Transmission mode determination method, first terminal and relay terminal

Abstract

The application discloses a transmission mode determination method, a first terminal and a relay terminal, and belongs to the technical field of communication. The transmission mode determination method of the application comprises the following steps: a first terminal acquires first information; wherein the first information is used for indicating a target transmission mode used for communication between the first terminal and a second terminal; and the first terminal determines the target transmission mode based on the first information; wherein the target transmission mode comprises at least one of the following: a first transmission mode used for indicating that the first terminal and the second terminal communicate through a relay terminal; a second transmission mode used for indicating that the first terminal and the second terminal communicate through one-hop sidelink; and a third transmission mode used for indicating that the first terminal and the second terminal communicate through a network side device.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a method for determining transmission mode, a first terminal, and a relay terminal. Background Technology

[0002] Relay technology in wireless communication systems adds one or more relay nodes between the base station and the terminal, which forward wireless signals. In a User Equipment (UE) to UE (UE to UE, U2U) relay transmission scenario, the relay transmission network includes Remote UE1, Remote UE2, and Relay UE. Communication information from Remote UE1 to Remote UE2 must first be sent to the Relay UE, which then forwards it to Remote UE2; similarly, communication information from Remote UE2 to Remote UE1 must first be sent to the Relay UE, which then forwards it to Remote UE1. Furthermore, remote UEs can also communicate with each other via a side link.

[0003] However, even though there are many transmission technologies currently used for communication between UEs, the problem of low communication efficiency still exists. Summary of the Invention

[0004] This application provides a method for determining a transmission mode, a first terminal, and a relay terminal, which can solve the problem of low communication efficiency.

[0005] Firstly, a method for determining a transmission mode is provided, the method comprising:

[0006] The first terminal acquires first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0007] The first terminal determines the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0008] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0009] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0010] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0011] Secondly, a method for determining a transmission mode is provided, the method comprising:

[0012] The relay terminal acquires first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0013] The relay terminal determines the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0014] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through the relay terminal;

[0015] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0016] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0017] Thirdly, a transmission mode determining device is provided, the device comprising:

[0018] The first acquisition module is used to acquire first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0019] A first determining module is configured to determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0020] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0021] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0022] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0023] Fourthly, a transmission mode determining device is provided, the device comprising:

[0024] The second acquisition module is used to acquire first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0025] The second determining module is configured to determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0026] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0027] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0028] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0029] Fifthly, a first terminal is provided, the first terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0030] Sixthly, a first terminal is provided, including a processor and a communication interface; wherein the processor is used for:

[0031] Obtain first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0032] The target transmission method is determined based on the first information; wherein the target transmission method includes at least one of the following:

[0033] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0034] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0035] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0036] In a seventh aspect, a relay terminal is provided, the relay terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0037] Eighthly, a relay terminal is provided, including a processor and a communication interface; wherein the processor is used for:

[0038] Obtain first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0039] The target transmission method is determined based on the first information; wherein the target transmission method includes at least one of the following:

[0040] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through the relay terminal;

[0041] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0042] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0043] A ninth aspect provides a transmission mode determination system, comprising: a first terminal and a relay terminal, wherein the first terminal can be used to perform the steps of the method described in the first aspect, and the relay terminal can be used to perform the steps of the method described in the second aspect.

[0044] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0045] Eleventhly, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0046] In a twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0047] In this embodiment of the application, first information is obtained through the first terminal, and the target transmission method used for communication between the first terminal and the second terminal is determined based on the first information. This allows the first terminal and the second terminal to communicate using a preferred transmission method, better meeting service quality requirements and avoiding the problem of low communication efficiency caused by always using a certain transmission method between the first terminal and the second terminal. This can improve communication efficiency. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of a wireless communication system to which embodiments of this application can be applied;

[0049] Figure 2 This is one of the flowcharts illustrating the method for determining the transmission mode provided in the embodiments of this application;

[0050] Figure 3 This is a second flowchart illustrating the method for determining the transmission mode provided in the embodiments of this application;

[0051] Figure 4 This is one of the structural schematic diagrams of the transmission mode determination device provided in the embodiments of this application;

[0052] Figure 5 This is a second schematic diagram of the transmission mode determination device provided in the embodiments of this application;

[0053] Figure 6 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application;

[0054] Figure 7 This is a schematic diagram of the terminal structure provided in the embodiments of this application. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0056] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0057] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but 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), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to communication systems other than NR system applications, such as 6th generation (6G) radio communication systems. th Generation 6G communication system.

[0058] Figure 1 This is a schematic diagram of a wireless communication system to which the embodiments of this application can be applied. Figure 1 The wireless communication system shown includes: a first terminal 11, a second terminal 12, and a relay terminal 13; the relay terminal 13 can be one or more RelayUEs. The first terminal 11 and the second terminal 12 can communicate with each other through the relay terminal 13, or they can communicate directly with each other. The first terminal 11 and the second terminal 12 can also communicate with each other through network-side equipment.

[0059] Among them, the first terminal 11, the second terminal 12, and the relay terminal 13 can be mobile phones, tablet computers, laptop computers (also known as notebook computers), personal digital assistants (PDAs), handheld computers, netbooks, ultra-mobile personal computers (UMPCs), mobile internet devices (MIDs), augmented reality (AR) / virtual reality (VR) devices, robots, wearable devices, vehicle-mounted devices (VUEs), pedestrian terminals (PUEs), smart home devices (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal is not limited in the embodiments of this application.

[0060] It is understood that the wireless communication system to which this application embodiment can be applied may include network-side equipment in addition to the first terminal 11, the second terminal 12, and the relay terminal 13. The network-side equipment may include access network equipment or core network equipment. Access network equipment may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), home B node, home evolved B node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.Core network equipment 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 (or L-NEF), Binding Support Function (BSF), and Application Function. Functions include (AF), location management function (LMF), enhanced serving mobile location center (E-SMLC), and network data analytics function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example for description, and does not limit the specific type of core network equipment.

[0061] The method for determining the transmission mode provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0062] Figure 2This is one of the flowcharts illustrating the transmission mode determination method provided in the embodiments of this application, such as... Figure 2 As shown, the method includes steps 201-202; wherein:

[0063] Step 201: The first terminal obtains first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0064] Step 202: The first terminal determines the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0065] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0066] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0067] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0068] It should be noted that the embodiments of this application can be applied to wireless communication systems that support relay. The first terminal is, for example, Remote UE1, the second terminal is, for example, Remote UE2, and the relay terminal is, for example, a Relay UE. It is understood that the first terminal and the second terminal can communicate via multi-hop relay through one or more relay terminals.

