CN111988854A

CN111988854A - Data transmission method, device, related equipment and storage medium

Info

Publication number: CN111988854A
Application number: CN201910442260.7A
Authority: CN
Inventors: 陈晶晶; 胡南; 徐珉
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-11-24

Abstract

The invention discloses a data transmission method, a data transmission device and related equipment. The method comprises one of the following steps: performing LBT on a plurality of uplink frequency domain resources, wherein data is transmitted on one uplink frequency domain resource and data is received on one downlink frequency domain resource; performing LBT on a plurality of uplink frequency domain resources, transmitting data on one uplink frequency domain resource, and receiving data on a plurality of downlink frequency domain resources; carrying out LBT on a plurality of uplink frequency domain resources, carrying out data transmission on the plurality of uplink frequency domain resources, and carrying out data reception on the plurality of downlink frequency domain resources; performing LBT on a plurality of uplink frequency domain resources, performing data transmission on the plurality of uplink frequency domain resources, and performing data reception on one downlink frequency domain resource; LBT is carried out on one uplink frequency domain resource, data transmission is carried out on one uplink frequency domain resource, and data reception is carried out on one downlink frequency domain resource; LBT is carried out on one uplink frequency domain resource, data is sent on one uplink frequency domain resource, and data is received on a plurality of downlink frequency domain resources.

Description

Data transmission method, device, related equipment and storage medium

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a data transmission method, apparatus, related device, and storage medium.

Background

When a fifth generation mobile communication technology (5G) New air interface (NR, New Radio) system independently operates in an unlicensed spectrum, due to coexistence with WIFI services, Listen Before Talk (LBT, Listen Before Talk) is required, which results in that the 5G NR system cannot obtain stable and continuous channel resources, and affects system performance, such as reception of paging and system messages, and random access process.

Disclosure of Invention

In view of the above, embodiments of the present invention mainly aim to provide a data transmission method, an apparatus, a related device and a storage medium.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a data transmission method, which is applied to a terminal and comprises the following steps:

performing LBT on a plurality of uplink frequency domain resources, performing data transmission on one uplink frequency domain resource, and performing data reception on one downlink frequency domain resource; or,

performing LBT on a plurality of uplink frequency domain resources, performing data transmission on one uplink frequency domain resource, and performing data reception on a plurality of downlink frequency domain resources; or,

Performing LBT on a plurality of uplink frequency domain resources, performing data transmission on the plurality of uplink frequency domain resources, and performing data reception on the plurality of downlink frequency domain resources; or,

performing LBT on a plurality of uplink frequency domain resources, performing data transmission on the plurality of uplink frequency domain resources, and performing data reception on one downlink frequency domain resource; or,

performing LBT on an uplink frequency domain resource, performing data transmission on the uplink frequency domain resource, and performing data reception on a downlink frequency domain resource; or,

and carrying out LBT on one uplink frequency domain resource, carrying out data transmission on the one uplink frequency domain resource, and carrying out data reception on a plurality of downlink frequency domain resources.

In the above scheme, the uplink frequency domain resource is part of the bandwidth of the uplink; the downlink frequency domain resource is a downlink partial bandwidth.

In the above scheme, the partial bandwidth includes: BandWidth portion (BWP, BandWidth Part) and/or a portion of BandWidth within BWP.

In the above scheme, performing LBT on multiple uplink frequency domain resources, and performing data transmission on one uplink frequency domain resource includes one of the following:

carrying out data transmission on the frequency domain resource which is successfully LBT firstly;

Performing data transmission on one frequency domain resource with the highest LBT success rate;

carrying out data transmission on one frequency domain resource with the highest LBT success rate within a first preset time length;

performing data transmission on one frequency domain resource with the highest LBT success frequency within a second preset time length;

and transmitting data on one frequency domain resource which meets the first threshold requirement.

In the above-mentioned scheme, the first step of the method,

performing LBT on a plurality of uplink frequency domain resources, where the performing data transmission on the plurality of uplink frequency domain resources includes one of:

carrying out data transmission on a plurality of frequency domain resources successfully subjected to LBT;

carrying out data transmission on a plurality of frequency domain resources with higher LBT success rate;

carrying out data transmission on a plurality of frequency domain resources with higher LBT success times;

performing data transmission on a plurality of frequency domain resources with higher LBT success rate within a third preset time length;

carrying out data transmission on a plurality of frequency domain resources with higher LBT success times within a fourth preset time length;

and transmitting data on the frequency domain resources meeting the second threshold requirement.

In the above scheme, the corresponding threshold requirement includes at least one of:

LBT success rate;

the LBT success rate within a preset time length;

number of LBT successes;

LBT success times within a preset time length are preset;

number of LBT failures;

LBT failure times within a preset time length;

LBT failure rate;

LBT failure rate within a preset time length;

a Reference Signal Received Quality (RSRQ);

signal to interference plus noise ratio (SINR);

reference Signal Received Power (RSRP).

In the above scheme, the corresponding threshold requirement is a specified requirement or is obtained by network transmission.

In the above scheme, the corresponding preset duration is a specified duration or is obtained through network delivery.

In the above-mentioned scheme, the first step of the method,

when data transmission is performed on the multiple frequency domain resources with higher LBT success rate within the third preset duration, the method further includes:

receiving at least one of the following information sent by a network:

an LBT success rate threshold;

a first frequency domain resource number for data transmission;

a first maximum of the number of frequency domain resources for data transmission.

In the above scheme, the

When data transmission is performed on the multiple frequency domain resources with the higher LBT success times within the fourth preset time period, the method further includes:

receiving at least one of the following information sent by a network:

a second LBT success time threshold;

a second frequency domain resource number for data transmission;

A second maximum of the number of frequency domain resources for data transmission.

In the above scheme, the method further comprises:

and reporting a first signaling to a network, wherein the first signaling is used for indicating the terminal to carry out frequency domain resource information of LBT.

In the foregoing solution, the content of the first signaling includes at least one of:

performing LBT on one frequency domain resource;

performing LBT on a plurality of frequency domain resources;

the number of frequency domain resources to perform LBT;

maximum value of the number of frequency domain resources for LBT;

and performing the index of the frequency domain resource of the LBT or the frequency domain resource position information.

In the above-mentioned scheme, the first step of the method,

the obtaining of the information of the plurality of uplink frequency domain resources for LBT includes at least one of:

the number of specified uplink frequency domain resources for LBT;

the maximum value of the number of the specified uplink frequency domain resources for LBT;

the number of uplink frequency domain resources for LBT issued by the network;

and the maximum value of the number of the uplink frequency domain resources for LBT is issued by the network.

In the above scheme, the method further comprises:

receiving a second signaling sent by a network; the second signaling is used for indicating downlink frequency domain resource information of the received downlink data.

In the foregoing solution, the content of the second signaling includes at least one of:

Receiving data on a downlink frequency domain resource;

receiving data on one downlink frequency domain resource;

receiving data on a plurality of downlink frequency domain resources;

receiving the number of frequency domain resources of downlink data;

and receiving the frequency domain resource index or the frequency domain resource position information of the downlink data.

In the foregoing solution, when performing LBT on the frequency domain resource, the method further includes one of:

if the LBT is not successful within the fifth preset time length, carrying out frequency domain resource conversion;

the LBT failure times reach or exceed a third threshold, and frequency domain resource conversion is carried out;

performing frequency domain resource conversion when the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time length;

and when the LBT success rate reaches or is lower than a fifth threshold within a seventh preset time length, the terminal performs frequency domain resource conversion.

reporting the failure of the wireless link if the LBT is not successful within a fifteenth preset time length;

if the LBT failure times reach or exceed an eleventh threshold, reporting the radio link failure;

reporting the failure of the wireless link when the LBT failure rate reaches or exceeds a twelfth threshold within a sixteenth preset time length;

And reporting the radio link failure when the LBT success rate reaches or is lower than a thirteenth threshold within a seventeenth preset time length.

if the LBT is not successful within the eighteenth preset time, the physical layer of the terminal reports the LBT failure to the media access control MAC layer of the terminal;

when the LBT failure times reach or exceed a fourteenth threshold, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

the LBT failure rate reaches or exceeds a fifteenth threshold within a nineteenth preset time length, and a physical layer of the terminal reports the LBT failure to an MAC layer of the terminal;

and when the LBT success rate reaches or is lower than a sixteenth threshold within the twentieth preset time, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal.

In the above scheme, the corresponding threshold is a specified threshold or a threshold issued by the network.

In the foregoing solution, when performing frequency domain resource conversion, the method further includes:

determining a target frequency domain resource of the frequency domain resource conversion by one of the following methods:

autonomously determining target frequency domain resources;

taking the frequency domain resource meeting certain threshold requirements as a target frequency domain resource;

And determining the target frequency domain resource by using the index of the target frequency domain resource issued by the network.

In the foregoing solution, the threshold requirement includes at least one of the following:

LBT success rate;

LBT success rate within a certain length of time;

number of LBT successes;

number of LBT successes within a certain duration;

number of LBT failures;

number of LBT failures within a certain length of time;

LBT failure rate;

LBT failure rate for a certain duration;

RSRQ；

SINR；

RSRP。

in the above scheme, the method further comprises:

and reporting a third signaling to a network, wherein the third signaling is used for indicating the terminal to carry out uplink frequency domain resource information of uplink data transmission.

In the foregoing solution, the content of the third signaling includes at least one of:

performing data transmission on an uplink frequency domain resource;

performing data transmission on a plurality of uplink frequency domain resources;

data transmission is not carried out on a plurality of uplink frequency domain resources;

the number of a plurality of uplink frequency domain resources for data transmission;

the maximum value of the number of the plurality of uplink frequency domain resources for data transmission;

and carrying out uplink frequency domain resource index or frequency domain resource position information of data transmission.

In the above scheme, the method further comprises:

receiving a fourth signaling sent by the network; and the fourth signaling is used for indicating the uplink frequency domain resource information of the terminal for transmitting uplink data.

