CN113709867A

CN113709867A - Data transmission method, device and equipment

Info

Publication number: CN113709867A
Application number: CN202010435937.7A
Authority: CN
Inventors: 雷珍珠; 高兴航; 赵思聪
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-11-26

Abstract

The embodiment of the application provides a data transmission method, a device and equipment, wherein the method comprises the following steps: the method comprises the steps that terminal equipment receives first information sent by network equipment, wherein the first information comprises the number N of transmission blocks TB, and N is an integer greater than or equal to 1; and the terminal equipment sends uplink data to the network equipment on the time-frequency resources corresponding to the N TBs in the first period. The data transmission efficiency is improved.

Description

Data transmission method, device and equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, and device.

Background

In wireless communications, a terminal device may have multiple states, e.g., connected, idle, inactive, etc.

When the terminal device is in an idle state or an inactive state, and when the terminal device needs to send uplink data, the terminal device may send the uplink data by configuring a dedicated periodic uplink pre-configured resource (PUR) for the terminal device, however, only one Transport Block (TB) can be sent in one PUR period, which results in low data transmission efficiency.

Disclosure of Invention

The embodiment of the application provides a data transmission method, a data transmission device and data transmission equipment, and data transmission efficiency is improved.

In a first aspect, an embodiment of the present application provides a data transmission method, including:

the method comprises the steps that terminal equipment receives first information sent by network equipment, wherein the first information comprises the number N of transmission blocks TB, and N is an integer greater than or equal to 1;

and the terminal equipment sends uplink data to the network equipment on the time-frequency resources corresponding to the N TBs in the first period.

In a possible implementation manner, the first period is an uplink preconfigured resource PUR period, and the time-frequency resources corresponding to the N TBs are PURs in the first period.

In a possible implementation manner, the state of the terminal device is an idle state or an inactive state.

In a possible implementation manner, the receiving, by the terminal device, the first information sent by the network device includes:

and the terminal equipment receives the first information in a search space window corresponding to a second period, wherein the second period is a period before the first period.

In one possible embodiment, the second period is a period before the first period.

In a possible embodiment, the first information is at least one of the following information: downlink control information DCI, radio resource control RRC message.

In a possible implementation manner, there are M time-frequency resources corresponding to TBs in the first period, where M is an integer greater than 1, and M is greater than or equal to N, where,

the positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs are predefined.

In a possible embodiment, the corresponding time-frequency resources of the N TBs are: and the time frequency resources corresponding to the first N TBs in the time frequency resources corresponding to the M TBs.

the first information further includes positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs.

In a possible implementation, the first information includes M bits, the M bits include N first bit values, and positions of the N first bit values in the M bits are used to indicate: and the positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs.

In a possible implementation manner, the sending, by the terminal device, uplink data to the network device on the time-frequency resources corresponding to the N TBs in the first period includes:

the terminal equipment determines that the number of TBs corresponding to the uplink data is X, wherein X is a positive integer less than or equal to N;

and the terminal equipment sends the uplink data to the network equipment on time-frequency resources corresponding to the X TBs, wherein the time-frequency resources corresponding to the N TBs comprise the time-frequency resources corresponding to the X TBs.

In a possible implementation manner, before the terminal device sends the uplink data to the network device on the time-frequency resources corresponding to the X TBs, the method further includes:

and the terminal equipment sends second information to network equipment, wherein the second information comprises the number X of the transport blocks TB sent by the terminal equipment in the first period.

In a possible implementation manner, the resource used by the terminal device to send the second information is a pre-configured resource.

In a possible implementation manner, the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs are predefined.

In a possible embodiment, the corresponding time-frequency resources of the X TBs are: and the time frequency resource corresponding to the first X TBs in the time frequency resources corresponding to the N TBs.

In one possible implementation, the second information further includes: and the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs.

In a second aspect, an embodiment of the present application provides a data transmission method, including:

the method comprises the steps that network equipment sends first information to terminal equipment, wherein the first information comprises the number N of transmission blocks TB, and N is an integer greater than or equal to 1;

and the network equipment detects the uplink data sent by the terminal equipment in the time frequency resources corresponding to the N TBs in the first period.

In one possible implementation, the network device sends the first information to the terminal device, including:

and the network equipment sends the first information to the terminal equipment in a search space window corresponding to a second period, wherein the second period is a period before the first period.

In a possible embodiment, the corresponding time-frequency resources of the N TBs are: time frequency resources corresponding to the first N TBs in the time frequency resources corresponding to the M TBs

In a possible implementation, the first information includes M bits, the M bits include N first bit values, and a position of the N first bit values in the M bits is used to indicate: and the positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs.

In a possible implementation manner, before the network device detects uplink data sent by the terminal device in time-frequency resources corresponding to N TBs in a first period, the method further includes:

and the network equipment receives second information sent by the terminal equipment, wherein the second information comprises the number X of the transmission blocks TB sent by the terminal equipment on the PUR in the first period.