[0069] In practice, the first transmission method can be called the relay transmission method, which refers to the communication between the first terminal and the second terminal through two or more side links established by the relay terminal. The second transmission method can be called the direct transmission method, which refers to the communication between the first terminal and the second terminal through a single side link between them. The third transmission method can be called the network-side transmission method, which refers to the communication between the first terminal and the second terminal through two or more transmission links established by network-side equipment.

[0070] Optionally, the first information may include at least one of the following: the wireless channel quality and / or transmission delay of the transmission path corresponding to at least one transmission mode (at least one of the first transmission mode, the second transmission mode, or the third transmission mode); the transmission delay threshold of the information to be transmitted; and the data volume of the information to be transmitted.

[0071] Specifically, the first information may include at least one of the following:

[0072] 1) The wireless channel quality and / or transmission delay of the first side link between the first terminal and the relay terminal.

[0073] In practice, wireless channel quality can include one or more of the following: sidelink discovery reference signal received power (SD-RSRP) and sidelink reference signal received power (SL-RSRP).

[0074] 2) The wireless channel quality and / or transmission delay of the second side link between the second terminal and the relay terminal.

[0075] 3) The wireless channel quality and / or transmission delay of the third side link between the first terminal and the second terminal.

[0076] For example, with Figure 1 Taking the wireless communication system shown as an example, the side link between the first terminal 11 and the relay terminal 13 is the first side link, the side link between the second terminal 12 and the relay terminal 13 is the second side link, and the side link between the first terminal 11 and the second terminal 12 is the third side link.

[0077] 4) Transmission delay threshold for information to be transmitted between the first terminal and the second terminal.

[0078] 5) The amount of data to be transmitted between the first terminal and the second terminal.

[0079] When there is a communication requirement between the first terminal and the second terminal, the target transmission method determined by the first terminal based on the first information can better meet the service quality requirements.

[0080] In the transmission mode determination method provided in this application embodiment, first information is obtained through the first terminal, and the target transmission mode used for communication between the first terminal and the second terminal is determined based on the first information. This enables the first terminal and the second terminal to communicate using a preferred transmission mode, better meeting service quality requirements and avoiding the problem of low communication efficiency caused by the first terminal and the second terminal always using a certain transmission mode. This can improve communication efficiency.

[0081] Optionally, steps 201 and 202 can be performed periodically to maintain high communication efficiency.

[0082] Optionally, after the first terminal determines the target transmission method based on the first information, the first terminal establishes a transmission path corresponding to the target transmission method. The established transmission path can better meet the service quality requirements. Based on the established transmission path, the first terminal uses the target transmission method to communicate with the second terminal, which can improve communication efficiency.

[0083] Here, we will explain how the first terminal obtains the first information.

[0084] First, regarding the timing of the first terminal acquiring the first information, the first terminal acquires the first information when communicating with the second terminal using the current transmission method (first transmission method, second transmission method, or third transmission method), or during the process of establishing a transmission path corresponding to the initial transmission method.

[0085] Optionally, the first terminal may acquire the first information in at least one of the following ways:

[0086] a) The first terminal measures the wireless channel quality and / or transmission delay of the first side link;

[0087] b) The first terminal receives the wireless channel quality and / or transmission delay from the first side link of the relay terminal;

[0088] c) The first terminal receives the wireless channel quality and / or transmission delay from the second side link of the relay terminal;

[0089] d) The first terminal receives the wireless channel quality and / or transmission delay of the second side link from the second terminal;

[0090] e) The first terminal measures the wireless channel quality and / or transmission delay of the third side link;

[0091] f) The first terminal receives the wireless channel quality and / or transmission delay from the third side link of the relay terminal;

[0092] g) The first terminal receives the wireless channel quality and / or transmission delay of the third side link from the second terminal;

[0093] h) The first terminal determines the transmission delay threshold of the information to be transmitted between the first terminal and the second terminal according to the communication requirements;

[0094] i) The first terminal determines the amount of data to be transmitted between the first terminal and the second terminal based on communication requirements.

[0095] refer to Figure 1In the wireless communication system shown, the second transmission method uses a third side link between the first terminal and the second terminal. The wireless channel quality corresponding to the third side link is denoted as X1, and the transmission delay corresponding to the third side link is denoted as D1. The relay path corresponding to the first transmission method includes a first side link and a second side link. The first side link is the side link between the first terminal 11 and the relay terminal 13, and the second side link is the side link between the second terminal 12 and the relay terminal 13. The wireless channel quality corresponding to the first side link is denoted as X2-1, and the transmission delay corresponding to the first side link is denoted as D2-1. The wireless channel quality corresponding to the second side link is denoted as X2-2, and the transmission delay corresponding to the second side link is denoted as D2-2.

[0096] Here, we will explain how the first terminal determines the target transmission method based on the first information.

[0097] I. When the first information is related to the quality of the wireless channel, the implementation method of the first terminal determining the target transmission mode based on the first information may include at least one of the following methods:

[0098] Method 1: When the wireless channel quality of the third side link is lower than a first preset threshold, the first terminal determines the target transmission mode as the first transmission mode.

[0099] Method 2: If the wireless channel quality of the third side link is higher than or equal to the first preset threshold, the first terminal determines the target transmission mode as the second transmission mode.

[0100] Method 3: When the wireless channel quality of the third side link is lower than the second preset threshold and the wireless channel quality of the first side link is higher than the third preset threshold, the first terminal determines the target transmission mode as the first transmission mode.

[0101] Method 4: When the wireless channel quality of the third side link is lower than the fourth preset threshold, and the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the first terminal determines the target transmission mode as the first transmission mode.

[0102] Method 5: When the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the first terminal determines the target transmission mode as the first transmission mode.

[0103] Method 6: If the wireless channel quality of the third side link is higher than a sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the first terminal determines the target transmission mode as the second transmission mode.

[0104] Method 7: If at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the first terminal determines the target transmission mode as the second transmission mode.

[0105] refer to Figure 1 In the wireless communication system shown, the second transmission method uses a third side link between the first terminal and the second terminal, and the wireless channel quality corresponding to the third side link is denoted as X1; while the relay path corresponding to the first transmission method includes a first side link and a second side link. The first side link is the side link between the first terminal 11 and the relay terminal 13, and the second side link is the side link between the second terminal 12 and the relay terminal 13; the wireless channel quality corresponding to the first side link is denoted as X2-1, and the wireless channel quality corresponding to the second side link is denoted as X2-2.

[0106] Here, the process of the first terminal determining the target transmission method is explained, specifically whether it collaborates with other terminals during the execution of the process.

