WO2018184571A1

WO2018184571A1 - Feedback information transmission and reception methods and related device, and storage medium

Info

Publication number: WO2018184571A1
Application number: PCT/CN2018/081943
Authority: WO
Inventors: 邹伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-04-05
Filing date: 2018-04-04
Publication date: 2018-10-11
Also published as: CN108696340B; CN108696340A

Abstract

Disclosed in an embodiment of the present invention are feedback information transmission and reception methods and a related device. The transmission method comprises: a user equipment (UE) unit in an inactive state receiving downlink data; and the UE in the inactive state using an unlicensed uplink channel to feed back an acknowledgement of reception of the downlink data. Also provided is a related storage medium.

Description

Method for transmitting and receiving feedback information, related device and storage medium

Cross-reference to related applications

The present application is filed on the basis of a Chinese patent application filed on Jan.

Technical field

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

Background technique

The fifth-generation mobile communication technology (5th Generation, referred to as 5G), which is being studied by the 3rd Generation Partnership Project (3GPP), puts high demands on the control plane delay and requires user equipment. (User Equipment, referred to as UE) can enter the connected state within 10ms time range and start to send data. However, in the traditional Long-Term Evolution (LTE) system, the idle state and the connected state need to undergo many processes such as initial random access, connection establishment, and registration authentication, which makes it difficult for the UE to be within 10 ms. Enter the connected state. To overcome this problem, 3GPP introduced a new UE state, inactive state. When the UE enters the state from the connected state, the anchor eNB and the core network that the user initially connects will maintain all the connection configurations of the user and process the uplink, so that the user only needs to pass the random access on the air interface. The simple process of completing the air interface configuration can directly enter the connected state. Meanwhile, in order to save power, the UE does not configure an uplink control channel (PUCCH) and a sounding resource in an inactive state, and adopts a measurement and cell selection strategy similar to an idle state. Therefore, the inactive user may lose uplink synchronization during the macro cell movement process, that is, the Timing Advance (TA) used for uplink transmission may not be used again due to the movement, and must pass random access or a similar process. Re-measure the amount of time advancement.

In practical applications, in the transmission of data, in addition to a large amount of data transmission in a short time, there is also a background service flow. This type of service flow generally has a relatively low frequency of sending data packets, and the data packets are relatively small. For these background services, if the UE in the inactive state can support direct data transmission, that is, a small amount of data transmission can be performed without transferring to the connection state, the signaling overhead and power consumption of the UE can be further saved. Therefore, how to support direct data transmission of inactive users in LTE systems is a problem worth studying. In the current 3GPP discussion, the uplink direct data transmission may use unlicensed transmission, that is, the base station directly allocates a part of the wireless resources for the transmission of the uplink small data, which may be allocated to a certain UE, or It is allocated to multiple UEs for uplink data transmission; the downlink direct data transmission may adopt a mode in which small data is carried in a paging message. Among them, it can be understood that small data is a data packet with a relatively small data length, for example, a data packet whose data length is less than 100 bytes, or a data packet whose data length is less than 120 bytes; of course, the data length of the small data can also be Any reasonable data length other than less than 100, 120 bytes is not limited thereto.

When the base station directly carries the small data in the paging message, since the UE still cannot obtain the uplink synchronization, the downlink data confirmation feedback information cannot be effectively transmitted in the inactive state.

In view of the above technical problems, an effective solution has not been proposed in the related art.

Summary of the invention

The embodiment of the invention provides a method and a device for transmitting and receiving feedback information and a related storage medium, so as to at least solve the problem that the terminal can not effectively transmit the downlink data confirmation feedback information in the inactive state in the related art.

According to an embodiment of the present invention, a method for sending feedback information is provided, including:

The user equipment UE in the inactive inactive state receives the downlink data from the base station; the UE in the inactive state sends the feedback data packet by using the unlicensed uplink channel, where the feedback data includes the downlink data. Receive confirmation feedback.

