CN112703791A

CN112703791A - Communication method and device

Info

Publication number: CN112703791A
Application number: CN201880097540.2A
Authority: CN
Inventors: 米翔; 铁晓磊; 苏俞婉; 金哲
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2021-04-23
Anticipated expiration: 2038-09-28
Also published as: WO2020062105A1; CN112703791B

Abstract

A communication method and device are provided, wherein the method comprises the following steps: the terminal equipment determines a first resource; when determining that uplink data transmission is performed through a second resource, the terminal device determines first indication information for indicating that the terminal device performs uplink data transmission through the second resource, and sends the first indication information to a network device through the first resource; and the terminal equipment transmits uplink data through 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 apparatus.

Background

Narrow-band internet of things (NB-IoT) is a network facing Machine Type Communication (MTC) and is an important network in the future communication field. The communication of the Internet of things is mainly applied to scenes such as intelligent meter reading, medical detection and monitoring, logistics detection, industrial detection and monitoring, Internet of vehicles, intelligent communities, wearable equipment communication and the like. In NB-IoT, when the terminal equipment has uplink data to be transmitted, the terminal equipment needs to request uplink resources from a base station; then the base station sends down the uplink transmission scheduling information according to the request of the terminal equipment; the terminal equipment transmits uplink data according to the uplink resource scheduled by the uplink transmission scheduling information; finally, the base station transmits Downlink Control Information (DCI) of a corresponding format (format) according to the demodulation condition of the uplink data. The format of the DCI includes DCI format N0, DCI format N1, and the like.

At present, the technology of adding UpLink non-scheduled transmission in NB-IoT is being studied, wherein UpLink non-scheduled transmission may also be referred to as grant-free transmission, UpLink transmission in predefined resources, transmission in predefined UL resources, and the like, and hereinafter referred to as UpLink non-scheduled transmission. In the uplink scheduling-free transmission technology, a base station pre-configures uplink scheduling-free resources for terminal equipment, and when the terminal equipment has uplink data to transmit, the terminal equipment directly transmits the uplink data on the pre-configured uplink scheduling-free resources according to a pre-specified transmission mode; and the base station sends feedback information according to the demodulation condition of the uplink data. It can be seen from the above flow 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, thereby reducing signaling flow, and having the advantages of reducing power consumption delay, reducing signaling overhead, and the like.

However, in the uplink scheduling-free transmission technique, after the base station configures the uplink scheduling-free resource for the terminal device, the base station does not know when the terminal device performs uplink scheduling-free transmission through the uplink scheduling-free resource. Therefore, the base station needs to perform operations such as blind detection, blind decoding and the like on each uplink scheduling-free resource, which results in higher complexity of blind detection of the base station and waste of power consumption of the base station.

In summary, in the uplink non-scheduled transmission technology, how to reduce the blind detection complexity of the base station is an urgent problem to be solved.

Disclosure of Invention

An object of the embodiments of the present application is to provide a communication method and apparatus, so as to solve a problem how to reduce a blind detection complexity of a network device in an uplink non-scheduling transmission technology.

The embodiment of the application provides a communication method, which comprises the following steps: the terminal equipment determines a first resource; when determining that uplink data transmission is performed through a second resource, the terminal device determines first indication information for indicating that the terminal device performs uplink data transmission through the second resource, and sends the first indication information to a network device through the first resource; and the terminal equipment transmits uplink data through the second resource.

By the method, the terminal equipment is indicated to transmit the uplink data in the second resource by sending the first indication information before the terminal equipment transmits the uplink data, so that the network equipment can determine that the second resource comprises the uplink data of the terminal equipment, blind detection in the second resource is not needed, the blind detection complexity of the network equipment can be reduced, the power consumption of the network equipment is reduced, and the data transmission efficiency is improved.

In one possible design, the determining, by the terminal device, the first indication information includes: the terminal equipment receives first information sent by the network equipment, wherein the first information is used for indicating the first indication information from at least one indication information configured by the network equipment; and the terminal equipment determines the first indication information from the at least one indication information according to the first information.

In one possible design, the determining, by the terminal device, the first indication information includes: the terminal equipment selects one piece of indication information from at least one piece of indication information configured by the network equipment as the first indication information.

In one possible design, before the terminal device performs uplink data transmission via the second resource, the method further includes: the terminal equipment receives second resource configuration information sent by the network equipment; 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; and the terminal equipment determines the resource associated with the first indication information in the at least one resource as the second resource.

By the method, the second resource is associated with the first indication information, and the terminal equipment can determine the second resource associated with the first indication information only by indicating the first indication information by the network equipment; accordingly, the network device receives the first indication information, and can determine the location of the second resource associated with the first indication information.

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

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

In one possible design, each resource of the at least one resource is associated with an indication information, and the terminal device determines the first indication information, including: and the terminal equipment takes the indication information associated with the second resource as the first indication information.

By the method, the second resource is associated with the first indication information, and the terminal equipment can determine the first indication information associated with the second resource only by indicating the second resource by the network equipment; accordingly, the network device receives the first indication information, and can determine the location of the second resource associated with the first indication information.

In one possible design, the selecting, by the terminal device, one resource from the at least one resource as the second resource includes: the terminal equipment selects a resource corresponding to a Transport Block Size (TBS) required by the uplink data from the at least one resource as the second resource; or, the terminal device selects a resource corresponding to the RSRP measured by the terminal device from the at least one resource as the second resource.

