CN109150417B

CN109150417B - Method and device for sending and receiving uplink information

Info

Publication number: CN109150417B
Application number: CN201710459211.5A
Authority: CN
Inventors: 邵家枫; 官磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-06-16
Filing date: 2017-06-16
Publication date: 2020-11-03
Anticipated expiration: 2037-06-16
Also published as: CN109150417A; WO2018228264A1

Abstract

The present application provides a method for sending uplink information, which can be applied to various communication systems, for example: V2X, LTE-V, V2V, Internet of vehicles, MTC, IoT, LTE-M, M2M, Internet of things. The method comprises the following steps: the method comprises the steps that terminal equipment receives first information indicating uplink transmission resources on first resources, wherein the uplink transmission resources are used for the terminal equipment to send a first channel; and sending second information on the second resource, wherein the second information is used for indicating that the terminal equipment has requested the required uplink transmission resource. The second information may indicate, for example, that the terminal device is to send the first channel, or has sent the first channel, or has received the first information, so that the network device may determine in advance whether the terminal device has received the first information, thereby reducing the delay of uplink transmission, or the network device may combine and decode the first channel and the retransmitted first channel according to the second information, thereby improving the decoding success rate of the uplink information.

Description

Method and device for sending and receiving uplink information

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting uplink information and a method and an apparatus for receiving uplink information in the field of wireless communications.

Background

In a wireless communication system, for example, in a Long Term Evolution (LTE) system, a User Equipment (UE) sending uplink information needs to send a Scheduling Request (SR) to a base station, then waits to receive an uplink grant (uplink grant) of the base station, and sends an uplink channel after receiving the uplink grant, the base station detects the uplink channel at a predetermined time, and if the base station does not detect the uplink channel at the predetermined time, the base station continues to schedule the UE to retransmit the uplink channel.

Ultra Reliable Low Latency Communication (URLLC) is a fifth generation (5)^thgeneration, 5G) a communication scenario proposed by the mobile communication system, the URLLC scenario puts severe requirements on the transmission reliability and the time delay of data, for example: the time delay of the uplink and downlink user planes cannot exceed 0.5 millisecond (ms), and the error rate within 1ms cannot exceed 0.0001%. The existing method for sending uplink information is no matter in time delay aspectThe requirements of URLLC scenarios cannot be met in terms of reliability.

Disclosure of Invention

In view of this, the present application provides a method and a device for sending and receiving uplink information, which can reduce the time delay of uplink transmission and improve the reliability of uplink transmission.

In a first aspect, a method for sending uplink information is provided, including: the method comprises the steps that terminal equipment receives first information on first resources, the first information is used for indicating uplink transmission resources, and the uplink transmission resources are used for the terminal equipment to send a first channel; and the terminal equipment sends second information on the second resource, wherein the second information is used for indicating that the terminal equipment has requested the required uplink transmission resource.

According to the method provided by the application, after receiving first information indicating that the terminal device sends the first channel, the terminal device sends second information to the network device, where the second information may indicate that the terminal device sends the first channel, or the second information may indicate that the terminal device has sent the first channel, or the second information may be that the terminal device has requested to the required uplink transmission resource, so that the network device may determine in advance whether the terminal device has received the first information, thereby reducing the time delay of uplink transmission, or the network device may combine and decode the first channel and the retransmitted first channel according to the second information, thereby improving the decoding success rate of the uplink information.

Optionally, before the terminal device sends the second information on the second resource, the method further includes: and the terminal equipment determines the second resource according to a first corresponding relation, wherein the first corresponding relation is the corresponding relation between the second resource and the second information.

When the terminal device sends the second information on the second resource and the terminal device receives the first information, the content included in the second information does not have any corresponding relation with the first information received by the terminal device, and therefore the flexibility of the terminal device for sending the second information is improved.

Optionally, before the terminal device sends the second information on the second resource, the method further includes: the terminal device determines the second resource according to third information, where the third information is used to indicate that one resource in a resource set is the second resource, and the resource set includes at least two resources. Thus, the terminal device can flexibly select the second resource.

Optionally, before the terminal device receives the first information on the first resource, the method further includes: and the terminal equipment sends fourth information on the third resource, wherein the fourth information is used for requesting the scheduling of uplink transmission, and the third resource is different from the second resource.

In this embodiment, the second information may be information that is different from the fourth information and is sent by the terminal device, and as long as the network device receives the information sent by the terminal device on a resource different from the third resource, it may be determined that the terminal device has received the first information, so that flexibility of sending the second information by the terminal device is improved. Correspondingly, as long as the network device receives the information sent by the terminal device on the third resource, it can be determined that the terminal device does not receive the first information, thereby improving and reducing the time delay of uplink transmission.

Optionally, an absolute value of a difference between the starting time of the first resource and the starting time of the second resource is greater than or equal to a first time threshold, where the first time threshold is a value greater than or equal to zero.

The first time threshold may be, for example, the shortest time required for the terminal device to receive the first information, process the first information, and send the second information, the network device starts to count time at the starting time of the first resource, and starts to detect the second information that the terminal device may send on the second resource after the first time threshold elapses, so that the problems of large energy consumption and heavy processor load caused by the network device detecting the second information for a long time can be avoided.

Optionally, an absolute value of a difference between the start time of the first resource and the end time of the second resource is less than or equal to a second time threshold, where the second time threshold is a value greater than or equal to zero.

The second time threshold may be, for example, a maximum value of time for the network device to wait for the terminal device to send the second information, and the network device starts timing at the starting time of the first resource, and if the second information is not detected on the second resource after the second time threshold elapses, it may be determined that the terminal device has not received the first information, so that the problems of large energy consumption and heavy processor load caused by the network device detecting the second information for a long time may be avoided.

Optionally, before the terminal device receives the first information on the first resource, the method further includes: the terminal device generates second information.

The terminal equipment starts to package the second information before receiving the first information, so that whether the terminal equipment receives the first information can be fed back quickly.