According to another embodiment of the present invention, a method for receiving feedback information is provided, including: transmitting downlink data to a user equipment UE in an inactive inactive state; and receiving, by the UE in the inactive state, a non-authorization And a feedback data packet sent by the uplink channel, where the feedback data packet is used for confirming feedback on receiving the downlink data.

According to another embodiment of the present invention, a device for transmitting feedback information is provided, including: a first receiving module, configured to: receive downlink data for a user equipment UE in an inactive inactive state;

The feedback module is configured to: send, by the UE in the inactive state, a feedback data packet by using an unlicensed uplink channel, where the feedback data includes an acknowledgement feedback for receiving the downlink data.

According to another embodiment of the present invention, a device for receiving feedback information is provided, including: a sending module, configured to: send downlink data to a user equipment UE in a passive inactive state;

The second receiving module is configured to receive the feedback data packet that is sent by the UE in the inactive state by using the unlicensed uplink channel, where the feedback data packet is used for confirming feedback on the receiving of the downlink data.

According to another embodiment of the present invention, there is further provided a (first) storage medium, the storage medium comprising a stored program, wherein the program is executed to perform the aforementioned method of transmitting feedback information.

According to another embodiment of the present invention, there is also provided a (second) storage medium, the storage medium comprising a stored program, wherein the program is executed to perform the aforementioned method of receiving feedback information.

According to another embodiment of the present invention, there is further provided a (first) processor for running a program, wherein the program is executed to perform the aforementioned method of transmitting feedback information.

According to another embodiment of the present invention, there is also provided a (second) processor for running a program, wherein the program is executed to perform the aforementioned method of receiving feedback information.

In the embodiment of the present invention, the user equipment UE in the inactive inactive state receives the downlink data from the base station; after receiving the downlink data, the acknowledgment feedback of the downlink data reception is performed by using the unlicensed uplink channel to the base station. The data transmission on the unlicensed uplink channel has the feature that the uplink synchronization is not required, and the acknowledgment feedback is performed by using the unlicensed uplink channel, which can solve the problem that the terminal cannot effectively transmit the downlink data acknowledgement feedback information in the inactive state. The effect that the terminal can effectively transmit the downlink data confirmation feedback information in the inactive state is achieved.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a block diagram showing the hardware structure of a mobile terminal for transmitting a feedback information according to an embodiment of the present invention;

2 is a flowchart of a method for transmitting feedback information according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for receiving feedback information according to an embodiment of the present invention; FIG.

4 is a flowchart of an uplink acknowledgement feedback message sent by an inactive state UE in this embodiment;

FIG. 5 is a flowchart of performing downlink data retransmission by a base station to an inactive state UE according to the embodiment;

6 is a schematic diagram of a format of an acknowledgment feedback message using a UE ID in this embodiment;

FIG. 7 is a structural block diagram of a device for transmitting feedback information according to an embodiment of the present invention; FIG.

FIG. 8 is a structural block diagram of a receiving apparatus for feedback information according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

The method embodiment provided in Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or the like. Taking a mobile terminal as an example, FIG. 1 is a hardware structural block diagram of a mobile terminal for transmitting a feedback information according to an embodiment of the present invention. As shown in FIG. 1, mobile terminal 10 may include one or more (only one shown in FIG. 1) processor 102 (processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. A memory 104 for storing data, and a transmission device 106 for communication functions. It will be understood by those skilled in the art that the structure shown in FIG. 1 is merely illustrative and does not limit the structure of the above electronic device. For example, the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.

The memory 104 can be used to store software programs and modules of application software, such as program instructions/modules corresponding to the method for transmitting feedback information in the embodiment of the present invention, and the processor 102 executes by executing software programs and modules stored in the memory 104. Various functional applications and data processing, that is, the above methods are implemented. Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 104 may further include memory remotely located relative to processor 102, which may be connected to mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Transmission device 106 is for receiving or transmitting data via a network. The above-described network specific example may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module for communicating with the Internet wirelessly.

In the embodiment, a method for sending feedback information is provided. FIG. 2 is a flowchart of a method for sending feedback information according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202: The user equipment UE in the inactive inactive state receives downlink data.

