WO2020062105A1

WO2020062105A1 - Communication method and apparatus

Info

Publication number: WO2020062105A1
Application number: PCT/CN2018/108491
Authority: WO
Inventors: 米翔; 铁晓磊; 苏俞婉; 金哲
Original assignee: 华为技术有限公司
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2020-04-02
Also published as: CN112703791B; CN112703791A

Abstract

A communication method and apparatus. The method comprises: a terminal device determines a first resource; when it is determined that uplink data transmission is performed by means of a second resource, the terminal device determines first instruction information for instructing the terminal device to perform uplink data transmission by means of the second resource, and sends the first instruction information to a network device by means of the first resource; and the terminal device performs uplink data transmission by means of the second resource.

Description

Communication method and device

Technical field

The present application relates to the field of wireless communication technologies, and in particular, to a communication method and device.

Background technique

Narrowband Internet of Things (NB-IoT) is a network for machine type communication (MTC), and it is an important type of network in the future communication field. The Internet of Things communication is mainly used in smart meter reading, medical detection monitoring, logistics detection, industrial detection monitoring, vehicle networking, smart communities, and wearable device communication. In NB-IoT, when a terminal device has uplink data to transmit, the terminal device needs to request uplink resources from the base station; then the base station issues uplink transmission scheduling information according to the request of the terminal device; the terminal device schedules according to the uplink transmission scheduling information The uplink resource is used to transmit uplink data. Finally, the base station sends downlink control information (downlink control information) in a corresponding format according to the demodulation of the uplink data. The format of DCI includes DCI format N0 and DCI format N1.

Currently, research is being conducted to increase uplink scheduling-free transmission technology in NB-IoT. The uplink scheduling-free transmission can also be referred to as grant-free transmission or UpLink transmission pre-configured resources or transmission pre-configured UL resources. These are referred to as uplink free scheduling transmission. In the uplink scheduling-free transmission technology, the base station pre-configures uplink scheduling-free resources for the terminal device. When the terminal device has uplink data to transmit, the terminal device directly performs uplink data on the pre-configured uplink scheduling-free resource in accordance with a predetermined transmission method Transmission; the base station sends feedback information based on the demodulation of uplink data. It can be seen from the above process that, for the uplink scheduling-free transmission technology, the terminal device does not need to apply for uplink transmission resources to the base station, and does not need to wait for the base station to issue uplink transmission scheduling information, which reduces the signaling process, reduces power consumption delay, and reduces Advantages such as signaling overhead.

However, in the uplink scheduling-free transmission technology, after the base station configures uplink terminal scheduling-free resources for the terminal device, the base station does not know when the terminal device will perform uplink scheduling-free transmission through the uplink scheduling-free resource. For this reason, the base station needs to perform operations such as blind detection and blind decoding on each uplink scheduling-free resource, which results in high complexity of the blind detection of the base station and wastes power consumption of the base station.

To sum up, in the uplink scheduling-free transmission technology, how to reduce the blind detection complexity of the base station is an urgent problem to be solved.

Summary of the Invention

The purpose of the embodiments of the present application is to provide a communication method and device, which are used to solve the problem of how to reduce the blind detection complexity of network equipment in the uplink scheduling-free transmission technology.

An embodiment of the present application provides a communication method, including: a terminal device determining a first resource; when the terminal device determines to perform uplink data transmission through a second resource, determining that the terminal device instructs the terminal device to perform data transmission through the second resource First indication information for uplink data transmission, and sending the first indication information to a network device through the first resource; and the terminal device for uplink data transmission through the second resource.

Through the above method, before transmitting the uplink data, the terminal device instructs the terminal device to transmit uplink data in the second resource by sending the first instruction information, so that the network device can determine that the second resource includes the uplink data of the terminal device. There is no need to perform blind detection in the second resource, thereby reducing the complexity of blind detection of the network device, reducing the power consumption of the network device, and improving data transmission efficiency.

In a possible design, the determining, by the terminal device, the first indication information includes: receiving, by the terminal device, first information sent by the network device, where the first information is used to configure the first information from the network device. The first indication information is indicated in at least one indication information; the terminal device determines the first indication information from the at least one indication information according to the first information.

In a possible design, the determining, by the terminal device, the first instruction information includes that the terminal device selects one piece of instruction information from at least one piece of instruction information configured by the network device as the first instruction information.

In a possible design, before the terminal device performs uplink data transmission through the second resource, the method further includes: the terminal device receives second resource configuration information sent by a network device; the second resource configuration The information indicates at least one resource for uplink data transmission, and each resource of the at least one resource is associated with one indication information; the terminal device associates the resource of the at least one resource associated with the first indication information Determined as the second resource.

Through the above method, the second resource is associated with the first instruction information. The network device only needs to indicate the first instruction information, and the terminal device can determine the second resource associated with the first instruction information. Accordingly, the network device receives the The first indication information can determine the location of the second resource associated with it.

In a possible design, before the terminal device performs uplink data transmission through the second resource, the method further includes: the terminal device receives second resource configuration information sent by a network device; the second resource configuration The information indicates at least one resource used for uplink data transmission; the terminal device receives second information sent by the network device, and the second information is used to indicate the second resource from the at least one resource; the The terminal device determines the second resource from the at least one resource according to the second information.

In a possible design, before the terminal device performs uplink data transmission through the second resource, the method further includes: the terminal device receives second resource configuration information sent by a network device; the second resource configuration The information indicates at least one resource for uplink data transmission; the terminal device selects one resource from the at least one resource as the second resource.

In a possible design, each resource of the at least one resource is associated with a piece of indication information, and the determining, by the terminal device, the first indication information includes: the terminal device will be associated with the second resource. The instruction information is used as the first instruction information.

Through the above method, the second resource is associated with the first indication information. The network device only needs to indicate the second resource, and the terminal device can determine the first indication information associated with the second resource. Accordingly, the network device receives the first indication information. As soon as the information is indicated, the location of the second resource associated with it can be determined.

In a possible design, the terminal device selecting one resource from the at least one resource as the second resource includes: the terminal device selecting one of the at least one resource and the uplink data A resource corresponding to a required transmission block size TBS is used as the second resource; or, the terminal device selects, from the at least one resource, a resource corresponding to the RSRP measured by the terminal device as the second resource. .

In a possible design, each of the at least one resource is associated with a pre-configured resource; the determining, by the terminal device, a first resource includes: The configured resource is used as the first resource.

Through the above method, the second resource is associated with the first resource. The terminal device only needs to determine the second resource, and the terminal device can determine the first resource associated with the second resource. Accordingly, the network device is in the first resource. After receiving the first indication information, the location of the second resource associated with the first resource can be determined.

In a possible design, determining the first resource by the terminal device includes: receiving, by the terminal device, first resource configuration information sent by a network device; the first resource configuration information indicating the first resource; the The terminal device determines the first resource according to the first resource configuration information.

