WO2020051823A1 - Resource configuration method, uplink transmission method, apparatus, device and storage medium - Google Patents

Abstract

A resource configuration method, an uplink transmission method in a grant-free uplink scheduling scene, an apparatus, a device and a storage medium. The method comprises: an access network device sending pre-configuration information to a terminal, the pre-configuration information being used for providing to the terminal n uplink transmission modes pre-configured for n transmission situations, n being an integer greater than one; the terminal, when needing to send target uplink data to the access network device, selecting, from the n uplink transmission modes, a target uplink transmission mode corresponding to the current transmission situation; the terminal using the target uplink transmission mode to send the target uplink data to the access network device; the access network device performing data detection according to the i-th uplink transmission mode among the n uplink transmission modes, i being a positive integer less than or equal to n. In the embodiments of the present disclosure, pre-configuration of a plurality of uplink transmission modes for different transmission situations allows for improvement of the transmission efficiency and the saving of network resources.

Description

Resource allocation method, uplink transmission method, device, equipment and storage medium Technical field

Embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a resource allocation method, an uplink transmission method, an apparatus, a device, and a storage medium in an unlicensed uplink scheduling scenario.

Background technique

With the rapid development of the Internet of Things technology, it has provided many conveniences for people's daily production and life. Among them, MTC (Machine Type Communication) and NB-IoT (Narrow Band Internet of Things) are typical representatives of the cellular Internet of Things technology.

In order to save signaling overhead, 3GPP Release-16 (3rd Generation Partnership Project-16), proposed the introduction of unlicensed uplink scheduling in MTC and NB-IoT. The traditional random access and uplink scheduling grant receiving processes need to be performed, and transmission can be performed directly on the pre-configured resources for the base station according to a preset transmission mode. However, because the base station cannot know the amount of uplink data transmitted by the terminal and the channel quality, in order to ensure the smooth progress of transmission, the base station configures a uniform transmission mode for all terminals.

With the above method, transmission efficiency is low, and network resources are easily wasted.

Summary of the Invention

Embodiments of the present disclosure provide a resource allocation method, uplink transmission method, device, device, and storage medium in an unauthorized uplink scheduling scenario, which can solve the problems of low transmission efficiency and easy waste of network resources in related technologies. The technical scheme is as follows:

According to a first aspect of the embodiments of the present disclosure, a method for resource allocation in an uplink-free scheduling scenario is provided. The method includes:

The access network device sends pre-configuration information to the terminal, where the pre-configuration information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission mode includes PRB (Physical At least one of the number and the time-frequency position of Resource Blocks, the MCS (Modulation and Coding Scheme) level used by the uplink data, and the number of repeated transmission times of the uplink data. Said n is an integer greater than 1;

The access network device performs data detection according to an i-th uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal adopts the i-th uplink transmission mode to the receiver. The network access device sends the uplink data, where i is a positive integer less than or equal to n.

Optionally, when the transmission status includes TBS (Transmission Block Size), the uplink transmission mode includes the number of PRBs occupied by the uplink data and time-frequency positions, and the uplink data used by the uplink data. MCS level.

Optionally, the n uplink transmission modes include m uplink transmission modes pre-configured for m different TBSs, where m is an integer less than or equal to n and greater than 1;

Pre-configure the same number of PRBs and different MCS levels in the m uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the m uplink transmission modes;

or,

In the m uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, among the n uplink transmission modes, the pre-configured PRBs in any two uplink transmission modes do not overlap with each other in the time domain and the frequency domain.

Optionally, among the n uplink transmission modes, there are at least two pre-configured PRBs in the uplink transmission modes that overlap in the time domain and / or the frequency domain.

Optionally, the uplink transmission method further includes the number of repeated transmissions of the uplink data, and the number of repeated transmissions of the uplink data has a positive correlation with the MCS level used by the uplink data.

Optionally, among the n uplink transmission modes, there are at least two uplink transmission modes in which PRBs that are pre-configured for repeated transmission overlap in the time domain and / or the frequency domain.

Optionally, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

Optionally, when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, the MCS level used by the uplink data, and the uplink data. The number of repeated transmissions.

Optionally, the uplink transmission mode of p, where p is an integer less than n and greater than 1, where:

Pre-configure the same number of PRBs and different MCS levels in the p uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the p types of uplink transmission modes;

or,

In the p uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, the pre-configured PRBs in the p uplink transmission modes overlap in the time domain and / or the frequency domain.

Optionally, the n uplink transmission modes include q uplink transmission modes pre-configured for q different channel qualities for the same TBS, where q is an integer less than n and greater than 1.

Wherein, the q kinds of uplink transmission methods are pre-configured with different retransmission times.

Optionally, the pre-configured PRBs in the q uplink transmission modes have overlap in the time domain and / or the frequency domain.

Optionally, among the n uplink transmission methods, there are at least two pre-configured PRBs in the uplink transmission methods that overlap in the time domain and / or the frequency domain;

The at least two uplink transmission modes are multiple different uplink transmission modes pre-configured for different TBS and different channel quality.

Optionally, the pre-configured information includes indication information corresponding to each of the n uplink transmission modes.

Optionally, the pre-configured information includes indication information corresponding to a specified uplink transmission mode among the n uplink transmission modes, and other uplink transmission modes other than the specified uplink transmission mode among the n uplink transmission modes. Determined according to a preset rule and the specified uplink transmission mode;

The specified uplink transmission method includes: an uplink transmission method pre-configured with a maximum number of PRBs, and / or an uplink transmission method with a maximum number of repeated transmissions pre-configured.

According to a second aspect of the embodiments of the present disclosure, an uplink transmission method in a license-free uplink scheduling scenario is provided. The method includes:

The terminal receives pre-configuration information sent by an access network device, and the pre-configuration information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission modes include PRB occupied by uplink data. At least one of a quantity and a time frequency location, an MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1;

When the terminal needs to send target uplink data to the access network device, select a target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes;

The terminal sends the target uplink data to the access network device by using the target uplink transmission mode.

Optionally, when the transmission status includes TBS, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, and the MCS level used by the uplink data.

Optionally, selecting the target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes includes:

According to the TBS corresponding to each of the n uplink transmission methods, the terminal selects, from the n uplink transmission methods, an uplink transmission method with a TBS that is not less than and closest to the target uplink data amount, and selects the selected uplink transmission method. The transmission mode is determined as the target uplink transmission mode.

Optionally, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

Optionally, selecting the target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes includes:

Obtaining, by the terminal, the current channel quality;

The terminal selects an uplink transmission method corresponding to the current channel quality from the n types of uplink transmission methods according to the current channel quality, and determines the selected uplink transmission method as the target uplink transmission method.

Optionally, when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, the MCS level used by the uplink data, and the uplink data. The number of repeated transmissions.

Optionally, selecting the target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes includes:

Obtaining, by the terminal, the current channel quality;

And selecting, by the terminal, the TBS corresponding to the current channel quality and the TBS that is not less than and closest to the target from the n uplink transmission methods according to the TBS corresponding to the current channel quality and the n uplink transmission methods An uplink transmission mode of the data amount of the uplink data, and the selected uplink transmission mode is determined as the target uplink transmission mode.

According to a third aspect of the embodiments of the present disclosure, an apparatus for resource allocation in an uplink-free scheduling scenario is provided, which is applied to an access network device, and the apparatus includes:

The sending module is configured to send pre-configured information to the terminal, where the pre-configured information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission mode includes a PRB occupied by uplink data. At least one of the number and time-frequency position, the MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1;

The processing module is configured to perform data detection according to an ith uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal adopts the i-th uplink transmission mode to the receiver. The network access device sends the uplink data, where i is a positive integer less than or equal to n.

Optionally, when the transmission status includes TBS, the uplink transmission mode includes the number and time-frequency position of the PRB occupied by the uplink data, and the MCS level adopted by the uplink data.

Optionally, the n uplink transmission modes include m uplink transmission modes pre-configured for m different TBSs, where m is an integer less than or equal to n and greater than 1;

Pre-configure the same number of PRBs and different MCS levels in the m uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the m uplink transmission modes;

or,

In the m uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, among the n uplink transmission modes, the pre-configured PRBs in any two uplink transmission modes do not overlap with each other in the time domain and the frequency domain.

Optionally, among the n uplink transmission modes, there are at least two pre-configured PRBs in the uplink transmission modes that overlap in the time domain and / or the frequency domain.

Optionally, the uplink transmission method further includes the number of repeated transmissions of the uplink data, and the number of repeated transmissions of the uplink data has a positive correlation with the MCS level used by the uplink data.

Optionally, among the n uplink transmission modes, there are at least two uplink transmission modes in which PRBs that are pre-configured for repeated transmission overlap in the time domain and / or the frequency domain.

Optionally, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

Optionally, when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, the MCS level used by the uplink data, and the uplink data. The number of repeated transmissions.

Optionally, the n types of uplink transmission methods include p uplink transmission methods pre-configured for p different TBSs for the same channel quality, where p is an integer less than n and greater than 1.

Pre-configure the same number of PRBs and different MCS levels in the p uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the p types of uplink transmission modes;

or,

In the p uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, the pre-configured PRBs in the p uplink transmission modes overlap in the time domain and / or the frequency domain.

Optionally, the n uplink transmission modes include q uplink transmission modes pre-configured for q different channel qualities for the same TBS, where q is an integer less than n and greater than 1.

Wherein, the q kinds of uplink transmission methods are pre-configured with different retransmission times.

Optionally, the pre-configured PRBs in the q uplink transmission modes have overlap in the time domain and / or the frequency domain.

Optionally, among the n uplink transmission methods, there are at least two pre-configured PRBs in the uplink transmission methods that overlap in the time domain and / or the frequency domain;

The at least two uplink transmission modes are multiple different uplink transmission modes pre-configured for different TBS and different channel quality.

Optionally, the pre-configured information includes indication information corresponding to each of the n uplink transmission modes.

Optionally, the pre-configured information includes indication information corresponding to a specified uplink transmission mode among the n uplink transmission modes, and other uplink transmission modes other than the specified uplink transmission mode among the n uplink transmission modes. Determined according to a preset rule and the specified uplink transmission mode;

The specified uplink transmission method includes: an uplink transmission method pre-configured with a maximum number of PRBs, and / or an uplink transmission method with a maximum number of repeated transmissions pre-configured.