Here, the downlink data may be derived from a base station, an evolved base station (eNB), a small base cell, and/or a micro/small base station. That is, the downlink data received by the UE may be downlink data sent by any one or more types of base stations. Among them, the small base station and the micro/small base station are base stations in the 5G. Unless otherwise specified, the base station subsequently referred to in this application may be any one or more of the above types.

Step S204: The UE in the inactive state sends a feedback data packet by using an unlicensed uplink channel, where the feedback data includes an acknowledgement feedback for receiving the downlink data.

That is, in this step, the UE in the inactive state performs the acknowledgement of the downlink data reception by using the unlicensed uplink channel.

Through the above steps, the user equipment UE in the inactive inactive state receives the downlink data from the base station; after receiving the downlink data, the acknowledgment feedback of the downlink data reception is performed to the base station by using the unlicensed uplink channel. The data transmission on the unlicensed uplink channel has the feature that the uplink synchronization is not required, and the acknowledgment feedback is performed by using the unlicensed uplink channel, which can solve the problem that the terminal cannot effectively transmit the downlink data acknowledgement feedback information in the inactive state. The effect that the terminal can effectively transmit the downlink data confirmation feedback information in the inactive state is achieved.

Optionally, the execution subject UE of the foregoing step may be specifically a terminal, but is not limited thereto.

In an optional embodiment, the acknowledgment feedback of the UE in the inactive state by using the unlicensed uplink channel for the downlink data reception may include: determining, by the UE in the inactive state, the configuration information according to the unlicensed uplink channel. An unlicensed uplink channel, wherein the foregoing configuration information is determined by at least one of: a manner in which the base station notifies in the broadcast channel; a manner in which the base station notifies in the dedicated signaling channel; a manner pre-agreed by a standard protocol; in the inactive state The UE below performs the acknowledgement feedback of the downlink data by using the determined unlicensed uplink channel.

In an optional embodiment, the foregoing configuration information may include at least one of: location information of a time domain and a frequency domain of the unlicensed uplink channel; information of a modulation and coding mode sent by the unlicensed uplink channel; Whether the uplink information is attached to the uplink channel.

In an optional embodiment, the acknowledgment feedback of the UE in the inactive state by using the unlicensed uplink channel to perform the downlink data reception may include: sending, by the UE in the inactive state, on the unlicensed uplink channel. And acknowledging the feedback data packet that receives the downlink data, where the feedback data packet includes at least one of: a preamble sequence; type information of the feedback data packet; bit information used to identify the identifier information of the UE; and the feedback data packet. Serial number; a subsequent processing indication for indicating processing after receiving the above-mentioned feedback data packet; a cyclic redundancy check (CRC) code. In this embodiment, the preamble sequence is used for timing and/or terminal adapter TA estimation; the type information of the feedback data packet indicates feedback packet transmission acknowledgement feedback information; and bit information for identifying the identifier information of the UE, where The bit information includes all bit information and part of bit information, and is used to identify a user who sends an acknowledgment data packet; the sequence number of the feedback data packet is used to indicate the received downlink data packet; and is used to indicate after receiving the downlink data. A subsequent processing indication of the process is used to indicate whether a transition to the connected state is required for subsequent communication.

In an optional embodiment, the sequence number of the feedback data packet may be determined by one of the following information: a serial number of a Radio Link Control (RLC) layer; a hybrid automatic repeat reQuest (Hybrid Automatic Repeat reQuest) , HARQ) Process ID (ID).

In an optional embodiment, the identifier information of the UE may be determined by the base station notifying the UE before the UE enters the inactive state.

In an optional embodiment, the receiving, by the UE in the inactive state, the downlink data may include: receiving, by the UE in the inactive state, a transmission time interval of the paging opportunity of the base station in the UE (Transmission Time Interval) a paging message sent on the TTI, wherein the paging message carries the downlink data; and the downlink data carried in the paging message is obtained.