[0107] Execution process 1: The first terminal determines the target transmission method according to the pre-configured rules:

[0108] Principle 1-1: If the wireless channel quality X1 measured by the first terminal is lower than the first preset threshold, the first terminal determines that the second transmission mode is unavailable, selects an available relay terminal, establishes a relay channel, and uses the first transmission mode for communication; if the wireless channel quality X1 measured by the first terminal is higher than or equal to the first preset threshold, the first terminal selects the second transmission mode for communication.

[0109] According to principle 1-2, if the wireless channel quality X1 measured by the first terminal is lower than the second preset threshold, while the wireless channel quality X2 measured between the first terminal and the relay terminal is higher than the third preset threshold, the first terminal shall choose to establish a relay channel through the relay terminal and communicate using the first transmission method.

[0110] Execution process 2: The first terminal and the second terminal negotiate and determine the target transmission method:

[0111] One scenario (referred to as Scenario 1): When the first terminal and the second terminal exchange measurement information through an established transmission method (first transmission method, second transmission method, or third transmission method) or during the process of establishing the corresponding transmission path of the initial transmission method, the second terminal sends the measured X2-2 to the remote first terminal. The first terminal determines whether to switch the transmission method based on its own measured X2-1 and X1 and the received X2-2. Specifically:

[0112] Switching Scenario 1: If the first terminal is currently using the second transmission mode, and if condition (1) X1 is lower than the fourth threshold, and / or conditions (2) X2-1 and X2-2 are both higher than the fifth threshold, then the first terminal triggers the process of switching to the first transmission mode.

[0113] Switching Scenario 2: If the first terminal is currently using the first transmission mode, and if condition (3) X1 is higher than the sixth threshold, and / or at least one of condition (4) X2-1 and X2-2 is lower than the seventh threshold, then the first terminal triggers the process of switching to the second transmission mode.

[0114] Another scenario (referred to as scenario 2): The first terminal sends the measured X2-1 to the second terminal, and the second terminal determines whether to switch the transmission mode based on its own measured X2-2 and X1 and the received X2-1.

[0115] Execution process 3: The relay terminal assists the first or second terminal in determining the target transmission method:

[0116] Specifically, execution process 3 may include any of the following methods:

[0117] Method 3-1: During the relay link establishment process, the first terminal sends a request for establishing a relay path corresponding to the first transmission mode with the second terminal, along with X1 and X2-1, to the relay terminal. Then, during the process of establishing a side link connection with the second terminal based on the request information, the relay terminal requests the second terminal to send X2-2, or the relay terminal measures the wireless channel quality X2-2 between itself and the second terminal. The relay terminal determines the target transmission mode based on the obtained measurements X1, X2-1, and X2-2. If the target transmission mode determined by the relay terminal is the first transmission mode, the relay path establishment process continues; otherwise, the relay terminal stops the relay path establishment process and sends the target transmission mode to either the first or second terminal.

[0118] Method 3-2: During the relay link establishment process, the first terminal sends a request to the relay terminal to establish a relay transmission path with the second terminal. Then, during the process of establishing a side link connection with the second terminal based on the request information, the relay terminal requests the second terminal to send X2-2 to the relay terminal, or the relay terminal measures the wireless channel quality X2-2 between itself and the second terminal. The relay terminal sends X2-2 to the first terminal (or the second terminal), and the first terminal determines the target transmission mode according to the principles or situations in the above execution process 1 or 2. If the first terminal determines that the target transmission mode is the first transmission mode, it sends a response message to the relay terminal to notify the relay terminal to continue the relay path establishment process; if the first terminal determines that the target transmission mode is the second transmission mode, it sends a response message to the relay terminal to notify the relay terminal to stop the relay path establishment process.

[0119] Method 3-3: During the communication process between the first terminal and the second terminal using the first transmission mode, the relay terminal obtains X1 (optional) and X2-2 and sends them to the first terminal, or obtains X1 (optional) and X2-1 and sends them to the second terminal. The second terminal or the first terminal determines the target transmission mode according to the principles or circumstances in the above execution process 1 or 2. If the target transmission mode determined by the first terminal or the second terminal is the first transmission mode, the first transmission mode is maintained. Otherwise, the first terminal or the second terminal initiates the process of switching from the first transmission mode to the second transmission mode.

[0120] Method 3-4: During the communication between the first terminal and the second terminal using the first transmission mode, the relay terminal obtains X1, X2-1, and X2-2, and determines the target transmission mode. If the determined target transmission mode is the first transmission mode, the first transmission mode is maintained. Otherwise, the relay terminal sends a transmission mode switching notification to the first terminal or the second terminal. After receiving the notification, the first terminal or the second terminal initiates the process of switching from the first transmission mode to the second transmission mode.

[0121] II. When the first information is related to transmission delay, the implementation method of the first terminal determining the target transmission method based on the first information may include at least one of the following methods:

[0122] Method 1) If the first terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method is less than or equal to the transmission delay threshold of the information to be transmitted;

[0123] The transmission delay budget is obtained by summing the transmission delays of all side links included in the transmission path corresponding to the first transmission mode.

[0124] Method 2) If the first terminal determines the target transmission method as the second transmission method when the transmission delay budget corresponding to the first transmission method is greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay threshold of the information to be transmitted.

[0125] Method 3) When the first terminal determines the target transmission method as the second transmission method, the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay budget corresponding to the first transmission method.

[0126] Method 4) When the first terminal determines the target transmission method as the first transmission method if the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is greater than the transmission delay budget corresponding to the first transmission method.

[0127] Method 5) If the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, the first terminal determines the target transmission method as the third transmission method. In this case, the first terminal and the second terminal communicate through network-side devices. It can be understood that the first terminal can be wirelessly connected to the first network-side device, and the second terminal can be wirelessly connected to the second network-side device. The first network-side device and the second network-side device can be the same network-side device, network element, or function, or they can be different network-side devices, network elements, or functions.

[0128] The transmission delay budget D1 for direct transmission between the first and second terminals is evaluated by either the first or second terminal. The required transmission delay D2-1 between the relay terminal and the first terminal is evaluated by either the relay terminal or the first terminal. The required transmission delay D2-2 between the relay terminal and the second terminal is evaluated by either the relay terminal or the second terminal. Therefore, the total delay budget for data transmission between the first and second terminals using relay transmission is (D2-1 + D2-2). Assume the delay requirement for data transmission between the first and second terminals is no more than D0. If D2-1 + D2-2 <= D0, then relay transmission also meets the delay requirement. If D1 <= D0 and D2-1 + D2-2 > D0, then direct transmission meets the delay requirement. If neither direct transmission nor relay transmission meets the delay requirement, a shorter delay transmission method can be selected. Alternatively, if both the first and second terminals have base station coverage, communication via network-side equipment can be chosen.