According to a fourth aspect of the embodiments of the present disclosure, an uplink transmission device in a license-free uplink scheduling scenario is provided and applied to a terminal. The device includes:

A receiving module configured to receive pre-configured information sent by an access network device, where the pre-configured information is used to provide the terminal with n uplink transmission methods pre-configured for n transmission conditions, and the uplink transmission methods include uplink At least one of the number and time-frequency position of the PRB occupied by the data, the MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1;

A processing module configured to select a target uplink transmission mode consistent with a current transmission condition from the n uplink transmission modes when there is a need to send the target uplink data to the access network device;

The sending module is configured to send the target uplink data to the access network device by using the target uplink transmission mode.

Optionally, when the transmission status includes TBS, the uplink transmission mode includes the number and time-frequency position of the PRB occupied by the uplink data, and the MCS level adopted by the uplink data.

Optionally, the processing module includes:

A selection sub-module configured to select an uplink transmission method with a TBS that is not less than and closest to the target uplink data amount from the n uplink transmission methods according to the respective TBSs of the n uplink transmission methods, and The selected uplink transmission mode is determined as the target uplink transmission mode.

Optionally, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

Optionally, the processing module includes:

An acquisition submodule configured to acquire a current channel quality;

A selection submodule configured to select an uplink transmission method corresponding to the current channel quality from the n kinds of uplink transmission methods according to the current channel quality, and determine the selected uplink transmission method as the target uplink transmission the way.

Optionally, when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, the MCS level used by the uplink data, and the uplink data. The number of repeated transmissions.

Optionally, the processing module includes:

An acquisition submodule configured to acquire a current channel quality;

A selection submodule configured to select, according to the TBS corresponding to the current channel quality and the n types of uplink transmission methods, corresponding to the current channel quality from the n types of uplink transmission methods, and the TBS is not less than and most An uplink transmission method that is close to the data amount of the target uplink data, and determines the selected uplink transmission method as the target uplink transmission method.

According to a fifth aspect of the embodiments of the present disclosure, an access network device is provided, and the access network device includes:

processor;

A memory for storing executable instructions of the processor;

The processor is configured to:

Send pre-configuration information to the terminal, where the pre-configuration information is used to provide the terminal with n uplink transmission methods pre-configured for n transmission conditions, and the uplink transmission methods include the number of PRBs occupied by the uplink data and the time-frequency position At least one of the MCS level used by the uplink data and the number of repeated transmissions of the uplink data, where n is an integer greater than 1;

Perform data detection according to an i-th uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal sends the i-th uplink transmission mode to the access network device For uplink data, i is a positive integer less than or equal to n.

According to a sixth aspect of the embodiments of the present disclosure, a terminal is provided, and the terminal includes:

processor;

A memory for storing executable instructions of the processor;

The processor is configured to:

Receive pre-configuration information sent by an access network device, the pre-configuration information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, the uplink transmission modes including the number of PRBs occupied by uplink data And at least one of a time-frequency position, an MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1;

When there is a need to send target uplink data to the access network device, select a target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes;

Sending the target uplink data to the access network device by using the target uplink transmission mode.

According to a seventh aspect of the embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the method according to the first aspect, Or implement the steps of the method as described in the second aspect.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

The access network equipment is pre-configured with multiple uplink transmission modes for different transmission conditions. When the terminal needs to send uplink data to the access network equipment, it selects an uplink transmission mode that matches the current transmission condition from multiple uplink transmission modes Sending uplink data to avoid filling too much useless data or doing too many useless retransmissions not only improves transmission efficiency, but also saves network resources.

It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and should not limit the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure, and together with the description serve to explain the principles of the present disclosure.

Fig. 1 is a schematic diagram showing a network architecture according to an exemplary embodiment;

Fig. 2 is a flow chart showing a method for resource allocation in a scenario of authorization-free uplink scheduling according to an exemplary embodiment;

FIG. 3 exemplarily illustrates a schematic diagram of a data detection method;

FIG. 4 to FIG. 23 are schematic diagrams illustrating different pre-configured different uplink transmission modes;

Fig. 24 is a block diagram of a device for configuring resources in an uplink-free scheduling scenario according to an exemplary embodiment;

Fig. 25 is a block diagram of an uplink transmission apparatus in a scenario of an unlicensed uplink scheduling according to another exemplary embodiment;

Fig. 26 is a schematic structural diagram of an access network device according to an exemplary embodiment;

Fig. 27 is a schematic structural diagram of a terminal according to an exemplary embodiment.

detailed description

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure, as detailed in the appended claims.

Before describing the embodiments of the present disclosure, the related terms involved in the present disclosure are explained first.

1.Unlicensed uplink scheduling

In the traditional uplink transmission mode, when the terminal needs to transmit data upstream, the terminal first needs to send an uplink scheduling request to the access network device, and then the access network device sends an uplink scheduling authorization to the terminal. The terminal only receives the uplink scheduling authorization after receiving the uplink scheduling authorization. Can perform uplink data transmission.

In the Internet of Things scenario, the amount of data transmitted each time is relatively small. If the above process is still used, the signaling overhead is large, so the authorization-free uplink scheduling is introduced. When the terminal needs to transmit data upstream, the terminal can immediately use the pre-configured resources and transmission methods of the access network device to directly perform uplink transmission without sending an uplink scheduling request to the access network device and receiving data from the access network device. Uplink scheduling authorization.

PRB

PRB is a basic unit of LTE (Long Term Evolution) system resource scheduling. Each PRB can correspond to 12 consecutive subcarriers in the frequency domain (180KHz in the case of a 15K carrier interval), and one time slot in the time domain (that is, half a subframe, 0.5ms).

3.MCS level

MCS, which is a modulation and coding strategy, can have up to 32 types. The higher the MCS level, the higher the modulation order and coding efficiency that can be used for corresponding data transmission, that is, the greater the data transmission rate. As shown in Table-1 below, the correspondence between some MCS levels and TBS indexes is exemplarily shown. As shown in Table-2 below, the correspondence between some TBS indexes, PRB numbers, and TBS is exemplarily shown. Among them, I _TBS indicates the TBS index, and N _PRB indicates the number of PRBs. When the access network device determines the MCS level, it can refer to Table-1 to obtain I _TBS , and then determine the supported TBS according to the I _TBS and the configured N _PRB lookup table-2. For example, when the MCS level is determined to be 1, that is, I _MCS = 1, look up Table-1, and the corresponding I _TBS is 1, further, if the configured N _PRB = 2, lookup Table-2 can get TBS is 56bit.

I _MCS Modulation order I _TBS 0 2 0 1 2 1 2 2 2 3 2 3 4 2 4 5 2 5 6 2 6 7 2 7 8 2 8 9 2 9 10 4 9 11 4 10 12 4 11 13 4 12 14 4 13

Table 1

Table 2

4, repeated transmission times

When the uplink transmission coverage of the terminal is poor (for example, MTC and NB-IoT devices are usually deployed in a closed environment such as a basement, and the signal transmission process is seriously attenuated, resulting in poor coverage), in order to meet low-cost requirements, the terminal can use repeated transmissions Technology to improve the uplink coverage of terminals. Repeated transmission is to repeatedly transmit the same data information in multiple time units to obtain time diversity gain. The time unit here can be one subframe or multiple subframes. In addition, when the channel quality is poor, by increasing the number of repeated transmissions, the probability of successful decoding can be increased.

Fig. 1 is a schematic diagram showing a network architecture according to an exemplary embodiment. The network architecture may include: an access network device 110 and a terminal 120.

The access network device 110 is deployed in the access network 10. The access network in the LTE system may be called RAN (Radio Access Network, Radio Access Network). The access network device 110 and the terminal 120 communicate with each other through some air interface technology, for example, they can communicate with each other through cellular technology.

The access network device 110 may be a base station (BS), which is a device deployed in an access network to provide a terminal with a wireless communication function. The base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on. In systems using different radio access technologies, the names of the devices with base station functions may be different. For example, in LTE systems, they are called eNodeBs or eNBs. As communication technology evolves, the name "base station" may change. For ease of description, in the embodiments of the present disclosure, the above-mentioned devices that provide wireless communication functions for terminals are collectively referred to as access network devices.

The number of terminals 120 is usually multiple, and one or more terminals 120 may be distributed in a cell managed by each access network device 110. The terminal 120 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of mobile stations (Mobile Station, MS), users Device (User Equipment, UE), terminal device (terminal device), and so on. In the IoT scenario, the terminal 120 may be an electronic device (e.g., device, sensor, etc.) having a specific set of device attributes (e.g., cooling or heating function, environmental monitoring or recording function, light emitting function, sound function, etc.), which It may be embedded in and / or controlled / monitored by a central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), etc. and configured to connect to an IoT network. For example, IoT devices may include, but are not limited to: refrigerators, toasters, ovens, microwave ovens, freezers, dishwashers, washing machines, clothes dryers, stoves, air conditioners, thermostats, televisions, lamps, vacuum cleaners, electricity meters, gas As long as these devices are equipped with a communication interface for communicating with the IoT network. For convenience of description, in the embodiments of the present disclosure, the above-mentioned devices are collectively referred to as a terminal.

The technical solutions described in the embodiments of the present disclosure can be applied to the LTE system, and can also be applied to subsequent evolution systems of the LTE system, such as an LTE-A (LTE-Advanced) system or a 5G NR (New Radio) system.

In the related technology, because the access network device cannot know the amount of uplink data transmitted by the terminal and the channel quality, a unified transmission method is configured for all terminals. The unified transmission method can be based on what the access network device can support. The maximum TBS is used to pre-configure the PRB and MCS levels, or the number of repeated transmissions may be pre-configured according to the worst channel quality. Although the above method can be used to make data transmission normally possible, the transmission efficiency is very low, and network resources are wasted. For example, when the amount of uplink data transmitted by the terminal is less than the maximum TBS that the access network device can support, the terminal needs to fill in additional useless data to make the amount of data transmitted by the terminal uplink equal to the maximum TBS that the access network device can support. To carry out normal data transmission. In addition, when the channel quality of the channel where the terminal is located is good, if the repeated transmission times pre-configured according to the worst channel quality uniformly configured by the access network equipment are still used, the terminal needs to make multiple additional unnecessary repeated transmissions.

In the embodiment of the present disclosure, the access network device is pre-configured with multiple uplink transmission modes for different transmission conditions. When the terminal needs to send uplink data to the access network device, it selects the current transmission mode from the multiple uplink transmission modes. The uplink transmission mode in accordance with the conditions is used to send uplink data to avoid filling too much useless data or doing too much useless retransmission, thereby not only improving transmission efficiency, but also saving network resources.