In this embodiment, a method for receiving feedback information is provided. FIG. 3 is a flowchart of a method for receiving feedback information according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:

Step S302: Send downlink data to the user equipment UE in the inactive inactive state;

Step S304, receiving a feedback data packet sent by the UE in the inactive state by using an unlicensed uplink channel, where the feedback data packet is used for confirming feedback of receiving downlink data.

After receiving the downlink data to the user equipment UE in the inactive inactive state, the base station receives the feedback data packet sent by the UE in the inactive state by using the unlicensed uplink channel, where the feedback data packet is used. Confirm feedback on the reception of downlink data. Therefore, the problem that the terminal cannot effectively transmit the downlink data acknowledgement feedback information in the inactive state can be solved, and the effect that the terminal can effectively transmit the downlink data acknowledgement feedback information in the inactive state can be achieved.

Optionally, the execution body of the foregoing steps may be a base station, but is not limited thereto.

In an optional embodiment, the sending the downlink data to the UE in the inactive state may include: when determining that the downlink data can be sent in a paging message, according to an attribute of the downlink data, in the UE The paging message is sent on the TTI where the paging opportunity is located, where the paging message carries the downlink data.

In an optional embodiment, after the paging message is sent on the TTI where the paging opportunity of the UE is located, according to the attribute of the downlink data, the method may further include: starting a timer and timing; if the timer is When the feedback data packet sent by the UE in the inactive state by using the unlicensed uplink channel is not received before the timeout expires, the paging message is resent to the UE.

In an optional embodiment, the feedback data packet may include at least one of the following: a preamble sequence; type information of the feedback data packet; bit information used to identify the identifier information of the UE; and a sequence number of the feedback data packet. a subsequent processing indication for indicating processing after receiving the above-described feedback data packet; a CRC code.

In an optional embodiment, the sequence number of the feedback data packet may be determined by one of the following information: a sequence number of the RLC layer; a HARQ process identifier ID.

In an optional embodiment, the identifier information of the UE may be determined by: notifying the UE before the UE enters the inactive state.

In an optional embodiment, the attribute of the downlink data may include at least one of the following: an attribute of the size of the downlink data, and an attribute of the service to which the downlink data belongs, where the attribute of the service to which the downlink data belongs includes at least the following One: the delay attribute of the above service, the reliability attribute of the above service.

Through the above method, the UE in the inactive state can directly send the acknowledgement feedback using the unlicensed channel and remain in the inactive state. In this way, the UE in the inactive state does not need to frequently switch between the connected state and the inactive state, which saves signaling overhead. Correspondingly, the power consumption of the inactive UE is also reduced.

The present invention will be described in detail below with reference to specific embodiments:

Specific embodiment 1:

4 is a flow chart of the inactive state UE sending an uplink acknowledgement feedback message in the embodiment, as shown in FIG. 4, the specific implementation steps are as follows:

Step 1: After detecting the arrival of the downlink data, the base station determines to directly send the data packet in the paging message according to the attribute of the downlink data packet.

Optionally, the attribute of the foregoing data packet may be a size of the data packet itself, or may be an attribute of a service to which the data packet belongs. Optionally, the attributes of the service to which the foregoing data packet belongs may include a delay attribute of the service, a reliability attribute, and the like.

Wherein, when the attribute of the data packet is the size of the data packet itself, the data packet is directly sent in the paging message if the length of the data packet is small, for example, the data packet whose length is less than 100 bytes can be directly in the paging message. Send; or, a packet less than 150 bytes in length can be sent directly in the paging message. It can be understood that the length of the data packet that can be directly sent in the paging message can take any other reasonable value in addition to less than 100 or 150 bytes, as the case may be.

When the data includes the time delay of the attribute of the service to be a service, if the delay requirement is relatively small, the data packet may be directly transmitted in the paging message; for example, the delay is less than 0.25 s or the delay is less than 0.1 s. The data packet can be transmitted directly in the paging message. It can be understood that the delay of the data packet that can be directly sent in the paging message can take any other reasonable value in addition to less than 0.15 s or 0.1 s, depending on the specific situation.

