CN109729596B - Data sending and receiving method and equipment - Google Patents
Data sending and receiving method and equipment Download PDFInfo
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- CN109729596B CN109729596B CN201711027484.9A CN201711027484A CN109729596B CN 109729596 B CN109729596 B CN 109729596B CN 201711027484 A CN201711027484 A CN 201711027484A CN 109729596 B CN109729596 B CN 109729596B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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Abstract
A data sending and receiving method and equipment are used for being compatible with low time delay requirements of a uRLLC service and resource utilization rate of resources allocated to the uRLLC service. One of the data sending and receiving methods comprises: the method comprises the steps that terminal equipment receives scheduling information sent by network equipment, wherein the scheduling information comprises a resource position used for indicating the terminal equipment to transmit radio resources of an enhanced mobile bandwidth eMBB service; and in the process that the terminal equipment transmits the eMB service by using the radio resource indicated by the resource position, if the terminal equipment has a high-reliability low-delay uRLLC service to be transmitted, the terminal equipment transmits the uRLLC service to the network equipment by using a first part of radio resources in the radio resource indicated by the resource position.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a data sending method, a data receiving method, and a device.
Background
Fifth generation mobile communications (5)thGeneration, 5G) defines an ultra-reliability and Low-Latency Communications (urrllc) service, and the end-to-end transmission Latency of uplink and downlink can reach 0.5 milliseconds (ms), and is mainly applied to the fields of automatic driving, unmanned factories, Intelligent Transportation Systems (ITS) and the like in the future. Meanwhile, it is clearly proposed in the 5G standard research project (SI) that a new architecture needs to be defined to support efficient coexistence of multiple services, such as enhanced Mobile Broadband (eMBB) service and urrllc service coexistence.
In a scenario where the eMBB service and the urlllc service coexist, because the network device does not know at what time the terminal device will transmit the urlllc service, in order to ensure that the terminal has radio resources for transmitting the urlllc service when the terminal needs to transmit the urlllc service, the network device generally uses a Semi-fixed (SPS) scheduling method to schedule the radio resources for the urlllc service, so that the terminal device performs uplink transmission of the urlllc service. Specifically, referring to fig. 1, a schematic diagram of scheduling radio resources for an eMBB service and a urrllc service at a network device side is shown. Radio resources for transmitting the eMBB service scheduled by the network device for the terminal device are shown by oblique lines in fig. 1, and radio resources for transmitting the urrllc service scheduled by the network device for the terminal device are shown by dotted lines.
However, because the urrllc service is bursty, if a schedulable resource period configured for the urrllc service by the network side device is greater than the delay requirement of the urrllc service, the low delay requirement of the urrllc service cannot be met; if the configured schedulable resource period is reduced, most resources may not be used by the urrllc service, which reduces the resource utilization.
Disclosure of Invention
The embodiment of the application provides a data sending and receiving method and device, which are used for giving consideration to both the low time delay requirement of a uRLLC service and the resource utilization rate of resources allocated to the uRLLC service.
In a first aspect, the present application provides a data transmitting and receiving method. The method comprises the following steps: the method comprises the steps that terminal equipment receives scheduling information sent by network equipment, wherein the scheduling information comprises a resource position indicating that the terminal equipment is used for transmitting wireless resources of an enhanced mobile bandwidth eMBB service; in the process that the terminal equipment transmits the eMB service by using the radio resource indicated by the resource position, if the terminal equipment still has a high-reliability low-delay uRLLC service to be transmitted, the terminal equipment transmits the uRLLC service to the network equipment by using a first part of radio resources in the radio resource indicated by the resource position; and the network equipment receives an eMBB service on the radio resource indicated by the resource position, and receives a uRLLC service on the radio resource indicated by the resource position when the terminal equipment has the high-reliability low-delay uRLLC service to be transmitted.
Through the technical scheme provided by the embodiment of the application, the wireless resource for transmitting the uRLLC service does not need to be specially reserved for the terminal equipment by the network equipment, and the condition that the low time delay requirement of the uRLLC service cannot be met when the schedulable resource period configured for the uRLLC service by the network equipment is greater than the time delay requirement of the uRLLC service does not exist; if the configured schedulable resource period is reduced, most resources are not used by the urrllc service, which may reduce the resource utilization. Therefore, the low time delay requirement of the uRLLC service and the resource utilization rate of the resources allocated to the uRLLC service can be considered at the same time.
In addition, in the embodiment of the present application, the terminal device transmits the urrllc service by using the radio resource for transmitting the eMBB service, that is, the radio resource for transmitting the eMBB service and the radio resource for transmitting the urrllc service are in the same frequency band, so that the terminal device is provided with one radio frequency unit and one power amplifier, and it is possible to avoid that the radio resource for transmitting the eMBB service and the radio resource for transmitting the urrllc service are in two different frequency bands, and two radio frequency units and two power amplifiers need to be respectively provided, thereby reducing the power consumption of the terminal device and realizing the complexity.
In one possible design, the resource location of the first portion of radio resources may be pre-agreed by the terminal device and the network device. In this way, the network device may directly receive the urrllc service on the first radio resource in the radio resources indicated by the resource location, where the resource location of the first part of radio resources may be dynamically scheduled by the network device or may be predefined by a protocol.
In the embodiment of the present application, the retransmitted urlllc service and the newly transmitted urlllc service may use different radio resources, and accordingly, the network device may distinguish whether the received service is the retransmitted urlllc service or the newly transmitted urlllc service according to the different radio resources.
In one possible design, the terminal device may transmit the urlllc service and a reference signal sequence for identifying the urlllc service to the network device using a first part of radio resources of the radio resources indicated by the resource location. When the network device detects the reference signal sequence on the first part of radio resources in the radio resources indicated by the resource location, it can confirm that the service received on the first part of radio resources is the urrllc service.
In the embodiment of the application, when terminal equipment transmits the uRLLC service, the reference signal sequence is used for identifying the uRLLC service. The network device detects the reference signal sequence, for example, Blind detection (Blind detection), on the first part of radio resources in the radio resources indicated by the resource location, and if the detected reference signal sequence is a reference signal sequence for identifying the uRLLC service, it may determine that the received service is the uRLLC service.
Since the reference signal sequence is a sequence that is predefined in a wireless communication system, for example, Long Term Evolution (LTE) and New Radio (NR), and is used for channel estimation or channel demodulation, identifying the urlllc service by using the reference signal sequence can reduce system impact on the wireless communication system by the technical solution provided by the embodiment of the present application.
