Data transmission method, related device and readable storage medium

Abstract

This application discloses a data transmission method, a related device and a readable storage medium, which belong to the technical field of communication. The data transmission method includes a step of a main terminal performing a first operation, the first operation includes at least one of receiving downlink information of a first object sent from a network side device and sending uplink information of the first object to the network side device, the first object includes some or all of Q terminals, the Q terminals support jointly receiving data of a first service, the main terminal is a main terminal of the Q terminals, and Q is an integer greater than 1.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202110482605.9, filed in China on April 30, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and more particularly to data transmission methods, related devices and readable storage media. [Background technology]

[0003] In the conventional mechanism, each terminal establishes its own control plane connection and user plane connection with the core network / access network, such as a Non-Access Stratum (NAS) connection in the core network control plane, a Radio Resource Control (RRC) connection in the access network control plane, a Protocol Data Unit (PDU) session in the core network user plane, and a Data Radio Bearer (DRB) or Quality of Service (QoS) flow in the access network user plane. That is, the control plane connection and user plane connection of each terminal are independent. Therefore, the RRC connection maintenance and service transmission of each terminal are independent of each other.

[0004] According to the conventional mechanism, when it is desired to continuously transmit one common service on two terminals, the user needs to set the service reception and reception progress on one terminal so as to achieve the effect of continuously receiving the same service on the two terminals, but this reduces the autonomy of multiple terminals jointly receiving the same service. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide a data transmission method, a related device, and a readable storage medium that can solve the problem of low autonomy in the prior art in which multiple terminals jointly receive the same service. [Means for solving the problem]

[0006] In the first aspect, The method includes a step of a main terminal performing a first operation, the first operation including: receiving downlink information of a first object transmitted from a network side device; sending the uplink information of the first object to the network side device; The data transmission method includes: the first object includes some or all of Q terminals; the Q terminals support jointly receiving data of a first service; the main terminal is a main terminal among the Q terminals; and Q is an integer greater than 1.

[0007] In a second aspect, The sub-terminal performs a third operation, the third operation including: receiving downlink information of the sub-terminal from a second object; and transmitting the uplink information of the secondary terminal to a second object; The data transmission method includes: a network side device; a main terminal among Q terminals; the Q terminals support joint reception of data of a first service; and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1.

[0008] In a third aspect, The network side device performs a fourth operation, the fourth operation including: transmitting downlink information of the fourth object to the third object; receiving uplink information of the fourth object transmitted from the third object; The third object includes a main terminal among Q terminals, and the Q terminals support joint reception of data of a first service. The fourth object includes some or all of the Q terminals, and Q is an integer greater than 1.

[0009] In a fourth aspect, a first execution module for executing a first operation, the first operation comprising: receiving downlink information of a first object transmitted from a network side device; sending the uplink information of the first object to the network side device; The data transmission device includes: the first object including some or all of Q terminals; the Q terminals supporting joint reception of data of a first service; the main terminal being a main terminal among the Q terminals; and Q being an integer greater than 1.

[0010] In a fifth aspect, a third execution module for performing a third operation, the third operation comprising: receiving downlink information of the sub-terminal from a second object; and transmitting the uplink information of the secondary terminal to a second object; The second object is a network side device or a main terminal among Q terminals, the Q terminals support joint reception of data of a first service, and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1.

[0011] In a sixth aspect, a fourth execution module for performing a fourth operation, the fourth operation comprising: transmitting downlink information of the fourth object to the third object; receiving uplink information of the fourth object transmitted from the third object; The third object includes a main terminal among Q terminals, and the Q terminals support joint reception of data of a first service. The fourth object includes some or all of the Q terminals, and Q is an integer greater than 1.

[0012] In a seventh aspect, there is provided a communications device comprising a processor, a memory, and a program or command stored in the memory and executable on the processor, wherein when the program or command is executed by the processor, the steps of the method of the first, second or third aspect are realized.

[0013] In an eighth aspect, there is provided a communications device, the communications device including a processor and a communications interface; When the communication device is a main terminal, the communication interface for performing a first operation, the first operation comprising: receiving downlink information of a first object transmitted from a network side device; sending the uplink information of the first object to the network side device; The first object includes some or all of Q terminals, and the Q terminals support jointly receiving data of a first service, and the main terminal is a main terminal among the Q terminals, where Q is an integer greater than 1.

[0014] When the communication device is a sub-terminal, the communication interface and performing a third operation, the third operation comprising: receiving downlink information of the sub-terminal from a second object; and transmitting the uplink information of the secondary terminal to a second object; The second object is a network side device or a main terminal among Q terminals, the Q terminals support jointly receiving data of a first service, and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1.

[0015] When the communication device is a network side device, the communication interface and performing a fourth operation, the fourth operation comprising: transmitting downlink information of the fourth object to the third object; receiving uplink information of the fourth object transmitted from the third object; The third object includes a main terminal among Q terminals, and the Q terminals support joint reception of data of a first service, and the fourth object includes some or all of the Q terminals, where Q is an integer greater than 1.

[0016] In a ninth aspect, there is provided a readable storage medium having stored thereon a program or commands which, when executed by a processor, cause the steps of the method of the first, second or third aspect to be realized.

[0017] In a tenth aspect, there is provided a chip including a processor and a communications interface, wherein the communications interface and the processor are coupled together, and the processor is configured to implement a method according to the first, second or third aspect by executing a program or command.

[0018] In an eleventh aspect, there is provided a computer program / program product stored on a non-volatile storage medium, which, when executed by at least one processor, implements a method according to the first, second or third aspect.

[0019] In a twelfth aspect, there is provided a communications device configured to perform the steps of the method according to the first aspect, or to perform the steps of the method according to the second aspect, or to perform the steps of the method according to the third aspect. [Effects of the Invention]

[0020] In an embodiment of the present application, information of Q terminals that support jointly receiving a first service can be transmitted independently, or information of a sub-terminal among the Q terminals can be transmitted with the cooperation of a main terminal. From this, it can be seen that the network side device can set up an aggregated bearer or a dedicated bearer for the Q terminals, and the Q terminals can realize joint reception of the same service under the control of the network side device, which can improve the autonomy of the Q terminals jointly receiving the same service, and further improve the service experience and system efficiency. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic diagram of a wireless communication system provided in an embodiment of the present application; [Figure 2] 1 is a flowchart 1 of a data transmission method provided in an embodiment of the present application; [Figure 3] 2 is a flowchart 2 of the data transmission method provided in the embodiment of the present application. [Figure 4] 3 is a flowchart 3 of a data transmission method provided in an embodiment of the present application. [Figure 5] 1 is a structural diagram of a data transmission device provided in an embodiment of the present application; [Figure 6] 2 is a structural diagram of a data transmission device provided in an embodiment of the present application; [Figure 7] 3 is a structural diagram of a data transmission device provided in an embodiment of the present application; [Figure 8] FIG. 1 is a structural diagram of a communication device provided in an embodiment of the present application; [Figure 9] FIG. 1 is a structural diagram of a terminal provided in an embodiment of the present application; [Figure 10] FIG. 2 is a structural diagram of a network-side device provided in an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, the technical solutions in the embodiments of the present application will be clearly explained with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments in the present application are all within the scope of protection of the present application.

[0023] The terms "first," "second," etc. in the specification and claims of this application are not intended to describe a particular order or chronology, but rather to distinguish between similar objects. It should be understood that terms used in this manner may be interchanged where appropriate so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. It should also be understood that the objects distinguished by "first," "second," etc. are generally of one type and do not limit the number of objects; for example, the first object may be one or multiple. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0024] It should be noted that the techniques described in the embodiments of this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but may 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 the embodiments of this application are often used interchangeably, and the techniques described may be used in other systems and wireless technologies in addition to those mentioned above. While the following description will discuss New Radio (NR) systems for illustrative purposes, and NR terminology is used in much of the following description, these technologies may also be used in other systems and wireless technologies, such as 6th Generation (6G) networks. th It can also be applied to applications other than NR system applications, such as 6G (Generation 6G) communication systems.

[0025] FIG. 1 is a schematic diagram of a wireless communication system provided in an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be referred to as a terminal device or user equipment (UE), and may be a terminal-side device such as a mobile phone, a tablet personal computer (PC), a laptop computer (also known as a notebook computer), a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc. Wearable devices include smart watches, wristbands, earphones, glasses, etc. It should be noted that the embodiment of the present application is not limited to a specific type of the terminal 11.The network side device 12 may be a base station or a core network, of which the base station may be called a Node B, evolved Node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved Node B (eNB), home B node, home evolved B node, wireless local area network (WLAN) access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, and as long as the same technical effect can be achieved, the base station is not limited to a specific technical term. It should be noted that the embodiments of this application only take base stations in an NR system as examples, but the specific type of base station is not limited.

[0026] Hereinafter, the embodiments of the present application will be described in detail with reference to the drawings through several examples and application scenarios.