[0129] In the case where the first information is related to the transmission delay, the implementation method of the first terminal determining the target transmission mode based on the first information can be determined by the first terminal or by the relay terminal.

[0130] Specifically, when determined by the first terminal (i.e. the terminal that initiates communication), the relay terminal needs to send the transmission delay budget of the side link that the data traverses through the relay path to the first terminal. Then, the first terminal determines the transmission method and initiates the process of establishing a wireless transmission channel according to the determined transmission method.

[0131] When determined by a relay terminal, the first terminal needs to send D1 and D0 to the relay terminal. Then, the relay terminal determines the transmission method and sends the transmission method to the first terminal. The first terminal then initiates the process of establishing a wireless transmission channel based on the received transmission method.

[0132] Third, when the amount of data between the first information and the information to be transmitted is related, the implementation method by which the first terminal determines the target transmission method based on the first information may include at least one of the following methods:

[0133] Based on the first information, the first terminal determines the target transmission mode as the second transmission mode when the target conditions are met; wherein the target conditions include at least one of the following:

[0134] a) The amount of data to be transmitted is less than the eighth preset threshold;

[0135] b) The wireless channel quality of the third side link is higher than or equal to the ninth preset threshold;

[0136] c) There is no transmission path between the first terminal and the second terminal corresponding to the first transmission method.

[0137] Optionally, when the amount of data sent from the first terminal to the second terminal is less than a preset threshold, there is no relay path between the first and second terminals, and the wireless channel quality between the first and second terminals is higher than a minimum threshold, the first terminal prioritizes establishing a side link with the second terminal and uses direct transmission mode for data transmission. The advantage of this is that it avoids triggering a large-signaling relay path establishment process for transmitting a small amount of data.

[0138] Figure 3 This is a second flowchart illustrating the method for determining the transmission mode provided in this application embodiment, as shown below. Figure 3 As shown, the method includes steps 301-302; wherein:

[0139] Step 301: The relay terminal obtains first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0140] Step 302: The relay terminal determines the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0141] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through the relay terminal;

[0142] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0143] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0144] It is understandable that the first terminal and the second terminal can communicate via multi-hop relay through one or more relay terminals.

[0145] Optionally, in a multi-hop U2U relay network, when the transmission mode is determined by the relay terminal, one relay terminal in the relay path can be designated as the primary relay terminal. For example, the protocol can specify that the relay terminal connected to the first or second terminal initiating the communication is the primary relay terminal. Alternatively, when there is network coverage, the network can configure one relay terminal as the primary relay terminal. Other relay terminals in the relay path need to send the acquired wireless channel measurements or side link delays to the primary relay terminal. The primary relay terminal assists the first or second terminal in determining the transmission mode.

[0146] In practice, the first transmission method can be called the relay transmission method, which refers to the communication between the first terminal and the second terminal through two or more hops of side links established by the relay terminal. The second transmission method can be called the direct transmission method, which refers to the communication between the first terminal and the second terminal through a single hop of side links between them. The third transmission method can be called the network-side transmission method, which refers to the communication between the first terminal and the second terminal through two or more transmission links established by network-side equipment.

[0147] Optionally, the first information may include at least one of the following: the wireless channel quality and / or transmission delay of the transmission path corresponding to at least one transmission mode (at least one of the first transmission mode, the second transmission mode, or the third transmission mode); the transmission delay threshold of the information to be transmitted; and the data volume of the information to be transmitted.

[0148] Specifically, the first information may include at least one of the following:

[0149] 1) The wireless channel quality and / or transmission delay of the first side link between the first terminal and the relay terminal.

[0150] 2) The wireless channel quality and / or transmission delay of the second side link between the second terminal and the relay terminal.

[0151] 3) The wireless channel quality and / or transmission delay of the third side link between the first terminal and the second terminal.

[0152] For example, with Figure 1 Taking the wireless communication system shown as an example, the side link between the first terminal 11 and the relay terminal 13 is the first side link, the side link between the second terminal 12 and the relay terminal 13 is the second side link, and the side link between the first terminal 11 and the second terminal 12 is the third side link.

[0153] 4) Transmission delay threshold for information to be transmitted between the first terminal and the second terminal.

[0154] 5) The amount of data to be transmitted between the first terminal and the second terminal.

[0155] When there is a communication requirement between the first terminal and the second terminal, the target transmission method determined by the first terminal based on the first information can better meet the service quality requirements.

[0156] Optionally, after determining the target transmission method based on the first information, the relay terminal sends the target transmission method to the first terminal and / or the second terminal; wherein the target transmission method is used to instruct the first terminal or the second terminal to establish a transmission path corresponding to the target transmission method. Then, the first terminal or the second terminal establishes a transmission path corresponding to the target transmission method.

[0157] In the transmission mode determination method provided in this application embodiment, first information is obtained through a relay terminal, and the target transmission mode used for communication between the first terminal and the second terminal is determined based on the first information. This allows the first terminal and the second terminal to dynamically use the preferred transmission mode to achieve communication between them, better meet service quality requirements, and avoid the problem of low communication efficiency caused by the first terminal and the second terminal always using a certain transmission mode. This can improve communication efficiency.

[0158] Optionally, the implementation method by which the relay terminal determines the target transmission method based on the first information may include at least one of the following:

[0159] 1) When the wireless channel quality of the third side link is lower than a first preset threshold, the relay terminal determines the target transmission mode as the first transmission mode;

[0160] 2) If the wireless channel quality of the third side link is higher than or equal to the first preset threshold, the relay terminal determines the target transmission mode as the second transmission mode;

[0161] 3) When the wireless channel quality of the third side link is lower than the second preset threshold and the wireless channel quality of the first side link is higher than the third preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode.

[0162] 4) When the wireless channel quality of the third side link is lower than the fourth preset threshold, and the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode.

[0163] 5) When the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode.

[0164] 6) If the relay terminal determines the target transmission mode as the second transmission mode when the wireless channel quality of the third side link is higher than the sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than the seventh preset threshold;

[0165] 7) If at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the relay terminal determines that the target transmission mode is the second transmission mode.

[0166] Optionally, the implementation method by which the relay terminal determines the target transmission method based on the first information may include at least one of the following:

[0167] a) If the relay terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method is less than or equal to the transmission delay threshold of the information to be transmitted;

[0168] b) If the relay terminal determines the target transmission mode as the second transmission mode when the transmission delay budget corresponding to the first transmission mode is greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay threshold of the information to be transmitted;

[0169] c) When the transmission delay budget corresponding to the first transmission mode and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay budget corresponding to the first transmission mode, the relay terminal determines the target transmission mode as the second transmission mode.