The Reference Signal sequence may be a Demodulation Reference Signal (DMRS), a preamble sequence, or other sequences having the same or similar structure, which is not listed herein. For example, the reference signal sequence is a DMRS, the DMRS1 may be used to identify the urrllc service, and the DMRS1 may be used to identify the eMBB service, and of course, the eMBB service may also be identified without using identification information, which is not limited herein.
In one possible design, the terminal device may further transmit control information of the urrllc service to the network device by using a second part of radio resources in the radio resources indicated by the resource location, where the control information includes a modulation and coding scheme of the urrllc service; and the network equipment receives the control information of the uRLLC service transmitted by the terminal equipment on a second part of radio resources in the radio resources indicated by the resource positions, and demodulates and decodes the received uRLLC service based on the modulation and coding mode of the uRLLC service.
In this embodiment of the present application, when the terminal device has the urlllc service that needs to be transmitted, the terminal device transmits using the radio resource for transmitting the eMBB service, and does not send a scheduling request to the network device, and the network device does not know the modulation and coding scheme used by the terminal device for transmitting the urlllc service, so the terminal device can send the control information including the modulation and coding scheme of the urlllc service to the network device using the radio resource of the eMBB service.
In this embodiment of the application, the control information may further include one or more of a data volume of the uRLLC service, service information used to indicate whether the uRLLC service is transmitted for the first time, service information used to indicate whether the uRLLC service is transmitted repeatedly, and retransmission information used to indicate the uRLLC service to use when the uRLLC service is transmitted repeatedly, or further include other information, which is not illustrated herein.
In one possible design, the terminal device may further transmit, to the network device, indication information using a third part of the radio resources indicated by the resource location, where the indication information is used to indicate control information of the urrllc service, where the control information includes a resource location of the first part of the radio resources, and the network device receives the indication information from the third part of the radio resources indicated by the resource location, and receives the urrllc service on the first part of the radio resources according to the resource location of the first part of the radio resources included in the control information, where the resource location of the third part of the radio resources may be pre-agreed by the terminal device and the network device, for example, dynamically scheduled by the network device or specified by a standard protocol.
In the embodiment of the present application, the terminal device transmits, on a third part of radio resources in the radio resources indicated by the resource location, indication information of control information for indicating the urrllc service, where the control information includes the resource location of the first part of radio resources, so as to avoid identifying the urrllc service using a reference signal sequence, and further avoid that, when the reference signal sequence is insufficient, it cannot be guaranteed that different services are identified using different reference signal sequences, and the length of the reference signal sequence needs to be increased, thereby increasing the problem of pilot overhead.
In this embodiment of the present application, the indication information for indicating the control information of the uRLLC service may be the control information itself, or may be identification information generated based on the control information, for example, a sequence, and different sequences identify different control information, that is, the control information of the uRLLC service may be transmitted in an explicit manner or may be transmitted in an implicit manner, which is not limited herein.
In the embodiment of the present application, in order to improve the correctness of the network device receiving the indication information of the control information for indicating the uRLLC service, the terminal device may repeatedly transmit the indication information of the control information for indicating the uRLLC service, and for the transmission mode of the repeated transmission, for example, the number of times of the repeated transmission, the resource location of the radio resource for the repeated transmission, and the like, may be dynamically scheduled by the network device or specified by a standard protocol.
In one possible design, the control information further includes one or more of the following information: the data volume of the uRLLC service, the modulation and coding mode of the uRLLC service, service information used for indicating whether the uRLLC service is transmitted for the first time, number information used for indicating a hybrid automatic repeat request (HARQ) process of the uRLLC service, service information used for indicating whether the uRLLC service is transmitted repeatedly, and repeat transmission information used for indicating the uRLLC service when the uRLLC service is the repeatedly transmitted service information.
The network device may determine whether the currently received urrllc service is a first transmission service or number information indicating a hybrid automatic repeat request HARQ process of the urrllc service, the network device may determine a number of a process used by the terminal device to process the urrllc service or service information indicating whether the urrllc service is a repeat transmission service, the network device may determine whether the currently received urrllc service is a repeat transmission service or repeat transmission information used by the urrllc service when the urrllc service is the repeat transmission service or the service information indicating the use of the urrllc service when the urrllc service is the repeat transmission service, for example, the number of times of retransmission and the radio resource used by the retransmission, the network device receives the retransmitted urlllc service according to the retransmission information that can indicate the use of the urlllc service.
In a second aspect, an embodiment of the present application provides a terminal device, where the terminal device has a function of implementing a behavior of the terminal device in the method in the first aspect. The functions can be realized by hardware, and corresponding software can be executed by hardware, and the hardware or the software comprises one or more modules corresponding to the functions.
In one possible design, the terminal device may be configured to include a receiver, a transmitter, and a processor. The processor is configured to enable the terminal device to perform the corresponding functions in the method of the first aspect. The receiver and transmitter are for supporting communication between the terminal device and the network device, receiving and/or transmitting information or instructions as referred to in the method of the first aspect above. The terminal device may also include a memory coupled to the processor that retains the necessary instructions and data.
In a third aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing a behavior of the network device in the method in the first aspect. The functions can be realized by hardware, and corresponding software can be executed by hardware, and the hardware or the software comprises one or more modules corresponding to the functions.
In one possible design, a network device may be configured to include a transmitter, a receiver, and a processor. The processor is configured to support the network device to perform the corresponding functions in the method of the first aspect. The transmitter and receiver are for supporting communication between the terminal device and the network device, transmitting and/or receiving information or instructions as referred to in the method of the first aspect above. The network device may also include a memory coupled to the processor that holds the necessary instructions and data.
In a fourth aspect, an embodiment of the present application provides a communication system, where the communication system includes the terminal device in the second aspect and the network device in the third aspect.
In a fifth aspect, an embodiment of the present application provides a computer storage medium, which stores computer software instructions for executing the functions of any one of the designs of the first aspect and the first aspect, or contains a program for executing the method of any one of the designs of the first aspect and the first aspect.
In a sixth aspect, the present application provides a computer program product, which when being invoked by a computer, can cause the computer to execute the method of any one of the first aspect and the first aspect.
In a seventh aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor, and is configured to support a terminal device or a network device to implement the method according to the first aspect, for example, to generate or process data and/or information involved in the method according to the first aspect. In one possible design, the system-on-chip further includes a memory for storing necessary program instructions and data of the terminal device or the network device, and the processor in the system-on-chip may call the program instructions and data stored in the memory in the system-on-chip to enable the system-on-chip to implement the functions of the terminal device or the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.
