CN113972964A

CN113972964A - Transmission method of feedback information, terminal and network side equipment

Info

Publication number: CN113972964A
Application number: CN202010713967.XA
Authority: CN
Inventors: 吴昱民
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2022-01-25

Abstract

The embodiment of the application discloses a transmission method of feedback information, a terminal and network side equipment, which can solve the problem that the terminal cannot send the feedback information in time. The method can be applied to a terminal and comprises the following steps: receiving service data of a specific service; sending feedback information of the service data through a random access channel; or initiating a random access process, and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

Description

Transmission method of feedback information, terminal and network side equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a transmission method of feedback information, a terminal and network side equipment.

Background

Multicast services such as Multimedia Broadcast Multicast Service (MBMS) and Broadcast Multicast Service (MBS) are techniques for transmitting data from a data source to a plurality of targets, and the use of the techniques can improve the utilization rate of network resources (especially air interface resources). With the application and popularization of multimedia sharing services, multicast service transmission is particularly important for New Radio (NR) systems.

In the related art, some multicast services have higher reliability requirements, and therefore, a terminal is required to be capable of providing feedback information (e.g., HARQ feedback information) in time. However, in the actual application process, the terminal may not be able to send the feedback information in time due to the reason that the terminal is in a non-connected state or an uplink out-of-step state.

Disclosure of Invention

The embodiment of the application aims to provide a transmission method of feedback information, a terminal and network side equipment, and can solve the problem that the terminal cannot send the feedback information in time.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, a method for sending feedback information is provided, where the method is applied to a terminal, and the method includes: receiving service data of a specific service; sending feedback information of the service data through a random access channel; or initiating a random access process, and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

In a second aspect, a method for receiving feedback information is provided, where the method is applied to a network side device, and the method includes: transmitting service data of a specific service; receiving feedback information of the service data through a random access channel; or receiving feedback information of the service data through uplink resources, wherein the feedback information received through the uplink resources is sent by a terminal when the terminal initiates a random access process and acquires uplink synchronization.

In a third aspect, an apparatus for sending feedback information is provided, including: the receiving module is used for receiving the service data of the specific service; a sending module, configured to send feedback information of the service data through a random access channel; or initiating a random access process, and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

In a fourth aspect, an apparatus for receiving feedback information is provided, including: the sending module is used for sending the service data of the specific service; a receiving module, configured to receive feedback information of the service data through a random access channel; or receiving feedback information of the service data through uplink resources, wherein the feedback information received through the uplink resources is sent by a terminal when the terminal initiates a random access process and acquires uplink synchronization.

In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the method according to the first aspect.

In a sixth aspect, a network-side device is provided, which comprises a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the method according to the second aspect.

In a seventh aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, implements the method of the first aspect or implements the method of the second aspect.

In an eighth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the second aspect.

In the embodiment of the application, the terminal can send the feedback information of the service data through the random access channel, and can also initiate the random access process to send the feedback information of the service data under the condition of obtaining uplink synchronization, so that the feedback information of the service data can be sent in time, the sending reliability of the feedback information is improved, and the communication efficiency is improved.

Drawings

Fig. 1 is a block diagram of a wireless communication system according to one embodiment of the present application;

fig. 2 is a schematic flow chart diagram of a method of transmitting feedback information according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a method of receiving feedback information according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a feedback information transmitting apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a feedback information receiving apparatus according to an embodiment of the present application;

FIG. 6 is a schematic block diagram of a communication device according to one embodiment of the present application;

FIG. 7 is a block diagram of a terminal according to one embodiment of the present application;

fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single carrier Multiple Access (single carrier Multiple Access), and so onSingle-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation)^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, wherein the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a next generation node B (gnb), a home node B, a home evolved node B (hbo), a WLAN access Point, a WiFi node, a Transmission Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

The following describes in detail a transmission method and a device for feedback information provided by the embodiments of the present application through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, an embodiment of the present application provides a method 200 for transmitting feedback information, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, and includes the following steps.

S202: service data of a specific service is received.

Alternatively, the specific Service may be a Multicast Service, and the Multicast Service includes, for example, Multimedia Broadcast Multicast Service (MBMS) or Broadcast Multicast Service (MBS). In other examples, the particular traffic may also be unicast traffic.

In this embodiment, the indication information of the specific service includes at least one of: service information; and carrying the identification.

