Patent Description:
Continuous emergence of new Internet applications such as Augmented Reality (abbreviated to AR), Virtual Reality (abbreviated to VR) and vehicle-to-vehicle communication has placed relatively high requirements on wireless communication technology, driving wireless communication technology continue to evolve to meet needs of applications. At present, the cellular mobile communication technology is in an evolution stage of a new generation technology. An important feature of the new generation technology is to support flexible configurations of multiple service types. Because different service types have different requirements for wireless communication technologies, for example, requirements of enhanced Mobile Broad Band (abbreviated to eMBB) service types lay emphasis on aspects of large bandwidths, high speeds and the like, main requirements of Ultra Reliable Low Latency Communication (abbreviated to URLLC) service types lay emphasis on aspects of relatively high reliability and low latency, and main requirements for mass Machine Type Communication (abbreviated to mMTC) service types lay emphasis on aspects of large connections, a new generation of wireless communication systems need flexible and configurable designs to support transmission of multiple service types.

In a wireless communication system, the time-varying characteristics and multi-path fading of a wireless channel may affect transmission of signals, resulting in data transmission failure. In order to solve this problem, in a traditional wireless communication system, a Hybrid Automatic Repeat request (abbreviated to HARQ) mechanism is introduced, through the feedback of the receiving side on whether the data is received correctly or not, the sending side determines whether it is necessary to re-send the sent packet. In a traditional Long-Term Evolution (LTE) system, there is a timing relationship between the time of transmission of data and the time of acknowledgement (ACK) feedback or non-acknowledgement (NACK) feedback. Limited by processing capabilities of terminals, in the LTE, there is at least <NUM> milliseconds (ms) between the time of transmission of data and the time of ACK feedback or NACK feedback. In the LTE system, a HARQ feedback of a downlink data packet is synchronous, that is, there is a fixed timing relationship between the transmission of a downlink data packet and the uplink ACK feedback or NACK feedback for the data packet. The HARQ feedback of the uplink data packet may be synchronous or asynchronous.

With enhancement on terminal capabilities, the terminal may have relatively strong processing capabilities. In this case, the terminal may perform ACK or NACK feedback relatively fast on received data, to reduce latency of data transmission, which is important for some services, such as URLLC services, that have relatively high requirements on latency. The traditional HARQ timing feedback method is no longer suitable for this scenario.

<CIT> discloses a wireless communication device, including a data processing unit that generates a data packet, and a transmitter unit that transmits the data packet generated by the data processing unit, wherein the data processing unit sets information for use other than an NAV setting to a Duration field in the data packet.

Publication "<NPL>, teaches dynamic HARQ timing and PUCCH resource indication via DCI and higher layer.

<CIT> discloses Feedback Timing Indicator (FTI) in DCI to signal dynamic HARQ feedback timing.

<CIT> discloses dynamic HARQ feedback timing and resource indication via RRC/DCI in unlicensed band.

Accordingly, the present application provides a HARQ feedback indication method, a HARQ feedback method and a base station, a user equipment in accordance with claims which follow. Further advantageous embodiments are set out in the appended depenent claims.

According to a first aspect of embodiments of the present disclosure, there is provided a hybrid automatic repeat request HARQ feedback indication method according to appended claim <NUM>.

According to a second aspect of embodiments of the present disclosure, there is provided a hybrid automatic repeat request HARQ feedback method according to appended claim <NUM>.

According to another aspect of the present disclosure, there is provided a base station according to appended claim <NUM>.

According to another aspect of embodiments of the present disclosure, there is provided a user equipment according to appended claim <NUM>.

Technical solutions provided by embodiments of the present disclosure may include the following beneficial effects:
through that a timing relationship between the time domain unit where current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data is added to control information, and the current downlink data and the control information added with timing information is sent to a terminal, the terminal may send uplink HARQ feedback information of the current downlink data to the base station according to the timing relationship, thereby implementing a dynamic HARQ feedback.

Through receiving current downlink data sent by a base station and control information added with a timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data sent by the base station, the timing relationship from the control information is parsed, and an uplink HARQ feedback information of the current downlink data is sent to the base station in a corresponding time domain unit according to the timing relationship and the time domain unit where the current downlink data is located, thereby implementing a dynamic HARQ feedback.

Through receiving current uplink data sent by a terminal and sending downlink HARQ feedback information of the current uplink data to the terminal in one or more time domain units next to a unit for receiving the current uplink data sent by the terminal, the terminal is thereby supported to achieve a dynamic HARQ feedback.

It should be understood that above general descriptions and the following detailed descriptions are merely exemplary and explanatory, and should not limit the present disclosure.