Drawings
Fig. 1 is a schematic diagram illustrating a network device allocating radio resources for an eMBB service and a urrllc service in the prior art;
FIG. 2 is a schematic diagram of a time-frequency resource structure in the prior art;
fig. 3 is a schematic view of an application scenario provided in an embodiment of the present application;
fig. 4 is a flowchart of a method for transmitting and receiving data according to an embodiment of the present application;
fig. 5 is a schematic diagram of radio resources allocated by a network device for an eMBB service and a urrllc service on different frequency bands in the prior art;
fig. 6 is a schematic diagram illustrating transmission of urrllc service on radio resources of an eMBB service according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of another terminal device provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of another network device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.
The technical scheme described in the embodiment of the application can be used for the fifth generation mobile communication technology (5G) and can also be used for the next generation mobile communication system.
Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.
(1) A network device, e.g., including a base station (e.g., access point), can refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices. The base station may be configured to interconvert received air frames and IP packets as a router between the terminal device and the rest of the access network, which may include an IP network. The base station may also coordinate management of attributes for the air interface. For example, the base station may include an evolved Node B (NodeB, eNB, or e-NodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), or may also include a next generation Node B (gNB) in a 5G system, which is not limited in the embodiments of the present application.
(2) Terminal equipment, including devices that provide voice and/or data connectivity to a user, may include, for example, handheld devices with wireless connection capability or processing devices connected to wireless modems. The terminal device may communicate with a core Network via a Radio Access Network (RAN), and exchange voice and/or data with the RAN. The Terminal Device may include a User Equipment (UE), a wireless Terminal Device, a Mobile Terminal Device, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (AP), a Remote Terminal Device (Remote Terminal), an Access Terminal Device (Access Terminal), a User Terminal Device (User Terminal), a User Agent (User Agent), or a User Equipment (User Device), etc. For example, mobile phones (or so-called "cellular" phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included or vehicle-mounted mobile devices, smart wearable devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), smart watches, smart helmets, smart glasses, smart bracelets, and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Including, for example, bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and other information sensing devices.
(3) The Radio Resource (Radio Resource) of the communication is in the form of time-frequency two dimensions. For example, for the LTE system, the Radio resources of the uplink and the downlink are divided in the time direction by Radio Frame (Radio Frame), each Radio Frame has a length of 10 milliseconds (ms), and includes 10 subframes (sub frames) with a length of 1ms, and each subframe includes two slots with a length of 0.5 ms. As shown in fig. 2, each slot may include 6 or 7 Orthogonal Frequency Division Multiplexing (OFDM) according to a Cyclic Prefix (CP) configuration.
In the frequency direction, the radio resources are divided in units of subcarriers (subcarriers), and specifically, in communication, the minimum unit of frequency domain Resource allocation is a Resource Block (RB), which corresponds to one Physical Resource Block (PRB) of the physical resources. One PRB includes 12 Sub-carriers (Sub-carriers) in the frequency domain, corresponding to one slot of the time domain.
(4) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.
Please refer to fig. 3, which is an application scenario of the embodiment of the present application. In fig. 3, a base station and a terminal device located in a coverage area of the base station are included, the terminal device sends a scheduling request to the base station, the base station sends scheduling information to the terminal device, and the terminal device transmits data to the base station according to a radio resource indicated by a resource location of the radio resource included in the scheduling information.
In the following description, the technical solution provided by the embodiment of the present application is applied to the application scenario shown in fig. 3 as an example, and a network device is a base station as an example.
Referring to fig. 4, an embodiment of the present application provides a data sending and receiving method, where a flow of the method is described as follows:
s41: the terminal equipment sends a scheduling request to the base station, wherein the scheduling request comprises a request for the base station to schedule wireless resources for transmitting eMBB services; in this embodiment, when there is an eMBB service that needs to be transmitted, a terminal device sends a Scheduling Request (SR) to a base station to Request the base station to schedule a radio resource for transmitting the eMBB service.
It should be noted that the terminal device may transmit the SR through a Physical Uplink Control Channel (PUCCH) according to a certain period to indicate whether the base station has a resource requirement. For example, when the terminal device has a requirement for transmitting a service, the SR is set to 1, and when there is no requirement for transmitting a service, the SR is set to zero.
S42: the base station sends scheduling information to the terminal equipment, wherein the scheduling information comprises a resource position used for indicating the terminal equipment to transmit radio resources of an eMBB service; continuing the above description, after receiving the SR, the base station transmits an uplink scheduling grant (UL grant) to the terminal device, and first configures a radio resource capable of transmitting a Buffer State Report (BSR) for the terminal device, where the BSR is used to indicate a local Buffer data amount of the terminal device. After receiving the BSR transmitted by the terminal device, the base station configures radio resources for transmitting the eMBB service for the terminal device according to the BSR transmitted by the terminal device and the existing radio resources of the base station. For example, a plurality of RBs in the frequency domain, e.g., 12 RBs, each RB including 12 subcarriers, 7 OFDM in the time domain, as shown by diagonal lines in fig. 2.
After configuring radio resources for transmitting eMB services for the terminal equipment, the base station sends scheduling information to the terminal equipment, wherein the scheduling information comprises positions, including frequency domain positions and time domain positions, of the radio resources for indicating the terminal equipment to transmit the eMB services. In addition, the scheduling information may further include a modulation and coding scheme for transmitting the eMBB service, a new service indication, a power control indication, a precoding matrix indication, a Hybrid Automatic Repeat Request (HARQ) process indication, and the like.
In this embodiment, there may be multiple ways for the base station to transmit the scheduling information to the terminal device, for example, the scheduling information is transmitted to the terminal device through Radio Resource Control (RRC) signaling, Media Access Control (MAC) signaling, or Physical Downlink Control Channel (PDCCH) and other air interface signaling.
S43: in the process that the terminal equipment transmits the eMBB service by using the radio resource indicated by the resource position, if the terminal equipment has the uRLLC service to be transmitted, the first part of radio resource in the radio resource indicated by the resource position is used for transmitting the uRLLC service; in the embodiment of the present application, a base station transmits scheduling information through a PDCCH as an example. And the PDCCH is generally located in the first 1-3 OFDM symbols of each subframe, so that the terminal device can acquire the resource location of the radio resource allocated by the base station for transmitting the eMBB by detecting the PDCCH, for example, blind detection.
Taking 12 RBs in the frequency domain and 7 OFDM in the time domain shown in fig. 2 as an example, the terminal device converts data of the eMBB service into a bit form, and encodes the bit to obtain a coded bit; modulating the scrambled coded bits to obtain complex-valued modulation symbols; then mapping the complex-valued modulation symbols to layers; remapping the layer mapped output to each antenna port, wherein the process of mapping the layer mapped output to each antenna port is a precoding process; and mapping the precoded output onto the resource elements (k, l) starting with the first complex-valued modulation symbol of the output. The mapping order on each antenna port is: and starting from the first time slot of the first subframe, mapping on each RB in an ascending order of k, and then mapping in an ascending order of l, wherein k represents the number of subcarriers, and l represents the number of OFDM symbols.