[0027] FIG. 2 is a flowchart of a data transmission method provided in an embodiment of the present application. The data transmission method of FIG. 2 can be performed by a main terminal. As shown in FIG. 2, The method may include step 201 in which the main terminal performs a first operation.

[0028] The primary terminal is a primary terminal among Q terminals, where Q is an integer greater than 1. The Q terminals may include one primary terminal and Q-1 secondary terminals. The primary terminal among the Q terminals may be determined based on at least one of the time order of network access, terminal capabilities, and terminal link quality. In practice, the primary terminal among the Q terminals may change. For example, when determining the primary terminal based on the link quality of the terminals, assuming that the Q terminals include UE1 and UE2, if the link quality of UE1 is higher than the link quality of UE2 at a first time point, UE1 may be determined as the primary terminal. If the link quality of UE2 improves and the link quality of UE2 becomes higher than the link quality of UE1 at a second time point, UE2 may be determined as the primary terminal.

[0029] In an embodiment of the present application, the Q terminals can support joint reception of data of a first service, that is, the Q terminals can support joint reception of data of the same service. In an embodiment of the present application, the Q terminals that support joint reception of data of the same service may have an association relationship.

[0030] Specifically, the Q terminals supporting joint reception of data of the first service may be any one of the following:

[0031] The types of data of the first service received by the Q terminals are different, i.e., different types of data of the first service are transmitted to different terminals, for example, different data flows are transmitted to different terminals. The data flows can be distinguished by QoS flows, and data with the same or similar QoS requirements can be mapped to the same QoS flow. In implementation, different data flows of the first service may be transmitted to bearers (Radio Bearers, RBs) corresponding to different terminals. For example, a user may use UE1 to receive data flows 1 and 2 of the first service and UE2 to receive data flows 3 and 4 of the first service at the same time.

[0032] The data types of the first service received by the Q terminals are the same, i.e., data of the same type of the first service is divided or copied and transmitted to different terminals, for example, the same data flow is transmitted to different terminals. In implementation, data of the same RB corresponding to the first service may be divided or copied and transmitted to different terminals. For example, users UE1 and UE2 can simultaneously use UE1 and UE2 to receive data flows 1 and 2 of the first service, and the data of the first service received by UE1 and the data of the first service received by UE2 may be the same or different. If they are the same, duplication detection and deletion can be performed on the data, and if they are different, a sorting operation can be performed on the received data.

[0033] In a specific implementation, the first operation is: receiving downlink information of a first object transmitted from a network side device; and transmitting the uplink information of the first object to the network side device; The first object includes some or all of the Q terminals.

[0034] The embodiment of the present application may include the following case 1 and case 2.

[0035] In case 1, the main terminal only supports transmission of its own information (the information may include at least one of uplink information and downlink information).

[0036] In case 2, the main terminal supports at least the transmission of information of the first object, and in some embodiments, the main terminal may support the transmission of information of the Q terminals.

[0037] It should be noted that in the embodiments of the present application, when the main terminal supports the transmission of information of a certain terminal, it does not necessarily mean that the information of the terminal is transmitted by the main terminal. For example, assuming that the main terminal supports the transmission of information of the sub-terminal a, when the sub-terminal a has not established an RRC connection with the network side device, the information of the sub-terminal a may be proxy-transmitted by the main terminal (i.e., the configuration information or report information of the sub-terminal is carried in the signaling of the main terminal, and the sub-terminal does not have its own signaling process). However, when the sub-terminal a has established an RRC connection with the network side device, the information of the sub-terminal a may be directly transmitted through the communication interface between the sub-terminal a and the network side device, or may be relayed and forwarded by the main terminal (which may also be referred to as relay, relay transmission, or cooperative transmission). In addition, the information of the main terminal may be relayed and forwarded by other sub-terminals that have established an RRC connection with the network side device. The specific details may be determined according to actual circumstances, and are not limited to this in the embodiments of the present application.

[0038] In case 1, the communication interface between the main terminal and the network side device is only used for transmitting information of the main terminal, and the first object is the main terminal. The information of each of the Q terminals may be transmitted through the interface between the terminal and the network side device, that is, the information of the Q terminals may be transmitted independently.

[0039] In case 2, the communication interface between the main terminal and the network side device may transmit information of some or all of the Q terminals, and the first object may include at least one of the Q terminals. In this case, the information of the sub-terminals of the Q terminals may be transmitted via the path between the sub-terminals and the main terminal and the path between the main terminal and the network side device, that is, the information of the sub-terminals may be relayed or proxy-transmitted by the main terminal. Of course, it can be understood that the information of the sub-terminals of the Q terminals may also be transmitted via the communication interface between the terminal itself and the network side device, and the specific details may be determined according to actual circumstances, and are not limited to this in the embodiments of the present application.

[0040] Optionally, the Q terminals include at least one sub-terminal, and the method includes: The method may further include the step of the main terminal performing a second operation, wherein the second operation includes: receiving first downlink information of a first terminal and then transmitting the first downlink information to the first terminal, wherein the first terminal is a sub-terminal of any one of the first objects; Before transmitting first uplink information of a second terminal, receiving the first uplink information transmitted from the second terminal, wherein the second terminal is a sub-terminal of any one of the first objects.

[0041] In a specific implementation, for the downlink information of the secondary terminal, the network side equipment may send it to the primary terminal through the communication interface between the primary terminal and the network side equipment, and then the primary terminal sends it to the secondary terminal through the communication interface between the terminals.

[0042] For the uplink information of the secondary terminal, the secondary terminal may send it to the primary terminal through the communication interface between the terminals, and then the primary terminal sends it to the network side equipment through the communication interface between the primary terminal and the network side equipment.

[0043] It should be noted that when the first object includes at least two terminals, the information of each terminal in the first object may be transmitted together or independently between the main terminal and the network side device, and the specific details may be determined according to the actual situation, and the embodiments of the present application do not limit this.

[0044] In the data transmission method of this embodiment, the master terminal may transmit only its own information, or may transmit information of Q terminals that support jointly receiving the first service. From this, it can be seen that the network side device can set up an aggregated bearer or a dedicated bearer for the Q terminals, and the Q terminals can realize joint reception of the same service under the control of the network side device, thereby improving the autonomy of the Q terminals jointly receiving the same service, and further improving the service experience and system efficiency.

[0045] In the embodiment of the present application, optionally, the downlink information may include, but is not limited to, at least one of a Timing Advance (TA), a Cell-Radio Network Temporary Identifier (C-RNTI), and resource scheduling information. Furthermore, the resource scheduling information may include at least one of dynamic resource scheduling information and semi-static resource scheduling information.

[0046] Optionally, the uplink information may include, but is not limited to, at least one of physical layer control information, Media Access Control (MAC) layer control information, and Hybrid Automatic Repeat Request (HARQ) feedback information. Furthermore, the MAC layer control information may include at least one of the following MAC Control Elements (CE): a Buffer Status Report (BSR), a Power Headroom Report (PHR), and a Recommended Bit Rate (Recommended Bit Rate).

[0047] In the embodiments of the present application, for the timers of control information, such as the BSR retransmission timer, the BSR cycle timer, etc., the timers of each terminal may be maintained separately for each UE, that is, each UE may maintain its own timer, or the main terminal may perform unified maintenance.

[0048] Depending on the information, the transmission method may differ, and a specific explanation is given below.

[0049] First, the downlink information includes a TA.

[0050] In this case, the network side device may transmit the downlink information by a contention-based random access procedure, or may transmit the downlink information by a non-contention-based random access procedure. That is, the sub-terminal may acquire its own TA by a contention-based random access procedure, or may acquire its own TA by a non-contention-based random access procedure.

[0051] Furthermore, the downlink information may further include a C-RNTI, i.e., the C-RNTI may also be transmitted by a random access process. Of course, in some embodiments, the C-RNTI may also be transmitted by dedicated signaling.

[0052] When the downlink information of the secondary terminal is transmitted by a contention-based random access procedure, the secondary terminal may establish an RRC connection with the network side device and then transmit the identification information of the primary terminal to the network side device through the communication interface between the secondary terminal and the network side device. In this way, the network side device can know the association relationship between the primary terminal and the secondary terminals, and further establish a first architecture for joint transmission by the Q terminals.

[0053] The first architecture of the embodiment of the present application may be interpreted as an architecture such as reverse dual connectivity (DC), because the DC architecture is for data transmission between one terminal and two network side devices, while the first architecture is for data transmission between Q terminals and one network side device. In addition, the first architecture is for joint transmission among multiple terminals, including multiple terminals, and therefore may be referred to as a multi-UE architecture or a multi-UE joint transmission architecture.

[0054] When the downlink information of the secondary terminal is transmitted by a non-contention access process, the method includes: receiving first information sent from the network side device after the main terminal establishes an RRC connection with the network side device, the first information including a dedicated random access resource of a third terminal; The method may further include a step of the main terminal transmitting the first information to a third terminal; The third terminal includes at least one sub-terminal of the Q terminals.