In a possible design, determining the first resource by the terminal device includes: the terminal device will be located before a first reference position, and a time interval between an end position and the first reference position is a first preset For resources corresponding to N time units in a time interval, as the first resource, N is an integer greater than 0; the first reference position is a start position of a resource with an earliest start position among the at least one resource; Alternatively, the terminal device uses the resources corresponding to N time units with the first reference position as a starting position as the first resource, and N is an integer greater than 0.

Through the above method, at least one resource configured by the network device can be associated with the same first resource, thereby improving resource utilization. At the same time, the location of the first resource can be agreed in advance between the network device and the terminal device, so that it is not necessary to indicate the first resource through signaling, and the signaling overhead is reduced.

In a possible design, determining the first resource by the terminal device includes: receiving, by the terminal device, third information sent by a network device, where the third information indicates a second preset time interval; A resource that is located before the second reference position and the time interval between the end position and the second reference position corresponds to N time units of the second preset time interval. As the first resource, N is greater than An integer of 0; the second reference position is a starting position of the second resource.

Through the above method, the flexibility of the first instruction information can be improved, and the first resource that sends the first instruction information can be prevented from colliding with the second resource where uplink data occurs, thereby improving system efficiency.

In a possible design, the first indication information is one of the following or a combination of at least one of the following:

ZC sequence; Gold sequence; M sequence; Demodulation reference signal DMRS sequence; Preamble.

According to the above method, when the first indication information is the above sequence, the duration of transmission is small and shorter than the duration of uplink data in the second resource. Therefore, the complexity of blind detection of the first indication information by the network device is less than that of the blind detection of the second resource The complexity of the uplink data of the uplink data can be reduced by the first indication information.

In a possible design, the first indication information further indicates at least one of the following information: an identifier of the terminal device; an MCS of the uplink data; a TBS of the uplink data; and a number of repetitions of the uplink data .

In a second aspect, an embodiment of the present application provides a communication device, where the communication device includes a processor, and the processor is coupled to a memory, where: the memory is used to store instructions; the processor is used to execute the instructions stored in the memory to execute The first aspect or the method in any of the possible designs of the first aspect. Optionally, the communication device may further include the memory. Optionally, the communication device may further include a transceiver for supporting the communication device to perform information transmission and / or reception in the foregoing method. Optionally, the communication device may be a terminal device or a device in the terminal device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and / or Discrete devices.

According to a third aspect, an embodiment of the present application provides a communication apparatus for implementing the foregoing first aspect or any one of the methods in the first aspect, including corresponding function modules, such as a processing unit, a transceiver unit, and the like, which are respectively used for Implement the steps in the above method.

According to a fourth aspect, a communication method includes: when a network device receives, in a first resource, first instruction information sent by a terminal device and used to instruct the terminal device to perform uplink data transmission through a second resource, the network The device determines that the terminal device performs uplink data transmission through the second resource according to the first instruction information; the network device receives the uplink data sent by the terminal device in the second resource, and demodulates the received data Uplink data.

Through the above method, the network device can determine that the terminal device transmits uplink data in the second resource after receiving the first indication information, so that blind detection in the second resource is not required, thereby reducing the complexity of blind detection of the network device and the network. The power consumption of the device improves the efficiency of data transmission.

In a possible design, before the network device receives the first indication information sent by the terminal device in the first resource, the method further includes: the network device sends the first resource configuration information to the terminal device; The first resource configuration information indicates the first resource.

In a possible design, before the network device receives the first indication information sent by the terminal device in the first resource, the method further includes: the network device sends the second resource configuration information to the terminal device; The second resource configuration information indicates at least one resource used for uplink data transmission.

In a possible design, each of the at least one resource is associated with one indication information.

In a possible design, before the network device receives the first indication information sent by the terminal device in the first resource, the method further includes: the network device sends the first information to the terminal device, and the The first information is used to indicate the first indication information from at least one indication information pre-configured by the network device.

In a possible design, before the network device receives the first instruction information sent by the terminal device in the first resource, the method further includes: the network device sends the second information to the terminal device, and the The second information is used to indicate the second resource from the at least one resource.

In a possible design, the second information further indicates a resource type of the second resource; the resource type includes an exclusive resource and a shared resource; and the exclusive resource is a resource on the network device. Within the cell, a resource exclusive to a terminal device is allocated, and the shared resource is a resource allocated to at least two terminal devices in a cell of the network device.

In a possible design, the first indication information is any one of the following or a combination of at least one of the following:

ZC sequence; Gold sequence; M sequence; Demodulation reference signal DMRS sequence; Preamble preamble.

In a possible design, the first indication information may further indicate at least one of the following information:

The identifier of the terminal device; the MCS of the uplink data; the TBS of the uplink data; and the number of repetitions of the uplink data.

According to a fifth aspect, an embodiment of the present application provides a communication device, where the communication device includes a processor, and the processor is coupled to a memory, where the memory is used to store instructions; the processor is configured to execute the instructions stored in the memory to execute The fourth aspect or the method in any of the possible designs of the fourth aspect. Optionally, the communication device may further include the memory. Optionally, the communication device may further include a transceiver for supporting the communication device to perform information transmission and / or reception in the foregoing method. Optionally, the communication device may be a network device or a device in the network device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and / or Discrete devices.

According to a sixth aspect, an embodiment of the present application provides a communication device, which is used to implement the fourth aspect or any one of the methods in the fourth aspect, and includes a corresponding functional module, for example, including a processing unit, a transceiver unit, and the like, respectively Implement the steps in the above method.

An embodiment of the present application provides a communication method, including: a network device determines fourth information, where the fourth information is used to indicate whether a terminal device needs to send fifth information before sending uplink data in a scheduling-free resource, and the fifth information The information is used to indicate that uplink data is sent in the scheduling-free resource; the network device sends fourth information to the terminal device.

In a possible design, the scheduling-free resource is a resource configured by the network device for the terminal device to send uplink data.

In a possible design, before the network device determines the fourth information, the method further includes: the network device determines that a coverage condition of the terminal device is greater than a preset threshold.

Through the above method, when the network device determines that the coverage condition of the terminal device is greater than a preset threshold, it can be determined that the terminal device is in good coverage, thereby indicating that the terminal device does not send the fifth information, which reduces the power consumption of the terminal device, Resource overhead reduces the complexity of blind detection of network equipment.

In a possible design, the coverage condition is any of the following: coverage level; RSRP.

An embodiment of the present application provides a communication method, including: a terminal device receiving fourth information sent by a network device, where the fourth information is used to indicate whether the terminal device needs to send a fifth message before sending uplink data in a scheduling-free resource; Information, the fifth information is used to instruct the terminal device to send uplink data in the scheduling-free resource; if the terminal device determines that the fifth information does not need to be sent according to the fourth information, it sends the uplink data Before the data, the fifth information is not transmitted.