In the foregoing scheme, the content of the fourth signaling includes at least one of:

the number of uplink frequency domain resources for data transmission;

maximum value of uplink frequency domain resource number for data transmission;

The embodiment of the invention also provides a data transmission method, which is applied to network equipment and comprises the following steps:

performing LBT on a plurality of downlink frequency domain resources, performing data transmission on one downlink frequency domain resource, and performing data reception on one uplink frequency domain resource; or,

performing LBT on a plurality of downlink frequency domain resources, performing data transmission on the plurality of downlink frequency domain resources, and performing data reception on one uplink frequency domain resource; or,

performing LBT on a plurality of downlink frequency domain resources, performing data transmission on the plurality of downlink frequency domain resources, and performing data reception on the plurality of uplink frequency domain resources; or,

performing LBT on a plurality of downlink frequency domain resources, performing data transmission on one downlink frequency domain resource, and performing data reception on a plurality of uplink frequency domain resources; or,

performing LBT on a downlink frequency domain resource, performing data transmission on the downlink frequency domain resource, and performing data reception on an uplink frequency domain resource; or,

LBT is carried out on one downlink frequency domain resource, data transmission is carried out on a plurality of downlink frequency domain resources, and data receiving is carried out on one uplink frequency domain resource.

In the above scheme, the partial bandwidth includes: BWP and/or a portion of bandwidth within BWP.

In the foregoing scheme, performing LBT on multiple downlink frequency domain resources, and performing downlink data transmission on one downlink frequency domain resource includes one of:

performing data transmission on one frequency domain resource with the highest LBT success rate within the eighth preset time length;

performing data transmission on one frequency domain resource with the highest LBT success frequency within a ninth preset time length;

and transmitting data on one frequency domain resource meeting the sixth threshold requirement.

In the above-mentioned scheme, the first step of the method,

performing LBT on a plurality of downlink frequency domain resources, where the performing downlink data transmission on the plurality of downlink frequency domain resources includes one of:

carrying out data transmission on a plurality of frequency domain resources with higher LBT success rate within a tenth preset time length;

performing data transmission on a plurality of frequency domain resources with higher LBT success times within an eleventh preset time length;

and transmitting data on the frequency domain resource meeting the seventh threshold requirement.

LBT success rate;

the LBT success rate within a preset time length;

number of LBT successes;

LBT success times within a preset time length are preset;

number of LBT failures;

LBT failure times within a preset time length;

LBT failure rate;

LBT failure rate within a preset time length;

RSRQ；

SINR；

RSRP。

in the above scheme, the method further comprises:

issuing at least one of the following information to the terminal:

a first preset time length; the first preset duration is used for the terminal to determine a frequency domain resource with the highest LBT success rate in the first preset duration for data transmission;

the second preset time length is used for the terminal to determine a frequency domain resource with the highest LBT success frequency in the second preset time length for data transmission;

A third preset time length, where the third preset time length is used for the terminal to determine multiple frequency domain resources with a higher LBT success rate within the third preset time length for data transmission;

an LBT success rate threshold; the first LBT success rate threshold is used for the terminal to determine a plurality of frequency domain resources with higher LBT success rate within a third preset duration for data transmission;

a first frequency domain resource number for data transmission; the second frequency domain resource data is used for the terminal to determine a plurality of frequency domain resources with higher LBT success rate in a third preset duration for data transmission;

a first maximum value of the number of frequency domain resources for data transmission; the first maximum value is used for the terminal to determine a plurality of frequency domain resources with higher LBT success rate in a third preset duration for data transmission;

a fourth preset time duration, where the fourth preset time duration is used for the terminal to determine multiple frequency domain resources with higher LBT success times within the fourth preset time duration, so as to be used for data transmission;

LBT success frequency threshold; the success frequency threshold is used for the terminal to determine a plurality of frequency domain resources with higher LBT success frequency within a fourth preset time length for data transmission;

A second frequency domain resource number for data transmission; the second frequency domain resource data is used for the terminal to determine a plurality of frequency domain resources with higher LBT success times in a fourth preset duration for data transmission;

a second maximum value of the number of frequency domain resources for data transmission; the second maximum value is used for the terminal to determine a plurality of frequency domain resources with higher LBT success times in a fourth preset duration for data transmission;

a first threshold requirement; the first threshold requires a frequency domain resource for the terminal to determine for data transmission;

a second threshold requirement; the second threshold requires a plurality of frequency domain resources for the terminal to determine for data transmission;

a fifth preset time duration; the fifth preset time is used for the terminal to determine whether LBT of one frequency domain resource in the fifth preset time is successful;

a sixth preset duration; the sixth preset time is used for the terminal to determine the failure rate of performing LBT on one frequency domain resource in the sixth preset time;

a seventh preset duration; the seventh preset duration is used for the terminal to determine the success rate of LBT of one frequency domain resource in the seventh preset duration;

a third threshold; the third threshold is used for the terminal to determine whether the LBT failure times reaches or exceeds the third threshold so as to determine whether to perform frequency domain resource conversion;

A fourth threshold; the fourth threshold is used for the terminal to determine whether the LBT failure rate in a sixth preset time duration reaches or exceeds the fourth threshold so as to determine whether to perform frequency domain resource conversion;

a fifth threshold; the fifth threshold is used for the terminal to determine whether the LBT success rate within the seventh preset duration reaches or is lower than the fifth threshold so as to determine whether to perform frequency domain resource conversion;

a fifteenth preset duration; the fifteenth preset time is used for the terminal to determine whether LBT of one frequency domain resource is successful or not within the fifteenth preset time;

sixteenth preset duration; the sixteenth preset time is used for the terminal to determine the failure rate of LBT of one frequency domain resource in the sixteenth preset time;

seventeenth preset time length; the seventeenth preset duration is used for the terminal to determine the success rate of LBT of one frequency domain resource in the seventeenth preset duration;

an eleventh threshold; the eleventh threshold is used for the terminal to determine whether the LBT failure times reaches or exceeds the eleventh threshold so as to determine whether to report the radio link failure;

a twelfth threshold; the twelfth threshold is used for the terminal to determine whether the LBT failure rate within the sixteenth preset duration reaches or exceeds the twelfth threshold so as to determine whether to report a radio link failure;

A thirteenth threshold; the thirteenth threshold is used for the terminal to determine whether the LBT success rate within the seventeenth preset duration reaches or is lower than the thirteenth threshold so as to determine whether to report radio link failure;

eighteenth preset time length; the eighteenth preset time is used for the terminal to determine whether LBT of one frequency domain resource is successful or not within the eighteenth preset time;

a nineteenth preset duration; the nineteenth preset time length is used for the terminal to determine the failure rate of LBT of one frequency domain resource in the nineteenth preset time length;

a twentieth preset duration; the twentieth preset duration is used for the terminal to determine the success rate of performing the LBT on one frequency domain resource in the twentieth preset duration;

a fourteenth threshold; the fourteenth threshold is used for the terminal to determine whether the LBT failure times reach or exceed the fourteenth threshold so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

a twelfth threshold; the twelfth threshold is used for the terminal to determine whether an LBT failure rate within a sixteenth preset duration reaches or exceeds the twelfth threshold, so as to determine whether a physical layer of the terminal reports an LBT failure to an MAC layer of the terminal;

a thirteenth threshold; the thirteenth threshold is used for the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within a seventeenth preset duration so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

The maximum value of the number of uplink frequency domain resources;

the number of uplink frequency domain resources;

and indexing the target frequency domain resource for switching the frequency domain resource when the uplink frequency domain resource carries out BLT.

In the above scheme, the method further comprises:

receiving a first signaling reported by a terminal; the first signaling is used for indicating the frequency domain resource information of LBT of the terminal.

performing LBT on one frequency domain resource;

performing LBT on a plurality of frequency domain resources;

the number of frequency domain resources to perform LBT;

maximum value of the number of frequency domain resources for LBT;

In the above scheme, the method further comprises:

issuing a second signaling to the terminal; the second signaling is used for indicating the terminal to receive downlink frequency domain resource information of downlink data.

receiving data on a downlink frequency domain resource;

receiving data on one downlink frequency domain resource;

receiving data on a plurality of downlink frequency domain resources;

Receiving the number of frequency domain resources of downlink data;

if the LBT is not successful within the twelfth preset time length, carrying out frequency domain resource conversion;

if the LBT failure times reach or exceed the eighth threshold, carrying out frequency domain resource conversion;

performing frequency domain resource conversion when the LBT failure rate reaches or exceeds a ninth threshold within a thirteenth preset time length;

and when the LBT success rate reaches or is lower than a tenth threshold within a fourteenth preset time length, carrying out frequency domain resource conversion.

autonomously determining target frequency domain resources;

and taking the frequency domain resource meeting certain threshold requirements as a target frequency domain resource.

In the above-mentioned scheme, the first step of the method,

the threshold requirement comprises at least one of:

LBT success rate;

LBT success rate within a certain length of time;

number of LBT successes;

number of LBT successes within a certain duration;

number of LBT failures;

number of LBT failures within a certain length of time;

LBT failure rate;

LBT failure rate for a certain duration;

RSRQ；

SINR；

RSRP。

in the above scheme, the method further comprises:

and receiving a third signaling reported by the terminal, wherein the third signaling is used for indicating uplink frequency domain resource information of uplink data transmission of the terminal.

supporting data transmission on an uplink frequency domain resource;

supporting data transmission on a plurality of uplink frequency domain resources;

the method does not support data transmission on a plurality of uplink frequency domain resources;

In the above scheme, the method further comprises:

sending a fourth signaling to the terminal; and the fourth signaling is used for indicating the uplink frequency domain resource information of the terminal for transmitting uplink data.

the number of uplink frequency domain resources for data transmission;

maximum value of uplink frequency domain resource number for data transmission;

An embodiment of the present invention further provides a data transmission device, including: a first monitoring unit and a first transceiver unit; wherein,

the first monitoring unit is configured to perform LBT on a plurality of uplink frequency domain resources; the first transceiver unit is configured to perform data transmission on an uplink frequency domain resource and perform data reception on a downlink frequency domain resource; or,

the first monitoring unit is configured to perform LBT on a plurality of uplink frequency domain resources; the first transceiver unit is configured to perform data transmission on one uplink frequency domain resource and perform data reception on a plurality of downlink frequency domain resources; or,

the first monitoring unit is configured to perform LBT on a plurality of uplink frequency domain resources; the first transceiving unit is configured to transmit data on a plurality of uplink frequency domain resources and receive data on a plurality of downlink frequency domain resources; or,

the first monitoring unit is configured to perform LBT on a plurality of uplink frequency domain resources; the first transceiving unit is configured to perform data transmission on a plurality of uplink frequency domain resources and perform data reception on one downlink frequency domain resource; or,

The first monitoring unit is configured to perform LBT on an uplink frequency domain resource; the first transceiver unit is configured to perform data transmission on an uplink frequency domain resource and perform data reception on a downlink frequency domain resource; or,

the first monitoring unit is configured to perform LBT on an uplink frequency domain resource; the first transceiver unit is configured to perform data transmission on one uplink frequency domain resource and perform data reception on a plurality of downlink frequency domain resources.