Optionally, the service information includes at least one of the following 1) to 8):

1) service Identity, e.g. Temporary Mobile Group Identity (TMGI).

2) Service name, e.g., central television station.

3) Service explanations such as multicast service distribution channels (specifically, central tv station programs sent via the broadcast television network).

4) The sending address of the traffic, e.g., the TCP and/or IP address, and the sending port number to which the address corresponds.

5) The service transmission Protocol is, for example, Hypertext Transfer Protocol (HTTP) or Simple Message Transfer Protocol (SMTP).

6) And the session identifier is, for example, an MBS session-1, namely the MBS session-1.

7) The traffic type indicates, for example, multicast traffic or unicast traffic.

8) The scheduling Identifier, such as a Broadcast Multicast Service Radio Network Temporary Identifier-1 (MBS-RNTI) -1.

Optionally, the bearer identity includes at least one of the following 1) to 4):

1) the data flow identifies, e.g., QoS flow-1.

2) And a Session identifier, such as PDU Session-1.

3) Radio bearer identification, data radio bearer DRB-1.

4) A logical channel identification, e.g., logical channel identification LCID-1.

S204: sending feedback information of the service data through a random access channel; or initiating a random access process and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

The feedback information mentioned in this embodiment may be used to indicate at least one of: the service data (specifically, the data block) is successfully received; the service data is not successfully received.

According to the method for sending the feedback information, the terminal can send the feedback information of the service data through the random access channel, and can also initiate the random access process to send the feedback information of the service data under the condition of obtaining uplink synchronization, so that the feedback information of the service data can be sent in time, the reliability of sending the feedback information is improved, and the communication efficiency is improved.

The method for sending the feedback information provided by the embodiment of the application can enable the terminal to still send the feedback information to the specific service (such as MBS) when the uplink is out of step, thereby improving the reliability of sending the feedback information.

Optionally, in an embodiment, the terminal sends the feedback information of the service data through a random access channel, and the state of the terminal is one of the following:

1) an idle state;

2) an inactive state;

3) and (5) ascending the out-of-step state.

It can be understood that the terminal may still receive the service data of the specific service when the terminal is in an idle state, an inactive state, or an uplink out-of-step state. However, in the prior art, the terminal cannot send the feedback information in an idle state, an inactive state, or an uplink out-of-step state, and in the embodiment of the present application, the feedback information of the service data is sent through the random access channel, so that the feedback information can be sent in time, and the communication efficiency is improved.

In practical application, the network side device may also configure an association relationship between the service data and the random access channel resource for the terminal in advance, so that the terminal may send the feedback information of the service data on the random access channel resource associated with the service data. For the network side device, based on the association relationship and the received feedback information, the network side device may determine that the service data terminals are successfully received and the service data terminals are failed to receive, and further may retransmit the service data that the terminal failed to receive, thereby improving the communication effectiveness.

Optionally, in an embodiment, before the terminal initiates the random access procedure, the method further includes: receiving first configuration information, where the first configuration information is used to configure an uplink resource for the terminal, and the uplink resource is used to send the feedback information; wherein the transmitting the feedback information of the service data when acquiring uplink synchronization includes: and sending feedback information of the service data through the uplink resource when uplink synchronization is acquired.

Optionally, in an embodiment, before the initiating the random access procedure, the method further includes: and receiving second configuration information, wherein the second configuration information is used for configuring the terminal to initiate a random access process under the condition of uplink desynchronization so as to send the feedback information under the condition of uplink synchronization.

Of course, in other examples, the second configuration information may also be used to configure the terminal not to initiate a random access process when the uplink is out of synchronization, and send the feedback information of the service data through a random access channel.

Optionally, in an embodiment, the initiating a random access procedure, and sending feedback information of the service data when acquiring uplink synchronization includes: initiating a contention-based random access procedure; and under the condition that the contention-based random access process is successfully completed, sending feedback information of the service data by using an uplink timing value obtained in the contention-based random access process.

It can be understood that, in the four-step random access process, msg2 sent by the network device carries a Timing Advance (TA), and the terminal may send the feedback information of the service data by using the TA without waiting for the random access to be completely successful.

Considering that, in the contention-based random access process, the TA carried in msg2 is not necessarily the TA corresponding to the terminal, that is, the TA may also be the TA of another terminal, so that, in this embodiment, when the random access is successful, the feedback information of the service data is sent based on the uplink timing value obtained in the contention-based random access process, so as to ensure that the sent feedback information can be correctly received by the network side device as much as possible, and improve the communication effectiveness.