When the terminal equipment maps the complex value modulation symbol corresponding to the eMB service to 1-12 RBs of the 3 rd OFDM symbol, the terminal equipment also has the uRLLC service to be transmitted, and the transmission rate of the eMB service can be reduced or the transmission of the eMB service can be stopped on the premise of ensuring the low delay requirement of the uRLLC service.
Taking stopping transmission of the eMBB service as an example, in this case, the terminal device suspends mapping of the complex-valued modulation symbol corresponding to the eMBB service, and maps the complex-valued modulation symbol obtained after coding, modulating, mapping and precoding the urrllc service to 1-12 RBs on the subsequent OFDM of the 3 rd OFDM, for example, 1-12 RBs of the 4 th OFDM symbol, according to the mapping manner of the eMBB service. If the mapping of the uRLLC service can be completed in 1-12 RBs of the 4 th OFDM symbol, the other parts of the eMBB service are mapped continuously on 1-12 RBs of each of the 5 th-7 th OFDM symbols; if the uRLLC service is not mapped on 1-12 RBs of the 4 th OFDM symbol, the mapping is required to be continued on 1-12 RBs of the next OFDM symbol until the uRLLC service is mapped.
Taking reduction of the transmission rate of the eMBB service as an example, in this case, the terminal device maps the urrllc service to 1 st to 7 th RBs of each of the 4 th to 7 th OFDM symbols according to a mapping manner of the eMBB service, maps the eMBB service to 8 th to 12 th RBs of each of the 4 th to 7 th OFDM symbols, or uses another mapping manner, which is not limited in this embodiment.
In this embodiment, during the procedure of transmitting the eMBB service on the radio resource indicated by the resource location, the terminal device determines whether there is a urrllc service to be transmitted, for example, if the terminal device detects that a web page related to the urrllc service is opened, it determines that the urrllc service is transmitted during the procedure of transmitting the eMBB service, and reports indication information indicating a probability that the terminal device will transmit the urrllc service during the procedure of transmitting the eMBB service to the base station, so that the base station receives the urrllc service transmitted by the terminal device using the radio resource of the eMBB service on the radio resource indicated by the resource location according to the indication information.
As can be seen from the foregoing embodiments, in the embodiment of the present application, in the process of transmitting the eMBB service by the terminal device, if the terminal device further has the urrllc service to be transmitted, the urrllc service is transmitted by using the radio resource for transmitting the eMBB service, which can prevent the base station from reserving the radio resource for transmitting the urrllc service specially for the terminal device, and also avoid that the low-delay requirement of the urrllc service cannot be met if the schedulable resource period configured for the urrllc service at the base station is greater than the delay requirement of the urrllc service; if the configured schedulable resource period is reduced, most resources may not be used by the urrllc service, and the problem of reducing the resource utilization rate may be caused, so that the low delay requirement of the urrllc service and the resource utilization rate of the resources allocated to the urrllc service can be considered at the same time. Therefore, the problem that in the prior art, when a base station specially reserves radio resources for transmitting the urlllc service for terminal equipment, in order to avoid mutual interference between a plurality of terminal equipment due to the fact that the same radio resources are used for transmitting the service is solved, the base station can reserve enough radio resources for transmitting the urlllc service so as to reduce the chance that different terminal equipment uses the same radio resources. However, if the base station reserves more wireless resources and there is not enough urrllc services to be transmitted, the resource utilization rate is reduced.
In the embodiment of the present application, the terminal device transmits the urrllc service by using the radio resource for transmitting the eMBB service, that is, the radio resource for transmitting the eMBB service and the radio resource for transmitting the urrllc service are in the same frequency band, so that the terminal device is only provided with one radio frequency unit and one power amplifier, thereby avoiding that the radio resource for transmitting the eMBB service and the radio resource for transmitting the urrllc service are in two different frequency bands, for example, the radio resource allocated to the eMBB service and the radio resource allocated to the urrllc service are in different frequency bands as shown in fig. 5, where it should be noted that the radio resources allocated to the eMBB service and the urrllc service are in the same frequency band, and when the radio resource in the same frequency band is not enough to be allocated to the eMBB service and the urrllc service, the radio resources in different frequency bands are allocated to the eMBB service and the urrllc service, so that the terminal device needs to be provided with two radio frequency units and two power amplifiers, to transport the eMBB traffic and urrllc traffic, respectively. Therefore, the scheme provided by the embodiment of the application can reduce the power consumption and the implementation complexity of the terminal equipment.
In this embodiment of the present application, since the terminal device transmits the eMBB service and the urrllc service by using the radio resource of the eMBB service, when receiving the service transmitted by using the radio resource indicated by the resource location, the base station may not be able to identify whether the currently received service is the eMBB service or the urrllc service. For this purpose, the embodiments of the present application provide several ways including, but not limited to, the following ways in which the terminal device transmits the eMBB service and the urrllc service using the radio resource indicated by the resource location, which are described separately below.
1. And the terminal equipment transmits the uRLLC service and a reference signal sequence for identifying the uRLLC service to the base station by using the first part of the radio resources indicated by the resource position.
In the embodiment of the present application, the reference signal sequence may be a DMRS, a preamble sequence, or another sequence having the same structure, which is not illustrated herein. The reference signal sequence is a sequence that is predefined in a wireless communication system, for example, Long Term Evolution (LTE) and New Radio (NR), and is used for channel estimation or channel demodulation, so that the technical scheme provided by the embodiment of the present invention can reduce system impact on the wireless communication system by using the reference signal sequence to identify the urrllc service, and further increase the compatibility of the technical scheme provided by the embodiment of the present invention applied to the wireless communication system. The reference signal sequence may be transmitted to the base station together with the urrllc service, or may be transmitted to the base station after being combined with the urrllc service, which is not limited in this embodiment of the application.
In the embodiment of the application, taking the reference signal sequence for identifying the urrllc service as DMRS1 as an example, the reference signal sequence may not be used for identifying the eMBB service, and the reference signal sequence DMRS2 different from the DMRS1 may also be used for identifying the eMBB service.
In this embodiment of the present application, the eMBB service may also be identified by using a reference signal sequence, for example, DMRS, and the urrllc service is not identified, as long as the base station can distinguish whether the currently received eMBB service or the urrllc service is the eMBB service or the urrllc service when receiving the service on the radio resource indicated by the resource location.
2. The terminal device transmits the urrllc service on a first portion of radio resources in the radio resources indicated by the resource location. The first part of radio resources may be predefined by the base station and the terminal device, e.g. dynamically scheduled by the base station, or specified by a standard protocol. In this way, the base station can receive uRLLLC traffic directly on the first part of the radio resources.