In one possible design, each resource of the at least one resource is associated with a preconfigured resource; the terminal equipment determines a first resource, and the method comprises the following steps: the terminal device takes a pre-configured resource associated with the second resource as the first resource.

By the method, the second resource is associated with the first resource, and the terminal equipment can determine the first resource associated with the second resource only by determining the second resource; accordingly, the network device receives the first indication information in the first resource, and can determine the location of the second resource associated with the first resource.

In one possible design, the determining, by the terminal device, the first resource includes: the terminal equipment receives first resource configuration information sent by network equipment; the first resource configuration information indicates the first resource; and the terminal equipment determines the first resource according to the first resource configuration information.

In one possible design, the determining, by the terminal device, the first resource includes: the terminal device takes resources corresponding to N time units which are positioned in front of a first reference position and have a time interval between an end position and the first reference position as a first preset time interval as the first resources, wherein N is an integer greater than 0; the first reference position is the starting position of the resource with the earliest starting position in the at least one resource; or, the terminal device uses resources corresponding to N time units with the first reference position as a starting position as the first resource, where N is an integer greater than 0.

By the method, at least one resource configured by the network equipment can be associated with the same first resource, so that the resource utilization rate is improved. Meanwhile, the position of the first resource can be appointed in advance between the network equipment and the terminal equipment, so that the first resource does not need to be indicated through signaling, and the signaling overhead is reduced.

In one possible design, the determining, by the terminal device, the first resource includes: the terminal equipment receives third information sent by the network equipment, wherein the third information indicates a second preset time interval; the terminal device takes the resources corresponding to N time units which are positioned in front of a second reference position and have a time interval between an end position and the second reference position as a second preset time interval as the first resources, wherein N is an integer greater than 0; the second reference position is a starting position of the second resource.

By the method, the flexibility of the first indication information can be improved, the first resource for sending the first indication information is prevented from colliding with the second resource for generating uplink data, and the system efficiency is improved.

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

a ZC sequence; a Gold sequence; an M sequence; demodulating a reference signal (DMRS) sequence; a preamble.

By the method, when the first indication information is the sequence, the transmission duration is shorter than the duration of uplink data in the second resource, so that the complexity of blind detection of the first indication information by the network equipment is less than the complexity of blind detection of the uplink data in the second resource, and the complexity of blind detection of the uplink data of the terminal equipment by the network equipment can be reduced by the first indication information.

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

In a second aspect, an embodiment of the present application provides a communication apparatus, which includes a processor coupled with a memory, wherein: the memory is used for storing instructions; the processor is configured to execute the method according to the first aspect or any one of the possible designs of the first aspect, in accordance with instructions stored by the execution memory. 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 above method. Optionally, the communication device may be a terminal device, or may be 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.

In a third aspect, an embodiment of the present application provides a communication apparatus, configured to implement any one of the above first aspect or the first aspect, where the communication apparatus includes corresponding functional modules, for example, a processing unit, a transceiver unit, and the like, that are respectively configured to implement the steps in the above method.

In a fourth aspect, a method of communication, comprising: when network equipment receives first indication information which is sent by terminal equipment and used for indicating the terminal equipment to carry out uplink data transmission through a second resource in a first resource, the network equipment determines that the terminal equipment carries out uplink data transmission through the second resource according to the first indication information; and the network equipment receives the uplink data sent by the terminal equipment in the second resource and demodulates the received uplink data.

By the method, the network equipment receives the first indication information, and then the terminal equipment can be determined to transmit the uplink data in the second resource, so blind detection in the second resource is not needed, the blind detection complexity of the network equipment can be reduced, the power consumption of the network equipment is reduced, and the data transmission efficiency is improved.

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

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

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

In a possible design, before the network device receives, in the first resource, the first indication information sent by the terminal device, the method further includes: the network equipment sends first information to the terminal equipment, wherein the first information is used for indicating the first indication information from at least one indication information preconfigured by the network equipment.

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

In one possible design, the second information further indicates a resource type of the second resource; the resource types comprise exclusive resources and shared resources; the exclusive resource is a resource allocated to one terminal device exclusively in the cell of the network device, and the shared resource is a resource allocated to at least two terminal devices in the cell of the network device.

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

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

an identity of the terminal device; an MCS for the uplink data; TBS of the uplink data; and repeating the uplink data for a repetition time.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, which includes a processor coupled with a memory, wherein: the memory is used for storing instructions; the processor is configured to execute the method of the fourth aspect or any of the possible designs of the fourth aspect, in accordance with instructions stored by the execution memory. 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 above method. Optionally, the communication device may be a network device, or may be a device in a 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.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, configured to implement any one of the above fourth aspect or fourth aspect, where the communication apparatus includes corresponding functional modules, for example, a processing unit, a transceiver unit, and the like, that are respectively configured to implement the steps in the above method.

The embodiment of the application provides a communication method, which comprises the following steps: the network equipment determines fourth information, wherein the fourth information is used for indicating whether the terminal equipment needs to send fifth information before sending uplink data in the scheduling-free resource, and the fifth information is used for indicating that the uplink data is sent in the scheduling-free resource; and the network equipment sends fourth information to the terminal equipment.

In one possible design, the scheduling-free resource is a resource configured by the network device for the terminal device and used for sending uplink data.