[0170] d) When the relay terminal determines the target transmission mode as the first transmission mode if the transmission delay budget corresponding to the first transmission mode and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is greater than the transmission delay budget corresponding to the first transmission mode;

[0171] e) If the transmission delay budget corresponding to the first transmission mode and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, the relay terminal determines the target transmission mode as the third transmission mode.

[0172] The transmission delay budget is obtained by summing the transmission delays of all side links included in the transmission path corresponding to the first transmission mode.

[0173] Optionally, the relay terminal determines the target transmission mode based on the first information, including:

[0174] Based on the first information, the relay terminal determines the target transmission mode as the second transmission mode when the target conditions are met; wherein the target conditions include at least one of the following:

[0175] 1) The amount of data in the information to be transmitted is less than the eighth preset threshold;

[0176] 2) The wireless channel quality of the third side link is higher than or equal to the ninth preset threshold;

[0177] 3) There is no transmission path between the first terminal and the second terminal corresponding to the first transmission method.

[0178] Optionally, the relay terminal may acquire the first information in a manner that includes at least one of the following:

[0179] a) The relay terminal measures the wireless channel quality and / or transmission delay of the first side link;

[0180] b) The relay terminal receives the wireless channel quality and / or transmission delay from the first side link of the first terminal;

[0181] c) The relay terminal measures the wireless channel quality and / or transmission delay of the second side link;

[0182] d) The relay terminal receives the wireless channel quality and / or transmission delay of the second side link from the second terminal;

[0183] e) The relay terminal receives the wireless channel quality and / or transmission delay from the third side link of the first terminal or the second terminal;

[0184] f) The relay terminal receives the transmission delay threshold of the information to be transmitted between the first terminal and the second terminal from the first terminal or the second terminal;

[0185] g) The relay terminal receives the amount of data of information to be transmitted between the first terminal and the second terminal from the first terminal or the second terminal.

[0186] The transmission mode determination method provided in this application can be executed by a transmission mode determination device. This application uses the example of a transmission mode determination device executing the transmission mode determination method to illustrate the transmission mode determination device provided in this application.

[0187] Figure 4 This is one of the structural schematic diagrams of the transmission mode determination device provided in the embodiments of this application, such as... Figure 4 As shown, the transmission mode determining device 400, applied to the first terminal, includes:

[0188] The first acquisition module 401 is used to acquire first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0189] The first determining module 402 is configured to determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0190] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0191] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0192] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0193] In the transmission mode determination device provided in this application embodiment, by acquiring first information and determining the target transmission mode used for communication between the first terminal and the second terminal based on the first information, the first terminal and the second terminal can dynamically use the preferred transmission mode to realize communication between them, better meet the service quality requirements, and avoid the problem of low communication efficiency caused by the first terminal and the second terminal always using a certain transmission mode, thus improving communication efficiency.

[0194] The transmission mode determination device in this application embodiment can be a first terminal. The first terminal can be of the type of first terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc. This application embodiment does not make specific limitations.

[0195] The transmission mode determination device provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0196] Optionally, the first information includes at least one of the following:

[0197] The wireless channel quality and / or transmission delay of the first side link between the first terminal and the relay terminal;

[0198] The wireless channel quality and / or transmission delay of the second side link between the second terminal and the relay terminal;

[0199] The wireless channel quality and / or transmission delay of the third side link between the first terminal and the second terminal;

[0200] The transmission delay threshold for the information to be transmitted between the first terminal and the second terminal;

[0201] The amount of data to be transmitted between the first terminal and the second terminal.

[0202] Optionally, the first determining module 402 is specifically used for at least one of the following:

[0203] If the wireless channel quality of the third side link is lower than a first preset threshold, the first terminal determines that the target transmission mode is the first transmission mode.

[0204] If the wireless channel quality of the third side link is higher than or equal to a first preset threshold, the first terminal determines that the target transmission mode is the second transmission mode.

[0205] If the wireless channel quality of the third side link is lower than the second preset threshold and the wireless channel quality of the first side link is higher than the third preset threshold, the first terminal determines the target transmission mode as the first transmission mode.

[0206] If the wireless channel quality of the third side link is lower than a fourth preset threshold, and the wireless channel quality of both the first side link and the second side link is higher than a fifth preset threshold, the first terminal determines the target transmission mode as the first transmission mode.

[0207] If the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the first terminal determines that the target transmission mode is the first transmission mode.

[0208] If the wireless channel quality of the third side link is higher than a sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the first terminal determines the target transmission mode as the second transmission mode.

[0209] If at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the first terminal determines that the target transmission mode is the second transmission mode.

[0210] Optionally, the first determining module 402 is specifically used for at least one of the following:

[0211] If the first terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method is less than or equal to the transmission delay threshold of the information to be transmitted;

[0212] If the first terminal determines the target transmission mode as the second transmission mode when the transmission delay budget corresponding to the first transmission mode is greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay threshold of the information to be transmitted;

[0213] If the first terminal determines the target transmission method as the second transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay budget corresponding to the first transmission method;

[0214] If the first terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is greater than the transmission delay budget corresponding to the first transmission method;

[0215] If the transmission delay budget corresponding to the first transmission mode and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, the first terminal determines the target transmission mode as the third transmission mode.

[0216] The transmission delay budget is obtained by summing the transmission delays of all side links included in the transmission path corresponding to the first transmission mode.

[0217] Optionally, the first determining module 402 is specifically used for at least one of the following:

[0218] Based on the first information, the first terminal determines the target transmission mode as the second transmission mode when the target conditions are met; wherein the target conditions include at least one of the following:

[0219] The amount of data in the information to be transmitted is less than an eighth preset threshold;

[0220] The wireless channel quality of the third side link is higher than or equal to the ninth preset threshold;

[0221] There is no transmission path between the first terminal and the second terminal corresponding to the first transmission method.

[0222] Optionally, the first acquisition module 401 is specifically used for at least one of the following:

[0223] The first terminal measures the wireless channel quality and / or transmission delay of the first side link;

[0224] The first terminal receives the wireless channel quality and / or transmission delay from the first side link of the relay terminal;

[0225] The first terminal receives the wireless channel quality and / or transmission delay of the second side link from the relay terminal;

[0226] The first terminal receives the wireless channel quality and / or transmission delay from the second side link of the second terminal;

[0227] The first terminal measures the wireless channel quality and / or transmission delay of the third side link;

[0228] The first terminal receives the wireless channel quality and / or transmission delay from the third side link of the relay terminal;

[0229] The first terminal receives the wireless channel quality and / or transmission delay from the third side link of the second terminal;

[0230] The first terminal determines the transmission delay threshold of the information to be transmitted between the first terminal and the second terminal according to communication requirements;

[0231] The first terminal determines the amount of data to be transmitted between the first terminal and the second terminal based on communication requirements.