[0055] In this embodiment, after establishing an RRC connection with a primary terminal, the network side device may send at least one dedicated random access resource to the primary terminal. The primary terminal may send the at least one dedicated random access resource to a secondary terminal. Among the Q terminals, there is at least one secondary terminal that can initiate a non-contention-based random access procedure using the dedicated random access resource allocated by the network side device to obtain a TA. In this case, since the secondary terminal uses the dedicated random access resource allocated by the network side device to initiate a non-contention-based random access procedure to obtain a TA, the network side can know the association relationship between the primary terminal and the secondary terminal, and further establish a first architecture for joint transmission among the Q terminals.

[0056] In addition, the network side device may also transmit the C-RNTI when transmitting the dedicated random access resource, so that the sub-terminal can receive the dedicated random access resource and the C-RNTI through one piece of information.

[0057] It should be noted that in the embodiments of the present application, different terminals can share the same TA and / or C-RNTI. For example, assuming that the Q terminals include UE1 and UE2, where UE1 is a primary terminal and UE2 is a secondary terminal, and the distance between UE1 and UE2 is short, the TAs of the two terminals can be considered to be the same, and UE2 can directly use the TA of UE1, and UE2 may not need a RACH, and the network side equipment can directly implement a dual-UE architecture.

[0058] Second, the downlink information includes resource scheduling information.

[0059] In this case, the resource scheduling information of each terminal may be transmitted independently or may be transmitted by the main terminal, that is, the resource scheduling information of each terminal may be applied in the above-mentioned case 1 or in the above-mentioned case 2.

[0060] When the resource scheduling information of each terminal is transmitted by the main terminal, optionally, the resource scheduling information of each terminal in the first object is determined by one of an instruction by the downlink information, an allocation by the main terminal, and a negotiation by the first object.

[0061] In a scenario where the resource scheduling information of each terminal in the first object is indicated by the downlink information, the network side device may include the resource scheduling information of each terminal and the identification information of the terminal corresponding to each resource scheduling information in the downlink information. In this way, after receiving the downlink information, the main terminal can know the resource scheduling information of each terminal and transmit each resource scheduling information to each sub-terminal.

[0062] When the resource scheduling information of each terminal in the first object is allocated by the main terminal, the network side device only allocates the resource scheduling information of the Q terminals and does not indicate the resource scheduling information corresponding to each terminal. After receiving the downlink information, the main terminal may determine the resource scheduling information of each terminal by itself and send each resource scheduling information to each sub-terminal.

[0063] When the resource scheduling information of each terminal in the first object is negotiated by the first object, the network side device only allocates the resource scheduling information of the Q terminals and does not indicate the resource scheduling information corresponding to each terminal. After receiving the downlink information, the main terminal may forward the downlink information to each terminal, and each terminal may negotiate and determine its corresponding resource scheduling information.

[0064] It should be mentioned that the above embodiments are applicable to dynamic resource scheduling information and / or semi-static resource scheduling information.

[0065] Considering the strict requirement for timeliness of the dynamic resource scheduling information, an independent transmission method may be adopted for the dynamic resource scheduling information of each terminal.

[0066] Regarding the semi-static resource scheduling information, allocation and activation of semi-static resources, the semi-static resource scheduling information can be divided into two types: one in which the RRC signaling directly indicates information such as time-frequency resource location and periodicity, and the UE can use it directly without any activation; and one in which the RRC signaling only indicates periodicity information, and the UE needs to further monitor the scheduling or activation of the Physical Downlink Control Channel (PDCCH) for the time-frequency resource location information.

[0067] For the former type, the semi-static resource scheduling information of each terminal may be transmitted independently or may be transmitted by the main terminal.

[0068] For the latter type, the periodicity information of each terminal may be transmitted independently or transmitted by the main terminal, and the time-frequency resource location information of each terminal may be transmitted independently to increase the activation speed of semi-static resources.

[0069] In an embodiment of the present application, semi-static resources can be temporarily ceded between terminals.

[0070] Optionally, when the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the main terminal performs a first operation, the method includes: receiving third information sent by the main terminal from a fifth terminal, the third information indicating that a first semi-static resource of the fifth terminal is in an idle state; The method further includes the step of transmitting fourth information by the main terminal through the first semi-static resource, where the fourth information includes identification information of the main terminal and data of the main terminal; The fifth terminal is a sub-terminal of any one of the Q terminals.

[0071] In this embodiment, if the fifth terminal has no data to send or receive on its first semi-static resource, it may transfer the first semi-static resource to another terminal through interaction between terminals, thereby improving resource utilization.

[0072] In a specific implementation, the transmission of the fourth information may specifically include at least one of sending information of the main terminal and receiving information of the main terminal, and the fourth information may include identification information of the terminal so that a receiver of the fourth information can easily determine which terminal the fourth information specifically belongs to.

[0073] Optionally, when the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the main terminal performs a first operation, the method includes: The method further includes the step of: sending fifth information from the main terminal to a sixth terminal, the fifth information indicating that a second semi-static resource of the main terminal is in an idle state; The sixth terminal includes at least one sub-terminal of the Q terminals.

[0074] In this embodiment, if the main terminal has no data to send or receive on its second semi-static resource, it may transfer the second semi-static resource to another terminal through interaction between terminals, thereby improving resource utilization.

[0075] In the embodiment of the present application, in the first embodiment, the network side device may allocate Q first uplink dedicated resources to the Q terminals, and the Q first uplink dedicated resources correspond to the Q terminals respectively, that is, the network side device allocates an independent uplink dedicated resource to each terminal for reporting uplink information.

[0076] In this embodiment, the uplink information of each terminal may be transmitted independently, and the uplink information of the sub-terminal may be transmitted to the network side device by the sub-terminal through an uplink dedicated resource corresponding to the sub-terminal. The first object is some or all of the Q terminals.

[0077] In the second embodiment, the network side device may allocate second uplink dedicated resources to a primary terminal of the Q terminals, and the second uplink dedicated resources correspond to the Q terminals. That is, the network side device may allocate and transmit all of the uplink dedicated resources of the Q terminals to the primary terminal, and the primary terminal may help other secondary terminals report uplink information.

[0078] In this embodiment, the uplink information of the secondary terminal may be relayed or proxy-transmitted by the primary terminal, and the uplink information of the secondary terminal is transmitted to the primary terminal, and then transmitted to the network side device by the primary terminal through the uplink dedicated resource corresponding to the primary terminal. The first object is the primary terminal.

[0079] In implementation, the uplink dedicated resources may include at least one of an uplink dedicated scheduling request (D-SR) resource and a physical uplink control channel (PUCCH) resource.

[0080] Optionally, the main terminal sends the uplink information of the first object to the network side device: 1) A main terminal transmits uplink information of a fourth terminal to a network side device at a first time-frequency resource location, where the first time-frequency resource location corresponds to the fourth terminal, and the fourth terminal is one of the first objects; 2) The main terminal sends second information to the network side device, and the second information includes at least one piece of uplink information and identification information of the terminal corresponding to the at least one piece of uplink information.

[0081] In this embodiment, the main terminal can transmit information of the sub-terminal, and the terminal can transmit the information of the sub-terminal in manner 1) or 2), so that the network side device can easily distinguish the information of each terminal, and the efficiency of information transmission is further improved.As for downlink information, when the network side device transmits the downlink information of each terminal, it can be understood that it can transmit the downlink information in the same transmission manner as the uplink information, so that the main terminal can easily distinguish the information of each terminal, and the efficiency of information transmission is further improved.

[0082] In 1), different time domain resource locations can be assigned to different terminals, and the information of each terminal can be transmitted at its corresponding time domain resource location. In this way, the network side device or the main terminal can determine which terminal the received information belongs to based on the time domain resource location corresponding to the received information.

[0083] In 2), the signaling carrying the terminal information also carries the terminal identification information, so that after receiving the signaling, the network side device or the terminal can determine which terminal the information in the signaling belongs to based on the terminal identification information carried in the signaling.

[0084] It should be noted that in 2), the information of multiple terminals may be transmitted in cascade or independently, and the specific details may be determined according to the actual situation, and the embodiments of this application do not limit this.

[0085] 3 is a flowchart of a data transmission method provided in an embodiment of the present application. The data transmission method of FIG. 3 is executed by a sub-terminal. As shown in FIG. 3, the data transmission method includes: The method may include step 301 in which the secondary terminal performs a third operation.

[0086] The third operation is receiving downlink information of the sub-terminal from a second object; and transmitting the uplink information of the secondary terminal to a second object; The second object is a network side device or a main terminal among Q terminals, the Q terminals support jointly receiving data of a first service, and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1.

[0087] When the second object is a network side device, the information of each terminal may be transmitted independently, and the information of each terminal may be transmitted via an interface between the terminal itself and the network side device.