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

By the method, when the network equipment determines that the coverage condition of the terminal equipment is greater than the preset threshold value, the network equipment can determine that the terminal equipment is in good coverage, so that the terminal equipment can be instructed not to send the fifth information, power consumption and network resource overhead of the terminal equipment are reduced, and complexity of blind detection of the network equipment is reduced.

In one possible design, the coverage condition is any of: a coverage level; and (4) RSRP.

The embodiment of the application provides a communication method, which comprises the following steps: the terminal equipment receives fourth information sent by network equipment, wherein the fourth information is used for indicating whether the terminal equipment needs to send fifth information before sending uplink data in scheduling-free resources, and the fifth information is used for indicating the terminal equipment to send the uplink data in the scheduling-free resources; and if the terminal equipment determines that the fifth information does not need to be sent according to the fourth information, the terminal equipment does not send the fifth information before sending the uplink data.

By the method, the terminal equipment does not need to send the fifth information when receiving the fourth information sent by the network equipment, so that the power consumption and the network resource overhead of the terminal equipment are reduced, and the complexity of blind detection of the network equipment is reduced.

The embodiment of the application provides a communication method, which comprises the following steps: and if the terminal equipment transmits the uplink data through the scheduling-free resource in each period of the periodic scheduling-free resource, the terminal equipment does not transmit the fifth information before transmitting the uplink data, wherein the fifth information is used for indicating that the uplink data is transmitted in the scheduling-free resource.

By the method, the terminal equipment does not need to send the fifth information when periodically sending the uplink data, so that the power consumption and the network resource overhead of the terminal equipment are reduced, and the complexity of blind detection of the network equipment is reduced.

Embodiments of the present application provide a computer-readable storage medium, which stores computer-readable instructions, and when the computer-readable instructions are read and executed by a computer, the computer-readable instructions cause a communication device to perform the method in any one of the above possible designs.

Embodiments of the present application provide a computer program product, which when read and executed by a computer, causes the communication apparatus to perform the method of any one of the above possible designs.

The embodiment of the present application provides a chip, where the chip is connected to a memory, and is used to read and execute a software program stored in the memory, so as to implement the method in any one of the above possible designs.

An embodiment of the present application provides a communication device, including a processor, which is configured to couple with a memory, read and execute instructions in the memory, so as to implement a method in any one of the above aspects or any one of the possible designs of any one of the above aspects.

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.

Drawings

Fig. 1 is a schematic diagram of a communication system suitable for use in the communication method of the embodiment of the present application;

fig. 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 partitioning according to an embodiment of the present application;

fig. 4 is a schematic view of a resource association provided in an embodiment of the present application;

fig. 5 is a schematic view of a resource association provided in an embodiment of the present application;

fig. 6 is a schematic view of a resource association provided in 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;

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

fig. 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

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

The embodiment of the application can be applied to various mobile communication systems, such as: other communication systems, such as a New Radio (NR) system, a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a Long Term Evolution (LTE) system, and an advanced long term evolution (LTE-a) system, are not limited herein.

For the convenience of understanding the embodiments of the present application, a communication system applicable to the embodiments of the present application will be first described in detail by taking the communication system shown in fig. 1 as an example. Fig. 1 shows a schematic diagram of a communication system suitable for the communication method of the embodiment of the present application. As shown in fig. 1, the network device and UEs 1-6 form a communication system. In the communication system, the UEs 1 to 6 may transmit uplink data to the network device, and the network device may also transmit downlink data to the UEs 1 to 6. In addition, the UEs 4 to 6 may also form a communication system, and in this case, the network device may send downlink data of the

UEs

4 and 6 to the UE5, and the UE5 forwards the downlink data to the

UEs

4 and 6.

Specifically, the terminal device in the embodiment of the present application provides voice and/or data connectivity to a user, and is a device having a wireless transceiving function or a chip that can be disposed on the device. The terminal device may communicate with one or more core networks via a Radio Access Network (RAN). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Personal Digital Assistant (PDA), a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and so on. The embodiments of the present application do not limit the application scenarios. The terminal device and the chip that can be installed in the terminal device are collectively referred to as a terminal device in this application. The terminal device in this embodiment may also be referred to as a User Equipment (UE), a user terminal (user terminal), an access terminal (access terminal), a subscriber unit, a subscriber station, a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), a remote terminal (remote terminal), a mobile device, a wireless communication device, a user agent, or a user equipment.

The network device, which is a device with wireless transceiving function or a chip provided in the device, can be used to convert the received air frame and IP packet into each other, as a router between the terminal device and the rest of the access network, and can also be used to coordinate the attribute management of the air interface. Such devices include, but are not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a baseband unit (BBU), an Access Point (AP) in a wireless fidelity (WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (TRP or transmission point, TP) in a 5G (nr) system, a gbb or transmission point (TRP or TP) in a 5G (nr) system, an antenna panel(s) of a base station in a 5G system, or a group of panels including multiple antennas, etc.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

Some scenarios in the embodiment of the present application are described by taking a scenario of an NB-IoT network in a wireless communication network as an example, it should be noted that the scheme in the embodiment of the present application may also be applied to other wireless communication networks, and corresponding names may also be replaced with names of corresponding functions in other wireless communication networks.

In conjunction with the foregoing description, as shown in fig. 2, a flow chart of a communication method provided in the embodiment of the present application is shown. Referring to fig. 2, the method includes:

step 201: the terminal device determines a first resource.

