units, or in uplink subbands within downlink time units or downlink time units, or in flexible time units (without configured subbands), or in uplink subbands of flexible time units with uplink subbands configured, or in non - downlink subbands and guard band (GB) resources of flexible time units with only downlink subbands configured.

[0152] It should be noted that the uplink resources for enhanced duplex can refer to transmission resources that support uplink subbands on downlink time units, or transmission resources that support downlink subbands on uplink time units, or transmission resources that support at least one of uplink subbands and downlink subbands on flexible time units.

[0153] The RO described in the embodiments of the present application can include ROs located in UL subbands and ROs located in UL time domain units (without configured subbands).

[0154] The RO described in the embodiments of the present application can also include RO resources that span at least two types of time units. If an RO spans different time domain unit types (such as UL SB and uplink time domain units), the network can configure this RO to belong to a determined time domain unit type. For example, an RO belonging to UL SB or an RO belonging to an uplink time domain unit.

[0155] Based on the above - mentioned situations, there can be multiple combinations for the mapping from downlink signals to uplink signals.

[0156] In some embodiments, the time units described in the embodiments of the present application include but are not limited to at least one of the following:

[0157] OFDM symbols, time slots, sub - frames, frames, microseconds, milliseconds, seconds, minutes, hours, days.

[0158] The duplex mode described in the embodiments of the present application may be, for example, an enhanced duplex mode, or cross duplex (XDD), enhanced full duplex, enhanced full duplex mode. The embodiments of the present application do not limit this. The duplex mode described in the embodiments of the present application may be expressed as: supporting an uplink sub-band on a downlink time unit, or supporting a downlink sub-band on an uplink time unit, or supporting at least one of an uplink sub-band and a downlink sub-band on a flexible time unit, or uplink or downlink resource transmission on a set of at least two of the above three time units.

[0159] In the embodiments of the present application, the type of uplink signal resource may also be replaced with the type of uplink signal resource set.

[0160] In the embodiments of the present application, the terminal supports full duplex, and the network-side device supports full duplex; or, the terminal supports half duplex, and the network-side device supports full duplex.

[0161] Exemplarily, the terminal supporting half duplex may mean that the terminal can only perform downlink reception (such as receiving a DL signal or a DL channel) or uplink transmission (such as transmitting a UL signal or a UL channel) on a time unit.

[0162] Exemplarily, the terminal supporting full duplex may mean that it can simultaneously perform uplink transmission (such as transmitting a UL signal or a UL channel) and downlink reception (such as receiving a DL signal or a DL channel) on a time unit.

[0163] In the embodiments of the present application, the network-side device adopting the full duplex mode can achieve the purposes of enhanced coverage, reduced transmission delay, and improved resource utilization efficiency. When the terminal adopts the full duplex mode, it can also improve the DL or UL throughput while obtaining the above gains.

[0164] In some embodiments, when using the full duplex mode, a guard band needs to be reserved between UL transmission and DL transmission, for example, reserving GB to achieve frequency isolation and reduce self-interference. Since the self-interference cancellation ability of the terminal is weaker than that of the network-side device, the GB reserved by the terminal when adopting the front duplex mode is larger than that reserved by the network-side device. That is, the terminal requires more reserved physical resource blocks (PRBs) as the guard band.

[0165] Exemplarily, as Figure 7 in (a) is the sub-band and GB configuration of the network-side device in the full duplex mode, that is, the time-frequency resources where the UL SB, DL SB, and GB of the network-side device are located. In the UL SB, the network-side device receives the UL channel or UL signal sent by the terminal. In the DL SB, the network-side device sends the DL channel or DL signal to the terminal. The DL transmission of the network-side device will cause self-interference to the UL reception.

[0166] Exemplarily, as Figure 7 in (b) is the sub-band and GB configuration of the terminal side in full-duplex mode, that is, the time-frequency resources where the UL SB, DL SB, and GB configured by the network-side device for the terminal are located. The UL transmission of the terminal will cause self-interference to the DL reception.

[0167] In some embodiments, the size of the GB reserved for the terminal is related to the terminal's capabilities. For example, the GB reserved for a terminal with strong self-interference cancellation ability is smaller than the GB reserved for a terminal with weak self-interference cancellation ability.

[0168] In some embodiments, the network-side device may notify the duplex mode in System Information Block 1 (SIB 1) or Master Information Block (MIB), including at least one of the following: duplex configuration period, duplex mode period, uplink-downlink configuration (UL-DL config common).

[0169] Exemplarily, taking the uplink signal resource as RO, as Figure 8 shown, the uplink-downlink configuration (UL-DL configcommon) is DDDDU, and the period is 5 ms. The duplex configuration is 11100 00000, the mode is DUD, and the period is 10 ms. The duplex mode period is 10 ms (for different mode periods, the enhanced duplex mode can be changed, for example, DUD, DU, UD...). Among them, D represents downlink, and U represents uplink. Optionally, for each duplex mode period, the valid RO may be different.

[0170] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following:

[0171] Duplex configuration period;

[0172] Duplex mode period;

[0173] Mapping mode period, which is the time when all types of uplink signal resources are at least mapped once by all pre-configured downlink signals;

[0174] Uplink-downlink configuration;

[0175] Specific time unit, which is used for the mapping of the downlink signal to the uplink signal resource;

[0176] Mapping period of the downlink signal to the uplink signal resource;

[0177] Association period of the downlink signal to the uplink signal resource;

[0178] Association mode period of downlink signal to uplink signal resource.

[0179] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO as an example, assuming that 8 SSBs are pre-configured, in this case, the mapping mode period can be the time when the ROs on the uplink sub-bands and the ROs on the uplink time units are each mapped by at least one of the 8 SSBs.

[0180] Exemplarily, the mapping period of the downlink signal to the uplink signal resource can refer to the relevant description of the mapping period of the above SSB to RO. For the sake of brevity, it will not be elaborated here.

[0181] Exemplarily, the association period of the downlink signal to the uplink signal resource can refer to the relevant description of the association period of the above SSB to RO. For the sake of brevity, it will not be elaborated here.

[0182] Exemplarily, the association mode period of the downlink signal to the uplink signal resource can refer to the relevant description of the association mode period of the above SSB to RO. For the sake of brevity, it will not be elaborated here.

[0183] Optionally, the mapping mode period can be agreed upon by the protocol, or the mapping mode period is configured by the network side.

[0184] Optionally, the specific time unit can be a time unit dedicated to the mapping of the downlink signal to the uplink signal resource.

[0185] Optionally, the specific time unit can be agreed upon by the protocol, or the specific time unit is configured by the network side.

[0186] Optionally, the mapping period of the downlink signal to the uplink signal resource can be agreed upon by the protocol, or the mapping period of the downlink signal to the uplink signal resource is configured by the network side.

[0187] Optionally, the association period of the downlink signal to the uplink signal resource can be agreed upon by the protocol, or the association period of the downlink signal to the uplink signal resource is configured by the network side.

[0188] Optionally, the association mode period of the downlink signal to the uplink signal resource can be agreed upon by the protocol, or the association mode period of the downlink signal to the uplink signal resource is configured by the network side.

[0189] Specifically, for example, the mapping of the downlink signal to the uplink signal resource is associated with the duplex configuration period, so that a time window can be determined based on the duplex configuration period, and the mapping of the downlink signal to the uplink signal resource within this time window is considered. Optionally, within this time window, the mapping order of the downlink signal to the uplink signal resource can be agreed upon by the protocol, or the mapping order of the downlink signal to the uplink signal resource is configured by the network side.