The accompanying drawings herein are incorporated into the specification and constitute a part of the present specification, illustrate embodiments conforming to the present disclosure, and serve to explain principles of the present disclosure in conjunction with the specification.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, unless other indicated, the same numbers in different accompanying drawings indicate the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of apparatus and methods consistent with aspects as detailed in the appended claims of the present disclosure.

<FIG> is a flowchart of a HARQ feedback indication method according to an exemplary embodiment of the present application, the embodiment is described from the base station side, and the embodiment describes the HARQ feedback indication method using uplink feedback of downlink data as an example. As shown in <FIG>, the HARQ feedback indication method includes the following.

In operation S101, a timing relationship between a time domain unit where downlink data is configured and a time domain unit for an uplink HARQ feedback of the downlink data is configured in control information.

In some embodiments, the control information may include, but is not limited to, radio resource control (RRC) signaling, media access control (MAC) control element (CE), or physical layer signaling and the like, where the physical layer signaling includes downlink control information (DCI).

When the control information is DCI, the above timing relationship may be configured in an information domain of the DCI, and the information domain may be configured at a fixed location or a configurable location in the DCI. When the location of the information domain is configurable, a base station may notify a terminal of the location of the information domain via RRC signaling, MAC CE or physical layer signaling and the like. Moreover, a length of the information domain may be fixed, and also may be pre-determined with the terminal, and still also may be configurable. If the length of the information domain is configurable, the base station may notify the terminal of the length of the information domain via RRC signaling, MAC CE or physical layer signaling and the like.

When the control information is signaling, the signaling may include RRC signaling, MAC CE or physical layer signaling. At this time, the timing relationship may be one value, for example, two symbols or four symbols, and may also be multiple values, for example, two symbols, three symbols and four symbols.

When the control information is DCI, the method may further include: sending signaling which is used for triggering dynamic HARQ feedback to the terminal, so that the terminal may trigger the dynamic HARQ feedback based on the signaling. Where the signaling used to trigger dynamic HARQ feedback may include RRC signaling, MAC CE or physical layer signaling.

In this embodiment, the timing relationship may be configured in different control information, and the implementation manner is flexible and diverse.

In operation S102, the downlink data and the control information configured with the timing relationship are sent to the terminal.

In this embodiment, after configuring the timing relationship in the control information, the downlink data and the control information configured with the above timing information may be sent to the terminal. After receiving the control information, the terminal may send uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the timing relationship and the time domain unit where the downlink data is configured, so as to implement a dynamic HARQ feedback.

In the above described embodiments, through that the timing relationship between the time domain unit where the downlink data is configured and the time domain unit of the uplink HARQ feedback of the downlink data is configured in the control information, and the downlink data and the control information configured with timing information is sent to the terminal, the terminal may send uplink HARQ feedback information of the downlink data to the base station according to the timing relationship, thereby implementing a dynamic HARQ feedback.

<FIG> is a flowchart of another HARQ feedback indication method according to an exemplary embodiment of the present application. As shown in <FIG>, the HARQ feedback indication method includes the following.

In operation S201, sending signaling for triggering dynamic HARQ feedback to a terminal.

Where the signaling for triggering dynamic HARQ feedback includes RRC signaling, MAC CE or physical layer signaling.

In the embodiment, before a base station sending the signaling for triggering the dynamic HARQ feedback to the terminal, a default timing relationship between a time domain unit where the downlink data is configured and a time domain unit for an uplink HARQ feedback of the downlink data may also be defined in advance, alternatively, the default timing relationship is carried in RRC signaling, MAC CE or physical layer signaling to be notified to the terminal.

In the embodiment, there are a plurality of trigger conditions on which the base station sends signaling to the terminal for triggering dynamic HARQ feedback. For example, the base station has detected that the service was switched to a preset type service. For another example, the base station receives the service information reported by the terminal, and determines that the service is switched to a preset type service according to the service information, where the preset type service may include, but are not limited to, low-latency service.

It should be noted that the trigger conditions listed above are only examples. In actual applications, there may also be other trigger conditions.

In operation S202, a timing relationship between a time domain unit where downlink data is configured and a time domain unit for an uplink HARQ feedback of downlink data is configured in the DCI.

Where the timing relationship may be configured in the DCI as well as other control information. The DCI listed here is only an example.

In operation S203, the downlink data and the DCI configured with the above timing information to the terminal are sent.

Where operation S201 and operations S202 to S203 have no strict sequential relationship, that is, operation S201 may be performed first, and then operations S202 to S203 may be performed, or operations S202 to S203 may be performed first, and then operation S201 may be performed.

In the above described embodiments, through sending signaling for triggering dynamic HARQ feedback to the terminal and sending the downlink data and DCI with timing information configured in the terminal, the terminal may a trigger dynamic HARQ feedback based on the signaling.