In a second aspect, a method for receiving uplink information is provided, including: the network equipment sends first information on a first resource, wherein the first information is used for indicating uplink transmission resources, and the uplink transmission resources are used for sending a first channel by the terminal equipment; the network device detects second information on the second resource, where the second information is used to indicate that the terminal device has requested the required uplink transmission resource.

According to the method for receiving uplink information provided by the application, the network device may determine whether the terminal device receives the first information before receiving the first channel, so that the time delay of uplink transmission may be reduced, or the network device may determine that the terminal device sends the first channel according to the second information after detecting the first channel, and decode the first channel alone or combine and decode the first channel and the retransmitted first channel, so that the reliability of uplink transmission may be improved.

Optionally, before the network device detects the second information on the second resource, the method further includes: the network device determines the second resource according to the first corresponding relationship, wherein the first corresponding relationship is the corresponding relationship between the second resource and the second information.

When the network device receives the second information on the second resource and the terminal device receives the first information, the content included in the second information does not have any corresponding relation with the first information received by the terminal device, so that the flexibility of the terminal device for sending the second information is improved.

Optionally, before the network device detects the second information on the second resource, the method further includes: the network device sends third information, where the third information is used to indicate that one resource in a resource set is a second resource, and the resource set includes at least two resources. Thus, the terminal device can flexibly select the second resource.

Optionally, before the network device sends the first information to the terminal device on the first resource, the method further includes: and the network equipment receives fourth information on a third resource, wherein the fourth information is used for requesting to schedule uplink transmission, and the third resource is different from the second resource.

As long as the network device receives the second information sent by the terminal device on the resource different from the third resource, it can be determined that the terminal device has received the first information, thereby improving the flexibility of the network device in receiving the second information.

Optionally, the method further comprises: and the network equipment sends fifth information on the fourth resource, wherein the fifth information is used for indicating the terminal equipment to send a second channel, and the second channel is the retransmission of the first channel.

The network device may send the fifth information to the terminal device when detecting the first channel but not successfully decoding, instruct the terminal device to retransmit the first channel, and combine and decode the buffered first channel and the retransmitted first channel, so that reliability of uplink transmission may be improved.

Optionally, the method further comprises: and the network equipment combines and decodes the first channel and the second channel, wherein the network equipment detects the second information on the second resource, or the network equipment detects the first channel.

In a third aspect, an apparatus for sending uplink information is provided, where the apparatus may implement the function executed by the terminal device in the method according to the first aspect, where the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible design, the apparatus structurally includes a processor and a transceiver, and the processor is configured to support the apparatus to perform the corresponding functions in the method according to the first aspect. The transceiver is for supporting communication between the apparatus and other network elements. The apparatus may also include a memory, coupled to the processor, that retains program instructions and data necessary for the apparatus.

In a fourth aspect, a device for receiving uplink information is provided, where the device may implement a function executed by a network device in the method according to the second aspect, where the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible design, the apparatus includes a processor and a transceiver in a structure, and the processor is configured to support the apparatus to perform corresponding functions in the method according to the second aspect. The transceiver is for supporting communication between the apparatus and other network elements. The apparatus may also include a memory, coupled to the processor, that retains program instructions and data necessary for the apparatus.

In a fifth aspect, the present application further provides a communication system, where the communication system includes the apparatus for sending uplink information in the third aspect and the apparatus for receiving uplink information in the fourth aspect.

In a sixth aspect, there is provided a computer program product comprising: computer program code for causing a terminal device to perform the method according to the first aspect when the computer program code is run by a communication unit, processing unit or transceiver, processor of the terminal device.

In a seventh aspect, a computer program product is provided, the computer program product comprising: computer program code which, when run by a communication unit, a processing unit or a transceiver, a processor of a terminal device, causes a network device to perform the method according to the second aspect.

In an eighth aspect, there is provided a computer storage medium storing computer software instructions for a terminal device according to the first aspect, comprising a program designed to perform the method of the first aspect.

In a ninth aspect, there is provided a computer storage medium for storing computer software instructions for a network device according to the second aspect, comprising a program designed to perform the method of the second aspect.

A tenth aspect provides a communication chip having instructions stored therein, which when run on a terminal device, cause the communication chip to perform the method of the first aspect described above.

In an eleventh aspect, a communication chip is provided, in which instructions are stored which, when run on a network device, cause the communication chip to perform the method of the second aspect.

Drawings

FIG. 1 is a communication system suitable for use with the present application;

fig. 2 is a schematic diagram illustrating a method of transmitting uplink information suitable for the present application;

fig. 3 is a schematic diagram of a method for transmitting uplink information provided in the present application;

fig. 4 is a schematic diagram of a method for receiving uplink information provided in the present application;

FIG. 5 is a schematic diagram of a possible terminal device provided in the present application;

FIG. 6 is a schematic diagram of another possible terminal device provided herein;

FIG. 7 is a schematic diagram of one possible network device provided herein;

fig. 8 is a schematic diagram of another possible network device provided herein.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 illustrates a communication system 100 to which the present application is applicable. The communication system 100 includes a network device 110 and a terminal device 120, the network device 110 and the terminal device 120 communicate via a wireless network, and when the terminal device 120 transmits data, the wireless communication module may encode information for transmission, and in particular, the wireless communication module may obtain a number of data bits to be transmitted to the network device 110 via a channel, such as data bits generated by a processing module, received from other devices, or stored in a storage module. These data bits may be contained in one or more transport blocks (which may also be referred to as information blocks or data blocks), which may be segmented to produce multiple encoded blocks.

In this application, a terminal device can be referred to as an access terminal, UE, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. An access terminal may be a cellular telephone, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, and a user device in a 5G mobile communication system.

The network device may be a Base Transceiver Station (BTS) in a Code Division Multiple Access (CDMA) system, a base station (node B, NB) in a Wideband Code Division Multiple Access (WCDMA) system, an evolved node B (eNB) in an LTE system, or a base station (gNB) in a 5G mobile communication system, which is merely an example, and the network device may also be a relay station, an access point, a vehicle-mounted device, a wearable device, and other types of devices.