When the data includes the attribute of the service to be the reliability of the service, the data packet may be directly transmitted in the paging message if the paging message needs to be acknowledged (feedback). The main considerations are: some paging messages need to be acknowledged (feedback), and some do not need to be (feedback) acknowledged. For example, paging messages in LTE do not need to be confirmed. In this case, they cannot be directly The transmission of the data packet is performed in the paging message.

Step 2: The base station sends a paging message in the TTI where the paging opportunity of the UE is located, and the paging message carries the downlink data packet.

Step 3: The acknowledgment feedback message of the data packet received by the UE in the subsequent unlicensed channel transmission paging. The UE remains in the inactive state throughout the process. The determining the feedback message may be regarded as a specific form of the feedback data packet.

Specific embodiment 2

FIG. 5 is a flowchart of performing downlink data retransmission by the base station to the inactive state UE according to the embodiment, as shown in FIG. 5, the specific implementation steps are as follows:

Step 1: The base station sends a paging message in the TTI where the paging opportunity of the UE is located, and the paging message carries the downlink data packet.

Step 2: The base station detects whether an acknowledgement feedback message of the sent downlink data packet is received within a certain time. Optionally, the base station may start a timer after sending the paging message carrying the downlink data packet. If the timer expires, the acknowledgment feedback message of the sent downlink data packet is not received within a certain period of time.

Step 3: The base station sends a paging message carrying the downlink data packet in the TTI where the paging opportunity of the subsequent UE is located, and returns to step 2.

Specific Example 3:

6 is a schematic diagram of a format of an acknowledgment feedback message using a UE ID in this embodiment. As shown in FIG. 6, the acknowledgment feedback message may include one or more of the following information: a preamble sequence, a packet type information, and a UE identity identifier. All bits or parts of bits, the specific serial number of the confirmed data packet, subsequent processing indication, CRC check code. The preamble sequence may be used for timing and/or TA estimation; the data packet type indicates that the data packet is used to deliver acknowledgement feedback information; the UE identity identifier is used to identify the user who sent the acknowledgement feedback; the serial number of the specific acknowledged data packet A downlink packet indicating successful reception; a subsequent processing indication is used to indicate whether a transition to a connected state is required for subsequent communication. Optionally, the foregoing UE identity identifier may be notified by the base station to the UE by the base station when the user enters an inactive state.

With the above embodiment, the UE in the inactive state directly transmits the acknowledgment feedback message using the unlicensed channel and remains in the inactive state. In this way, the UE in the inactive state does not need to frequently switch between the connected state and the inactive state, which saves signaling overhead. Correspondingly, the power consumption of the inactive UE is also reduced.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In the embodiment, a device for transmitting feedback information is provided, which is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 7 is a structural block diagram of a device for transmitting feedback information according to an embodiment of the present invention. As shown in FIG. 7, the device includes: a first receiving module 702 and a feedback module 704, which are described in detail below:

The first receiving module 702 is configured to: receive the downlink data for the user equipment UE in the inactive inactive state; the feedback module 704 is connected to the first receiving module, and is configured to: use the non-using UE in the inactive state. Authorizing the uplink channel to send a feedback data packet, the feedback data comprising acknowledgment feedback for receiving the downlink data.

That is, the feedback module 704 is the acknowledgement feedback that the UE in the inactive state performs the downlink data reception by using the unlicensed uplink channel.

In an optional embodiment, the feedback module 704 may be configured to: determine the sub-module, configured to: determine, according to the configuration information corresponding to the unlicensed uplink channel, the unlicensed uplink channel in the inactive state, The foregoing configuration information is determined by at least one of the following manners: a manner in which the base station notifies in the broadcast channel, a manner in which the base station notifies in the dedicated signaling channel, a manner pre-agreed by a standard protocol, and a feedback submodule configured to be in the foregoing manner. The UE in the inactive state performs the acknowledgement feedback of the downlink data by using the determined unlicensed uplink channel.