[0190] Specifically, for example, the mapping from downlink signals to uplink signal resources is associated with the duplex mode period, so that a time window can be determined based on the duplex mode period, and the mapping from downlink signals to uplink signal resources within this time window can be considered. Optionally, within this time window, the mapping order from downlink signals to uplink signal resources can be specified by the protocol, or the mapping order from downlink signals to uplink signal resources is configured by the network side.

[0191] Specifically, for example, the mapping from downlink signals to uplink signal resources is associated with the mapping mode period, so that a time window can be determined based on the mapping mode period, and the mapping from downlink signals to uplink signal resources within this time window can be considered. Optionally, within this time window, the mapping order from downlink signals to uplink signal resources can be specified by the protocol, or the mapping order from downlink signals to uplink signal resources is configured by the network side.

[0192] Specifically, for example, the mapping from downlink signals to uplink signal resources is associated with the uplink-downlink configuration, so that a time window can be determined based on the uplink-downlink configuration, and the mapping from downlink signals to uplink signal resources within this time window can be considered. Optionally, within this time window, the mapping order from downlink signals to uplink signal resources can be specified by the protocol, or the mapping order from downlink signals to uplink signal resources is configured by the network side.

[0193] Specifically, for example, the mapping from downlink signals to uplink signal resources is associated with a specific time unit, so that a time window can be determined based on the specific time unit, and the mapping from downlink signals to uplink signal resources within this time window can be considered. Optionally, within this time window, the mapping order from downlink signals to uplink signal resources can be specified by the protocol, or the mapping order from downlink signals to uplink signal resources is configured by the network side.

[0194] Specifically, for example, the mapping from downlink signals to uplink signal resources is associated with the mapping period from downlink signals to uplink signal resources, so that a time window can be determined based on the mapping period from downlink signals to uplink signal resources, and the mapping from downlink signals to uplink signal resources within this time window can be considered. Optionally, within this time window, the mapping order from downlink signals to uplink signal resources can be specified by the protocol, or the mapping order from downlink signals to uplink signal resources is configured by the network side.

[0195] Specifically, for example, the mapping from downlink signals to uplink signal resources is associated with the association period of downlink signals to uplink signal resources, so that a time window can be determined based on the association period of downlink signals to uplink signal resources, and the mapping from downlink signals to uplink signal resources within this time window can be considered. Optionally, within this time window, the mapping order from downlink signals to uplink signal resources can be specified by the protocol, or the mapping order from downlink signals to uplink signal resources is configured by the network side.

[0196] Specifically, for example, the mapping from the downlink signal to the uplink signal resource is periodically associated with the association pattern of the downlink signal to the uplink signal resource, so that a time window can be determined based on the association pattern period of the downlink signal to the uplink signal resource, and the mapping from the downlink signal to the uplink signal resource within this time window can be considered. Optionally, within this time window, the mapping order of the downlink signal to the uplink signal resource can be agreed upon by the protocol, or the mapping order of the downlink signal to the uplink signal resource is configured by the network side.

[0197] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is determined based on the uplink signal resources valid within at least one time-domain resource;

[0198] wherein, the at least one time-domain resource includes at least one of the uplink subbands and uplink time units determined based on the uplink-downlink configuration, duplex configuration period, or duplex mode period within the first time window;

[0199] wherein, the first time window is associated with one of the following: the mapping mode period, the specific time unit, the mapping period of the downlink signal to the uplink signal resource, the association period of the downlink signal to the uplink signal resource, the association pattern period of the downlink signal to the uplink signal resource.

[0200] Optionally, within the first time window, the mapping order of the downlink signal to the uplink signal resource can be agreed upon by the protocol, or the mapping order of the downlink signal to the uplink signal resource is configured by the network side.

[0201] In some embodiments, within different duplex mode periods, the valid uplink signal resources are different.

[0202] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO as an example, there is a one-to-one mapping between SSB and RO. Assume that the PRACH configuration period is 10 ms. The SSB period is 80 ms, the minimum association periods for SSB to be mapped to RO are 10 ms, 20 ms, and 40 ms, and the association pattern period for SSB to be mapped to RO is 160 ms. The number of actually transmitted SSBs within one SSB period is 8. As Figure 9As shown, there are 8 and 6 valid ROs in the even - numbered and odd - numbered PRACH configuration periods respectively, and there are 0 valid ROs in the PRACH configuration period containing the SSB. The association mode period (160 ms) consists of 6 association periods. In the first 150 ms (corresponding to radio frames numbered 0 - 14), each association period successively includes 4, 1, 2, 4, 2, and 2 PRACH configuration periods; Radio frame 3 is an odd - numbered radio frame with 6 ROs. However, according to the definition of the association period of SSB mapped to RO, the total number of valid ROs in radio frames 0, 1, 2, and 3 must be a multiple of 8 and the association period of SSB mapped to RO must be an integer multiple of the PRACH configuration period. So, radio frame 3 can only have 2 valid ROs; Similarly, radio frames 6 and 14 only have 2 valid ROs, and radio frame 10 only has 4 valid ROs. Specifically, Figure 9 In radio frame 2, two ROs (in the front) belong to mapping cycle 1, and 6 ROs belong to mapping cycle 2; In radio frame 9, two ROs (in the front) belong to mapping cycle 5, and 4 ROs belong to mapping cycle 6. For the convenience of description, the mapping cycles corresponding to two SSBs use a unified numbering. In practice, the mapping cycles corresponding to different SSBs can use separate numbering.

[0203] Exemplarily, taking the downlink signal as the SSB and the uplink signal resource as the RO as an example, within a mapping period of SSB to RO, or, within an association period of SSB to RO, or, within an association mode period of SSB to RO, the mapping of SSB to RO is determined based on the uplink sub - band (UL SB) and the valid ROs within the uplink time unit determined by the uplink - downlink configuration or the duplex configuration period or the duplex mode period. Optionally, within time window i (associated with the mapping period of SSB to RO or the association period of SSB to RO or the association mode period of SSB to RO), the mapping order of SSB to RO is agreed by the protocol or configured by the network side.

[0204] For example, as Figure 10 shown, within time window i, the mapping of SSB to RO is in the following order:

[0205] The Preamble in each RO increases in the order of Preamble index;

[0206] When RACH FDM is configured (i.e., multiple ROs in the frequency domain), it increases according to the RO index in the frequency domain;

[0207] When multiple ROs are included in a configured PRACH time slot, the RO indexes within the PRACH time slot increase incrementally.

[0208] When multiple PRACH time slots are configured, the PRACH time slot indexes increase incrementally.

[0209] Exemplarily, taking the following downlink signal as SSB and the uplink signal resource as RO as an example, within a mapping mode period, the mapping from SSB to RO is determined based on the uplink subbands (ULSBs) and the valid ROs within the uplink time units determined by the uplink-downlink configuration or the duplex configuration period or the duplex mode period. It should be noted that for the cases with different mapping orders from SSB to RO, a mapping mode period is defined, and the mapping mode period depends at least on the duration ensuring that both types of ROs can be mapped by all SSBs at least once.