In this embodiment, the terminal device transmits the urlllc service using the first part of radio resources, and transmits the eMBB service using the other part of radio resources except the first part of radio resources on the radio indicated by the resource location. No matter the terminal equipment has no uRLLC service transmission, the first part of wireless resources are reserved all the time so as to be capable of transmitting when the terminal equipment has uRLLC service to be transmitted, and further guarantee the requirement of the uRLLC service on low time delay.
In the embodiment of the present application, the terminal device and the base station may also agree in advance on a resource location of a radio resource used for retransmitting the urrllc service. The resource position of the radio resource used for retransmitting the uRLLC service is different from the resource position of the radio resource used for newly transmitting the uRLLC service.
For the above two ways of transmitting the urlllc service 1 and 2, since the terminal device transmits the urlllc service by using the radio resource of the eMBB service and does not send a scheduling request to the base station, the base station does not know the modulation and coding way of the terminal device for transmitting the urlllc service, and the base station cannot demodulate and decode the received urlllc service. Therefore, the terminal device further needs to transmit control information of the urrllc service to the base station by using a second part of radio resources in the radio resources indicated by the resource location, where the control information includes a modulation and coding scheme of the urrllc service.
In this embodiment, the control information of the uRLLC service may further include a data size of the uRLLC service, service information used to indicate whether the uRLLC service is transmitted for the first time, number information used to indicate an HARQ process of the uRLLC service, service information used to indicate whether the uRLLC service is transmitted repeatedly, or repeat transmission information used to indicate the uRLLC service when the urll service is transmitted repeatedly, for example, the number of times of repeat transmission, a radio resource used in repeat transmission, and the like. In order to improve the accuracy of the base station receiving the control information of the uRLLC service, the terminal device may repeatedly transmit the control information of the uRLLC service, and the transmission manner of the repeated transmission, such as the number of times of the repeated transmission, the transmission format, the modulation and coding scheme used, or the resource location of the radio resource of the repeated transmission, may also be predetermined by the base station and the terminal device, for example, dynamically scheduled by the base station or specified by a standard protocol.
It should be noted here that, in the transmission scheme 2, the first part of radio resources used for transmitting the urrllc service is predetermined by the base station and the terminal device, and therefore, for example, the control information of the urrllc service, such as the data volume of the urrllc service, the modulation and coding scheme of the urrllc service, the service information used for indicating whether the urrllc service is transmitted for the first time, the service information used for indicating whether the urrllc service is transmitted repeatedly, or the retransmission information used for indicating the use of the urrllc service when the urrllc service is transmitted repeatedly may also be predetermined by the base station and the terminal device. Therefore, when all the information included in the control information is pre-defined by the base station and the terminal equipment, the terminal equipment does not need to transmit the control information to the base station; if part of the information in the control information is predetermined by the base station and the terminal device, for example, the modulation and coding scheme of the urrllc service is predetermined by the base station and the terminal device, the terminal device transmits only information that is not predetermined in the control information, for example, the data size of the urrllc service, the service information for indicating whether the urrllc service is transmitted for the first time, the number information for indicating the HARQ process of the urrllc service, the service information for indicating whether the urrllc service is transmitted repeatedly, or the repeat transmission information for indicating the use of the urrllc service when the urrllc service is transmitted repeatedly.
In addition, in the embodiment of the present application, in comparison with the transmission mode 1, the transmission mode 2 avoids using a reference signal sequence to identify the urrllc service, and further avoids the problem that when the reference signal sequence is insufficient, it cannot be guaranteed that different services use different reference signal sequences to identify, the length of the reference signal sequence needs to be increased, and thus the pilot overhead is increased.
3. Referring to fig. 6, the terminal device transmits the urrllc service to the base station by using a first part of radio resources in the radio resources indicated by the resource location, and transmits indication information of control information for indicating the urrllc service to the base station by using a third part of radio resources in the radio resources indicated by the resource location, where the control information may carry information for indicating the location of the first part of radio resources, and the third part of radio resources may be pre-agreed by the base station and the terminal device, so that the base station may determine a specific location of the first part of radio resources according to the control information received on the third part of radio resources, and then receive the urrllc service transmitted by the terminal device on the first part of radio resources.
In this embodiment of the present application, the indication information for indicating the control information of the uRLLC service may be the control information of the uRLLC service itself, that is, the control information of the uRLLC service is explicitly transmitted; the indication information for indicating the control information of the uRLLC service may also be a sequence, that is, the control information of the uRLLC service is implicitly transmitted, and different sequences identify different control information.
In the embodiment of the present application, the resource location of the third part of radio resources may be dynamically scheduled by the base station, or may be specified by a standard protocol. And when the terminal equipment does not have the uRLLC service to be transmitted, the third part of the radio resources do not transmit the control information of the uRLLC service.
In this embodiment of the application, the control information of the uRLLC service may further include a data size of the uRLLC service, a modulation and coding scheme of the uRLLC service, service information used to indicate whether the uRLLC service is transmitted for the first time, number information used to indicate an HARQ process of the uRLLC service, service information used to indicate whether the urll service is transmitted repeatedly, or retransmission information used to indicate that the uRLLC service is used when the urll service is transmitted repeatedly, for example, the number of times of repeated transmission, a radio resource used during repeated transmission, and the like.
When the control information in the transmission schemes 1, 2, and 3 includes the number information of the HARQ process of the uRLLC service, the terminal device may determine the number of the HARQ process of the uRLLC service in various ways, which is described below. It is assumed that the terminal device maintains one HARQ entity, and one HARQ entity includes multiple HARQ processes, for example, 8 HARQ processes, which are numbered 1 to 8.
In a first mode, the terminal equipment can randomly select an idle HARQ process from 8 HARQ processes as the HARQ process of the uRLLC service;
according to the second mode, according to the preset rules, a part of the 8 HARQ processes is used as the HARQ process of the eMBB service, and a part of the HARQ processes is used as the HARQ process of the urlllc service, for example, 6 HARQ processes numbered 1-6 in the 8 HARQ processes are used as the HARQ process of the eMBB service, two HARQ processes numbered 7 and 8 are used as the HARQ processes of the urlllc service, and the terminal equipment can randomly select one idle HARQ process from the 7 and 8 HARQ processes as the HARQ process of the urlllc service;
in a third method, all of 8 HARQ processes are taken as HARQ processes of the eMBB service, while some of the 8 HARQ processes are preferentially taken as HARQ processes of the eMBB service and other some HARQ processes are taken as HARQ processes of the urlllc service, for example, all of the 8 HARQ processes can be taken as HARQ processes of the eMBB service, but 6 HARQ processes numbered 1-6 are preferentially taken as HARQ processes of the eMBB service, and two HARQ processes numbered 7 and 8 are taken as HARQ processes of the urlllc service, and the terminal device can randomly select an idle HARQ process from the two HARQ processes numbered 7 and 8 as an HARQ process of the urlllc service.