Through the above method, the terminal device may not send the fifth information when receiving the fourth information sent by the network device, which not only reduces the power consumption of the terminal device, the network resource overhead, but also reduces the complexity of the blind detection of the network device.

An embodiment of the present application provides a communication method, including: if the terminal device sends uplink data through the scheduling-free resources in each period of the periodic scheduling-free resources, before sending uplink data, And sending the fifth information, where the fifth information is used to instruct sending uplink data in a scheduling-free resource.

Through the above method, the terminal device may not send the fifth information when periodically sending uplink data, which not only reduces the power consumption of the terminal device, the network resource overhead, but also reduces the complexity of blind detection of the network device.

An embodiment of the present application provides a computer-readable storage medium, where the computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the communication device is caused to execute any one of the foregoing possible Methods in design.

An embodiment of the present application provides a computer program product. When a computer reads and executes the computer program product, the communication device is caused to execute a method in any of the foregoing possible designs.

An embodiment of the present application provides a chip that is connected to a memory and is used to read and execute a software program stored in the memory to implement the method in any one of the foregoing possible designs.

An embodiment of the present application provides a communication device, including a processor, which is configured to be coupled to a memory, and read and execute instructions in the memory to implement any one of the foregoing aspects or any of the possible aspects. Methods in design.

An embodiment of the present application provides a communication system including the communication device in the second aspect and the communication device in the fifth aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of a communication system applicable to a communication method according to an embodiment of the present application;

2 is a schematic flowchart of a communication method according to an embodiment of the present application;

FIG. 3 is a schematic diagram of resource division according to an embodiment of the present application; FIG.

4 is a schematic diagram of resource association according to an embodiment of the present application;

FIG. 5 is a schematic diagram of resource association according to an embodiment of the present application; FIG.

FIG. 6 is a schematic diagram of resource association according to an embodiment of the present application; FIG.

7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.

detailed description

The embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

The embodiments of the present application can be applied to various mobile communication systems, such as: a new wireless (NR) system, a global mobile communication (GSM) system, and a code division multiple access (CDMA) system. ) System, wideband code division multiple access (WCDMA) system, long term evolution (LTE) system, advanced long term evolution (LTE-A) system, and other communication systems, Specifically, there is no limitation here.

In order to facilitate understanding of the embodiments of the present application, a communication system shown in FIG. 1 is taken as an example to describe in detail a communication system applicable to the embodiments of the present application. FIG. 1 is a schematic diagram of a communication system applicable to a communication method according to an embodiment of the present application. As shown in FIG. 1, the network equipment and UE1 to UE6 form a communication system. In this communication system, UE1 to UE6 can send uplink data to the network equipment, and the network equipment can also send downlink data to UE1 to UE6. In addition, UE4 to UE6 can also form a communication system. In this communication system, the network device can send downlink data of UE4 and UE6 to UE5, and UE5 forwards the data to UE4 and UE6.

Specifically, the terminal device in the embodiment of the present application is a device having a wireless transmitting / receiving function or a chip that can be provided in the device in order to provide voice and / or data connectivity to a user. The terminal device can communicate with one or more core networks via a radio access network (RAN). The terminal device may be a mobile phone, a tablet, a computer with a wireless transmitting and receiving function, a personal digital assistant (PDA), a virtual reality (VR) terminal, or an augmented reality (augmented reality). AR) terminal, wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation Wireless terminals in transportation, wireless terminals in smart cities, wireless terminals in smart homes, and the like. The embodiment of the present application does not limit the application scenario. In the present application, the foregoing terminal device and chips that can be disposed in the foregoing terminal device are collectively referred to as a terminal device. The terminal equipment in the embodiments of the present application may also be referred to as user equipment (UE), user terminal (user terminal), access terminal (access terminal), user unit, user station, mobile station (mobile station), A mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent, or a user device.

A network device is a device with a wireless transceiver function or a chip that can be set on the device. The network device can be used to convert the received air frames and IP packets to each other as a terminal device and the rest of the access network. The router can also be used to coordinate the management of the attributes of the air interface. The equipment includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC) Base station, base transceiver station (BTS), home base station (e.g., home NodeB, or home Node B, HNB), baseband unit (BBU), wireless fidelity (WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TRP or transmission point, TP), etc., can also be gNB or transmission in 5G (NR) system Point (TRP or TP), one or a group of base stations (including multiple antenna panels) in 5G systems, antenna panels, etc.

The network architecture and service scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those of ordinary skill in the art may know that with the network The evolution of the architecture and the emergence of new business scenarios. The technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

Some scenarios in the embodiments of the present application are described by using a scenario of an NB-IoT network in a wireless communication network as an example. It should be noted that the solutions in the embodiments of the present application can also be applied to other wireless communication networks, and the corresponding names can also be Substitute the names of corresponding functions in other wireless communication networks.

With reference to the foregoing description, as shown in FIG. 2, a schematic flowchart of a communication method according to an embodiment of the present application is shown. Referring to Figure 2, the method includes:

Step 201: The terminal device determines a first resource.

Step 202: When the terminal device determines to perform uplink data transmission through the second resource, determine the first instruction information for instructing the terminal device to perform uplink data transmission through the second resource, and send the first device to the network through the first resource. The device sends the first instruction information.

It should be noted that the second resource is a resource pre-configured by the network device. Before the terminal device performs uplink data transmission in the second resource, it does not need to request the network device to schedule the second resource for it. The application embodiment is not limited thereto, and details are not described herein again.

The first resource and the second resource may be on the same carrier or on different carriers.

The number of time units included in the second resource may be greater than, equal to, or less than the number of time units included in the first resource. The time unit may refer to a single-carrier frequency-division multiple access (SC-FDMA) symbol or slot, a resource unit (RU), or a number of repetitions.

Step 203: The terminal device performs uplink data transmission through the second resource.

Step 204: When the network device receives, in the first resource, the first instruction information sent by the terminal device and used to instruct the terminal device to perform uplink data transmission through the second resource, the network device according to the first instruction information. It is determined that the terminal device performs uplink data transmission through the second resource.

Step 205: The network device receives the uplink data sent by the terminal device in the second resource, and demodulates the received uplink data.

In the above method flow, before transmitting the uplink data, the terminal device instructs the terminal device to perform uplink data transmission in the second resource by sending the first instruction information. Because the second resource is a scheduling-free resource pre-configured by the network device, the network device receives the first instruction information, and the network device determines whether the terminal device transmits uplink data in the second resource, thereby reducing the complexity of blind detection of the network device and the network. The power consumption of the device improves the efficiency of data transmission.

In the embodiment of the present application, there may be multiple scenarios whether the terminal device sends the first indication information. In the first possible scenario, the terminal device instructs the terminal device to send uplink data in the second resource only by sending the first instruction information before performing uplink data transmission through the second resource; accordingly, the terminal device When it is not necessary to perform uplink data transmission through the second resource, the first indication information is not sent.