In one possible embodiment, the network device receives the second information on a pre-configured resource.

In a third aspect, an embodiment of the present application provides a data transmission apparatus, including: a receiving module and a transmitting module, wherein,

the receiving module is configured to receive first information sent by a network device, where the first information includes a number N of transport blocks TB, where N is an integer greater than or equal to 1;

the sending module is configured to send uplink data to the network device on the time-frequency resources corresponding to the N TBs in the first period.

In a possible implementation, the receiving module is specifically configured to:

and receiving the first information in a search space window corresponding to a second period, wherein the second period is a period before the first period.

In a possible implementation manner, the sending module is specifically configured to:

determining the number of TBs corresponding to the uplink data to be X, wherein X is a positive integer less than or equal to N;

and sending the uplink data to the network equipment on time-frequency resources corresponding to the X TBs, wherein the time-frequency resources corresponding to the N TBs comprise the time-frequency resources corresponding to the X TBs.

In a possible implementation manner, the sending module is further configured to send, to a network device, second information before the sending module sends the uplink data to the network device on a time-frequency resource corresponding to X TBs, where the second information includes the number X of transport blocks TB sent by the terminal device in the first period.

In a possible embodiment, the resource used by the sending module to send the second information is a pre-configured resource.

In a fourth aspect, an embodiment of the present application provides a data transmission apparatus, including: a sending module and a processing module, wherein,

the sending module is configured to send first information to a terminal device, where the first information includes a number N of transport blocks TB, where N is an integer greater than or equal to 1;

the processing module is configured to detect uplink data sent by the terminal device in time-frequency resources corresponding to the N TBs in the first period.

and sending the first information to the terminal equipment in a search space window corresponding to a second period, wherein the second period is a period before the first period.

In a possible embodiment, the apparatus further comprises a receiving module, wherein,

the receiving module is configured to receive second information sent by the terminal device before the sending module detects uplink data sent by the terminal device in time-frequency resources corresponding to the N TBs in the first period, where the second information includes a number X of transport blocks TB sent by the terminal device on the PUR in the first period.

In one possible embodiment, the receiving module receives the second information on a pre-configured resource.

In a fifth aspect, an embodiment of the present application provides a terminal device, including: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory, causing the processor to perform the data transfer method of any of the first aspects.

In a sixth aspect, an embodiment of the present application provides a network device, including: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory, causing the processor to perform the data transfer method of any of the second aspects.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is used to implement the data transmission method according to any one of the first aspect.

In an eighth aspect, the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is configured to implement the data transmission method according to any one of the second aspects.

According to the data transmission method, the data transmission device and the data transmission equipment, the network equipment can dynamically allocate the time-frequency resources in each PUR period to the terminal equipment, and dynamically indicate the number of the time-frequency resources (represented by the number of the TBs) to the terminal equipment through the first information, so that the terminal equipment carries out uplink data transmission according to the time-frequency resources allocated to the terminal equipment by the network equipment, and further the terminal equipment can transmit a plurality of TBs in one PUR period, and further the data transmission efficiency is improved.

Drawings

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

fig. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present application;

FIG. 3 is a diagram of a PUR and a search space window provided in an embodiment of the present application;

fig. 4 is a schematic diagram of a data transmission method according to an embodiment of the present application;

fig. 5 is a schematic diagram of another data transmission method according to an embodiment of the present application;

fig. 6 is a schematic diagram of another data transmission method provided in the embodiment of the present application;

fig. 7 is a schematic flowchart of another data transmission method according to an embodiment of the present application;

fig. 8 is a schematic diagram of another data transmission method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another data transmission device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another data transmission apparatus according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

For ease of understanding, first, the concepts related to the present application will be explained.

The terminal equipment: the terminal equipment can be deployed on land, including indoors or outdoors, and is handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), a wearable terminal device, and the like. The terminal device according to the embodiment of the present application may also be referred to as a terminal, a User Equipment (UE), an access terminal device, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The terminal equipment may also be fixed or mobile.

A network device: may be a device for communicating with a mobile device. The network device may be an Access Point (AP) in a WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved node B (eNB or eNodeB) in LTE, a base station in 5G, a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network or a network device in a PLMN network that is evolved in the future.

Next, a communication system to which the embodiment of the present application is applied will be described with reference to fig. 1.

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application. Referring to fig. 1, the communication system includes a network device 101 and a terminal device 102, and wireless communication is performed between the network device 101 and the terminal device 102. The communication system may include: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a Long Term Evolution (LTE) system, or a 5th-generation (5G) system. Of course, the communication system may be other, and this is not particularly limited in this embodiment of the present application.