[0210] Specifically, for example, as Figure 11 shown, the mapping order from SSB to RO within time window i is different from that within time window i + 1. For example, sequential mapping is adopted within time window i, that is, SSB i is mapped to RO i, SSB i + 1 is mapped to RO i + 1, SSB i + 2 is mapped to RO i + 2, and SSB i + 3 is mapped to RO i + 3. For example, reverse mapping is adopted within time window i + 1, that is, SSB i + 3 is mapped to RO i, SSB i + 2 is mapped to RO i + 1, SSB i + 1 is mapped to RO i + 2, and SSB i is mapped to RO i + 3. In this way, each SSB can be mapped to two types of ROs. When associating SSB with RO, different SSB candidates may be selected within different time windows.

[0211] Exemplarily, taking the following downlink signal as SSB and the uplink signal resource as RO as an example, the network side can configure different ssb-perRACH-Occasion, CB-PreamblesPerSSB, or ssb-perRACH-OccasionAndCB-PreamblesPerSSB for terminals with different capabilities. For example, there are two SSBs, two associated ROs for the UL SB, and two associated ROs for the uplink time unit. As Figure 12 shown, the valid ROs used by UEs that do not support enhanced duplex capabilities are: RO1 - 2 and RO2 - 2; ssb-perRACH-Occasion = 1. As Figure 12 shown, the valid ROs that can be used by UEs that support enhanced duplex capabilities can be: RO1 - 1, RO2 - 1, RO1 - 2, RO2 - 2; ssb-perRACH-Occasion = 1 / 2.

[0212] In some embodiments, when the uplink signal resources on the uplink sub-bands and the uplink signal resources on the uplink time units are configured independently, the correspondence between the downlink signals and the uplink signal resources includes at least one of the following:

[0213] All pre-configured downlink signals are mapped to the uplink signal resources on the uplink sub-bands and the uplink signal resources on the uplink time units;

[0214] All pre-configured downlink signals are mapped to the uplink signal resources on the uplink sub-bands;

[0215] All pre-configured downlink signals are mapped to the uplink signal resources on the uplink time units.

[0216] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO, the ROs on the UL SB and the ROs on the uplink time units can be configured independently. For example, as Figure 12 shown, all SSBs are mapped to two types of ROs, or, all SSBs are mapped to the ROs on the UL SB, or, all SSBs are mapped to the ROs on the uplink time units. One mapping method is to first map all SSBs to the valid ROs on the UL time units, and then map all SSBs to the ROs on the UL SB.

[0217] In some embodiments, when an uplink configuration includes the uplink signal resources on the uplink sub-bands and the uplink signal resources on the uplink time units, the correspondence between the downlink signals and the uplink signal resources includes:

[0218] A downlink signal is mapped to at least one of the uplink signal resources on the uplink sub-bands and the uplink signal resources on the uplink time units.

[0219] In some embodiments, when an uplink configuration includes the uplink signal resources on the uplink sub-bands and the uplink signal resources on the uplink time units, the correspondence between the downlink signals and the uplink signal resources at least includes: all pre-configured downlink signals are mapped to all the uplink signal resources on the uplink time units.

[0220] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO, a PRACH configuration includes the ROs on the ULSB and the ROs on the uplink time units. Among them, an SSB is mapped to at least one of the ROs on the UL SB and the ROs on the uplink time units. Optionally, at least all SSBs are supported to be mapped to all the ROs on the uplink time units. As Figure 13 shown, SSB3 is only mapped to the ROs on the uplink time units.

[0221] In some embodiments, if the signal quality of at least two downlink signals is greater than or equal to a first threshold, the terminal selects the downlink signal corresponding to the uplink signal resource it supports. Optionally, the first threshold is agreed upon by the protocol, or the first threshold is configured by the network side.

[0222] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO as an example, when the terminal measures that the signal quality of multiple SSBs is greater than or equal to the first threshold, the terminal selects the SSB associated with the RO supported by its capabilities according to its capabilities. For example, as Figure 13 shown, if the terminal does not support SSB 1 of the RO mapped to the UL SB, then it will select other SSBs (SSB 2 or SSB 3) of the RO mapped to the uplink time unit.

[0223] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO as an example, if the signal quality of multiple SSBs is greater than or equal to the first threshold and their corresponding ROs are available, the network side can configure the terminal to select the SSB according to the RO. Optionally, in a time window, the network side can configure the terminal to preferentially select the SSB corresponding to the RO of the UL SB, and then use the SSB corresponding to the RO of the uplink time unit.

[0224] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO as an example, within a time window, if an SSB is associated with multiple types of ROs (located in the UL SB or in the uplink time unit). Or, multiple SSBs are associated with multiple types of ROs. The network side can configure the order for the terminal to select the RO, for example, preferentially select the RO of the UL SB, and then select the RO of the UL time domain unit; or, preferentially select the RO of the uplink time unit, and then select the RO of the UL SB.

[0225] In some embodiments, before the terminal determines the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located, the mapping method 200 from the downlink signal to the uplink signal resource further includes:

[0226] The terminal receives configuration information from the network side device;

[0227] wherein, the configuration information is used to configure the time domain unit type where the uplink signal resource corresponding to the downlink signal is located based on the time domain unit type where the downlink signal is located.

[0228] In some embodiments, the configuration information is sent through at least one of the following signaling:

[0229] System messages (such as System Information Block (SIB) or Master Information Block (MIB), etc.), Radio Resource Control (RRC) signaling, Media Access Control Control Element (MAC CE), Downlink Control Information (DCI).

[0230] Optionally, the correspondence between downlink signals and uplink signal resources includes at least one of the following:

[0231] The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink time unit;

[0232] The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink sub-band;

[0233] The downlink signal on the downlink time unit is mapped to the uplink signal resources on the uplink time unit and the uplink sub-band;

[0234] The downlink signal on the downlink sub-band is mapped to the uplink signal resource on the uplink time unit;

[0235] The downlink signal on the downlink sub-band is mapped to the uplink signal resource on the uplink sub-band;

[0236] The downlink signal on the downlink sub-band is mapped to the uplink signal resources on the uplink time unit and the uplink sub-band.

[0237] Exemplarily, taking the downlink signal as SSB and the uplink signal resource as RO, the network side can configure to determine the time domain unit type of the RO mapped by the SSB based on the time domain unit type where the SSB is located. For example, the SSB in the downlink time unit (such as a time slot or a symbol) can be mapped only to the RO in the uplink time unit, or the SSB in the downlink time unit (such as a time slot or a symbol) is only mapped to the RO of the UL SB, or the SSB in the downlink time unit (such as a time slot or a symbol) is simultaneously mapped to two types of ROs, that is, the RO of the ULSB and the RO of the uplink time unit. Another example, the SSB of the DL SB can be mapped only to the RO of the UL SB. Another example, the SSB of the DL SB can be mapped to two types of ROs, that is, the RO of the ULSB and the RO of the uplink time unit. Specifically, for example, as Figure 13As shown, some SSBs are only mapped to UL SBs (SSB 1), some SSBs are only mapped to uplink time units (SSB 3), and some SSBs can be mapped to both UL SBs and uplink time units (SSB 3).

[0238] In some embodiments, taking the downlink signal as SSB and the uplink signal resource as RO as an example, the mapping from SSB to RO can be divided into more types. For network-side devices and terminals supporting SBFD, there are usually 4 types of time-domain units (symbols or slots), as shown in Figure 14(a), DL symbols, DL symbols configured with UL SBs, UL symbols configured with DL SBs, and UL symbols. For a configured RO resource (set) (PRACH occasions Physical random-access channel occasions), there may be 2 types of configuration situations, namely Situation 1: The RO resource (set) is configured in a UL sub-band (which can be in a UL symbol or a DL symbol), for example, type A; Situation 2: The RO resource (set) is configured in a UL symbol (without a configured DL sub-band), for example, type B (Type B).