In a second possible scenario, when the terminal device determines that it is not necessary to perform uplink data transmission through the second resource, it sends the first instruction information to instruct the terminal device not to perform uplink data transmission through the second resource. Correspondingly, when the terminal device determines that uplink data transmission needs to be performed through the second resource, it does not send the first instruction information, but directly performs uplink data transmission.

In a third possible scenario, the terminal device sends the first indication information regardless of whether uplink data transmission is performed through the second resource. Specifically, when a terminal device needs to perform uplink data transmission through the second resource, it sends the first instruction information to instruct the terminal device to perform uplink data transmission through the second resource; accordingly, the terminal device does not need to pass When the second resource performs uplink data transmission, sending the first instruction information instructs the terminal device not to perform uplink data transmission through the second resource.

In the embodiment of the present application, the first indication information may be configured according to carrier granularity, that is, one indication information is configured for each carrier. At this time, the first indication information is on carrier 1 and the second indication information is on carrier 2. An indication information; it can also be configured according to the coverage level granularity, that is, each coverage level is configured with an indication information, for example, NB-IoT has at most 3 coverage enhancement levels (coverage enhancement levels) 0, coverage enhancement level 1, coverage enhancement level 2), different first indication information can be configured for different coverage enhancement levels.

In the embodiment of the present application, the first indication information may be any one of the following or a combination of at least one of the following:

ZC (Zadoff-Chu) sequence; Gold sequence; M sequence; demodulation reference signal (DMRS) sequence; preamble.

For example, when the first indication information is a DMRS sequence, if the first resource includes L time units, the DMRS sequence may fill the L time units of the first resource in a repeated manner. The time unit may refer to a slot (slot) or a resource unit (RU) or a number of repetitions.

For example, when the first indication information is a preamble, in the current NB-IoT system, there may be multiple available preambles, and these preambles are divided into 2 or 3 orthogonal sets. If it is divided into 2 orthogonal sets, that is, when divided into

sets

1 and 2, the preamble in set 1 is used for random access, and the preamble in set 2 is used as the first indication information; it is divided into 3 orthogonal sets. , That is, when it is divided into set 1, set 2, and set 3: the preamble in set 1 is used for random access, the preamble in set 2 is used as the first indication information, and the preamble in set 3 is used for data early Transmission (early data transmission) (EDT).

Of course, the above is only an example, and the first indication information may also exist in other forms, which are not illustrated here one by one.

In the embodiment of the present application, the first indication information may further indicate at least one of the following information:

An identifier of the terminal device; a modulation and coding scheme (MCS) of the uplink data; a transport block size (TBS) of the uplink data; and a number of repetitions of the uplink data.

By indicating the identification of the terminal device, the network device can quickly determine the terminal device transmitting the uplink data, thereby reducing the complexity of blind detection of the network device and improving the detection efficiency of the uplink data. By indicating the MCS of the uplink data, the network device can directly determine the MCS of the uplink data, thereby reducing the complexity of blind detection of the network device and improving the demodulation efficiency of the uplink data. By indicating the TBS of the uplink data, the network device can determine the size of the uplink data transmitted by the terminal device, thereby reducing the complexity of the blind detection of the network device and improving the detection efficiency of the uplink data. By indicating the number of repetitions of uplink data, the complexity of blind detection of network equipment can be reduced, and the detection efficiency of uplink data by network equipment can be improved.

In the embodiment of the present application, the terminal device determines that there may be multiple implementation manners for the first indication information, the first resource, and the second resource, which are respectively described below.

It should be noted that, in the embodiment of the present application, the order in which the terminal device determines the first resource, the first indication information, and the second resource is not limited, and details are not described herein again.

In the embodiment of the present application, the terminal device may determine the first indication information according to any one of the following manners.

Manner 1: The network device sends first information, and the first information is used to indicate the first instruction information from at least one instruction information configured by the network device.

The terminal device may determine the first instruction information from at least one instruction information configured by the network device according to the first information.

How the network device configures the at least one indication information is not limited in this embodiment of the present application, and details are not described herein again.

Manner 2: The terminal device selects one piece of instruction information from at least one piece of instruction information configured by the network device as the first instruction information.

In the embodiment of the present application, the terminal device may randomly select one of the indication information as the first indication information, or may select the first indication information by other methods, which is not limited in the embodiment of the present application, and is not repeated here.

Method 3: In the embodiment of the present application, the network device may configure at least one resource for the terminal device in advance, and each resource of the at least one resource is associated with one indication information. The second resource used by the terminal device to transmit uplink data is selected from the at least one resource, and the at least one resource is an uplink scheduling-free transmission resource and is used by the terminal device for uplink data transmission.

The terminal device may determine a second resource from the at least one resource, and use the indication information associated with the second resource as the first indication information.

It should be noted that how the terminal device determines the second resource will be described in detail later, and will not be repeated here.

In the embodiment of the present application, the terminal device may determine the second resource according to any one of the following methods.

Manner 1: The terminal device receives second resource configuration information sent by a network device; the second resource configuration information indicates at least one resource used for uplink data transmission;

Receiving, by the terminal device, second information sent by a network device, where the second information is used to indicate the second resource from the at least one resource;

The terminal device determines the second resource from the at least one resource according to the second information.

Further, optionally, the second information may also indicate a resource type of the second resource; the resource type includes a dedicated resource and a shared resource; the exclusive resource is Within the cell of the network device, a resource exclusive to one terminal device is allocated, and the shared resource is a resource shared by at least two terminal devices in the cell of the network device.

In combination with the above description, a shared resource, that is, a network device allocates the resource to multiple terminal devices, and conflicts may occur between terminal devices when sending data. An exclusive resource, that is, a network device allocates the resource to only one terminal device, and no conflict occurs.

The terminal device determines the resource type of the second resource through the second instruction information, and then can determine whether the second resource is allocated to other terminal devices at the same time, and the terminal device can adjust the transmission mode to achieve more efficient transmission. For example, if the resource type of the second resource is a shared resource, conflicts may occur, and the terminal device may choose to send uplink data with a low bit rate and a high number of repetitions to improve the reliability of data transmission; correspondingly, If the resource type of the second resource is an exclusive resource, the terminal device may choose to send the uplink data with a high bit rate and a low number of repetitions to reduce resource overhead and power consumption.

In the embodiment of the present application, when the network device is configured with at least one resource in advance, the at least one resource may be explicitly indicated, or the at least one resource may be implicitly indicated. For example, the network device can indicate a resource and the maximum number of repetitions. The terminal device can split the maximum number of repetitions according to the dichotomy, obtain multiple repetitions after the split, and determine the number of repetitions Corresponding resources. For example, as shown in FIG. 3, the network device indicates resource # 1, and the maximum number of repetitions is 128. According to the dichotomy, 128 can be split into two 64 and four 32; then the resource corresponding to each repetition is determined, that is, the number of multiple transmissions corresponding to resource # 2, resource # 3 is 64; resource # 4, resource The number of multiple transmissions corresponding to # 5, resource # 6, and resource # 7 is 32. Therefore, the network device indicates a total of 7 resources, and each resource corresponds to a repetition number.