[0232] Optionally, the first acquisition module 401 is specifically used for at least one of the following:

[0233] The first terminal acquires the first information when communicating with the second terminal using the current transmission method, or during the process of establishing a transmission path corresponding to the initial transmission method.

[0234] Optionally, the device further includes:

[0235] A module is established to create a transmission path corresponding to the target transmission method.

[0236] A communication module is used to communicate with the second terminal using the target transmission method based on the transmission path.

[0237] Figure 5 This is a second schematic diagram of the transmission mode determination device provided in the embodiments of this application, as shown below. Figure 5 As shown, the transmission mode determining device 500, applied to a relay terminal, includes:

[0238] The second acquisition module 501 is used to acquire first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0239] The second determining module 502 is configured to determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0240] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0241] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0242] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0243] In the transmission mode determination device provided in this application embodiment, by acquiring first information and determining the target transmission mode used for communication between the first terminal and the second terminal based on the first information, the first terminal and the second terminal can dynamically use the preferred transmission mode to realize communication between them, better meet the service quality requirements, and avoid the problem of low communication efficiency caused by the first terminal and the second terminal always using a certain transmission mode, thus improving communication efficiency.

[0244] Optionally, the first information includes at least one of the following:

[0245] The wireless channel quality and / or transmission delay of the first side link between the first terminal and the relay terminal;

[0246] The wireless channel quality and / or transmission delay of the second side link between the second terminal and the relay terminal;

[0247] The wireless channel quality and / or transmission delay of the third side link between the first terminal and the second terminal;

[0248] The transmission delay threshold for the information to be transmitted between the first terminal and the second terminal;

[0249] The amount of data to be transmitted between the first terminal and the second terminal.

[0250] Optionally, the second determining module 502 is specifically used for at least one of the following:

[0251] When the wireless channel quality of the third side link is lower than a first preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode.

[0252] If the wireless channel quality of the third side link is higher than or equal to a first preset threshold, the relay terminal determines the target transmission mode as the second transmission mode.

[0253] When the wireless channel quality of the third side link is lower than the second preset threshold and the wireless channel quality of the first side link is higher than the third preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode.

[0254] When the wireless channel quality of the third side link is lower than a fourth preset threshold, and the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than a fifth preset threshold, the relay terminal determines the target transmission mode as the first transmission mode.

[0255] If the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode.

[0256] If the relay terminal determines the target transmission mode as the second transmission mode when the wireless channel quality of the third side link is higher than the sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than the seventh preset threshold;

[0257] If at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the relay terminal determines that the target transmission mode is the second transmission mode.

[0258] Optionally, the second determining module 502 is specifically used for at least one of the following:

[0259] If the relay terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method is less than or equal to the transmission delay threshold of the information to be transmitted;

[0260] If the relay terminal determines the target transmission mode as the second transmission mode when the transmission delay budget corresponding to the first transmission mode is greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay threshold of the information to be transmitted;

[0261] The relay terminal determines the target transmission method as the second transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay budget corresponding to the first transmission method.

[0262] The relay terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is greater than the transmission delay budget corresponding to the first transmission method.

[0263] If the transmission delay budget corresponding to the first transmission mode and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, the relay terminal determines the target transmission mode as the third transmission mode.

[0264] The transmission delay budget is obtained by summing the transmission delays of all side links included in the transmission path corresponding to the first transmission mode.

[0265] Optionally, the second determining module 502 is specifically used for at least one of the following:

[0266] Based on the first information, the relay terminal determines the target transmission mode as the second transmission mode when the target conditions are met; wherein the target conditions include at least one of the following:

[0267] The amount of data in the information to be transmitted is less than an eighth preset threshold;

[0268] The wireless channel quality of the third side link is higher than or equal to the ninth preset threshold;

[0269] There is no transmission path between the first terminal and the second terminal corresponding to the first transmission method.

[0270] Optionally, the second acquisition module 501 is specifically used for at least one of the following:

[0271] The relay terminal measures the wireless channel quality and / or transmission delay of the first side link;

[0272] The relay terminal receives the wireless channel quality and / or transmission delay from the first side link of the first terminal;

[0273] The relay terminal measures the wireless channel quality and / or transmission delay of the second side link;

[0274] The relay terminal receives the wireless channel quality and / or transmission delay from the second side link of the second terminal;

[0275] The relay terminal receives wireless channel quality and / or transmission delay from the third side link of the first terminal or the second terminal;

[0276] The relay terminal receives the transmission delay threshold of the information to be transmitted between the first terminal and the second terminal from the first terminal or the second terminal.

[0277] The relay terminal receives the amount of data from the first terminal or the second terminal, representing the information to be transmitted between the first terminal and the second terminal.

[0278] Optionally, the device further includes:

[0279] The sending module is used to send the target transmission method to the first terminal and / or the second terminal; wherein the target transmission method is used to instruct the first terminal or the second terminal to establish a transmission path corresponding to the target transmission method.

[0280] Figure 6 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application, such as... Figure 6 As shown, the communication device 600 includes a processor 601 and a memory 602. The memory 602 stores programs or instructions that can run on the processor 601. For example, when the communication device 600 is a first terminal, the program or instructions executed by the processor 601 implement the various steps of the above-described first terminal-side transmission mode determination method embodiment, and achieve the same technical effect. When the communication device 600 is a relay terminal, the program or instructions executed by the processor 601 implement the various steps of the above-described relay terminal-side transmission mode determination method embodiment, and achieve the same technical effect. To avoid repetition, this will not be described again here.

[0281] This application embodiment also provides a first terminal, including a processor and a communication interface, wherein the processor is used for:

[0282] Obtain first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0283] The target transmission method is determined based on the first information; wherein the target transmission method includes at least one of the following:

[0284] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0285] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0286] The third transmission method is used to indicate that the first terminal and the second terminal communicate through a network-side device. This first terminal embodiment corresponds to the above-described first terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this first terminal embodiment and can achieve the same technical effect.

[0287] This application embodiment also provides a relay terminal, including a processor and a communication interface; the processor is configured to: acquire first information; wherein the first information is used to indicate a target transmission method used for communication between a first terminal and a second terminal; determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0288] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through the relay terminal;

[0289] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0290] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0291] Figure 7 This is a schematic diagram of the terminal structure provided in the embodiments of this application, such as... Figure 7 As shown, the terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0292] The structure of terminal 700, which can be a first terminal, a second terminal, and a relay terminal, can be referenced from the structure of terminal 700.