In the foregoing scheme, the first transceiver unit is further configured to report a first signaling to a network, where the first signaling is used to instruct the terminal to perform frequency domain resource information of LBT.

In the above solution, the first transceiver unit is further configured to receive a second signaling sent by a network; the second signaling is used for indicating downlink frequency domain resource information of the received downlink data.

In the above-mentioned solution, the first listening unit,

and further configured to perform one of the following operations when performing LBT on the frequency domain resources:

And within the seventh preset time length, the LBT success rate reaches or is lower than a fifth threshold, and frequency domain resource conversion is carried out.

In the foregoing scheme, the first transceiver unit is further configured to report a third signaling to a network, where the third signaling is used to instruct the terminal to perform uplink frequency domain resource information for uplink data transmission.

In the above solution, the first transceiver unit is further configured to receive a fourth signaling sent by a network; and the fourth signaling is used for indicating the uplink frequency domain resource information of the terminal for transmitting uplink data.

An embodiment of the present invention further provides a data transmission device, including: a second monitoring unit and a second transceiver unit; wherein,

the second monitoring unit is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit is configured to perform data transmission on a downlink frequency domain resource and perform data reception on an uplink frequency domain resource; or,

the second monitoring unit is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit is configured to perform data transmission on multiple downlink frequency domain resources and perform data reception on one uplink frequency domain resource; or,

the second monitoring unit is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit is configured to perform data transmission on the multiple downlink frequency domain resources and perform data reception on the multiple uplink frequency domain resources; or,

The second monitoring unit is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit is configured to perform data transmission on one downlink frequency domain resource and perform data reception on a plurality of uplink frequency domain resources; or,

the second monitoring unit is configured to perform LBT on a downlink frequency domain resource; the second transceiver unit is configured to perform data transmission on a downlink frequency domain resource and perform data reception on an uplink frequency domain resource; or,

the second monitoring unit is configured to perform LBT on a downlink frequency domain resource; the second transceiver unit is configured to perform data transmission on multiple downlink frequency domain resources and perform data reception on one uplink frequency domain resource.

In the foregoing solution, the second transceiver unit is further configured to:

In the foregoing solution, the second listening unit is further configured to:

When performing LBT on frequency domain resources, one of the following operations is performed:

and when the LBT success rate reaches or is lower than a tenth threshold within a fourteenth preset time length, the terminal performs frequency domain resource conversion.

An embodiment of the present invention further provides a terminal, including: a first processor and a first communication interface; wherein,

the first communication interface is configured to perform LBT on multiple uplink frequency domain resources under the control of the first processor, perform data transmission on one uplink frequency domain resource, and perform data reception on one downlink frequency domain resource; or,

The first communication interface is configured to perform LBT on multiple uplink frequency domain resources under the control of the first processor, perform data transmission on one uplink frequency domain resource, and perform data reception on multiple downlink frequency domain resources; or,

the first communication interface is configured to perform LBT on a plurality of uplink frequency domain resources under the control of the first processor, perform data transmission on the plurality of uplink frequency domain resources, and perform data reception on the plurality of downlink frequency domain resources; or,

the first communication interface is configured to perform LBT on multiple uplink frequency domain resources under the control of the first processor, perform data transmission on the multiple uplink frequency domain resources, and perform data reception on one downlink frequency domain resource; or,

the first communication interface is configured to perform LBT on one uplink frequency domain resource, perform data transmission on the one uplink frequency domain resource, and perform data reception on the one downlink frequency domain resource under the control of the first processor; or,

the first communication interface is configured to perform LBT on one uplink frequency domain resource, perform data transmission on one uplink BWP, and perform data reception on multiple downlink frequency domain resources under the control of the first processor.

In the foregoing scheme, the first communication interface is further configured to report a first signaling to a network, where the first signaling is used to instruct the terminal to perform frequency domain resource information of LBT.

In the above solution, the first communication interface is further configured to receive a second signaling sent by a network; the second signaling is used for indicating downlink frequency domain resource information of the received downlink data.

In the above solution, the first communication interface,

In the foregoing scheme, the first communication interface is further configured to report a third signaling to a network, where the third signaling is used to instruct the terminal to perform uplink frequency domain resource information for uplink data transmission.

In the above solution, the first communication interface is further configured to receive a fourth signaling sent by a network; and the fourth signaling is used for indicating the uplink frequency domain resource information of the terminal for transmitting uplink data.

An embodiment of the present invention further provides a network device, including: a second processor and a second communication interface; wherein,

the second communication interface is configured to perform LBT on multiple downlink frequency domain resources under the control of the second processor, perform data transmission on one downlink frequency domain resource, and perform data reception on one uplink frequency domain resource; or,

the second communication interface is configured to perform LBT on a plurality of downlink frequency domain resources under the control of the second processor, and is configured to perform data transmission on the plurality of downlink frequency domain resources and perform data reception on one uplink frequency domain resource; or,

the second communication interface is configured to perform LBT on the multiple downlink frequency domain resources under the control of the second processor, and is configured to perform data transmission on the multiple downlink frequency domain resources and perform data reception on the multiple uplink frequency domain resources; or,

the second communication interface is configured to perform LBT on multiple downlink frequency domain resources under the control of the second processor, perform data transmission on one downlink frequency domain resource, and perform data reception on multiple uplink frequency domain resources; or,

the second communication interface is configured to perform LBT on one downlink frequency domain resource under the control of the second processor, and is configured to perform data transmission on one downlink frequency domain resource and perform data reception on one uplink frequency domain resource; or,

The second communication interface is configured to perform LBT on one downlink frequency domain resource under the control of the second processor, and is configured to perform data transmission on multiple downlink frequency domain resources and perform data reception on one uplink frequency domain resource.

In the foregoing solution, the second communication interface is further configured to: receiving a first signaling reported by a terminal; the first signaling is used for indicating the frequency domain resource information of LBT of the terminal.

In the foregoing solution, the second communication interface is further configured to:

performing LBT on frequency domain resources, under control of the second processor, one of:

sending a fourth signaling to the terminal; the fourth signaling is used for indicating the information of the uplink frequency domain resource for the terminal to transmit uplink data.

An embodiment of the present invention further provides a terminal, including: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is configured to execute the steps of any of the above-mentioned methods at the terminal side when running the computer program.

An embodiment of the present invention further provides a network device, including: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is configured to execute the steps of any one of the methods of the network device side when the computer program is executed.

The embodiment of the present invention further provides a storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps of any method on the terminal side are implemented, or the steps of any method on the network device side are implemented.

In the data transmission method, the apparatus, the related device and the storage medium provided in the embodiments of the present invention, the terminal performs corresponding LBT for a plurality of BWPs, and performs data transmission after LBT succeeds and performs data reception on the downlink BWP, and the network device performs corresponding LBT for a plurality of BWPs, and performs data transmission after LBT succeeds and performs data reception on the downlink BWP.

Drawings

Fig. 1 is a schematic flowchart of a method for terminal-side data transmission according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of a method for data transmission at a network device side according to an embodiment of the present invention;

FIG. 3 is a flow chart illustrating a method of data transmission according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another data transmission apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a terminal structure according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a network device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a data transmission system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

The reason why the 5G NR system cannot obtain stable continuous channel resources when operating independently in the unlicensed spectrum is as follows:

the current 5G NR system configures 1 initial BWP for the terminal in a broadcast manner, and the terminal receives paging and system messages on the initial BWP and initiates random access on the initial BWP. If there is more WIFI traffic on the initial BWP, the 5G NR system may have less chance to acquire channel resources, which may affect the system performance. On the other hand, when in the connected state, the terminal only allows 1 BWP to be activated and performs data transceiving on the activated BWP, and if the WIFI interference on the activated BWP is large, the 5G NR system may have less chance to acquire channel resources, which also may affect the system performance.

Based on this, in various embodiments of the invention: configuring a plurality of initial BWPs or activating a plurality of BWPs so as to enable LBT, and after successful LBT, performing data transmission and data reception on the corresponding BWPs.

According to the scheme provided by the embodiment of the invention, as the plurality of working BWPs are configured and LBT is carried out before data is sent, the opportunity of acquiring channel resources by a 5G system can be greatly increased, and the system performance is ensured.

An embodiment of the present invention provides a data transmission method, which is applied to a terminal, and as shown in fig. 1, the method includes:

step 101: determining a plurality of configured frequency domain resources;

such as determining a working BWP for multiple configurations; in particular, a plurality of initial BWPs configured are determined and/or a plurality of BWPs are activated.

Here, the terminal is configured with a plurality of BWPs by the network. That is, a plurality of working BWPs are configured for a terminal by a network.

Specifically, when the terminal is in an idle state, configuring a plurality of initial BWPs for the terminal; activating a plurality of BWPs for the terminal when the terminal is in a connected state.

Step 102: and performing corresponding LBT for a plurality of frequency domain resources, transmitting data after the LBT succeeds, and receiving data on a downlink BWP.

Specifically, for multiple frequency domain resources, the terminal may select one uplink frequency domain resource for LBT, or may select multiple uplink frequency domain resources for LBT; correspondingly, the uplink frequency domain resource for transmitting data may be one or multiple; one or more downlink frequency domain resources for receiving data may be provided.

Specifically, the terminal has the following implementation processes:

first, performing LBT on a plurality of uplink frequency domain resources, performing data transmission on one uplink frequency domain resource, and performing data reception on one downlink frequency domain resource;

Secondly, performing LBT on a plurality of uplink frequency domain resources, performing data transmission on one uplink frequency domain resource, and performing data reception on a plurality of downlink frequency domain resources;

thirdly, performing LBT on a plurality of uplink frequency domain resources, performing data transmission on the plurality of uplink frequency domain resources, and performing data reception on the plurality of downlink frequency domain resources;

fourthly, LBT is carried out on a plurality of uplink frequency domain resources, data transmission is carried out on the plurality of uplink frequency domain resources, and data reception is carried out on one downlink frequency domain resource;

performing LBT on one uplink frequency domain resource, performing data transmission on one uplink frequency domain resource, and performing data reception on one downlink frequency domain resource;

and sixthly, performing LBT on one uplink frequency domain resource, performing data transmission on the uplink frequency domain resource, and performing data reception on a plurality of downlink frequency domain resources.

