Signal transmission method, terminal and network side equipment

Abstract

The invention discloses a signal transmission method, a terminal and network side equipment, and belongs to the technical field of wireless communication, and the signal transmission method comprises the steps that the terminal carries out signal transmission with the network side equipment according to a target rule, and the target rule comprises at least one of the following rules: a first rule which is used for indicating to carry out downlink transmission preferentially, and a second rule which is used for indicating to carry out downlink transmission preferentially; the second rule is used for carrying out conflict judgment based on the first target time offset value or carrying out signal transmission based on the first target time offset value; and a third rule for determining a target timing gap (GAP) based on the second target time offset value.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technologies, and particularly relates to a signal transmission method, a terminal, and a network-side device. Background Art

[0002] In a Non Terrestrial Network (NTN) scenario, a terminal may determine a Timing Advance (TA) on the terminal side based on location and satellite ephemeris information. When the network-side device is unaware of the TA adjusted by the terminal or has not obtained the latest dedicated TA of the terminal, the understanding of the uplink (UL) timing between the network-side device and the terminal may be inconsistent, which may lead to inconsistent conflict judgments and thus different transmission behaviors.

[0003] Therefore, how to avoid inconsistent conflict judgments between the network-side device and the terminal is a technical problem to be solved in the related art. Summary of the Invention

[0004] Embodiments of this application provide a signal transmission method, a terminal, and a network-side device, which can solve the problem of inconsistent conflict judgments between the network-side device and the terminal.

[0005] In a first aspect, a signal transmission method is provided, including: a terminal performs signal transmission with a network-side device according to a target rule, where the target rule includes at least one of the following: a first rule for indicating preferentially performing downlink transmission; a second rule for performing conflict determination or signal transmission based on a first target time offset value; a third rule for determining a target timing gap (GAP) based on a second target time offset value.

[0006] In a second aspect, a signal transmission method is provided, including: a network-side device performs signal transmission with the terminal according to the target rule used by the terminal, where the target rule includes at least one of the following: a first rule for indicating preferentially performing downlink transmission; a second rule for performing conflict determination or signal transmission based on a first target time offset value; a third rule for determining a target timing gap (GAP) based on a second target time offset value.

[0007] In a third aspect, a signal transmission device is provided, including: a first determination module configured to determine a target rule; and a first transmission module configured to perform signal transmission with a network-side device according to the target rule; wherein the target rule includes at least one of the following: a first rule for indicating preferential downlink transmission; a second rule for performing collision determination based on a first target time offset value or for performing signal transmission based on the first target time offset value; and a third rule for determining a target fixed time gap (GAP) based on a second target time offset value.

[0008] In a fourth aspect, a signal transmission device is provided, including: a second determination module configured to determine a target rule used by a terminal; and a second transmission module configured to perform signal transmission with the terminal according to the target rule used by the terminal; wherein the target rule includes at least one of the following: a first rule for indicating preferential downlink transmission; a second rule for performing collision determination based on a first target time offset value or for performing signal transmission based on the first target time offset value; and a third rule for determining a target fixed time gap (GAP) based on a second target time offset value.

[0009] In a fifth aspect, a terminal is provided, which includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0010] In a sixth aspect, a terminal is provided, including a processor and a communication interface. The processor is configured to implement the steps of the method described in the first aspect, and the communication interface is configured to be coupled with the processor.

[0011] In a seventh aspect, a network-side device is provided, which includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0012] In an eighth aspect, a network-side device is provided, including a processor and a communication interface. The processor is configured to implement the steps of the method described in the second aspect, and the communication interface is configured to be coupled with the processor.

[0013] In a ninth aspect, a readable storage medium is provided. A program or instructions are stored on the readable storage medium. When the program 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.

[0014] 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.

[0015] 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 steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0016] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0017] In the embodiments of the present application, the terminal performs signal transmission with the network-side device according to a target rule. Among them, the target rule may include at least one of a first rule, a second rule, and a third rule. The first rule is used to indicate that downlink transmission is preferred, so that when uplink transmission and downlink transmission conflict, downlink transmission can be preferred according to the first rule, avoiding inconsistent behaviors between the network-side device and the terminal. The second rule is used to perform conflict determination based on a first target time offset value or to perform signal transmission based on the first target time offset value. Therefore, a time offset value can be introduced in the conflict determination. Thus, even if the network-side device does not know the TA adjusted by the terminal, the TA adjusted by the terminal can be offset by this time offset value, so that the conflict determination between the network-side device and the terminal is consistent or the transmission behaviors of the network-side device and the terminal are consistent. The third rule is used to determine a fixed time slot based on a second target. Therefore, a time offset value can be introduced when using the fixed time slot. Thus, even if the network-side device does not know the TA adjusted by the terminal, the TA adjusted by the terminal can be offset by this time offset value, so that the behaviors of the network-side device and the terminal are consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown;

[0019] Figure 2 A schematic structural diagram of an application system according to an embodiment of the present application is shown;

[0020] Figure 3a It is an example diagram of a transmission scenario;

[0021] Figure 3b It is an example diagram of a transmission scenario;

[0022] Figure 4a It is a schematic diagram of a transmission scenario example;

[0023] Figure 4b It is a schematic diagram of a transmission scenario example;

[0024] Figure 5a It is a schematic diagram of a transmission scenario example;

[0025] Figure 5b It is a schematic diagram of a transmission scenario example;

[0026] Figure 6a It is a schematic diagram of a transmission scenario example;

[0027] Figure 6b It is a schematic diagram of a transmission scenario example;

[0028] Figure 7a It is a schematic diagram of a transmission scenario example;

[0029] Figure 7b It is a schematic diagram of a transmission scenario example;

[0030] Figure 8a It is a schematic diagram of a transmission scenario example;

[0031] Figure 8b It is a schematic diagram of a transmission scenario example;

[0032] Figure 9 It is a schematic diagram of a transmission scenario example;

[0033] Figure 10 It is a schematic flow diagram of a signal transmission method provided by an embodiment of the present application;

[0034] Figure 11a It is a schematic diagram of a transmission scenario example;

[0035] Figure 11b It is a schematic diagram of a transmission scenario example;

[0036] Figure 11c It is a schematic diagram of a transmission scenario example;

[0037] Figure 11d It is a schematic diagram of a transmission scenario example;

[0038] Figure 11e It is a schematic diagram of a transmission scenario example;

[0039] Figure 11f It is a schematic diagram of a transmission scenario example;

[0040] Figure 11g It is a schematic diagram of a transmission scenario example;

[0041] Figure 12a It is a schematic diagram of a transmission scenario example;

[0042] Figure 12b It is a schematic diagram of a transmission scenario example;

[0043] Figure 12c It is a schematic diagram of a transmission scenario example;

[0044] Figure 13 It is another schematic flowchart of the signal transmission method provided by the embodiments of the present application;

[0045] Figure 14 It is a schematic structural diagram of the signal transmission device provided by the embodiments of the present application;

[0046] Figure 15 It is another schematic structural diagram of the signal transmission device provided by the embodiments of the present application;

[0047] Figure 16 It shows a schematic structural diagram of a communication device provided by the embodiments of the present application;

[0048] Figure 17 It shows a schematic hardware structure diagram of a terminal provided by the embodiments of the present application;

[0049] Figure 18 It shows a schematic hardware structure diagram of a network - side device provided by the embodiments of the present application. Detailed implementation manners

[0050] 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 protected by the present application.

[0051] 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 usually of the same category, and do not limit the number of objects. 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 represents an "or" relationship between the associated objects before and after.

[0052] 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 tells the receiver 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 according to 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.

[0053] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, and can also be used in other wireless communication systems, such as 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), 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 in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses the NR terms 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.

[0054] Figure 1The 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 (User Equipment, UE) 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 called 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. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be called a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AS), 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 specific technical terms. 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.

[0055] The core network device may include, but is not limited to, at least one of the following: core network node, core network function, 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), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), 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.

[0056] Currently, the transmission architecture and timing relationship in the NTN scenario are as Figure 2 shown. The timing of the uplink and downlink frames at the Reference Point (RP) is aligned, and the T of the entire transmission process TAIt is used to represent the Timing Advance (TA) between the UE and the RP. The timing relationship between the terrestrial base station and the RP is adjusted and maintained through the parameter K_mac. For example, it is used to postpone the effective time of the DownLink (DL) configuration indicated by the Medium Access Control (MAC) Control Element (CE), or to estimate the Round Trip Time (RTT) between the UE and the gNB, or to determine the start time of the Random Access Response (RAR) window / message B (MsgB) window after the transmission of message 1 (Msg1) / message A (MsgA) during the random access process.

[0057] According to the protocol agreement, T can be calculated according to the following formula: TA Calculation:

[0058]

[0059] Where,

[0060] N TA Represents the TA value carried in the TA command in the existing protocol;

[0061] N TA,offset Is the fixed TA offset value specified in the existing protocol, used to characterize the offset value of the uplink and downlink frames not aligned at the RP;

[0062] Refers to the common TA broadcast by the network-side device, which can be obtained through the corresponding high-layer parameter and is used to characterize the RTT between the RP and the satellite;

[0063] Refers to the UE-side TA determined by the UE based on the location and satellite ephemeris information.

[0064] The TA adjusted by the UE side can be carried to the network-side device through the grant in message 3 (Msg3) or message 5 (Msg5) during the random access in the connection establishment / resumption / reconstruction / handover process, or carried to the network-side device through the scheduled grant in the connected state.

[0065] Therefore, in the initial access phase, the TA self-compensated by the UE when sending the preamble may not be known to the network-side device, and it will take at least until the TA report in the grant information of msg3. Before that, the understanding of UL timing between the network-side device and the UE side may be inconsistent; or the understanding of UL timing between the network-side device and the UE side may also be inconsistent before the gNB receives the updated TA Report after the UE location update or ephemeris information update. The corresponding processes involving UL and DL interactions may all be affected, resulting in inconsistent understanding of UL Timing between the UE side and the gNB side, so that the collision rules for the uplink and downlink transmissions of the Half Duplex Frequency Division Duplex (HD-FDD) reduced-capability (RedCap) UE are not very applicable in the NTN scenario.

[0066] In the Frequency Division Duplex (FDD) mode, for the half-duplex RedCap UE, simultaneous transmission and reception are not supported. Specifically, there are the following several conflict forms:

[0067] (1) Conflict between the uplink transmission scheduled by DCI and the configured downlink transmission

[0068] The existing protocol stipulates that in the case of a conflict between the uplink transmission scheduled by DCI and the configured downlink transmission, if there are symbols of the uplink transmission scheduled by the Downlink Control Information (DCI) in a set of symbols for receiving the downlink transmission, the UE will not receive the downlink transmission configured by the higher-layer parameters, as Figure 3a shown.

[0069] When applying the TA adjustment mechanism in the NTN scenario, when the network-side device is unaware of the TA adjusted by the UE or has not obtained the latest UE-specific TA, the understanding of UL timing between the network-side device and the UE side is inconsistent, which may lead to the situation as Figure 3b shown, where the network-side device expects that there will be no conflict between the uplink transmission scheduled by DCI and the configured downlink transmission, but actually due to the TA adjusted by the UE, a conflict occurs between the uplink transmission scheduled by DCI and the configured downlink transmission.

[0070] (2) Conflict between the downlink transmission scheduled by DCI and the configured uplink transmission

[0071] If there are symbols for transmitting Channel State Information Reference Signal (CSI-RS) / Physical Downlink Shared Channel (PDSCH) scheduled by DCI in a set of symbols for uplink transmission:

[0072] (1) If the first symbol of this set of symbols for uplink transmission (Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH)) is within T_pro,2 (which can also be denoted as T pro,2 ) after the last symbol of the received DCI, the UE does not cancel the uplink transmission (because canceling the uplink transmission also requires preparation time, and in this case, the preparation time is insufficient); otherwise, the uplink transmission is canceled, where T_pro,2 is the preparation time for physical uplink channel transmission. As Figure 4a shown.