In the NR system, the state of the terminal device includes Radio Resource Control (RRC) RRC Connected state (RRC Connected state), RRC idle state (RRC idle state), RRC inactive state (RRC inactive state), and the like. When the terminal device is in an RRC idle state or an RRC inactive state, and the terminal device needs to send uplink data, the terminal device may enter a connected state through a random access process and send the uplink data in the connected state. The terminal device usually needs a long time to enter a connection state through a random access process, which results in a long delay for the terminal device to send uplink data. In order to reduce the delay of sending uplink data by the terminal device in the RRC idle state or the RRC inactive state, a dedicated PUR may be configured for the terminal device in the idle state or the inactive state, so that the terminal device may send uplink data through the PUR.

In order to solve the foregoing technical problem, an embodiment of the present application provides a data transmission method, where in a PUR period, a network device may dynamically allocate a time-frequency resource in each PUR period to a terminal device, and dynamically indicate, by using first information, a number of the time-frequency resources (represented by a number of TBs) to the terminal device, so that the terminal device performs uplink data transmission according to the time-frequency resources allocated to the terminal device by the network device, and further, the terminal device may transmit multiple TBs in one PUR period, thereby improving data transmission efficiency.

The technical solutions shown in the examples of the present application will be described in detail below with specific examples. It should be noted that the following embodiments may exist alone or in combination with each other. The description of the same or similar contents will not be repeated in different embodiments.

Fig. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present application. Referring to fig. 2, the method may include:

s201, the network equipment sends first information to the terminal equipment.

The first information comprises the number N of the TBs, wherein N is an integer greater than or equal to 1.

The first information is used for indicating that the number of the time frequency resources allocated to the terminal equipment by the network equipment is the number of the time frequency resources corresponding to the N TBs. The time-frequency resource allocated by the network device to the terminal device may be a PUR.

Optionally, the state of the terminal device is an idle state or an inactive state.

In this embodiment, the network device may allocate a periodic PUR and a downlink search space window (SS-window) to the terminal device. The terminal equipment can send uplink data to the network equipment through the PUR, the network equipment sends a response message to the terminal equipment after receiving the uplink data, and the terminal equipment can monitor the response message sent to the network equipment through the search space window.

Optionally, when the network device receives the uplink data and correctly analyzes the uplink data, the response message sent by the network device to the terminal device may be physical layer ACK information or an RRC response message. When the network device does not successfully receive the uplink data or does not correctly parse the uplink data, the network device sends a failure response (e.g., a Fallback indication) or a retransmission scheduling instruction to the terminal device. The network device may send the ACK message or the Fallback indication message to the terminal device through the ACK DCI, that is, the network device carries the ACK message or the Fallback indication message through the ACK DCI. The network device may carry the retransmission scheduling instruction through the normal uplink scheduling DCI.

The PUR and the search space window will be described below with reference to fig. 3.

Fig. 3 is a schematic diagram of a PUR and a search space window provided in an embodiment of the present application. Referring to fig. 3, each PUR cycle includes a PUR and a search space window, and the PUR precedes the search space window in the time domain.

The network device may send the first information to the terminal device in the search space window after receiving uplink data sent by the terminal device through the PUR. Optionally, the first information may be DCI or RRC message. For example, the DCI may be an ACK DCI or an uplink retransmission scheduling DCI (e.g., an uplink scheduling DCI for carrying retransmission scheduling information). The RRC message may be an RRC response message. The RRC response message may be used to update the PUR configuration or carry a paging message, and the like, and the PUR configuration may include a PUR period, a number of resources included in one PUR period, and the like.

When the first information is carried by the ACK DCI, the number of TBs may be carried in idle bits of the ACK DCI. When the first information is carried by the uplink retransmission scheduling DCI, a new bit field may be added to the uplink retransmission scheduling DCI, and the number of TBs is carried by the new bit field. When the first information is carried by the RRC response message, a new information field may be added to the RRC message, and the number of TBs is carried through the new field.

Alternatively, the number N of TBs may be expressed in the following two ways.

One possible implementation:

the number N of TBs is represented by binary data. For example, assuming that a maximum of 4 TBs can be transmitted within one PUR period, the number N of TBs can be represented by two bits of binary data.

For example, 00 indicates that the number N of TBs is 0, 01 indicates that the number N of TBs is 1,10 indicates that the number N of TBs is 2, and 11 indicates that the number N of TBs is 3. Alternatively, 00 indicates that the number N of TBs is 1, 01 indicates that the number N of TBs is 2,10 indicates that the number N of TBs is 3, and 11 indicates that the number N of TBs is 4.

In this possible implementation, the positions of the time-frequency resources corresponding to the N TBs may be predefined. For example, assume that there are M time-frequency resources corresponding to TBs in the first period, where M is an integer greater than 1, and M is greater than or equal to N, where positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs are predefined. On the time-frequency resources corresponding to M-N TBs except the N TBs among the M TBs, the terminal device cannot be used to transmit uplink data, and the network device may perform other scheduling through the time-frequency resources corresponding to the M-N TBs.