Optionally, in an embodiment, a terminal initiates a random access process, and sends feedback information of service data when uplink synchronization is obtained, where the terminal is in an uplink out-of-step state when receiving the service data of the specific service; or the terminal is in an uplink out-of-step state before receiving the service data of the specific service, or the terminal is in an uplink out-of-step state after receiving the service data of the specific service but before sending the feedback information.

In other examples, when the terminal is in the uplink synchronization state, the terminal directly uses the preconfigured uplink resource to send the feedback information of the service data without initiating a random access procedure.

Optionally, as an embodiment, the initiating a random access procedure includes one of:

1) sending a random access signal through a cell receiving the service data;

2) sending a random access signal through a cell to which a feedback channel belongs, wherein the feedback channel is used for transmitting the feedback information;

3) sending a random access signal through any cell with random access channel resources in a first Timing Advance (TA) group, wherein the cell receiving the service data belongs to the first TA group;

4) sending a random access signal through any cell with random access channel resources in a second TA group, wherein a cell to which a feedback channel belongs to the second TA group, and the feedback channel is used for transmitting the feedback information;

5) sending a random access signal through a main cell, wherein the cell receiving the service data belongs to a main timing advance group;

6) sending a random access signal through a main cell, wherein the cell to which a feedback channel belongs to a main timing advance group, and the feedback channel is used for transmitting the feedback information;

7) sending a random access signal through a cell to which a feedback channel belongs, wherein the cell to which the feedback channel belongs to a main timing advance group, and the feedback channel is used for transmitting the feedback information;

8) sending a random access signal through any cell with random access channel resources in an auxiliary timing advance group, wherein the cell receiving the service data belongs to the auxiliary timing advance group;

9) sending a random access signal through any cell with random access channel resources in an auxiliary timing advance group, wherein a cell to which a feedback channel belongs to the auxiliary timing advance group, and the feedback channel is used for transmitting the feedback information;

10) sending a random access signal through a cell to which a feedback channel belongs, wherein the cell to which the feedback channel belongs to a secondary timing advance group, and the feedback channel is used for transmitting the feedback information;

11) sending a random access signal through a downlink timing reference cell in an auxiliary timing advance group, wherein the cell receiving the service data belongs to the auxiliary timing advance group;

12) and sending a random access signal through a downlink timing reference cell in the auxiliary timing advance group, wherein a cell to which a feedback channel belongs to the auxiliary timing advance group, and the feedback channel is used for transmitting the feedback information.

In order to describe the method for sending the feedback information in detail, two specific embodiments are described below.

Example one

In this embodiment, a terminal uses a Physical Random Access Channel (PRACH) to send feedback information of service data, and the embodiment includes the following steps.

Step 1: the network side equipment is configured or agreed by a protocol, and the terminal receives the service data of the specific service, and the feedback information is sent by adopting a physical random access channel.

For example, the network side device configures reception of a Physical Downlink Shared Channel (PDSCH) scheduled by MBS RNTI-1, and the terminal sends feedback information through the terminal-specific random access resource configured by the network.

In this embodiment, the indication information of the specific service includes at least one of: service information; and carrying the identification. For detailed description of the service information and the bearer identifier, reference may be made to the foregoing embodiments, and in order to avoid repetition, the description is not repeated here.

Optionally, in this embodiment, the terminal state of the random access channel used by the terminal for sending the feedback information received by the specific service is any one of the following:

1) the terminal is in an IDLE state (IDLE) or INACTIVE state (INACTIVE).

2) The terminal is in the uplink out-of-synchronization state, for example, although the terminal is in the connected state, the MBS-RNTI PDSCH receives the uplink transmission of the corresponding cell or TA group and is in the out-of-synchronization state.

Optionally, in this embodiment, the content of the feedback information carried by the random access channel is any one of:

1) the reception is successful, e.g., HARQ acknowledgement reception feedback (HARQ ACK).

2) Not successfully received, e.g., HARQ non-received feedback (HARQ NACK).

Step 2: according to the configuration information in step 1, when receiving the service data of the specific service, the terminal sends the feedback information of the service data through the random access channel.

Example two

In this embodiment, the terminal triggers a random access process to acquire uplink synchronization, and sends feedback information of service data when acquiring the uplink synchronization. This embodiment includes the following steps.