[0073] When applying the TA adjustment mechanism in the NTN scenario, when the network-side device does not know the TA adjusted by the UE or has not obtained the latest UE-specific TA, the understanding of UL Timing between the network-side device and the UE side is inconsistent, which may lead to a scenario as Figure 4b shown. The network-side device believes that the configured uplink transmission is outside T_pro,2 after the last symbol of the received DCI, and the UE will cancel this uplink transmission and receive the downlink transmission scheduled by DCI. However, due to the TA adjusted by the UE, the configured uplink transmission is within T_pro,2 after the last symbol of the received DCI, and the UE continues this uplink transmission and does not receive the downlink transmission scheduled by DCI, thus resulting in inconsistent behaviors between the network-side device and the terminal.

[0074] (2) If the UE does not cancel the symbols within T_pro,2 after the last symbol of the received DCI in this set of symbols for transmitting Sounding Reference Signal (SRS), and cancels the SRS transmission of the remaining symbols, as Figure 5a shown.

[0075] When applying the TA adjustment mechanism in the NTN scenario, when the network-side device does not know the TA adjusted by the UE or has not obtained the latest UE-specific TA, the understanding of UL Timing between the network-side device and the UE side is inconsistent, which may lead to a scenario as Figure 5bIn the scenario shown, the network-side device believes that the first SRS transmission is outside T_pro,2 after the last symbol of the received DCI. The UE will cancel the first SRS transmission and receive the downlink transmission scheduled by the DCI. Since the second SRS does not conflict with the downlink transmission scheduled by the DCI, the UE will receive the first SRS transmission. However, due to the TA adjusted by the UE, the first SRS transmission is within T_pro,2 after the last symbol of the received DCI. The UE continues the first SRS transmission and does not receive the downlink transmission scheduled by the DCI. The second SRS transmission conflicts with the downlink transmission scheduled by the DCI and is outside T_pro,2 after the last symbol of the received DCI. The UE cancels the second SRS transmission, resulting in inconsistent behavior between the network-side device and the terminal.

[0076] (3) Conflict between SSB transmission and configured uplink transmission

[0077] The protocol stipulates that when the symbols of the configured uplink PUSCH / PUCCH / SRS transmission are between the symbols of the candidate Synchronization Signal Block (SSB) transmission:

[0078] (1) If the last symbol of the PUSCH / PUCCH transmission is at least N Tx-Rx *Tc earlier than the first symbol of the next earliest SSB, then the PUSCH / PUCCH is not cancelled; otherwise, it is cancelled, as Figure 6a shown. N Tx-Rx (which can also be denoted as N_TxRx) is the shortest time for a half-duplex terminal to switch from transmission to reception, and T c is the basic time unit of the communication system.

[0079] When applying the TA adjustment mechanism in the NTN scenario, when the network-side device is unaware of the TA adjusted by the UE or has not obtained the latest UE-specific TA, the understanding of UL Timing between the network-side device and the UE side is inconsistent. There may be a scenario as Figure 6b shown, where the network-side device believes that the last symbol of the configured uplink transmission is not N Tx-Rx *Tc earlier than the first symbol of the next earliest SSB. The UE will cancel the configured uplink transmission. However, due to the TA adjusted by the UE, the last symbol of the configured uplink transmission is N Tx-Rx *Tc or more earlier than the first symbol of the next earliest SSB. Therefore, the UE does not cancel the configured uplink transmission, resulting in inconsistent behavior between the network-side device and the terminal.

[0080] (2) If the first symbol of PUSCH / PUCCH transmission is delayed by at least N Rx-Tx *Tc compared to the last symbol of the previous latest SSB, then PUSCH / PUCCH is not cancelled; otherwise, it is cancelled. As Figure 7a shown. N Rx-Tx (which can also be denoted as N_RxTx) is the shortest time for a half-duplex terminal to switch from reception to transmission.

[0081] In the NTN scenario, when applying the TA adjustment mechanism, when the network-side device is unaware of the TA adjusted by the UE or has not obtained the latest UE-specific TA, there is a disagreement between the network-side device and the UE side regarding the understanding of UL Timing, and a scenario such as Figure 7b may occur. The network-side device expects the first symbol of the configured uplink transmission to be delayed by more than N Rx-Tx *Tc compared to the last symbol of the previous latest SSB, and the UE does not cancel this uplink transmission. However, due to the TA adjusted by the UE, the first symbol of the configured uplink transmission is delayed by less than N Rx-Tx *Tc compared to the last symbol of the previous latest SSB. Therefore, the UE cancels the configured uplink transmission, resulting in inconsistent behavior between the network-side device and the terminal.

[0082] (3) The UE transmits SRS symbols, and these SRS symbols are at least advanced by N Tx-Rx *Tc compared to the first symbol of the next earliest SSB; otherwise, the UE does not transmit other SRS symbols;

[0083] (4) The UE transmits SRS symbols, and these SRS symbols are at least delayed by N Rx-Tx *Tc compared to the last symbol of the previous latest SSB; otherwise, the UE does not transmit other SRS symbols.

[0084] As Figure 8a shown, the UE transmits SRS that is at least advanced by N Tx-Rx *Tc compared to the first symbol of the next earliest SSB and does not transmit SRS that is advanced by less than N Tx-Rx *Tc compared to the first symbol of the next earliest SSB. The UE transmits SRS that is at least delayed by N Rx-Tx *Tc compared to the last symbol of the previous latest SSB and does not transmit SRS that is delayed by less than N Rx-Tx *Tc compared to the last symbol of the previous latest SSB.

[0085] However, when applying the TA adjustment mechanism in the NTN scenario, if the network-side device is unaware of the TA adjusted by the UE or has not obtained the latest UE-specific TA, there will be inconsistent understandings of UL Timing between the network-side device and the UE side, and the expected terminal behavior by the network-side device will be inconsistent with the actual behavior executed by the terminal, which may lead to situations such as Figure 8b as shown.

[0086] (4) Handling of symbol overlap between SSB transmission and uplink transmission

[0087] In the existing protocol, if the uplink transmission symbol overlaps with the SSB symbol, the UE will not send PUSCH / PUCCH / PRACH, and the UE will not send SRS within the SSB symbol set.

[0088] However, when applying the TA adjustment mechanism in the NTN scenario, if the network-side device is unaware of the TA adjusted by the UE or has not obtained the latest UE-specific TA, there will be inconsistent understandings of UL Timing between the network-side device and the UE side, and the expected terminal behavior by the network-side device will be inconsistent with the actual behavior executed by the terminal, which may lead to situations such as Figure 9 as shown.

[0089] In addition, the protocol stipulates the requirements for the Timing gap between uplink and downlink transmissions for Enhanced Reduced capability (eRedCap) UEs. This is mainly because eRedCap UEs only support transmissions with a 5MHz bandwidth, while RedCap UEs support transmissions with a 20MHz bandwidth. Therefore, there are differences in the preparation time for eRedCap UEs.

[0090] According to the description of the existing protocol, this Timing gap is based on DL Timing to determine the Timing for uplink transmission, but there may be a situation where the TA adjusted by the UE side is inconsistent with the TA known to the network-side device, which may lead to inconsistent understandings of transmission behavior between the network-side device and the terminal. For example, the network-side device sends the msg3 PUSCH scheduled by RAR to meet the above Timing gap, but due to the UE adjusting too much TA, the Timing for transmitting the msg3 PUSCH is within the Timing gap, resulting in the UE thinking that it cannot transmit the msg3 PUSCH, while the network-side device expects the UE to be able to transmit the msg3 PUSCH at this time.

[0091] It can be seen that when applying the TA adjustment mechanism in the NTN scenario, when the network-side device does not know the TA adjusted by the UE or has not obtained the latest UE-specific TA, the understanding of UL Timing by the network-side device and the UE side is inconsistent, resulting in inconsistent judgments on the RedCap collision rules, thereby generating different transmission behaviors and causing transmission conflicts. To avoid this situation, the embodiments of the present application provide a signal transmission scheme to enable consistent understanding of the specified transmission behaviors by the transceiver in case of transmission conflicts in the NTN scenario, ensuring the effectiveness of transmission.

[0092] The following will combine the accompanying drawings to elaborate in detail on the signal transmission scheme provided by the embodiments of the present application through some embodiments and their application scenarios.

[0093] Figure 10 Fig. 1 shows a schematic flowchart of a transmission method in the embodiments of the present application. The method 1000 can be executed by a communication device. In other words, the method can be executed by software or hardware installed on the communication device. As Figure 10 shown, the method may include the following steps.

[0094] S1010, the terminal performs signal transmission with the network-side device according to the target rules.

[0095] In the embodiments of the present application, the target rules include at least one of the following:

[0096] The first rule, used to indicate preferential downlink transmission;

[0097] The second rule, used to perform collision determination based on the first target time offset value or perform signal transmission based on the first target time offset value;

[0098] The third rule, used to determine the target timing gap (GAP) based on the second target time offset value.

[0099] In the embodiments of the present application, the terminal may be a half-duplex RedCap UE or eRedCap UE. Of course, it is not limited thereto, and the terminal may also be other types of terminals.

[0100] In the embodiments of the present application, the terminal and the network-side device may be in the NTN scenario. Of course, it is not limited thereto, and the technical solutions provided by the embodiments of the present application can also be applied to other types of scenarios.

[0101] In the technical solution provided by the embodiments of the present application, the terminal performs signal transmission with the network-side device according to a target rule, where the target rule may include at least one of a first rule, a second rule, and a third rule. The first rule is used to indicate that downlink transmission is preferred, so that when uplink transmission and downlink transmission conflict, downlink transmission can be preferentially performed according to the first rule, avoiding inconsistent behaviors between the network-side device and the terminal. The second rule is used to perform conflict determination based on a first target time offset value or perform signal transmission based on the first target time offset value. Thus, a time offset value can be introduced in the conflict determination. Therefore, even if the network-side device does not know the TA adjusted by the terminal, the TA adjusted by the terminal can be offset through this time offset value, so that the conflict determination between the network-side device and the terminal is consistent or the transmission behaviors of the network-side device and the terminal are consistent. The third rule is used to determine a fixed time slot based on a second target, so that a time offset value can be introduced when using the fixed time slot. Therefore, even if the network-side device does not know the TA adjusted by the terminal, the TA adjusted by the terminal can be offset through this time offset value, so that the behaviors of the network-side device and the terminal are consistent.

[0102] In an alternative implementation, when uplink transmission and downlink transmission of the terminal conflict and UL timing is not aligned, the terminal always preferentially performs downlink transmission. For example, in the NTN scenario where the TA adjustment mechanism is applied, when the network-side device does not know the TA adjusted by the UE or has not obtained the latest UE specific TA, the understandings of UL timing by the network-side device and the UE side are inconsistent. At this time, for the half-duplex RedCap UE, downlink transmission is always preferred, so that the conflict resolution methods of the network-side device and the terminal can be unified.

[0103] In an alternative implementation, the terminal performing signal transmission according to the first rule may include: when at least some symbols of uplink transmission and downlink transmission overlap in the time domain, the terminal receives the downlink transmission; the downlink transmission includes at least one of the following: PDCCH, PDSCH, CSI-RS, DL positioning reference signal (Positioning Reference Signal, PRS).

[0104] In the above alternative implementation, in the case of a conflict between uplink transmission and downlink transmission, for example, if there are symbols of uplink transmission scheduled by DCI in a set of symbols of downlink transmission configured by high-layer parameters, the terminal preferentially receives the downlink transmission configured by high-layer parameters, or the terminal does not expect the symbols of uplink transmission scheduled by DCI to overlap with the configured downlink transmission.