The corresponding time-frequency resources of the N TBs may be: and the time frequency resources corresponding to the first N TBs in the time frequency resources corresponding to the M TBs. Or, the corresponding time-frequency resources of the N TBs may be: and the time frequency resources corresponding to the last N TBs in the time frequency resources corresponding to the M TBs. Certainly, the positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs may also be other, which is not specifically limited in this embodiment of the present application.

In this manner, the number of bits included in the first information is small, so that the data transmission efficiency is high.

Another possible implementation:

the first information further includes positions of time-frequency resources corresponding to the N TBs. For example, assuming that there are time-frequency resources corresponding to M TBs in the first period, the first information further includes positions of the time-frequency resources corresponding to N TBs in the time-frequency resources corresponding to M TBs. It should be noted that, on the time-frequency resources corresponding to M-N TBs, except for the N TBs, in the M TBs, the terminal device cannot be used to send uplink data, and the network device may perform other scheduling through the time-frequency resources corresponding to the M-N TBs.

In this possible implementation manner, the first information includes M bits, the M bits include N first bit values, and positions of the N first bit values in the M bits are used to indicate: the positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs.

For example, assuming that a maximum of 4 TBs are transmitted in one PUR period, the first information may include 4 bits, and the bit value of the 4 bits may be the first bit value or the second bit value. Assuming that the first bit value is 1 and the second bit value is 0, 0000 indicates that the number N of TBs is 0,1000 indicates that the number N of TBs is 1, and the position of N ═ 1 TB among the 4 TBs is the first, 1010 indicates that the number N of TBs is 2, and the position of N ═ 2 TB among the 4 TBs is the first and the third.

S202, the terminal equipment sends uplink data to the network equipment on the time frequency resources corresponding to the N TBs in the first period.

Optionally, the first period is a PUR period, and the time-frequency resources corresponding to the N TBs are the PURs in the first period.

Optionally, the network device may send the first information in a downlink search space window corresponding to the second period (may also be referred to as a downlink search space window in the second period), and correspondingly, the terminal device receives the first information in the downlink search space window in the second period. The second period may be a PUR period, and the second period may be a period before the first period, for example, the second period may be a period before the first period.

And if the number of the TBs occupied by the uplink data sent by the terminal equipment in the first period is N, the terminal equipment sends the uplink data to the network equipment on the time-frequency resources corresponding to the N TBs in the first period. If the number X of TBs occupied by the uplink data sent by the terminal device in the first period is less than N, the terminal device may send the uplink data to the network device on the time-frequency resource corresponding to any X TBs of the N TBs.

S203, the network equipment detects the uplink data sent by the terminal equipment on the time frequency resources corresponding to the N TBs in the first period.

Optionally, the network device may perform blind detection on the time-frequency resources corresponding to the N TBs in the first period to obtain the uplink data sent by the terminal device.

The method shown in the embodiment of fig. 2 will be described in detail below with reference to fig. 4 to 6.

Fig. 4 is a schematic diagram of a data transmission method according to an embodiment of the present application. Please refer to fig. 4, which includes PUR cycle 1 and PUR cycle 2.

In the PUR period 1, the network device allocates time-frequency resources corresponding to 4 TBs to the terminal device, and the terminal device sends uplink data to the network device on the time-frequency resources corresponding to the 4 TBs. It should be noted that, if before the PUR period 1, the terminal device has not sent uplink data through the PUR, and the terminal device has not received the first information, in the PUR period 1, the network device may allocate time-frequency resources to the terminal device according to a preset configuration (for example, a PUR configuration), and the terminal device also sends uplink data in the time-frequency resources indicated in the preset configuration.

After the network device receives the uplink data sent by the terminal device, assuming that the network device successfully analyzes the uplink data, the network device sends ACK DCI to the terminal device. The network device may also determine the amount of time-frequency resources allocated to the terminal device in the PUR period 2 according to information such as resource conditions and uplink services of the terminal device. Assuming that the network device determines to allocate time-frequency resources corresponding to 2 TBs to the terminal device in the PUR period 2, the network device may carry 10 in ACK DCI sent to the terminal device, for example, set the value of the preset bit field in the ACK DCI to 10.

After the terminal device sends the uplink data, the terminal device monitors the downlink data sent by the network device in the search space window of the PUR period 1, receives the ACK DCI in the search space window, analyzes the ACK DCI, and determines that the network device allocates time-frequency resources corresponding to 2 TBs to the terminal device in the next PUR period (PUR period 2). The terminal equipment further determines that the time-frequency resources corresponding to the 2 TBs are: and time frequency resources corresponding to the first two TBs in the 4 TBs existing in the PUR period 2.

In the PUR period 2, the terminal device sends uplink data through the time-frequency resource network device corresponding to 2 TBs (the first TB and the second TB).