It should be noted that the network architecture and service scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. With the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

Fig. 2 is a flow chart showing a method for resource allocation in a scenario of unlicensed uplink scheduling according to an exemplary embodiment. This method can be applied to the network architecture shown in FIG. 1. The method may include the following steps:

In step 201, the access network device sends pre-configuration information to the terminal, and the pre-configuration information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where n is an integer greater than 1.

The access network device can send the pre-configuration information to the terminal through high-level signaling. Because the terminal has multiple transmission conditions during the transmission process, the access network device can pre-configure different uplink transmission modes for different transmission conditions, so that the terminal can select a suitable uplink transmission mode according to the actual situation when there is an uplink transmission demand .

In addition, the access network device may also send pre-configuration information to the terminal through a system message periodically sent in a broadcast form, and the terminal may actively read the system message to obtain the pre-configuration information sent by the access network device.

In the embodiment of the present disclosure, the transmission status may include TBS, and / or channel quality.

TBS is the transmission block size. Data is transmitted between the MAC (Media Access Control) layer and the physical layer using TB (Transport Block) as the basic unit. However, the size of TB is not regular and random. , TBS is a standard used to measure the size of TB, so that the data to be transmitted can always find a suitable TBS. When the terminal has an uplink transmission requirement, it can select an appropriate uplink transmission mode according to the TBS corresponding to the uplink data to be sent, to avoid inefficiency and waste of network resources caused by filling with too much useless data.

Channel quality is used to indicate the quality of the channel occupied during uplink transmission. When the terminal has an uplink transmission requirement, it can select an appropriate uplink transmission method according to the current channel quality, to avoid inefficiency and waste of network resources caused by repeated useless repeated transmissions.

In the embodiment of the present disclosure, the uplink transmission mode may include at least one of the number and time-frequency position of the PRB occupied by the uplink data, the MCS level used by the uplink data, and the number of repeated transmissions of the uplink data. The PRB occupied by the uplink data refers to the PRB occupied by the uplink data sent by the terminal to the access network device. The MCS level used for uplink data refers to the modulation and coding method used for uplink data. The modulation method can include QPSK (Quadrature Phase Shift Keyin), 16QAM (Quadrature Amplitude Modulation, Quadrature Amplitude Modulation), 64QAM and so on. The number of repeated transmissions of uplink data refers to the number of times that the terminal repeatedly sends uplink data. Different channel quality can be configured with different numbers of repeated transmissions. For example, in a fixed modulation and demodulation mode, when the channel quality is poor, more repeated transmission times can be used, and when the channel quality is better, fewer repeated transmission times can be used.

In a first possible implementation manner, when the transmission status includes TBS, the uplink transmission mode may include the number of PRBs and time-frequency positions occupied by the uplink data, and the MCS level used by the uplink data. TBS is related to PRB and MCS levels. Access network equipment can pre-configure different numbers of PRBs and different MCS levels for different TBS. When the terminal has an uplink transmission requirement, it can determine a suitable TBS according to the data amount of the uplink data to be sent, and then select a PRB and MCS level corresponding to the TBS to send the uplink data to avoid wasting network resources.

In a second possible implementation manner, when the transmission status includes channel quality, the uplink transmission mode may include the number of repeated transmissions of uplink data. The number of repeated transmissions of uplink data is related to the channel quality. The access network device can pre-configure different numbers of repeated transmissions for different channel qualities. When the terminal has an uplink transmission requirement, it can determine the appropriate number of repeated transmissions according to the current channel quality to avoid wasting network resources caused by multiple useless repeated transmissions.

In a third possible implementation manner, when the transmission status includes TBS and channel quality, the uplink transmission method may include the number and time-frequency position of PRBs occupied by uplink data, the MCS level used by the uplink data, and repeated transmission of uplink data. frequency.

Optionally, the pre-configured information includes indication information corresponding to each of the n uplink transmission modes. The indication information corresponding to the uplink transmission mode is a description of the pre-configured content in the uplink transmission mode. As described above, the uplink transmission method may include at least one of the number and time-frequency position of the PRB occupied by the uplink data, the MCS level used by the uplink data, and the number of repeated transmissions of the uplink data. Accordingly, the indication information may include At least one of the following: the number and time-frequency position of the PRB, the MCS level, and the number of repeated transmissions. For example, when the access network device is pre-configured with six uplink transmission modes, the pre-configured information sent by the access network device to the terminal may include indication information corresponding to each of the six uplink transmission modes.

When multiple PRBs are pre-configured in an uplink transmission mode, the indication information corresponding to the uplink transmission mode may include the time-frequency position of each PRB. Optionally, if multiple pre-configured PRBs are continuous in time-frequency resources, the indication information corresponding to the uplink transmission method may include the time-frequency position of the first PRB, which helps to save the information of the pre-configured information.令 overhead.

In step 202, when the terminal needs to send the target uplink data to the access network device, a target uplink transmission mode is selected from the n uplink transmission modes consistent with the current transmission status.

The target uplink data refers to the uplink data to be sent by the terminal. The current transmission status refers to the transmission status when the terminal needs to send the target uplink data to the access network device. The current transmission status may include the TBS corresponding to the target uplink data, and / or the current channel quality. The target uplink transmission mode refers to the uplink transmission mode selected by the terminal when sending the target uplink data.

In the first possible implementation manner corresponding to step 201, when the transmission status includes TBS, the terminal selects from the n uplink transmission methods the TBS that is not less than and closest to the target uplink according to the respective TBS corresponding to the n uplink transmission methods. The uplink transmission mode of the data amount of the data, and the selected uplink transmission mode is determined as the target uplink transmission mode. For example, the access network device may pre-configure different uplink transmission modes for TBS = 40bit, TBS = 104bit, and TBS = 208bit, respectively. Assume that the data volume of the target uplink data is 200bit. Compared with TBS in different uplink transmission methods, the terminal selects a TBS that is not less than and closest to 200bit, that is, an uplink transmission method corresponding to TBS = 208bit, and an uplink transmission method corresponding to TBS = 208bit As the target uplink transmission method.

In addition, when the data amount of the target uplink data is less than the TBS corresponding to the target uplink transmission method, the terminal may use a padding method to fill preset data in the data bits that are not filled by the target uplink data. The preset data may be It is other useless data, and the preset data is filled at the end of the target uplink data, so that the target uplink data is equal to the TBS corresponding to the target uplink transmission mode, thereby performing normal data transmission.

In a second possible implementation manner corresponding to step 201, when the transmission status includes channel quality, the terminal obtains the current channel quality, and the current channel quality may be represented by at least one of the following parameters: RSRP (Reference Signal Received Power, Reference (Signal receiving power), RSRQ (Reference, Received Quality), RS-SINR (Signal to Interference, Noise Ratio). Then, the terminal selects an uplink transmission method corresponding to the current channel quality from the n uplink transmission methods according to the current channel quality. For example, if the channel quality is divided into two types, each type corresponds to a value range. When the terminal obtains When the current channel quality is obtained, a value corresponding to the current channel quality is obtained, and the two types of channel quality value ranges are referenced, and the value is mapped to the range to which it belongs, so as to determine the uplink transmission mode corresponding to the current channel quality. Further, the selected uplink transmission mode is determined as the target uplink transmission mode.

In a second possible implementation manner corresponding to step 201, when the transmission status includes TBS and channel quality, the terminal obtains the current channel quality, and uplinks from n types according to the current channel quality and the TBS corresponding to each of the n types of uplink transmission methods. In the transmission method, an uplink transmission method corresponding to the current channel quality and having a TBS of not less than and closest to the target uplink data amount is selected, and the selected uplink transmission method is determined as the target uplink transmission method.

For example, the terminal may first select at least one uplink transmission method with a TBS of not less than and closest to the target uplink data amount from the n uplink transmission methods, and then further select from the at least one uplink transmission method corresponding to the current channel quality And determine the selected uplink transmission mode as the target uplink transmission mode.

For another example, the terminal may first select at least one uplink transmission method corresponding to the current channel quality from the n uplink transmission methods, and then further select data from the at least one uplink transmission method that has a TBS not less than and closest to the target uplink data. The number of uplink transmission modes, and the selected uplink transmission mode is determined as the target uplink transmission mode.

In step 203, the terminal sends the target uplink data to the access network device by using the target uplink transmission mode.

In the embodiment of the present disclosure, when the terminal needs to send the target uplink data to the access network device, the terminal may directly send the target uplink data by using the selected target uplink transmission mode.

In the first possible implementation manner corresponding to step 201, when the transmission status includes TBS, the terminal can determine the PRB and MCS levels after selecting the target uplink transmission method according to the data amount of the target uplink data, and then use the determined PRB. And the MCS level to process the target uplink data, and then send the processed target uplink data to the access network device.

In a second possible implementation manner corresponding to step 201, when the transmission status includes channel quality, after the terminal selects the target uplink transmission mode according to the current channel quality, the terminal can determine the number of repeated transmissions, and then connect to the receiver according to the repeated transmission times. The networked device retransmits the target uplink data.

Corresponding to the third possible implementation manner in step 201, when the transmission status includes TBS and channel quality, the terminal can determine the PRB and MCS after selecting the target uplink transmission mode according to the data amount of the target uplink data and the current channel quality. Level and number of repeated transmissions, and then send the target uplink data to the access network device according to the content determined above.

In step 204, the access network device performs data detection according to the i-th uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal sends the uplink data to the access network device by using the i-th uplink transmission mode. , I is a positive integer less than or equal to n.

The access network device may perform data detection according to one or more uplink transmission modes among the foregoing n uplink transmission modes. Because the access network device does not know which uplink transmission mode the terminal will use for uplink transmission, the access network device can sequentially traverse the n uplink transmission modes for data detection. When the uplink transmission is based on any of the n uplink transmission modes When the method detects uplink data sent by the terminal to the access network device, it stops data detection.

The above data detection may include operations such as de-rate matching, merging, demodulation, and decoding of the data. Among them, the merging may use HARQ (Hybird, Automatic Repeat Request), and the decoding may use Turbo decoding. The purpose is Improve the success rate of transmitted data and the accuracy of decoded data.

The access network device performs data detection at the time-frequency position of each PRB according to the uplink transmission mode configured on the PRB. Exemplarily, referring to FIG. 3, the access network device is pre-configured with three uplink transmission modes, and the number of pre-configured PRBs in each of the three uplink transmission modes is one. In the first uplink transmission mode, the MCS level is configured as MCS 1 and the supported TBS = 24bit; in the second uplink transmission mode, the MCS level is configured as MCS 4 and the supported TBS = 56bit; the third uplink transmission mode The MCS level is configured as MCS 8 and the supported TBS = 120bit. When the access network equipment performs data detection, the MCS levels configured in the three uplink transmission modes, namely MCS1, MCS4, and MCS8, are demodulated on three different PRBs, and then performed. Decoding and other operations.