[0293] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 7 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0294] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0295] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low-noise amplifier, duplexer, etc.

[0296] The memory 709 can be used to store software programs or instructions, as well as various data. The memory 709 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0297] Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0298] The processor 710 is configured to acquire first information; wherein the first information is used to indicate a target transmission method used for communication between the first terminal and the second terminal; and to determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following:

[0299] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal;

[0300] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0301] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0302] This application embodiment also provides a relay terminal, including a processor and a communication interface, wherein the processor is used for:

[0303] Obtain first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal;

[0304] The target transmission method is determined based on the first information; wherein the target transmission method includes at least one of the following:

[0305] A first transmission mode is used to indicate that the first terminal and the second terminal communicate through the relay terminal;

[0306] The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link;

[0307] The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices.

[0308] This relay terminal embodiment corresponds to the relay terminal method embodiment described above. All implementation processes and methods of the above method embodiment can be applied to this relay terminal embodiment and can achieve the same technical effect.

[0309] This application embodiment also provides a transmission mode determination system, including: a first terminal and a relay terminal, wherein the first terminal can be used to execute the steps of the first terminal-side transmission mode determination method as described above, and the relay terminal can be used to execute the steps of the relay terminal-side transmission mode determination method as described above.

[0310] This application also provides a readable storage medium, which can be volatile or non-volatile. The readable storage medium stores a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described transmission mode determination method embodiment and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0311] 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 disk, or optical disk.

[0312] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described transmission mode determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0313] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0314] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described method for determining the transmission mode, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0315] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0316] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0317] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for determining a transmission mode, characterized in that, include: The first terminal acquires first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal; The first terminal determines the target transmission method based on the first information; wherein the target transmission method includes at least one of the following: A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal; The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link; The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices; The first information includes: The wireless channel quality of the first side link between the first terminal and the relay terminal; The wireless channel quality of the second side link between the second terminal and the relay terminal; The wireless channel quality of the third side link between the first terminal and the second terminal; The first terminal determines the target transmission method based on the first information, including at least one of the following: If the wireless channel quality of the third side link is lower than a fourth preset threshold, and the wireless channel quality of both the first side link and the second side link is higher than a fifth preset threshold, the first terminal determines the target transmission mode as the first transmission mode. If the first terminal determines the target transmission mode as the second transmission mode when the wireless channel quality of the third side link is higher than a sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold.

2. The method for determining the transmission mode according to claim 1, characterized in that, The first information includes at least one of the following: The transmission delay of the first side link between the first terminal and the relay terminal; The transmission delay of the second side link between the second terminal and the relay terminal; The transmission delay of the third side link between the first terminal and the second terminal; The transmission delay threshold for the information to be transmitted between the first terminal and the second terminal; The amount of data to be transmitted between the first terminal and the second terminal.

3. The method for determining the transmission mode according to claim 2, characterized in that, The first terminal determines the target transmission method based on the first information, including at least one of the following: If the wireless channel quality of the third side link is lower than a first preset threshold, the first terminal determines that the target transmission mode is the first transmission mode. If the wireless channel quality of the third side link is higher than or equal to a first preset threshold, the first terminal determines that the target transmission mode is the second transmission mode. If the wireless channel quality of the third side link is lower than the second preset threshold and the wireless channel quality of the first side link is higher than the third preset threshold, the first terminal determines the target transmission mode as the first transmission mode. If the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the first terminal determines that the target transmission mode is the first transmission mode. If at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the first terminal determines that the target transmission mode is the second transmission mode.

4. The method for determining the transmission mode according to claim 2, characterized in that, The first terminal determines the target transmission method based on the first information, including at least one of the following: If the first terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method is less than or equal to the transmission delay threshold of the information to be transmitted; If the first terminal determines the target transmission mode as the second transmission mode when the transmission delay budget corresponding to the first transmission mode is greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay threshold of the information to be transmitted; If the first terminal determines the target transmission method as the second transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay budget corresponding to the first transmission method; If the first terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is greater than the transmission delay budget corresponding to the first transmission method; If the transmission delay budget corresponding to the first transmission mode and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, the first terminal determines the target transmission mode as the third transmission mode. The transmission delay budget is obtained by summing the transmission delays of all side links included in the transmission path corresponding to the first transmission mode.

5. The method for determining the transmission mode according to claim 2, characterized in that, The first terminal determines the target transmission method based on the first information, including: Based on the first information, the first terminal determines the target transmission mode as the second transmission mode when the target conditions are met; wherein the target conditions include at least one of the following: The amount of data in the information to be transmitted is less than an eighth preset threshold; The wireless channel quality of the third side link is higher than or equal to the ninth preset threshold; There is no transmission path between the first terminal and the second terminal corresponding to the first transmission method.

6. The method for determining the transmission mode according to any one of claims 2 to 5, characterized in that, The first terminal acquires first information, including at least one of the following: The first terminal measures the wireless channel quality and / or transmission delay of the first side link; The first terminal receives the wireless channel quality and / or transmission delay from the first side link of the relay terminal; The first terminal receives the wireless channel quality and / or transmission delay of the second side link from the relay terminal; The first terminal receives the wireless channel quality and / or transmission delay from the second side link of the second terminal; The first terminal measures the wireless channel quality and / or transmission delay of the third side link; The first terminal receives the wireless channel quality and / or transmission delay from the third side link of the relay terminal; The first terminal receives the wireless channel quality and / or transmission delay from the third side link of the second terminal; The first terminal determines the transmission delay threshold of the information to be transmitted between the first terminal and the second terminal according to communication requirements; The first terminal determines the amount of data to be transmitted between the first terminal and the second terminal based on communication requirements.

7. The method for determining the transmission mode according to any one of claims 1 to 6, characterized in that, The first terminal acquires first information, including: The first terminal acquires the first information when communicating with the second terminal using the current transmission method, or during the process of establishing a transmission path corresponding to the initial transmission method.

8. The method for determining the transmission mode according to any one of claims 1 to 7, characterized in that, The method further includes: The first terminal establishes a transmission path corresponding to the target transmission method; The first terminal communicates with the second terminal using the target transmission method based on the transmission path.

9. A method for determining a transmission mode, characterized in that, include: The relay terminal acquires first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal; The relay terminal determines the target transmission method based on the first information; wherein the target transmission method includes at least one of the following: A first transmission mode is used to indicate that the first terminal and the second terminal communicate through the relay terminal; The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link; The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices; The first information includes: The wireless channel quality of the first side link between the first terminal and the relay terminal; The wireless channel quality of the second side link between the second terminal and the relay terminal; The wireless channel quality of the third side link between the first terminal and the second terminal; The relay terminal determines the target transmission method based on the first information, including at least one of the following: When the wireless channel quality of the third side link is lower than a fourth preset threshold, and the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than a fifth preset threshold, the relay terminal determines the target transmission mode as the first transmission mode. If the relay terminal determines the target transmission mode as the second transmission mode when the wireless channel quality of the third side link is higher than a sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold.