It should be noted that, in the embodiment of the present application, if uplink data occupies T resource units (RUs) and the number of repetitions is K, then the second resource includes K * T RUs, and T is an integer greater than or equal to 1. . One RU includes at least one slot in the time domain, and each slot includes seven single-carrier frequency-division multiple access (SC-FDMA) symbols.

In the embodiment of the present application, the second resource configuration information may be sent through system information, or may be sent through radio resource control (radio resource control (RRC) signaling), which is not limited in the embodiment of the present application. Among them, the system information may be a master information block (MIB) or a system information block (SIB).

Manner 2: In the embodiment of the present application, each of the at least one resource indicated by the network device through the second resource configuration information is associated with one indication information, and thus the terminal device may determine the second resource according to the association relationship.

Specifically, the terminal device may first determine the first indication information, and use the resource associated with the first indication information among the at least one resource as the second resource.

For how the terminal device determines the first indication information, refer to the foregoing description, and details are not described herein again.

Manner 3: The terminal device receives second resource configuration information sent by a network device; the second resource configuration information indicates at least one resource used for uplink data transmission. The terminal device selects one resource from the at least one resource as the second resource, and uses the indication information associated with the second resource as the first indication information.

In the embodiment of the present application, the terminal device may randomly select one resource as the second resource, or may select the second resource by other methods.

For example, a correspondence between a transport block size (TBS) required for uplink data and each resource in the at least one resource is established in advance, and the terminal device may select one of the at least one resource and the corresponding resource. The resource corresponding to the TBS required for the uplink data is used as the second resource. For example, each resource in the at least one resource corresponds to a different TBS value range. When TBS is in the first value range, it corresponds to one of the at least one resource. When TBS is in the second value range, Corresponding to another one of the at least one resource, and so on. After the terminal device determines the TBS, determines a value range in which the TBS is located, and then uses a resource corresponding to the value range among the at least one resource as the second resource.

For another example, a correspondence relationship between reference signal receiving power (RSRP) and each resource in the at least one resource is established in advance, and the terminal device selects one of the at least one resource and the terminal device from the at least one resource. A resource corresponding to the measured RSRP is used as the second resource. Correspondingly, each of the at least one resource corresponds to a different RSRP value range. After the terminal device determines the RSRP, determines a value range in which the RSRP is located, and then uses a resource corresponding to the value range among the at least one resource as the second resource.

In the embodiment of the present application, the terminal device may determine the first resource according to any one of the following methods.

Method 1: When there is no association between the first resource and the second resource, the first resource may be indicated by the network device through signaling. For example, the network device may send the first resource configuration information to the terminal device; the first resource configuration The information is used to indicate the first resource. The terminal device can thus determine the first resource according to the first resource configuration information.

Manner 2: When there is an association relationship between the first resource and the second resource, the association relationship between the first resource and the second resource may be established in advance, so that the terminal device may use the pre-configured resources associated with the second resource as all resources. Said the first resource.

In this implementation manner, each of the at least one resource may be associated with the same pre-configured resource. At this time, in this case, regardless of which one of the at least one resource the terminal device selects, it is the same. Sending the first indication information on the first resource of. The indication information used by different terminal devices can be distinguished by a code division multiplexing method.

Through the above method, multiple terminal devices can reuse the same first resource, thereby improving resource utilization. At the same time, the location of the first resource can be agreed in advance between the network device and the terminal device, so that it is not necessary to indicate the first resource through signaling, and the signaling overhead is reduced.

For example, as shown in FIG. 4, at least one resource indicated by the network device through the second resource configuration information is: resource # 1, resource # 2, resource # 3, and resource # 4, which are all the same pre-configured resource Association, that is, the first resources associated with resource # 1, resource # 2, resource # 3, and resource # 4 are the same.

In the embodiment of the present application, when each of the at least one resource is associated with the same pre-configured resource, that is, each resource is associated with the same first resource, in a possible implementation manner, in the time domain, the The first resource may be a resource corresponding to N time units, and a time interval with the first reference position may be a first preset time interval, N is an integer greater than 0; the first reference position is the at least one The start position of the resource with the earliest start position. For example, in conjunction with FIG. 4, the starting position of resource # 1 is the first reference position.

Manner 3: In the time domain, the first resource may be a resource corresponding to N time units with the first reference position as a starting position. For example, as shown in Figure 5. At least one resource indicated by the network device through the second resource configuration information is: resource # 1, resource # 2, resource # 3, and resource # 4, which are all associated with the same pre-configured resource, that is, resource # 1, resource # 2 The first resources associated with resource # 3 and resource # 4 are the same, and the first resource is a resource corresponding to N time units starting from the start position of resource # 1.

In the embodiment of the present application, each of the at least one resource may be associated with a different pre-configured resource. In this case, the network device may notify the terminal device of a time interval, and the terminal device may derive the location of the first resource according to the time interval and the location of the second resource. Specifically, the network device may send third information, where the third information indicates a second preset time interval. The terminal device may use, as the first resource, a resource corresponding to N time units located before the second reference position and a time interval between the end position and the second reference position is the second preset time interval. , N is an integer greater than 0; the second reference position is a starting position of the second resource.

In this case, the network device may associate a different first resource for each second resource, and may ensure that the associated first resource does not conflict with other second resources. Correspondingly, the indication information used by different terminal devices may be distinguished by using a code division multiplexing method and / or a time division multiplexing.

For example, as shown in FIG. 6, the at least one resource indicated by the network device through the second resource configuration information is: resource # 1, resource # 2, resource # 3, and resource # 4, which are respectively different from different pre-configured resources Associated. The time intervals (gap) between resource # 1, resource # 2, resource # 3, and resource # 4 and their associated pre-configured resources are interval 1, interval 2, interval 3, and interval 4, respectively. The network device only needs to indicate interval 1, interval 2, interval 3, and interval 4, and the terminal device can derive corresponding resources.

With the above method, when the first instruction information is used to instruct the terminal device to perform uplink data transmission through the second resource, the terminal device may send the first instruction information according to the determined first resource before the second resource performs uplink data transmission. Correspondingly, when the network device receives the first indication information, it may determine that uplink data of the terminal device exists in the second resource, so as to receive and demodulate the uplink data in the second resource. Because the network device has determined that uplink data of the terminal device exists in the second resource through the first instruction information, the complexity of blind detection of the network device can be reduced, and the efficiency of the network device can be improved. It should be noted that the second resource is pre-configured by the network device, so the network device can determine the location of the second resource, and the network device can also determine the second resource based on the association between the first instruction information and the second resource. No longer.