In the embodiment of the present application, regarding the three different transmission modes 1, 2, and 3 of the terminal device, the base station also has three different receiving modes, which are described below.
Firstly, aiming at a transmission mode 1, a base station detects a reference signal sequence transmitted on a wireless resource indicated by a resource position; and if the reference signal sequence is detected to be the reference signal sequence used for identifying the uRLLC service, confirming that the received service is the uRLLC service. In the embodiment of the present application, the base station performs detection, for example, blind detection, on the reference signal sequence transmitted on the radio resource indicated by the resource location.
And when the detected reference signal sequence is the reference signal sequence used for identifying the uRLLC service, determining that the currently received service is the uRLLC service, and when the detected reference signal sequence is the reference signal sequence used for identifying the eMBB service, determining that the currently received service is the eMBB service. For example, if the detected reference signal sequence is DMRS1, it indicates that the currently received service is uRLLC service, and if the detected reference signal sequence is DMRS2, it indicates that the currently received service is eMBB service;
or when the detected reference signal sequence is the reference signal sequence used for identifying the uRLLC service, determining that the currently received service is the uRLLC service, and when the reference signal sequence is not detected, determining that the currently received service is the eMBB service;
or when the detected reference signal sequence is the reference signal sequence used for identifying the eMB service, determining that the currently received service is the eMB service, and when the reference signal sequence is not detected, determining that the currently received service is the uRLLC service.
Secondly, for the transmission mode 2, the base station receives the uRLLC service on the first part of radio resources.
For the transmission method 1 and the transmission method 2, the terminal device transmits the eMBB service and the uRLLC service to the base station by using the radio resource for transmitting the eMBB service, and the terminal device does not transmit scheduling information for requesting the base station to allocate the radio resource for transmitting the uRLLC service to the base station, so that the base station cannot know the modulation and coding method adopted by the terminal device for transmitting the uRLLC service. Therefore, the base station may receive the control information of the uRLLC service transmitted by the terminal device, and demodulate and decode the received uRLLC service according to the modulation and coding manner of the uRLLC service included in the control information.
In this embodiment, the control information of the uRLLC service may further include a data volume of the uRLLC service, service information used to indicate whether the uRLLC service is transmitted for the first time, number information used to indicate an HARQ process of the uRLLC service, service information used to indicate whether the uRLLC service is transmitted repeatedly, and repeat transmission information used to indicate the uRLLC service when the uRLLC service is transmitted repeatedly. In this way, the base station may determine whether the currently received urrllc service is a repeatedly transmitted urrllc service according to the service information included in the control information and used for indicating whether the urrllc service is repeatedly transmitted, and when the received urrllc service is the repeatedly transmitted service information, repeatedly receive the urrllc service transmitted by the terminal device according to the repeated transmission information used for indicating the urrllc service, for example, the number of times of repeated transmission and the resource location of the radio resource used for repeated transmission.
Here, it should be noted that, in the second receiving method, when the control information of the urrllc service includes, but is not limited to, a modulation and coding method of the urrllc service, a data amount of the urrllc service, service information indicating whether the urrllc service is transmitted for the first time, number information indicating an HARQ process of the urrllc service, service information indicating whether the urrllc service is transmitted repeatedly, or retransmission information indicating that the urrllc service is used when the urrllc service is transmitted repeatedly, is predefined by the base station and the terminal device, the base station may demodulate and decode the received urrllc service according to the predefined modulation and coding method of the urrllc service, and receive the urrllc service according to other predefined information, for example, when the urrllc service is transmitted repeatedly, the radio resource for retransmission is received according to the predefined number of repetitions, receiving uRLLC service repeatedly transmitted by terminal equipment; when the control information of the urrllc service includes, for example, the modulation and coding scheme of the urrllc service is predefined by the base station and the terminal device, the base station directly demodulates and decodes the received urrllc service according to the predefined modulation and coding scheme, and for other information included in the control information, the other information needs to be received on the second part of radio resources in the radio resources indicated by the resource location.
And thirdly, for the transmission mode 3, the base station receives indication information of the control information for indicating the uRLLC service on a third part of radio resources in the radio resources indicated by the resource positions, and receives the uRLLC service on the first part of radio resources according to the resource positions of the first part of radio resources included by the control information.
In the third transmission mode, the third part of radio resources may be pre-agreed by the base station and the terminal device, for example, dynamically scheduled by the base station, or specified by a standard protocol. Thus, the base station can directly receive indication information for indicating the control information of the uRLLC service on the third part of radio resources. Specifically, the base station may determine whether the third portion of radio resources has indication information indicating control information of the urrllc service, for example, when the received power is greater than a preset threshold, the base station indicates that the third portion of radio resources transmits the control information indicating the urrllc service. And when the received power is lower than the preset threshold value, the control information for indicating the uRLLC service is not displayed on the third part of the radio resources.
In the third transmission mode, when the indication information is the control information of the uRLLC service itself, the base station acquires the resource location of the first part of radio resources from the control information, and then receives the uRLLC service on the first part of radio resources. When the indication information is a sequence of control information for identifying the urll lc service, the base station first determines the control information according to a corresponding relationship between the sequence and the control information, and obtains a resource location of a first part of radio resources from the control information, and receives the urll lc service on the first part of radio resources.
The control information in the third transmission mode may further include one or more of the following information: the data volume of the uRLLC service, the modulation and coding mode of the uRLLC service, service information used for indicating whether the uRLLC service is transmitted for the first time, number information used for indicating the HARQ process of the uRLLC service, service information used for indicating whether the uRLLC service is transmitted repeatedly, and repeated transmission information used for indicating the uRLLC service when the uRLLC service is transmitted repeatedly. For example, when the modulation and coding mode of the uRLLC service is also included, the base station demodulates and decodes the uRLLC service according to the demodulation and decoding mode corresponding to the modulation and coding mode of the uRLLC service; or when the base station further comprises repeated transmission information used for indicating the use of the uRLLC service when the uRLLC service is the repeatedly transmitted service information, the base station receives the uRLLC service repeatedly transmitted by the terminal equipment according to the repeated transmission information, such as the repeated transmission times, the resource position of the wireless resource used for repeated transmission and the like.
The following describes the apparatus provided by the embodiments of the present application with reference to the drawings.