In summary, in the technical solution provided by the embodiments of the present disclosure, the access network device is pre-configured with multiple uplink transmission modes for different transmission conditions. When the terminal needs to send uplink data to the access network device, In the uplink transmission mode, an uplink transmission mode that is consistent with the current transmission status is selected to send uplink data to avoid filling too much useless data or doing too much useless retransmission, which not only improves the transmission efficiency, but also saves network resources.

In the following, the technical solution of the present disclosure will be described with the transmission status including TBS, the uplink transmission mode including the number and time-frequency position of the PRB occupied by the uplink data, and the MCS level used by the uplink data.

In this case, the n uplink transmission modes pre-configured by the access network device may include m uplink transmission modes pre-configured for m different TBSs, where m is an integer less than or equal to n and greater than 1.

For example, the access network device is pre-configured with three uplink transmission modes, and each uplink transmission mode corresponds to a different TBS, which may be TBS = 56bit, TBS = 120bit, and TBS = 256bit, respectively.

Because the size of the TBS is related to the number of PRBs and MCS levels, the access network device can adopt the following three methods, and pre-configure multiple uplink transmission methods corresponding to different TBSs.

1. The same number of PRBs and different MCS levels are pre-configured in the m uplink transmission methods.

Exemplarily, referring to FIG. 4, the access network device is pre-configured with three uplink transmission modes, and the number of pre-configured PRBs in the three uplink transmission modes are all two. In the first uplink transmission method, in order to support TBS = 56bit transmission, the MCS level configured by the access network device is MCS1; in the second uplink transmission method, in order to support TBS = 120bit transmission, the access network device configuration is configured In the third uplink transmission method, in order to support TBS = 256bit transmission, the MCS level configured by the access network device is MCS 8.

2. In the m uplink transmission modes, different numbers of PRBs and the same MCS level are pre-configured.

Exemplarily, referring to FIG. 5, the access network device is pre-configured with three uplink transmission modes, and the pre-configured MCS levels in these three uplink transmission modes are all MCS3. In the first uplink transmission method, in order to support TBS = 40bit transmission, the access network device is configured with one PRB; in the second uplink transmission method, in order to support TBS = 104bit transmission, the access network device is configured with 2 In the third uplink transmission mode, in order to support TBS = 208bit transmission, the access network equipment is configured with 4 PRBs.

3. In the m uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Exemplarily, referring to FIG. 6, the access network device is pre-configured with three uplink transmission modes. In the first uplink transmission mode, in order to support TBS = 40bit transmission, the MCS level configured by the access network device is MCS 3 And the number of PRBs is one; in the second uplink transmission method, in order to support TBS = 104bit transmission, the MCS level configured by the access network equipment is MCS 3, and the number of PRBs is two; in the third uplink transmission method In order to support TBS = 256bit transmission, the MCS level configured by the access network equipment is MCS 8 and the number of PRBs is 2.

Optionally, among the above-mentioned n uplink transmission methods, the pre-configured PRBs in any two uplink transmission methods do not overlap with each other in the time domain and the frequency domain. For example, in the pre-configured schemes shown in FIG. 4 to FIG. 6, among the three uplink transmission schemes pre-configured in each scheme, the pre-configured PRB in any two uplink transmission schemes occupies resources in the time and frequency domains. Can be completely independent and do not overlap each other.

Optionally, among the above n uplink transmission methods, there are at least two pre-configured PRBs in the uplink transmission methods that overlap in the time domain and / or the frequency domain, including but not limited to any of the following situations:

1. Pre-configured PRBs in at least two uplink transmission modes overlap in both the time and frequency domains.

Exemplarily, with reference to FIG. 7, the abscissa represents a time domain resource, and the ordinate represents a frequency domain resource. The access network equipment is pre-configured with three uplink transmission modes, and the number of pre-configured PRBs in these three uplink transmission modes are all two. In the first uplink transmission method, in order to support TBS = 56bit transmission, the MCS level configured by the access network device is MCS1; in the second uplink transmission method, in order to support TBS = 120bit transmission, the access network device configuration is configured In the third uplink transmission method, in order to support TBS = 256bit transmission, the MCS level configured by the access network device is MCS 8. The two pre-configured PRBs in the above three uplink transmission modes can occupy the same time domain resources and frequency domain resources. In FIG. 7, only to show multiple uplink transmission modes, the pre-configured PRBs in the three uplink transmission modes are shown in a partially overlapping form.

2. Pre-configured PRBs in at least two uplink transmission modes overlap in the time domain, and there is no overlap in the frequency domain.

Exemplarily, referring to FIG. 8, the access network device is pre-configured with three uplink transmission modes, and the number of pre-configured PRBs in the three uplink transmission modes are all two. The TBS and MCS levels corresponding to each uplink transmission method are the same as those in the example of FIG. 7 and will not be described again here. It can be seen from FIG. 8 that the two pre-configured PRBs in the above three uplink transmission modes can occupy the same time domain resources but occupy different frequency domain resources.

3. Pre-configured PRBs in at least two uplink transmission modes overlap in the frequency domain and there is no overlap in the time domain.

Exemplarily, referring to FIG. 9, the access network device is pre-configured with three uplink transmission modes, and the pre-configured MCS levels in the three uplink transmission modes are all MCS3. In the first uplink transmission method, in order to support TBS = 40bit transmission, the access network device is configured with one PRB; in the second uplink transmission method, in order to support TBS = 104bit transmission, the access network device is configured with 2 In the third uplink transmission mode, in order to support TBS = 208bit transmission, the access network equipment is configured with 4 PRBs. It can be seen from FIG. 9 that the pre-configured PRBs in the above three uplink transmission modes occupy different time domain resources, and there is no overlap in time domain resources, and the frequency domain resources occupied by the three uplink transmission modes partially overlap. .

It should be noted that the "overlap" described in this article may be all overlaps or partial overlaps. Wherein, the pre-configured PRBs in the two uplink transmission modes all overlap in time domain resources, which means that the same number of PRBs are pre-configured in these two uplink transmission modes and occupy the same time domain resources. The pre-configured PRBs in the two uplink transmission methods all overlap in the frequency domain resources, which means that the same number of PRBs are pre-configured in the two uplink transmission methods and occupy the same frequency-domain resources. The pre-configured PRBs in the two uplink transmission modes partially overlap in time domain resources, which means that the same or different number of PRBs are pre-configured in these two uplink transmission modes and occupy the same time domain resources. The pre-configured PRBs in the two uplink transmission modes partially overlap in the frequency domain resources, which means that the same or different number of PRBs are pre-configured in these two uplink transmission modes and occupy the same frequency domain resources.

In addition, the uplink transmission method may also include the number of repeated transmissions of uplink data, and the number of repeated transmissions of uplink data is positively related to the MCS level used by the uplink data. Under the same channel quality, in order to support a larger TBS, the MCS level can be increased, that is, a higher-order modulation method and a higher code rate are used to transmit uplink data. However, this also increases the probability of errors in uplink data transmission. Therefore, in order to ensure the accuracy of the transmission, the number of repeated transmissions is correspondingly increased.

Exemplarily, referring to FIG. 10, the access network device is pre-configured with three uplink transmission modes, and the number of pre-configured PRBs in these three uplink transmission modes are all two. In the first uplink transmission method, in order to support TBS = 56bit transmission, the MCS level configured by the access network device is MCS1, and the number of repeated transmissions is 4 times; in the second uplink transmission method, in order to support TBS = 120bit Transmission, the MCS level configured by the access network device is MCS 4 and the number of repeated transmissions is 8 times; in the third uplink transmission method, in order to support TBS = 256bit transmission, the MCS level configured by the access network device is MCS 8 The number of repeated transmissions is 16. It can be seen that as the MCS level increases, the corresponding number of repeated transmissions also increases.

Exemplarily, referring to FIG. 11, the access network device is pre-configured with three uplink transmission modes, and the pre-configured MCS levels in these three uplink transmission modes are all MCS3. In the first uplink transmission method, in order to support TBS = 40bit transmission, the access network device is configured with one PRB; in the second uplink transmission method, in order to support TBS = 104bit transmission, the access network device is configured with 2 In the third uplink transmission mode, in order to support TBS = 208bit transmission, the access network equipment is configured with 4 PRBs. Since the MCS levels pre-configured in the three uplink transmission methods above are all MCS 3, the corresponding repeated transmission times are also the same, all being 4 times.

Exemplarily, referring to FIG. 12, the access network device is pre-configured with three uplink transmission modes. In the first uplink transmission mode, in order to support TBS = 40bit transmission, the MCS level configured by the access network device is MCS 3 And the number of PRBs is one and the number of repeated transmissions is four times. In the second uplink transmission method, in order to support TBS = 104bit transmission, the MCS level configured by the access network equipment is MCS 3, and the number of PRBs is two. Correspondingly, the number of repeated transmissions is 4 times. In the third uplink transmission method, in order to support TBS = 256bit transmission, the MCS level configured by the access network equipment is MCS 8 and the number of PRBs is 2 and the number of repeated transmissions is 16. Times.

Optionally, in the case of repeated transmissions, among the above-mentioned n uplink transmission modes, at least two of the uplink transmission modes have pre-configured PRBs configured for repeated transmissions that overlap in the time domain and / or the frequency domain.

If the pre-configured repeated transmission times in the at least two uplink transmission modes are the same, the PRBs pre-configured for repeated transmission in the at least two uplink transmission modes may completely overlap in the time domain or may partially overlap. In addition, in the at least two uplink transmission modes, the PRBs pre-configured for repeated transmission may or may not overlap in the frequency domain. For example, corresponding to the three uplink transmission methods shown in FIG. 11, the number of repeated transmissions is 4 times, and the pre-configured PRBs in these three uplink transmission methods can all overlap in the time domain and partially overlap in the frequency domain. As shown in Figure 14.

If the pre-configured repeated transmission times in the at least two uplink transmission modes are different, the PRBs pre-configured for repeated transmission in the at least two uplink transmission modes may partially overlap in the time domain. In addition, in the at least two uplink transmission modes, the PRBs pre-configured for repeated transmission may or may not overlap in the frequency domain. For example, corresponding to the three uplink transmission methods shown in FIG. 10, the repeated transmission times are 4, 8, and 16 respectively. The pre-configured PRBs in the three uplink transmission methods can partially overlap in the time domain. Full overlap in the frequency domain, as shown in Figure 13.