Step 202: when determining that uplink data transmission is performed through a second resource, a terminal device determines first indication information for indicating the terminal device to perform uplink data transmission through the second resource, and sends the first indication information to a network device through the first resource.

It should be noted that the second resource is a resource pre-configured by the network device, and before the terminal device performs uplink data transmission in the second resource, it is not required to request the network device to schedule the second resource for the terminal device, and how to pre-configure the second resource specifically is not limited in this embodiment of the application, and details are not described here again.

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

The number of time units comprised by the second resource may be greater than, equal to, or less than the number of time units comprised by the first resource. The time unit may refer to a single-carrier frequency-division multiple access (SC-FDMA) symbol or slot (slot) or Resource Unit (RU) or repetition (repetition) number of times, etc.

Step 203: and the terminal equipment transmits uplink data through the second resource.

Step 204: when network equipment receives first indication information which is sent by terminal equipment and used for indicating the terminal equipment to carry out uplink data transmission through a second resource in a first resource, the network equipment determines that the terminal equipment carries out the uplink data transmission through the second resource according to the first indication information.

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

In the above method flow, before the terminal device transmits the uplink data, the terminal device is indicated to perform uplink data transmission in the second resource by sending the first indication information. The second resource is a scheduling-free resource pre-configured by the network equipment, and the network equipment receives the first indication information and determines whether the terminal equipment transmits uplink data in the second resource, so that the blind detection complexity of the network equipment can be reduced, the power consumption of the network equipment is reduced, and the data transmission efficiency is improved.

In the embodiment of the application, whether the terminal device sends the first indication information may have various scenes. In a first possible scenario, the terminal device instructs the terminal device to send uplink data in the second resource by sending the first indication information only before performing uplink data transmission through the second resource; correspondingly, the terminal equipment does not send the first indication information when the uplink data transmission through the second resource is not needed.

In a second possible scenario, when determining that uplink data transmission does not need to be performed through the second resource, the terminal device indicates that uplink data transmission is not performed through the second resource by sending the first indication information. Correspondingly, when the terminal equipment determines that the uplink data transmission needs to be carried out through the second resource, the terminal equipment does not send the first indication information, but directly carries out the uplink data transmission.

In a third possible scenario, the terminal device sends the first indication information no matter whether uplink data transmission is performed through the second resource. Specifically, when the terminal device needs to perform uplink data transmission through the second resource, the terminal device is instructed to perform uplink data transmission through the second resource by sending first indication information; correspondingly, when the terminal equipment does not need to transmit uplink data through the second resource, the terminal equipment is indicated not to transmit the uplink data through the second resource by sending the first indication information.

In this embodiment of the present application, the first indication information may be configured according to carrier (carrier) granularity, that is, each carrier is configured with one indication information, where one first indication information is on carrier 1 and another first indication information is on carrier 2; or may be configured according to coverage level (coverage level) granularity, that is, one indication information is configured for each coverage level, for example, there are at most 3 coverage enhancement levels (coverage enhancement level 0, coverage enhancement level 1, and coverage enhancement level 2) for an NB-IoT, and different coverage enhancement levels may be configured with different first indication information.

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

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

For example, when the first indication information is the DMRS sequence, if the first resource includes L time elements, the DMRS sequence may occupy the L time elements of the first resource in a repeated manner. A time unit may refer to a slot (slot) or a Resource Unit (RU) or a repetition (repetition) number, etc.

For example, when the first indication information is a preamble, in the current NB-IoT system, there are multiple preambles that can be used, and these preambles are divided into 2 or 3 orthogonal sets. If the set is divided into 2 orthogonal sets, namely set 1 and set 2, the preamble in the set 1 is used for random access, and the preamble in the set 2 is used as first indication information; when divided into 3 orthogonal sets, namely set 1, set 2 and set 3: the preamble in the set 1 is used for random access, the preamble in the set 2 is used as the first indication information, and the preamble in the set 3 is used for 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 herein one by one.

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

an identity of the terminal device; a Modulation and Coding Scheme (MCS) of the uplink data; a Transport Block Size (TBS) of the uplink data; the number of repetitions of the uplink data.

The terminal equipment for transmitting the uplink data can be quickly determined by the identification network equipment indicating the terminal equipment, so that the blind detection complexity of the network equipment is reduced, and the detection efficiency of the uplink data is improved. By indicating the MCS of the uplink data, the network equipment can directly determine the MCS of the uplink data, thereby reducing the blind detection complexity of the network equipment and improving the demodulation efficiency of the uplink data. By indicating the TBS of the uplink data, the network equipment can determine the size of the uplink data transmitted by the terminal equipment, thereby reducing the blind detection complexity of the network equipment and improving the detection efficiency of the uplink data. By indicating the repetition times of the uplink data, the blind detection complexity of the network equipment can be reduced, and the detection efficiency of the network equipment on the uplink data can be improved.

In this embodiment of the 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 described below respectively.

It should be noted that, in this embodiment of the application, the terminal device determines the order of the first resource, the first indication information, and the second resource, which is not limited and is 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.

The first method is as follows: the network equipment sends first information, and the first information is used for indicating the first indication information from at least one indication information configured by the network equipment.

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

How to configure the at least one piece of indication information by the network device is not limited in this embodiment of the application, and is not described herein again.

The second method comprises the following steps: the terminal equipment selects one piece of indication information from at least one piece of indication information configured by the network equipment as the first indication information.