[0105] In an optional implementation, the second rule may include: when the symbols of the uplink transmission scheduled by DCI overlap with at least one first symbol in the time domain, determining that there is a conflict between the uplink transmission scheduled by DCI and the downlink transmission configured by high-layer parameters, where the at least one first symbol includes the symbols within the time from the first target time offset value before the first symbol of the downlink transmission configured by high-layer parameters to the first target time offset value after the last symbol of the downlink transmission configured by high-layer parameters, and the downlink transmission configured by high-layer parameters includes at least one of the following: PDCCH, PDSCH, CSI-RS, DL PRS. In this optional implementation, in the conflict determination between the uplink transmission scheduled by DCI and the downlink transmission configured by high-layer parameters, the first target time offset value is introduced. When there is partial or complete overlap between the symbols of the uplink transmission scheduled by DCI and the symbols within the time from the first target time offset value before the first symbol of the downlink transmission configured by high-layer parameters to the first target time offset value after the last symbol of the downlink transmission configured by high-layer parameters, it is determined that there is a conflict between the uplink transmission scheduled by DCI and the downlink transmission configured by high-layer parameters, so that even if the network-side device is unaware of the TA adjusted by the terminal, the inconsistent understanding of the UE's UL timing between the terminal and the network-side device can be offset by the first target time offset value.

[0106] In an optional implementation, the terminal's signal transmission according to the second rule may include: when the symbols of the uplink transmission scheduled by the first DCI overlap with at least one first symbol in the time domain, the terminal transmits the uplink transmission scheduled by the first DCI and does not receive the downlink transmission configured by the first high-layer parameters, where the at least one first symbol is the symbols within the time from the first target time offset value before the first symbol of the first set of symbols of the downlink transmission configured by the first high-layer parameters to the first target time offset value after the last symbol of the first set of symbols. The downlink transmission configured by the first high-layer parameters includes, but is not limited to, at least one of the following: PDCCH, PDSCH, CSI-RS, DL PRS.

[0107] For example, as Figure 11a shown, if there are symbols of the uplink transmission scheduled by DCI within the time from the first target time offset value T_offset before the first symbol of a set of symbols of the downlink transmission configured by high-layer parameters to T_offset after the last symbol of this set of symbols, the UE transmits the uplink transmission scheduled by DCI and does not receive the downlink transmission configured by high-layer parameters, and the downlink transmission includes at least one of PDCCH, PDSCH, CSI-RS, and DL PRS.

[0108] In the above implementation manner, for an HD-UE, if the higher layer configures the HD-UE to receive PDCCH, PDSCH, or CSI-RS, or DL PRS in a symbol set, then if the HD-UE does not detect a DCI format indicating that the HD-UE transmits PUSCH, or PUCCH, or PRACH, or SRS in at least one symbol within T_offset before the first symbol of the symbol set or within T_offest after the last symbol of the symbol set, the HD-UE receives PDCCH, or PDSCH, or CSI-RS or DL PRS; otherwise, the HD-UE does not receive PDCCH, PDSCH, CSI-RS, or DL PRS in the symbol set.

[0109] In another optional implementation manner, the second rule may include: when the symbols of the downlink transmission scheduled by DCI overlap with at least one second symbol in the time domain, it is determined that there is a conflict between the downlink transmission scheduled by DCI and the uplink transmission configured by the higher layer parameters, where the at least one second symbol includes the symbols within the time from a third target time offset value before the first symbol of the uplink transmission configured by the higher layer parameters to the third target time offset value after the last symbol of the uplink transmission configured by the higher layer parameters. In this optional implementation manner, in the conflict determination between the downlink transmission scheduled by DCI and the uplink transmission configured by the higher layer parameters, a third target time offset value is introduced. When there is partial or complete overlap between the symbols of the downlink transmission scheduled by DCI and the symbols within the time from the third target time offset value before the first symbol of the uplink transmission configured by the higher layer parameters to the third target time offset value after the last symbol of the uplink transmission configured by the higher layer parameters, it is determined that there is a conflict between the downlink transmission scheduled by DCI and the uplink transmission configured by the higher layer parameters, so that even if the network side device does not know the TA adjusted by the terminal, the inconsistency in the understanding of the UE's UL timing between the terminal and the network side device can be offset by the third target time offset value.

[0110] In the above optional implementation manner, the third target time offset value may be the above first target time offset value, or may also be the sum of the first target time offset value and the preparation time for physical uplink channel transmission. For example, when the value of the first target time offset value is small, for example, less than the TA adjusted by the terminal, the third target time offset value may be the sum of the first target time offset value and the preparation time for physical uplink channel transmission. When the value of the first target time offset is large, for example, greater than the TA adjusted by the terminal, the third target time offset value may be the first target time offset value.

[0111] In an optional implementation, the terminal's signal transmission according to the second rule may include: when there is an overlap in the time domain between the symbols of the downlink transmission scheduled by the second DCI and at least one second symbol, the terminal does not cancel the first uplink transmission within the first time period and cancels the first uplink transmission within the second time period, where the first uplink transmission is an uplink transmission configured by a second high-layer parameter, the at least one second symbol includes the symbols within the time from a third target time offset value before the first symbol of the first uplink transmission to the third target time offset value after the last symbol of the first uplink transmission, the first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS, the first time period is the time within the third target time offset value after the last symbol of receiving the second DCI, the second time period is the time after the third target time offset value after the last symbol of receiving the second DCI, the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time for physical uplink channel transmission, for example, T_pro,2 + T_offset.

[0112] For example, as Figure 11b shown, in a set of symbols of the uplink transmission configured by high-layer parameters, when there are symbols of CSI-RS / PDSCH transmission scheduled by DCI, if the first symbol of this set of symbols of the uplink transmission (PUSCH and PUCCH) is within T_pro,2 + T_offset after the last symbol of receiving the DCI, the UE does not cancel the uplink transmission (therefore, canceling the uplink transmission also requires preparation time); otherwise, the uplink transmission is canceled. The uplink transmission includes PUSCH, PUCCH, and actual repetition of PUSCH.

[0113] For an HD-UE, if the high layer configures the HD-UE to transmit SRS, PUCCH, or PUSCH in a set of symbols, and the UE detects a DCI format that indicates the HD-UE receives CSI-RS or PDSCH in a symbol subset from this set of symbols, then

[0114] - if the first symbol in the symbol subset appears within T_pro,2 + T_offset relative to the last symbol of the PDCCH reception at which the HD-UE detects the DCI format, the HD-UE does not expect to cancel the transmission of PUCCH or PUSCH in the symbol subset; otherwise, the HD-UE cancels PUCCH, PUSCH, or the actual repetition of PUSCH;

[0115] - The HD-UE does not expect to cancel SRS transmissions within these symbols, which are the symbols within the symbol subset within T_pro,2 of the last symbol received for PDCCH detecting DCI format relative to the HD-UE. The HD-UE cancels SRS transmissions from the remaining symbols of the symbol subset.

[0116] T_pro,2 can be the PUSCH preparation time of UE processing capability 1, assuming d 2,1 = 1, and μ corresponds to the minimum SCS configuration between the SCS configuration of the PDCCH carrying DCI format and the SCS configurations of SRS, PUCCH, and PUSCH.

[0117] For another example, as Figure 11c shown, in a set of symbols of the uplink transmission configured by high-layer parameters, when there are symbols of DCI-scheduled CSI-RS / PDSCH transmissions, for these transmission symbols of SRS, the UE does not cancel SRS transmissions on the symbols within T_pro,2 + T_offset after receiving the last symbol of DCI, and cancels SRS transmissions on the remaining symbols.

[0118] For the HD-UE, if the high layer configures the HD-UE to transmit SRS, PUCCH, or PUSCH in a set of symbols, and the UE detects a DCI format that indicates the HD-UE receives CSI-RS or PDSCH in a symbol subset from the set of symbols, then:

[0119] - If the first symbol in the symbol subset occurs within T proc,2 of the last symbol received for PDCCH detecting DCI format relative to the HD-UE, then the HD-UE does not expect to cancel the transmission of PUCCH or PUSCH in the symbol subset; otherwise, the HD-UE cancels the actual repetition of PUCCH, PUSCH, or PUSCH.

[0120] - The HD-UE does not expect to cancel SRS transmissions on the symbols from the symbol subset that is within T proc,2 of the last symbol received for PDCCH detecting DCI format relative to the HD-UE. The HD-UE cancels SRS transmissions from the remaining symbols of the symbol subset.

[0121] Wherein, T proc,2 can be the PUSCH preparation time of UE processing capability 1, assuming d 2,1 = 1, and μ corresponds to the minimum SCS configuration between the SCS configuration of the PDCCH carrying DCI format and the SCS configurations of SRS, PUCCH, and PUSCH.

[0122] In an alternative implementation, the second rule may include at least one of the following:

[0123] 1) When the symbol of the uplink transmission configured by the high-layer parameter is located in the time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in the time domain between the symbol of the uplink transmission configured by the high-layer parameter and at least one third symbol, it is determined that there is a conflict between the symbol of the uplink transmission configured by the high-layer parameter and the transmission of the next earliest candidate SSB. Wherein, the at least one third symbol includes the symbols within the time from the first time threshold before the first symbol of the next earliest candidate SSB to the first symbol of the next earliest candidate SSB, and the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c plus the first target time offset value, N Tx-Rx is the shortest time for the half-duplex terminal to switch from transmission to reception, and T c is the basic time unit of the communication system.

[0124] 2) When the symbol of the uplink transmission configured by the high-layer parameter is located in the time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in the time domain between the symbol of the uplink transmission configured by the high-layer parameter and at least one fourth symbol, it is determined that there is a conflict between the symbol of the uplink transmission configured by the high-layer parameter and the transmission of the previous latest candidate SSB. Wherein, the at least one fourth symbol includes the symbols within the time from the last symbol of the previous latest candidate SSB to the second time threshold after the last symbol of the previous latest candidate SSB, and the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c plus the first target time offset value, N Rx-Tx is the shortest time for the half-duplex terminal to switch from reception to transmission, and T c is the basic time unit of the communication system.

[0125] In the above alternative implementation, in the conflict determination between the uplink transmission configured by the high-layer parameter and the candidate SSB, the first target time offset value is introduced, so as to avoid the problem of inconsistent understanding of the UE's UL timing between the terminal and the network-side device.

[0126] In an alternative implementation, the signal transmission of the terminal according to the second rule may include at least one of the following:

[0127] 1) When the symbols of the second uplink transmission with the third high-layer parameter configuration are located in the time domain between the transmission symbols of the candidate synchronization signal block (SSB), and when the symbols of the second uplink transmission with the seventh high-layer parameter configuration overlap with at least one third symbol in the time domain, the terminal cancels the second uplink transmission, where the at least one third symbol includes the symbols within the time from the first time threshold before the first symbol of the next earliest candidate SSB to the first symbol of the next earliest candidate SSB, and the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c plus the first target time offset value, and N Tx-Rx is the shortest time for the half-duplex terminal to switch from transmission to reception. The third uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS.

[0128] 2) When the symbols of the third uplink transmission with the fourth high-layer parameter configuration are located in the time domain between the transmission symbols of the candidate SSB, and when the symbols of the third uplink transmission overlap with at least one fourth symbol in the time domain, the terminal cancels the third uplink transmission, where the at least one fourth symbol includes the symbols within the time from the last symbol of the last latest candidate SSB relative to the third uplink transmission to the second time threshold after the last symbol of the last latest candidate SSB, and the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c plus the first target time offset value, and N Rx-Tx is the shortest time for the half-duplex terminal to switch from reception to transmission, and T c is the basic time unit of the communication system. The third uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS.

[0129] For example, as Figure 11d shown, when the symbols of the configured PUSCH / PUCCH transmission are located between the transmission symbols of the candidate SSB, if the last symbol of the PUSCH / PUCCH transmission is at least ahead of the first symbol of the next earliest SSB by N_TxRx*Tc + T_offset, the configured PUSCH / PUCCH transmission is not cancelled; otherwise, the configured PUSCH / PUCCH transmission is cancelled.

[0130] Another example, as Figure 11eAs shown, the symbols for the configured PUSCH / PUCCH transmission are located between the candidate SSB transmission symbols. If the last symbol of the PUSCH / PUCCH transmission is at least delayed by N_RxTx*Tc + T_offset compared to the last symbol of the previous latest SSB of this PUSCH / PUCCH, then the configured PUSCH / PUCCH transmission is not cancelled; otherwise, the configured PUSCH / PUCCH transmission is cancelled.