The uplink frequency domain resource is part of uplink bandwidth; the downlink frequency domain resource is a downlink partial bandwidth.

Here, in an embodiment, the partial bandwidth includes: bandwidth portion BWP and/or a portion of bandwidth within BWP.

In practical application, the implementation process can be selected according to needs.

In practical applications, when the terminal is in an idle state, the transmission and reception of data are mainly data transmission and reception in a random access procedure, such as MSG1, MSG2, MSG3, MSG4, and the like.

When the terminal is in a connected state, the sending and receiving of data may include: transmission and reception of traffic data, or other data (such as scheduling information, etc.), etc.

In practical application, when the number of the uplink frequency domain resources for transmitting data is the same as that of the downlink frequency domain resources for receiving data (for example, both are 1), the uplink frequency domain resources for transmitting data and the downlink frequency domain resources for receiving a receipt may have a certain relationship.

Specifically, in a Time Division Duplex (TDD) system, the relationship between the uplink frequency domain resource and the downlink frequency domain resource may be that the uplink frequency domain resource and the downlink frequency domain resource have the same frequency domain resource index, or the uplink frequency domain resource and the downlink frequency domain resource have different frequency domain resource indexes.

In a Frequency Division Duplex (FDD) system, the relationship between the two may be a pairing relationship between uplink and downlink frequency domain resources, or may be a pairing relationship between uplink and downlink frequency domain resources.

In practical application, in a TDD system, the terminal may preferentially receive downlink data on a downlink frequency domain resource (having the same frequency domain resource index as the uplink frequency domain resource) corresponding to the uplink frequency domain resource.

In an FDD system, the terminal may preferentially receive downlink data on downlink frequency domain resources paired with uplink frequency domain resources.

In an embodiment, performing LBT on a plurality of uplink frequency domain resources, where the data transmission on one uplink frequency domain resource includes one of:

Here, in practical application, the terminal may select one uplink frequency domain resource for data transmission as needed.

Wherein, the LBT success rate means: the ratio of the number of LBTs successful over a period of time to the number of LBTs over the period of time.

In an embodiment, performing LBT on a plurality of uplink frequency domain resources, where the data transmission on the plurality of uplink frequency domain resources includes one of:

In practical application, the corresponding threshold requirement (such as the first threshold and the second threshold) includes at least one of the following:

LBT success rate;

the LBT success rate within a preset time length;

number of LBT successes;

LBT success times within a preset time length are preset;

number of LBT failures;

LBT failure times within a preset time length;

LBT failure rate;

LBT failure rate within a preset time length;

RSRQ；

SINR；

RSRP。

here, the LBT failure rate, corresponding to the LBT success rate, means: the ratio of the number of LBT failures in a time period to the number of LBT failures in the time period.

In practical application, the data transmission on the frequency domain resource meeting the first and second threshold requirements may be understood as follows: the frequency domain resources determine the priority of the frequency domain resources, and the target frequency domain resources are determined to transmit data according to the priority of the frequency domain resources.

The corresponding threshold requirement may be a specified requirement or obtained by network delivery.

The corresponding preset duration (such as the first preset duration, the second preset duration, the third preset duration, and the fourth preset duration) is a duration specified by a protocol, or is obtained by network delivery.

When the terminal transmits data on a plurality of uplink frequency domain resources, for an idle terminal, the MSG1 and MSG3 may transmit on a plurality of frequency domain resources for acquiring channel resources; correspondingly, when the network side also transmits data on a plurality of downlink frequency domain resources, the MSG2 may transmit on a plurality of frequency domain resources for acquiring channel resources; further, for MSG4, the network side selects 1 frequency domain resource to transmit at this time. The selection decision of the network may be determined by LBT success rate and/or interference situation, etc. (which may be understood as being determined by frequency domain resource prioritization).

The MSG3 sent on multiple frequency domain resources uses the same terminal identifier (or cell radio network temporary identifier (C-RNTI)), so that the network knows that multiple received random access requests come from the same terminal.

In an embodiment, when data is transmitted on a plurality of frequency domain resources with a higher LBT success rate within a third preset time period, the method may further include:

Receiving at least one of the following information sent by a network:

an LBT success rate threshold;

a first frequency domain resource number for data transmission;

Here, the terminal may further determine, by using the information received by the network side, a plurality of frequency domain resources with a higher LBT success rate within a third preset duration to perform data transmission.

In an embodiment, when data is transmitted on a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset time period, the method may further include:

receiving at least one of the following information sent by a network:

a second LBT success time threshold;

a second frequency domain resource number for data transmission;

Here, the terminal may further determine, by using the information received by the network side, a plurality of frequency domain resources with a higher LBT success frequency within a third preset duration to perform data transmission.

In practical application, the terminal may obtain information of a plurality of uplink frequency domain resources, so as to perform LBT on the plurality of uplink frequency domain resources.

Based on this, in an embodiment, the obtaining of the information of the multiple uplink frequency domain resources for LBT includes at least one of:

The number of specified uplink frequency domain resources for LBT;

the number of uplink frequency domain resources for LBT issued by the network;

In practical application, the terminal may report uplink frequency domain resource information for performing LBT, so that the network device can know the uplink frequency domain resource information and can receive the transmitted data in time.

Based on this, in an embodiment, the method may further include:

Wherein the content of the first signaling comprises at least one of:

performing LBT on one frequency domain resource;

performing LBT on a plurality of frequency domain resources;

the number of frequency domain resources to perform LBT;

maximum value of the number of frequency domain resources for LBT;

In practical applications, the first signaling may be Radio Resource Control (RRC) signaling or the like.

In practical application, the network may also issue downlink frequency domain resource information to the terminal so that the terminal can know the downlink frequency domain resource information and can receive data sent by the network in time.

Based on this, in an embodiment, the method may further include:

Here, the second signaling may be RRC signaling, broadcast (such as Physical Broadcast Channel (PBCH), etc.), system message, etc.

The content of the second signaling comprises at least one of:

receiving data on a downlink frequency domain resource;

receiving data on one downlink frequency domain resource;

receiving data on a plurality of downlink frequency domain resources;

receiving the number of frequency domain resources of downlink data;

In the working process of each frequency domain resource, a timer or a counter may be introduced, and frequency domain resource switching is performed if data transmission (uplink frequency domain resource) or data reception (downlink frequency domain resource) is not performed within the time length of the timer or within the numerical value of the counter, for example, frequency domain resource switching may be performed according to the priority order of the frequency domain resources.

Here, the duration of the timer or the counter may be configured by the network side, for example, the duration may be configured by a system message (for an idle terminal), an RRC message (for a connected terminal), and the like.

The fact that no data reception (downlink frequency domain resource) is performed within the duration of the timer or within the value of the counter can be understood as: and the uplink data scheduling and/or downlink data receiving and the like are not received in the time length of the timer or the numerical value of the counter.

In practical application, during the running process of the timer or the counter, it may be determined whether a synchronization signal/physical broadcast channel block (SSB) is received, and/or whether other reference symbols determine that network scheduling or downlink data is not received because the base station does not acquire downlink channel resources. The timer or counter of the frequency domain resource conversion is re-timed or counter re-counted if the terminal receives the SSB and/or other reference symbols.

Here, for a terminal in a connected state, the RRC signaling may also be used to notify whether the terminal is scheduled, so as to help the terminal distinguish whether the network scheduling information is not received within a certain time period because the network does not schedule the terminal, or because the network cannot acquire downlink channel resources. If the terminal receives the RRC signaling, the timer or counter of the frequency domain resource conversion is re-timed.

In practical application, in order to send data in time, when no LBT is successful within a certain time duration on corresponding frequency domain resources, frequency domain resource conversion is required.

Based on this, in an embodiment, when performing LBT on the frequency domain resources, the method may further include one of:

In practical application, a timer or a counter may be set, and if the LBT is not successful within the time length of the timer or within the numerical value of the counter, the frequency domain resource switching is performed.

The corresponding preset time duration (for example, the fifth preset time duration, the sixth preset time duration, and the seventh preset time duration) may be a specified time duration, or may be obtained through network delivery.

The third threshold may be a specified LBT failure time threshold, or an LBT failure time threshold issued by the network.

The fourth threshold may be a specified LBT failure rate threshold, or an LBT failure rate threshold issued by the network.

The fifth threshold may be a specified LBT success rate threshold, or an LBT success rate threshold issued by the network.

When the frequency domain resource conversion is performed, the terminal also needs to determine a target frequency domain resource of the frequency domain resource conversion. Wherein, the target frequency domain resource of the frequency domain resource conversion can be determined according to one of the following modes:

autonomously determining target frequency domain resources;

Here, the autonomously determining the target frequency domain resource refers to: the terminal determines the target frequency domain resource by using neither the frequency domain resource meeting a certain threshold requirement as the target frequency domain resource nor the index of the target frequency domain resource issued by the network, but by using other methods, for example, randomly selecting one frequency domain resource as the target frequency domain resource, or sequencing a plurality of frequency domain resources by itself, selecting one frequency domain resource as the target frequency domain resource in sequence, and the like.

In practical applications, the threshold requirement may include at least one of the following:

LBT success rate;

LBT success rate within a certain length of time;

number of LBT successes;

number of LBT successes within a certain duration;

number of LBT failures;

number of LBT failures within a certain length of time;

LBT failure rate;

LBT failure rate for a certain duration;

RSRQ；

SINR；

RSRP。

wherein the specific time length can be determined according to the requirement.

Here, the frequency domain resource meeting a certain threshold requirement is taken as a target frequency domain resource, and may be understood as: the frequency domain resources determine the priority of the frequency domain resources, and the target frequency domain resources are determined according to the priority of the frequency domain resources.

In practical application, in order to timely obtain the link condition, when no LBT is successful within a certain time duration on the corresponding frequency domain resource, an LBT failure needs to be reported. In addition, the terminal may report the radio link failure to the network side.