Step 1: and the network side equipment configures the uplink resource of the feedback information received by the terminal for the specific service.

For example, the network side device configures the receiving of the PDSCH scheduled by MBS RNTI-1, and the terminal sends the feedback information through a terminal-specific physical uplink control channel (e.g., PUCCH) configured by the network side device.

Optionally, before this embodiment, the network side device may configure, by the configuration information, an indication: when the terminal is out of synchronization in the uplink, whether the random access process can be triggered or not for the feedback information transmission of the specific service. Of course, in this embodiment, when the network side device configures the terminal to be out of synchronization in the uplink, the random access process may be triggered for sending the feedback information of the specific service.

Step 2: according to the configuration in step 1, when the terminal is receiving the service data of the specific service, the terminal sends feedback information to the network side device. If the terminal is receiving the specific service or is about to receive the specific service or is receiving the specific service, if the terminal is in an uplink out-of-step state (for example, TAT is overtime), the terminal triggers a random access process, and sends feedback information of the service data under the condition of acquiring uplink synchronization.

Further, for the contention-based random access procedure, the terminal may use the uplink timing value obtained in the random access procedure (e.g., the uplink timing value carried in the RAR of the Msg 2) for sending feedback information (e.g., HARQ feedback of the PDSCH of MBS-RNTI-1) only when the random access procedure is successfully completed (e.g., contention resolution) by the network-side device configuration or protocol restriction.

Optionally, the terminal initiating the random access procedure in this embodiment includes any one of the following 1) to 12):

1) and sending a random access signal through the cell receiving the service data.

For example, the terminal transmits a random access signal in the cell receiving a specific service. Specifically, if the terminal receives the PDSCH of MBS-RNTI-1 on a Secondary Cell (SCell) -1 and needs to send feedback information on the PUCCH of SCell-1, the terminal sends PRACH on SCell-1.

2) And sending a random access signal through a cell to which a feedback channel belongs, wherein the feedback channel is used for transmitting the feedback information.

For example, the terminal transmits a random access signal in a cell of the feedback channel receiving a specific service. Specifically, if the terminal receives the PDSCH of MBS-RNTI-1 on SCell-1 and needs to send feedback information on the PUCCH of SCell-2, the UE sends PRACH on SCell-2.

3) And sending a random access signal through any cell with random access channel resources in the first Timing Advance (TA) group, wherein the cell receiving the service data belongs to the first TA group.

For example, the terminal transmits a random access signal on any cell having a random access channel resource, which belongs to the same TA group as the cell receiving the specific service. Specifically, if the terminal receives the PDSCH of MBS-RNTI-1 on SCell-1 and needs to send feedback information on the PUCCH of SCell-1, SCell-2 and SCell-1 belong to the same STAG, and SCell-2 is configured with random access resources, the terminal sends PRACH on SCell-2.

4) And sending a random access signal through any cell with random access channel resources in a second TA group, wherein the cell to which a feedback channel belongs to the second TA group, and the feedback channel is used for transmitting the feedback information.

For example, the terminal transmits the random access signal on any cell having random access channel resources, which belongs to the same TA group as the cell receiving the feedback channel of the specific service. Specifically, if the terminal receives the PDSCH of MBS-RNTI-1 on SCell-1 and needs to send feedback information on the PUCCH of SCell-2, SCell-3 and SCell-2 belong to the same Secondary Timing Advance Group (STAG), and SCell-3 is configured with random access resources, then the UE sends PRACH on SCell-3. )

5) And sending a random access signal through a main cell, wherein the cell receiving the service data belongs to a main timing advance group.

For example, if the cell receiving a specific service belongs to a Primary Timing Advance Group (PTAG), the terminal transmits a random access signal on a Primary cell PCell.

6) And sending a random access signal through a main cell, wherein the cell to which a feedback channel belongs to a main timing advance group, and the feedback channel is used for transmitting the feedback information.

For example, if the cell receiving the feedback channel for a specific service belongs to the PTAG, the terminal transmits a random access signal on the PCell.

7) Sending a random access signal through a cell to which a feedback channel belongs, wherein the cell to which the feedback channel belongs to a Primary Timing Advance Group (PTAG), and the feedback channel is used for transmitting the feedback information.