In an optional embodiment, the feedback submodule of the feedback module 704 is configured to send, by the UE in the inactive state, a feedback data packet for confirming receiving downlink data on the unlicensed uplink channel, where the feedback data packet is And including at least one of: a preamble sequence; type information of the feedback data packet; bit information used to identify the identification information of the UE; a sequence number of the feedback data packet; and a process for indicating that the feedback data packet is received after receiving the feedback data packet Subsequent processing indication; cyclic redundancy check CRC code.

In an optional embodiment, the first receiving module 702 is further configured to: receive, by the UE in the inactive state, a paging message sent by the base station on a TTI where the paging opportunity of the UE is located, where the paging message is sent. The downlink data is carried in the foregoing downlink data; and the downlink data carried in the paging message is obtained.

FIG. 8 is a structural block diagram of a receiving apparatus for feedback information according to an embodiment of the present invention. As shown in FIG. 8, the apparatus includes: a transmitting module 802 and a second receiving module 804, which are described in detail below:

The sending module 802 is configured to send downlink data to the user equipment UE in the inactive inactive state; the second receiving module 804 is connected to the sending module 802, and configured to receive the UE in the inactive state to use the unlicensed uplink channel. The feedback data packet is sent, wherein the feedback data packet is used for confirming feedback on the reception of the downlink data.

In an optional embodiment, the sending module 802 is further configured to: when determining that the downlink data can be sent in the paging message, send the foregoing on the TTI where the paging opportunity of the UE is located according to the attribute of the downlink data. a paging message, wherein the paging message carries the downlink data.

In an optional embodiment, after the sending module 802 sends the paging message on the TTI where the paging opportunity of the UE is located, according to the attribute of the downlink data, the apparatus may further include: a startup module, configured to start timing. And re-sending the module, when the feedback data packet sent by the UE in the inactive state is not received by the UE in the inactive state, and the foregoing feedback packet is sent to the UE, Paging message.

In an optional embodiment, the storage medium includes a stored program, wherein the method of transmitting the feedback information described above is executed when the program is executed, or the method of any one of the methods for receiving feedback information is performed.

In an optional embodiment, the processor is configured to execute a program, wherein the processor executes a method of transmitting the feedback information when the program is run, or a method of receiving the feedback information.

It should be noted that each module (including submodules) in FIG. 7 and/or FIG. 8 can be implemented by software or hardware. For the latter, the following manners can be implemented, but are not limited thereto: For example, each module in FIG. 7 (including sub-modules) is located in the same processor, or is located in different processors in any combination.

Embodiments of the present invention also provide a first storage medium and a second storage medium. The method of transmitting the feedback information is executed when the (first) program stored in the first type of storage medium is executed, and the receiving of the feedback information is performed when the (second) program stored in the second storage medium is executed method. Optionally, in the embodiment, the above storage medium may be configured to store program code for performing the above steps.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in this embodiment, a first processor and a second processor are further provided, wherein the first processor executes a sending method of the feedback information when the (first) program is run. The second processor executes the receiving method of the feedback information when the (second) program is run.

The above steps are performed in accordance with the program code stored in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and the embodiments are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

In this embodiment, the user equipment UE in the inactive inactive state receives downlink data from the base station; after receiving the downlink data, the acknowledgment feedback of downlink data reception is performed to the base station by using the unlicensed uplink channel. The data transmission on the unlicensed uplink channel has the feature that the uplink synchronization is not required, and the acknowledgment feedback is performed by using the unlicensed uplink channel, which can solve the problem that the terminal cannot effectively transmit the downlink data acknowledgement feedback information in the inactive state. The effect that the terminal can effectively transmit the downlink data confirmation feedback information in the inactive state is achieved.

Claims

A method for transmitting feedback information includes:

The user equipment UE in the inactive inactive state receives downlink data.