As an implementation manner, when the number of radio link failures monitored by the terminal reaches a certain threshold, the terminal reports the radio link failures to the network side;

as an embodiment, when LBT fails, the terminal physical layer reports the LBT failure to the MAC layer. When the number of LBT failures received by the MAC layer reaches a certain threshold, the terminal considers that a radio link failure is detected (for example, the terminal counts a counter of the number of radio link failures by 1).

As an implementation manner, when the number of LBT failures reaches a certain threshold (for example, every time an LBT failure is monitored, a counter for counting the number of LBT failures by the terminal is incremented by 1), the physical layer of the terminal reports the LBT failure to the MAC layer. When the number of LBT failures received by the MAC layer reaches a certain threshold, the terminal considers that a radio link failure is monitored (for example, the counter for counting the number of radio link failures by the terminal is incremented by 1).

Based on this, in an embodiment, when performing LBT on frequency domain resources, the method further comprises one of:

if the LBT is not successful within the fifteenth preset time, the terminal reports the failure of the wireless link;

when the LBT failure times reach or exceed an eleventh threshold, the terminal reports the radio link failure;

when the LBT failure rate reaches or exceeds a twelfth threshold within a sixteenth preset time length, the terminal reports the radio link failure;

and when the LBT success rate reaches or is lower than a thirteenth threshold within the seventeenth preset time, the terminal reports the radio link failure.

In practical application, a timer or a counter may be set, and if the LBT is not successful within the time length of the timer or within the numerical value of the counter, the radio link failure is reported.

The corresponding preset time duration (for example, a fifteenth preset time duration, a sixteenth preset time duration, and a seventeenth preset time duration) may be a specified time duration, or may be obtained through network delivery.

The eleventh threshold may be a specified LBT failure time threshold, or an LBT failure time threshold issued by the network.

The twelfth threshold may be a specified LBT failure rate threshold, or an LBT failure rate threshold issued by the network.

The thirteenth threshold may be a specified LBT success rate threshold, or an LBT success rate threshold issued by the network.

In an embodiment, when LBT is performed on frequency domain resources, the method further comprises one of:

if the LBT is not successful within the eighteenth preset time, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

The corresponding preset time duration (for example, the eighteenth preset time duration, the nineteenth preset time duration, and the twentieth preset time duration) may be a specified time duration, or may be obtained through network delivery.

The fourteenth threshold may be a specified LBT failure time threshold, or an LBT failure time threshold issued by the network.

The fifteenth threshold may be a specified LBT failure rate threshold, or an LBT failure rate threshold issued by the network.

The sixteenth threshold may be a specified LBT success rate threshold, or an LBT success rate threshold issued by the network.

In practical application, the terminal may also report frequency domain resource information for data transmission, that is, report the capability of uplink frequency domain resources supported by the terminal for data transmission, so that a network side can accurately receive data, and may indicate how the terminal transmits data on the uplink frequency domain resources based on the capability of the terminal.

Based on this, in an embodiment, the method may further include:

Wherein the content of the third signaling comprises at least one of:

supporting data transmission on an uplink frequency domain resource;

In practical applications, the third signaling may be RRC signaling or the like.

In an embodiment, the method may further comprise:

Wherein the content of the fourth signaling comprises at least one of:

the number of uplink frequency domain resources for data transmission;

maximum value of uplink frequency domain resource number for data transmission;

Here, in practical application, the fourth signaling may be RRC signaling or the like.

Correspondingly, an embodiment of the present invention further provides a data transmission method, which is applied to a network device, and as shown in fig. 2, the method includes:

step 201: configuring a plurality of frequency domain resources for a terminal;

such as configuring multiple working BWPs; specifically, a plurality of initial BWPs are configured and/or a plurality of BWPs are activated for the terminal.

Here, the network device may be a base station, and in a 5G system, the base station is a next generation node b (gnb).

Step 202: and performing corresponding LBT for a plurality of frequency domain resources, transmitting data after the LBT succeeds, and receiving data on an uplink BWP.

Specifically, for multiple frequency domain resources, the network device may select one uplink frequency domain resource for LBT, or may select multiple uplink frequency domain resources for LBT; correspondingly, the uplink frequency domain resource for transmitting data may be one or multiple; one or more downlink frequency domain resources for receiving data may be provided.

Specifically, the network device has the following implementation processes:

first, performing LBT on a plurality of downlink frequency domain resources, performing data transmission on one downlink frequency domain resource, and performing data reception on one uplink frequency domain resource;

Secondly, performing LBT on a plurality of downlink frequency domain resources, performing data transmission on the plurality of downlink frequency domain resources, and performing data reception on one uplink frequency domain resource;

thirdly, performing LBT on a plurality of downlink frequency domain resources, performing data transmission on the plurality of downlink frequency domain resources, and performing data reception on the plurality of uplink frequency domain resources;

fourthly, LBT is carried out on a plurality of downlink frequency domain resources, data transmission is carried out on one downlink frequency domain resource, and data reception is carried out on a plurality of uplink frequency domain resources;

performing LBT on one downlink frequency domain resource, performing data transmission on one downlink frequency domain resource, and performing data reception on one uplink frequency domain resource;

and sixthly, performing LBT on one downlink frequency domain resource, performing data transmission on a plurality of downlink frequency domain resources, and performing data reception on one uplink frequency domain resource.

Here, the partial bandwidth includes: BWP and/or a portion of bandwidth within BWP.

In practical application, when the number of the downlink frequency domain resources for transmitting data is the same as that of the uplink frequency domain resources for receiving data (for example, both are 1), the downlink frequency domain resources for transmitting data and the uplink frequency domain resources for receiving a receipt may have a certain relationship.

Specifically, in the TDD system, the relationship between the uplink frequency domain resource and the downlink frequency domain resource may be that the uplink frequency domain resource and the downlink frequency domain resource have the same frequency domain resource index, or the uplink frequency domain resource and the downlink frequency domain resource have different frequency domain resource indexes.

In an FDD system, the relationship between the two may be a pairing relationship between uplink and downlink frequency domain resources, or may be a pairing relationship between uplink and downlink frequency domain resources.

In practical application, in the TDD system, the network device may preferentially receive uplink data on an uplink frequency domain resource (having the same frequency domain resource index as the downlink frequency domain resource) corresponding to the downlink frequency domain resource.

In an FDD system, the network device may preferentially receive uplink data on uplink frequency domain resources paired with downlink frequency domain resources.

In an embodiment, LBT is performed on a plurality of downlink frequency domain resources, and the downlink data transmission on one downlink frequency domain resource includes one of:

Here, in practical application, the network device may select one downlink frequency domain resource for data transmission as needed.

In an embodiment, performing LBT on a plurality of downlink frequency domain resources, where performing downlink data transmission on the plurality of downlink frequency domain resources includes one of:

In practical application, the corresponding threshold requirement (for example, the sixth threshold and the seventh threshold) includes at least one of the following:

LBT success rate;

the LBT success rate within a preset time length;

number of LBT successes;

LBT success times within a preset time length are preset;

number of LBT failures;

LBT failure times within a preset time length;

LBT failure rate;

LBT failure rate within a preset time length;

RSRQ；

SINR；

RSRP。

in practical application, the data transmission on the frequency domain resource meeting the requirements of the sixth threshold and the seventh threshold may be understood as follows: the frequency domain resources determine the priority of the frequency domain resources, and the target frequency domain resources are determined to transmit data according to the priority of the frequency domain resources.

When the network device sends data on a plurality of downlink frequency domain resources, for an idle terminal, the MSG2 may send on a plurality of frequency domain resources for acquiring channel resources; for MSG4, the network side selects 1 frequency domain resource to transmit at this time. The selection decision of the network may be determined by LBT success rate and/or interference situation, etc. (which may be understood as being determined by frequency domain resource prioritization).

In practical application, the network device may send some information to the terminal, so that the terminal may perform data transmission, for example, LBT may be performed on corresponding frequency domain resources, uplink frequency domain resources for transmitting data may be selected, frequency domain resources for LBT may be selected, and the like.

Based on this, in an embodiment, the method may further include:

issuing at least one of the following information to the terminal:

the maximum value of the number of uplink frequency domain resources;

the number of uplink frequency domain resources;

Based on this, in an embodiment, the method may further include:

In practical application, the network device may also issue downlink frequency domain resource information to the terminal, so that the terminal can know the downlink frequency domain resource information and can receive data sent by the network device in time.

Based on this, in an embodiment, the method may further include:

Here, the second signaling may be RRC signaling, broadcast (PBCH), system message, or the like.

The content of the second signaling comprises at least one of:

receiving data on a downlink frequency domain resource;

receiving data on one downlink frequency domain resource;

receiving data on a plurality of downlink frequency domain resources;

receiving the number of frequency domain resources of downlink data;

In the working process of each frequency domain resource, a timer or a counter may be introduced, and frequency domain resource switching is performed if data transmission (downlink frequency domain resource) or data reception (uplink frequency domain resource) is not performed within the time length of the timer or within the numerical value of the counter, for example, frequency domain resource switching may be performed according to the priority order of the frequency domain resources.

Here, when sending downlink data, the terminal may send a corresponding SSB and/or other reference symbols to the terminal, so that the terminal may determine, accordingly, whether the network scheduling is not received or the downlink data is because the base station does not acquire downlink channel resources. The timer or counter of the frequency domain resource conversion is re-timed or counter re-counted if the terminal receives the SSB and/or other reference symbols.

When the frequency domain resource conversion is performed, the network device further needs to determine a target frequency domain resource of the frequency domain resource conversion. Wherein, the target frequency domain resource of the frequency domain resource conversion can be determined according to one of the following modes:

autonomously determining target frequency domain resources;

Here, the autonomously determining the target frequency domain resource refers to: the network device does not use the frequency domain resource meeting a certain threshold requirement as the target frequency domain resource, but uses other methods to determine, for example, randomly selects one frequency domain resource as the target frequency domain resource, or sorts a plurality of frequency domain resources by itself, selects one frequency domain resource as the target frequency domain resource in sequence, and so on.