In the embodiment of the present application, the terminal device may not notify the network device in advance whether to send uplink data, which is described in detail below.

In the first possible scenario, the network device may determine the coverage condition of the terminal device; the coverage condition is the coverage level or RSRP of the terminal device. If the coverage condition of the terminal device is greater than a preset threshold, the network device may determine fourth information and send the fourth information to the terminal device. The fourth information is used to indicate that the terminal device does not need to send fifth information before sending uplink data in the scheduling-free resource, and the fifth information is used to instruct the terminal device to send uplink data in the scheduling-free resource.

It should be noted that the scheduling-free resources are configured by the network device for the terminal device before the terminal device transmits the uplink data. The specific configuration method is not limited in this embodiment of the present application. Before a terminal device sends uplink data in a scheduling-free resource, it does not need to apply to the network device for using the scheduling-free resource. After the network device is configured with the scheduling-free resource, whether the terminal device uses the scheduling-free resource and how to use the scheduling-free resource are not limited by the network device.

For example, if the network device determines that the coverage level of the terminal device is the coverage enhancement level 0, it determines that the terminal device is in good coverage, and the network device may indicate that the terminal device does not need to send the fifth information by sending fourth information.

Since the DMRS energy sent by the terminal device received by the network device is high when the terminal device is in good coverage, the network device can perform activity detection on the terminal device based on the DMRS, or the uplink data sent by the terminal device occupies less RU and repetition. Even if the network device blindly decodes uplink data of the terminal device, the cost is not large, so the terminal device may not need to send the fifth information to the network device at this time.

Correspondingly, the terminal device receives the fourth information sent by the network device. If it is determined according to the fourth information that the fifth information does not need to be sent, the terminal device does not send the first information before sending the uplink data. Five messages. Conversely, if it is determined that the fifth information needs to be sent according to the fourth information, the terminal device sends the fifth information before sending the uplink data.

In a second possible scenario, if the terminal device sends uplink data in the scheduling-free resources of each period of the periodic scheduling-free resources, it does not send the uplink data before sending the uplink data in the scheduling-free resources in each period. The fifth information. The fifth information is used to instruct the terminal device to send uplink data in a scheduling-free resource.

In this scenario, if the uplink data sent by the terminal device is periodically reported data, and each cycle sends uplink data in a periodic scheduling-free resource, when the sending period of the uplink data is the same as the period of the scheduling-free resource Before sending the uplink data, the terminal device may not send the fifth information but directly send the uplink data.

For example, a network device configures a periodic scheduling-free resource for a terminal device. If the terminal device sends uplink data through the scheduling-free resource in each period of the periodic scheduling-free resource, the network device can It is determined that the terminal device will periodically send uplink data. At this time, the terminal device may not need to send the fifth information to the network device before sending the uplink data.

Through the above method, the terminal device may not send the fifth information in the above-mentioned situation, which not only reduces the power consumption of the terminal device, network resource overhead, but also reduces the complexity of blind detection of the network device.

As shown in FIG. 7, a schematic structural diagram of a communication device according to an embodiment of the present application is provided. The communication apparatus may be configured to perform the actions of the terminal device in the foregoing method embodiments. The communication apparatus 700 includes a processing unit 701 and a transceiver unit 702.

A processing unit 701, configured to determine a first resource; when determining to perform uplink data transmission through the second resource, determine first instruction information for instructing the terminal device to perform uplink data transmission through the second resource;

The transceiver unit 702 is configured to send first indication information to a network device through the first resource; and perform uplink data transmission through the second resource.

In a possible design, the transceiver unit 702 is further configured to receive first information sent by the network device, where the first information is used to indicate the at least one indication information configured by the network device. First indication information;

The processing unit 701 is specifically configured to determine the first instruction information from the at least one instruction information according to the first information.

In a possible design, before the transceiver unit 702 performs uplink data transmission through the second resource, it is further configured to:

Receiving second resource configuration information sent by a network device; the second resource configuration information indicates at least one resource for uplink data transmission, and each resource of the at least one resource is associated with one indication information;

The processing unit 701 is further configured to determine, among the at least one resource, a resource associated with the first indication information as the second resource.

In a possible design, before the transceiver unit 702 performs uplink data transmission through the second resource, it is further configured to: receive second resource configuration information sent by a network device; the second resource configuration information indicates that the At least one resource for uplink data transmission; receiving second information sent by a network device, the second information is used to indicate the second resource from the at least one resource;

The processing unit 701 is further configured to determine the second resource from the at least one resource according to the second information.

In a possible design, before the sending and receiving unit 702 performs uplink data transmission through the second resource, it is further configured to receive second resource configuration information sent by a network device; the second resource configuration information indicates that At least one resource for uplink data transmission;

The processing unit 701 is further configured to select one resource from the at least one resource as the second resource.

In a possible design, the processing unit 701 is further configured to:

Selecting, from the at least one resource, a resource corresponding to a transmission block size TBS required for the uplink data as the second resource; or, from the at least one resource, selecting one to measure with the terminal device The resource corresponding to the obtained RSRP is used as the second resource.

In a possible design, the processing unit 701 is configured to determine the first resource, including:

A resource corresponding to N time units that are located before the first reference position and whose time interval between the end position and the first reference position is a first preset time interval. As the first resource, N is An integer greater than 0; the first reference position is a start position of an earliest resource among the at least one resource;

Alternatively, it is used to use the resource corresponding to the N time units starting from the first reference position as the first resource, where N is an integer greater than 0.

In a possible design, the transceiver unit 702 is further configured to:

Receiving third information sent by a network device, where the third information indicates a second preset time interval;

The processing unit 701 is configured to determine the first resource, and includes: being configured to be located before a second reference position, and a time interval between an end position and the second reference position is the second preset time interval For resources corresponding to N time units, as the first resource, N is an integer greater than 0; and the second reference position is a starting position of the second resource.

In a possible design, the first indication information further indicates at least one of the following information:

FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in FIG. 8 may be an implementation manner of a hardware circuit of the communication device shown in FIG. 7. The communication device may be applied to the flowchart shown in FIG. 2 to execute the functions of the terminal device in the foregoing method embodiment. For ease of explanation, FIG. 8 shows only the main components of the communication device. Optionally, the communication device may be a terminal device or a device in the terminal device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and / or Discrete devices. Optionally, the communication device is a terminal device. As shown in FIG. 8, the communication device 800 includes a processor 801, a memory 802, a transceiver 803, an antenna 804, and an input / output device 805. The processor 801 is mainly used to process communication protocols and communication data, and control the entire wireless communication device, execute a software program, and process data of the software program, for example, to support the wireless communication device to execute the methods described in the foregoing method embodiments. Action, etc. The memory 802 is mainly used to store software programs and data. The transceiver 803 is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna 804 is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. The input / output device 805, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.