In this embodiment of the present application, the terminal device may randomly select one piece of indication information as the first indication information, or may select the first indication information in other manners.

The third method comprises the following steps: in this embodiment of the present application, the network device may configure at least one resource for the terminal device in advance, where each resource in the at least one resource is associated with one piece of indication information. The second resource used by the terminal device for transmitting the 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 for the terminal device to transmit the uplink data.

The terminal device may determine a second resource from the at least one resource, and use 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 described herein again.

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

The first method is as follows: the terminal equipment receives second resource configuration information sent by the network equipment; the second resource configuration information indicates at least one resource for uplink data transmission;

the terminal equipment receives second information sent by network equipment, wherein the second information is used for indicating the second resource from the at least one resource;

and the terminal equipment determines the second resource from the at least one resource according to the second information.

Further, optionally, the second information may further indicate a resource type of the second resource; the resource types include a dedicated resource and a shared resource; the exclusive resource is a resource allocated to one terminal device exclusively in the cell of the network device, and the shared resource is a resource allocated to at least two terminal devices in the cell of the network device.

In connection with the above description, the shared resource, i.e., the resource allocated by the network device to a plurality of terminal devices, may conflict between the terminal devices when transmitting data. Exclusive resources, that is, the network device allocates the resources to only one terminal device, no conflict occurs.

The terminal device determines the resource type of the second resource through the second indication information, and then can determine whether the second resource is simultaneously allocated to other terminal devices, and the terminal device can adjust the sending mode to realize more efficient transmission. For example, if the resource type of the second resource is a shared resource, a collision may occur, and the terminal device may select a low bit rate and a high repetition number to transmit the uplink data, so as to improve the reliability of data transmission; correspondingly, if the resource type of the second resource is an exclusive resource, the terminal device may select a high code rate and a low repetition number to transmit the uplink data, so as to reduce resource overhead and power consumption.

In the embodiment of the present application, when the network device configures 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 may indicate one resource and a maximum repetition (repetition) number, and the terminal device may split the maximum repetition number according to a bisection method, obtain multiple split repetition numbers, and then determine a resource corresponding to each repetition number. 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 2 64, 4 32; then determining the resources corresponding to each repetition number, namely the resource #2 and the resource #3, as the number of the repeated transmission times is 64; the number of retransmissions for resource #4, resource #5, resource #6, and resource #7 is 32. Thus, the network device indicates a total of 7 resources, one for each repetition.

It should be noted that, in this embodiment of the present application, if uplink data occupies T Resource Units (RUs), and the number of repetitions is K, the second resource includes K × T RUs, and T is an integer greater than or equal to 1. Wherein one RU includes at least one slot (slot) in a time domain, and each slot includes 7 single-carrier frequency-division multiple access (SC-FDMA) symbols.

In this embodiment of the application, the second resource configuration information may be sent through system information, or may be sent through Radio Resource Control (RRC) signaling, and this is not limited in this embodiment of the application. The system information may be a Master Information Block (MIB) or a System Information Block (SIB).

The second method comprises the following steps: in the embodiment of the application, each resource in at least one resource indicated by the second resource configuration information is associated with one indication information by the network device, and thus the terminal device may determine the second resource according to the association relationship.

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

How the terminal device determines the first indication information may refer to the foregoing description, and is not described herein again.

The third method comprises the following steps: the terminal equipment receives second resource configuration information sent by the network equipment; the second resource configuration information indicates at least one resource for uplink data transmission. And the terminal equipment selects one resource from the at least one resource as the second resource, and takes 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, and may also select the second resource in other manners.

For example, a corresponding relationship between a Transport Block Size (TBS) required for uplink data and each of the at least one resource is pre-established, and the terminal device may select a resource corresponding to the TBS required for the uplink data from the at least one resource as the second resource. For example, each resource in the at least one resource corresponds to a different TBS value range, and when the TBS is located in the first value range, the TBS corresponds to one resource in the at least one resource; the TBS is located in a second range of values, corresponds to another resource of the at least one resource, and so on. And after the terminal equipment determines the TBS, determining a value range of the TBS, and taking the resource corresponding to the value range in the at least one resource as a second resource.

For another example, a corresponding relationship between Reference Signal Receiving Power (RSRP) and each of the at least one resource is pre-established, and the terminal device selects a resource corresponding to the RSRP measured by the terminal device from the at least one resource as the second resource. Correspondingly, each resource in the at least one resource corresponds to a different RSRP value range. And after the terminal equipment determines the RSRP, determining a value range of the RSRP, and taking the resource corresponding to the value range in the at least one resource as a second resource.

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

In a first manner, when the first resource and the second resource do not have an association relationship, the first resource may be indicated by the network device through a signaling, for example, the network device may send first resource configuration information to the terminal device; the first resource configuration information is used for indicating the first resource. The terminal device may thereby determine the first resource based on the first resource configuration information.

In a second mode, when the first resource and the second resource have an association relationship, the association relationship between the first resource and the second resource may be established in advance, and the terminal device may use a pre-configured resource associated with the second resource as the first resource.

In this implementation, each of the at least one resource may be associated with the same pre-configured resource, in which case the first indication information is sent on the same first resource regardless of which of the at least one resource is selected by the terminal device. The indication information used by different terminal devices can be distinguished by adopting a code division multiplexing mode.