[0131] For another example, as Figure 11f shown, when the symbols for the configured SRS transmission are located between the candidate SSB transmission symbols, if some transmission symbols of the configured SRS transmission are at least advanced by N_TxRx*Tc + T_offset compared to the first symbol of the next earliest SSB, then the transmission on these symbols of the configured SRS transmission is not cancelled; otherwise, the configured SRS transmission is cancelled. When the symbols for the configured SRS transmission are located between the candidate SSB transmission symbols, if some transmission symbols of the configured SRS transmission are at least delayed by N_RxTx*Tc + T_offset compared to the last symbol of the previous latest SSB, then the transmission on these symbols of the configured SRS transmission is not cancelled; otherwise, the configured SRS transmission is cancelled.

[0132] Therefore, in the embodiments of the present application, for an HD-UE, if the HD-UE is to send PUSCH, PUCCH or SRS based on a higher layer configuration, and it is indicated in ssb PositionsInBurst in SIB1 or in ServingCellConfigCommon or through NonCellDefinitionSSB that there is an SS / PBCH block within the active DL BWP for the HD-UE, then the HD-UE does not send:

[0133] - If the last symbol of the PUSCH or PUCCH transmission is not at least N Tx-Rx ·T c + T_offset before the first symbol of the next earliest SS / PBCH block;

[0134] - If the first symbol of the PUSCH or PUCCH transmission is not at least N Tx-Rx ·T c + T_offset after the last symbol of the previous latest SS / PBCH block

[0135] - SRS among these symbols, and these symbols are not at least advanced by N Tx-Rx ·T before the first symbol of the next earliest SS / PBCH blockc +T_offset;

[0136] - For the SRS among these symbols, these symbols are not at least N after the last symbol of the previous latest SS / PBCH block Tx-Rx ·T c +T_offset.

[0137] In an optional implementation, the second rule may include: when the symbols of the DCI-scheduled uplink transmission overlap with at least one fifth symbol in the time domain, determining that there is a conflict between the DCI-scheduled uplink transmission and the candidate SSB transmission, where the at least one fifth symbol is a symbol within the first target time offset value before the first symbol of the candidate SSB transmission to the first target time offset value after the last symbol of the candidate SSB transmission, and the DCI-scheduled uplink transmission includes at least one of the following: Physical Random Access Channel (PRACH), PUSCH, PUCCH, SRS. In this optional implementation, the first target time offset value is introduced in the conflict determination between the DCI-scheduled uplink transmission and the downlink transmission of the candidate SSB, so as to avoid the problem of inconsistent understanding of UL timing between the network-side device and the terminal. Among them, the PRACH may be a PRACH based on the detected DCI format by the terminal.

[0138] In an optional implementation, the terminal's signal transmission according to the second rule may include: when the fourth uplink transmission scheduled by the third DCI overlaps with at least one fifth symbol in the time domain, the terminal cancels the fourth uplink transmission within the symbols of the candidate SSB transmission, where the fourth uplink transmission includes at least one of the following: PRACH, PUSCH, PUCCH, SRS.

[0139] For example, as Figure 11g shown, if the uplink transmission symbols scheduled by DCI overlap with the symbols from T_offset before the first symbol of the candidate SSB transmission to T_offset after the last symbol of the candidate SSB transmission, the UE does not send PUSCH / PUCCH / PRACH, and the UE does not send SRS within the overlapping symbols (the UE may send SRS transmissions outside the overlapping symbol set), and the DCI-scheduled uplink transmission includes: PRACH, PUSCH, PUCCH or SRS.

[0140] Therefore, in the embodiments of the present application, if the HD-UE transmits a PRACH, or a PUSCH, or a PUCCH based on the detected DCI format, and it is indicated in ssb PositionsInBurst in SIB1 or in ServingCellConfigCommon or by NonCellDefinitionSSB in the symbol set that there is an SS / PBCH block within the active DL BWP for the HD-UE, if the transmission symbols of the PRACH, PUSCH, or PUCCH overlap with those within T_offset before the first symbol from the symbol set or after the last symbol from the symbol set, the HD UE does not transmit the PRACH, PUSCH, or PUCCH, and if the transmission symbols of the SRS overlap with those within T_offset before the first symbol from the symbol set or after the last symbol from the symbol set, the HD UE does not transmit the SRS.

[0141] In an alternative implementation of the embodiments of the present application, the first target time offset value includes at least one of the following:

[0142] 1) The uplink and downlink scheduling timing offset value K_offset;

[0143] 2) The dedicated time offset value R_offset;

[0144] 3) A value indicated by the network side device among K_offset and R_offset;

[0145] 4) The maximum value of K_offset and R_offset;

[0146] 5) The minimum value of K_offset and R_offset;

[0147] 6) When K_offset is a cell-specific time offset value, the first target time offset value is R_offset; when K_offset is a terminal-specific time offset value, the first target time offset value is K_offset.

[0148] For example, in some embodiments, T_offset = K_offset.

[0149] In some embodiments, T_offset = K_offset - TA_offset. Among them, TA_offset is a TA deviation value dedicated to the UE, which can be determined by UE specific TA or UE TA report; or TA_offse can also be the TAtorrrence value, which is determined by the requirement of the specified TA tolerance.

[0150] In some embodiments, T_offset = R_offset. Among them, R_offset is a newly defined uplink timing offset. When there is a disagreement between the network side device and the UE side regarding the understanding of UL Timing, the collision rules for half-duplex RedCap UE can be used for determination. When the network side device does not know the TA adjusted by the UE or has not obtained the latest UEspecific TA, it may cause a disagreement between the network side and the UE side regarding the understanding of UL Timing. Therefore, T_offset can be referenced in the collision rule determination.

[0151] In some embodiments, the network side device can indicate R_offset to the UE by carrying it through SIB or DCI or MAC CE. The network side device can determine R_offset based on the location distribution of the UE and satellite ephemeris information, or determine R_offset through the TA report of the UE. Further, the network side device can also carry or indicate the update of R_offset to the UE through SIB or DCI or MACCE.

[0152] In some embodiments, R_offset is defined in units of time slot / OFDM symbol / subframe / ms / us. In some embodiments, R_offset can be related to numerology / SCS. For example, for SCS with a reference of 15 kHz, in the case of other SCS, the corresponding R_offset is obtained through scaling.

[0153] In some embodiments, it can be determined to use K_offset and / or R_offset to determine T_offset based on the indication of the network side device.

[0154] In some embodiments, T_offset = max(K_offset, R_offset). For example, when both K_offset and R_offset exist, if there is no indication from the network side device, the default value can be used, and the default value is the maximum of the two.

[0155] In some embodiments, T_offset = min(K_offset, R_offset). For example, when both K_offset and R_offset exist, if the network side device does not indicate, the default value can be used, and the default value is the minimum of the two.

[0156] In some embodiments, when UE specific K_offset is available, T_offset = K_offset. When UE specific K_offset is not available but cell specific K_offset is available, T_offset = R_offset.

[0157] In one or more of the above embodiments, the determination of T_offset may be related to numerology / SCS. For example, one example is T_offset = (2^u)*K_offset, or T_offset = (2^u)*R_offset, etc. Where u is the numerology set corresponding to the subcarrier spacing. For example, for a 15 kHz subcarrier spacing, u = 0; for a 30 kHz subcarrier spacing, u = 1; for a 60 kHz subcarrier spacing, u = 2; for a 120 kHz subcarrier spacing, u = 3; for a 240 kHz subcarrier spacing, u = 4; for a 480 kHz subcarrier spacing, u = 5.

[0158] In an alternative implementation, the third rule may include: determining that the target timing gap is the sum of the candidate timing gap and the second target time offset value, where the candidate timing gap is the timing gap used to determine the uplink transmission timing, and the candidate timing gap takes one of the following values:

[0159] N T,1 +N T,2 +C1;

[0160] N T,1 +C2;

[0161] Where N T,1 is the time corresponding to N1 symbols of the PDSCH processing time of UE processing capability 1 in the case where additional PDSCH demodulation reference signal DMRS symbols are configured;

[0162] N T,2 is the time corresponding to N2 symbols of the PUSCH processing time of UE processing capability 1;

[0163] C1 and C2 are fixed values agreed upon by the protocol.

[0164] In the related art, the Timing gap is based on DL Timing to determine the Timing for uplink transmission. However, there may be a situation where the TA adjusted on the UE side is inconsistent with the TA known to the network-side device, which may lead to inconsistent understanding of the transmission behavior. For example, the msg3 PUSCH scheduled by the network-side device to send RAR satisfies the above Timing gap. However, due to excessive adjustment of the TA by the UE, the Timing for transmitting msg3 PUSCH is within the Timing gap, resulting in the UE believing that it cannot transmit msg3 PUSCH, while the network-side device expects the UE to be able to transmit msg3 PUSCH at this time.

[0165] Therefore, to avoid the occurrence of the above situation, a gap_offset (i.e., the second target time offset value) can be added to the Timing gap in the related art.

[0166] In the above implementation, C1 and C2 can be determined according to the protocol agreement.

[0167] In some embodiments, the terminal performing signal transmission with the network-side device based on the third rule may include: when the interval between the first symbol of the target PUSCH transmission and the last symbol of receiving the first PDSCH is greater than the target timing gap, the terminal transmits the target PUSCH, where the first PDSCH is the PDSCH scheduled by the fourth DCI, and the bandwidth occupied by the first PDSCH exceeds a predetermined value, and the target PUSCH is the message 3 PUSCH scheduled by the uplink grant in the random access response RAR message included in the first PDSCH. The first PDSCH may be a PDSCH scrambled by a random access radio network temporary identifier (RA-RNTI) / message B radio network temporary identifier (MsgB-RNTI) and cyclic redundancy check (CRC). The above predetermined value can be determined according to the subcarrier spacing. For example, the predetermined value corresponding to a 15 kHz subcarrier spacing (SCS) is 25 PRBs, and the predetermined value corresponding to a 30 kHz subcarrier spacing is 12 PRBs.

[0168] For example, when the UE receives a PDSCH scheduled by DCI and scrambled by a Cyclic Redundancy Check (CRC) with a Random Access - Radio Network Temporary Identifier (RA - RNTI) / Message B Radio Network Temporary Identifier (MsgB - RNTI), the bandwidth occupied by the PDSCH exceeds 25 Physical Resource Blocks (PRBs) at a 15 kHz Subcarrier Spacing (SCS) or exceeds 12 PRBs at a 30 kHz SCS, and the PDSCH contains a Random Access Response (RAR) message, and the RAR message schedules the transmission of a msg3 Physical Uplink Shared Channel (PUSCH), as Figure 12a shown, if the interval between the first symbol of the msg3 PUSCH transmission and the last symbol of receiving the PDSCH is greater than or equal to (N T,1 + N T,2 + 1.5 + gap_offset) ms at 15 kHz SCS or (N T,1 + N T,2 + 1.0 + gap_offset) ms at 30 kHz SCS, then the UE transmits the msg3 PUSCH. In this embodiment, in the case of 15 kHz SCS, C1 = 1.5, and in the case of 30 kHz SCS, C1 = 1.0.

[0169] In some embodiments, the signal transmission between the terminal and the network - side device based on the third rule may include: when the terminal receives a second PDSCH scheduled by a fifth DCI, and the terminal cannot correctly receive the transport block TB carried in the second PDSCH, or the terminal cannot identify the Random Access Preamble Identifier (RAPID) corresponding to the transmitted Physical Random Access Channel (PRACH) from the second PDSCH, the terminal transmits a PRACH within a time not later than the target timing gap after the last symbol of the second PDSCH or after the last symbol of the RAR window.