[0088] When the second object is the main terminal, information of each terminal may be transmitted by the main terminal, and information of the sub-terminal is relayed or proxy-transmitted by the main terminal, that is, information of the sub-terminal is transmitted via the path between the sub-terminal and the main terminal and the path between the main terminal and the network side device.

[0089] In the data transmission method of this embodiment, the information of the sub-terminal may be transmitted by the terminal itself, or may be relayed or proxy-transmitted by the main terminal. From this, it can be seen that the network side device can set up an aggregated bearer or an individual bearer for the Q terminals, and the Q terminals can realize joint reception of the same service under the control of the network side device, which can improve the autonomy of the Q terminals jointly receiving the same service, and further improve the service experience and system efficiency.

[0090] Optionally, the downlink information includes at least one of a TA, a C-RNTI, and resource scheduling information, or the uplink information includes at least one of physical layer control information, MAC layer control information, and HARQ feedback information.

[0091] Alternatively, when the downlink information includes a TA, the downlink information of the secondary terminal is obtained by a contention-based random access procedure, or the downlink information of the secondary terminal is obtained by a non-contention-based random access procedure.

[0092] Optionally, the downlink information further includes a C-RNTI.

[0093] Optionally, when the downlink information of the secondary terminal is obtained by a contention-based random access procedure, the method further comprises: The method further includes a step of transmitting sixth information to the network side device after the secondary terminal establishes an RRC connection with the network side device, where the sixth information includes identification information of the primary terminal.

[0094] Optionally, when the downlink information of the secondary terminal is obtained by a non-contention based random access procedure, the secondary terminal receiving the downlink information of the secondary terminal from the second object, The sub-terminal receives first information sent from the main terminal, the first information including a dedicated random access resource of the sub-terminal; The secondary terminal initiates a non-contention based random access procedure using the dedicated random access resource, where the non-contention based random access procedure is for obtaining a TA.

[0095] Optionally, the first information further includes a C-RNTI of the secondary terminal.

[0096] Alternatively, the uplink information of the secondary terminal is transmitted to the network side device by the secondary terminal through an uplink dedicated resource corresponding to the secondary terminal; or The uplink information of the sub-terminal is transmitted from the main terminal to the network side device through an uplink dedicated resource corresponding to the main terminal.

[0097] Alternatively, the uplink information of the secondary terminal is transmitted at a time domain resource location corresponding to the secondary terminal; or The uplink information of the sub-terminal is carried in second information, and the second information includes the uplink information of the sub-terminal and identification information of the sub-terminal.

[0098] Optionally, when the downlink information includes resource scheduling information, the second object is the network side device or the main terminal.

[0099] Optionally, when the second object is the main terminal, the resource scheduling information of the sub-terminal is determined by one of the following: an indication by the downlink information, an allocation by the main terminal, and a negotiation by some or all of the Q terminals.

[0100] Optionally, when the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the secondary terminal performs a third operation, the method further comprises: receiving seventh information sent by the secondary terminal from a seventh terminal, the seventh information indicating that a third semi-static resource of the first secondary terminal is in an idle state; The method further includes transmitting seventh information by the secondary terminal through the third semi-static resource, the seventh information including identification information of the secondary terminal and data of the secondary terminal; The seventh terminal is any one of the Q terminals other than the sub-terminal.

[0101] In this embodiment, when the semi-static resources of other sub-terminals or the main terminal are idle, the sub-terminal can transmit and receive data using the semi-static resources of other sub-terminals or the main terminal, thereby improving resource utilization.

[0102] Optionally, when the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the secondary terminal performs a third operation, the method further comprises: The method further includes a step of the secondary terminal transmitting eighth information to an eighth terminal, the eighth information indicating that a fourth semi-static resource of the secondary terminal is in an idle state, and the eighth terminal being any one of the Q terminals other than the secondary terminal.

[0103] In this embodiment, a secondary terminal can give up its idle semi-static resources to other secondary terminals or the primary terminal for data transmission and reception, thereby increasing resource utilization.

[0104] It should be noted that this embodiment is an embodiment of a secondary terminal corresponding to the method embodiment of Figure 2, so reference can be made to the relevant description in the method embodiment of Figure 2, and the same beneficial effects can be achieved. To avoid repetition, detailed descriptions will be omitted here.

[0105] 4 is a flowchart of a data transmission method provided in an embodiment of the present application. The data transmission method of FIG. 4 is executed by a network-side device. As shown in FIG. 4, the data transmission method includes: The method may include step 401 in which the network side device performs a fourth operation.

[0106] The fourth operation is transmitting downlink information of the fourth object to the third object; receiving uplink information of the fourth object transmitted from the third object; The third object includes a main terminal among Q terminals, and the Q terminals support joint reception of data of a first service, and the fourth object includes some or all of the Q terminals, where Q is an integer greater than 1.

[0107] In a specific implementation, the third object and the fourth object may be the same object, i.e., the third object and the fourth object include the same terminal, or may be different objects, i.e., the third object and the fourth object include at least one different terminal.

[0108] When the third object and the fourth object are the same object, information of each terminal may be transmitted independently, and information of each terminal may be transmitted via an interface between the terminal and a network side device. It should be noted that when the fourth object includes two or more terminals, information of each terminal in the fourth object may be transmitted simultaneously or in chronological order.

[0109] When the third object is the main terminal and the fourth object includes some or all of the Q terminals, information of each terminal may be transmitted by the main terminal, and information of the sub-terminals is relayed or proxy-transmitted by the main terminal, that is, information of the sub-terminals is transmitted via the path between the sub-terminal and the main terminal and the path between the main terminal and the network side device.

[0110] In the data transmission method of this embodiment, the information of each terminal may be transmitted independently or transmitted by the main terminal. From this, it can be seen that the network side device can set up an aggregated bearer or an individual bearer for the Q terminals, and the Q terminals can realize joint reception of the same service under the control of the network side device, which can improve the autonomy of the Q terminals jointly receiving the same service, and further improve the service experience and system efficiency.

[0111] Optionally, the downlink information includes at least one of a TA, a C-RNTI, and resource scheduling information, or the uplink information includes at least one of physical layer control information, MAC layer control information, and HARQ feedback information.

[0112] Optionally, when the downlink information includes a TA, the downlink information of the fourth object is: Downlink information of a ninth terminal including at least one sub-terminal of the fourth object is transmitted by a contention-based random access procedure; and downlink information of a tenth terminal including at least one sub-terminal of the fourth object is transmitted by a non-contention based random access procedure.

[0113] Optionally, the downlink information further includes a C-RNTI.

[0114] Optionally, when the downlink information of the ninth terminal is transmitted by a contention-based random access procedure, the method further comprises: receiving sixth information transmitted from the ninth terminal after the network side device establishes an RRC connection with the ninth terminal, the sixth information including identification information of the main terminal; The method further includes a step in which the network side device constructs a first architecture including the main terminal and the ninth terminal based on the sixth information.

[0115] Optionally, when the downlink information of the tenth terminal is transmitted by a non-contention based random access procedure, the method further comprises: After the network side device establishes an RRC connection with the main terminal, sending first information to the main terminal, the first information including a dedicated random access resource of the tenth terminal; and after the network side device establishes an RRC connection with the tenth terminal, constructing a first architecture including the main terminal and the tenth terminal.

[0116] Optionally, the first information further includes a C-RNTI of the tenth terminal.

[0117] Optionally, before the network side device performs the fourth operation, the method includes: the network side device allocating Q first uplink dedicated resources to the Q terminals, the Q first uplink dedicated resources corresponding to the Q terminals respectively; and the network side device allocating second uplink dedicated resources to a primary terminal of the Q terminals, the second uplink dedicated resources corresponding to the Q terminals.

[0118] Optionally, when the third object is the main terminal, the network side device receives uplink information of a fourth object transmitted from the third object, A network side device receives uplink information of a fourth object transmitted from the main terminal at a second time-frequency resource location, and the second time-frequency resource location corresponds to the fourth object; The network side device receives second information transmitted from the main terminal, and the second information includes at least one piece of uplink information and identification information of a terminal corresponding to the at least one piece of uplink information.

[0119] Optionally, when the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the network side device performs a fourth operation, the method further comprises: The network side device further includes receiving ninth information through a fifth semi-static resource, the ninth information including identification information of an eleventh terminal and data of the eleventh terminal; The fifth semi-static resource is a semi-static resource allocated to a fifth terminal, the fifth terminal being any one of the Q terminals other than the eleventh terminal, and the eleventh terminal being any one of the Q terminals.

[0120] It should be noted that this embodiment is an embodiment of a network-side device corresponding to the method embodiment of Fig. 2, so reference can be made to the relevant description in the method embodiment of Fig. 2, and the same beneficial effects can be achieved. To avoid repetition, detailed descriptions will be omitted here.

[0121] In the embodiment of the present application, the Xth terminal (for example, the 1st terminal to the 11th terminal) may be any one of the Q terminals. In practice, the Xth sub-terminals may be the same sub-terminal or different sub-terminals, which may be determined according to actual circumstances, and the embodiment of the present application does not limit this.