By the method, the same first resource can be reused by the plurality of terminal devices, and the resource utilization rate is improved. Meanwhile, the position of the first resource can be appointed in advance between the network equipment and the terminal equipment, so that the first resource does not need to be indicated through signaling, and the signaling overhead is reduced.

For example, as shown in fig. 4, 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 are all associated with the same pre-configured resource, i.e., the first resources associated with resource #1, resource #2, resource #3, and resource #4 are the same.

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

In a third way, in a 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 fig. 5. The at least one resource indicated by the network device through the second resource configuration information is: the resource #1, the resource #2, the resource #3, and the resource #4 are all associated with the same pre-configured resource, that is, the first resources associated with the resource #1, the resource #2, the resource #3, and the resource #4 are the same, and the first resource is a resource corresponding to N time units starting from the start position of the resource # 1.

In an embodiment of the present application, each resource of the at least one resource may be associated with a different pre-configured resource. In this case, the network device may inform the terminal device of a time interval from which the terminal device may derive the location of the first resource 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 that are located before a second reference position and have a time interval between an end position and the second reference position being the second preset time interval, where 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 can be distinguished by adopting a code division multiplexing mode and/or 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 are associated with different pre-configured resources, respectively. Resource #1, resource #2, resource #3, and resource #4 have time intervals (gap) with the associated pre-configured resources, respectively, of interval 1, interval 2, interval 3, and interval 4. The network device only needs to indicate interval 1, interval 2, interval 3 and interval 4, and the terminal device can derive the corresponding resource.

By the above method, when the first indication information is used for indicating the terminal device to perform uplink data transmission through the second resource, the terminal device may send the first indication information according to the determined first resource before performing uplink data transmission through the second resource. Accordingly, when the network device receives the first indication information, it may be determined that uplink data of the terminal device exists in the second resource, so that the uplink data is received and demodulated in the second resource. The network device determines that the uplink data of the terminal device exists in the second resource through the first indication information, so that the complexity of blind detection of the network device can be reduced, and the efficiency of the network device is improved. It should be noted that, the network device is configured in advance when the second resource is, so that the network device may determine the location of the second resource, and the network device may also determine the second resource according to the association relationship between the first indication information and the second resource, which is not described herein again.

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

In a first possible scenario, the network device may determine a coverage condition of the terminal device; the coverage condition is the coverage grade 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 for indicating that the terminal equipment does not need to send fifth information before sending uplink data in the scheduling-free resource, and the fifth information is used for indicating that the terminal equipment sends the uplink data in the scheduling-free resource.

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

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 the fourth information.

When the terminal device is in good coverage, the network device receives high DMRS energy sent by the terminal device, and the network device may perform activity detection (activity detection) on the terminal device based on the DMRS, or the uplink data sent by the terminal device occupies a small number of RUs and reptitions, and even if the network device performs blind decoding (blank decoding) on the uplink data of the terminal device, the cost is not high, so that the terminal device may not need to send the fifth information to the network device at this time.

Correspondingly, the terminal device receives fourth information sent by the network device, and if it is determined that the fifth information does not need to be sent according to the fourth information, the terminal device does not send the fifth information before sending the uplink data. On the contrary, 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 transmits uplink data in the scheduling-free resource of each period of the periodic scheduling-free resource, the terminal device does not transmit the fifth information before transmitting the uplink data in the scheduling-free resource of each period. And the fifth information is used for indicating the terminal equipment to send uplink data in scheduling-free resources.

In this scenario, if the uplink data sent by the terminal device is periodically reported data, and each period sends the uplink data in a periodic scheduling-free resource, and the sending period of the uplink data is the same as the period of the scheduling-free resource, the terminal device may send the uplink data directly without sending the fifth information before sending the uplink data.

For example, the network device configures a periodic scheduling-free resource for the terminal device, and if the terminal device transmits uplink data through the scheduling-free resource in each period of the periodic scheduling-free resource, the network device may determine that the terminal device will periodically transmit the uplink data, and at this time, the terminal device may not need to transmit the fifth information to the network device before transmitting the uplink data.

By the method, the terminal equipment does not need to send the fifth information under the condition, so that the power consumption and the network resource overhead of the terminal equipment are reduced, and the complexity of blind detection of the network equipment is reduced.

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

A processing unit 701, configured to determine a first resource; when determining that uplink data transmission is performed through a second resource, determining first indication information for indicating a terminal device to perform uplink data transmission through the second resource;

a transceiving unit 702, configured to send first indication information to a network device through the first resource; and performing uplink data transmission through the second resource.

In one possible design, the transceiver unit 702 is further configured to: receiving first information sent by the network equipment, wherein the first information is used for indicating the first indication information from at least one indication information configured by the network equipment;

the processing unit 701 is specifically configured to: determining the first indication information from the at least one indication information according to the first information.

In one possible design, before the transceiver 702 performs uplink data transmission via the second resource, the transceiver is further configured to:

receiving second resource configuration information sent by the network equipment; 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, as the second resource, a resource associated with the first indication information in the at least one resource.

In one possible design, before the transceiver 702 performs uplink data transmission via the second resource, the transceiver is further configured to: receiving second resource configuration information sent by the network equipment; the second resource configuration information indicates at least one resource for uplink data transmission; receiving second information sent by a network device, wherein the second information is used for indicating 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 transceiver unit 702 performs uplink data transmission 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 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 one possible design, the processing unit 701 is further configured to:

selecting a resource corresponding to a transport block size, TBS, required for the uplink data from the at least one resource as the second resource; or, a resource corresponding to the RSRP measured by the terminal device is selected from the at least one resource as the second resource.