[0170] For example, when the UE receives a PDSCH scheduled by DCI and scrambled with RA-RNTI / MsgB-RNTI CRC, the bandwidth occupied by the PDSCH exceeds 25 PRBs @ 15 kHz SCS or exceeds 12 PRBs @ 30 kHz SCS, and the UE cannot correctly receive the TB carried in the PDSCH, or the higher layers on the UE side cannot recognize the RAPID corresponding to the PRACH sent by the UE, as Figure 12b shown, the UE transmits a PRACH no later than (N T,1 + 1.75 + gap_offset) ms @ 15 kHz SCS or (N t,1 + 1.25 + gap_offset) ms @ 30 kHz SCS within the time after the last symbol of the PDSCH or the last symbol of the RAR window. In this embodiment, in the case of 15 kHz SCS, C2 = 1.75, and in the case of 30 kHz SCS, C2 = 1.25.

[0171] In some embodiments, the signal transmission between the terminal and the network-side device based on the third rule may include: when the interval between the first symbol of the target PUCCH transmission and the last symbol of receiving the third PDSCH is greater than the target timing gap, the terminal transmits the target PUCCH, where the third PDSCH is the PDSCH scheduled by the sixth DCI, and the bandwidth occupied by the third PDSCH exceeds a predetermined value, the third PDSCH carries a successful random access response, and the target PUCCH is a PUCCH for feedback on the third PDSCH.

[0172] For example, when the UE receives a PDSCH scheduled by DCI and scrambled with MsgB-RNTI CRC, the bandwidth occupied by the PDSCH exceeds 25 PRBs @ 15 kHz SCS or exceeds 12 PRBs @ 30 kHz SCS, and the PDSCH carries an RAR message for UE successRAR, as Figure 12c shown, if the interval between the first symbol of the PUCCH transmission for HARQ-ACK feedback on the PDSCH and the last symbol of receiving the PDSCH is greater than or equal to (N T,1 + 1.5 + gap_offset) ms @ 15 kHz SCS or (N T,1 + 1.0 + gap_offset) ms @ 30 kHz SCS, then the UE transmits the PUCCH transmission.

[0173] Therefore, in the embodiments of the present application, in the following cases:

[0174] - The UE receives the PDSCH scheduled by DCI format on multiple physical resource blocks (PRBs) greater than 25 PRBs for 15 kHz SCS or greater than 12 PRBs for 30 kHz SCS, where the CRC is scrambled by RA-RNTI or MsgB RNTI, and

[0175] - The PDSCH includes a RAR message with a RAR UL grant, and the RAR message schedules the Msg3 PUSCH transmission from the UE;

[0176] If the time between the last symbol of the PDSCH reception for transmitting the RAR message and the first symbol of the Msg3 PUSCH transmission is not less than N T,1 +N T,2 +1.5 + gap_offset milliseconds for 15 kHz SCS or not less than N T,1 +N T,2 +1.0 + gap_offset milliseconds for 30 kHz SCS, then the terminal transmits the Msg3 PUSCH, or; otherwise, the UE behavior is based on UE implementation.

[0177] In the following cases:

[0178] - The UE receives the PDSCH scheduled by DCI format on multiple PRBs greater than 25 PRBs for 15 kHz SCS or greater than 12 PRBs for 30 kHz SCS, where the CRC is scrambled by RA-RNTI or MsgB RNTI, and

[0179] - The UE does not correctly receive the transport block provided by the PDSCH, or if the higher layer at the UE does not recognize the RAPID associated with the corresponding PRACH transmission from the UE;

[0180] After the last symbol of the PDSCH reception, or after the last symbol of the window described in Articles 8.2 and 8.2A of the protocol, the UE shall be ready to send the PRACH no later than N T,1 +1.75 + gap_offset milliseconds (for 15 kHz SCS) or no later than N T,1 +1.25 + gap_offse milliseconds (for 30 kHz SCS).

[0181] In the following cases:

[0182] - The UE receives PDSCH scheduled by DCI format on multiple PRBs, where the DCI format has a CRC scrambled by MsgB RNTI, and the multiple PRBs are greater than 25 PRBs for 15 kHz SCS or greater than 12 PRBs for 30 kHz SCS, and

[0183] - The PDSCH includes an RAR message for the successRAR of the UE;

[0184] If the time between the last symbol received by the PDSCH transmitting the RAR message and the first symbol of the PUCCH transmission is not less than N T,1 +1.5+gap_offset milliseconds for 15 kHz SCS or not greater than N T,1 +1.0+gap_offset milliseconds for 30 kHz SCS, the UE sends a PUCCH with HARQ-ACK information; otherwise, the UE behavior is based on UE implementation.

[0185] In the embodiments of the present application, the second target time offset value includes at least one of the following:

[0186] a) The first target time offset value;

[0187] b) Cell-specific K_offset;

[0188] c) The target delay difference between the edge user and the central user;

[0189] d) The target time advance TA difference between the edge user and the central user;

[0190] e) The difference between the target delay difference and the target TA difference.

[0191] In the embodiments of the present application, gap_offset can be equal to T_offset or a newly defined offset value, specified by the protocol or indicated by SIB, and its value can be cell specific K_offset, or the delay difference or TA difference between the edge user and the central user, or the difference between the former two.

[0192] Through the technical solutions provided by the embodiments of the present application, the problem of inconsistent transmission behavior under collision rules due to inconsistent UL timing can be solved, enabling the transceiver to have a consistent understanding of the specified transmission behavior in case of transmission conflicts and ensuring the effectiveness of transmission.

[0193] Based on the same inventive concept, the embodiments of the present application also provide another signal transmission method.

[0194] Figure 13Another schematic flowchart of the signal transmission method provided by the embodiments of the present application is shown. This method 1300 can be executed by a network-side device. In other words, the method can be executed by software or hardware installed on the network-side device. The network-side device includes, but is not limited to Figure 1 the base station in

[0195] As Figure 13 shown, the method may include the following steps.

[0196] S1310, the network-side device performs signal transmission with the terminal according to the target rule used by the terminal.

[0197] Among them, the target rule includes at least one of the following:

[0198] The first rule, used to indicate preferential downlink transmission;

[0199] The second rule, used to perform collision determination based on the first target time offset value or perform signal transmission based on the first target time offset value;

[0200] The third rule, used to determine the target timing gap (GAP) based on the second target time offset value.

[0201] In the embodiments of the present application, the network-side device performs signal transmission with the terminal according to the target rule used by the terminal, so as to ensure the consistency of the behavior between the network-side device and the terminal.

[0202] In the above implementation manner, the network-side device can, according to the first rule, when at least some symbols of downlink transmission and uplink transmission overlap in the time domain, the network-side device receives the downlink transmission of the terminal, ensuring the consistency of the behavior between the network-side device and the terminal.

[0203] In the embodiments of the present application, the second rule is the same as the second rule in method 1000. For specific details, reference can be made to the relevant description in method 1000.

[0204] In an optional implementation manner, the network-side device performing signal transmission with the terminal according to the second rule used by the terminal includes at least one of the following:

[0205] 1) When there is an overlap in the time domain between the symbols of the uplink transmission scheduled by the first DCI and at least one first symbol, the network device receives the uplink transmission scheduled by the first DCI transmitted by the terminal, where the at least one first symbol is the symbol within the time from the first target time offset value before the first symbol of the first set of symbols of the downlink transmission configured by the first high-layer parameter to the first target time offset value after the last symbol of the first set of symbols;

[0206] 2) When there is an overlap in the time domain between the symbols of the downlink transmission scheduled by the second DCI and at least one second symbol, the network device receives the first uplink transmission of the terminal within the first time period, where the first uplink transmission is the uplink transmission configured by the second high-layer parameter, the at least one second symbol includes the symbol within the time from the third target time offset value before the first symbol of the first uplink transmission to the third target time offset value after the last symbol of the first uplink transmission, the first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS, the first time period is the time within the third target time offset value after receiving the last symbol of the second DCI, the second time period is the time after the third target time offset value after receiving the last symbol of the second DCI, the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time of the physical uplink channel transmission.

[0207] Through the above implementation manners, it can be ensured that when there is an overlap in the time domain between the symbols of the uplink transmission scheduled by the first DCI and at least one first symbol, and when there is an overlap in the time domain between the symbols of the downlink transmission scheduled by the second DCI and at least one second symbol, the behaviors of the network device and the terminal are consistent.

[0208] In an optional implementation manner, the method may further include: the network device indicates at least one of the following to the terminal:

[0209] The time offset value R_offset dedicated to the first target time offset value;

[0210] The first target time offset value is one value of K_offset and R_offset;

[0211] The second target time offset value is the cell-specific K_offset;

[0212] The second target time offset value is the target time delay difference between the edge user and the central user;

[0213] The second target time offset value is the difference in target Time Advance (TA) between the edge user and the central user;

[0214] The second target time offset value is the difference between the target delay difference and the target TA difference.

[0215] In the above implementation, the network - side device can indicate the first target time offset value and the second target time offset value to the terminal, so that the network - side device and the terminal have a consistent understanding of the first target time offset value and the second target time offset value. Of course, it is not limited to this. In practical applications, the values of the first target time offset value and the second target time offset value can also be agreed upon by the protocol, or the values of the first target time offset value and the second target time offset value can be set by default.

[0216] Through the above - mentioned technical solutions provided by the embodiments of the present application, it can be applied to the transmission of half - duplex RedCap UEs in the NTN scenario, and can solve the problem that the transmission behaviors under the collision rules are inconsistent due to inconsistent UL timing, so that in the case of transmission conflicts, the transceiver has a consistent understanding of the specified transmission behaviors, ensuring the effectiveness of the transmission.

[0217] In the signal transmission method provided by the embodiments of the present application, the execution subject can be a signal transmission device. In the embodiments of the present application, taking the signal transmission device as an example to execute the signal transmission method, the signal transmission device provided by the embodiments of the present application is described.

[0218] Figure 14 A schematic structural diagram of the signal transmission device provided by the embodiments of the present application is shown, as Figure 14 shown, the device 1400 mainly includes: a first determination module 1401 and a first transmission module 1402.

[0219] In the embodiments of the present application, the first determination module 1401 is used to determine the target rule; the first transmission module 1402 is used to perform signal transmission with the network - side device according to the target rule;

[0220] Among them, the target rule includes at least one of the following:

[0221] The first rule is used to indicate preferential downlink transmission;

[0222] The second rule is used to perform collision determination based on the first target time offset value or perform signal transmission based on the first target time offset value;

[0223] The third rule is used to determine the target timing gap (GAP) based on the second target time offset value.

[0224] In an optional implementation, the first transmission module 1402 performing signal transmission according to the first rule includes:

[0225] When at least some symbols of the uplink transmission and the downlink transmission overlap in the time domain, receiving the downlink transmission; the downlink transmission includes at least one of the following: PDCCH, PDSCH, CSI-RS, DL PRS.