A processor 801, configured to determine a first resource; when determining to perform uplink data transmission through a second resource, determine first instruction information for instructing a terminal device to perform uplink data transmission through the second resource;

The transceiver 803 is configured to send first indication information to a network device through the first resource; and perform uplink data transmission through the second resource.

In a possible design, the transceiver 803 is specifically configured to:

Receiving first information sent by a network device, where the first information is used to indicate the first instruction information from at least one instruction information configured by the network device;

The processor 801 is specifically configured to determine the first indication information from the at least one indication information according to the first information.

In a possible design, before the transceiver 803 performs uplink data transmission through the second resource, it is further configured to:

The processor 801 is further configured to determine a resource associated with the first indication information among the at least one resource as the second resource.

Receiving second resource configuration information sent by a network device; the second resource configuration information indicating at least one resource used for uplink data transmission; receiving second information sent by the network device, the second information used to receive from the at least one One resource indicates the second resource;

The processor 801 is further configured to determine the second resource from the at least one resource according to the second information.

In a possible design, before the transceiver 803 performs uplink data transmission through the second resource, it is further configured to receive second resource configuration information sent by a network device; the second resource configuration information indicates that the At least one resource for uplink data transmission;

The processor 801 is further configured to select a resource from the at least one resource as the second resource.

In a possible design, the processor 801 is further configured to:

In a possible design, the processor 801 is configured to determine the first resource, including:

In a possible design, the transceiver 803 is further configured to receive third information sent by a network device, where the third information indicates a second preset time interval;

The processor 801 is configured to determine the first resource, which is used to be located before a second reference position, and a time interval between an end position and the second reference position is N of the second preset time interval For resources corresponding to each time unit, as the first resource, N is an integer greater than 0; and the second reference position is a starting position of the second resource.

As shown in FIG. 9, a schematic structural diagram of a communication device according to an embodiment of the present application is provided. The communication apparatus may be configured to perform actions of the terminal device in the foregoing method embodiments. The communication apparatus 900 includes a processing unit 901 and a transceiver unit 902.

A processing unit 901, configured to receive, in a first resource, first instruction information sent by a terminal device and used to instruct the terminal device to perform uplink data transmission through a second resource, and determine the information according to the first instruction information The terminal device performs uplink data transmission through the second resource;

The transceiver unit 902 is configured to receive uplink data sent by the terminal device in the second resource, and demodulate the received uplink data.

In a possible design, before the network device of the transceiver unit 902 receives the first instruction information sent by the terminal device in the first resource, it is further configured to:

Sending first resource configuration information to the terminal device; the first resource configuration information indicates the first resource.

In a possible design, before the transceiver unit 902 receives the first indication information sent by the terminal device in the first resource, it is further configured to:

Send second resource configuration information to the terminal device; the second resource configuration information indicates at least one resource used for uplink data transmission.

In a possible design, before receiving and receiving the first instruction information sent by the terminal device in the first resource, the transceiver unit 902 is further configured to:

Sending first information to the terminal device, where the first information is used to indicate the first instruction information from at least one instruction information pre-configured by the network device.

And sending second information to the terminal device, where the second information is used to indicate the second resource from the at least one resource.

FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in FIG. 10 may be an implementation manner of a hardware circuit of the communication device shown in FIG. 9. The communication device may be applicable to the flowchart shown in FIG. 2 to execute the functions of the network device in the foregoing method embodiment. For convenience of explanation, FIG. 10 shows only the main components of the communication device. Optionally, the communication device may be a network device or a device in the network device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may further include other circuit structures and / or Discrete devices. Optionally, the communication device is a network device as an example. As shown in FIG. 10, the communication device 1000 includes a processor 1001, a memory 1002, a transceiver 1003, an antenna 1004, and the like.

A processor 1001, configured to receive, in a first resource, first instruction information sent by a terminal device and used to instruct the terminal device to perform uplink data transmission through a second resource, and determine the first resource The terminal device performs uplink data transmission through the second resource;

The transceiver 1003 is configured to receive uplink data sent by the terminal device in the second resource, and demodulate the received uplink data.

In a possible design, before the transceiver 1003 network device receives the first instruction information sent by the terminal device in the first resource, it is further configured to:

In a possible design, before the transceiver 1003 receives the first instruction information sent by the terminal device in the first resource, it is further configured to:

Those skilled in the art should understand that the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, this application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, etc.) containing computer-usable program code.

This application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to this application. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, so that the instructions generated by the processor of the computer or other programmable data processing device are used to generate instructions Means for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions The device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these changes and variations.

Claims

A communication method, comprising:

The terminal device determines the first resource;

When the terminal device determines to perform uplink data transmission through the second resource, determine the first instruction information for instructing the terminal device to perform uplink data transmission through the second resource, and send the first device to the network device through the first resource. Sending the first indication information;

The terminal device performs uplink data transmission through the second resource.
The method according to claim 1, wherein the determining, by the terminal device, the first indication information comprises:

Receiving, by the terminal device, first information sent by the network device, where the first information is used to indicate the first instruction information from at least one instruction information configured by the network device;

The terminal device determines the first instruction information from the at least one instruction information according to the first information.
The method according to claim 1, wherein the determining, by the terminal device, the first indication information comprises:

The terminal device selects one piece of instruction information from the at least one piece of instruction information configured by the network device as the first instruction information.
The method according to any one of claims 1 to 3, wherein before the terminal device performs uplink data transmission through the second resource, the method further comprises:

Receiving, by the terminal device, second resource configuration information sent by the network device; the second resource configuration information indicates at least one resource used for uplink data transmission, and each of the at least one resource and an indication information Association

The terminal device determines, as the second resource, a resource associated with the first indication information among the at least one resource.
The method according to any one of claims 1 to 3, wherein before the terminal device performs uplink data transmission through the second resource, the method further comprises:

Receiving, by the terminal device, second resource configuration information sent by the network device; the second resource configuration information indicates at least one resource used for uplink data transmission;

Receiving, by the terminal device, second information sent by a network device, where the second information is used to indicate the second resource from the at least one resource;

The terminal device determines the second resource from the at least one resource according to the second information.
The method according to any one of claims 1 to 3, wherein before the terminal device performs uplink data transmission through the second resource, the method further comprises:

Receiving, by the terminal device, second resource configuration information sent by a network device; the second resource configuration information indicating at least one resource used for uplink data transmission;

The terminal device selects one resource from the at least one resource as the second resource.
The method according to claim 5 or 6, wherein each resource of the at least one resource is associated with one indication information, and the terminal device determining the first indication information comprises:

The terminal device uses the indication information associated with the second resource as the first indication information.
The method according to claim 6, wherein the selecting, by the terminal device, one resource from the at least one resource as the second resource comprises:

Selecting, by the terminal device, a resource corresponding to a transmission block size TBS required for the uplink data from the at least one resource as the second resource;