Fig. 5 is a schematic diagram of another data transmission method according to an embodiment of the present application. Please refer to fig. 5, which includes PUR cycle 1 and PUR cycle 2.

After the network device receives the uplink data sent by the terminal device, assuming that the network device successfully analyzes the uplink data, the network device sends ACK DCI to the terminal device. The network device may also determine the amount of time-frequency resources allocated to the terminal device in the PUR period 2 according to information such as resource conditions and uplink services of the terminal device. Assuming that the network device determines to allocate time-frequency resources corresponding to 2 TBs to the terminal device in the PUR period 2, and the network device further determines that the time-frequency resources corresponding to the 2 TBs are time-frequency resources corresponding to the 1 st TB and the 3 rd TB, the network device may carry 1010 the ACK DCI sent to the terminal device, for example, the value of the preset domain in the ACK DCI is set to 1010.

After the terminal device sends the uplink data, the terminal device monitors the downlink data sent by the network device in a search space window of a PUR period 1, receives ACK DCI in the search space window, analyzes the ACK DCI, and determines that the network device allocates time-frequency resources corresponding to 2 TBs to the terminal device in the next PUR period (PUR period 2), wherein the two time-frequency resources are time-frequency resources corresponding to the 1 st TB and the 3 rd TB.

In the PUR period 2, the terminal device sends uplink data through the time-frequency resource network device corresponding to 2 TBs (the 1 st TB and the 3 rd TB).

Fig. 6 is a schematic diagram of another data transmission method according to an embodiment of the present application. Please refer to fig. 6, which includes PUR cycle 1 and PUR cycle 2.

In the PUR period 1, the network device allocates time-frequency resources corresponding to 2 TBs to the terminal device, and the terminal device sends uplink data to the network device on the time-frequency resources corresponding to the 2 TBs. It should be noted that, if before the PUR period 1, the terminal device has not sent uplink data through the PUR, and the terminal device has not received the first information, in the PUR period 1, the network device may allocate time-frequency resources to the terminal device according to a preset configuration (for example, a PUR configuration), and the terminal device also sends uplink data in the time-frequency resources indicated in the preset configuration.

After the network device receives the uplink data sent by the terminal device, assuming that the network device successfully analyzes the uplink data, the network device sends an RRC response message to the terminal device. The network device may also determine the amount of time-frequency resources allocated to the terminal device in the PUR period 2 according to information such as resource conditions and uplink services of the terminal device. Assuming that the network device determines to allocate time-frequency resources corresponding to 3 TBs to the terminal device in the PUR period 2, and the network device further determines that the time-frequency resources corresponding to the 3 TBs are time-frequency resources corresponding to the 1 st TB, the 3 rd TB, and the 4 th TB, the network device may carry 1011 in an RRC response message sent to the terminal device, for example, a value of a preset domain in the RRC response message is set to 1011.

After the terminal device sends the uplink data, the terminal device monitors the downlink data sent by the network device in a search space window of a PUR period 1, receives an RRC response message in the search space window, analyzes the RRC response message, and determines that the network device allocates time-frequency resources corresponding to 3 TBs to the terminal device in the next PUR period (PUR period 2), wherein the two time-frequency resources are time-frequency resources corresponding to the 1 st TB, the 3 rd TB and the 4 th TB.

In the PUR period 2, the terminal device sends uplink data through the time-frequency resource network device corresponding to the 3 TBs (the 1 st TB, the 3 rd TB, and the 4 th TB).

According to the data transmission method provided by the embodiment of the application, the network device can dynamically allocate time-frequency resources in each PUR period to the terminal device, and dynamically indicate the number of the time-frequency resources (represented by the number of TBs) to the terminal device through the first information, so that the terminal device performs uplink data transmission according to the time-frequency resources allocated to the terminal device by the network device, and further the terminal device can transmit a plurality of TBs in one PUR period, and further the data transmission efficiency is improved.

On the basis of any of the above embodiments, the data transmission method is further described in detail below with reference to fig. 7.

Fig. 7 is a flowchart illustrating another data transmission method according to an embodiment of the present application. Referring to fig. 7, the method may include:

s701, the terminal equipment sends uplink data to the network equipment through the PUR in the second period.

The second period may be a PUR period.

If the second period is the first PUR period of the terminal device, the network device may allocate time-frequency resources to the terminal device according to a preset configuration, and correspondingly, the terminal device may determine the time-frequency resources allocated to the terminal device by the network device according to the preset configuration, and send uplink data on the time-frequency resources allocated to the terminal device.

If the second period is not the first PUR period of the terminal device, and the terminal device receives the first information in a period before the second period, and the first information indicates the time-frequency resource allocated to the terminal device by the network device in the second period, the terminal device determines the time-frequency resource allocated to the terminal device by the network device according to the first information, and transmits uplink data to the terminal device on the time-frequency resource allocated to the terminal device.