Because there are multiple uplink transmission modes configured on some PRBs, the access network equipment needs to perform multiple data detections on some PRBs accordingly. Exemplarily, referring to FIG. 13, the access network device is pre-configured with three uplink transmission modes, where the number of PRBs is fixed to two, and PRBs in the three uplink transmission modes occupy the same frequency domain resources. In addition, for channel quality 1, a total of 16 sub-frames are pre-configured for repeated transmission. Among them, 4 sub-frames can be used for transmitting TBS of 56 bits, and 8 sub-frames can be used for transmitting 120-bit TBS. When TBS is 256-bit, it can be used. 16 of them. When the access network equipment performs data detection, it needs to combine the first 4, 8 and 16 subframes in turn, respectively. Correspondingly, the received data is demodulated with MCS 1, MCS 4 and MCS 8 and then decoded, etc. operating. If the access network device successfully decodes the correct target uplink data in the uplink transmission method corresponding to MCS 4, it is confirmed that the terminal uses the uplink transmission method corresponding to MCS 4 to send uplink data to the access network device. Data detection is performed at the time and frequency positions of the uplink transmission method corresponding to MCS8.

In addition, as described in the embodiment of FIG. 2, the pre-configuration information may include indication information corresponding to each of the n uplink transmission modes. In some other embodiments, the pre-configured information may also include indication information corresponding to a specified uplink transmission mode among the n uplink transmission modes. The specified uplink transmission mode includes: an uplink transmission mode pre-configured with a maximum number of PRBs. Among the above n types of uplink transmission methods, other uplink transmission methods other than the designated uplink transmission method are determined according to a preset rule and the designated uplink transmission method. For example, the terminal may calculate the number of PRBs consistent with the current transmission status according to the ratio of the TBS in the current transmission status to the largest TBS in the n uplink transmission methods, and determine the time-frequency position of the selected PRB according to a preset rule.

Exemplarily, referring to FIG. 14, the access network device is pre-configured with three uplink transmission modes, and the pre-configuration information may include an uplink transmission mode pre-configured with the largest number of PRBs, that is, an uplink transmission mode corresponding to four PRBs. Instructions. At this time, the maximum TBS supported by the pre-configured uplink transmission mode is 208 bits. According to the data amount of the target uplink data, when the selected TBS is 104 bits, it is 1/2 of the maximum TBS, and the number of corresponding PRBs is also reduced to 1/2 of the maximum PRB, that is, the number of PRBs is 2. In addition, the terminal may determine the time-frequency positions of the two selected PRBs according to the time-frequency domain positions and preset rules of the four PRBs, for example, selecting the first two PRBs of the four PRBs.

In addition, the foregoing predetermined rule may be configured in advance and synchronized between the access network device and the terminal. For example, the preset rule may be sent by the access network device to the terminal, or pre-configured by a protocol.

In the embodiment of the present disclosure, the specific values of the number of pre-configured PRBs, MCS levels, and repeated transmission times in each uplink transmission method are not specifically limited, and they can be reasonably configured according to actual service requirements.

In summary, in the technical solution provided by the embodiment of the present disclosure, when the transmission status includes TBS, the access network device pre-configures multiple uplink transmission methods for different TBSs. The uplink transmission method may include uplink data. The number and time-frequency position of the occupied PRBs, and the MCS level used by the uplink data. According to the current amount of uplink transmission data, the terminal selects an uplink transmission method corresponding to the terminal to send uplink data, avoiding filling up with unnecessary data, which not only improves transmission efficiency, but also saves network resources.

In the following, the technical solution of the present disclosure will be described in terms of transmission conditions including channel quality, and uplink transmission methods including the number of repeated transmissions of uplink data.

For different channel qualities, the access network device can be pre-configured with different retransmission times. Optionally, when the channel quality is poor, the access network device may pre-configure a larger number of repeated transmission times to ensure a successful transmission rate; when the channel quality is good, the access network device may pre-configure a smaller number The number of repeated transmissions to avoid unnecessary retransmissions.

Exemplarily, with reference to FIG. 15, it shows two pre-configured uplink transmission modes when TBS = 56 bit under channel quality 1 and channel quality 2. In these two uplink transmission methods, the MCS level is MCS1, and the number of PRBs is two. In order to support TBS transmission under two channel qualities, correspondingly, two different retransmission times are pre-configured. In the first uplink transmission mode, the number of repeated transmissions is 4 times. In the second uplink transmission mode, The number of repeated transmissions is 32 times.

In addition, as described in the embodiment of FIG. 2, the pre-configuration information may include indication information corresponding to each of the n uplink transmission modes. In some other embodiments, the pre-configured information may also include indication information corresponding to a specified uplink transmission mode among the n uplink transmission modes. The specified uplink transmission mode includes: an uplink transmission mode pre-configured with a maximum number of repeated transmission times. . Among the above n types of uplink transmission methods, other uplink transmission methods other than the designated uplink transmission method are determined according to a preset rule and the designated uplink transmission method. For example, the terminal may calculate the number of repeated transmissions consistent with the current channel quality according to the difference between the current channel quality and the channel quality corresponding to the specified uplink transmission method.

For example, it is assumed that among the several pre-configured uplink transmission methods, the maximum number of repeated transmissions is 32 times. When the terminal detects that the current channel quality is better than the channel quality corresponding to the uplink transmission methods with 32 times of repeated transmissions, it may be appropriate. Reduce the number of repeated transmissions, such as 4 times.

In addition, the foregoing predetermined rule may be configured in advance and synchronized between the access network device and the terminal. For example, the preset rule may be sent by the access network device to the terminal, or pre-configured by a protocol.

In the embodiment of the present disclosure, the specific value of the number of repeated transmission times pre-configured in each uplink transmission method is not specifically limited, and it can be reasonably configured according to actual service requirements.

In summary, in the technical solution provided by the embodiment of the present disclosure, in a case where the transmission status includes channel quality, the access network device is pre-configured with multiple uplink transmission modes including different repeated transmission times, so that the terminal can Quality, select an uplink transmission mode that matches the uplink data to send, avoid excessive unnecessary retransmissions, not only improve transmission efficiency, but also save network resources.

In the following, the technical solution of the present disclosure will be described in terms of transmission conditions including TBS and channel quality, and uplink transmission methods including the number and time-frequency position of PRBs occupied by uplink data, MCS levels used for uplink data, and the number of repeated transmissions of uplink data.

For the same channel quality, the access network device can pre-configure multiple different uplink transmission modes for different TBS. The n uplink transmission modes pre-configured by the access network device include p uplink transmission modes pre-configured for p different TBSs for the same channel quality, where p is an integer less than n and greater than 1. Among them, the same number of PRBs and different MCS levels are pre-configured in the p uplink transmission methods; or the different number of PRBs and the same MCS level are pre-configured in p uplink transmission methods; or the p-type uplink transmission methods are pre-configured. Different numbers of PRBs and different MCS levels. In addition, for the same channel quality, multiple different uplink transmission modes are pre-configured for different TBSs. The access network device can also pre-configure the corresponding number of repeated transmissions according to the MCS level pre-configured in each uplink transmission mode. There is a positive correlation between the number of repeated transmissions and the MCS level.

For the same TBS, the access network device can also pre-configure multiple different uplink transmission modes for different channel qualities. The n uplink transmission modes pre-configured by the access network equipment include q uplink transmission modes pre-configured for q different channel qualities for the same TBS, where q is an integer less than n and greater than 1; among them, q uplink transmissions Different retransmission times are pre-configured in the mode.

In the following, in FIG. 16 to FIG. 22, a variety of uplink transmission modes pre-configured by the access network device are described by taking channel quality including two types and TBS including three types as examples.

As shown in FIG. 16, for channel quality 1, the access network device pre-configures three different uplink transmission methods for three different TBSs, and the three uplink transmission methods are pre-configured with the same number of PRBs and different MCS levels. Similarly, for channel quality 2, the access network device pre-configures three different uplink transmission methods for the three different TBSs, and the three uplink transmission methods are pre-configured with the same number of PRBs and different MCS levels.

As shown in FIG. 17, for channel quality 1, the access network device pre-configures 3 different uplink transmission methods for 3 different TBSs, and the 3 types of uplink transmission methods are pre-configured with the same MCS level and different number of PRBs. Similarly, for channel quality 2, the access network device pre-configures three different uplink transmission methods for the three different TBSs, and the same three uplink transmission methods are pre-configured with the same MCS level and different number of PRBs.

As shown in FIG. 18, for channel quality 1, the access network device pre-configures 3 different uplink transmission methods for 3 different TBSs, and different MCS levels and different numbers of PRBs are pre-configured in the 3 uplink transmission methods. Similarly, for channel quality 2, the access network device pre-configures three different uplink transmission methods for the above three different TBSs, and different MCS levels and different numbers of PRBs are pre-configured in the three uplink transmission methods.

Optionally, for different TBS and different channel qualities, in a plurality of different uplink transmission modes pre-configured by the access network device, the time-frequency resources occupied by the PRB may overlap.

In a possible implementation manner, for multiple different uplink transmission modes configured for different TBSs under the same channel quality, the time-frequency resources occupied by the PRBs overlap. For example, for the same channel quality, p uplink transmission modes pre-configured for p different TBSs, and the pre-configured PRBs in the p uplink transmission modes overlap in the time domain and / or the frequency domain.

As shown in FIG. 19, the access network device is pre-configured with six different uplink transmission modes, and the detailed configuration mode is the same as that of FIG. 16 and will not be described again here. Among them, the pre-configured PRBs in the three uplink transmission methods under channel quality 1 completely overlap in the frequency domain and partially overlap in the time domain; similarly, the pre-configured PRBs in the three uplink transmission methods under channel quality 2 are at Full overlap in the frequency domain and partial overlap in the time domain.

As shown in FIG. 20, the access network device is pre-configured with six different uplink transmission modes, and the detailed configuration mode is the same as that of FIG. 17 and will not be repeated here. Among them, the pre-configured PRBs in the three uplink transmission methods under channel quality 1 partially overlap in the frequency domain and completely overlap in the time domain; similarly, the pre-configured PRBs in the three uplink transmission methods under channel quality 2 are at Partial overlap in the frequency domain and full overlap in the time domain.

As shown in FIG. 21, the access network device is pre-configured with six different uplink transmission modes, and the detailed configuration mode is the same as that of FIG. 18, and details are not described herein again. Among them, the pre-configured PRBs in the three uplink transmission methods under channel quality 1 overlap in the frequency and time domains, and the pre-configured PRBs in the three uplink transmission methods under channel quality 2 are in the frequency and time domains. There are also overlaps.