[0226] In an optional implementation, the second rule includes at least one of the following:

[0227] When the symbols of the uplink transmission scheduled by DCI overlap with at least one first symbol in the time domain, it is determined that there is a conflict between the uplink transmission scheduled by DCI and the downlink transmission configured by high-layer parameters, where the at least one first symbol includes the symbols within the time from the first target time offset value before the first symbol of the downlink transmission configured by high-layer parameters to the first target time offset value after the last symbol of the downlink transmission configured by high-layer parameters, and the downlink transmission configured by high-layer parameters includes at least one of the following: PDCCH, PDSCH, CSI-RS, DL PRS;

[0228] When the symbols of the downlink transmission scheduled by DCI overlap with at least one second symbol in the time domain, it is determined that there is a conflict between the downlink transmission scheduled by DCI and the uplink transmission configured by high-layer parameters, where the at least one second symbol includes the symbols within the time from the third target time offset value before the first symbol of the uplink transmission configured by high-layer parameters to the third target time offset value after the last symbol of the uplink transmission configured by high-layer parameters, and the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time for physical uplink channel transmission;

[0229] When the symbols of the uplink transmission configured by high-layer parameters are located between the transmission symbols of the candidate synchronization signal block SSB in the time domain, and the symbols of the uplink transmission configured by high-layer parameters overlap with at least one third symbol in the time domain, it is determined that there is a conflict between the symbols of the uplink transmission configured by high-layer parameters and the transmission of the next earliest candidate SSB, where the at least one third symbol includes the symbols within the time from the first time threshold before the first symbol of the next earliest candidate SSB to the first symbol of the next earliest candidate SSB, and the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c The sum with the first target time offset value, N Tx-Rx Is the shortest time for the half-duplex terminal to switch from transmission to reception, Tc is the basic time unit of the communication system;

[0230] When the symbol of the uplink transmission configured by the high-layer parameter is located in the time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in the time domain between the symbol of the uplink transmission configured by the high-layer parameter and at least one fourth symbol, it is determined that there is a conflict between the symbol of the uplink transmission configured by the high-layer parameter and the transmission of the last latest candidate SSB. Wherein, the at least one fourth symbol includes the symbols within the time of the second time threshold after the last symbol of the last latest candidate SSB, starting from the last symbol of the last latest candidate SSB, and the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c summed with the first target time offset value, N Rx-Tx is the shortest time for the half-duplex terminal to switch from reception to transmission, T c is the basic time unit of the communication system;

[0231] When there is an overlap in the time domain between the symbol of the uplink transmission scheduled by DCI and at least one fifth symbol, it is determined that there is a conflict between the uplink transmission scheduled by DCI and the transmission of the candidate SSB. Wherein, the at least one fifth symbol is the symbol within the first target time offset value before the first symbol of the transmission of the candidate SSB to the first target time offset value after the last symbol of the transmission of the candidate SSB, and the uplink transmission scheduled by DCI includes at least one of the following: PRACH, PUSCH, PUCCH, SRS.

[0232] In an optional implementation manner, the first transmission module 1402 performing signal transmission according to the second rule includes at least one of the following:

[0233] When there is an overlap in the time domain between the symbol of the uplink transmission scheduled by the first DCI and at least one first symbol, transmit the uplink transmission scheduled by the first DCI and do not receive the downlink transmission configured by the first high-layer parameter. Wherein, the at least one first symbol is the symbol within the time of the first target time offset value before the first symbol of the first group of symbols of the downlink transmission configured by the first high-layer parameter to the first target time offset value after the last symbol of the first group of symbols;

[0234] In the case where the symbols of the downlink transmission scheduled by the second DCI overlap with at least one second symbol in the time domain, the first uplink transmission within the first time period is not cancelled, and the first uplink transmission within the second time period is cancelled, where the first uplink transmission is an uplink transmission configured by a second high-layer parameter, the at least one second symbol includes symbols within the time from a third target time offset value before the first symbol of the first uplink transmission to the third target time offset value after the last symbol of the first uplink transmission, the first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS, the first time period is the time within the third target time offset value after the last symbol of receiving the second DCI, the second time period is the time after the third target time offset value after the last symbol of receiving the second DCI, the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time for physical uplink channel transmission;

[0235] In the case where the symbols of the second uplink transmission configured by a third high-layer parameter are located between the transmission symbols of a candidate synchronization signal block SSB in the time domain, and the symbols of the second uplink transmission configured by a seventh high-layer parameter overlap with at least one third symbol in the time domain, the second uplink transmission is cancelled, where the at least one third symbol includes symbols within the time from a first time threshold before the first symbol of the next earliest candidate SSB to the time of the first symbol of the next earliest candidate SSB, the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c plus the first target time offset value, N Tx-Rx is the shortest time for a half-duplex terminal to switch from transmission to reception, and the third uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS;

[0236] In the case where the symbols of the third uplink transmission configured by a fourth high-layer parameter are located between the transmission symbols of a candidate synchronization signal block SSB in the time domain, and the symbols of the third uplink transmission overlap with at least one fourth symbol in the time domain, the third uplink transmission is cancelled, where the at least one fourth symbol includes symbols within the time from the last symbol of the previous latest candidate SSB relative to the third uplink transmission to the second time threshold after the last symbol of the previous latest candidate SSB, the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c plus the first target time offset value, N Rx-Tx is the shortest time for a half-duplex terminal to switch from reception to transmission, Tc As the basic time unit of the communication system, the third uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS;

[0237] When there is an overlap in the time domain between the fourth uplink transmission scheduled by the third DCI and at least one fifth symbol, cancel the fourth uplink transmission within the symbol of the transmission of the candidate SSB, where the fourth uplink transmission includes at least one of the following: PRACH, PUSCH, PUCCH, SRS.

[0238] In an optional implementation, the third rule includes: determining that the target timing gap is the sum of the candidate timing gap and the second target time offset value, where the candidate timing gap is the timing gap used to determine the uplink transmission timing, and the value of the candidate timing gap includes one of the following:

[0239] N T,1 +N T,2 +C1;

[0240] N T,1 +C ２ ;

[0241] where N Ｔ,１ is the time corresponding to N1 symbols corresponding to the PDSCH processing time of UE processing capability 1 in the case where additional PDSCH demodulation reference signal DMRS symbols are configured;

[0242] N T,2 is the time corresponding to N2 symbols corresponding to the PUSCH processing time of UE processing capability 1;

[0243] C1 and C2 are fixed values agreed upon by the protocol.

[0244] In an optional implementation, the first transmission module performs signal transmission with the network side device based on the third rule, including at least one of the following:

[0245] When the interval between the first symbol of the target PUSCH transmission and the last symbol of receiving the first PDSCH is greater than the target timing gap, transmit the target PUSCH, where the first PDSCH is the PDSCH scheduled by the fourth DCI, and the bandwidth occupied by the first PDSCH exceeds a predetermined value, and the target PUSCH is the message 3 PUSCH scheduled by the uplink grant in the random access response RAR message included in the first PDSCH;

[0246] When the second PDSCH scheduled by the fifth DCI is received and the transport block TB carried in the second PDSCH cannot be correctly received, or the random access preamble identifier RAPID corresponding to the transmitted PRACH cannot be identified from the second PDSCH, the PRACH is transmitted within a time not later than the target timing gap after the last symbol of the second PDSCH or after the last symbol of the RAR window.

[0247] When the interval between the first symbol of the target PUCCH transmission and the last symbol of receiving the third PDSCH is greater than the target timing gap, the target PUCCH is transmitted, where the third PDSCH is the PDSCH scheduled by the sixth DCI, the bandwidth occupied by the third PDSCH exceeds a predetermined value, the third PDSCH carries a successful random access response, and the target PUCCH is the PUCCH for feeding back the third PDSCH.

[0248] In an optional implementation, the first target time offset value includes at least one of the following:

[0249] Uplink and downlink scheduling timing offset value K_offset;

[0250] Dedicated time offset value R_offset;

[0251] A value indicated by the network side device among K_offset and R_offset;

[0252] The maximum value of K_offset and R_offset;

[0253] The minimum value of K_offset and R_offset;

[0254] When K_offset is a cell-specific time offset value, the first target time offset value is R_offset; when K_offset is a terminal-specific time offset value, the first target time offset value is K_offset.

[0255] In an optional implementation, the second target time offset value includes at least one of the following:

[0256] The first target time offset value;

[0257] Cell-specific K_offset;

[0258] The target delay difference between the edge user and the central user;

[0259] The target time advance TA difference between the edge user and the central user;

[0260] The difference between the target time delay difference and the target TA difference.

[0261] The signal transmission device 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 other devices other than terminals. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 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.

[0262] The signal transmission device provided in the embodiments of the present application can implement Figure 10 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0263] Figure 15 Another schematic structural diagram of the signal transmission device provided in the embodiments of the present application is shown, as Figure 15 shown, the device 1500 mainly includes: a second determination module 1501 and a second transmission module 1502.

[0264] In the embodiments of the present application, the second determination module 1501 is configured to determine a target rule used by the terminal; the second transmission module 1502 is configured to perform signal transmission with the terminal according to the target rule used by the terminal;

[0265] wherein, the target rule includes at least one of the following:

[0266] The first rule is used to indicate preferential downlink transmission;

[0267] The second rule is used to perform conflict determination based on a first target time offset value or perform signal transmission based on the first target time offset value;

[0268] The third rule is used to determine a target timing gap GAP based on a second target time offset value.

[0269] In an optional implementation manner, the second transmission module 1502 performing signal transmission with the terminal according to the second rule used by the terminal includes at least one of the following:

[0270] In a case where a symbol of an uplink transmission scheduled by a first DCI overlaps with at least one first symbol in the time domain, the uplink transmission scheduled by the first DCI transmitted by the terminal, where the at least one first symbol is a symbol within a time period from the first target time offset value before the first symbol of a first group of symbols of a downlink transmission configured by the first high-layer parameter to the first target time offset value after the last symbol of the first group of symbols;

[0271] In a case where a symbol of a downlink transmission scheduled by a second DCI overlaps with at least one second symbol in the time domain, receive the first uplink transmission of the terminal within a first time period, where the first uplink transmission is an uplink transmission configured by a second high-layer parameter, the at least one second symbol includes a symbol within a time period from the third target time offset value before the first symbol of the first uplink transmission to the third target time offset value after the last symbol of the first uplink transmission, the first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS, the first time period is a time within the third target time offset value after receiving the last symbol of the second DCI, the second time period is a time after the third target time offset value after receiving the last symbol of the second DCI, the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time of a physical uplink channel transmission.

[0272] In an optional implementation, the second transmission module 1502 is further configured to indicate at least one of the following to the terminal:

[0273] A time offset value R_offset dedicated to the first target time offset value;

[0274] The first target time offset value is one value of K_offset and R_offset;

[0275] The second target time offset value is a cell-specific K_offset;

[0276] The second target time offset value is a target delay difference between an edge user and a central user;

[0277] The second target time offset value is a target time advance TA difference between an edge user and a central user;

[0278] The second target time offset value is a difference between the target delay difference and the target TA difference.

[0279] The signal transmission device provided by the embodiments of the present application can implement Figure 13The various processes implemented by the method embodiments achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0280] As Figure 16 shown, an embodiment of the present application further provides a communication device 1600, including a processor 1601 and a memory 1602. A program or instruction that can run on the processor 1601 is stored on the memory 1602. For example, when the communication device 1600 is a terminal, when the program or instruction is executed by the processor 1601, it implements each step of the above-mentioned signal transmission method 1000 embodiment and can achieve the same technical effects. When the communication device 1600 is a network-side device, when the program or instruction is executed by the processor 1601, it implements each step of the above-mentioned signal transmission method 1300 embodiment and can achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0281] An embodiment of the present application further provides a terminal, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the steps in the method embodiment as Figure 10 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 can achieve the same technical effects. Specifically, Figure 17 FIG. is a schematic hardware structure diagram of a terminal for implementing an embodiment of the present application.

[0282] The terminal 1700 includes, but is not limited to, at least some components such as a radio frequency unit 1701, a network module 1702, an audio output unit 1703, an input unit 1704, a sensor 1705, a display unit 1706, a user input unit 1707, an interface unit 1708, a memory 1709, and a processor 1710.

[0283] Those skilled in the art can understand that the terminal 1700 may further include a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 1710 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 17 The terminal structure shown in FIG. 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.

[0284] It should be understood that in the embodiments of the present application, the input unit 1704 may include a Graphics Processing Unit (GPU) 17041 and a microphone 17042. The graphics processing unit 17041 processes the image data of static pictures or videos obtained by an image capturing device (such as a camera) in the video capture mode or the image capture mode. The display unit 1706 may include a display panel 17061, and the display panel 17061 may be configured in the form of, for example, a liquid crystal display, an organic light emitting diode, etc. The user input unit 1707 includes at least one of a touch panel 17071 and other input devices 17072. The touch panel 17071 is also referred to as a touch screen. The touch panel 17071 may include two parts: a touch detection device and a touch controller. The other input devices 17072 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.

[0285] In the embodiments of the present application, after receiving the downlink data from the network side device, the radio frequency unit 1701 may transmit it to the processor 1710 for processing; in addition, the radio frequency unit 1701 may send the uplink data to the network side device. Generally, the radio frequency unit 1701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0286] The memory 1709 can be used to store software programs or instructions and various data. The memory 1709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1709 may include volatile memory or non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 1709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0287] The processor 1710 may include one or more processing units; optionally, the processor 1710 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 1710 either.