LBT success rate;

LBT success rate within a certain length of time;

number of LBT successes;

number of LBT successes within a certain duration;

number of LBT failures;

number of LBT failures within a certain length of time;

LBT failure rate;

LBT failure rate for a certain duration;

RSRQ；

SINR；

RSRP。

In practical application, the terminal may also report frequency domain resource information for data transmission, that is, report the capability of uplink frequency domain resources supported by the terminal for data transmission, so that the network device can accurately receive data, and may indicate how the terminal transmits data on the uplink frequency domain resources based on the capability of the terminal.

Based on this, in an embodiment, the method may further include:

In an embodiment, the method may further comprise:

Wherein, in practical application, the fourth signaling may be RRC signaling, broadcast (PBCH), system message, or the like.

An embodiment of the present invention further provides a data transmission method, as shown in fig. 3, the method includes:

step 300: the network equipment configures a plurality of working frequency domain resources for the terminal;

specifically, a plurality of initial frequency domain resources are configured and/or a plurality of frequency domain resources are activated for the terminal.

Step 301: the terminal carries out corresponding LBT aiming at a plurality of frequency domain resources, carries out data transmission after the LBT succeeds, and carries out data reception on the downlink frequency domain resources;

step 302: and the network equipment performs corresponding LBT (local binary transmission) on the plurality of frequency domain resources, performs data transmission after the LBT is successful, and performs data reception on the uplink frequency domain resources.

Here, it should be noted that: step 301 and step 302 are not performed in a sequential order.

In addition, the specific processing procedures of the terminal and the network device have been described in detail above, and are not described herein again.

In the method provided by the embodiment of the invention, the terminal carries out corresponding LBT aiming at a plurality of frequency domain resources, the data is sent after the LBT succeeds, and the data is received on the downlink frequency domain resources, and the network equipment carries out corresponding LBT aiming at a plurality of frequency domain resources, the data is sent after the LBT succeeds, and the data is received on the downlink frequency domain resources.

The present invention will be described in further detail with reference to the following application examples.

In the application embodiment, BWP is taken as an example to describe the data transmission process based on frequency domain resources.

Application embodiment 1

In the embodiment of the application, the terminal is in an idle state, and the network configures 3 initial downlink BWPs for the terminal, wherein the BWPs are BWP-1, BWP-2 and BWP-3 respectively; meanwhile, the work priority of the 3 BWPs is BWP-1> BWP-2> BWP-3, that is, BWP-1 has the highest priority, BWP-2 has the second priority, and BWP-3 has the lowest priority. In addition, the network also configures timers for the terminal, and the timers corresponding to BWP-1 and BWP-2 are respectively timer1 and timer 2.

The terminal first operates on BWP-1, starts timer1, transitions to BWP-2 if timer1 expires, the terminal does not receive SIB1 and/or does not receive random access MSG2 or MSG4 at BWP-1, starts timer2, and transitions to BWP-3 to operate if timer2 expires, the terminal does not receive SIB1 at BWP-2.

Application example two

In the embodiment of the application, the terminal is in an idle state, and the network configures 3 initial uplink BWPs for the terminal, which are BWP-1, BWP-2 and BWP-3 respectively; meanwhile, the work priority of the 3 BWPs is BWP-1> BWP-2> BWP-3, that is, BWP-1 has the highest priority, BWP-2 has the second priority, and BWP-3 has the lowest priority. In addition, the network also configures counters for the terminals, and the timers corresponding to BWP-1 and BWP-2 are counter1 and counter2, respectively.

The terminal first operates on BWP-1, starts counter1, transitions to BWP-2 if counter1 expires and the terminal does not send MSG1 or MSG3 on BWP-1, starts counter2, and transitions to BWP-3 to operate if counter2 expires and the terminal does not send MSG1 or MSG3 on BWP-2.

Application example three

In the embodiment of the application, the terminal is in a connected state, and the network configures 4 downlink BWPs for the terminal, which are BWP-1, BWP-2, BWP-3 and BWP-4 respectively; the work priority of 4 BWPs is BWP-1> BWP-2> BWP-3> BWP-4, i.e. BWP-1 has the highest priority, BWP-2 has the second priority, BWP-3 has the third priority and BWP-4 has the lowest priority. In addition, the network also configures timers for the terminal, and the timers corresponding to BWP-1, BWP-2 and BWP-3 are timer1, timer2 and timer3 respectively.

The terminal first operates on BWP-1, starts timer1, if timer1 expires, the terminal does not receive SSB and/or other reference symbols and/or RRC signaling informing the terminal whether scheduled and/or downlink scheduling and/or downlink data at BWP-1, then the terminal transitions to BWP-2, starts timer2, if timer2 expires, the terminal does not receive SSB and/or other reference symbols and/or RRC signaling informing the terminal whether scheduled and/or downlink scheduling and/or downlink data at BWP-2, the terminal transitions to BWP-3, starts timer3, if timer3 expires, the terminal does not receive SSB and/or other reference symbols and/or RRC signaling informing the terminal whether scheduled and/or downlink scheduling and/or downlink data at BWP-3, then the terminal transitions to BWP-4 for operation.

Application example four

In the embodiment of the application, the terminal is in a connected state, and the network configures 4 uplink BWPs for the terminal, which are BWP-1, BWP-2, BWP-3 and BWP-4 respectively; the work priority of 4 BWPs is BWP-1> BWP-2> BWP-3> BWP-4, i.e. BWP-1 has the highest priority, BWP-2 has the second priority, BWP-3 has the third priority and BWP-4 has the lowest priority. In addition, the network also configures timers for the terminal, and the timers corresponding to BWP-1, BWP-2 and BWP-3 are timer1, timer2 and timer3 respectively.

The terminal firstly works on BWP-1, starts timer1, if timer1 expires, the terminal does not acquire channel resources at BWP-1 and can not transmit uplink data, then the terminal switches to BWP-2, starts timer2, if timer2 expires, the terminal does not acquire channel resources at BWP-2 and can not transmit uplink data, then the terminal switches to BWP-3, starts timer3, if timer3 expires, the terminal can not acquire channel resources at BWP-3 and can not transmit uplink data, then the terminal switches to BWP-4 to work.

As can be seen from the above description, a plurality of BWPs have work priorities, and a BWP transition timer, a counter, is introduced, and after the timer or counter expires, the terminal automatically transitions to the BWP work of the next priority according to the BWP priority. The terminal receives the system message and the paging according to the priority configuration, completes the random access and receives and transmits the uplink and downlink data.

In order to implement the method of the terminal side in the embodiment of the present invention, an embodiment of the present invention further provides a data apparatus, which is disposed on the terminal, and as shown in fig. 4, the apparatus includes: a first listening unit 41 and a first transmitting/receiving unit 42; wherein,

the first listening unit 41 is configured to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is configured to perform data transmission on an uplink frequency domain resource and perform data reception on a downlink frequency domain resource; or,

the first listening unit 41 is configured to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is configured to perform data transmission on one uplink frequency domain resource and perform data reception on a plurality of downlink frequency domain resources; or,

the first listening unit 41 is configured to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is configured to transmit data on a plurality of uplink frequency domain resources and receive data on a plurality of downlink frequency domain resources; or,

the first listening unit 41 is configured to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is configured to perform data transmission on multiple uplink frequency domain resources and perform data reception on one downlink frequency domain resource; or,

The first listening unit 41 is configured to perform LBT on an uplink frequency domain resource; the first transceiver unit 42 is configured to perform data transmission on an uplink frequency domain resource and perform data reception on a downlink frequency domain resource; or,

the first listening unit 41 is configured to perform LBT on an uplink frequency domain resource; the first transceiver unit 42 is configured to perform data transmission on one uplink frequency domain resource and perform data reception on a plurality of downlink frequency domain resources.

In an embodiment, LBT is performed on a plurality of uplink frequency domain resources, and the first transceiver unit 42 performs data transmission on one uplink frequency domain resource, where the data transmission includes one of:

In an embodiment, LBT is performed on a plurality of uplink frequency domain resources, and the first transceiver unit 42 performs data transmission on the plurality of uplink frequency domain resources, where the LBT includes one of:

In an embodiment, when performing data transmission on the multiple frequency domain resources with a higher LBT success rate in the third preset duration, the first transceiver unit 42 is further configured to:

receiving at least one of the following information sent by a network:

an LBT success rate threshold;

a first frequency domain resource number for data transmission;

Here, the first transceiver unit 42 may further determine, by using the information received by the network side, a plurality of frequency domain resources with a higher LBT success rate within a third preset duration for data transmission.

In an embodiment, when data is transmitted on a plurality of frequency domain resources with a higher number of successful LBTs within a fourth preset time period, the first transceiver unit 42 is further configured to:

Receiving at least one of the following information sent by a network:

a second LBT success time threshold;

a second frequency domain resource number for data transmission;

Here, the first transceiver unit 42 may further determine, by using the information received by the network side, a plurality of frequency domain resources with higher LBT success times within a third preset time duration for data transmission.

In practical application, the first listening unit 41 may obtain information of a plurality of uplink frequency domain resources, so as to perform LBT on the plurality of uplink frequency domain resources.

Based on this, in an embodiment, the obtaining, by the first listening unit 41, information of a plurality of uplink frequency domain resources of LBT includes at least one of:

the number of specified uplink frequency domain resources for LBT;

the number of uplink frequency domain resources for LBT issued by the network;

In practical application, the uplink frequency domain resource information of the LBT performed by the terminal itself can be reported so that the network device can know the information and then can receive the transmitted data in time.

Based on this, in an embodiment, the first transceiver unit 42 is further configured to report a first signaling to a network, where the first signaling is used to instruct the terminal to perform frequency domain resource information for LBT.

Based on this, in an embodiment, the first transceiver unit 42 is further configured to receive a second signaling sent by a network; the second signaling is used for indicating downlink frequency domain resource information of the received downlink data.

Based on this, in an embodiment, the first listening unit 41 is further configured to, when performing LBT on the frequency domain resource, perform one of the following operations:

When performing frequency domain resource conversion, the first listening unit 41 further needs to determine a target frequency domain resource for frequency domain resource conversion. Wherein, the target frequency domain resource of the frequency domain resource conversion can be determined according to one of the following modes:

autonomously determining target frequency domain resources;

In practical application, in order to timely obtain the link condition, when no LBT is successful within a certain time duration on the corresponding frequency domain resource, the radio link failure needs to be reported. Meanwhile, the reporting may be that the terminal reports to the network side.