[0239] Furthermore, the configured RO resource (set) can be further divided according to whether it overlaps with the SSB.

[0240] Configured RO resource (set) / Type 1: The RO resource (set) is configured in a UL SB in a DL symbol where there is an SSB / public DL channel, that is, it is time-domain overlapped with the SSB / public DL channel. At this time, the uplink transmission of one UE will interfere with the reception of the SSB of other UEs, that is, cross-link interference. If the UE uses this SSB for measurement or decodes the public DL channel, it will also receive self-interference.

[0241] Configured RO resource (set) / Type 2: The RO resource (set) is configured in a UL SB in a DL symbol where there is no SSB / public DL channel, that is, it is not time-domain overlapped with the SSB / public DL channel. At this time, the uplink transmission of one UE will interfere with the reception of the DL channel or signal of other UEs, that is, the Physical Downlink Control Channel (PDCCH), the Physical Downlink Shared Channel (PDSCH), the Channel State Information Reference Signal (CSI-RS), etc.

[0242] Configured RO resource (set) / Type 3: The RO resource (set) is configured in the UL SB of a UL symbol, and the interference situation is similar to that of type 2.

[0243] Configured RO resource (set) / Type 4: The RO resource (set) is configured in a UL symbol, and there is no cross-link interference at this time.

[0244] In some embodiments, taking the following line signal as SSB and the uplink signal resource as RO as an example, different RO types can also be associated with different preamble formats. Different preamble formats can have different lengths. As shown in Figure 14(b), the length of preamble format A is greater than that of preamble format B, which can provide better coverage performance. The mapping from SSB to different RO types can be either separate mapping or joint mapping.

[0245] For separate mapping, first map all SSBs to RO type A associated with preamble format A, and then map all SSBs to RO type B with preamble format B.

[0246] For joint mapping, all SSBs will be mapped to at least one RO type, and each RO type is associated with a preamble format. Different ROs can be associated with different preamble formats.

[0247] Optionally, if ROs of different types overlap in the time domain or are close to each other, as shown in Figure 14(c).

[0248] The network-side device can configure overlapping RO types and which RO type has a higher priority. For example, if the network-side device configures that RO type A associated with preamble format A has a higher priority, then the RO type B with a lower priority can be processed in at least one of the following methods 1 to 4.

[0249] Method 1: Discard the ROs that overlap with the high-priority RO, and skip the RO numbers of the ROs that overlap with the high-priority RO. For example, if ROs 2 to 3 of type B at time A overlap with ROs of type A, then at time A, ROs 1 and 4 of type B are renumbered as ROs 1 and 2.

[0250] Method 2: Discard the ROs that overlap with the high-priority RO and the subsequent ROs (in the direction of increasing frequency), that is, at time A, only RO1 of type B is a valid RO.

[0251] Method 3: For the time period of a RO, if at least one RO overlaps with a high-priority RO, then all ROs in the time period of this RO are invalid. That is, at time A, ROs 1 to 4 of RO type B are all invalid.

[0252] Method 4: ROs with a distance less than X symbols from a high-priority RO are all invalid. The distance Y between RO type A and time B is less than X (X is configured by the network side), and the RO of RO type B at time B is an invalid RO.

[0253] In some embodiments, taking the downlink signal as SSB and the uplink signal resource as RO as an example, if the Synchronization Signal Reference Signal Received Power (SS-RSRP) of a certain SSB is greater than rsrp-ThresholdSSB, then the SSB with a value greater than rsrp-ThresholdSSB is selected; otherwise, any SSB is selected (the SS-RSRP of multiple SSBs is greater than rsrp-ThresholdSSB).

[0254] When selecting CSI-RS, the Channel State Information Reference Signal Received Power (CSI-RSRP) of the CSI-RS is compared with the parameter rsrp-ThresholdCSI-RS. If the CSI-RSRP of a certain CSI-RS is greater than rsrp-ThresholdCSI-RS, then the CSI-RS with a value greater than rsrp-ThresholdCSI-RS is selected.

[0255] In some embodiments, taking the downlink signal as SSB and the uplink signal resource as RO as an example, if an SSB maps at least one RO type, each RO type is associated with a preamble format, and different ROs can be associated with different preamble formats. The terminal can select ROs based on at least one of the following methods:

[0256] Location threshold information;

[0257] TA threshold;

[0258] Network side indication.

[0259] The above information (i.e., location threshold information, TA threshold, or network indication) can be configured through semi-static or dynamic signaling (such as SIB or RRC, etc.) of the network side device.

[0260] If the SSB is mapped to at least one type of RO, each type of RO is associated with a preamble format, and different ROs can be associated with different preamble formats. A method for selecting an SSB is as follows:

[0261] Step 1: The terminal first selects an SSB set A that satisfies the rsrp-threshold;

[0262] Step 2: The terminal determines, from the SSB set A, an SSB set B that is associated with an RO type that includes a specific preamble format (the preamble format that the terminal expects to select);

[0263] Step 3: The terminal selects the RO associated with the SSB from set B for random access.

[0264] Therefore, in the embodiments of the present application, the terminal can determine the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located, and the resource type where the uplink signal resource is located can support the duplex mode, thereby improving the system resource utilization rate and reducing the delay, and can also improve the uplink coverage.

[0265] As described above in conjunction with Figures 6 to 1 4, the embodiments of the terminal side of the present application are described in detail. Below, in conjunction with Figure 15 , the embodiments of the network side of the present application are described in detail. It should be understood that the embodiments of the network side and the embodiments of the terminal side correspond to each other, and similar descriptions can refer to the embodiments of the terminal side.

[0266] Figure 15 is a schematic flowchart of a mapping method 300 from a downlink signal to an uplink signal resource according to an embodiment of the present application. As Figure 15 shown, the mapping method 300 from a downlink signal to an uplink signal resource may include at least some of the following:

[0267] S310, The network side device sends configuration information to the terminal;

[0268] Among them, the configuration information is used to configure the time domain unit type where the uplink signal resource corresponding to the downlink signal is located based on the time domain unit type where the downlink signal is located;

[0269] Among them, the resource type where the uplink signal resource is located includes at least one of the following:

[0270] Uplink sub-band, uplink time unit.

[0271] It should be understood that Figure 15Shows the steps or operations of the mapping method 300 from a downlink signal to an uplink signal resource. However, these steps are only examples, and embodiments of the present application may also perform other operations or Figure 15 variations of each operation in

[0272] In some embodiments, the configuration information is sent through at least one of the following signaling:

[0273] System message (such as SIB or MIB, etc.), RRC signaling, MAC CE, DCI.

[0274] In some embodiments, the correspondence between the downlink signal and the uplink signal resource includes at least one of the following:

[0275] The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink time unit;

[0276] The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink sub-band;

[0277] The downlink signal on the downlink time unit is mapped to the uplink signal resources on the uplink time unit and the uplink sub-band;

[0278] The downlink signal on the downlink sub-band is mapped to the uplink signal resource on the uplink time unit;

[0279] The downlink signal on the downlink sub-band is mapped to the uplink signal resource on the uplink sub-band;

[0280] The downlink signal on the downlink sub-band is mapped to the uplink signal resources on the uplink time unit and the uplink sub-band.