For example, if the cell receiving the feedback channel for a specific service belongs to the PTAG, the terminal transmits a random access signal on the cell of the feedback channel.

8) And sending a random access signal through any cell with random access channel resources in the STAG, wherein the cell receiving the service data belongs to the auxiliary timing advance group.

For example, if the cell receiving a specific service belongs to the STAG, the terminal transmits a random access signal on any cell having a random access channel resource in the STAG.

9) And sending a random access signal through any cell with random access channel resources in the STAG, wherein the cell to which a feedback channel belongs to the STAG, and the feedback channel is used for transmitting the feedback information.

For example, if the cell receiving the feedback channel of a specific service belongs to the STAG, the terminal transmits a random access signal on any cell having random access channel resources in the STAG.

10) And sending a random access signal through a cell to which a feedback channel belongs, wherein the cell to which the feedback channel belongs to the STAG, and the feedback channel is used for transmitting the feedback information.

For example, if the cell receiving the feedback channel of the specific service belongs to the STAG, the terminal transmits a random access signal on the cell of the feedback channel.

11) And sending a random access signal through a downlink timing reference cell in the STAG, wherein the cell receiving the service data belongs to the STAG.

For example, if the cell receiving a specific service belongs to the STAG, the terminal transmits a random access signal on a downlink timing reference cell in the STAG.

12) And sending a random access signal through a downlink timing reference cell in the STAG, wherein a cell to which a feedback channel belongs to the STAG, and the feedback channel is used for transmitting the feedback information.

For example, if the cell receiving the feedback channel of a specific service belongs to the STAG, the terminal transmits a random access signal on a downlink timing reference cell in the STAG.

The method for sending feedback information according to the embodiment of the present application is described in detail above with reference to fig. 2. A method of receiving feedback information according to another embodiment of the present application will be described in detail below with reference to fig. 3. It is to be understood that the interaction between the network side device and the terminal described from the network side device is the same as that described at the terminal side in the method shown in fig. 2, and the related description is appropriately omitted to avoid redundancy.

Fig. 3 is a schematic diagram of an implementation flow of a method for receiving feedback information according to an embodiment of the present application, which may be applied to a network side device. As shown in fig. 3, the method 300 includes:

s302: transmitting service data of a specific service;

s304: receiving feedback information of the service data through a random access channel; or receiving feedback information of the service data through the uplink resource, wherein the feedback information received through the uplink resource is sent by the terminal when the terminal initiates a random access process and acquires uplink synchronization.

In the embodiment of the application, the network side device sends the service data of the specific service, the terminal can send the feedback information of the service data through the random access channel, and can also initiate the random access process to send the feedback information of the service data under the condition of obtaining uplink synchronization, so that the feedback information of the service data can be sent in time, the reliability of sending the feedback information is improved, and the communication efficiency is improved.

Optionally, as an embodiment, the terminal sends the feedback information of the service data through a random access channel, and the state of the terminal is one of the following:

an idle state;

an inactive state;

and (5) ascending the out-of-step state.

Optionally, as an embodiment, before receiving the feedback information of the service data through the uplink resource, the method further includes:

and sending first configuration information, wherein the first configuration information is used for configuring the uplink resources for the terminal.

and sending second configuration information, wherein the second configuration information is used for configuring the terminal to initiate a random access process under the condition of uplink desynchronization so as to send the feedback information under the condition of uplink synchronization.

Optionally, as an embodiment, the initiating, by the terminal, a random access procedure includes one of:

sending a random access signal through a cell receiving the service data;

sending a random access signal through a cell to which a feedback channel belongs, wherein the feedback channel is used for transmitting the feedback information;

sending a random access signal through any cell with random access channel resources in a first Timing Advance (TA) group, wherein the cell receiving the service data belongs to the first TA group;

sending a random access signal through any cell with random access channel resources in a second TA group, wherein a cell to which a feedback channel belongs to the second TA group, and the feedback channel is used for transmitting the feedback information;

sending a random access signal through a main cell, wherein the cell receiving the service data belongs to a main timing advance group;

sending a random access signal through a main cell, wherein the cell to which a feedback channel belongs to a main timing advance group, and the feedback channel is used for transmitting the feedback information;

sending a random access signal through a cell to which a feedback channel belongs, wherein the cell to which the feedback channel belongs to a main timing advance group, and the feedback channel is used for transmitting the feedback information;