S702, the network equipment sends ACK DCI to the terminal equipment according to the uplink data, wherein the ACK DCI comprises the number N of the TBs.

In the embodiment shown in fig. 7, the first information is described as an example of ACK DCI, but of course, the first information may be other information, and this is not specifically limited in this embodiment of the present application. The execution process of S702 may refer to the execution process of S201, and is not described herein again.

S703, the terminal device determines that the number of TBs corresponding to the uplink data to be transmitted in the first period is X.

Wherein X is a positive integer less than or equal to N.

The second period is a period before the first period, for example, the second period may be a period before the first period.

S704, the terminal device sends second information to the network device, wherein the second information comprises the number X of the transport blocks TB sent by the terminal device in the first period.

The time when the terminal device sends the second information and the starting time of the PUR in the first period may have a fixed time offset (offset), and through the fixed time offset, the corresponding relationship between the second information and the PUR in the first period may be determined.

Optionally, the resource used by the terminal device to send the second information is a pre-configured resource.

The second information may further include positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs.

Optionally, the second information includes N bits, the N bits include X first bit values, and positions of the X first bit values in the N bits are used to indicate: the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs.

For example, assuming that the number of N is 4, the second information may include 4 bits, and the bit value of the 4 bits may be the first bit value or the second bit value. Assuming that the first bit value is 1, the second bit value is 0,1000 indicates that X is 1, and the X ═ 1 TB has the first position among the 4 TBs, 1010 indicates X2, and the X ═ 2 TB has the first and third positions among the 4 TBs.

When the second information does not include the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs, the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs may be predefined. For example, the corresponding time-frequency resources of X TBs may be predefined as: and the time frequency resources corresponding to the first X TBs in the time frequency resources corresponding to the N TBs.

For example, assuming that N is 4 and X is 2, the second indication information is 10 indicating that 2 TBs are transmitted, and the time-frequency resources corresponding to the 2 TBs may be: and the time frequency resources corresponding to the first two TBs in the time frequency resources corresponding to the 4 TBs.

In this manner, the number of bits included in the second information is small, so that the data transmission efficiency is higher.

S705, the terminal device sends uplink data to the network device on the time-frequency resources corresponding to the X TBs in the first period.

The time frequency resources corresponding to the N TBs comprise time frequency resources corresponding to the X TBs.

If the second information does not include the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs, the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs may be determined according to the predefinition.

If the second information includes the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs, the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs may be determined according to the second information.

And S706, the network equipment detects uplink data on the time-frequency resources corresponding to the X TBs in the first period according to the second information.

Optionally, the network device may perform blind detection on the time-frequency resources corresponding to the X TBs in the first period, so as to obtain the uplink data sent by the terminal device.

The method of the embodiment of fig. 7 will be described in detail with reference to fig. 8.

Fig. 8 is a schematic diagram of another data transmission method according to an embodiment of the present application. Please refer to fig. 8, which includes PUR cycle 1 and PUR cycle 2.

Before the PUR period 1, assuming that the terminal device has determined that the network device has allocated time-frequency resources corresponding to 3 TBs to the terminal device, but the terminal device has only uplink data corresponding to 2 TBs for transmission, the terminal device sends second information to the network device, where the second information includes 110 to indicate that the number of the TBs corresponding to the uplink data is 2, and the terminal device sends the uplink data through the time-frequency resources corresponding to the 1 st and 2 nd TBs.

In the PUR period 1, the terminal device sends uplink data to the network device on the time-frequency resources corresponding to the 1 st TB and the 2 nd TB. Correspondingly, the network device performs blind detection on the time-frequency resources corresponding to the 1 st TB and the 2 nd TB according to the second information to acquire the uplink data.

After the network device receives the uplink data sent by the terminal device, assuming that the network device successfully analyzes the uplink data, the network device sends ACK DCI to the terminal device. The network device may also determine the amount of time-frequency resources allocated to the terminal device in the PUR period 2 according to information such as resource conditions and uplink services of the terminal device. Assuming that the network device determines to allocate time-frequency resources corresponding to 4 TBs to the terminal device in the PUR period 2, the network device may carry 1111 in the ACK DCI sent to the terminal device, for example, set the value of the preset field in the ACK DCI to 1111.

After the terminal device sends the uplink data, the terminal device monitors the downlink data sent by the network device in the search space window of the PUR period 1, receives the ACK DCI in the search space window, analyzes the ACK DCI, and determines that the network device allocates time-frequency resources corresponding to 4 TBs to the terminal device in the next PUR period (PUR period 2). Assuming that the terminal device only has uplink data corresponding to 2 TBs in the PUR period 2 for transmission, the terminal device sends second information to the network device, where the second information includes 1010 to indicate that the number of the TBs corresponding to the uplink data is 2, and the terminal device sends the uplink data through the time-frequency resources corresponding to the 1 st and 3 rd TBs.