Fig. 7 shows a schematic structural diagram of a terminal device 700. The terminal device 700 may include a receiving unit 701 and a sending unit 702, where the receiving unit 701 may be configured to execute S42 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described in the embodiments of the present application. The sending unit 702 may be configured to perform S43 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described in embodiments of this application. All relevant contents of each step related to the above method embodiment are the same as the functional description that can be cited to the corresponding functional module, and are not described herein again.
Fig. 8 shows a schematic structural diagram of a network device 800. The network device 800 may include a sending unit 801 and a receiving unit 802, where the sending unit 801 may be configured to execute S41 in the embodiment shown in fig. 4 and/or other processes for supporting the technology described in the embodiment of the present application. The receiving unit 802 may be configured to receive the data sent by S43 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described in the embodiments of this application. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
Fig. 9 shows a schematic structural diagram of a terminal device 900. The terminal device 900 may comprise a receiver 901, a processor 902, a transmitter 903, the receiver 901 and the transmitter 903 being coupled to the processor 902. The processor 902 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), one or more Integrated circuits for controlling program execution, a baseband chip, or the like.
By programming the processor 902, the codes corresponding to the obtained data sending and receiving methods are solidified in the chip, so that the chip can execute the data sending and receiving methods provided by the embodiment shown in fig. 4 when running, and how to program the processor 902 is a technique known by those skilled in the art, which is not described herein again.
Fig. 10 shows a schematic structural diagram of a network device 1000. The network device 1000 may include a processor 1001, a transmitter 1002, a receiver 1003, the transmitter 1002 and the receiver 1003 being respectively coupled to the processor 1001. The processor 1001 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), one or more Integrated circuits for controlling program execution, a baseband chip, or the like.
The network device 1000 may also include a memory 1004, the memory 1004 being coupled to the processor 1001. The number of the memories may be one or more, and the memories may be Read Only Memories (ROMs), Random Access Memories (RAMs), or magnetic disk memories, etc.
By programming the processor 1001, the codes corresponding to the data sending and receiving methods are solidified in the chip, so that the chip can execute the data sending and receiving methods provided by the embodiment shown in fig. 4 when running, and how to program the processor 1001 is a technique known by those skilled in the art, and is not described herein again.
The present application further provides a computer storage medium, which may include a memory, where the memory may store a program, and the program includes all the steps executed by the terminal device or all the steps executed by the network device, which are described in the method embodiment shown in fig. 4.
Embodiments of the present application further provide a computer program product, which, when being invoked by a computer, can enable the computer to execute the method provided by the method embodiment shown in fig. 4.
Embodiments of the present application further provide a chip system, where the chip system includes a processor, and is configured to support a terminal device or a network device to implement the method provided in the embodiment shown in fig. 4, for example, to generate or process data and/or information involved in the method provided in the embodiment shown in fig. 4. The chip system also comprises a memory, the memory is used for storing necessary program instructions and data of terminal equipment or network equipment, and a processor in the chip system can call the program instructions and data stored in the memory in the chip system, so that the chip system can realize the functions of the terminal equipment or the network equipment. The chip system may be formed by a chip, or may include a chip and other discrete devices.
An embodiment of the present application further provides a communication system, which includes the terminal device 900 provided in the embodiment shown in fig. 9 and the network device 1000 provided in the embodiment shown in fig. 10.
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, CD-ROM, 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.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions 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 spirit and 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 (21)
1. A data transmission method, comprising:
the method comprises the steps that terminal equipment receives scheduling information sent by network equipment, wherein the scheduling information comprises a resource position used for indicating the terminal equipment to transmit radio resources of an enhanced mobile bandwidth eMBB service;
in the process that the terminal equipment transmits the eMB service by using the radio resource indicated by the resource position, if the terminal equipment has a high-reliability low-delay uRLLC service to be transmitted, transmitting the uRLLC service to the network equipment by using a first part of radio resources in the radio resource indicated by the resource position, wherein the first part of radio resources are reserved all the time;
the terminal device transmits indication information to the network device by using a third part of radio resources in the radio resources indicated by the resource location, where the indication information is used to indicate control information of the urrllc service, the control information includes a resource location of the first part of radio resources, and is used to enable the network device to receive the urrllc service from the first part of radio resources, and the resource location of the third part of radio resources is pre-agreed by the terminal device and the network device.
2. The method of claim 1, wherein the resource location of the first portion of radio resources is pre-agreed by the terminal device and the network device.
3. The method of claim 1, wherein the terminal device transmits the urrllc service to the network device using a first part of the radio resources indicated by the resource location, and wherein the method comprises:
and the terminal equipment transmits the uRLLC service and a reference signal sequence used for identifying the uRLLC service to the network equipment by utilizing the first part of radio resources in the radio resources indicated by the resource positions.
4. A method according to claim 2 or 3, characterized in that the method further comprises:
and the terminal equipment transmits control information of the uRLLC service to the network equipment by using a second part of radio resources in the radio resources indicated by the resource positions, wherein the control information comprises a modulation and coding mode of the uRLLC service and is used for enabling the network equipment to demodulate and decode the received uRLLC service according to the modulation and coding mode of the uRLLC service.
5. The method of claim 1, wherein the control information further comprises one or more of the following:
the data volume of the uRLLC service;
the modulation and coding mode of the uRLLC service;
service information used for indicating whether the uRLLC service is transmitted for the first time;
number information for indicating a hybrid automatic repeat request, HARQ, process of the uRLLC service;
service information used for indicating whether the uRLLC service is repeatedly transmitted;
and the method is used for indicating the repeated transmission information used by the uRLLC service when the uRLLC service is the repeatedly transmitted service information.
6. A data receiving method, comprising:
the method comprises the steps that network equipment sends scheduling information to terminal equipment, wherein the scheduling information comprises a resource position used for indicating the terminal equipment to transmit radio resources of an enhanced mobile bandwidth eMBB service;
the network device receives the eMB service sent by the terminal device on the radio resource indicated by the resource position, and receives a high-reliability low-delay uRLLC service on a first part of radio resources in the radio resource indicated by the resource position, wherein the uRLLC service is transmitted on the first part of radio resources when the uRLLC service to be transmitted exists in the process that the terminal device transmits the eMB service by using the radio resource indicated by the resource position, and the first part of radio resources are reserved all the time;
wherein the network device receives the urrllc service on a first part of radio resources in the radio resources indicated by the resource location, and the method comprises:
the network device receives indication information from a third part of radio resources in the radio resources indicated by the resource position, where the indication information is used to indicate control information of the urrllc service, the control information includes the resource position of the first part of radio resources, and the resource position of the third part of radio resources is pre-agreed by the terminal device and the network device;
and the network equipment receives the uRLLC service on the first part of radio resources according to the resource position of the first part of radio resources included in the control information.