[0122] The various alternative embodiments described in the examples of the present application may be implemented in combination with each other or independently, and the examples of the present application are not limited thereto.

[0123] For ease of understanding, an example will be given below.

[0124] The present application mainly solves the problem of jointly transmitting services in two or more devices, and may include the following content:

[0125] The second UE may acquire the TA and / or C-RNTI in one of the following ways: the second UE initiates a normal contention-based random access process with the network to acquire the TA and C-RNTI, and the second UE or the first UE reports or requests association of the two UEs; or the first UE acquires a dedicated random access resource and / or a second C-RNTI from the network, and the second UE acquires the TA using a dedicated random access process with the network. The physical layer transmissions of the two UEs are scheduled using different C-RNTIs, and the HARQ feedback is also performed independently according to the existing HARQ feedback mechanism. For semi-static resources, they may be configured for a specific UE or designated for a specific UE during configuration. The transmission of uplink physical layer or MAC layer control information can be performed by the first UE, and different UE identifiers (IDs) can be distinguished, or two UEs can transmit control information respectively in the uplink.

[0126] The following description will be given in relation to an embodiment. Example 1: Obtaining TA

[0127] TA is information that any UE that requires data transmission must obtain in order to perform uplink synchronous transmission, such as uplink HARQ feedback of uplink data or downlink data. The purpose of uplink synchronous transmission is to align the signals of different UEs arriving at the base station, thereby better satisfying orthogonality and improving the reception success rate.

[0128] In an architecture in which two UEs jointly receive the same or related data, the base station needs to establish an architecture such as inverse DC (Dual Connectivity) for the two UEs, and the reason for inverse DC is as follows: Conventional DC connects one UE to two gNBs to transmit data, but the desire of this application is to connect two UEs to one gNB simultaneously to perform data split transmission, which may involve transmitting data on different bearers (Radio Bearers, RBs) to different UEs, or splitting / copying data on the same RB and transmitting it to two UEs.

[0129] Because the distances between the two UEs are different, the two UEs need to maintain their own TA and / or C-RNTI respectively. The UE that first accesses the network is called the primary UE or first UE. This UE first establishes an RRC connection with the network according to the existing procedure and obtains TA or TA+C-RNTI information through the existing contention-based random access process. Then, the UE that accesses the network later is called the secondary UE or second UE. There are two ways for this UE to obtain TA or TA+C-RNTI:

[0130] First, the second UE also autonomously initiates an access process to the network, uses the existing contention-based random access process to obtain TA or TA+C-RNTI information, and includes its association relationship with the first UE in the RRC signaling, so that the base station can subsequently configure a separate DRB or split DRB architecture for the two connected UEs.

[0131] Second, the first UE requests the establishment of a multi-UE architecture in RRC signaling interaction with the base station. After the base station accepts the request, it sends a dedicated random access resource or a dedicated random access resource+a second C-RNTI, such as a dedicated preamble code or a dedicated time-frequency resource location, to the first UE. The first UE transmits the dedicated random access resource information to the second UE via the UE-to-UE interface. The second UE uses the dedicated random access resource to initiate a non-contention-based random access procedure to the network, thereby obtaining the TA or TA+C-RNTI information.

[0132] Through the above two methods, the base station and two UEs can establish the C-RNTI and TA usage and their associated relationship between UEs in the multi-UE architecture, and can subsequently use this information to transmit data in the multi-UE architecture.

[0133] It should be noted that although this embodiment takes the case of two UEs as an example, a similar method can also be applied to the case of more UEs. That is, even if there are two or more second UEs, each can autonomously perform contention random access to the network to obtain TA or TA+C-RNTI and then notify the network of the association relationship, or the first UE can jointly request multiple dedicated random access resources from the network, allocate them to multiple second UEs, and allow them to obtain TA or TA+C-RNTI through a non-contention-based random access procedure.

[0134] The notation TA or TA+C-RNTI exists mainly for the following reasons: TA needs to be obtained by a random access process, while C-RNTI may be obtained by a random access process or assigned by dedicated signaling, and both may be obtained together or separately. Example 2: Uplink control information transmission

[0135] There are two modeling methods for transmitting uplink information:

[0136] In scheme 1, the two UEs are two independent UEs from the L2 / L1 perspective, and each L2 / L1 process completely multiplexes the existing UE operations.

[0137] In Scheme 2, the primary UE is responsible for L2 / L1 uplink transmission and distinguishes UE IDs during transmission.

[0138] There are two reasons for the existence of Scheme 2. One is that the transmission power of other UEs is limited or the uplink transmission cannot be completed successfully for the purpose of power saving. The other is that for the convenience of design and maintenance, there is only one UE uplink from the network side.

[0139] In Scheme 1, uplink dedicated resources, such as uplink D-SR resources and PUCCH resources, are independently allocated to the two UEs for their respective uplink transmissions, and the two UEs independently perform uplink transmissions according to their own needs. From the MAC layer perspective, various MAC CEs, such as BSR (Buffer Status Report), PHR (Power Headroom Report), Recommended bit rate MAC CE, etc., are also transmitted independently according to their own needs, and from the perspective of the system and gNB, two UEs are maintained.

[0140] In Scheme 2, since both uplinks require transmission from one UE, which is generally the primary UE because it has better capabilities or link monitoring mechanisms, it is necessary to distinguish the UE ID during transmission. For L1 information, there are two ways to distinguish the UE ID:

[0141] First, different time-frequency resource locations are assigned to different UEs in terms of resource locations, thereby naturally distinguishing the UEs.

[0142] The second is to include a UE ID identifier in the signaling content, and in the case of two UEs, distinguish between the primary and secondary UEs with one bit.

[0143] Regarding MAC CE, since MAC CE multiplexes transmissions, it cannot distinguish UEs based on the time-frequency resources of transmissions. Therefore, the only way to improve the discrimination and efficiency of reports is to add a field to distinguish UE IDs to the MAC CE PDU format and extend the cascade that allows two or more UE reports.

[0144] On the UE side, the second UE needs to transmit its own L2 / L1 report content to the first UE, and the first UE needs to report it. In addition, during the reporting, timers for control information, such as a BSR retransmission timer and a BSR cycle timer, are also maintained. Therefore, it is better for each UE to maintain these timers individually. That is, each UE can maintain its own timer, or the first UE can uniformly maintain them, and each UE can interact with the first UE to trigger timer status updates, etc.

[0145] Example 3: Resource Scheduling

[0146] Resource scheduling can be divided into two types: dynamic resource scheduling and semi-static resource scheduling.

[0147] Dynamic resource scheduling requires high timeliness and generally requires a response within a few milliseconds. Therefore, it is better for different UEs to perform it independently. That is, in the dynamic scheduling of the first UE, the first UE monitors the PDCCH scheduling information scrambled by its own C-RNTI, and receives or transmits at the resource position indicated in the scheduling information, so that the subsequent feedback position is also performed in the existing manner, and the same is done for the second UE.

[0148] Regarding the allocation and activation of semi-static resources, the semi-static resources can be divided into two types: one in which RRC signaling directly indicates information such as time-frequency resource location and periodicity, and the UE can directly use the semi-static resources without any activation; and one in which RRC signaling only indicates periodicity information, and the UE needs to further monitor PDCCH scheduling or activation for the time-frequency resource location information.

[0149] The RRC signaling part in these two types of semi-static resource allocation has the following two distinguishing methods:

[0150] One is to send RRC signaling to different UEs respectively and allocate only semi-static resources to the UEs.

[0151] The other is to send unified RRC signaling to the first UE, and either explicitly specify which UE the semi-static resource is to be allocated to in the signaling, or let the UE negotiate it by itself, and then configure each UE with its own semi-static resource.

[0152] Generally, each UE can only transmit and receive data at its own semi-static resource location. In particular, if a UE has no data to transmit at its semi-static resource, it can relinquish the semi-static resource once or several times through fast interaction between UEs for transmission by another UE that has data to transmit. The network can distinguish UE data by information such as an explicitly included UE ID or an implicit Logical Channel Identity (LCID).

[0153] As can be seen from the above, in the embodiment of the present application, in multi-UE operation, the UEs perform transmission operations independently, or the primary UE assists the secondary UE in transmission operations.

[0154] When the secondary UE acquires the TA, the secondary UE can acquire the TA or the TA+C-RNTI using a general UE contention-based random access procedure. The secondary UE reports its association with the primary UE to the network. The primary UE can obtain a dedicated random access resource from the network and transfer it to the secondary UE for the secondary UE to obtain a TA or TA+C-RNTI using a non-contention-based random access procedure.

[0155] Multiple UEs independently perform dynamic scheduling reception and subsequent transmission and feedback, and multiple UEs independently obtain, use, and feedback semi-static resources through RRC processes.

[0156] The network transmits semi-static resources of multiple UEs to the primary UE through the RRC process, and the resource allocation of each UE is explicitly indicated, or allocated by the primary UE, or negotiated by the UE and allocated to each UE.