In the PUR period 2, the terminal device sends uplink data through the time-frequency resource network device corresponding to 2 TBs (the 1 st TB and the 3 rd TB). Correspondingly, the network device performs blind detection on the time-frequency resources corresponding to the 1 st TB and the 3 rd TB according to the second information to acquire the uplink data.

In the embodiments shown in fig. 7 to 8, the terminal device indicates, to the network device, the resource used by the network device to send the uplink data through the second information, so that the network device can perform blind detection on the uplink data according to the second information, thereby avoiding the network device performing blind detection on all resources, reducing the times of performing blind detection by the network device, improving data processing efficiency, and saving energy consumption of the network device.

Fig. 9 is a schematic structural diagram of a data transmission device according to an embodiment of the present application. The data transmission device 10 may be provided in a terminal device. Referring to fig. 9, the data transmission device 10 may include: a receiving module 11 and a transmitting module 12, wherein,

the receiving module 11 is configured to receive first information sent by a network device, where the first information includes a number N of transport blocks TB, where N is an integer greater than or equal to 1;

the sending module 12 is configured to send uplink data to the network device on the time-frequency resources corresponding to the N TBs in the first period.

The data transmission device provided in the embodiment of the present application can implement the technical solutions shown in the above method embodiments, and the implementation principles and beneficial effects thereof are similar, and are not described herein again.

In a possible implementation manner, the sending module 12 is specifically configured to:

In a possible implementation manner, the sending module 12 is further configured to send, to a network device, second information before the sending module sends the uplink data to the network device on a time-frequency resource corresponding to X TBs, where the second information includes the number X of transport blocks TB sent by the terminal device in the first period.

Fig. 10 is a schematic structural diagram of another data transmission device according to an embodiment of the present application. The data transmission device 20 may be provided in a network device. Referring to fig. 10, the data transmission device 20 may include: a sending module 21 and a processing module 22, wherein,

the sending module 21 is configured to send first information to a terminal device, where the first information includes a number N of transport blocks TB, where N is an integer greater than or equal to 1;

the processing module 22 is configured to detect uplink data sent by the terminal device in time-frequency resources corresponding to the N TBs in the first period.

In a possible implementation manner, the sending module 21 is specifically configured to:

Fig. 11 is a schematic structural diagram of another data transmission apparatus according to an embodiment of the present application. In addition to the embodiment shown in fig. 10, referring to fig. 11, the data transmission device 20 further includes a receiving module 23, wherein,

the receiving module 23 is configured to receive second information sent by the terminal device before the sending module 21 detects uplink data sent by the terminal device in time-frequency resources corresponding to the N TBs in the first period, where the second information includes the number X of transport blocks TB sent by the terminal device on the PUR in the first period.

Fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Referring to fig. 12, the terminal device 30 may include: a transceiver 31, a memory 32, a processor 32. The transceiver 31 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a sender, a transmitter, a sending port or a sending interface, and the like, and the receiver may also be referred to as a receiver, a receiving port or a receiving interface, and the like. Illustratively, the transceiver 31, the memory 32, and the processor 33 are connected to each other by a bus 34.

Memory 32 is used to store program instructions;

the processor 33 is configured to execute the program instructions stored in the memory, so as to enable the terminal device 30 to execute any one of the data processing methods described above.

The receiver of the transceiver 31 may be configured to perform a receiving function of the terminal device in the data method. The transmitter of the transceiver 31 is operable to perform the transmitting function of the terminal device in the data method described above.

Fig. 13 is a schematic structural diagram of a network device according to an embodiment of the present application. Referring to fig. 13, the network device 40 may include: transceiver 41, memory 42, processor 43. The transceiver 41 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a sender, a transmitter, a sending port or a sending interface, and the like, and the receiver may also be referred to as a receiver, a receiving port or a receiving interface, and the like. Illustratively, the transceiver 41, the memory 42, and the processor 43 are connected to each other by a bus 44.

The memory 42 is used to store program instructions;

processor 43 is operative to execute program instructions stored in the memory to cause terminal device 40 to perform any of the data processing methods described above.

The receiver of the transceiver 41 may be configured to perform the receiving function of the network device in the data method. The transmitter of the transceiver 41 may be configured to perform the transmitting function of the network device in the data method described above.

The embodiment of the application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is used for implementing the data processing method.

Embodiments of the present application may also provide a computer program product, where the computer program product is executable by a processor, and when the computer program product is executed, the data processing method executed by any of the above-mentioned terminal devices may be implemented.

Embodiments of the present application may also provide a computer program product, which can be executed by a processor, and when the computer program product is executed, the data processing method executed by any one of the network devices shown above can be implemented.

The terminal device, the network device computer-readable storage medium, and the computer program product according to the embodiments of the present application may execute the data processing method, and specific implementation processes and beneficial effects thereof are described above and will not be described herein again.