In an embodiment, the first listening unit 41 is further configured to, when performing LBT on frequency domain resources, perform one of the following operations:

In practical application, the frequency domain resource information for the terminal to transmit data may also be reported, that is, the capability of the uplink frequency domain resource supported by the terminal to transmit data is reported, so that the network side can accurately receive data, and how the terminal transmits data on the uplink frequency domain resource may also be indicated based on the capability of the terminal.

Based on this, in an embodiment, the first transceiver unit 42 is further configured to report a third signaling to the network, where the third signaling is used to instruct the terminal to perform uplink frequency domain resource information for uplink data transmission.

In an embodiment, the first transceiver unit 42 is further configured to receive a fourth signaling sent by a network; and the fourth signaling is used for indicating the uplink frequency domain resource information of the terminal for transmitting uplink data.

In practical application, the first listening unit 41 may be implemented by a processor in the data transmission device in combination with a communication interface; the first transceiving unit 42 may be implemented by a processor in a data transmission device in combination with a communication interface.

In order to implement the method on the network device side in the embodiment of the present invention, an embodiment of the present invention further provides a data transmission apparatus, which is disposed on a network device, and as shown in fig. 5, the apparatus includes: a second monitoring unit 51 and a second transmitting/receiving unit 52; wherein,

the second listening unit 51 is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit 52 is configured to perform data transmission on a downlink frequency domain resource and perform data reception on an uplink frequency domain resource; or,

the second listening unit 51 is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit 52 is configured to perform data transmission on multiple downlink frequency domain resources and perform data reception on one uplink frequency domain resource; or,

The second listening unit 51 is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit 52 is configured to perform data transmission on multiple downlink frequency domain resources and perform data reception on multiple uplink frequency domain resources; or,

the second listening unit 51 is configured to perform LBT on a plurality of downlink frequency domain resources; the second transceiver unit 52 is configured to perform data transmission on one downlink frequency domain resource and perform data reception on multiple uplink frequency domain resources; or,

the second listening unit 51 is configured to perform LBT on a downlink frequency domain resource; the second transceiver unit 52 is configured to perform data transmission on a downlink frequency domain resource and perform data reception on an uplink frequency domain resource; or,

the second listening unit 51 is configured to perform LBT on a downlink frequency domain resource; the second transceiver unit 52 is configured to perform data transmission on multiple downlink frequency domain resources and perform data reception on one uplink frequency domain resource.

In an embodiment, LBT is performed on a plurality of downlink frequency domain resources, and the second transceiver unit 52 performs downlink data transmission on one downlink frequency domain resource, where the downlink data transmission includes one of:

In an embodiment, LBT is performed on a plurality of downlink frequency domain resources, and the second transceiver unit 52 performs downlink data transmission on the plurality of downlink frequency domain resources, including one of:

Based on this, in an embodiment, the second transceiver unit 52 is further configured to issue at least one of the following information to the terminal:

the maximum value of the number of uplink frequency domain resources;

the number of uplink frequency domain resources;

Based on this, in an embodiment, the second transceiver unit 52 is further configured to:

Based on this, in an embodiment, the second listening unit 51 is further configured to:

When performing frequency domain resource conversion, the second listening unit 51 further needs to determine a target frequency domain resource for frequency domain resource conversion. Wherein, the target frequency domain resource of the frequency domain resource conversion can be determined according to one of the following modes:

Autonomously determining target frequency domain resources;

In an embodiment, the second transceiver unit 52 is further configured to:

It should be noted that: in practical application, the second listening unit 51 may be implemented by a processor in the data transmission device in combination with a communication interface; the second transceiver unit 52 may be implemented by a communication interface in a data transmission device.

It should be noted that: in the data transmission device provided in the above embodiment, only the division of the program modules is exemplified when data transmission is performed, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device may be divided into different program modules to complete all or part of the processing described above. In addition, the data transmission device and the data transmission method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method on the terminal side in the embodiment of the present invention, an embodiment of the present invention further provides a terminal, as shown in fig. 6, where the terminal 60 includes:

the first communication interface 61 can perform information interaction with other equipment;

and the first processor 62 is connected with the first communication interface 61 to realize information interaction with a network device, and is used for executing the method provided by one or more technical schemes of the terminal side when running a computer program. And the computer program is stored on the first memory 63.

Specifically, the first communication interface 61 is configured to perform LBT on multiple uplink frequency domain resources under the control of the first processor 62, perform data transmission on one uplink frequency domain resource, and perform data reception on one downlink frequency domain resource; or,

the first communication interface 61 is configured to perform LBT on multiple uplink frequency domain resources under the control of the first processor 62, perform data transmission on one uplink frequency domain resource, and perform data reception on multiple downlink frequency domain resources; or,

the first communication interface 61 is configured to perform LBT on multiple uplink frequency domain resources, perform data transmission on the multiple uplink frequency domain resources, and perform data reception on the multiple downlink frequency domain resources under the control of the first processor 62; or,

The first communication interface 61 is configured to perform LBT on multiple uplink frequency domain resources, perform data transmission on the multiple uplink frequency domain resources, and perform data reception on one downlink frequency domain resource under the control of the first processor 62; or,

the first communication interface 61 is configured to perform LBT on one uplink frequency domain resource, perform data transmission on one uplink frequency domain resource, and perform data reception on one downlink frequency domain resource under the control of the first processor 62; or,

the first communication interface 61 is configured to perform LBT on one uplink frequency domain resource, perform data transmission on the one uplink frequency domain resource, and perform data reception on a plurality of downlink frequency domain resources under the control of the first processor 62.

In an embodiment, LBT is performed on a plurality of uplink frequency domain resources, and the first communication interface 61 performs data transmission on one uplink frequency domain resource, where the data transmission includes one of:

In an embodiment, LBT is performed on a plurality of uplink frequency domain resources, and the first communication interface 61 performs data transmission on the plurality of uplink frequency domain resources, where the LBT includes one of:

In an embodiment, when data is transmitted on the multiple frequency domain resources with a higher LBT success rate in the third preset time period, the first communication interface 61 is further configured to:

receiving at least one of the following information sent by a network:

an LBT success rate threshold;

a first frequency domain resource number for data transmission;

Here, the first processor 62 may further determine, by using the information received by the network side, a plurality of frequency domain resources with a higher LBT success rate within a third preset time duration for data transmission.

In an embodiment, when data is transmitted on a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset time duration, the first communication interface 61 is further configured to:

receiving at least one of the following information sent by a network:

a second LBT success time threshold;

a second frequency domain resource number for data transmission;

Here, the first processor 62 may further determine, by using the information received by the network side, a plurality of frequency domain resources with higher LBT success times within a third preset time duration for data transmission.

In an embodiment, the obtaining, by the first communication interface 61, the information of the multiple uplink frequency domain resources of the LBT includes at least one of:

the number of specified uplink frequency domain resources for LBT;

the number of uplink frequency domain resources for LBT issued by the network;

In an embodiment, the first communication interface 61 is further configured to report a first signaling to a network, where the first signaling is used to instruct the terminal to perform frequency domain resource information for LBT.

In an embodiment, the first communication interface 61 is further configured to receive a second signaling sent by a network; the second signaling is used for indicating downlink frequency domain resource information of the received downlink data.

In an embodiment, the first communication interface 61 is further configured to perform one of the following operations when performing LBT on frequency domain resources:

When performing frequency domain resource conversion, the first communication interface 61 further needs to determine a target frequency domain resource for frequency domain resource conversion. Wherein, the target frequency domain resource of the frequency domain resource conversion can be determined according to one of the following modes:

Autonomously determining target frequency domain resources;

In an embodiment, the first communication interface 61 is further configured to report a third signaling to the network, where the third signaling is used to instruct the terminal to perform uplink frequency domain resource information for uplink data transmission.

In an embodiment, the first communication interface 61 is further configured to receive a fourth signaling sent by a network; and the fourth signaling is used for indicating the uplink frequency domain resource information of the terminal for transmitting uplink data.

It should be noted that: the specific processing procedures of the first processor 62 and the first communication interface 61 are described in detail in the method embodiment, and are not described herein again.

Of course, in practice, the various components in the terminal 60 are coupled together by a bus system 64. It will be appreciated that the bus system 64 is used to enable communications among the components. The bus system 64 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 64 in fig. 6.

The first memory 63 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal 60. Examples of such data include: any computer program for operating on the terminal 60.

The method disclosed in the above embodiments of the present invention may be applied to the first processor 62, or implemented by the first processor 62. The first processor 62 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the first processor 62. The first Processor 62 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 62 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 63, and the first processor 62 reads the information in the first memory 63 and, in conjunction with its hardware, performs the steps of the foregoing method.

In an exemplary embodiment, the terminal 60 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program modules, and in order to implement the method on the network device side according to the embodiment of the present invention, as shown in fig. 7, the network device 70 includes:

a second communication interface 71, which can perform information interaction with a terminal;

and the second processor 72 is connected with the second communication interface 71 to implement information interaction with a terminal, and is used for executing the method provided by one or more technical solutions of the network device side when running a computer program. And said computer program is stored on said second memory 73.

Specifically, the second communication interface 71 is configured to perform LBT on a plurality of downlink frequency domain resources under the control of the second processor 72, perform data transmission on one downlink frequency domain resource, and perform data reception on one uplink frequency domain resource; or,

The second communication interface 71, configured to perform LBT on multiple downlink frequency domain resources under the control of the second processor 72, perform data transmission on multiple downlink frequency domain resources, and perform data reception on one uplink frequency domain resource; or,

the second communication interface 71, configured to perform LBT on multiple downlink frequency domain resources under the control of the second processor 72, perform data transmission on the multiple downlink frequency domain resources, and perform data reception on the multiple uplink frequency domain resources; or,

the second communication interface 71 is configured to perform LBT on multiple downlink frequency domain resources under the control of the second processor 72, perform data transmission on one downlink frequency domain resource, and perform data reception on multiple uplink frequency domain resources; or,

the second communication interface 71 is configured to perform LBT on one downlink frequency domain resource under the control of the second processor 72, and is configured to perform data transmission on one downlink frequency domain resource and perform data reception on one uplink frequency domain resource; or,

the second communication interface 71 is configured to perform LBT on one downlink frequency domain resource under the control of the second processor 72, and is configured to perform data transmission on multiple downlink frequency domain resources and perform data reception on one uplink frequency domain resource.