sending a random access signal through any cell with random access channel resources in an auxiliary timing advance group, wherein the cell receiving the service data belongs to the auxiliary timing advance group;

sending a random access signal through any cell with random access channel resources in an auxiliary timing advance group, wherein a cell to which a feedback channel belongs to the auxiliary timing advance group, and the feedback channel is used for transmitting the feedback information;

sending a random access signal through a cell to which a feedback channel belongs, wherein the cell to which the feedback channel belongs to a secondary timing advance group, and the feedback channel is used for transmitting the feedback information;

sending a random access signal through a downlink timing reference cell in an auxiliary timing advance group, wherein the cell receiving the service data belongs to the auxiliary timing advance group;

and sending a random access signal through a downlink timing reference cell in the auxiliary timing advance group, wherein a cell to which a feedback channel belongs to the auxiliary timing advance group, and the feedback channel is used for transmitting the feedback information.

In the feedback information transmission method provided in the embodiment of the present application, the execution subject may be a feedback information transmission device, or a control module in the feedback information transmission device for executing the feedback information transmission method. In the embodiments of the present application, a transmission apparatus for feedback information provided in the embodiments of the present application will be described by taking an example in which a transmission apparatus for feedback information executes a transmission method for feedback information.

Fig. 4 is a schematic structural diagram of an apparatus for sending feedback information according to an embodiment of the present application, where the apparatus may correspond to a terminal in another embodiment. As shown in fig. 4, the apparatus 400 includes:

a receiving module 402, which may be configured to receive service data of a specific service;

a sending module 404, configured to send feedback information of the service data through a random access channel; or initiating a random access process, and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

In this embodiment of the present application, the apparatus 400 may send the feedback information of the service data through a random access channel, and may also initiate a random access process, and send the feedback information of the service data under the condition of obtaining uplink synchronization, so that the feedback information of the service data can be sent in time, and the reliability of sending the feedback information is improved, and the communication efficiency is improved.

Optionally, as an embodiment, the sending module 404 sends the feedback information of the service data through a random access channel, and the state of the apparatus 400 is one of the following:

an idle state;

an inactive state;

and (5) ascending the out-of-step state.

Optionally, as an embodiment, the receiving module 402 may be further configured to receive first configuration information, where the first configuration information is used to configure an uplink resource, and the uplink resource is used to send the feedback information; the sending module 404 may be configured to send feedback information of the service data through the uplink resource when uplink synchronization is obtained.

Optionally, as an embodiment, the receiving module 402 may be further configured to receive second configuration information, where the second configuration information is used to configure to initiate a random access procedure in case of uplink out-of-synchronization, so as to send the feedback information in case of uplink synchronization.

Optionally, as an embodiment, the sending module 404 may be configured to initiate a contention-based random access procedure; and under the condition that the contention-based random access process is successfully completed, sending feedback information of the service data by using an uplink timing value obtained in the contention-based random access process.

Optionally, as an embodiment, the apparatus initiates a random access procedure, and sends feedback information of the service data when uplink synchronization is achieved, wherein,

when the device receives the service data of the specific service, the device is in an uplink out-of-step state; or

The device is in an uplink out-of-step state before receiving the service data of the specific service; or

The apparatus is in an uplink out-of-synchronization state after receiving the particular traffic and before initiating the random access procedure.

Optionally, as an embodiment, the sending module 404 may be configured to:

sending a random access signal through a cell receiving the service data;

Optionally, as an embodiment, the indication information of the specific service includes at least one of:

service information;

and carrying the identification.

Optionally, as an embodiment, the service information includes at least one of the following:

service identification;

a service name;

service explanation;

the sending address of the service;

a transmission protocol of the service;

a session identifier;

a service type indication;

and (5) scheduling identification.

Optionally, as an embodiment, the bearer identifier includes at least one of:

a data stream identification;

a session identifier;

a radio bearer identity;

a logical channel identification.

Optionally, as an embodiment, the feedback information is used to indicate at least one of:

the service data is successfully received;

the service data is not successfully received.

The apparatus 400 according to the embodiment of the present application may refer to the flow corresponding to the method 200 according to the embodiment of the present application, and each unit/module and the other operations and/or functions described above in the apparatus 400 are respectively for implementing the corresponding flow in the method 200 and achieving the same or equivalent technical effects, and are not described herein again for brevity.