The above-described communication system to which the present application is applied is merely an example, and the communication system to which the present application is applied is not limited thereto, and for example, the number of network devices and terminal devices included in the communication system may also be other numbers. For another example, the communication system 100 to which the present application is applied may also be a device-to-device (D2D) communication system, in which the network device 110 and the terminal device 120 are two devices that communicate in the D2D communication system.

To facilitate understanding of the present application, before describing the method for transmitting uplink information provided by the present application, a brief description is first made of concepts related to the present application.

Fig. 2 is a schematic diagram illustrating a method for transmitting uplink information according to the present application. In fig. 2, 0 to 9 indicate ten subframes included in one radio frame, and the terminal device transmits a first scheduling request (the first scheduling request may be understood as a first format of a scheduling request) to the network device at subframe 1, and receives an uplink grant at subframe 5, where the uplink grant is used to schedule the terminal device to transmit an uplink channel, and then the terminal device transmits the uplink channel at subframe 9. It should be understood that, in the present application, sending an uplink channel refers to sending uplink information through a transmission resource corresponding to the uplink channel, where the transmission resource may be dynamically scheduled by a network device or semi-statically configured by the network device.

As can be seen from fig. 2, the network device can determine that the terminal device receives the uplink grant only after receiving the uplink information in the subframe 9, and if the network device does not receive the uplink information in the subframe 9, the network device cannot determine whether the terminal device receives the uplink grant, for example, when the signal strength of the uplink information received by the network device is smaller than the strength threshold, the network device cannot determine whether the received uplink information is the uplink information sent by the UE scheduled by the network device in the subframe 5.

Therefore, the network device can only continue to schedule the terminal device to retransmit the uplink information in the next radio frame, and think that the terminal device does not transmit the uplink information in the subframe 5, thereby causing a large delay.

In order to reduce the delay in the method shown in fig. 2 and to improve the decoding success rate of the uplink information, the present application provides a method for transmitting the uplink information, a flowchart of the method is shown in fig. 3, and the method 300 includes:

s310, a terminal device receives first information on a first resource, where the first information is used to indicate an uplink transmission resource, and the uplink transmission resource is used for the terminal device to send a first channel.

S320, the terminal device sends second information on the second resource, where the second information is used to indicate that the terminal device has requested the required uplink transmission resource.

It should be understood that the terminal device as the execution subject (or referred to as the "execution device") of the method 300 is merely illustrative.

In S310, the first information may be, for example, an uplink grant, where the uplink grant is used to instruct the terminal device to send the first channel, and the application does not limit the specific name of the first information and other instruction functions of the first information, for example, the first information may also indicate parameters such as a transmission power when the terminal device sends the first channel.

The method for receiving the first information by the terminal device may be, for example, that the terminal device receives a third channel, where the third channel carries the first information, and the method for receiving the first information by the terminal device is not limited in this application.

Optionally, before the terminal device receives the first information on the first resource, the terminal device detects the first information on the first resource. It is to be understood that the terminal device may or may not receive the first information, i.e. in this application, receiving information means detecting information and successfully decoding the information. After the terminal device does not detect the first channel on the first resource, the terminal device must not receive the first information. It will be appreciated that, if the terminal device does not receive the first information, the terminal device need not send explicit information indicating to the network device that the terminal device did not receive the first information, the terminal device further does not need to send explicit information indicating to the network device that the terminal device has not requested the required uplink transmission resources, and the network device may determine whether the terminal device received the first information based on whether the second information was received, which may be understood as, the network device may further determine whether the terminal device has requested the required uplink transmission resource according to whether the second information is received, this avoids the terminal device being unaware of the determined time at which the network device will send the first information, and the terminal device frequently sends the explicit information to indicate that the terminal device does not receive the first information, so that the electric quantity of the terminal device can be saved.

In this application, in some cases, although the terminal device receives the first information, the uplink transmission resource indicated by the first information cannot be completely supported because the uplink to-be-transmitted data volume of the terminal device is large. Or because the uplink transmission resource indicated by the first information is not suitable for being sent by the terminal device, for example, the time delay is too large due to too long transmission time interval allocation, the terminal device cannot correctly transmit due to too small transmission time interval allocation, and the like, when the uplink transmission resource indicated by the first information cannot meet the requirement of the terminal device for transmitting the first channel, the terminal device may notify the network device through the second information, the terminal device does not apply for the required uplink transmission resource, and after the network device receives the second information, the network device may immediately send another information to allocate more uplink transmission resources to the terminal device, thereby reducing the time delay of data transmission.

Further, in the present application, transmitting a channel (e.g., transmitting a first channel) refers to transmitting data and/or control information through the channel. In the present application, the first channel and the second channel are both uplink data channels.

In S320, the second resource may be the same as the first resource or different from the first resource. In this application, unless otherwise specified, two resource differences each mean that resources other than time domain resources of the two resources are different, for example, the second resource is different from the first resource by: at least one of the frequency domain resources, the code domain resources and the spatial domain resources included in the second resources is different from the corresponding resources in the first resources.

When the terminal device sends information on the second resource and the terminal device receives the first information, the content included in the second information and the terminal device receives the first information have a corresponding relation. For example, the second information comprises a dedicated field or bit status value indicating that the terminal device received the first information.

When the terminal equipment sends information on the second resource and the terminal equipment has requested the required uplink transmission resource, the content included in the second information and the terminal equipment has requested the required uplink transmission resource have a corresponding relation. For example, the second information comprises a dedicated field or bit status value indicating that the terminal device received the first information.

When there is a correspondence between the terminal device sending information on the second resource and the terminal device receiving the first information, the second information may include content that does not have any correspondence with the terminal device receiving the first information. When the network device receives the second information on the second resource, it may be determined that the terminal device has received the first information, at this time, the second information may be used to indicate that the terminal device has received the first information, or may be used to indicate other contents besides "receiving the first information", and the second information may also be feedback information or a scheduling request, for example, the second information is also used to request scheduling of the uplink transmission resource, and the specific form of the second information is not limited in the present application.