In another possible implementation manner, for multiple different uplink transmission modes configured for different channel qualities under the same TBS, the time-frequency resources occupied by the PRBs overlap. For example, for the same TBS, there are q uplink transmission modes pre-configured for q different channel qualities, and the pre-configured PRBs in the q uplink transmission modes overlap in the time domain and / or the frequency domain.

Exemplarily, as shown in FIG. 22, the access network device is pre-configured with six different uplink transmission modes, and the detailed configuration mode is the same as that in FIG. 16, and details are not described herein again. Among them, the pre-configured PRBs in the two uplink transmission methods corresponding to TBS = 56bit completely overlap in the frequency domain, and partially overlap in the time domain; the pre-configured PRBs in the two uplink transmission methods corresponding to TBS = 120bit are in the frequency domain. Full overlap, partial overlap in the time domain; pre-configured PRBs in the two uplink transmission methods corresponding to TBS = 256bit completely overlap in the frequency domain, and partially overlap in the time domain.

In yet another possible implementation manner, among the n uplink transmission modes pre-configured by the access network device, there is at least two pre-configured PRBs in the uplink transmission modes that overlap in the time domain and / or the frequency domain; wherein, The at least two uplink transmission modes are multiple different uplink transmission modes pre-configured for different TBS and different channel qualities.

Exemplarily, as shown in FIG. 23, the access network device is pre-configured with six different uplink transmission modes, and the detailed configuration mode is the same as that of FIG. 16, and details are not described herein again. Because the number of pre-configured PRBs in these six uplink transmission methods is 2, the pre-configured PRBs in these six uplink transmission methods can completely overlap in the frequency domain; in addition, because of the pre-configured PRBs in these six uplink transmission methods The number of repeated transmissions is different, so the pre-configured PRBs in the six uplink transmission modes can partially overlap in the time domain.

In summary, in the technical solution provided by the embodiments of the present disclosure, multiple uplink transmission methods are configured corresponding to different TBS and different channel qualities. The uplink transmission methods include the number of PRBs occupied by uplink data, time and frequency positions, and uplink data. The MCS level and the number of repeated transmissions of the uplink data are used, so that the terminal chooses the uplink transmission method that matches the uplink data to send the uplink data, and avoids filling too much unnecessary data or doing too many unnecessary retransmissions, which not only improves the transmission efficiency, but also Saved network resources.

In addition, by overlapping the pre-configured PRBs in multiple different uplink transmission methods in the time domain and / or the frequency domain and sharing some physical resources, the purpose of reducing the amount of reserved resources can be achieved.

It should be noted that, in the above embodiment, when the transmission status includes TBS, the uplink transmission method is pre-configured with two contents: PRB and MCS level. In some other embodiments, when the transmission status includes TBS, only one of the PRB and MCS levels may be pre-configured in the uplink transmission mode, and the other content may be configured by default or other methods. This disclosure The embodiment is not limited thereto.

It should also be noted that, in the above method embodiment, the technical solution of the present disclosure is described from the perspective of the interaction between the access network device and the terminal. The above steps about the access network device can be implemented separately as a resource allocation method in an unauthorized uplink scheduling scenario on the side of the access network device. The above steps related to the terminal can be separately implemented as an uplink transmission method in the scenario of an unauthorized uplink scheduling on the terminal side.

The following are device embodiments of the present disclosure and can be used to implement the method embodiments of the present disclosure. For details not disclosed in the device embodiments of the present disclosure, please refer to the method embodiments of the present disclosure.

Fig. 24 is a block diagram of a device for resource configuration in a scenario of uplink-free scheduling according to an exemplary embodiment. The device has a function of implementing the method example on the access network device side, and the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The device may be the access network device described above, or may be set in the access network device. The apparatus may include: a sending module 2401 and a processing module 2402.

The sending module 2401 is configured to send pre-configured information to the terminal, where the pre-configured information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission modes include uplink data occupation At least one of the number and time-frequency position of the PRB, the MCS level adopted by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1.

The processing module 2402 is configured to perform data detection according to an i-th uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal adopts the i-th uplink transmission mode to the The access network device sends the uplink data, where i is a positive integer less than or equal to n.

In summary, in the technical solution provided by the embodiments of the present disclosure, the access network device is pre-configured with multiple uplink transmission modes for different transmission conditions. When the terminal needs to send uplink data to the access network device, In the uplink transmission mode, an uplink transmission mode that is consistent with the current transmission status is selected to send uplink data to avoid filling too much useless data or doing too much useless retransmission, which not only improves the transmission efficiency, but also saves network resources.

In an optional embodiment provided based on the embodiment of FIG. 24, when the transmission status includes TBS, the uplink transmission mode includes the number of PRBs occupied by the uplink data and time-frequency positions, and the uplink data location. MCS grade used.

Optionally, the n uplink transmission modes include m uplink transmission modes pre-configured for m different TBSs, where m is an integer less than or equal to n and greater than 1;

Pre-configure the same number of PRBs and different MCS levels in the m uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the m uplink transmission modes;

or,

In the m uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, among the n uplink transmission modes, the pre-configured PRBs in any two uplink transmission modes do not overlap with each other in the time domain and the frequency domain.

Optionally, among the n uplink transmission modes, there are at least two pre-configured PRBs in the uplink transmission modes that overlap in the time domain and / or the frequency domain.

Optionally, the uplink transmission method further includes the number of repeated transmissions of the uplink data, and the number of repeated transmissions of the uplink data has a positive correlation with the MCS level used by the uplink data.

Optionally, among the n uplink transmission modes, there are at least two uplink transmission modes in which PRBs that are pre-configured for repeated transmission overlap in the time domain and / or the frequency domain. In another optional embodiment provided based on the embodiment of FIG. 24 or any of the foregoing optional embodiments, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

In another optional embodiment based on the embodiment of FIG. 24 or any of the foregoing optional embodiments, when the transmission status includes TBS and channel quality, the uplink transmission mode includes a PRB occupied by the uplink data. The number and time-frequency position, the MCS level used by the uplink data, and the number of repeated transmissions of the uplink data.

Optionally, the n types of uplink transmission methods include p uplink transmission methods pre-configured for p different TBSs for the same channel quality, where p is an integer less than n and greater than 1.

Pre-configure the same number of PRBs and different MCS levels in the p uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the p types of uplink transmission modes;

or,

In the p uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, the pre-configured PRBs in the p uplink transmission modes overlap in the time domain and / or the frequency domain.

Optionally, the n uplink transmission modes include q uplink transmission modes pre-configured for q different channel qualities for the same TBS, where q is an integer less than n and greater than 1.

Wherein, the q kinds of uplink transmission methods are pre-configured with different retransmission times.

Optionally, the pre-configured PRBs in the q uplink transmission modes have overlap in the time domain and / or the frequency domain.

Optionally, among the n uplink transmission methods, there are at least two pre-configured PRBs in the uplink transmission methods that overlap in the time domain and / or the frequency domain;

The at least two uplink transmission modes are multiple different uplink transmission modes pre-configured for different TBS and different channel quality.

In another optional embodiment provided based on the embodiment of FIG. 24 or any of the foregoing optional embodiments, the pre-configuration information includes indication information corresponding to each of the n uplink transmission modes.

In another optional embodiment provided based on the embodiment of FIG. 24 or any one of the foregoing optional embodiments, the pre-configuration information includes indication information corresponding to a specified uplink transmission mode among the n uplink transmission modes. Among the n uplink transmission modes, other uplink transmission modes than the designated uplink transmission mode are determined according to a preset rule and the designated uplink transmission mode;

The target uplink transmission mode includes: an uplink transmission mode pre-configured with a maximum number of PRBs, and / or an uplink transmission mode pre-configured with a maximum number of repeated transmissions.

Fig. 25 is a block diagram of an uplink transmission apparatus in a scenario of an unlicensed uplink scheduling according to another exemplary embodiment. The device has a function of implementing the above-mentioned terminal-side method example, and the function may be implemented by hardware, or may be implemented by executing corresponding software by hardware. The device may be the terminal introduced above, or may be set in the terminal. The device may include a receiving module 2501, a processing module 2502, and a sending module 2503.

The receiving module 2501 is configured to receive pre-configured information sent by an access network device, where the pre-configured information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission modes include At least one of the number of physical resource blocks PRB occupied by the uplink data and the time-frequency position, the modulation and coding strategy MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is greater than 1. Integer.

The processing module 2502 is configured to select a target uplink transmission mode consistent with the current transmission status from the n uplink transmission modes when there is a need to send the target uplink data to the access network device.

The sending module 2503 is configured to send the target uplink data to the access network device by using the target uplink transmission mode.

In summary, in the technical solution provided by the embodiments of the present disclosure, the access network device is pre-configured with multiple uplink transmission modes for different transmission conditions. When the terminal needs to send uplink data to the access network device, In the uplink transmission mode, an uplink transmission mode that is consistent with the current transmission status is selected to send uplink data to avoid filling too much useless data or doing too much useless retransmission, which not only improves the transmission efficiency, but also saves network resources.

In an optional embodiment provided based on the embodiment of FIG. 25, when the transmission status includes a transmission block size TBS, the uplink transmission mode includes the number of PRBs and time-frequency positions occupied by the uplink data, and the MCS level used for uplink data.

Optionally, the processing module 2502 includes:

A selection sub-module configured to select an uplink transmission method with a TBS that is not less than and closest to the target uplink data amount from the n uplink transmission methods according to the respective TBSs of the n uplink transmission methods, and The selected uplink transmission mode is determined as the target uplink transmission mode.

In another optional embodiment provided based on the embodiment of FIG. 25 or any of the foregoing optional embodiments, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

Optionally, the processing module 2502 includes:

An acquisition submodule configured to acquire a current channel quality;

A selection submodule configured to select an uplink transmission method corresponding to the current channel quality from the n kinds of uplink transmission methods according to the current channel quality, and determine the selected uplink transmission method as the target uplink transmission the way.

In another optional embodiment provided based on the embodiment of FIG. 25 or any of the foregoing optional embodiments, when the transmission status includes TBS and channel quality, the uplink transmission mode includes a PRB occupied by the uplink data. The number and time-frequency position, the MCS level used by the uplink data, and the number of repeated transmissions of the uplink data.

Optionally, the processing module 2502 includes:

An acquisition submodule configured to acquire a current channel quality;

A selection submodule configured to select, according to the TBS corresponding to the current channel quality and the n types of uplink transmission methods, corresponding to the current channel quality from the n types of uplink transmission methods, and the TBS is not less than and most An uplink transmission method that is close to the data amount of the target uplink data, and determines the selected uplink transmission method as the target uplink transmission method.