[0281] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following:

[0282] Duplex configuration period;

[0283] Duplex mode period;

[0284] Mapping mode period, which is the time when all types of the uplink signal resources are pre-configured and all the downlink signals are mapped at least once;

[0285] Uplink and downlink configuration;

[0286] Specific time unit, which is used for the mapping of the downlink signal to the uplink signal resource;

[0287] The mapping period of the downlink signal to the uplink signal resource;

[0288] The association period of the downlink signal to the uplink signal resource;

[0289] The association mode period of the downlink signal to the uplink signal resource.

[0290] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is determined based on the uplink signal resource valid within at least one time domain resource;

[0291] Wherein, the at least one time domain resource includes at least one of an uplink sub-band and an uplink time unit determined based on an uplink-downlink configuration or a duplex configuration period or a duplex mode period within a first time window;

[0292] Wherein, the first time window is associated with one of the following: the mapping mode period, the specific time unit, the mapping period of the downlink signal to the uplink signal resource, the association period of the downlink signal to the uplink signal resource, the association mode period of the downlink signal to the uplink signal resource.

[0293] In some embodiments, within different duplex mode periods, the valid uplink signal resources are different.

[0294] In some embodiments, in the case where the uplink signal resource located on the uplink sub-band and the uplink signal resource located on the uplink time unit are independently configured, the correspondence between the downlink signal and the uplink signal resource includes at least one of the following:

[0295] All pre-configured downlink signals are mapped to the uplink signal resources located on the uplink sub-band and the uplink signal resources located on the uplink time unit;

[0296] All pre-configured downlink signals are mapped to the uplink signal resources located on the uplink sub-band;

[0297] All pre-configured downlink signals are mapped to the uplink signal resources located on the uplink time unit.

[0298] In some embodiments, in the case where an uplink configuration includes the uplink signal resource located on the uplink sub-band and the uplink signal resource located on the uplink time unit, the correspondence between the downlink signal and the uplink signal resource includes:

[0299] One downlink signal is mapped to at least one of the uplink signal resource located on the uplink sub-band and the uplink signal resource located on the uplink time unit.

[0300] In some embodiments, the mapping of the downlink signal to the uplink signal resource at least includes: all pre-configured downlink signals are mapped to all uplink signal resources located on the uplink time unit.

[0301] In some embodiments, the downlink signal includes at least one of the following: Synchronization Signal Block (SSB), Channel State Information Reference Signal (CSI-RS);

[0302] The uplink signal resource includes at least one of the following: Random Access Opportunity (RO), Configured Grant Physical Uplink Shared Channel (CG-PUSCH) resource, Sounding Reference Signal (SRS) resource.

[0303] Therefore, in the embodiments of the present application, the terminal can determine the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located, and the resource type where the uplink signal resource is located can support the duplex mode, thereby improving the system resource utilization rate, reducing the latency, and also improving the uplink coverage.

[0304] For the mapping method of downlink signal to uplink signal resource provided by the embodiments of the present application, the execution subject can be a mapping device for downlink signal to uplink signal resource, or a processing unit in the mapping device for downlink signal to uplink signal resource that executes the mapping method of downlink signal to uplink signal resource. In the embodiments of the present application, taking the mapping device for downlink signal to uplink signal resource as an example to execute the mapping method of downlink signal to uplink signal resource, the mapping device for downlink signal to uplink signal resource provided by the embodiments of the present application is described.

[0305] Figure 16 Fig. shows a schematic block diagram of a mapping device 400 for downlink signal to uplink signal resource according to an embodiment of the present application. As Figure 16 shown, the mapping device 400 for downlink signal to uplink signal resource includes:

[0306] A processing unit 410, configured to determine the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located;

[0307] A transceiver unit 420, configured to send an uplink signal according to the uplink signal resource;

[0308] Wherein, the resource type where the uplink signal resource is located includes at least one of the following:

[0309] Uplink sub-band, uplink time unit.

[0310] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following:

[0311] Duplex configuration period;

[0312] Duplex mode period;

[0313] Mapping mode period, where the mapping mode period is the time when all types of the uplink signal resources are at least mapped once by all the pre-configured downlink signals;

[0314] Uplink and downlink configuration;

[0315] A specific time unit for mapping the downlink signal to the uplink signal resource;

[0316] The mapping period of the downlink signal to the uplink signal resource;

[0317] The association period of the downlink signal to the uplink signal resource;

[0318] The association mode period of the downlink signal to the uplink signal resource.

[0319] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is determined based on the uplink signal resources valid within at least one time domain resource;

[0320] Wherein, the at least one time domain resource includes at least one of an uplink sub-band and an uplink time unit determined based on the uplink and downlink configuration, the duplex configuration period, or the duplex mode period within a first time window;

[0321] Wherein, the first time window is associated with one of the following: the mapping mode period, the specific time unit, the mapping period of the downlink signal to the uplink signal resource, the association period of the downlink signal to the uplink signal resource, the association mode period of the downlink signal to the uplink signal resource.

[0322] In some embodiments, within different duplex mode periods, the valid uplink signal resources are different.

[0323] In some embodiments, in the case where the uplink signal resources on the uplink sub-band and the uplink signal resources on the uplink time unit are independently configured, the correspondence between the downlink signal and the uplink signal resource includes at least one of the following:

[0324] All pre-configured downlink signals are mapped to the uplink signal resources on the uplink sub-band and the uplink signal resources on the uplink time unit;

[0325] All pre-configured downlink signals are mapped to the uplink signal resources on the uplink sub-band;

[0326] All pre-configured downlink signals are mapped to the uplink signal resources on the uplink time unit.

[0327] In some embodiments, when an uplink configuration includes the uplink signal resources located on uplink sub - bands and the uplink signal resources located on uplink time units, the correspondence relationship between the downlink signals and the uplink signal resources includes:

[0328] One of the downlink signals is mapped to at least one of the uplink signal resources located on the uplink sub - bands and the uplink signal resources located on the uplink time units.

[0329] In some embodiments, the correspondence relationship between the downlink signals and the uplink signal resources at least includes: all pre - configured downlink signals are mapped to all the uplink signal resources located on the uplink time units.

[0330] In some embodiments, if the signal quality of at least two of the downlink signals is greater than or equal to the first threshold, the processing unit 410 is further configured to select the downlink signals corresponding to the uplink signal resources it supports.

[0331] In some embodiments, before the mapping device 400 of the downlink signals to the uplink signal resources determines the uplink signal resources corresponding to the downlink signals according to the resource type where the downlink signals are located, the transceiver unit 420 is further configured to receive configuration information from a network - side device;

[0332] wherein the configuration information is used to configure the time - domain unit type of the uplink signal resources corresponding to the downlink signals according to the time - domain unit type where the downlink signals are located.

[0333] In some embodiments, the correspondence relationship between the downlink signals and the uplink signal resources includes at least one of the following:

[0334] The downlink signals on the downlink time units are mapped to the uplink signal resources on the uplink time units;

[0335] The downlink signals on the downlink time units are mapped to the uplink signal resources on the uplink sub - bands;

[0336] The downlink signals on the downlink time units are mapped to the uplink signal resources on the uplink time units and the uplink sub - bands;

[0337] The downlink signals on the downlink sub - bands are mapped to the uplink signal resources on the uplink time units;

[0338] The downlink signals on the downlink sub - bands are mapped to the uplink signal resources on the uplink sub - bands;

[0339] The downlink signals on the downlink sub - bands are mapped to the uplink signal resources on the uplink time units and the uplink sub - bands.