When there is a corresponding relationship between the information sent by the terminal device on the second resource and the uplink transmission resource requested by the terminal device to be required, the content included in the second information may not have any corresponding relationship with the uplink transmission resource requested by the terminal device to be required. When the network device receives the second information on the second resource, it may be determined that the terminal device has received the first information, at this time, the second information may be used to indicate that the terminal device has requested the required uplink transmission resource, or may be used to indicate other contents besides "requested to the required uplink transmission resource", and the second information may also be feedback information or a scheduling request, for example, the second information is also used to request scheduling of the uplink transmission resource, and the specific form of the second information is not limited in the present application.

The second information may indicate that the terminal device has requested the required uplink transmission resource in a variety of ways. For example, the second information may indicate that the terminal device is to send the first channel (case 1), or the second information may indicate that the terminal device has sent the first channel (case 2), or the second information may be that the required uplink transmission resource has been requested (case 3).

In the case of the above-mentioned case 1,

the sending time of the second information is before the time of sending the first channel, for example, the sending time of the second information may be subframe 7 or subframe 8 shown in fig. 2, and if the network device does not receive the second information before receiving the first channel, the network device may determine that the terminal device does not receive the uplink grant, and the network device may schedule the terminal device to retransmit the first channel in advance, so that the network device may determine whether the terminal device receives the uplink grant in advance, and reduce the delay of uplink transmission.

In addition, after the network device receives the second information, the network device may attempt to receive the first channel on the resource where the terminal device transmits the first channel, that is, the network device may attempt to decode the first channel, without determining whether the terminal device transmits the first channel according to the signal strength of the first channel. If the first channel is decoded incorrectly, the network device may buffer the information of the first channel and retransmit the first information, and perform hybrid automatic repeat request (HARQ) soft information combining and decoding on the buffered information of the first channel and the retransmission information of the first channel after receiving the retransmission information of the first channel, thereby improving the decoding success rate of the uplink information.

In case 1, the sending time of the second information may be predefined, for example, after the network device sends the first information in subframe 5, it may be determined that the second information is detected in subframe 7 and subframe 8, and if the network device does not detect the second information in subframe 7 and subframe 8, the network device may determine that the terminal device does not receive the first information or does not request the required uplink transmission resource. The sending time of the second information may also be indicated in the first information, for example, the network device sends the first information in the subframe 5, and the first information indicates that the sending time of the second information is the subframe 9, that is, it may be determined that the second information is detected in the subframe 9, and if the network device does not detect the second information in the subframe 9, the network device may determine that the terminal device receives the first information, or determine that the terminal device has requested the required uplink transmission resource.

In the case of the above-mentioned case 2,

the transmission time of the second information is after the time of transmitting the first channel. For example, the network device does not need to determine whether the terminal device has sent the first channel according to the signal strength of the first channel, if the network device receives a signal (assumed to be a signal of the first channel) having a signal strength smaller than the strength threshold at subframe 9 shown in fig. 2, the network device may first buffer information of the signal, and when the network device receives the second information described in case 2, the network device may first attempt to decode the buffered information, or may wait to receive a retransmission of the first channel and then perform HARQ soft information combining decoding reception on the buffered information and the retransmitted information of the first channel, thereby improving the decoding success rate of the uplink information.

For another example, if the network device does not receive the second information described in case 1 in subframe 7 shown in fig. 2, the network device may consider that the terminal device does not receive the first information, or consider that the terminal device does not request the required uplink transmission resource, and schedule the terminal device to retransmit the first channel, and when the network device subsequently receives the second information described in case 2, the network device may perform HARQ soft information combining decoding on the information of the first signal and the received retransmission information.

The two embodiments described above both improve the decoding success rate of the uplink information.

In the case of the above-mentioned case 3,

the transmission time of the second information may be before the network device feeds back that it successfully received the first channel. Since the content size of the first channel carrying information is determined by the network device, the first channel may or may not meet the requirement of the terminal device in practice. Therefore, the terminal device can inform the network device whether the required resource applies or not through the second information. Compared with the prior art that the terminal equipment can only report the size of the data to be transmitted by the network equipment when the buffer status report is reported by using the first channel, the embodiment informs the network equipment of the information such as the size of the data to be transmitted of the terminal equipment without the network equipment successfully receiving the first channel, so that the network equipment can rapidly schedule the terminal equipment, the waiting time of data transmission is effectively reduced, and the time delay of uplink transmission can be reduced.

It should be noted that the network device may feed back an Acknowledgement (ACK) when it successfully receives the first channel, or may schedule initial transmission on the HARQ process of the first channel.

In the case of the above cases 1 to 3,

the second information may also be a second scheduling request, where the second scheduling request may be understood as a second format of the scheduling request, and may also be understood as a scheduling request different from a resource occupied by or content carried by the first scheduling request, and the second scheduling request is used to instruct the terminal device to request the network device to schedule uplink transmission.

When the sending time of the second scheduling request is before the time of sending the first channel, the network device may determine whether the terminal device receives the first information according to whether the second scheduling request is received, and further determine whether the required uplink transmission resource is requested, so that the time delay of uplink transmission may be reduced.

When the sending time of the second scheduling request is after the time of sending the first channel, after the network device receives the scheduling request, it may try to decode the buffered information of the first channel first, or wait to receive the retransmission of the first channel and then perform HARQ soft information combining decoding reception on the buffered information of the first channel and the retransmitted information of the first channel, thereby improving the decoding success rate of the uplink information.

The terminal device may select the time for transmitting the second scheduling request according to actual conditions. For example, after the terminal device sends the first scheduling request in subframe 1 shown in fig. 2, if the first information is not detected on the predefined resource, the terminal device may still send the first scheduling request in subframe 7 or subframe 8, and after receiving the first scheduling request, the network device may determine that the terminal device does not receive the first information, or determine that the terminal device does not request the required uplink transmission resource, so that the first information may be quickly retransmitted, and the time delay of uplink transmission is reduced. For another example, the terminal device may send the second scheduling request after sending the first channel, so that the network device may determine that the terminal device receives the second information after receiving the second scheduling request, and if the network device has the problem described in case 2 at this time, the decoding success rate of the uplink information may be improved.