[0157] Semi-static resources can be temporarily handed over between UEs, The network can allocate each UE an independent PUCCH resource for physical layer reporting.

[0158] Each UE can independently perform the MAC CE reporting process.

[0159] The network may allocate and transmit PUCCH resources for all UEs to the primary UE so that the primary UE can assist the reporting by other UEs.

[0160] The primary UE can assist other UEs in MAC CE reporting, distinguish UEs in MAC CE PDU format, cascade, etc.

[0161] According to the embodiment of the present application, the Radio Access Network (RAN) side can set up an aggregated bearer or an individual bearer for multiple UEs, so that the UE can perform joint transmission among multiple devices under the control of the network side, thereby ensuring the service experience of the UE and system efficiency.

[0162] It should be noted that the data transmission method provided in the embodiments of the present application may be executed by a data transmission device or a control module for executing the data transmission method in the data transmission device. In the embodiments of the present application, the data transmission device provided in the embodiments of the present application will be described by taking the data transmission method executed by the data transmission device as an example.

[0163] FIG. 5 is a structural diagram of a data transmission device provided in an embodiment of the present application.

[0164] As shown in FIG. 5, the data transmission device 500 includes: a first execution module 501 for executing a first operation, the first operation comprising: receiving downlink information of a first object transmitted from a network side device; sending the uplink information of the first object to the network side device; The first object includes some or all of Q terminals, and the Q terminals support jointly receiving data of a first service, and the main terminal is a main terminal among the Q terminals, where Q is an integer greater than 1.

[0165] Alternatively, the Q terminals include at least one sub-terminal, and the data transmission device 500: and a second execution module for executing a second operation, the second operation comprising: receiving first downlink information of a first terminal and then transmitting the first downlink information to the first terminal, wherein the first terminal is a sub-terminal of any one of the first objects; Before transmitting first uplink information of a second terminal, receiving the first uplink information transmitted from the second terminal, wherein the second terminal is a sub-terminal of any one of the first objects.

[0166] Optionally, the downlink information includes at least one of a timing advance (TA), a cell radio network temporary identifier (C-RNTI), and resource scheduling information; Or, The uplink information includes at least one of physical layer control information, medium access control (MAC) layer control information, and hybrid automatic repeat request (HARQ) feedback information.

[0167] Alternatively, if the downlink information includes a TA, the data transmission device 500: a first receiving module for receiving first information transmitted from the network side device after establishing an RRC connection with the network side device, the first information including a dedicated random access resource of a third terminal; a second transmitting module for transmitting the first information to a third terminal; The third terminal includes at least one sub-terminal of the Q terminals.

[0168] Optionally, the first information further includes a C-RNTI of the third terminal.

[0169] Optionally, the first execution module 501 specifically: Sending uplink information of a fourth terminal to a network side device at a first time-frequency resource location, wherein the first time-frequency resource location corresponds to the fourth terminal, and the fourth terminal is one of the first objects; The method is used for one of transmitting second information to a network side device, wherein the second information includes at least one piece of uplink information and identification information of a terminal corresponding to the at least one piece of uplink information.

[0170] Optionally, when the downlink information includes resource scheduling information, the first object is some or all of the Q terminals, or the primary terminal.

[0171] Optionally, resource scheduling information of each terminal in the first object is determined by one of an instruction by the downlink information, an allocation by the main terminal, and a negotiation by the first object.

[0172] Alternatively, if the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, the data transmission device 500: a second receiving module for receiving third information transmitted from a fifth terminal, the third information indicating that a first semi-static resource of the fifth terminal is in an idle state; a first transmission module for transmitting fourth information through the first semi-static resource, the fourth information including identification information of the main terminal and data of the main terminal; The fifth terminal is a sub-terminal of any one of the Q terminals.

[0173] Alternatively, if the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, the data transmission device 500: a second transmitting module for transmitting fifth information to a sixth terminal, the fifth information indicating that a second semi-static resource of the primary terminal is in an idle state; The sixth terminal includes at least one sub-terminal of the Q terminals.

[0174] The data transmission device 500 provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 2 and achieve the same technical effects, and to avoid duplication, detailed descriptions will be omitted here.

[0175] FIG. 6 is a structural diagram of a data transmission device provided in an embodiment of the present application.

[0176] As shown in FIG. 6, the data transmission device 600 includes: a third execution module 601 for executing a third operation, the third operation comprising: receiving downlink information of the sub-terminal from a second object; and transmitting the uplink information of the secondary terminal to a second object; The second object is a network side device or a main terminal among Q terminals, the Q terminals support jointly receiving data of a first service, and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1.

[0177] Optionally, the downlink information includes at least one of a TA, a C-RNTI, and resource scheduling information, or the uplink information includes at least one of physical layer control information, MAC layer control information, and HARQ feedback information.

[0178] Alternatively, when the downlink information includes a TA, the downlink information of the secondary terminal is obtained by a contention-based random access procedure, or the downlink information of the secondary terminal is obtained by a non-contention-based random access procedure.

[0179] Optionally, the downlink information further includes a C-RNTI.

[0180] Alternatively, if the downlink information of the sub-terminal is obtained through a contention-based random access procedure, the data transmission device 600 may: The terminal further includes a third sending module for sending sixth information to the network side device after establishing an RRC connection with the network side device, where the sixth information includes identification information of the main terminal.

[0181] Optionally, when the downlink information of the secondary terminal is obtained through a non-contention based random access procedure, the third execution module: receiving first information sent from the main terminal, the first information including a dedicated random access resource of the sub-terminal; Initiating a non-contention based random access procedure using the dedicated random access resource, the non-contention based random access procedure being for obtaining a TA.

[0182] Optionally, the first information further includes a C-RNTI of the secondary terminal.

[0183] Alternatively, the uplink information of the secondary terminal is transmitted to the network side device by the secondary terminal through an uplink dedicated resource corresponding to the secondary terminal; or The uplink information of the sub-terminal is transmitted from the main terminal to the network side device through an uplink dedicated resource corresponding to the main terminal.

[0184] Alternatively, the uplink information of the secondary terminal is transmitted at a time domain resource position corresponding to the secondary terminal, or the uplink information of the secondary terminal is carried on second information, and the second information includes the uplink information of the secondary terminal and identification information of the secondary terminal.

[0185] Optionally, when the downlink information includes resource scheduling information, the second object is the network side device or the main terminal.

[0186] Optionally, when the second object is the main terminal, the resource scheduling information of the sub-terminal is determined by one of the following: an indication by the downlink information, an allocation by the main terminal, and a negotiation by some or all of the Q terminals.

[0187] Alternatively, if the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, the data transmission device 600 may: a third receiving module for receiving seventh information sent from a seventh terminal, the seventh information indicating that a third semi-static resource of the first sub-terminal is in an idle state; a second transmitting module for transmitting seventh information through the third semi-static resource, the seventh information including identification information of the sub-terminal and data of the sub-terminal; The seventh terminal is any one of the Q terminals other than the sub-terminal.

[0188] Alternatively, if the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, the data transmission device 600 may: The terminal further includes a fourth transmitting module for transmitting eighth information to an eighth terminal, the eighth information indicating that a fourth semi-static resource of the secondary terminal is in an idle state, and the eighth terminal is any one of the Q terminals other than the secondary terminal.

[0189] The data transmission device 600 provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 3 and achieve the same technical effects, and detailed descriptions will be omitted here to avoid duplication.

[0190] FIG. 7 is a structural diagram of a data transmission device provided in an embodiment of the present application.

[0191] As shown in FIG. 7, a data transmission device 700 includes: a fourth execution module 701 for executing a fourth operation, the fourth operation comprising: transmitting downlink information of the fourth object to the third object; receiving uplink information of the fourth object transmitted from the third object; The third object includes a main terminal among Q terminals, and the Q terminals support joint reception of data of a first service, and the fourth object includes some or all of the Q terminals, where Q is an integer greater than 1.

[0192] Optionally, the downlink information includes at least one of a TA, a C-RNTI, and resource scheduling information, or the uplink information includes at least one of physical layer control information, MAC layer control information, and HARQ feedback information.

[0193] Optionally, when the downlink information includes a TA, the downlink information of the fourth object is: Downlink information of a ninth terminal including at least one sub-terminal of the fourth object is transmitted by a contention-based random access procedure; and downlink information of a tenth terminal including at least one sub-terminal of the fourth object is transmitted by a non-contention based random access procedure.

[0194] Optionally, the downlink information further includes a C-RNTI.

[0195] Alternatively, when the downlink information of the ninth terminal is transmitted by a contention-based random access procedure, the data transmission device 700 may: a fourth receiving module for receiving sixth information transmitted from the ninth terminal after establishing an RRC connection with the ninth terminal, the sixth information including identification information of the main terminal; and a first construction module for constructing a first architecture including the main terminal and the ninth terminal based on the sixth information.