[0288] Among them, the processor 1710 is used to determine a target rule;

[0289] The radio frequency unit 1701 is used to perform signal transmission with a network-side device according to the target rule;

[0290] Among them, the target rule includes at least one of the following:

[0291] A first rule, which is used to indicate that downlink transmission is preferred;

[0292] The second rule is used for conflict determination based on the first target time offset value or for signal transmission based on the first target time offset value;

[0293] The third rule is used to determine the target timing gap GAP based on the second target time offset value.

[0294] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of Method Embodiment 1000 and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0295] This embodiment of the present application further provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement as Figure 13 shown in the steps of the method embodiment. This embodiment of the network-side device corresponds to the above-mentioned network-side device method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this embodiment of the network-side device and can achieve the same technical effects.

[0296] Specifically, this embodiment of the present application further provides a network-side device. As Figure 18 shown, the network-side device 1800 includes: an antenna 1801, a radio frequency device 1802, a baseband device 1803, a processor 1804, and a memory 1805. The antenna 1801 is connected to the radio frequency device 1802. In the uplink direction, the radio frequency device 1802 receives information through the antenna 1801 and sends the received information to the baseband device 1803 for processing. In the downlink direction, the baseband device 1803 processes the information to be sent and sends it to the radio frequency device 1802. After processing the received information, the radio frequency device 1802 sends it out through the antenna 1801.

[0297] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1803, and the baseband device 1803 includes a baseband processor.

[0298] The baseband device 1803 may include, for example, at least one baseband board, and multiple chips are arranged on the baseband board. As Figure 18 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1805 through a bus interface to call the program in the memory 1805 and execute the network device operations shown in the above method embodiments.

[0299] The network-side device may further include a network interface 1806, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0300] Specifically, the network-side device 1800 in the embodiments of the present application further includes instructions or programs stored in the memory 1805 and executable on the processor 1804. The processor 1804 calls the instructions or programs in the memory 1805 to execute Figure 15 the methods executed by the modules shown in the figure, and achieves the same technical effects. To avoid repetition, they will not be elaborated here.

[0301] 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, the various processes of the above signal transmission method 1000 or the signal transmission method 1300 embodiments are implemented, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0302] Wherein, the processor is the processor in the terminal described in the above embodiments. 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.

[0303] 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, and the processor is used to run programs or instructions to implement the various processes of the above signal transmission method 1000 or the signal transmission method 1300 embodiments, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0304] 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.

[0305] 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 the various processes of the above signal transmission method 1000 or the signal transmission method 1300 embodiments, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0306] The embodiments of the present application further provide a wireless communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the above signal transmission method 1000, and the network-side device can be used to execute the steps of the above signal transmission method 1300.

[0307] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus including a series of elements not only includes those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "including one..." does not exclude the presence of additional identical elements in the process, method, article or apparatus including 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, features described with reference to certain examples may be combined in other examples.

[0308] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments 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 the various embodiments of the present application.

[0309] 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 purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A signal transmission method, characterized in that, Including: The terminal performs signal transmission with the network - side device according to a target rule, where the target rule includes at least one of the following: The first rule, which is used to indicate preferential downlink transmission; The second rule, which is used to perform collision determination based on a first target time offset value or perform signal transmission based on the first target time offset value; The third rule, which is used to determine a target timing gap (GAP) based on a second target time offset value.

2. The method according to claim 1, wherein The terminal performing signal transmission according to the first rule includes: In the case where at least some symbols of uplink transmission and downlink transmission overlap in the time domain, the terminal receives the downlink transmission; the downlink transmission includes at least one of the following: Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information Reference Signal (CSI - RS), Downlink Positioning Reference Signal (DL PRS).

3. The method according to claim 1, wherein The second rule includes at least one of the following: In the case where the symbols of the uplink transmission scheduled by Downlink Control Information (DCI) overlap with at least one first symbol in the time domain, it is determined that there is a conflict between the uplink transmission scheduled by DCI and the downlink transmission configured by high - layer parameters, where the at least one first symbol includes the symbols within the time range from the first target time offset value before the first symbol of the downlink transmission configured by high - layer parameters to the first target time offset value after the last symbol of the downlink transmission configured by high - layer parameters, and the downlink transmission configured by high - layer parameters includes at least one of the following: PDCCH, PDSCH, CSI - RS, DL PRS; In the case where the symbols of the downlink transmission scheduled by DCI overlap with at least one second symbol in the time domain, it is determined that there is a conflict between the downlink transmission scheduled by DCI and the uplink transmission configured by high - layer parameters, where the at least one second symbol includes the symbols within the time range from the third target time offset value before the first symbol of the uplink transmission configured by high - layer parameters to the third target time offset value after the last symbol of the uplink transmission configured by high - layer parameters, and the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time of physical uplink channel transmission; When the symbols of the uplink transmission configured by the higher layer are located in time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in time domain between the symbols of the uplink transmission configured by the higher layer and at least one third symbol, it is determined that there is a conflict between the symbols of the uplink transmission configured by the higher layer and the transmission of the next earliest candidate SSB, where the at least one third symbol includes the symbols within the time from the first time threshold before the first symbol of the next earliest candidate SSB to the first symbol of the next earliest candidate SSB, and the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c plus the first target time offset value, and N Tx-Rx is the shortest time for the half-duplex terminal to switch from transmission to reception, and Y c is the basic time unit of the communication system; When the symbols of the uplink transmission configured by the high-layer parameters are located in time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in time domain between the symbols of the uplink transmission configured by the high-layer parameters and at least one fourth symbol, it is determined that there is a conflict between the symbols of the uplink transmission configured by the high-layer parameters and the transmission of the last latest candidate SSB, where the at least one fourth symbol includes the symbols within a second time threshold starting from the last symbol of the last latest candidate SSB up to the time after the last symbol of the last latest candidate SSB, and the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c plus the first target time offset value, N Rx-Tx is the shortest time for the half-duplex terminal to switch from reception to transmission, T c is the basic time unit of the communication system; In the case where the symbols of the uplink transmission scheduled by DCI overlap with at least one fifth symbol in the time domain, it is determined that there is a conflict between the uplink transmission scheduled by DCI and the candidate Synchronization Signal Block (SSB) transmission, where the at least one fifth symbol is within the time range from the first target time offset value before the first symbol of the candidate SSB transmission to the first target time offset value after the last symbol of the candidate SSB transmission, and the uplink transmission scheduled by DCI includes at least one of the following: Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS).

4. The method according to claim 1 or 3, characterized in that, The terminal performing signal transmission according to the second rule includes at least one of the following: When the symbols of the uplink transmission scheduled by the first DCI overlap with at least one first symbol in the time domain, the terminal transmits the uplink transmission scheduled by the first DCI and does not receive the downlink transmission configured with the first high-layer parameter, where the at least one first symbol is the symbol within the time from the first target time offset value before the first symbol of the first set of symbols of the downlink transmission configured with the first high-layer parameter to the first target time offset value after the last symbol of the first set of symbols; When the symbols of the downlink transmission scheduled by the second DCI overlap with at least one second symbol in the time domain, the terminal does not cancel the first uplink transmission within the first time period and cancels the first uplink transmission within the second time period, where the first uplink transmission is the uplink transmission configured with the second high-layer parameter, the at least one second symbol includes the symbol within the time from the third target time offset value before the first symbol of the first uplink transmission to the third target time offset value after the last symbol of the first uplink transmission, the first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS, the first time period is the time within the third target time offset value after the last symbol of receiving the second DCI, the second time period is the time after the third target time offset value after the last symbol of receiving the second DCI, the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time of the physical uplink channel transmission; When the symbols of the second uplink transmission in the third high-layer parameter configuration are located in time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in time domain between the symbols of the second uplink transmission in the seventh high-layer parameter configuration and at least one third symbol, where the at least one third symbol includes the symbols within the time from the first time threshold before the first symbol of the next earliest candidate SSB after the second uplink transmission to the first symbol of the next earliest candidate SSB, and the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c plus the first target time offset value, and N Tx-Rx is the shortest time for the half-duplex terminal to switch from transmission to reception, and the second uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS; When the symbols of the third uplink transmission in the fourth high-layer parameter configuration are located in time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in time domain between the symbols of the third uplink transmission and at least one fourth symbol, the terminal cancels the third uplink transmission, where the at least one fourth symbol includes the symbols within a time period from the last symbol of the last latest candidate SSB relative to the third uplink transmission to the second time threshold after the last symbol of the last latest candidate SSB, and the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c plus the first target time offset value, where N Rx-Tx is the shortest time for the half-duplex terminal to switch from reception to transmission, and T c is the basic time unit of the communication system. The third uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS; When the fourth uplink transmission scheduled by the third DCI overlaps with at least one fifth symbol in the time domain, the terminal cancels the fourth uplink transmission within the symbols of the transmission of the candidate SSB, where the fourth uplink transmission includes at least one of the following: PRACH, PUSCH, PUCCH, SRS.

5. The method according to claim 1, wherein The third rule includes: determining that the target timing gap is the sum of the candidate timing gap and the second target time offset value, where the candidate timing gap is the timing gap used to determine the uplink transmission timing, and the value of the candidate timing gap includes one of the following: N T,1 +N T,2 +C1; N T,1 + C2; where N T,1 is the time corresponding to N1 symbols corresponding to the PDSCH processing time of UE processing capability 1 in the case where additional PDSCH demodulation reference signal DMRS symbols are configured; N T,2 The time corresponding to N2 symbols corresponding to the PUSCH processing time for UE processing capability 1; C1 and C2 are fixed values agreed upon by the protocol.

6. The method according to claim 1 or 5, characterized in that, The terminal performs signal transmission with the network-side device based on the third rule, including at least one of the following: When the interval between the first symbol of the target PUSCH transmission and the last symbol of receiving the first PDSCH is greater than the target timing gap, the terminal transmits the target PUSCH, where the first PDSCH is the PDSCH scheduled by the fourth DCI and the bandwidth occupied by the first PDSCH exceeds a predetermined value, and the target PUSCH is the message 3 PUSCH scheduled by the uplink grant in the random access response RAR message included in the first PDSCH; When the terminal receives the second PDSCH scheduled by the fifth DCI, and the terminal cannot correctly receive the transport block TB carried in the second PDSCH, or the terminal cannot identify the random access preamble identifier RAPID corresponding to the transmitted PRACH from the second PDSCH, the terminal transmits the PRACH within a time not later than the target timing gap after the last symbol of the second PDSCH or after the last symbol of the RAR window; When the interval between the first symbol of the target PUCCH transmission and the last symbol of receiving the third PDSCH is greater than the target timing gap, the terminal transmits the target PUCCH, where the third PDSCH is the PDSCH scheduled by the sixth DCI, and the bandwidth occupied by the third PDSCH exceeds a predetermined value, the third PDSCH carries a successful random access response, and the target PUCCH is the PUCCH for providing feedback on the third PDSCH.

7. The method according to any one of claims 1 to 6, characterized in that, The first target time offset value includes at least one of the following: The uplink and downlink scheduling timing offset value K_offset; The dedicated time offset value R_offset; One value indicated by the network side device among K_offset and R_offset; The maximum value among K_offset and R_offset; The minimum value among K_offset and R_offset; When K_offset is the cell-specific time offset value, the first target time offset value is R_offset; when K_offset is the terminal-specific time offset value, the first target time offset value is K_offset.

8. The method according to any one of claims 1 to 7, characterized in that, The second target time offset value includes at least one of the following: The first target time offset value; The cell-specific K_offset; The target delay difference between the edge user and the central user; The target time advance TA difference between the edge user and the central user; The difference between the target delay difference and the target TA difference.

9. A signal transmission method, characterized in that, Including: The network side device performs signal transmission with the terminal according to the target rules used by the terminal, where the target rules include at least one of the following: The first rule, used to indicate preferential downlink transmission; The second rule, used to perform conflict determination based on the first target time offset value or perform signal transmission based on the first target time offset value; The third rule, used to determine the target timing gap GAP based on the second target time offset value.