Optionally, before the terminal device sends the second information on the second resource, the method 300 further includes:

s301, the terminal device determines a second resource according to a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between the second resource and the second information.

The second resource may be at least one of a time domain resource, a frequency domain resource, and a code domain resource, and the first corresponding relationship may be predefined by the communication system, or may be configured by the network device through a high-level signaling. The code domain resource may be one sequence or a combination of one or more sequences. For example, the time domain resource of the second resource is 1 slot time length with a period of 2 milliseconds (ms), the frequency domain resource of the second resource is 1 physical resource block, and the code domain resource of the second resource is a specific sequence combination.

Second information is transmitted on the second resource. The network device may determine whether the second information is received based on whether there is a transmission on the second resource. When the network device detects a transmission on this second resource (the detected signal strength or sequence correlation peak is greater than or equal to the threshold), the network device determines to receive the second information. When the network device does not detect a transmission on this second resource (the detected signal strength or sequence correlation peak is less than the threshold), the network device determines that the second information was not received.

s302, the terminal device determines a second resource according to third information, where the third information is used to indicate that one resource in a resource set is the second resource, and the resource set includes at least two resources.

In this embodiment, the third information may be information belonging to the same downlink control indication information as the first information, or may be downlink control indication information belonging to a different downlink control indication information from the first information. The first information may also include third information.

It should be noted that the resource set may be predefined by the communication system, or may be configured by the network device through high-layer signaling. It is understood that the set of resources may contain resources greater than or equal to 2. For example, the resource set includes { resource 1, resource 2, resource 3, resource 4}, the third information is used to indicate that one of the four resources is the second resource, and the resource 1, resource 2, resource 3, and resource 4 are predefined or configured by a high-level signaling, which is not limited in the present invention.

Optionally, before the terminal device receives the first information on the first resource, the method 300 further includes:

s303, the terminal device sends fourth information on a third resource, where the fourth information is used to request scheduling of uplink transmission, and the third resource is different from the second resource.

In this embodiment, the third resource is different from the second resource and includes at least one of the following cases:

the frequency domain resources of the third resources are distinct from the frequency domain resources of the second resources,

the code domain resources of the third resources are distinct from the code domain resources of the second resources,

the spatial domain resources of the third resources are different from the spatial domain resources of the second resources.

In this embodiment, the second information may be information that is different from the fourth information and is sent by the terminal device, and as long as the network device receives the information sent by the terminal device on a resource different from the third resource, it may be determined that the terminal device has received the first information, so that flexibility of sending the second information by the terminal device is improved. Correspondingly, as long as the network device receives the information sent by the terminal device on the third resource, it can be determined that the terminal device does not receive the first information, thereby improving and reducing the time delay of uplink transmission. For example, the fourth information is a first scheduling request, the second information is a second scheduling request, and the resources occupied by the first scheduling request and the second scheduling request are different.

The first time threshold may be predefined by the communication system, may be configured by the network device through high-level signaling, and may be determined by the network device and the terminal device through other information or manual configuration. As an optional example, the first time threshold may be a shortest time required for the terminal device to receive the first information, process the first information, and send the second information, or a shortest time required for the terminal device to receive the first information, process the first information, determine whether to request the required uplink transmission resource, and send the second information, the network device starts timing at a starting time of the first resource, and starts to detect the second information that may be sent by the terminal device on the second resource after the first time threshold elapses, so that problems of large energy consumption and heavy processor load caused by the network device detecting the second information for a long time can be avoided.

It can be understood that the absolute value of the time domain resource index difference between the first resource and the second resource is the sum of the first time threshold and a maximum uplink Transmission Adjustment (TA).

Optionally, an absolute value of a difference between the ending time of the first resource and the starting time of the second resource is greater than or equal to a third time threshold, where the third time threshold is a value greater than or equal to zero.

It can be understood that the absolute value of the time domain resource index difference between the first resource and the second resource is the sum of the third time threshold, the value of the maximum uplink transmission adjustment amount, and the value of one time domain resource. The time domain resource may be a TTI, one or more symbols, one or more slots, or one or more subframes. For example, if the time domain resource index of the second resource is timeslot 10, and the time domain resource index of the first resource is timeslot 0, then the sum of the third time threshold, the value of the maximum uplink transmission adjustment amount, and the value of one time domain resource is 10 timeslots.

The second time threshold may be predefined by the communication system, may be configured by the network device through high-level information, and may be determined by the network device and the terminal device through other information or manual configuration. The value of the second time threshold is greater than or equal to the value of the first time threshold. As an optional example, the second time threshold may be a maximum value of a time for the network device to wait for the terminal device to send the second information, the network device starts timing at a starting time of the first resource, and if the second information is not detected on the second resource after the second time threshold elapses, it may be considered that the terminal device does not receive the first information, or it may be considered that the terminal device does not request the required uplink transmission resource, so that the problems of large energy consumption and heavy processor load caused by the network device detecting the second information for a long time may be avoided.

Optionally, an absolute value of a difference between the termination time of the first resource and the termination time of the second resource is less than or equal to a fourth time threshold, where the fourth time threshold is a value greater than or equal to zero.

s304, the terminal equipment generates the second information.

The terminal device may generate the second information before receiving the first information, for example, the terminal device may start encoding, modulating, and rate matching the second information after sending the scheduling request or the fourth information, and if the terminal device receives the first information or the terminal device has requested the required uplink transmission resource, the terminal device may timely notify the network device that the terminal device has received the first information or the terminal device has requested the required uplink transmission resource by sending the second information; if the terminal device does not receive the first information or does not request the required uplink transmission resource within the preset time, the terminal device can be implicitly informed that the terminal device does not receive the first information or does not request the required uplink transmission resource in time by sending the fourth information or the scheduling request, so that the network device can rapidly retransmit the uplink grant.