[0340] In some embodiments, the downlink signal includes at least one of the following: Synchronization Signal Block (SSB), Channel State Information Reference Signal (CSI-RS);

[0341] The uplink signal resource includes at least one of the following: Random Access Opportunity (RO), Configured Grant Physical Uplink Shared Channel (CG-PUSCH) resource, Sounding Reference Signal (SRS) resource.

[0342] In some embodiments, the above transceiver unit 420 may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-chip. The processing unit 410 may be embedded in or independent of the processor of the terminal in hardware form.

[0343] It should be understood that the mapping device 400 from downlink signal to uplink signal resource according to the embodiments of the present application may correspond to the terminal in the method embodiments of the present application, and each unit in the mapping device 400 from downlink signal to uplink signal resource respectively serves to implement Figure 6 the corresponding processes of the terminal in the method 200 shown. For the sake of brevity, details are not described herein again.

[0344] Therefore, in the embodiments of the present application, the terminal can determine the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located, and the resource type where the uplink signal resource is located can support the duplex mode, thereby improving the system resource utilization rate and reducing the latency, and also improving the uplink coverage.

[0345] Figure 17 Fig. shows a schematic block diagram of a mapping device 500 from downlink signal to uplink signal resource according to an embodiment of the present application. As Figure 17 shown, the mapping device 500 from downlink signal to uplink signal resource includes:

[0346] A transceiver unit 510, configured to send configuration information to the terminal;

[0347] wherein, the configuration information is used to configure the time domain unit type of the uplink signal resource corresponding to the downlink signal based on the time domain unit type where the downlink signal is located;

[0348] wherein, the resource type where the uplink signal resource is located includes at least one of the following:

[0349] Uplink sub-band, uplink time unit.

[0350] In some embodiments, the correspondence between the downlink signal and the uplink signal resource includes at least one of the following:

[0351] The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink time unit;

[0352] The downlink signal in the downlink time unit is mapped to the uplink signal resource on the uplink sub-band;

[0353] The downlink signal in the downlink time unit is mapped to the uplink signal resource on the uplink time unit and the uplink sub-band;

[0354] The downlink signal on the downlink sub-band is mapped to the uplink signal resource on the uplink time unit;

[0355] The downlink signal on the downlink sub-band is mapped to the uplink signal resource on the uplink sub-band;

[0356] The downlink signal on the downlink sub-band is mapped to the uplink signal resource on the uplink time unit and the uplink signal resource on the uplink sub-band.

[0357] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following:

[0358] Duplex configuration period;

[0359] Duplex mode period;

[0360] Mapping mode period, where the mapping mode period is the time when all types of the uplink signal resources are pre-configured and all the downlink signals are mapped at least once;

[0361] Uplink-downlink configuration;

[0362] Specific time unit, which is used for the mapping of the downlink signal to the uplink signal resource;

[0363] The mapping period of the downlink signal to the uplink signal resource;

[0364] The association period of the downlink signal to the uplink signal resource;

[0365] The association mode period of the downlink signal to the uplink signal resource.

[0366] In some embodiments, the correspondence between the downlink signal and the uplink signal resource is determined based on the uplink signal resource valid within at least one time domain resource;

[0367] Wherein, the at least one time domain resource includes at least one of the uplink sub-band and the uplink time unit determined based on the uplink-downlink configuration, the duplex configuration period, or the duplex mode period within the first time window;

[0368] Wherein, the first time window is associated with one of the following: the mapping mode period, the specific time unit, the mapping period of the downlink signal to the uplink signal resource, the association period of the downlink signal to the uplink signal resource, the association mode period of the downlink signal to the uplink signal resource.

[0369] In some embodiments, within different duplex mode periods, the effective uplink signal resources are different.

[0370] In some embodiments, when the uplink signal resources located on the uplink sub - band and the uplink signal resources located on the uplink time unit are configured independently, the correspondence between the downlink signal and the uplink signal resources includes at least one of the following:

[0371] All pre - configured downlink signals are mapped to the uplink signal resources located on the uplink sub - band and the uplink signal resources located on the uplink time unit;

[0372] All pre - configured downlink signals are mapped to the uplink signal resources located on the uplink sub - band;

[0373] All pre - configured downlink signals are mapped to the uplink signal resources located on the uplink time unit.

[0374] In some embodiments, when an uplink configuration includes the uplink signal resources located on the uplink sub - band and the uplink signal resources located on the uplink time unit, the correspondence between the downlink signal and the uplink signal resources includes:

[0375] One downlink signal is mapped to at least one of the uplink signal resources located on the uplink sub - band and the uplink signal resources located on the uplink time unit.

[0376] In some embodiments, the correspondence between the downlink signal and the uplink signal resources at least includes: all pre - configured downlink signals are mapped to all uplink signal resources located on the uplink time unit.

[0377] In some embodiments, the downlink signal includes at least one of the following: synchronization signal block SSB, channel state information reference signal CSI - RS;

[0378] The uplink signal resources include at least one of the following: random access opportunity RO, configured grant physical uplink shared channel CG - PUSCH resource, sounding reference signal SRS resource.

[0379] In some embodiments, the above transceiver unit 510 may be a communication interface or transceiver, or an input - output interface of a communication chip or system - on - chip.

[0380] It should be understood that the downlink signal to uplink signal resource mapping apparatus 500 according to the embodiments of the present application may correspond to the network-side device in the method embodiments of the present application, and each unit in the downlink signal to uplink signal resource mapping apparatus 500 respectively implements Figure 15 the corresponding processes of the network-side device in the method 300 shown, and for the sake of brevity, will not be elaborated here.

[0381] Therefore, in the embodiments of the present application, the terminal can determine the uplink signal resource corresponding to the downlink signal according to the resource type where the downlink signal is located, and the resource type where the uplink signal resource is located can support the duplex mode, thereby improving the system resource utilization rate and reducing the latency, and can also improve the uplink coverage.

[0382] The downlink signal to uplink signal resource mapping apparatus in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or a network-side device, or other devices other than the terminal or the network-side device. Exemplarily, the terminal may include but is not limited to the types of the terminal 11 listed above, the network-side device may include but is not limited to the types of the network-side device 12 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0383] The downlink signal to uplink signal resource mapping apparatus provided in the embodiments of the present application can implement Figure 6 or Figure 15 each process implemented by the method embodiments, and achieve the same technical effects, and for the sake of avoiding repetition, will not be elaborated here.

[0384] As Figure 18 shown, the embodiments of the present application further provide a communication device 600, including a processor 601 and a memory 602, and a program or instruction that can run on the processor 601 is stored on the memory 602.

[0385] For example, when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, it implements each step executed by the terminal in the above-mentioned downlink signal to uplink signal resource mapping method embodiment, and can achieve the same technical effects, and for the sake of avoiding repetition, will not be elaborated here.

[0386] Again, for example, when the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, it implements each step executed by the network-side device in the above-mentioned downlink signal to uplink signal resource mapping method embodiment, and can achieve the same technical effects, and for the sake of avoiding repetition, will not be elaborated here.

[0387] An embodiment of the present application further provides a terminal, including a processor and a communication interface, the communication interface being coupled to the processor, and the processor being configured to run a program or an instruction to implement the steps performed by the terminal in the method embodiment as Figure 6 shown. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment, and the same technical effects can be achieved. Specifically, Figure 19 FIG. is a schematic hardware structure diagram of a terminal according to an embodiment of the present application.