10. The method according to claim 9, characterized in that, The network side device performing signal transmission with the terminal according to the second rule used by the terminal includes at least one of the following: In a case where symbols of an uplink transmission scheduled by a first DCI overlap with at least one first symbol in the time domain, the network side device receives the uplink transmission scheduled by the first DCI transmitted by the terminal, where the at least one first symbol is a symbol within a time period from a first target time offset value before a first symbol of a first set of symbols of a downlink transmission configured by a first high layer parameter to a first target time offset value after a last symbol of the first set of symbols; In a case where symbols of a downlink transmission scheduled by a second DCI overlap with at least one second symbol in the time domain, the network side device receives a first uplink transmission of the terminal within a first time period, where the first uplink transmission is an uplink transmission configured by a second high layer parameter, the at least one second symbol includes a symbol within a time period from a third target time offset value before a first symbol of the first uplink transmission to a third target time offset value after a last symbol of the first uplink transmission, the first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS, the first time period is a time within a third target time offset value after a last symbol of receiving the second DCI, the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to a sum of the first target time offset value and a preparation time for physical uplink channel transmission.

11. The method according to claim 9 or 10, characterized in that The method further includes: The network side device indicates at least one of the following to the terminal: A time offset value R_offset dedicated to the first target time offset value; The first target time offset value is one value of K_offset and R_offset; The second target time offset value is a cell-specific K_offset; The second target time offset value is a target delay difference between an edge user and a central user; The second target time offset value is a target TA difference between an edge user and a central user; The second target time offset value is a difference between the target delay difference and the target TA difference.

12. A signal transmission device, characterized in that, Including: A first determination module, configured to determine a target rule; A first transmission module, configured to perform signal transmission with the network side device according to the target rule; Wherein, the target rule includes at least one of the following: A first rule, used to indicate preferentially performing downlink transmission; A second rule, used to perform conflict determination based on a first target time offset value or perform signal transmission based on a first target time offset value; A third rule, used to determine a target timing gap GAP based on a second target time offset value.

13. The device according to claim 12, characterized in that, The first transmission module performing signal transmission according to the first rule includes: In a case where at least some symbols of an uplink transmission and a downlink transmission overlap in the time domain, receiving the downlink transmission; the downlink transmission includes at least one of the following: PDCCH, PDSCH, CSI-RS, DL PRS.

14. The device according to claim 12, characterized in that, The second rule includes at least one of the following: When there is an overlap in the time domain between the symbols of the uplink transmission scheduled by DCI and at least one first symbol, it is determined that there is a conflict between the uplink transmission scheduled by DCI and the downlink transmission configured by high-layer parameters. Wherein, the at least one first symbol includes the symbols within the time from the first target time offset value before the first symbol of the downlink transmission configured by high-layer parameters to the first target time offset value after the last symbol of the downlink transmission configured by high-layer parameters. The downlink transmission configured by high-layer parameters includes at least one of the following: PDCCH, PDSCH, CSI-RS, DL PRS; When there is an overlap in the time domain between the symbols of the downlink transmission scheduled by DCI and at least one second symbol, it is determined that there is a conflict between the downlink transmission scheduled by DCI and the uplink transmission configured by high-layer parameters. Wherein, the at least one second symbol includes the symbols within the time from the third target time offset value before the first symbol of the uplink transmission configured by high-layer parameters to the third target time offset value after the last symbol of the uplink transmission configured by high-layer parameters. The third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time for the physical uplink channel transmission; When the symbols of the uplink transmission configured by the higher layer are located in the time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in the time domain between the symbols of the uplink transmission configured by the higher layer and at least one third symbol, it is determined that there is a conflict between the symbols of the uplink transmission configured by the higher layer and the transmission of the next earliest candidate SSB, where the at least one third symbol includes the symbols within the time from the first time threshold before the first symbol of the next earliest candidate SSB to the first symbol of the next earliest candidate SSB, and the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c plus the first target time offset value, N Tx-Rx is the shortest time for the half-duplex terminal to switch from transmission to reception, T c is the basic time unit of the communication system; When the symbols of the uplink transmission configured by high-layer parameters are located in time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in time domain between the symbols of the uplink transmission configured by high-layer parameters and at least one fourth symbol, it is determined that there is a conflict between the symbols of the uplink transmission configured by high-layer parameters and the transmission of the last latest candidate SSB. Wherein, the at least one fourth symbol includes the symbols within the time of the second time threshold starting from the last symbol of the last latest candidate SSB to after the last symbol of the last latest candidate SSB, and the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c plus the first target time offset value, N Rx-Tx is the shortest time for the half-duplex terminal to switch from reception to transmission, T c is the basic time unit of the communication system; When there is an overlap in the time domain between the symbols of the uplink transmission scheduled by DCI and at least one fifth symbol, it is determined that there is a conflict between the uplink transmission scheduled by DCI and the candidate SSB transmission. Wherein, the at least one fifth symbol is the symbol within the time from the first target time offset value before the first symbol of the candidate SSB transmission to the first target time offset value after the last symbol of the candidate SSB transmission. The uplink transmission scheduled by DCI includes at least one of the following: PRACH, PUSCH, PUCCH, SRS.

15. The device according to claim 12 or 14, characterized in that, The first transmission module performing signal transmission according to the second rule includes at least one of the following: When there is an overlap in the time domain between the symbols of the uplink transmission scheduled by the first DCI and at least one first symbol, transmit the uplink transmission scheduled by the first DCI and do not receive the downlink transmission configured by the first high-layer parameters. Wherein, the at least one first symbol is the symbol within the time from the first target time offset value before the first symbol of the first group of symbols of the downlink transmission configured by the first high-layer parameters to the first target time offset value after the last symbol of the first group of symbols; In the case where the symbols of the downlink transmission scheduled by the second DCI overlap with at least one second symbol in the time domain, the first uplink transmission within the first time period is not cancelled, and the first uplink transmission within the second time period is cancelled, where the first uplink transmission is an uplink transmission configured by a second high-layer parameter, and the at least one second symbol includes symbols within the time from a third target time offset value before the first symbol of the first uplink transmission to the third target time offset value after the last symbol of the first uplink transmission. The first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS. The first time period is the time within the third target time offset value after the last symbol of receiving the second DCI, and the second time period is the time after the third target time offset value after the last symbol of receiving the second DCI. The third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time of the physical uplink channel transmission; When the symbols of the second uplink transmission in the third high-layer parameter configuration are located in the time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in the time domain between the symbols of the second uplink transmission in the seventh high-layer parameter configuration and at least one third symbol, cancel the second uplink transmission, where the at least one third symbol includes the symbols within the time period from the first time threshold before the first symbol of the next earliest candidate SSB of the second uplink transmission to the first symbol of the next earliest candidate SSB, and the first time threshold is equal to the first target time offset value or equal to N Tx-Rx ·T c plus the first target time offset value, where N Tx-Rx is the shortest time for the half-duplex terminal to switch from transmission to reception, and the second uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS; When the symbols of the third uplink transmission in the fourth high-layer parameter configuration are located in the time domain between the transmission symbols of the candidate synchronization signal block (SSB), and there is an overlap in the time domain between the symbols of the third uplink transmission and at least one fourth symbol, the third uplink transmission is cancelled, where the at least one fourth symbol includes the symbols within a time period from the last symbol of the last latest candidate SSB relative to the third uplink transmission to the second time threshold after the last symbol of the last latest candidate SSB, and the second time threshold is equal to the first target time offset value or equal to N Rx-Tx ·T c plus the first target time offset value, N Rx-Tx is the shortest time for the half-duplex terminal to switch from reception to transmission, T c is the basic time unit of the communication system, and the third uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS; In the case where the fourth uplink transmission scheduled by the third DCI overlaps with at least one fifth symbol in the time domain, the fourth uplink transmission within the symbols of the transmission of the candidate SSB is cancelled, where the fourth uplink transmission includes at least one of the following: PRACH, PUSCH, PUCCH, SRS.

16. The device according to claim 12, characterized in that, The third rule includes: determining that the target timing gap is the sum of the candidate timing gap and the second target time offset value, where the candidate timing gap is the timing gap used to determine the uplink transmission timing, and the value of the candidate timing gap includes one of the following: N T,1 +N T,2 +C1; N T,1 + C2; where N T,1 is the time corresponding to N1 symbols corresponding to the PDSCH processing time of UE processing capability 1 in the case of configuring additional PDSCH demodulation reference signal DMRS symbols; N T,2 It is the time corresponding to N2 symbols corresponding to the PUSCH processing time of UE processing capability 1; C1 and C2 are fixed values agreed upon by the protocol.

17. The device according to any one of claims 12 to 16, characterized in that The first target time offset value includes at least one of the following: The uplink-downlink scheduling timing offset value K_offset; The dedicated time offset value R_offset; One value indicated by the network-side device among K_offset and R_offset; The maximum value of K_offset and R_offset; The minimum value of K_offset and R_offset; In the case where K_offset is the cell-specific time offset value, the first target time offset value is R_offset; in the case where K_offset is the terminal-specific time offset value, the first target time offset value is K_offset.

18. The device according to any one of claims 12 to 17, characterized in that, The second target time offset value includes at least one of the following: The first target time offset value; The cell-specific K_offset; The target delay difference between the edge user and the central user; The target time advance TA difference between the edge user and the central user; The difference between the target delay difference and the target TA difference.

19. A signal transmission device, characterized in that, Includes: A second determination module, configured to determine the target rule used by the terminal; A second transmission module, configured to perform signal transmission with the terminal according to the target rule used by the terminal; Wherein, the target rule includes at least one of the following: The first rule, used to indicate preferentially performing downlink transmission; The second rule is used for conflict determination based on the first target time offset value or for signal transmission based on the first target time offset value; The third rule is used to determine the target timing gap GAP based on the second target time offset value.

20. The device according to claim 19, characterized in that, The signal transmission between the second transmission module and the terminal according to the second rule used by the terminal includes at least one of the following: In the case where the symbols of the uplink transmission scheduled by the first DCI overlap with at least one first symbol in the time domain, the uplink transmission scheduled by the first DCI transmitted by the terminal, where the at least one first symbol is the symbol within the time from the first target time offset value before the first symbol of the first set of symbols of the downlink transmission configured by the first high-layer parameter to the first target time offset value after the last symbol of the first set of symbols; In the case where the symbols of the downlink transmission scheduled by the second DCI overlap with at least one second symbol in the time domain, receive the first uplink transmission of the terminal within the first time period, where the first uplink transmission is the uplink transmission configured by the second high-layer parameter, the at least one second symbol includes the symbol within the time from the third target time offset value before the first symbol of the first uplink transmission to the third target time offset value after the last symbol of the first uplink transmission, the first uplink transmission includes at least one of the following: PUCCH, PUSCH, SRS, the first time period is the time within the third target time offset value after receiving the last symbol of the second DCI, the third target time offset value is equal to the first target time offset value, or the third target time offset value is equal to the sum of the first target time offset value and the preparation time of the physical uplink channel transmission.

21. The device according to claim 19 or 20, characterized in that, The second transmission module is further used to indicate at least one of the following to the terminal: The time offset value R_offset dedicated to the first target time offset value; The first target time offset value is one of the values of K_offset and R_offset; The second target time offset value is the cell-specific K_offset; The second target time offset value is the target time delay difference between the edge user and the central user; The second target time offset value is the target time advance TA difference between the edge user and the central user; The second target time offset value is the difference between the target time delay difference and the target TA difference.

22. A terminal, characterized in that, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, it realizes the steps of the signal transmission method according to any one of claims 1 to 8.

23. A network-side device, characterized in that, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, it realizes the steps of the signal transmission method according to any one of claims 9 to 11.

24. A readable storage medium, characterized in that, The program or instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, it implements the steps of the signal transmission method described in any one of claims 1 to 8, or implements the steps of the signal transmission method described in any one of claims 9 to 11.

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