The method for transmitting uplink information provided by the present application is described in detail above from the perspective of a terminal device, and the method for receiving uplink information provided by the present application is described below from the perspective of a network device.

Fig. 4 illustrates a method for receiving uplink information provided in the present application, where the method 400 includes:

s410, the network device sends first information on the first resource, where the first information is used to indicate an uplink transmission resource, and the uplink transmission resource is used for the terminal device to send the first channel.

S420, the network device detects second information on the second resource, where the second information is used to indicate that the terminal device has requested the required uplink transmission resource.

It should be understood that the network device is merely illustrative as the execution subject (or referred to as the "execution device") of the method 400, and that the execution subject of the method 400 may also be other types of network devices. The terminal device in S410 is also exemplified.

The network device may send first information to the terminal device after receiving the scheduling request sent by the terminal device, where the first information is used to schedule the terminal device for uplink transmission, and then the network device detects, on the second resource, acknowledgement information that requests the required uplink transmission resource, that is, the second information. The network device detects the acknowledgement of the first information on the second resource, which may be the second information.

Returning to fig. 2, it is assumed that the time domain resource corresponding to the first resource is subframe 5, the time for transmitting the first channel indicated by the first information is subframe 9,

if the network device detects and successfully decodes the second information in the period between the subframe 5 and the subframe 9 (excluding the subframe 5 and the subframe 9), the network device may determine that the terminal device receives the first information or the terminal device has requested the required uplink transmission resource, and the network device may continue to wait for receiving the first channel;

if the network device does not detect the second information in the period between subframe 5 and subframe 9 (excluding subframe 5 and subframe 9), and does not detect the first channel in subframe 9 (assuming that the signal strength of the first channel does not reach the strength threshold), and detects and successfully decodes the second information after subframe 9, the network device may attempt to decode the information on the resource on subframe 9 on which the first channel is transmitted;

if the network device does not detect the second information in the period between the subframe 5 and the subframe 9 (excluding the subframe 5 and the subframe 9), the network device may retransmit the first information to the terminal device, where the retransmitted first information is used to instruct the terminal device to retransmit the first channel, and when the network device does not successfully receive the first channel in the subframe 9 and detects and successfully decodes the second information after the subframe 9, the network device may perform merging decoding on the buffered information of the first channel and the received retransmitted information of the first channel.

Therefore, in the method 400 for receiving uplink information provided by the present application, before receiving the first channel, the network device may determine whether the terminal device has received the first information or whether the terminal device has requested the required uplink transmission resource, and adopt different processing manners as described above according to the reception result of the second information, thereby reducing the time delay of uplink transmission and improving the reliability of uplink transmission.

As is clear to the skilled person: in the method 400, both the network device and the terminal device may be identical to those in the method 300, and the actions of the network device and the terminal device correspond to those in the method 300, and for brevity, no further description is given here.

Optionally, before the network device detects the second information on the second resource, the method 400 further includes:

s401, the network device determines the second resource according to a first corresponding relationship, wherein the first corresponding relationship is a corresponding relationship between the second resource and the second information.

The second resource may be at least one of a time domain resource, a frequency domain resource, and a code domain resource, and the first corresponding relationship may be defined by the communication system, or configured by the network device through a high-level signaling.

s402, the network device sends third information, where the third information is used to indicate that one resource in a resource set is the second resource, and the resource set includes at least two resources.

In this embodiment, the third information may be, for example, information located in the same data packet as the first information, and the resource set may be defined by the communication system, or may be configured by the network device through higher layer signaling.

Optionally, before the network device sends the first information to the terminal device on the first resource, the method 400 further includes:

s403, the network device receives fourth information on a third resource, where the fourth information is used to request scheduling of uplink transmission, and the third resource is different from the second resource.

In this embodiment, the second information may be information that is different from the fourth information and is sent by the terminal device, and as long as the network device receives the information sent by the terminal device on a resource that is different from the third resource, it may be determined that the terminal device has received the first information or that the terminal device has requested the required uplink transmission resource, so that flexibility of the network device in receiving the second information is improved.

Therefore, the problems of high energy consumption and heavy processor load caused by long-time detection of the second information by the network equipment can be avoided.

Optionally, an absolute value of a difference between the starting time of the first resource and the ending time of the second resource is less than or equal to a second time threshold, where the second time threshold is a value greater than or equal to zero.

Optionally, the method 400 further comprises:

s430, the network device sends fifth information on the fourth resource, where the fifth information is used to instruct the terminal device to send a second channel, and the second channel is a retransmission of the first channel.

Taking fig. 2 as an example, if the network device does not receive the second information in the subframe 7, the network device may send the fifth information in the subframe 8 (i.e., the time domain resource included in the fourth resource), so that the terminal device may be scheduled to retransmit the first channel in time, and the time delay of uplink transmission is reduced.

If the network device receives the second information in subframe 7, but fails to decode the first channel in subframe 9, the network device may also send fifth information to the terminal device after subframe 9, so as to perform HARQ soft information combining and decoding on the first channel and the second channel, thereby improving reliability of uplink transmission.

In addition, if the network device does not receive the second information and does not receive the first channel, the network device may also send the fifth information to the terminal device.

Optionally, the method 400 further comprises:

s440, the network device merges and decodes the first channel and the second channel, wherein the network device detects the second information on the second resource, or the network device detects the first channel; or the like, or, alternatively,

the network device separately decodes the second channel, wherein the network device does not detect the second information on the second resource and the network device does not detect the first channel.

Still taking fig. 2 as an example, the subframe 9 is a time domain resource indicated by the first information and used for transmitting the first channel, if the network device receives the second information in the subframe 6, the subframe 7, or the subframe 8, the network device attempts to decode the first channel alone, if the decoding is unsuccessful, the network device sends the fifth information to the terminal device, and after receiving the retransmitted first channel, the cached first channel and the retransmitted first channel are combined and decoded; the network device may also directly send the fifth information to the terminal device without performing separate decoding after receiving the first channel, so as to perform combined decoding with a higher decoding success probability in time. The combining and decoding may be, for example, HARQ soft information combining and decoding, HARQ pre-modulation information combining and decoding, or direct signal superposition combining and decoding. Thus, the present embodiment can improve the reliability of uplink transmission.