The UE in the inactive state sends a feedback data packet by using an unlicensed uplink channel, and the feedback data includes an acknowledgement feedback for receiving the downlink data.
The method according to claim 1, wherein the UE in the inactive state sends a feedback data packet by using the unlicensed uplink channel, including:

The UE in the inactive state determines the unlicensed uplink channel according to configuration information corresponding to the unlicensed uplink channel;

The configuration information is determined by at least one of: receiving configuration information notified by the base station in the broadcast channel; receiving configuration information notified by the base station in the dedicated signaling channel; and pre-agreed by a standard protocol;

The UE in the inactive state performs the acknowledgement feedback of the downlink data by using the determined unlicensed uplink channel.
The method of claim 2, wherein the configuration information comprises at least one of the following:

Location information of the time domain and the frequency domain of the unlicensed uplink channel;

Information of a modulation and coding mode transmitted by the unlicensed uplink channel;

Whether the unlicensed uplink channel adds preamble information.
The method of claim 1, wherein the UE in the inactive state receives downlink data, including:

The UE in the inactive state receives the paging message sent by the base station on the transmission time interval TTI where the paging opportunity of the UE is located, where the paging message carries the downlink data;

Obtaining the downlink data carried in the paging message.
A method for receiving feedback information, including:

Sending downlink data to the user equipment UE in the inactive inactive state;

And receiving, by the UE in the inactive state, a feedback data packet that is sent by using the unlicensed uplink channel, where the feedback data packet is used for confirming feedback on receiving the downlink data.
The method of claim 5, wherein the transmitting the downlink data to the UE in the inactive state comprises:

When it is determined that the downlink data can be sent in a paging message, the paging message is sent according to an attribute of the downlink data on a transmission time interval TTI where the paging opportunity of the UE is located, where the paging The downlink data is carried in the message.
The method of claim 6, wherein after the paging message is sent on the TTI where the paging opportunity of the UE is located, according to the attribute of the downlink data, the method further includes:

Start the timer and time it through the timer;

And when the feedback data packet sent by the UE in the inactive state by using the unlicensed uplink channel is not received before the timer expires, the paging message is resent to the UE.
The method of claim 6, wherein the attributes of the downlink data comprise at least one of the following:

The attribute of the size of the downlink data;

An attribute of the service to which the downlink data belongs, where the attribute of the service to which the downlink data belongs includes at least one of the following: a delay attribute of the service, and a reliability attribute of the service.
A sending device for feedback information, comprising:

The first receiving module is configured to: receive downlink data for the user equipment UE in the inactive inactive state;

The feedback module is configured to: send, by the UE in the inactive state, a feedback data packet by using an unlicensed uplink channel, where the feedback data includes an acknowledgement feedback for receiving the downlink data.
The apparatus of claim 9, wherein the feedback module comprises:

Determining a sub-module, configured to determine, according to the configuration information corresponding to the unlicensed uplink channel, the unlicensed uplink channel in the inactive state, where the configuration information is at least one of the following manners Determining: a manner in which the base station notifies in the broadcast channel; a manner in which the base station notifies in the dedicated signaling channel; a manner pre-agreed by a standard protocol;

The feedback sub-module is configured to perform acknowledgment feedback of the downlink data by using the determined unlicensed uplink channel by the UE in the inactive state.
A receiving device for feedback information, comprising:

The sending module is configured to: send downlink data to the user equipment UE in the inactive inactive state;

The second receiving module is configured to receive the feedback data packet that is sent by the UE in the inactive state by using the unlicensed uplink channel, where the feedback data packet is used for confirming feedback on the receiving of the downlink data.
The apparatus of claim 11, wherein the sending module is further configured to:

When it is determined that the downlink data can be sent in a paging message, the paging message is sent according to an attribute of the downlink data on a transmission time interval TTI where the paging opportunity of the UE is located, where the paging The downlink data is carried in the message.
A storage medium, the storage medium comprising a stored program, wherein the program is executed to execute the method of transmitting the feedback information according to any one of claims 1 to 4.
A storage medium, the storage medium comprising a stored program, wherein the program is executed to perform the method of receiving feedback information according to any one of claims 5 to 8.
A processor for executing a program, wherein the program is executed to execute the method of transmitting feedback information according to any one of claims 1 to 4.
A processor for executing a program, wherein the program is executed to perform the method of receiving feedback information according to any one of claims 5 to 8.