The sending device of the feedback information in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The sending device of the feedback information in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The device for sending feedback information provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

Fig. 5 is a schematic structural diagram of an apparatus for receiving feedback information according to an embodiment of the present application, where the apparatus may correspond to a network-side device in another embodiment. As shown in fig. 5, the apparatus 500 includes:

a sending module 502, which may be configured to send service data of a specific service;

a receiving module 504, configured to receive feedback information of the service data through a random access channel; or receiving feedback information of the service data through uplink resources, wherein the feedback information received through the uplink resources is sent by the terminal when the terminal initiates a random access process and acquires uplink synchronization.

In this embodiment of the present application, the apparatus 500 sends service data of a specific service, and the terminal may send feedback information of the service data through a random access channel, and may also initiate a random access process, and send the feedback information of the service data under the condition of obtaining uplink synchronization, so that the feedback information of the service data can be sent in time, and reliability of sending the feedback information is improved, and communication efficiency is improved.

an idle state;

an inactive state;

and (5) ascending the out-of-step state.

Optionally, as an embodiment, the sending module 502 may be further configured to send first configuration information, where the first configuration information is used to configure the uplink resource for the terminal.

Optionally, as an embodiment, the sending module 502 may be further configured to send second configuration information, where the second configuration information is used to configure the terminal to initiate a random access procedure when the uplink is out of synchronization, so as to send the feedback information when the uplink is synchronized.

sending a random access signal through a cell receiving the service data;

The apparatus 500 according to the embodiment of the present application may refer to the flow corresponding to the method 300 of the embodiment of the present application, and each unit/module and the other operations and/or functions described above in the apparatus 500 are respectively for implementing the corresponding flow in the method 300 and achieving the same or equivalent technical effects, and are not described herein again for brevity.

Optionally, as shown in fig. 6, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement each process of the above-mentioned embodiment of the method for sending the feedback information, and can achieve the same technical effect. When the communication device 600 is a network-side device, the program or the instruction is executed by the processor 601 to implement the processes of the above-mentioned embodiments of the method for receiving feedback information, and the same technical effect can be achieved.

Fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts of a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 701 receives downlink data from a network side device and then processes the downlink data in the processor 710; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions as well as various data. The memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. In addition, the Memory 709 may include a high-speed random access Memory and a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 710 may include one or more processing units; alternatively, processor 710 may integrate an application processor that handles primarily the operating system, user interface, and application programs or instructions, etc. and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 710.

The radio frequency unit 701 is configured to receive service data of a specific service; sending feedback information of the service data through a random access channel; or initiating a random access process, and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 8, the network device 800 includes: antenna 81, radio frequency device 82, baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the rf device 82 receives information via the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted and transmits the information to the rf device 82, and the rf device 82 processes the received information and transmits the processed information through the antenna 81.

The above band processing means may be located in the baseband device 83, and the method performed by the network side device in the above embodiment may be implemented in the baseband device 83, where the baseband device 83 includes a processor 84 and a memory 85.

The baseband device 83 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, wherein one chip, for example, the processor 84, is connected to the memory 85 to call up the program in the memory 85 to perform the network device operation shown in the above method embodiment.

The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82, such as a Common Public Radio Interface (CPRI).

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute the methods executed by the modules shown in fig. 5, and achieve the same technical effects, which are not described herein for avoiding repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned method for transmitting (transmitting/receiving) feedback information, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.

The processor may be the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the above-mentioned transmission (transmission/reception) method embodiment of feedback information, and can achieve the same technical effect, and is not described here again to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for sending feedback information is applied to a terminal, and is characterized in that the method comprises the following steps:

receiving service data of a specific service;

sending feedback information of the service data through a random access channel; or initiating a random access process, and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

2. The method of claim 1, wherein the terminal sends the feedback information of the service data through a random access channel, and the state of the terminal is one of:

an idle state;

an inactive state;

and (5) ascending the out-of-step state.

3. The method of claim 1, wherein prior to the initiating the random access procedure, the method further comprises:

receiving first configuration information, where the first configuration information is used to configure an uplink resource for the terminal, and the uplink resource is used to send the feedback information;

wherein the transmitting the feedback information of the service data when acquiring uplink synchronization includes: and sending feedback information of the service data through the uplink resource when uplink synchronization is acquired.