[0196] Alternatively, when the downlink information of the tenth terminal is transmitted by a non-contention based random access procedure, the data transmission device 700 may: a fifth sending module for sending first information, including a dedicated random access resource of the tenth terminal, to the primary terminal after establishing an RRC connection with the primary terminal; and a second construction module for constructing a first architecture including the main terminal and the tenth terminal after establishing an RRC connection with the tenth terminal.

[0197] Optionally, the first information further includes a C-RNTI of the tenth terminal.

[0198] Optionally, the data transmission device 700: a first allocation module for the network side device to allocate Q first uplink dedicated resources to the Q terminals, the Q first uplink dedicated resources corresponding to the Q terminals respectively; a second allocation module for allocating second uplink dedicated resources to a primary terminal of the Q terminals, the second uplink dedicated resources corresponding to the Q terminals.

[0199] Optionally, when the third object is the main terminal, the fourth execution module 701: receiving uplink information of a fourth object transmitted from the primary terminal at a second time-frequency resource location, where the second time-frequency resource location corresponds to the fourth object; receiving second information transmitted from the main terminal, wherein the second information includes at least one piece of uplink information and identification information of a terminal corresponding to the at least one piece of uplink information.

[0200] Alternatively, if the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, the data transmission device 700: a fifth receiving module for receiving ninth information through a fifth semi-static resource, the ninth information including identification information of an eleventh terminal and data of the eleventh terminal; The fifth semi-static resource is a semi-static resource allocated to a fifth terminal, the fifth terminal being any one of the Q terminals other than the eleventh terminal, and the eleventh terminal being any one of the Q terminals.

[0201] The data transmission device 700 provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 4 and achieve the same technical effects, and detailed descriptions will be omitted here to avoid duplication.

[0202] The data transmission device in the embodiments of the present application may be a device, a device having an operating system, or electronic equipment, or may be a component, integrated circuit, or chip in the device or electronic equipment. The device or electronic equipment may be a portable terminal or a non-portable terminal. Exemplarily, the portable terminal may include, but is not limited to, the types of terminals 11 listed above. The non-portable terminal may be, for example, a server, a network-attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine (ATM), a kiosk, etc., and is not specifically limited in the embodiments of the present application. The device or electronic equipment may be a network-side device, and the network-side device may include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0203] Optionally, as shown in Fig. 8, an embodiment of the present application further provides a communication device 800, which includes a processor 801, a memory 802, and a program or command stored in the memory 802 and executable on the processor 801. For example, if the communication device 800 is a main terminal, the program or command is executed by the processor 801 to realize the processes of the method embodiment of Fig. 2 and achieve the same technical effects. If the communication device 800 is a secondary terminal, the program or command is executed by the processor 801 to realize the processes of the method embodiment of Fig. 3 and achieve the same technical effects. If the communication device 800 is a network-side device, the program or command is executed by the processor 801 to realize the processes of the method embodiment of Fig. 4 and achieve the same technical effects. To avoid repetition, detailed descriptions will be omitted here.

[0204] An embodiment of the present application further provides a terminal including a processor and a communication interface.

[0205] If the terminal is a main terminal, the communication interface is is used to perform a first operation, the first operation comprising: receiving downlink information of a first object transmitted from a network side device; sending the uplink information of the first object to the network side device; The first object includes some or all of Q terminals, and the Q terminals support jointly receiving data of a first service, and the main terminal is a main terminal among the Q terminals, where Q is an integer greater than 1.

[0206] If the terminal is a sub-terminal, the communication interface: is used to perform a third operation, the third operation comprising: receiving downlink information of the sub-terminal from a second object; and transmitting the uplink information of the secondary terminal to a second object; The second object is a network side device or a main terminal among Q terminals, the Q terminals support jointly receiving data of a first service, and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1.

[0207] This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and the implementation processes and realization forms of the above-mentioned method embodiments can be applied to this terminal embodiment, and the same technical effects can be achieved. Specifically, Figure 9 is a schematic diagram of the hardware structure of a terminal that implements the embodiment of this application.

[0208] The terminal 900 includes at least some of the following components, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910.

[0209] Those skilled in the art will understand that the terminal 900 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 910 through a power management system, which may further realize functions such as charge / discharge management and power consumption management. The structure of the terminal shown in Figure 9 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and detailed descriptions thereof will be omitted here.

[0210] It should be understood that in an embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 that processes image data of still or video images captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 9042. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. The other input devices 9072 may include, but are not limited to, a physical keyboard, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a control lever, and detailed descriptions thereof will be omitted here.

[0211] In the embodiment of the present application, the high frequency unit 901 receives downlink data from the network side device, processes the data in the processor 910, and transmits uplink data to the network side device. Typically, the high frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a receiver / transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0212] The memory 909 can be used to store software programs or commands and various data. The memory 909 may primarily include a program or command storage area capable of storing an operating system, an application or command required for at least one function (e.g., audio playback function, image playback function, etc.), and a data storage area. The memory 909 may also include high-speed random access memory and may further include nonvolatile memory. The nonvolatile 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. For example, the nonvolatile memory may include at least one magnetic disk storage device, flash memory device, or other nonvolatile solid-state storage device.

[0213] The processor 910 may include one or more processing units. Optionally, the processor 910 may integrate an application processor that mainly processes an operating system, a user interface, and applications or commands, and a modem processor that mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor does not have to be integrated into the processor 910.

[0214] When the terminal is a main terminal, the high frequency unit 901 is used to perform a first operation, the first operation comprising: receiving downlink information of a first object transmitted from a network side device; sending the uplink information of the first object to the network side device; The first object includes some or all of Q terminals, and the Q terminals support jointly receiving data of a first service, and the main terminal is a main terminal among the Q terminals, where Q is an integer greater than 1.

[0215] In this case, the terminal 900 in this embodiment can implement each process in the method embodiment of FIG. 2 in the embodiment of the present application and achieve the same beneficial effects, and detailed description will be omitted here to avoid duplication.

[0216] When the terminal is a sub-terminal, the high frequency unit 901 is used to perform a third operation, the third operation comprising: receiving downlink information of the sub-terminal from a second object; and transmitting the uplink information of the secondary terminal to a second object; The second object is a network side device or a main terminal among Q terminals, the Q terminals support jointly receiving data of a first service, and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1.

[0217] In this case, the terminal 900 in this embodiment can implement each process in the method embodiment of FIG. 3 in the embodiment of the present application and achieve the same beneficial effects, and detailed description will be omitted here to avoid duplication.

[0218] An embodiment of the present application further provides a network side device, the network side device including a processor and a communication interface, the communication interface including: is used to perform a fourth operation, the fourth operation comprising: transmitting downlink information of the fourth object to the third object; receiving uplink information of the fourth object transmitted from the third object; The third object includes a main terminal among Q terminals, and the Q terminals support joint reception of data of a first service, and the fourth object includes some or all of the Q terminals, where Q is an integer greater than 1.

[0219] The embodiment of the network-side device corresponds to the method embodiment of the network-side device described above, and the implementation processes and realization forms of the method embodiments described above can all be applied to the embodiment of the network-side device, and the same technical effects can be achieved.

[0220] Specifically, an embodiment of the present application further provides a network side device. As shown in Figure 10, the network device 1000 includes an antenna 101, a radio frequency device 102, and a baseband device 103. The antenna 101 is connected to the radio frequency device 102. In the uplink direction, the radio frequency device 102 receives information through the antenna 101 and transmits the received information to the baseband device 103 for processing. In the downlink direction, the baseband device 103 processes the information to be transmitted and transmits it to the radio frequency device 102, and the radio frequency device 102 processes the received information before transmitting it via the antenna 101.

[0221] The above-mentioned frequency band processing device may be in the baseband device 103 , and the method performed by the network side device in the above-mentioned embodiment can be realized in the baseband device 103 , which includes a processor 104 and a memory 105 .

[0222] The baseband device 103 may include, for example, at least one baseband board having multiple chips installed thereon, and as shown in FIG. 10, one of the chips may be, for example, a processor 104 connected to a memory 105 to call a program in the memory 105 to perform the operations of the network equipment shown in the above method embodiments.

[0223] The baseband device 103 may further include a network interface 106 for communicating with the radio frequency device 102, the interface being, for example, a common public radio interface (CPRI).

[0224] Specifically, the network side device in the embodiment of the present application further includes a command or program stored in memory 105 and executable on processor 104, and processor 104 can call the command or program in memory 105 to execute each process in the method embodiment of Figure 4 or execute the method executed by each module shown in Figure 7, and achieve the same technical effect. To avoid duplication, detailed description will be omitted here.

[0225] The embodiments of the present application further provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the processes of the above-mentioned embodiments of the data transmission method are realized and the same technical effects can be achieved. To avoid repetition, detailed descriptions are omitted here. The computer-readable storage medium can be, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, etc.