It should be noted that when the device provided by the above embodiment implements its functions, only the division of the above functional modules is used as an example. In actual applications, the above functions may be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.

Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

An exemplary embodiment of the present disclosure also provides an access network device capable of implementing a resource configuration method in the authorization-free uplink scheduling scenario provided by the present disclosure. The access network device may include a processor and a memory for storing executable instructions of the processor. The processor is configured to:

Send pre-configuration information to the terminal, where the pre-configuration information is used to provide the terminal with n uplink transmission methods pre-configured for n transmission conditions, and the uplink transmission methods include the number of PRBs occupied by the uplink data and the time-frequency position At least one of the MCS level used by the uplink data and the number of repeated transmissions of the uplink data, where n is an integer greater than 1;

Perform data detection according to an i-th uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal sends the i-th uplink transmission mode to the access network device For uplink data, i is a positive integer less than or equal to n.

Optionally, when the transmission status includes TBS, the uplink transmission mode includes a PRB occupied by the uplink data and an MCS level used by the uplink data.

Optionally, the n uplink transmission modes include m uplink transmission modes pre-configured for m different TBSs, where m is an integer less than or equal to n and greater than 1;

Pre-configure the same number of PRBs and different MCS levels in the m uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the m uplink transmission modes;

or,

In the m uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, among the n uplink transmission modes, the pre-configured PRBs in any two uplink transmission modes do not overlap with each other in the time domain and the frequency domain.

Optionally, among the n uplink transmission modes, there are at least two pre-configured PRBs in the uplink transmission modes that overlap in the time domain and / or the frequency domain.

Optionally, the uplink transmission method further includes the number of repeated transmissions of the uplink data, and the number of repeated transmissions of the uplink data has a positive correlation with the MCS level used by the uplink data.

Optionally, among the n uplink transmission modes, there are at least two uplink transmission modes in which PRBs that are pre-configured for repeated transmission overlap in the time domain and / or the frequency domain.

Optionally, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

Optionally, when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, the MCS level used by the uplink data, and the uplink data. The number of repeated transmissions.

Optionally, the n types of uplink transmission methods include p uplink transmission methods pre-configured for p different TBSs for the same channel quality, where p is an integer less than n and greater than 1.

Pre-configure the same number of PRBs and different MCS levels in the p uplink transmission modes;

or,

Pre-configure different numbers of PRBs and the same MCS level in the p types of uplink transmission modes;

or,

In the p uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured.

Optionally, the pre-configured PRBs in the p uplink transmission modes overlap in the time domain and / or the frequency domain.

Optionally, the n uplink transmission modes include q uplink transmission modes pre-configured for q different channel qualities for the same TBS, where q is an integer less than n and greater than 1.

Wherein, the q kinds of uplink transmission methods are pre-configured with different retransmission times.

Optionally, the pre-configured PRBs in the q uplink transmission modes have overlap in the time domain and / or the frequency domain.

Optionally, among the n uplink transmission methods, there are at least two pre-configured PRBs in the uplink transmission methods that overlap in the time domain and / or the frequency domain;

The at least two uplink transmission modes are multiple different uplink transmission modes pre-configured for different TBS and different channel quality.

Optionally, the pre-configured information includes indication information corresponding to each of the n uplink transmission modes.

Optionally, the pre-configured information includes indication information corresponding to a specified uplink transmission mode among the n uplink transmission modes, and other uplink transmission modes other than the specified uplink transmission mode among the n uplink transmission modes. Determined according to a preset rule and the specified uplink transmission mode;

The specified uplink transmission method includes: an uplink transmission method pre-configured with a maximum number of PRBs, and / or an uplink transmission method with a maximum number of repeated transmissions pre-configured.

An exemplary embodiment of the present disclosure further provides a terminal, which can implement an uplink transmission method in an unlicensed uplink scheduling scenario provided by the present disclosure. The terminal may include a processor and a memory for storing executable instructions of the processor. The processor is configured to:

Receive pre-configuration information sent by an access network device, the pre-configuration information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, the uplink transmission modes including the number of PRBs occupied by uplink data And at least one of a time-frequency position, an MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1;

When there is a need to send target uplink data to the access network device, select a target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes;

Sending the target uplink data to the access network device by using the target uplink transmission mode.

Optionally, when the transmission status includes TBS, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, and the MCS level used by the uplink data.

Optionally, the processor is configured to select, based on the TBS corresponding to each of the n uplink transmission methods, a data amount with a TBS that is not less than and closest to the target uplink data from the n uplink transmission methods. An uplink transmission mode, and determining the selected uplink transmission mode as the target uplink transmission mode.

Optionally, when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data.

Optionally, the processor is further configured:

Obtain the current channel quality;

According to the current channel quality, an uplink transmission mode corresponding to the current channel quality is selected from the n kinds of uplink transmission modes, and the selected uplink transmission mode is determined as the target uplink transmission mode.

Optionally, when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, the MCS level used by the uplink data, and the uplink data. The number of repeated transmissions.

Optionally, the processor is further configured:

Obtain the current channel quality;

According to the TBS corresponding to the current channel quality and the n types of uplink transmission methods, from the n types of uplink transmission methods, a TBS corresponding to the current channel quality and having a TBS not less than and closest to the target uplink data is selected The uplink transmission mode of the data amount, and the selected uplink transmission mode is determined as the target uplink transmission mode.

An exemplary embodiment of the present disclosure also provides a resource allocation system in an uplink-free scheduling scenario. The system may include the access network device and the terminal described above.

The above mainly introduces the solutions provided by the embodiments of the present disclosure from the perspective of an access network device and a terminal. It can be understood that, in order to realize the above functions, the access network device and the terminal include a hardware structure and / or a software module corresponding to each function. With reference to the units and algorithm steps of each example described in the embodiments disclosed in this disclosure, the embodiments of this disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is performed by hardware or computer software-driven hardware depends on the specific application of the technical solution and design constraints. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the technical solutions of the embodiments of the present disclosure.

Fig. 26 is a schematic structural diagram of an access network device according to an exemplary embodiment.

The access network device 2600 includes a transmitter / receiver 2601 and a processor 2602. The processor 2602 may also be a controller, which is shown as "controller / processor 2602" in FIG. 26. The transmitter / receiver 2601 is configured to support receiving and sending information between the access network device and the terminal in the foregoing embodiment, and to support communication between the access network device and other network entities. The processor 2602 performs various functions for communicating with a terminal. In the uplink, the uplink signal from the terminal is received via an antenna, demodulated by the receiver 2601 (for example, demodulating a high-frequency signal into a baseband signal), and further processed by the processor 2602 to restore the terminal. Send to service data and signaling information. On the downlink, the service data and signaling messages are processed by the processor 2602 and modulated by the transmitter 2601 (for example, the baseband signal is modulated into a high-frequency signal) to generate a downlink signal and transmitted to the terminal via the antenna . It should be noted that the above-mentioned demodulation or modulation function may also be completed by the processor 2602. For example, the processor 2602 is further configured to execute each step of the access network device side in the foregoing method embodiment, and / or other steps of the technical solution described in the embodiment of the present disclosure.

Further, the access network device 2600 may further include a memory 2603, and the memory 2603 is configured to store program codes and data of the access network device 2600. In addition, the access network device may further include a communication unit 2604. The communication unit 2604 is configured to support communication between an access network device and other network entities (such as a network device in a core network). For example, in the LTE system, the communication unit 2604 may be an S1-U interface, which is used to support an access network device to communicate with a serving gateway (S-GW); or the communication unit 2604 may also be an S1- An MME interface is used to support communication between an access network device and a Mobility Management Entity (MME).

It can be understood that FIG. 26 only shows a simplified design of the access network device 2600. In practical applications, the access network device 2600 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all access network devices that can implement the embodiments of the present disclosure are in the present disclosure. Within the scope of protection of the embodiments.

Fig. 27 is a schematic structural diagram of a terminal according to an exemplary embodiment.

The terminal 2700 includes a transmitter 2701, a receiver 2702, and a processor 2703. The processor 2703 may also be a controller, which is shown as "controller / processor 2703" in FIG. 27. Optionally, the terminal 2700 may further include a modem processor 2705. The modem processor 2705 may include an encoder 2706, a modulator 2707, a decoder 2708, and a demodulator 2709.

In one example, the transmitter 2701 conditions (e.g., analog conversion, filtering, amplification, up-conversion, etc.) the output samples and generates an uplink signal that is transmitted to the access network device via an antenna. On the downlink, the antenna receives a downlink signal transmitted by the access network device. The receiver 2702 conditions (eg, filters, amplifies, downconverts, and digitizes, etc.) the signal received from the antenna and provides input samples. In the modem processor 2705, the encoder 2706 receives service data and signaling messages to be transmitted on the uplink, and processes (e.g., formats, encodes, and interleaves) the service data and signaling messages. The modulator 2707 further processes (e.g., symbol maps and modulates) the encoded service data and signaling messages and provides output samples. A demodulator 2709 processes (e.g., demodulates) the input samples and provides symbol estimates. The decoder 2708 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages sent to the terminal 2700. The encoder 2706, the modulator 2707, the demodulator 2709, and the decoder 2708 may be implemented by a synthetic modem processor 2705. These units process according to the radio access technology (for example, the access technology of LTE and other evolved systems) adopted by the radio access network. It should be noted that when the terminal 2700 does not include the modem processor 2705, the above functions of the modem processor 2705 may also be performed by the processor 2703.

The processor 2703 controls and manages the actions of the terminal 2700, and is configured to execute the processing procedure performed by the terminal 2700 in the foregoing embodiments of the present disclosure. For example, the processor 2703 is further configured to execute each step on the terminal side in the foregoing method embodiments, and / or other steps of the technical solution described in the embodiments of the present disclosure.

Further, the terminal 2700 may further include a memory 2704. The memory 2704 is configured to store program codes and data for the terminal 2700.

It can be understood that FIG. 27 shows only a simplified design of the terminal 2700. In practical applications, the terminal 2700 may include any number of transmitters, receivers, processors, modem processors, memories, etc., and all terminals that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure. Inside.

An embodiment of the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor of an access network device, the foregoing authorization-free uplink on the access network device side is implemented. Steps of a resource allocation method in a scheduling scenario.

An embodiment of the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor of a terminal, the terminal implements uplink transmission in the foregoing terminal-free uplink scheduling scenario. Method steps.