7. The method of claim 6, wherein the resource location of the first portion of radio resources is pre-agreed by the terminal device and the network device.
8. The method of claim 6, wherein the network device receiving the urrllc service on a first portion of radio resources indicated by the resource location comprises:
the network equipment detects a reference signal sequence transmitted on a first part of wireless resources in the wireless resources indicated by the resource positions;
and if the network equipment detects that the reference signal sequence is the reference signal sequence used for identifying the uRLLC service, confirming that the service received on the first part of radio resources is the uRLLC service.
9. The method according to claim 7 or 8, characterized in that the method further comprises:
the network equipment receives control information of the uRLLC service transmitted by the terminal equipment on a second part of radio resources in the radio resources indicated by the resource positions, wherein the control information comprises a modulation and coding mode of the uRLLC service;
the network device demodulates and decodes the uRLLC service received on the first portion of radio resources based on the modulation and coding scheme of the uRLLC service.
10. The method of claim 6, wherein the control information further comprises one or more of the following:
the data volume of the uRLLC service;
the modulation and coding mode of the uRLLC service;
service information used for indicating whether the uRLLC service is transmitted for the first time;
number information for indicating a hybrid automatic repeat request, HARQ, process of the uRLLC service;
service information used for indicating whether the uRLLC service is repeatedly transmitted;
and the method is used for indicating the repeated transmission information used by the uRLLC service when the uRLLC service is the repeatedly transmitted service information.
11. A terminal device comprising a processor, a receiver and a transmitter;
the transmitter is used for transmitting data;
the receiver is used for receiving data;
the processor is configured to control the receiver to receive scheduling information sent by a network device, where the scheduling information includes a resource location for indicating the terminal device to transmit a radio resource of an enhanced mobile bandwidth eMBB service; and controlling the transmitter to transmit the urrllc service to the network device by using a first part of radio resources in the radio resources indicated by the resource positions if the terminal device has the high-reliability low-delay urrllc service to be transmitted in the process of transmitting the eMB service by using the radio resources indicated by the resource positions, wherein the first part of radio resources are reserved all the time;
the processor is further configured to: and controlling the transmitter to transmit indication information to the network device by using a third part of radio resources in the radio resources indicated by the resource location, where the indication information is used to indicate control information of the urrllc service, and the control information includes a resource location of the first part of radio resources, which is used for the network device to receive the urrllc service from the first part of radio resources, and the resource location of the third part of radio resources is pre-agreed by the terminal device and the network device.
12. The terminal device of claim 11, wherein a resource location of the first portion of radio resources is pre-agreed by the terminal device and the network device.
13. The terminal device of claim 11, wherein the processor is configured to control the transmitter to transmit the urrllc service to the network device by using a first part of the radio resources indicated by the resource location, and specifically to:
and controlling the transmitter to transmit the uRLLC service and a reference signal sequence for identifying the uRLLC service to the network equipment by utilizing a first part of radio resources in the radio resources indicated by the resource positions.
14. The terminal device of claim 12 or 13, wherein the processor is further configured to:
and controlling the transmitter to transmit control information of the urrllc service to the network device by using a second part of radio resources in the radio resources indicated by the resource positions, wherein the control information includes a modulation and coding mode of the urrllc service, and is used for enabling the network device to demodulate and decode the received urrllc service according to the modulation and coding mode of the urrllc service.
15. The terminal device of claim 11, wherein the control information further comprises one or more of the following:
the data volume of the uRLLC service;
the modulation and coding mode of the uRLLC service;
service information used for indicating whether the uRLLC service is transmitted for the first time;
number information for indicating a hybrid automatic repeat request, HARQ, process of the uRLLC service;
service information used for indicating whether the uRLLC service is repeatedly transmitted;
and the method is used for indicating the repeated transmission information used by the uRLLC service when the uRLLC service is the repeatedly transmitted service information.
16. A network device comprising a processor, a transmitter and a receiver;
the transmitter is used for transmitting data;
the receiver is used for receiving data;
the processor is configured to control the transmitter to transmit scheduling information to a terminal device, where the scheduling information includes a resource location for indicating that the terminal device transmits a radio resource of an enhanced mobile bandwidth eMBB service; controlling the receiver to receive the eMBB service sent by the terminal equipment on the radio resource indicated by the resource position, and receiving the uRLLC service on the radio resource indicated by the resource position when the terminal equipment has the high-reliability low-delay uRLLC service to be transmitted, wherein the uRLLC service is transmitted by the terminal equipment by using a first part of radio resources in the radio resources indicated by the resource position, and the first part of radio resources are reserved all the time;
wherein the processor controls the receiver to receive the urrllc service on the radio resource indicated by the resource location, and is specifically configured to:
controlling the receiver to receive indication information from a third part of radio resources in the radio resources indicated by the resource location, where the indication information is used to indicate control information of the urrllc service, and the control information includes the resource location of the first part of radio resources, and the resource location of the third part of radio resources is pre-agreed by the terminal device and the network device;
and controlling the receiver to receive the uRLLC service on the first part of radio resources according to the resource position of the first part of radio resources included in the control information.
17. The network device of claim 16, wherein a resource location of the first portion of radio resources is pre-agreed by the terminal device and the network device.
18. The network device of claim 16, wherein the processor is configured to, when controlling the receiver to receive the urrllc service on a first part of radio resources indicated by the resource location, specifically:
detecting a reference signal sequence transmitted on a first part of radio resources in the radio resources indicated by the resource location;
and confirming that the service received by the receiver on the first part of radio resources is the uRLLC service when the reference signal sequence is detected to be the reference signal sequence used for identifying the uRLLC service.
19. The network device of claim 17 or 18, wherein the network device further comprises a demodulator and decoder;
the demodulator and decoder for demodulating and decoding the data received by the receiver;
the processor is further configured to:
controlling the receiver to receive control information of the urrllc service transmitted by the terminal device on a second part of radio resources in the radio resources indicated by the resource location, wherein the control information includes a modulation and coding mode of the urrllc service;
and controlling the demodulator and decoder to demodulate and decode the uRLLC service received by the receiver on the first part of radio resources based on the modulation and coding mode of the uRLLC service.
20. The network device of claim 16, wherein the control information further comprises one or more of the following:
the data volume of the uRLLC service;
the modulation and coding mode of the uRLLC service;
service information used for indicating whether the uRLLC service is transmitted for the first time;
number information for indicating a hybrid automatic repeat request, HARQ, process of the uRLLC service;
service information used for indicating whether the uRLLC service is repeatedly transmitted;
and the method is used for indicating the repeated transmission information used by the uRLLC service when the uRLLC service is the repeatedly transmitted service information.
21. A computer storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-10.
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