4. The method of claim 1, wherein prior to the initiating the random access procedure, the method further comprises:

and receiving second configuration information, wherein the second configuration information is used for configuring the terminal to initiate a random access process under the condition of uplink desynchronization so as to send the feedback information under the condition of uplink synchronization.

5. The method of claim 1, wherein the initiating the random access procedure and sending the feedback information of the service data while acquiring uplink synchronization comprises:

initiating a contention-based random access procedure;

and under the condition that the contention-based random access process is successfully completed, sending feedback information of the service data by using an uplink timing value obtained in the contention-based random access process.

6. The method of claim 1, wherein the terminal initiates a random access procedure and sends the feedback information of the service data when uplink synchronization is achieved, wherein,

when the terminal receives the service data of the specific service, the terminal is in an uplink out-of-step state; or

The terminal is in an uplink out-of-step state before receiving the service data of the specific service; or

And the terminal is in an uplink out-of-step state after receiving the specific service and before initiating the random access process.

7. The method of claim 1, wherein the initiating a random access procedure comprises one of:

sending a random access signal through a cell receiving the service data;

8. The method according to any of claims 1 to 7, wherein the indication information of the specific service comprises at least one of the following:

service information;

and carrying the identification.

9. The method of claim 8, wherein the service information comprises at least one of:

service identification;

a service name;

service explanation;

the sending address of the service;

a transmission protocol of the service;

a session identifier;

a service type indication;

and (5) scheduling identification.

10. The method of claim 8, wherein the bearer identity comprises at least one of:

a data stream identification;

a session identifier;

a radio bearer identity;

a logical channel identification.

11. The method of claim 1, wherein the feedback information is used to indicate at least one of:

the service data is successfully received;

the service data is not successfully received.

12. A method for receiving feedback information is applied to a network side device, and is characterized in that the method comprises the following steps:

transmitting service data of a specific service;

receiving feedback information of the service data through a random access channel; or receiving feedback information of the service data through uplink resources, wherein the feedback information received through the uplink resources is sent by a terminal when the terminal initiates a random access process and acquires uplink synchronization.

13. The method of claim 12, wherein the terminal sends the feedback information of the service data through a random access channel, and the state of the terminal is one of:

an idle state;

an inactive state;

and (5) ascending the out-of-step state.

14. The method of claim 12, wherein before the receiving the feedback information of the service data through the uplink resource, the method further comprises:

15. The method of claim 12, wherein before the receiving the feedback information of the service data through the uplink resource, the method further comprises:

16. The method of claim 12, wherein the terminal initiates a random access procedure comprising one of:

sending a random access signal through a cell receiving the service data;

17. An apparatus for transmitting feedback information, comprising:

the receiving module is used for receiving the service data of the specific service;

a sending module, configured to send feedback information of the service data through a random access channel; or initiating a random access process, and sending the feedback information of the service data under the condition of acquiring uplink synchronization.

18. The apparatus of claim 17, wherein the receiving module is further configured to:

receiving first configuration information, where the first configuration information is used to configure an uplink resource for the apparatus, and the uplink resource is used to send the feedback information;

the sending module is configured to send feedback information of the service data through the uplink resource when uplink synchronization is obtained.

19. The apparatus of claim 17, wherein the receiving module is further configured to:

and receiving second configuration information, where the second configuration information is used to configure the apparatus to initiate a random access process when the uplink is out of synchronization, so as to send the feedback information when the uplink is synchronized.

20. The apparatus of claim 17, wherein the sending module is configured to:

initiating a contention-based random access procedure;

21. The apparatus of claim 17, wherein the sending module is configured to one of:

sending a random access signal through a cell receiving the service data;

22. An apparatus for receiving feedback information, comprising:

the sending module is used for sending the service data of the specific service;

a receiving module, configured to receive feedback information of the service data through a random access channel; or receiving feedback information of the service data through uplink resources, wherein the feedback information received through the uplink resources is sent by a terminal when the terminal initiates a random access process and acquires uplink synchronization.

23. The apparatus of claim 22, wherein the sending module is further configured to:

24. The apparatus of claim 22, wherein the sending module is further configured to:

25. A terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the method of transmitting feedback information according to any one of claims 1 to 11.

26. A network-side device, comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the method for receiving feedback information according to any one of claims 12 to 16.

27. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions which, when executed by the processor, implement the transmission method of feedback information according to any one of claims 1 to 11, or implement the reception method of feedback information according to any one of claims 12 to 16.