It should be understood that "a plurality" mentioned herein means two or more. "And / or" describes the association relationship of the associated objects, and indicates that there can be three kinds of relationships. For example, A and / or B can mean that there are three cases in which A exists alone, A and B exist, and B exists alone. The character "/" generally indicates that the related objects are an "or" relationship.

Those skilled in the art will readily contemplate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed by this disclosure. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise structure that has been described above and illustrated in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the following claims.

Claims (34)

A method for resource allocation in an uplink-free scheduling scenario is characterized in that the method includes: The access network device sends pre-configuration information to the terminal, where the pre-configuration information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission mode includes physical resource blocks occupied by uplink data. At least one of the number and time-frequency position of PRBs, the modulation and coding strategy MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1; The access network device performs data detection according to an i-th uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal adopts the i-th uplink transmission mode to the receiver. The network access device sends the uplink data, where i is a positive integer less than or equal to n. The method according to claim 1, wherein when the transmission status includes a transmission block size (TBS), the uplink transmission mode includes the number of PRBs and time-frequency positions occupied by the uplink data, and the uplink data The MCS level used. The method according to claim 2, wherein the n uplink transmission modes include m uplink transmission modes pre-configured for m different TBSs, and m is an integer less than or equal to n and greater than 1. ;among them, Pre-configure the same number of PRBs and different MCS levels in the m uplink transmission modes; or, Pre-configure different numbers of PRBs and the same MCS level in the m uplink transmission modes; or, In the m uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured. The method according to claim 2, wherein among the n uplink transmission modes, the pre-configured PRBs in any two uplink transmission modes do not overlap with each other in the time domain and the frequency domain. The method according to claim 2, wherein among the n uplink transmission modes, there are at least two pre-configured PRBs in the uplink transmission modes that overlap in a time domain and / or a frequency domain. The method according to claim 2, wherein the uplink transmission method further comprises the number of repeated transmissions of the uplink data, and the number of repeated transmissions of the uplink data is positively correlated with the MCS level used by the uplink data relationship. The method according to claim 6, characterized in that among the n uplink transmission modes, there are at least two uplink transmission modes in which PRBs pre-configured for repeated transmission have overlap in the time domain and / or the frequency domain. The method according to claim 1, wherein when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data. The method according to claim 1, wherein when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, and the uplink data location. The MCS level used and the number of repeated transmissions of the uplink data. The method according to claim 9, wherein the n types of uplink transmission methods include p uplink transmission methods pre-configured for p different TBSs for the same channel quality, where p is less than n and greater than 1 Integer; where, Pre-configure the same number of PRBs and different MCS levels in the p uplink transmission modes; or, Pre-configure different numbers of PRBs and the same MCS level in the p types of uplink transmission modes; or, In the p uplink transmission modes, different numbers of PRBs and different MCS levels are pre-configured. The method according to claim 10, wherein the pre-configured PRBs in the p types of uplink transmission modes overlap in a time domain and / or a frequency domain. The method according to claim 9, wherein the n uplink transmission modes include q uplink transmission modes pre-configured for q different channel qualities for the same TBS, where q is less than n and greater than n An integer of 1 Wherein, the q kinds of uplink transmission methods are pre-configured with different retransmission times. The method according to claim 12, wherein the pre-configured PRBs in the q uplink transmission modes overlap in the time domain and / or the frequency domain. The method according to claim 9, wherein among the n uplink transmission modes, there are at least two pre-configured PRBs in the uplink transmission modes that overlap in the time domain and / or the frequency domain; The at least two uplink transmission modes are multiple different uplink transmission modes pre-configured for different TBS and different channel quality. The method according to any one of claims 1 to 14, wherein the pre-configured information includes indication information corresponding to each of the n uplink transmission modes. The method according to any one of claims 1 to 14, wherein the pre-configured information includes indication information corresponding to a specified uplink transmission mode among the n uplink transmission modes, and the n uplink transmission modes Other uplink transmission modes other than the designated uplink transmission mode are determined according to a preset rule and the designated uplink transmission mode; The specified uplink transmission method includes: an uplink transmission method pre-configured with a maximum number of PRBs, and / or an uplink transmission method with a maximum number of repeated transmissions pre-configured. An uplink transmission method in a license-free uplink scheduling scenario, characterized in that the method includes: A terminal receives pre-configured information sent by an access network device, and the pre-configured information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission modes include physical resources occupied by uplink data. At least one of the number and time-frequency position of block PRBs, the modulation and coding strategy MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1; When the terminal needs to send target uplink data to the access network device, select a target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes; The terminal sends the target uplink data to the access network device by using the target uplink transmission mode. The method according to claim 17, wherein when the transmission status includes a transmission block size (TBS), the uplink transmission mode includes the number of PRBs and time-frequency positions occupied by the uplink data, and the uplink data The MCS level used. The method according to claim 18, wherein the selecting from the n uplink transmission modes a target uplink transmission mode consistent with the current transmission status comprises: According to the TBS corresponding to each of the n uplink transmission methods, the terminal selects, from the n uplink transmission methods, an uplink transmission method with a TBS that is not less than and closest to the target uplink data amount, and selects the selected uplink transmission method. The transmission mode is determined as the target uplink transmission mode. The method according to claim 17, wherein when the transmission status includes channel quality, the uplink transmission mode includes a number of repeated transmissions of the uplink data. The method according to claim 20, wherein the selecting from the n uplink transmission modes a target uplink transmission mode consistent with the current transmission status comprises: Obtaining, by the terminal, the current channel quality; The terminal selects an uplink transmission method corresponding to the current channel quality from the n types of uplink transmission methods according to the current channel quality, and determines the selected uplink transmission method as the target uplink transmission method. The method according to claim 17, wherein when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, and the uplink data location. The MCS level used and the number of repeated transmissions of the uplink data. The method according to claim 22, wherein the selecting the target uplink transmission mode that matches the current transmission status from the n uplink transmission modes comprises: Obtaining, by the terminal, the current channel quality; And selecting, by the terminal, the TBS corresponding to the current channel quality and the TBS that is not less than and closest to the target from the n uplink transmission methods according to the respective TBS corresponding to the current channel quality and the n uplink transmission methods An uplink transmission mode of the data amount of the uplink data, and the selected uplink transmission mode is determined as the target uplink transmission mode. An apparatus for resource allocation in an uplink-free scheduling scenario is characterized in that it is applied to an access network device, and the apparatus includes: The sending module is configured to send pre-configured information to the terminal, where the pre-configured information is used to provide the terminal with n uplink transmission modes pre-configured for n transmission conditions, where the uplink transmission mode includes physical data occupied by uplink data. At least one of the number and time-frequency position of resource blocks PRB, the modulation and coding strategy MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1; The processing module is configured to perform data detection according to an ith uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal adopts the i-th uplink transmission mode to the receiver. The network access device sends the uplink data, where i is a positive integer less than or equal to n. An uplink transmission device in a license-free uplink scheduling scenario is characterized in that the device is applied to a terminal, and the device includes: A receiving module configured to receive pre-configured information sent by an access network device, where the pre-configured information is used to provide the terminal with n uplink transmission methods pre-configured for n transmission conditions, and the uplink transmission methods include uplink At least one of the number of physical resource blocks PRB occupied by the data, the time and frequency position, the modulation and coding strategy MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than ; A processing module configured to select a target uplink transmission mode consistent with a current transmission condition from the n uplink transmission modes when there is a need to send the target uplink data to the access network device; The sending module is configured to send the target uplink data to the access network device by using the target uplink transmission mode. The apparatus according to claim 25, wherein when the transmission status includes a transmission block size (TBS), the uplink transmission mode includes a number of PRBs occupied by the uplink data and time-frequency positions, and the uplink data The MCS level used. The apparatus according to claim 26, wherein the processing module comprises: A selection sub-module configured to select an uplink transmission method with a TBS that is not less than and closest to the target uplink data amount from the n uplink transmission methods according to the respective TBSs of the n uplink transmission methods, and The selected uplink transmission mode is determined as the target uplink transmission mode. The apparatus according to claim 25, wherein when the transmission status includes channel quality, the uplink transmission mode includes the number of repeated transmissions of the uplink data. The apparatus according to claim 28, wherein the processing module comprises: An acquisition submodule configured to acquire a current channel quality; A selection submodule configured to select an uplink transmission method corresponding to the current channel quality from the n kinds of uplink transmission methods according to the current channel quality, and determine the selected uplink transmission method as the target uplink transmission the way. The apparatus according to claim 25, wherein when the transmission status includes TBS and channel quality, the uplink transmission mode includes the number and time-frequency position of PRBs occupied by the uplink data, and the uplink data location. The MCS level used and the number of repeated transmissions of the uplink data. The apparatus according to claim 30, wherein the processing module comprises: An acquisition submodule configured to acquire a current channel quality; A selection submodule configured to select, according to the TBS corresponding to the current channel quality and the n types of uplink transmission methods, corresponding to the current channel quality from the n types of uplink transmission methods, and the TBS is not less than and most An uplink transmission method that is close to the data amount of the target uplink data, and determines the selected uplink transmission method as the target uplink transmission method. An access network device, characterized in that the access network device includes: processor; A memory for storing executable instructions of the processor; The processor is configured to: Send pre-configuration information to the terminal, where the pre-configuration information is used to provide the terminal with n uplink transmission methods pre-configured for n transmission conditions, where the uplink transmission methods include the number of physical resource blocks PRB occupied by uplink data and At least one of a time frequency position, a modulation and coding strategy MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1; Perform data detection according to an i-th uplink transmission mode among the n uplink transmission modes, and the data detection is used to detect whether the terminal sends the i-th uplink transmission mode to the access network device For uplink data, i is a positive integer less than or equal to n. A terminal, characterized in that the terminal includes: processor; A memory for storing executable instructions of the processor; The processor is configured to: Receiving pre-configuration information sent by an access network device, the pre-configuration information is used to provide the terminal with n uplink transmission methods pre-configured for n transmission conditions, the uplink transmission methods including physical resource blocks occupied by uplink data At least one of the number and time-frequency position of PRBs, the modulation and coding strategy MCS level used by the uplink data, and the number of repeated transmissions of the uplink data, where n is an integer greater than 1; When there is a need to send target uplink data to the access network device, select a target uplink transmission mode that is consistent with the current transmission status from the n uplink transmission modes; Sending the target uplink data to the access network device by using the target uplink transmission mode. A non-transitory computer-readable storage medium having stored thereon a computer program, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 16 are implemented, or Steps of the method according to any one of claims 17 to 23.

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