In S440, "the network device detects the first channel" means that the network device detects the first channel (the signal strength of the first channel is greater than or equal to the strength threshold) but the network device does not successfully decode the first channel, and the network device may buffer the first channel for merging and decoding. The network device may determine whether the first channel is successfully decoded according to the following method, compare a Cyclic Redundancy Check (CRC) of the decoded first channel with a predefined CRC, and if the two are different, determine that the first channel is not successfully decoded; if the two are the same, the first channel is considered to be decoded. The CRC is a 4-bit sequence or more.

If the network device does not receive the second information and does not detect the first channel, the network device cannot determine whether the terminal sends the first channel under the condition, and therefore the network device needs to decode the second channel independently.

The above details an example of the method for transmitting uplink information and receiving uplink information provided in the present application. It is understood that the terminal device and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The present application may perform the division of the functional units for the terminal device and the like according to the above method examples, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the units in the present application is schematic, and is only one division of logic functions, and there may be another division manner in actual implementation.

In the case of an integrated unit, fig. 5 shows a possible structural diagram of the terminal device involved in the above-described embodiment. The terminal device 500 includes: a processing unit 502 and a communication unit 503. The processing unit 502 is configured to control and manage actions of the terminal device 500, for example, the processing unit 502 is configured to support the terminal device 500 to perform S310 of fig. 3 and/or other processes for the techniques described herein, for example, the processing unit 502 is configured to control the communication unit 503 to perform S310 and S320. The communication unit 503 is used to support communication between the terminal device 500 and other network entities, for example, network devices. The terminal device 500 may further include a storage unit 501 for storing program codes and data of the terminal device 500.

The processing unit 502 may be a processor or a controller, such as a Central Processing Unit (CPU), a general-purpose processor, a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 503 may be a transceiver, a transceiving circuit, or the like. The storage unit 501 may be a memory.

When the processing unit 502 is a processor, the communication unit 503 is a transceiver, and the storage unit 501 is a memory, the terminal device according to the present application may be the terminal device shown in fig. 6.

Referring to fig. 6, the terminal device 600 includes: a processor 602, a transceiver 603, a memory 601. The transceiver 603, the processor 602, and the memory 601 may communicate with each other via internal connection paths, passing control and/or data signals.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and no further description is provided herein.

According to the terminal device 500 and the terminal device 600 provided by the application, after receiving the first information indicating that the terminal device sends the first channel, the second information is sent to the network device, and the second information may indicate that the terminal device sends the first channel, or the second information may indicate that the terminal device has sent the first channel, or the second information may be that the terminal device has requested the required uplink transmission resource, so that the network device may determine in advance whether the terminal device has received the first information or whether the terminal device has requested the required uplink transmission resource, thereby reducing the time delay of uplink transmission, or the network device may combine and decode the first channel and the retransmitted first channel according to the second information, thereby improving the decoding success rate of the uplink information.

Fig. 7 shows a schematic diagram of a possible structure of the network device involved in the above-described embodiment, in the case of an integrated unit. The network device 700 includes: a processing unit 702 and a communication unit 703. The processing unit 702 is configured to control and manage actions of the network device 700, for example, the processing unit 702 is configured to support the network device 700 to perform S310 of fig. 3 and/or other processes for the techniques described herein, for example, the processing unit 702 is configured to control the communication unit 703 to perform S310 and S320. The communication unit 703 is used to support communication between the network device 700 and other network entities, for example, terminal devices. The network device 700 may also include a storage unit 701 for storing program codes and data of the network device 700.

The processing unit 702 may be a processor or a controller, and may be, for example, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 703 may be a transceiver, a transceiver circuit, or the like. The memory unit 701 may be a memory.

When the processing unit 702 is a processor, the communication unit 703 is a transceiver, and the storage unit 701 is a memory, the network device according to the present application may be the network device shown in fig. 8.

Referring to fig. 8, the network device 800 includes: a processor 802, a transceiver 803, a memory 801. The transceiver 803, the processor 802, and the memory 801 may communicate with each other via internal communication paths to communicate control and/or data signals.

In the network device 700 and the network device 800 provided by the present application, before receiving the first channel, the network device may determine whether the terminal device receives the first information or whether the terminal device has requested the required uplink transmission resource, so as to reduce the delay of uplink transmission, or the network device may determine, after detecting the first channel, that the terminal device has sent the first channel according to the second information, and decode the first channel separately or combine and decode the first channel and the retransmitted first channel, so as to improve the reliability of uplink transmission.

It should be understood that the above-described transceiver may include a transmitter and a receiver. The transceiver may further include an antenna, and the number of antennas may be one or more. The memory may be a separate device or may be integrated into the processor. The above-mentioned devices or parts of the devices may be implemented by being integrated into a chip, such as a baseband chip.

The network devices or terminal devices in the apparatus and method embodiments completely correspond to each other, and corresponding steps are performed by corresponding modules, for example, a sending module method or a transmitter performs the steps sent in the method embodiment, a receiving module or a receiver performs the steps received in the method embodiment, and other steps except sending and receiving may be performed by a processing module or a processor. The functions of the specific modules can be referred to corresponding method embodiments, and are not described in detail.

The present application also provides a communication chip, in which instructions are stored, and when the communication chip runs on the terminal device 500 or the terminal device 600, the communication chip is enabled to execute the method corresponding to the terminal device in the above various implementation manners.

The present application further provides a communication chip, which stores instructions that, when executed on the network device 700 or the network device 800, cause the communication chip to perform the method corresponding to the network device in the above various implementations.

In the embodiments of the present application, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic of the processes, and should not limit the implementation processes of the present application.

In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc read only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a terminal device. Of course, the processor and the storage medium may reside as discrete components in the terminal device and the network device.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions described in accordance with the present application are generated, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in or transmitted over a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., Digital Versatile Disk (DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), etc.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present application should be included in the scope of the present application.