10. The method for determining the transmission mode according to claim 9, characterized in that, The first information includes at least one of the following: The transmission delay of the first side link between the first terminal and the relay terminal; The transmission delay of the second side link between the second terminal and the relay terminal; The transmission delay of the third side link between the first terminal and the second terminal; The transmission delay threshold for the information to be transmitted between the first terminal and the second terminal; The amount of data to be transmitted between the first terminal and the second terminal.

11. The method for determining the transmission mode according to claim 10, characterized in that, The relay terminal determines the target transmission method based on the first information, including at least one of the following: When the wireless channel quality of the third side link is lower than a first preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode. If the wireless channel quality of the third side link is higher than or equal to a first preset threshold, the relay terminal determines the target transmission mode as the second transmission mode. When the wireless channel quality of the third side link is lower than the second preset threshold and the wireless channel quality of the first side link is higher than the third preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode. If the wireless channel quality of the first side link and the wireless channel quality of the second side link are both higher than the fifth preset threshold, the relay terminal determines that the target transmission mode is the first transmission mode. If at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold, the relay terminal determines that the target transmission mode is the second transmission mode.

12. The method for determining the transmission mode according to claim 10, characterized in that, The relay terminal determines the target transmission method based on the first information, including at least one of the following: If the relay terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method is less than or equal to the transmission delay threshold of the information to be transmitted; If the relay terminal determines the target transmission mode as the second transmission mode when the transmission delay budget corresponding to the first transmission mode is greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay threshold of the information to be transmitted; The relay terminal determines the target transmission method as the second transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is less than or equal to the transmission delay budget corresponding to the first transmission method. The relay terminal determines the target transmission method as the first transmission method when the transmission delay budget corresponding to the first transmission method and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, and the transmission delay of the third side link is greater than the transmission delay budget corresponding to the first transmission method. If the transmission delay budget corresponding to the first transmission mode and the transmission delay of the third side link are both greater than the transmission delay threshold of the information to be transmitted, the relay terminal determines the target transmission mode as the third transmission mode. The transmission delay budget is obtained by summing the transmission delays of all side links included in the transmission path corresponding to the first transmission mode.

13. The method for determining the transmission mode according to claim 10, characterized in that, The relay terminal determines the target transmission method based on the first information, including: Based on the first information, the relay terminal determines the target transmission mode as the second transmission mode when the target conditions are met; wherein the target conditions include at least one of the following: The amount of data in the information to be transmitted is less than an eighth preset threshold; The wireless channel quality of the third side link is higher than or equal to the ninth preset threshold; There is no transmission path between the first terminal and the second terminal corresponding to the first transmission method.

14. The method for determining the transmission mode according to any one of claims 10 to 13, characterized in that, The relay terminal acquires first information, including at least one of the following: The relay terminal measures the wireless channel quality and / or transmission delay of the first side link; The relay terminal receives the wireless channel quality and / or transmission delay from the first side link of the first terminal; The relay terminal measures the wireless channel quality and / or transmission delay of the second side link; The relay terminal receives the wireless channel quality and / or transmission delay from the second side link of the second terminal; The relay terminal receives wireless channel quality and / or transmission delay from the third side link of the first terminal or the second terminal; The relay terminal receives the transmission delay threshold of the information to be transmitted between the first terminal and the second terminal from the first terminal or the second terminal. The relay terminal receives the amount of data from the first terminal or the second terminal, representing the information to be transmitted between the first terminal and the second terminal.

15. The method for determining the transmission mode according to any one of claims 9 to 14, characterized in that, The method further includes: The relay terminal sends the target transmission mode to the first terminal and / or the second terminal; wherein the target transmission mode is used to instruct the first terminal or the second terminal to establish a transmission path corresponding to the target transmission mode.

16. A transmission mode determination device, applied to a first terminal, characterized in that, include: The first acquisition module is used to acquire first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal; A first determining module is configured to determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following: A first transmission mode is used to indicate that the first terminal and the second terminal communicate through a relay terminal; The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link; The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices; The first information includes: The wireless channel quality of the first side link between the first terminal and the relay terminal; The wireless channel quality of the second side link between the second terminal and the relay terminal; The wireless channel quality of the third side link between the first terminal and the second terminal; Determining the target transmission method based on the first information includes at least one of the following: If the wireless channel quality of the third side link is lower than a fourth preset threshold, and the wireless channel quality of both the first side link and the second side link is higher than a fifth preset threshold, the first terminal determines the target transmission mode as the first transmission mode. If the first terminal determines the target transmission mode as the second transmission mode when the wireless channel quality of the third side link is higher than a sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold.

17. A transmission mode determination device, applied to a relay terminal, characterized in that, include: The second acquisition module is used to acquire first information; wherein, the first information is used to indicate the target transmission method used for communication between the first terminal and the second terminal; The second determining module is configured to determine the target transmission method based on the first information; wherein the target transmission method includes at least one of the following: A first transmission mode is used to indicate that the first terminal and the second terminal communicate through the relay terminal; The second transmission method is used to indicate that the first terminal and the second terminal communicate through a one-hop side link; The third transmission method is used to indicate that the first terminal and the second terminal communicate through network-side devices; The first information includes: The wireless channel quality of the first side link between the first terminal and the relay terminal; The wireless channel quality of the second side link between the second terminal and the relay terminal; The wireless channel quality of the third side link between the first terminal and the second terminal; Determining the target transmission method based on the first information includes at least one of the following: If the wireless channel quality of the third side link is lower than a fourth preset threshold, and the wireless channel quality of both the first side link and the second side link is higher than a fifth preset threshold, the first terminal determines the target transmission mode as the first transmission mode. If the first terminal determines the target transmission mode as the second transmission mode when the wireless channel quality of the third side link is higher than a sixth preset threshold, and at least one of the wireless channel quality of the first side link and the wireless channel quality of the second side link is lower than a seventh preset threshold.

18. A first terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the transmission mode determination method as described in any one of claims 1 to 8.

19. A relay terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the transmission mode determination method as described in any one of claims 9 to 15.

20. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions, which, when executed by a processor, implement the transmission mode determination method as described in any one of claims 1-8, or implement the steps of the transmission mode determination method as described in any one of claims 9 to 15.

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