[0226] The embodiments of the present application further provide a readable storage medium, which may be non-volatile or volatile, and stores a program or command in the readable storage medium. When the program or command is executed by a processor, the processes of the method embodiments of Figure 2, Figure 3 or Figure 4 above are realized, and the same technical effects can be achieved. To avoid repetition, detailed descriptions are omitted here.

[0227] An embodiment of the present application further provides a computer program product, which is stored in a non-transitory storage medium, and which can be executed by at least one processor to realize each process of the method embodiment of Figure 2, Figure 3 or Figure 4 above, and achieve the same technical effects. To avoid repetition, detailed descriptions will be omitted here.

[0228] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, etc.

[0229] An embodiment of the present application further provides a chip, the chip including a processor and a communication interface, the communication interface and the processor are coupled together, and the processor executes programs or commands to realize each process of the method embodiments of Figure 2, Figure 3 or Figure 4 above, and can achieve the same technical effects. To avoid repetition, detailed descriptions are omitted here.

[0230] It should be understood that the chips referred to in the embodiments of this application may also be referred to as system level chips, system chips, chip systems, or system-on-chips, etc.

[0231] It should be noted that, as used herein, the terms "comprise," "consist," or any other variation thereof, are intended to include a non-exclusive inclusion, whereby a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not expressly specified or elements inherent in such process, method, article, or apparatus. Unless otherwise specified, elements qualified by the phrase "comprise a" do not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should also 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 include performing functions substantially simultaneously or in the reverse order, depending on such functionality. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to one example may be combined in other examples.

[0232] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform, and of course, they can also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solutions of the present application can be substantially embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a plurality of commands that cause a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0233] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. The method includes a step of: a main terminal performing a first operation, the first operation including: Sending uplink information of the first object to a network side device; The first object includes some or all of Q terminals, and the Q terminals support jointly receiving data of a first service, and the main terminal is a main terminal among the Q terminals, where Q is an integer greater than 1; The main terminal transmits the uplink information of the first object to the network side device, A main terminal transmits uplink information of a fourth terminal to a network side device at a first time-frequency resource location, the first time-frequency resource location corresponds to the fourth terminal, and the fourth terminal is one of the first objects; A data transmission method, comprising: a main terminal transmitting second information to a network side device, the second information including at least one piece of uplink information, and identification information of a terminal corresponding to the at least one piece of uplink information.

2. The method of claim 1, wherein the first operation further includes receiving downlink information of a first object transmitted from the network side equipment, the downlink information including at least one of a timing advance TA, a cell radio network temporary identifier C-RNTI, and resource scheduling information.

3. The Q terminals include at least one sub-terminal; The method further includes the step of: the main terminal performing a second operation, the second operation including: receiving first downlink information of a first terminal and then transmitting the first downlink information to the first terminal, the first terminal being a sub-terminal of any one of the first objects; The method of claim 1, comprising at least one of: receiving the first uplink information transmitted from a second terminal before transmitting the first uplink information of the second terminal, the second terminal being a sub-terminal of any one of the first objects.

4. The method of claim 1, wherein the uplink information includes at least one of physical layer control information, medium access control (MAC) layer control information, and hybrid automatic repeat request (HARQ) feedback information.

5. When the downlink information includes a TA, receiving first information transmitted from the network side device after the main terminal establishes an RRC connection with the network side device, the first information including a dedicated random access resource of a third terminal; The main terminal further includes a step of transmitting the first information to a third terminal; The third terminal includes at least one sub-terminal among the Q terminals. The method of claim 2 , wherein the first information further includes a C-RNTI of the third terminal.

6. 2. The method according to claim 1, wherein the resource scheduling information of each terminal in the first object is determined by one of an instruction by the downlink information of the first object transmitted from the network side device, an allocation by the main terminal, and a negotiation by the first object.

7. When the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the main terminal performs a first operation, receiving third information by the main terminal transmitted from a fifth terminal, the third information indicating that a first semi-static resource of the fifth terminal is in an idle state; The method further includes the step of: the main terminal transmitting fourth information through the first semi-static resource, the fourth information including identification information of the main terminal and data of the main terminal; The method of claim 2 , wherein the fifth terminal is a sub-terminal of any one of the Q terminals.

8. When the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the main terminal performs a first operation, The method further includes the step of: transmitting fifth information from the main terminal to a sixth terminal, the fifth information indicating that a second semi-static resource of the main terminal is in an idle state; The method of claim 2 , wherein the sixth terminal comprises at least one sub-terminal of the Q terminals.

9. The sub-terminal performs a third operation, the third operation including: Sending uplink information of the secondary terminal to a second object; The second object is a network side device or a main terminal among Q terminals, the Q terminals support jointly receiving data of a first service, and the sub-terminal is any one of the Q terminals, where Q is an integer greater than 1; The uplink information of the secondary terminal is sent by the main terminal to the network side device at a time domain resource position corresponding to the secondary terminal; or A data transmission method, in which the uplink information of the sub-terminal is transmitted by the main terminal to the network side device via second information, and the second information includes the uplink information of the sub-terminal and identification information of the sub-terminal.

10. The method of claim 9, wherein the third operation further includes receiving downlink information of the secondary terminal from the second object, the downlink information including at least one of a TA, a C-RNTI, and resource scheduling information.

11. 10. The method of claim 9, wherein the uplink information includes at least one of physical layer control information, MAC layer control information, and HARQ feedback information.

12. When the downlink information includes a TA, the downlink information of the secondary terminal is obtained by a contention-based random access procedure, or the downlink information of the secondary terminal is obtained by a non-contention-based random access procedure. The method of claim 10, wherein the downlink information further comprises a C-RNTI.

13. When the downlink information of the secondary terminal is obtained through a contention-based random access procedure, The method according to claim 12, further comprising: transmitting sixth information to the network side device after the secondary terminal establishes an RRC connection with the network side device, the sixth information including identification information of the primary terminal.

14. When the downlink information of the secondary terminal is obtained by a non-contention based random access procedure, the secondary terminal receives the downlink information of the secondary terminal from a second object, The sub-terminal receives first information transmitted from the main terminal, the first information including a dedicated random access resource of the sub-terminal; The sub-terminal initiates a non-contention based random access procedure using the dedicated random access resource, the non-contention based random access procedure being for obtaining a TA. The method of claim 12, wherein the first information further includes a C-RNTI of the secondary terminal.

15. The uplink information of the sub-terminal is transmitted to the network side device by the uplink dedicated resource corresponding to the sub-terminal in the sub-terminal; Or, The method according to claim 9 , wherein the uplink information of the secondary terminal is transmitted to the network side equipment by the primary terminal through an uplink dedicated resource corresponding to the primary terminal.

16. 10. The method of claim 9, wherein, when the second object is the main terminal, the resource scheduling information of the sub-terminal is determined by one of: an indication by the downlink information of the sub-terminal received by the second object; an allocation by the main terminal; and a negotiation by some or all of the Q terminals.

17. When the downlink information includes resource scheduling information, and the resource scheduling information is semi-static resource scheduling information, after the secondary terminal performs a third operation, receiving seventh information by the secondary terminal transmitted from a seventh terminal, the seventh information indicating that a third semi-static resource of the secondary terminal is in an idle state; The sub-terminal transmits seventh information through the third semi-static resource, the seventh information including identification information of the sub-terminal and data of the sub-terminal; The seventh terminal is any one of the Q terminals other than the sub-terminal. Or, The method according to claim 10, further comprising a step of transmitting eighth information from the secondary terminal to an eighth terminal, the eighth information indicating that a fourth semi-static resource of the secondary terminal is in an idle state, the eighth terminal being any one of the Q terminals other than the secondary terminal.

18. The network side device performs a fourth operation, the fourth operation comprising: receiving uplink information of a fourth object transmitted from a third object; The third object includes a main terminal among Q terminals, and the Q terminals support jointly receiving data of a first service; the fourth object includes some or all of the Q terminals, where Q is an integer greater than 1; When the third object is the main terminal, the network side device receives uplink information of a fourth object transmitted from the third object, A network side device receives uplink information of a fourth object transmitted from the main terminal at a second time-frequency resource location, the second time-frequency resource location corresponding to the fourth object; A data transmission method, comprising: a network side device receiving second information transmitted from the main terminal, the second information including at least one uplink information and identification information of a terminal corresponding to the at least one uplink information.

19. A communications device comprising a processor, a memory, and a program or command stored in the memory and executable on the processor, wherein, when the program or command is executed by the processor, steps of a data transmission method as claimed in any one of claims 1 to 8 are realized, or steps of a data transmission method as claimed in any one of claims 9 to 17 are realized, or steps of a data transmission method as claimed in claim 18 are realized.

20. A readable storage medium having a program or command stored thereon, which, when executed by a processor, causes the steps of the data transmission method according to any one of claims 1 to 8 to be realized, or the steps of the data transmission method according to any one of claims 9 to 17 to be realized, or the steps of the data transmission method according to claim 18 to be realized.

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