Alternatively, the terminal device selects, from the at least one resource, a resource corresponding to a reference signal received power RSRP measured by the terminal device as the second resource.
The method according to any one of claims 5 to 8, wherein each resource of the at least one resource is associated with a pre-configured resource; and the determining, by the terminal device, the first resource includes:

The terminal device uses the pre-configured resource associated with the second resource as the first resource.
The method according to any one of claims 1 to 8, wherein the determining, by the terminal device, the first resource comprises:

Receiving, by the terminal device, first resource configuration information sent by the network device; the first resource configuration information indicates the first resource;

Determining, by the terminal device, the first resource according to the first resource configuration information.
The method according to any one of claims 1 to 8, wherein the determining, by the terminal device, the first resource comprises:

The terminal device will be a resource corresponding to N time units that are located before the first reference position and the time interval between the end position and the first reference position is a first preset time interval, N is an integer greater than 0; the first reference position is the start position of the resource with the earliest start position among the at least one resource;

Alternatively, the terminal device uses the resources corresponding to N time units with the first reference position as a starting position as the first resource, and N is an integer greater than 0.
The method according to any one of claims 1 to 8, wherein the determining, by the terminal device, the first resource comprises:

Receiving, by the terminal device, third information sent by a network device, where the third information indicates a second preset time interval;

The terminal device will be located before the second reference position, and a resource corresponding to N time units of the second preset time interval between the end position and the second reference position is used as the first Resource, N is an integer greater than 0; the second reference position is the starting position of the second resource.
The method according to any one of claims 1 to 12, wherein the first indication information is one of the following or a combination of at least one of the following:

ZC sequence; Gold sequence; M sequence; Demodulation reference signal DMRS sequence; Preamble.
The method according to any one of claims 1 to 13, wherein the first indication information further indicates at least one of the following information:

The identifier of the terminal device; the MCS of the uplink data; the TBS of the uplink data; the number of repetitions of the uplink data.
A communication method, comprising:

When the network device receives the first instruction information sent by the terminal device in the first resource and used to instruct the terminal device to perform uplink data transmission through the second resource, the network device determines the information according to the first instruction information The terminal device performs uplink data transmission through the second resource;

The network device receives uplink data sent by the terminal device in the second resource, and demodulates the received uplink data.
The method according to claim 15, wherein before the network device receives the first indication information sent by the terminal device in the first resource, the method further comprises:

The network device sends second resource configuration information to the terminal device, where the second resource configuration information indicates at least one resource used for uplink data transmission.
The method according to claim 16, wherein before the network device receives the first indication information sent by the terminal device in the first resource, the method further comprises:

The network device sends second information to the terminal device, where the second information is used to indicate the second resource from the at least one resource.
The method according to claim 17, wherein the second information further indicates a resource type of the second resource; the resource type includes an exclusive resource and a shared resource; and the exclusive resource is Within the cell of the network device, a resource exclusive to one terminal device is allocated, and the shared resource is a resource shared by at least two terminal devices in the cell of the network device.
A communication device, comprising:

A processing unit, configured to determine a first resource; when determining to perform uplink data transmission through a second resource, determine first instruction information for instructing a terminal device to perform uplink data transmission through the second resource;

The transceiver unit is configured to send the first indication information to the network device through the first resource; and perform uplink data transmission through the second resource.
The device according to claim 19, wherein:

The transceiver unit is further configured to receive first information sent by the network device, where the first information is used to indicate the first instruction information from at least one instruction information configured by the network device;

The processing unit is specifically configured to determine the first instruction information from the at least one instruction information according to the first information.
The apparatus according to claim 20, wherein before the transmitting and receiving unit performs uplink data transmission through the second resource, the transmitting and receiving unit is further configured to:

Receiving second resource configuration information sent by a network device; the second resource configuration information indicates at least one resource for uplink data transmission, and each resource of the at least one resource is associated with one indication information;

The processing unit is further configured to determine, among the at least one resource, a resource associated with the first indication information as the second resource.
The apparatus according to any one of claims 19 to 21, wherein before the transmitting and receiving unit performs uplink data transmission through the second resource, the apparatus is further configured to:

Receiving second resource configuration information sent by a network device; the second resource configuration information indicating at least one resource used for uplink data transmission; receiving second information sent by the network device, the second information used to receive from the at least One resource indicates the second resource;

The processing unit is further configured to determine the second resource from the at least one resource according to the second information.
The device according to any one of claims 19 to 21, wherein:

Before sending and receiving the uplink data through the second resource, the transceiver unit is further configured to receive second resource configuration information sent by a network device; the second resource configuration information indicates at least one resource used for uplink data transmission;

The processing unit is further configured to select one resource from the at least one resource as the second resource.
The apparatus according to claim 23, wherein the processing unit is further configured to:

Selecting, from the at least one resource, a resource corresponding to a transmission block size TBS required for the uplink data as the second resource; or, from the at least one resource, selecting one to measure with the terminal device The resource corresponding to the received reference signal received power RSRP is used as the second resource.
The apparatus according to any one of claims 19 to 24, wherein the processing unit is configured to determine the first resource, comprising:

A resource corresponding to N time units that are located before the first reference position and whose time interval between the end position and the first reference position is a first preset time interval. As the first resource, N is An integer greater than 0; the first reference position is a start position of an earliest resource among the at least one resource;

Alternatively, it is used to use the resource corresponding to the N time units starting from the first reference position as the first resource, where N is an integer greater than 0.
The device according to any one of claims 19 to 24, wherein:

The transceiver unit is further configured to receive third information sent by a network device, where the third information indicates a second preset time interval;

The processing unit is configured to determine the first resource, and includes: a unit that is positioned before a second reference position and a time interval between an end position and the second reference position is the second preset time interval; For resources corresponding to N time units, as the first resource, N is an integer greater than 0; and the second reference position is a starting position of the second resource.
A communication device, comprising:

A processing unit, configured to receive, according to the first instruction information, the first instruction information sent by the terminal device from the first resource and used to instruct the terminal device to perform uplink data transmission through the second resource through the transceiver unit Determining that the terminal device performs uplink data transmission through the second resource;

The transceiver unit is further configured to receive uplink data sent by the terminal device in the second resource, and demodulate the received uplink data.
The apparatus according to claim 27, wherein before receiving and receiving the first instruction information sent by the terminal device from the first resource, the transceiver unit is further configured to:

Send second resource configuration information to the terminal device; the second resource configuration information indicates at least one resource used for uplink data transmission.
A communication device, comprising: a memory and a processor, where the memory is configured to store instructions, the processor is configured to execute instructions stored in the memory, and execution of the instructions stored in the memory is such that, The processor is configured to perform the method according to any one of claims 1 to 20.
A computer-readable storage medium, comprising computer-readable instructions, which, when a communication device reads and executes the computer-readable instructions, causes the communication device to execute the device according to any one of claims 1 to 20. The method described.