In an embodiment, LBT is performed on a plurality of downlink frequency domain resources, and the second communication interface 71 performs downlink data transmission on one downlink frequency domain resource, where the downlink data transmission includes one of:

In an embodiment, LBT is performed on a plurality of downlink frequency domain resources, and the second communication interface 71 performs downlink data transmission on the plurality of downlink frequency domain resources, where the LBT includes one of:

In an embodiment, the second communication interface 71 is further configured to issue at least one of the following information to the terminal:

the maximum value of the number of uplink frequency domain resources;

the number of uplink frequency domain resources;

In an embodiment, the second communication interface 71 is further configured to: receiving a first signaling reported by a terminal; the first signaling is used for indicating the frequency domain resource information of LBT of the terminal.

In an embodiment, the second communication interface 71 is further configured to:

When performing frequency domain resource conversion, the second communication interface 71 further needs to determine a target frequency domain resource of the frequency domain resource conversion. Wherein, the target frequency domain resource of the frequency domain resource conversion can be determined according to one of the following modes:

autonomously determining target frequency domain resources;

It should be noted that: the specific processing procedures of the second processor 72 and the second communication interface 71 are detailed in the method embodiment, and are not described herein again.

Of course, in practice, the various components of the network device 70 are coupled together by a bus system 74. It will be appreciated that the bus system 74 is used to enable communications among the components of the connection. The bus system 74 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 74 in fig. 7.

The second memory 73 in the embodiment of the present invention is used to store various types of data to support the operation of the network device 70. Examples of such data include: any computer program for operating on network device 70.

The method disclosed in the above embodiments of the present invention may be applied to the second processor 72, or implemented by the second processor 72. The second processor 72 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the second processor 72. The second processor 72 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 72 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 73, and the second processor 72 reads the information in the second memory 73 and, in conjunction with its hardware, performs the steps of the foregoing method.

In an exemplary embodiment, the network device 70 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the foregoing methods.

It is understood that the memories (first memory 63, second memory 73) of embodiments of the present invention may be either volatile or nonvolatile memories, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a data transmission system, as shown in fig. 8, where the system includes:

a network device 81, configured to configure a plurality of working frequency domain resources for the terminal; corresponding LBT is carried out on a plurality of frequency domain resources, data are sent after the LBT succeeds, and data are received on the uplink frequency domain resources;

and the terminal 82 is configured to perform corresponding LBT on the multiple frequency domain resources, perform data transmission after the LBT is successful, and perform data reception on the downlink frequency domain resources.

It should be noted that: the specific processing procedures of the network device 81 and the terminal 82 have been described in detail above, and are not described in detail here.

In an exemplary embodiment, the present invention further provides a storage medium, i.e. a computer storage medium, in particular a computer readable storage medium, for example comprising a first memory 63 storing a computer program, which is executable by a first processor 62 of the terminal 60 to perform the steps of the aforementioned terminal side method. For another example, the second memory 73 may be configured to store a computer program that is executable by the second processor 72 of the network device 70 to perform the steps of the network device side method described above. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A data transmission method, applied to a terminal, the method comprising:

performing Listen Before Talk (LBT) on a plurality of uplink frequency domain resources, performing data transmission on one uplink frequency domain resource, and performing data reception on one downlink frequency domain resource; or,

2. The method of claim 1, wherein the uplink frequency domain resource is an uplink partial bandwidth; the downlink frequency domain resource is a downlink partial bandwidth.

3. The method of claim 2, wherein the partial bandwidth comprises: bandwidth portion BWP and/or a portion of bandwidth within BWP.

4. The method of claim 1, wherein LBT is performed on a plurality of uplink frequency domain resources, and wherein performing data transmission on one uplink frequency domain resource comprises one of:

5. The method of claim 1, wherein LBT is performed on a plurality of uplink frequency domain resources, and wherein performing data transmission on the plurality of uplink frequency domain resources comprises one of:

6. The method of claim 4 or 5, wherein the respective threshold requirements comprise at least one of:

LBT success rate;

the LBT success rate within a preset time length;

number of LBT successes;

LBT success times within a preset time length are preset;

number of LBT failures;

LBT failure times within a preset time length;

LBT failure rate;

LBT failure rate within a preset time length;

reference signal received quality, RSRQ;

Signal to interference plus noise ratio, SINR;

reference signal received power, RSRP.

7. The method according to claim 5, wherein when data transmission is performed on the plurality of frequency domain resources with higher LBT success rates within the third preset time period, the method further comprises:

receiving at least one of the following information sent by a network:

an LBT success rate threshold;

a first frequency domain resource number for data transmission;

8. The method of claim 5, wherein when data transmission is performed on the plurality of frequency domain resources with higher LBT success times within a fourth preset time period, the method further comprises:

receiving at least one of the following information sent by a network:

a second LBT success time threshold;

a second frequency domain resource number for data transmission;

9. The method of claim 1, further comprising:

10. The method of claim 9, wherein the content of the first signaling comprises at least one of:

Performing LBT on one frequency domain resource;

performing LBT on a plurality of frequency domain resources;

the number of frequency domain resources to perform LBT;

maximum value of the number of frequency domain resources for LBT;

11. The method according to any of claims 1 to 5, wherein the obtaining of the information of the plurality of uplink frequency domain resources for LBT comprises at least one of:

the number of specified uplink frequency domain resources for LBT;

the number of uplink frequency domain resources for LBT issued by the network;

12. The method of claim 1, further comprising:

13. The method of claim 12, wherein the content of the second signaling comprises at least one of:

receiving data on a downlink frequency domain resource;

receiving data on one downlink frequency domain resource;

Receiving data on a plurality of downlink frequency domain resources;

receiving data on a plurality of downlink frequency domain resources;

receiving the number of frequency domain resources of downlink data;

14. The method of claim 1, wherein when performing LBT on frequency domain resources, the method further comprises one of:

15. The method of claim 1, wherein when performing LBT on frequency domain resources, the method further comprises one of:

16. The method of claim 1, wherein when performing LBT on frequency domain resources, the method further comprises one of:

17. The method of claim 14, wherein when performing frequency domain resource conversion, the method further comprises:

autonomously determining target frequency domain resources;

18. The method of claim 17, wherein the threshold requirement comprises at least one of:

LBT success rate;

LBT success rate within a certain length of time;

number of LBT successes;

number of LBT successes within a certain duration;

number of LBT failures;

number of LBT failures within a certain length of time;

LBT failure rate;

LBT failure rate for a certain duration;

RSRQ；

SINR；

RSRP。

19. the method of claim 1, further comprising:

20. The method of claim 19, wherein the content of the third signaling comprises at least one of:

performing data transmission on an uplink frequency domain resource;

21. The method of claim 1, 2, 3, 4, 5, or 19, further comprising:

22. The method of claim 21, wherein the content of the fourth signaling comprises at least one of:

the number of uplink frequency domain resources for data transmission;

maximum value of uplink frequency domain resource number for data transmission;

23. A data transmission method, applied to a network device, the method comprising:

24. The method of claim 23, wherein the uplink frequency domain resource is an uplink partial bandwidth; the downlink frequency domain resource is a downlink partial bandwidth.

25. The method of claim 24, wherein the portion of the bandwidth comprises: BWP and/or a portion of bandwidth within BWP.

26. The method of claim 23, wherein LBT is performed on a plurality of downlink frequency-domain resources, and wherein the performing downlink data transmission on one downlink frequency-domain resource comprises one of:

27. The method of claim 23, wherein LBT is performed on a plurality of downlink frequency-domain resources, and wherein the performing downlink data transmission on the plurality of downlink frequency-domain resources comprises one of:

28. The method of claim 26 or 27, wherein the threshold requirement comprises at least one of:

LBT success rate;

the LBT success rate within a preset time length;

number of LBT successes;

LBT success times within a preset time length are preset;

number of LBT failures;

LBT failure times within a preset time length;

LBT failure rate;

LBT failure rate within a preset time length;

RSRQ；

SINR；

RSRP。

29. The method of claim 23, further comprising:

issuing at least one of the following information to the terminal:

the maximum value of the number of uplink frequency domain resources;

the number of uplink frequency domain resources;

30. The method of claim 23, further comprising:

31. The method of claim 30, wherein the content of the first signaling comprises at least one of:

Performing LBT on one frequency domain resource;

performing LBT on a plurality of frequency domain resources;

the number of frequency domain resources to perform LBT;

maximum value of the number of frequency domain resources for LBT;

32. The method of claim 23, further comprising:

33. The method of claim 32, wherein the content of the second signaling comprises at least one of:

receiving data on a downlink frequency domain resource;

receiving data on one downlink frequency domain resource;

receiving data on a plurality of downlink frequency domain resources;

receiving the number of frequency domain resources of downlink data;

34. The method of claim 23, wherein when performing LBT on frequency domain resources, the method further comprises one of:

35. The method of claim 34, wherein in performing the frequency domain resource transformation, the method further comprises:

autonomously determining target frequency domain resources;

36. The method of claim 35, wherein the threshold requirement comprises at least one of:

LBT success rate;

LBT success rate within a certain length of time;

number of LBT successes;

number of LBT successes within a certain duration;

number of LBT failures;

number of LBT failures within a certain length of time;

LBT failure rate;

LBT failure rate for a certain duration;

RSRQ；

SINR；

RSRP。

37. the method of claim 23, further comprising:

38. The method of claim 37, wherein the content of the third signaling comprises at least one of:

supporting data transmission on an uplink frequency domain resource;

39. The method of claim 23, 24, 25, 36, 27 or 38, further comprising:

40. The method of claim 39, wherein the content of the fourth signaling comprises at least one of:

the number of uplink frequency domain resources for data transmission;

maximum value of uplink frequency domain resource number for data transmission;

41. A data transmission apparatus, comprising: a first monitoring unit and a first transceiver unit; wherein,

42. A data transmission apparatus, comprising: a second monitoring unit and a second transceiver unit; wherein,

43. A terminal, comprising: a first processor and a first communication interface; wherein,

44. A network device, comprising: a second processor and a second communication interface; wherein,

45. A terminal, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

Wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 22 when running the computer program.

46. A network device, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any of claims 23 to 40 when running the computer program.

47. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 22 or the steps of the method of any one of claims 23 to 40 when executed by a processor.