[0388] The terminal 700 includes, but is not limited to, at least some components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0389] Those skilled in the art can understand that the terminal 700 may further include a power source (such as a battery) for supplying power to each component. The power source may be logically connected to the processor 710 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 19 The terminal structure shown in does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0390] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The graphics processor 7041 processes the image data of a static picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0391] In the embodiments of the present application, after the radio frequency unit 701 receives downlink data from a network-side device, it can be transmitted to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0392] The memory 709 can be used to store software programs or instructions and various data. The memory 709 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static RAM (SRAM), a dynamic RAM (DRAM), a synchronous DRAM (SDRAM), a double data rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a synch link DRAM (SLDRAM), and a direct rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0393] The processor 710 may include at least one processing unit; optionally, the processor 710 integrates an application processor and a modulation and demodulation processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and applications, etc., and the modulation and demodulation processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modulation and demodulation processor may not be integrated into the processor 710.

[0394] Wherein, the processor 710 is configured to determine the uplink signal resource corresponding to the downlink signal according to the resource type of the downlink signal; the radio frequency unit 701 is configured to send an uplink signal according to the uplink signal resource;

[0395] Wherein, the resource type of the uplink signal resource includes at least one of the following:

[0396] Uplink sub-band, uplink time unit.

[0397] It can be understood that the implementation processes of the implementation manners mentioned in this embodiment can refer to the relevant descriptions of the method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, details are not described herein again.

[0398] An embodiment of the present application further provides a network-side device, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the steps performed by the network-side device in the method embodiment as Figure 15 shown. This network-side device embodiment corresponds to the above network-side device method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this network-side device embodiment, and the same technical effects can be achieved. For the sake of brevity, details are not described herein again.

[0399] Specifically, an embodiment of the present application further provides a network-side device. As Figure 20 shown, the network-side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and then sends it out through the antenna 81.

[0400] The method performed by the network-side device in the above embodiments can be implemented in the baseband device 83, and the baseband device 83 includes a baseband processor.

[0401] The baseband device 83 may include, for example, at least one baseband board, and at least two chips are provided on the baseband board. As Figure 20 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 through a bus interface to call a program in the memory 85 to execute the network device operations shown in the above method embodiments.

[0402] The network-side device may further include a network interface 86, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0403] Specifically, the network-side device 800 in the embodiments of the present application further includes instructions or programs stored in the memory 85 and executable on the processor 84. The processor 84 calls the instructions or programs in the memory 85 to execute Figure 17 the methods executed by the units shown, and achieves the same technical effects. To avoid repetition, it will not be elaborated here.

[0404] The embodiments of the present application further provide a readable storage medium, on which a program or instructions are stored. When the program or instructions are executed by a processor, each process of the above-mentioned embodiment of the mapping method of downlink signals to uplink signal resources is implemented, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0405] Among them, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks, or optical discs, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0406] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement each process of the above-mentioned embodiment of the mapping method of downlink signals to uplink signal resources, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0407] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0408] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the above-mentioned embodiment of the mapping method of downlink signals to uplink signal resources, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0409] The embodiments of the present application further provide a communication system, including: a terminal and a network-side device. Among them, the terminal can be used to execute the steps executed by the terminal in the above-mentioned mapping method of downlink signals to uplink signal resources, and the network-side device can be used to execute the steps executed by the network-side device in the above-mentioned mapping method of downlink signals to uplink signal resources.

[0410] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising such element. In addition, it should be pointed out that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0411] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0412] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the spirit and scope protected by the claims of the present application. These embodiments are all within the protection scope of the present application.

Claims

1. A method for mapping downlink signal to uplink signal resources, characterized in that: include: The terminal determines, according to the resource type of the downlink signal, an uplink signal resource corresponding to the downlink signal; The terminal sends an uplink signal according to the uplink signal resource; The resource type of the uplink signal resource includes at least one of the following: Uplink subband, uplink time unit.

2. The method according to claim 1, characterized in that: The correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following: Duplex configuration cycle; Duplex mode cycle; A mapping mode period, the mapping mode period being a time during which all types of the uplink signal resources are preconfigured and all the downlink signals are mapped at least once; Uplink and downlink configuration; A specific time unit, where the specific time unit is used for mapping the downlink signal to the uplink signal resource; A mapping period of the downlink signal to the uplink signal resource; An association period of the downlink signal to the uplink signal resource; The association pattern period of the downlink signal to the uplink signal resource.

3. The method according to claim 2, characterized in that The correspondence between the downlink signal and the uplink signal resource is determined based on the uplink signal resource that is valid in at least one time domain resource; The at least one time domain resource includes at least one of an uplink subband and an uplink time unit determined based on an uplink and downlink configuration or a duplex configuration period or a duplex mode period in the first time window; The first time window is associated with one of the following: the mapping mode period, the specific time unit, the mapping period of the downlink signal to the uplink signal resource, the association period of the downlink signal to the uplink signal resource, and the association mode period of the downlink signal to the uplink signal resource.

4. The method according to claim 3, characterized in that In different duplex mode periods, the effective uplink signal resources are different.

5. The method according to any one of claims 1 to 4, characterized in that In the case where the uplink signal resource located on the uplink subband and the uplink signal resource located on the uplink time unit are independently configured, the correspondence relationship between the downlink signal and the uplink signal resource includes at least one of the following: All the pre-configured downlink signals are mapped to the uplink signal resources located on the uplink subband and the uplink signal resources located on the uplink time unit; Mapping all the pre-configured downlink signals to the uplink signal resources located on the uplink subband; All the pre-configured downlink signals are mapped to the uplink signal resources located in the uplink time unit.

6. The method according to any one of claims 1 to 4, characterized in that In a case where an uplink configuration includes the uplink signal resource located on an uplink subband and the uplink signal resource located on an uplink time unit, the correspondence between the downlink signal and the uplink signal resource includes: One of the downlink signals is mapped to at least one of the uplink signal resource located on an uplink subband and the uplink signal resource located on an uplink time unit.

7. The method according to claim 6, characterized in that The correspondence between the downlink signal and the uplink signal resource at least includes: all the pre-configured downlink signals are mapped to all the uplink signal resources located in the uplink time unit.

8. The method according to any one of claims 1 to 7, characterized in that The method further comprises: If there are at least two downlink signals whose signal quality is greater than or equal to the first threshold, the terminal selects the downlink signal corresponding to the uplink signal resource supported by it.

9. The method according to any one of claims 1 to 8, characterized in that Before the terminal determines, according to the resource type where the downlink signal is located, the uplink signal resource corresponding to the downlink signal, the method further includes: The terminal receives configuration information from a network side device; The configuration information is used to configure the time domain unit type where the uplink signal resource corresponding to the downlink signal is located to determine based on the time domain unit type where the downlink signal is located.

10. The method according to claim 9, characterized in that The correspondence between the downlink signal and the uplink signal resource includes at least one of the following: Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink subband; The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink time unit and the uplink subband; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink subband; The downlink signal on the downlink subband is mapped to the uplink signal resource on the uplink time unit and the uplink signal resource on the uplink subband.

11. The method according to any one of claims 1 to 10, characterized in that The downlink signal includes at least one of the following: a synchronization signal block SSB, a channel state information reference signal CSI-RS; The uplink signal resources include at least one of the following: random access opportunities RO, configuration authorized physical uplink shared channel CG-PUSCH resources, and sounding reference signal SRS resources.

12. A method for mapping downlink signal to uplink signal resources, characterized in that: include: The network side device sends configuration information to the terminal; The configuration information is used to configure the time domain unit type where the uplink signal resource corresponding to the downlink signal is located based on the time domain unit type where the downlink signal is located; The resource type of the uplink signal resource includes at least one of the following: Uplink subband, uplink time unit.