Claims

1. A method for transmitting uplink information, the method comprising:

the method comprises the steps that terminal equipment receives first information on first resources, wherein the first information is used for indicating uplink transmission resources, and the uplink transmission resources are used for the terminal equipment to send a first channel;

the terminal device determines a second resource according to a first corresponding relationship or third information, wherein the first corresponding relationship is a corresponding relationship between the second resource and the second information, the third information is used for indicating that one resource in a resource set is the second resource, and the resource set comprises at least two resources;

and the terminal equipment sends the second information on the second resource, wherein the second information is used for indicating that the terminal equipment requests the required uplink transmission resource.

2. The method of claim 1, wherein before the terminal device receives the first information on the first resource, the method further comprises:

and the terminal equipment sends fourth information on a third resource, wherein the fourth information is used for requesting to schedule uplink transmission, and the third resource is different from the second resource.

3. The method according to claim 1 or 2, characterized in that the absolute value of the difference between the starting time of the first resource and the starting time of the second resource is greater than or equal to a first time threshold, which is a value greater than or equal to zero.

4. The method according to claim 1 or 2, characterized in that the absolute value of the difference between the starting time of the first resource and the ending time of the second resource is less than or equal to a second time threshold, the second time threshold being a value greater than or equal to zero.

5. The method according to claim 1 or 2, wherein before the terminal device receives the first information on the first resource, the method further comprises:

the terminal device generates the second information.

6. A method for receiving uplink information, the method comprising:

the method comprises the steps that network equipment sends first information on first resources, wherein the first information is used for indicating uplink transmission resources, and the uplink transmission resources are used for sending a first channel by terminal equipment;

the network equipment determines a second resource according to a first corresponding relationship, wherein the first corresponding relationship is the corresponding relationship between the second resource and second information; or, the network device sends third information, where the third information is used to indicate that one resource in a resource set is a second resource, and the resource set includes at least two resources;

and the network equipment detects the second information on the second resource, wherein the second information is used for indicating that the terminal equipment has requested the required uplink transmission resource.

7. The method of claim 6, wherein before the network device sends the first information to the terminal device on the first resource, the method further comprises:

the network device receives fourth information on a third resource, where the fourth information is used to request scheduling of uplink transmission, and the third resource is different from the second resource.

8. The method according to claim 6 or 7, characterized in that the absolute value of the difference between the starting time of the first resource and the starting time of the second resource is greater than or equal to a first time threshold, which is a value greater than or equal to zero.

9. The method according to claim 6 or 7, characterized in that the absolute value of the difference between the starting time of the first resource and the ending time of the second resource is less than or equal to a second time threshold, the second time threshold being a value greater than or equal to zero.

10. The method according to claim 6 or 7, characterized in that the method further comprises:

and the network equipment sends fifth information on a fourth resource, wherein the fifth information is used for indicating the terminal equipment to send a second channel, and the second channel is the retransmission of the first channel.

11. The method of claim 10, further comprising:

and the network equipment performs merging decoding on the first channel and the second channel, wherein the network equipment detects the second information on the second resource, or the network equipment detects the first channel.

12. A terminal device, comprising a processor and a transceiver,

the processor is configured to control the transceiver to receive first information on a first resource, where the first information is used to indicate an uplink transmission resource, and the uplink transmission resource is used for the terminal device to send a first channel; determining a second resource according to a first corresponding relationship or third information, wherein the first corresponding relationship is a corresponding relationship between the second resource and the second information, the third information is used for indicating that one resource in a resource set is the second resource, and the resource set comprises at least two resources; and controlling the transceiver to send the second information on the second resource, where the second information is used to indicate that the terminal device has requested the required uplink transmission resource.

13. The terminal device of claim 12, wherein the transceiver is further configured to:

and sending fourth information on a third resource, wherein the fourth information is used for requesting scheduling of uplink transmission, and the third resource is different from the second resource.

14. The terminal device according to claim 12 or 13, wherein an absolute value of a difference between the starting time of the first resource and the starting time of the second resource is greater than or equal to a first time threshold, and the first time threshold is a value greater than or equal to zero.

15. The terminal device according to claim 12 or 13, wherein an absolute value of a difference between the start time of the first resource and the end time of the second resource is smaller than or equal to a second time threshold, and the second time threshold is a value greater than or equal to zero.

16. The terminal device of claim 12 or 13, wherein the processor is further configured to: generating the second information before the transceiver receives the first information.

17. A network device comprising a processor and a transceiver,

the processor is configured to:

controlling the transceiver to send first information on a first resource, wherein the first information is used for indicating uplink transmission resources, and the uplink transmission resources are used for a terminal device to send a first channel;

determining a second resource according to a first corresponding relationship, wherein the first corresponding relationship is the corresponding relationship between the second resource and second information; or sending third information, where the third information is used to indicate that one resource in a resource set is a second resource, and the resource set includes at least two resources;

and controlling the transceiver to detect the second information on the second resource, wherein the second information is used for indicating that the terminal equipment has requested the required uplink transmission resource.

18. The network device of claim 17, wherein the transceiver is further configured to:

and receiving fourth information on a third resource, wherein the fourth information is used for requesting scheduling of uplink transmission, and the third resource is different from the second resource.

19. The network device of claim 17 or 18, wherein an absolute value of a difference between the start time of the first resource and the start time of the second resource is greater than or equal to a first time threshold, and wherein the first time threshold is a value greater than or equal to zero.

20. The network device of claim 17 or 18, wherein an absolute value of a difference between the start time of the first resource and the end time of the second resource is less than or equal to a second time threshold, and wherein the second time threshold is a value greater than or equal to zero.

21. The network device of claim 17 or 18, wherein the transceiver is further configured to:

and sending fifth information on a fourth resource, wherein the fifth information is used for indicating the terminal equipment to send a second channel, and the second channel is the retransmission of the first channel.

22. The network device of claim 21, wherein the processor is further configured to:

and merging and decoding the first channel and the second channel, wherein the network device detects the second information on the second resource, or the network device detects the first channel.