In one possible design, the processing unit 701 is configured to determine the first resource, and includes:

the resources corresponding to N time units which are positioned in front of the first reference position and have a time interval between the end position and the first reference position as a first preset time interval are used as the first resources, and N is an integer greater than 0; the first reference position is the starting position of the resource with the earliest starting position in the at least one resource;

or, the resource corresponding to N time units with the first reference position as the starting position is used as the first resource, where N is an integer greater than 0.

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

receiving third information sent by network equipment, wherein the third information indicates a second preset time interval;

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

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

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 a hardware circuit implementation of the communication device shown in fig. 7. The communication device can be applied to the flow chart shown in fig. 2, and performs the functions of the terminal device in the above method embodiment. For ease of illustration, fig. 8 shows only the main components of the communication device. Optionally, the communication device may be a terminal device, or may be 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, taking the communication apparatus as a terminal device as an example, as shown in fig. 8, the communication apparatus 800 includes a processor 801, a memory 802, a transceiver 803, an antenna 804, and an input/output apparatus 805. The processor 801 is mainly configured to process the communication protocol and the communication data, control the entire wireless communication apparatus, execute a software program, process data of the software program, for example, to support the wireless communication apparatus to perform the actions described in the above method embodiments. The memory 802 is used primarily for storing software programs and data. The transceiver 803 is mainly used for conversion of baseband signals and radio frequency signals and processing of 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 for receiving data input by a user and outputting data to the user.

A processor 801 for determining a first resource; when determining that uplink data transmission is performed through a second resource, determining first indication information for indicating a terminal device to perform uplink data transmission through the second resource;

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

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

receiving first information sent by a network device, wherein the first information is used for indicating the first indication information from at least one indication 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 one possible design, before the transceiver 803 performs uplink data transmission via the second resource, the transceiver is further configured to:

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

receiving second resource configuration information sent by the network equipment; the second resource configuration information indicates at least one resource for uplink data transmission; receiving second information sent by a network device, wherein the second information is used for indicating the second resource from the at least one 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 performing uplink data transmission through the second resource, the transceiver 803 is further configured to receive second resource configuration information sent by a network device; the second resource configuration information indicates at least one resource for uplink data transmission;

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

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

In one possible design, the processor 801 is configured to determine the first resource, and includes:

In one 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, and is configured to use, as the first resource, a resource corresponding to N time units that are located before a second reference position and have a time interval between an end position and the second reference position as the second preset time interval, where N is an integer greater than 0; the second reference position is a starting position of the second resource.

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

A processing unit 901, configured to determine, when receiving, in a first resource, first indication information, which is sent by a terminal device and used for indicating the terminal device to perform uplink data transmission through a second resource, that the terminal device performs uplink data transmission through the second resource according to the first indication information;

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

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

sending first resource configuration information to the terminal equipment; the first resource configuration information indicates the first resource.

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

sending second resource configuration information to the terminal equipment; the second resource configuration information indicates at least one resource for uplink data transmission.

sending first information to the terminal device, wherein the first information is used for indicating the first indication information from at least one indication information preconfigured by the network device.

the sending of second information to the terminal device is used for indicating 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 a hardware circuit implementation of the communication device shown in fig. 9. The communication device may be adapted to the flowchart shown in fig. 2 to perform the functions of the network device in the above-described method embodiment. For ease of illustration, fig. 10 shows only the main components of the communication device. Optionally, the communication device may be a network device, or may be a device in a 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, taking the communication apparatus as a network device as an example, as shown in fig. 10, the communication apparatus 1000 includes a processor 1001, a memory 1002, a transceiver 1003, an antenna 1004, and the like.

A processor 1001, configured to determine, when receiving, in a first resource, first indication information that is sent by a terminal device and used to indicate that the terminal device performs uplink data transmission through a second resource, that the terminal device performs uplink data transmission through the second resource according to the first indication information;

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

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

In one possible design, before receiving the first indication information sent by the terminal device in the first resource, the transceiver 1003 is further configured to:

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

A method of communication, comprising:

the terminal equipment determines a first resource;

when determining that uplink data transmission is performed through a second resource, the terminal device determines first indication information for indicating that the terminal device performs uplink data transmission through the second resource, and sends the first indication information to a network device through the first resource;

and the terminal equipment transmits uplink data through the second resource.
The method of claim 1, wherein the determining, by the terminal device, the first indication information comprises:

the terminal equipment receives first information sent by the network equipment, wherein the first information is used for indicating the first indication information from at least one indication information configured by the network equipment;

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

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

the terminal equipment receives second resource configuration information sent by the network equipment; 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;

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

the terminal equipment receives second resource configuration information sent by the network equipment; the second resource configuration information indicates at least one resource for uplink data transmission;

the terminal equipment receives second information sent by network equipment, wherein the second information is used for indicating the second resource from the at least one resource;

and the terminal equipment 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 via the second resource, the method further comprises:

the terminal equipment receives second resource configuration information sent by the network equipment; the second resource configuration information indicates at least one resource for uplink data transmission;

and the terminal equipment 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 wherein the terminal device determining the first indication information comprises:

and the terminal equipment takes the indication information associated with the second resource as the first indication information.
The method of claim 6, wherein the selecting, by the terminal device, one resource from the at least one resource as the second resource comprises:

the terminal equipment selects a resource corresponding to a Transport Block Size (TBS) required by the uplink data from the at least one resource as the second resource;