13. The method according to claim 12, characterized in that The correspondence between the downlink signal and the uplink signal resource includes at least one of the following: Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink subband; The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink time unit and the uplink subband; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink subband; The downlink signal on the downlink subband is mapped to the uplink signal resource on the uplink time unit and the uplink signal resource on the uplink subband.

14. The method according to claim 12 or 13, characterized in that The correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following: Duplex configuration cycle; Duplex mode cycle; A mapping mode period, the mapping mode period being a time during which all types of the uplink signal resources are preconfigured and all the downlink signals are mapped at least once; Uplink and downlink configuration; A specific time unit, where the specific time unit is used for mapping the downlink signal to the uplink signal resource; A mapping period of the downlink signal to the uplink signal resource; An association period of the downlink signal to the uplink signal resource; The association pattern period of the downlink signal to the uplink signal resource.

15. The method according to claim 14, characterized in that The correspondence between the downlink signal and the uplink signal resource is determined based on the uplink signal resource that is valid in at least one time domain resource; The at least one time domain resource includes at least one of an uplink subband and an uplink time unit determined based on an uplink and downlink configuration or a duplex configuration period or a duplex mode period in the first time window; The first time window is associated with one of the following: the mapping mode period, the specific time unit, the mapping period of the downlink signal to the uplink signal resource, the association period of the downlink signal to the uplink signal resource, and the association mode period of the downlink signal to the uplink signal resource.

16. The method according to claim 15, characterized in that In different duplex mode periods, the effective uplink signal resources are different.

17. The method according to any one of claims 12 to 16, characterized in that In the case where the uplink signal resource located on the uplink subband and the uplink signal resource located on the uplink time unit are independently configured, the correspondence relationship between the downlink signal and the uplink signal resource includes at least one of the following: All the pre-configured downlink signals are mapped to the uplink signal resources located on the uplink subband and the uplink signal resources located on the uplink time unit; Mapping all the pre-configured downlink signals to the uplink signal resources located on the uplink subband; All the pre-configured downlink signals are mapped to the uplink signal resources located in the uplink time unit.

18. The method according to any one of claims 12 to 16, characterized in that In a case where an uplink configuration includes the uplink signal resource located on an uplink subband and the uplink signal resource located on an uplink time unit, the correspondence between the downlink signal and the uplink signal resource includes: One of the downlink signals is mapped to at least one of the uplink signal resource located on an uplink subband and the uplink signal resource located on an uplink time unit.

19. The method according to claim 18, characterized in that The correspondence between the downlink signal and the uplink signal resource at least includes: all the pre-configured downlink signals are mapped to all the uplink signal resources located in the uplink time unit.

20. The method according to any one of claims 12 to 19, characterized in that The downlink signal includes at least one of the following: a synchronization signal block SSB, a channel state information reference signal CSI-RS; The uplink signal resources include at least one of the following: random access opportunities RO, configuration authorized physical uplink shared channel CG-PUSCH resources, and sounding reference signal SRS resources.

21. A device for mapping downlink signals to uplink signal resources, characterized in that: include: A processing unit, configured to determine an uplink signal resource corresponding to the downlink signal according to a resource type of the downlink signal; a transceiver unit, configured to send an uplink signal according to the uplink signal resource; The resource type of the uplink signal resource includes at least one of the following: Uplink subband, uplink time unit.

22. The device according to claim 21, characterized in that The correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following: Duplex configuration cycle; Duplex mode cycle; A mapping mode period, the mapping mode period being a time during which all types of the uplink signal resources are preconfigured and all the downlink signals are mapped at least once; Uplink and downlink configuration; A specific time unit, where the specific time unit is used for mapping the downlink signal to the uplink signal resource; A mapping period of the downlink signal to the uplink signal resource; An association period of the downlink signal to the uplink signal resource; The association pattern period of the downlink signal to the uplink signal resource.

23. The device according to claim 22, characterized in that The correspondence between the downlink signal and the uplink signal resource is determined based on the uplink signal resource that is valid in at least one time domain resource; The at least one time domain resource includes at least one of an uplink subband and an uplink time unit determined based on an uplink and downlink configuration or a duplex configuration period or a duplex mode period in the first time window; The first time window is associated with one of the following: the mapping mode period, the specific time unit, the mapping period of the downlink signal to the uplink signal resource, the association period of the downlink signal to the uplink signal resource, and the association mode period of the downlink signal to the uplink signal resource.

24. The device according to any one of claims 21 to 23, characterized in that If there are at least two downlink signals whose signal quality is greater than or equal to the first threshold, the processing unit is further configured to select the downlink signal corresponding to the uplink signal resource supported by it.

25. The device according to any one of claims 21 to 24, characterized in that Before the mapping device of the downlink signal to the uplink signal resource determines the uplink signal resource corresponding to the downlink signal according to the resource type of the downlink signal, the transceiver unit is further used to receive configuration information from a network side device; The configuration information is used to configure the time domain unit type where the uplink signal resource to which the downlink signal is mapped is determined based on the time domain unit type where the downlink signal is located.

26. The device according to claim 25, characterized in that The correspondence between the downlink signal and the uplink signal resource includes at least one of the following: Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink subband; The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink time unit and the uplink subband; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink subband; The downlink signal on the downlink subband is mapped to the uplink signal resource on the uplink time unit and the uplink signal resource on the uplink subband.

27. A device for mapping downlink signals to uplink signal resources, characterized in that: include: A transceiver unit, used to send configuration information to the terminal; The configuration information is used to configure the time domain unit type where the uplink signal resource corresponding to the downlink signal is located based on the time domain unit type where the downlink signal is located; The resource type of the uplink signal resource includes at least one of the following: Uplink subband, uplink time unit.

28. The device according to claim 27, characterized in that The correspondence between the downlink signal and the uplink signal resource includes at least one of the following: Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink time unit to the uplink signal resource on the uplink subband; The downlink signal on the downlink time unit is mapped to the uplink signal resource on the uplink time unit and the uplink subband; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink time unit; Mapping the downlink signal on the downlink subband to the uplink signal resource on the uplink subband; The downlink signal on the downlink subband is mapped to the uplink signal resource on the uplink time unit and the uplink signal resource on the uplink subband.

29. The device according to claim 27 or 28, characterized in that The correspondence between the downlink signal and the uplink signal resource is associated with at least one of the following: Duplex configuration cycle; Duplex mode cycle; A mapping mode period, the mapping mode period being a time during which all types of the uplink signal resources are preconfigured and all the downlink signals are mapped at least once; Uplink and downlink configuration; A specific time unit, where the specific time unit is used for mapping the downlink signal to the uplink signal resource; A mapping period of the downlink signal to the uplink signal resource; An association period of the downlink signal to the uplink signal resource; The association pattern period of the downlink signal to the uplink signal resource.

30. A terminal, characterized in that: It includes a transceiver, a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for mapping downlink signal to uplink signal resources as described in any one of claims 1 to 11 are implemented.

31. A network side device, characterized in that: It includes a transceiver, a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for mapping downlink signal to uplink signal resources as described in any one of claims 12 to 20 are implemented.

32. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the method for mapping a downlink signal to an uplink signal resource as described in any one of claims 1 to 11, or implements the steps of the method for mapping a downlink signal to an uplink signal resource as described in any one of claims 12 to 20.

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