All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape (magnetic tape), floppy disk (flexible disk), optical disk (optical disk), and any combination thereof.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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

In the present application, the terms "include" and variations thereof may refer to non-limiting inclusions; the term "or" and variations thereof may mean "and/or". The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. In the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Claims

1. A method of data transmission, comprising:

2. The method of claim 1, wherein the first period is an uplink preconfigured resource (PUR) period, and the time-frequency resources corresponding to the N TBs are PURs in the first period.

3. The method according to claim 1 or 2, wherein the state of the terminal device is an idle state or an inactive state.

4. The method according to any one of claims 1-3, wherein the receiving, by the terminal device, the first information sent by the network device comprises:

5. The method of claim 4, wherein the second period is a period before the first period.

6. The method according to any one of claims 1 to 5, wherein the first information is at least one of the following information: downlink control information DCI, radio resource control RRC message.

7. The method according to any of claims 1-6, wherein there are M time-frequency resources corresponding to TB in the first period, M being an integer greater than 1, M being greater than or equal to N, wherein,

8. The method of claim 7, wherein the corresponding time-frequency resources of the N TBs are: and the time frequency resources corresponding to the first N TBs in the time frequency resources corresponding to the M TBs.

9. The method according to any of claims 1-6, wherein there are M time-frequency resources corresponding to TB in the first period, M being an integer greater than 1, M being greater than or equal to N, wherein,

10. The method according to claim 9, wherein the first information comprises M bits, the M bits comprise N first bit values, and positions of the N first bit values in the M bits are used to indicate: and the positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs.

11. The method according to any one of claims 1 to 10, wherein the sending, by the terminal device, uplink data to the network device on the time-frequency resources corresponding to the N TBs in the first period includes:

12. The method of claim 11, wherein before the terminal device sends the uplink data to the network device on the time-frequency resources corresponding to the X TBs, the method further includes:

13. The method of claim 12, wherein the resource used by the terminal device to send the second information is a pre-configured resource.

14. The method according to claim 12 or 13, wherein the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs are predefined.

15. The method of claim 14, wherein the corresponding time-frequency resources for the X TBs are: and the time frequency resource corresponding to the first X TBs in the time frequency resources corresponding to the N TBs.

16. The method of claim 12 or 13, wherein the second information further comprises: and the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs.

17. A method of data transmission, comprising:

18. The method of claim 17, wherein the first period is an uplink preconfigured resource (PUR) period, and the time-frequency resources corresponding to the N TBs are PURs in the first period.

19. The method according to claim 17 or 18, wherein the state of the terminal device is an idle state or an inactive state.

20. The method according to any of claims 17-19, wherein the network device sends the first information to the terminal device, comprising:

21. The method of claim 20, wherein the second period is a period before the first period.

22. The method according to any of claims 17-21, wherein the first information is at least one of: downlink control information DCI, radio resource control RRC message.

23. The method according to any one of claims 17 to 22,

there are time-frequency resources corresponding to M TBs in the first period, where M is an integer greater than 1 and is greater than or equal to N, where,

24. The method of claim 23, wherein the corresponding time-frequency resources of the N TBs are: and the time frequency resources corresponding to the first N TBs in the time frequency resources corresponding to the M TBs.

25. The method of any one of claims 17-24,

26. The method of claim 25, wherein the first information comprises M bits, and wherein the M bits comprise N first bit values, and wherein positions of the N first bit values in the M bits are used to indicate: and the positions of the time-frequency resources corresponding to the N TBs in the time-frequency resources corresponding to the M TBs.

27. The method according to any one of claims 17 to 26, wherein before the network device detects uplink data sent by the terminal device in the time-frequency resources corresponding to the N TBs in the first period, the method further includes:

28. The method of claim 27, wherein the network device receives the second information on a pre-configured resource.

29. The method according to claim 27 or 28, wherein the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs are predefined.

30. The method of claim 29, wherein the corresponding time-frequency resources for the X TBs are: and the time frequency resource corresponding to the first X TBs in the time frequency resources corresponding to the N TBs.

31. The method of claim 27 or 28, wherein the second information further comprises: and the positions of the time-frequency resources corresponding to the X TBs in the time-frequency resources corresponding to the N TBs.

32. A data transmission apparatus, comprising: a receiving module and a transmitting module, wherein,

33. A data transmission apparatus, comprising: a sending module and a processing module, wherein,

34. A terminal device, comprising: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing the computer-executable instructions stored by the memory causes the processor to perform the data transfer method of any of claims 1 to 16.

35. A network device, comprising: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored by the memory causes the processor to perform the data transfer method of any of claims 17 to 31.

36. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, perform the data transmission method of any one of claims 1 to 16.

37. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, implement the data transmission method of any one of claims 17 to 31.