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

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

the terminal equipment receives first resource configuration information sent by the network equipment; the first resource configuration information indicates the first resource;

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

the terminal device takes resources corresponding to N time units which are positioned in front of a first reference position and have a time interval between an end position and the first reference position as a first preset time interval as the first resources, wherein N is an integer greater than 0; the first reference position is the starting position of the resource with the earliest starting position in the at least one resource;

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

the terminal equipment receives third information sent by the network equipment, wherein the third information indicates a second preset time interval;

the terminal device takes the resources corresponding to N time units which are positioned in front of a second reference position and have a time interval between an end position and the second reference position as a second preset time interval as the first resources, wherein N is an integer greater than 0; the second reference position is a starting position of the second resource.
The method according to any one of claims 1 to 12, wherein the first indication information is one or a combination of at least one of the following:

a ZC sequence; a Gold sequence; an M sequence; demodulating a reference signal (DMRS) sequence; a 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:

an identity of the terminal device; an MCS for the uplink data; TBS of the uplink data; the number of repetitions of the uplink data.
A method of communication, comprising:

when network equipment receives first indication information which is sent by terminal equipment and used for indicating the terminal equipment to carry out uplink data transmission through a second resource in a first resource, the network equipment determines that the terminal equipment carries out uplink data transmission through the second resource according to the first indication information;

and the network equipment receives the uplink data sent by the terminal equipment in the second resource and demodulates the received uplink data.
The method of 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:

and the network equipment sends second resource configuration information to the terminal equipment, wherein the second resource configuration information indicates at least one resource used for uplink data transmission.
The method of 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:

and the network equipment sends second information to the terminal equipment, wherein the second information is used for indicating the second resource from the at least one resource.
The method of claim 17, wherein the second information further indicates a resource type of the second resource; the resource types comprise exclusive resources and shared resources; the exclusive resource is a resource allocated to one terminal device exclusively in the cell of the network device, and the shared resource is a resource allocated to at least two terminal devices in the cell of the network device.
A communications apparatus, comprising:

a processing unit for determining a first resource; when determining that uplink data transmission is performed through a second resource, determining first indication information for indicating a terminal device to perform uplink data transmission through the second resource;

a transceiver unit, configured to send the first indication information to a network device through the first resource; and performing uplink data transmission through the second resource.
The apparatus of claim 19,

the transceiver unit is further configured to: receiving first information sent by the network equipment, wherein the first information is used for indicating the first indication information from at least one indication information configured by the network equipment;

the processing unit is specifically configured to: determining the first indication information from the at least one indication information according to the first information.
The apparatus of claim 20, wherein the transceiver unit, prior to the uplink data transmission via the second resource, is further configured to:

receiving second resource configuration information sent by the network equipment; 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, as the second resource, a resource associated with the first indication information in the at least one resource.
The apparatus according to any of claims 19 to 21, wherein before the transceiver unit performs uplink data transmission via the second resource, the transceiver unit is further configured to:

receiving second resource configuration information sent by the network equipment; the second resource configuration information indicates at least one resource for uplink data transmission; receiving second information sent by a network device, wherein the second information is used for indicating the second resource from the at least one resource;

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

the transceiver unit is further configured to receive second resource configuration information sent by the network device before performing uplink data transmission through the second resource; the second resource configuration information indicates at least one resource 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 of claim 23, wherein the processing unit is further configured to:

selecting a resource corresponding to a transport block size, TBS, required for the uplink data from the at least one resource as the second resource; or, a resource corresponding to the reference signal received power RSRP measured by the terminal device is selected from the at least one resource as the second resource.
The apparatus according to any of claims 19 to 24, wherein the processing unit is configured to determine the first resource and comprises:

the resources corresponding to N time units which are positioned in front of the first reference position and have a time interval between the end position and the first reference position as a first preset time interval are used as the first resources, and N is an integer greater than 0; the first reference position is the starting position of the resource with the earliest starting position in the at least one resource;

or, the resource corresponding to N time units with the first reference position as the starting position is used as the first resource, where N is an integer greater than 0.
The apparatus of any one of claims 19 to 24,

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

the processing unit is configured to determine the first resource, and includes: the resources corresponding to N time units which are located before a second reference position and have a time interval between an end position and the second reference position as the second preset time interval are used as the first resources, and N is an integer greater than 0; the second reference position is a starting position of the second resource.
A communications apparatus, comprising:

the processing unit is used for determining that the terminal equipment carries out uplink data transmission through the second resource according to first indication information when the first indication information which is sent by the terminal equipment and used for indicating the terminal equipment to carry out uplink data transmission through the second resource is received from the first resource through the transceiving unit;

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

sending second resource configuration information to the terminal equipment; the second resource configuration information indicates at least one resource for uplink data transmission.
A communications apparatus, comprising: a memory for storing instructions and a processor for executing the instructions stored by the memory, and execution of the instructions stored in the memory causes the processor to perform the method of any of claims 1 to 20.
A computer readable storage medium comprising computer readable instructions which, when read and executed by a communication apparatus, cause the communication apparatus to perform the method of any one of claims 1 to 20.