<FIG> is a flowchart of a HARQ feedback method according to an exemplary embodiment of the present application. This embodiment is described from a terminal side. As shown in <FIG>, the HARQ feedback method includes the following.

In operation S301, downlink data sent by a base station and control information configured with a timing relationship between a time domain unit where the downlink data is configured and a time domain unit for an uplink HARQ feedback of the downlink data sent by the base station are received.

Where, the control information may include, but is not limited to, downlink control information (DCI), radio resource control (RRC) signaling, media access control (MAC) control element (CE), or physical layer signaling and the like.

In operation S302, the timing relationship from the control information is parsed.

When the control information is DCI, the timing relationship is configured in an information domain of the DCI, and the information domain is in a fixed or configurable location in the DCI, and the length of the information domain is fixed or configurable, the terminal may detect the information domain of the fixed length or the configurable length at the fixed location in the DCI, to obtain the timing relationship.

When the control information is RRC signaling, MAC CE or physical layer signaling, the terminal may parse the timing relationship from the corresponding signaling.

In operation S303, sending uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the timing relationship and the time domain unit where the downlink data is configured.

Where when the control information is radio resource control RRC signaling, media access control MAC control element CE or physical layer signaling, and the timing relationship is one value, the terminal may send uplink HARQ feedback information of the downlink data to the base station in one corresponding time domain unit according to the timing relationship and the time domain unit where the downlink data is configured.

For example, as shown in <FIG>, the terminal performs downlink data transmission on symbol <NUM>. Assuming that the timing relationship is <NUM> symbols, the uplink HARQ feedback for the downlink data is transmitted on symbol <NUM>.

Where when the control information is RRC signaling, MAC CE, or physical layer signaling, and the timing relationship is a plurality of values, the terminal may send uplink HARQ feedback information of the downlink data to the base station in the corresponding multiple time domain units respectively according to the timing relationship and the time domain unit where the downlink data is configured.

For example, as shown in <FIG>, the terminal performs downlink data transmission on symbol <NUM>. Assuming that the timing relationship is <NUM> symbols, <NUM> symbols and <NUM> symbols, the uplink HARQ feedback for the downlink data is transmitted on symbol <NUM>, symbol <NUM> and symbol <NUM>.

In the above described embodiments, through receiving downlink data sent by a base station and control information configured with a timing relationship between the time domain unit where the downlink data is configured and the time domain unit of the uplink HARQ feedback of the downlink data sent by the base station, parsing the timing relationship from the control information, and sending uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the timing relationship and the time domain unit where the downlink data is configured, thereby a dynamic HARQ feedback is implemented.

<FIG> is a flowchart of another HARQ feedback method according to an exemplary embodiment of the present application. The embodiment is described from a terminal side. As shown in <FIG>, the HARQ feedback method includes the following.

In operation S601, signaling for triggering dynamic HARQ feedback sent by the base station is received.

A timing relationship between the time domain unit where an initial downlink data of the terminal is configured and the time domain unit of the uplink HARQ feedback of the downlink data is a default value, that is, the terminal has a default timing relationship. The terminal may obtain the default timing relationship in a predefined manner, and may also obtain the default timing relationship from RRC signaling, MAC CE, or physical layer signaling sent by the base station.

In operation S602, downlink data and DCI configured with a timing relationship between a time domain unit where downlink data is configured and a time domain unit for an uplink HARQ feedback of the downlink data are received.

In operation S603, the timing relationship from the DCI is parsed.

In operation S604, uplink HARQ feedback information of the downlink data is sent to the base station in a corresponding time domain unit according to the timing relationship and the time domain unit where the downlink data is configured.

After receiving the signaling for triggering dynamic HARQ feedback sent by the base station, the terminal parses the timing relationship from the received DCI, and perform a feedback on the received downlink data in the corresponding time domain unit.

In addition, before the received signaling for triggering dynamic HARQ feedback takes effective, the terminal may obtain a default timing relationship, and send uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the default timing relationship and the time domain unit where the downlink data is configured.

In the above described embodiments, through receiving sent by the base station signaling for triggering dynamic HARQ feedback, parsing the timing relationship from the DCI according to the signaling, and sending uplink HARQ feedback information to the base station in the corresponding time domain unit according to the timing relationship, thereby a dynamic HARQ feedback is implemented.

<FIG> is a flowchart of another HARQ feedback method according to an exemplary embodiment of the present application. This embodiment is described from the base station side. The embodiment describes the HARQ feedback method by using a downlink feedback of uplink data as an example. As shown in <FIG>, the HARQ feedback method includes the following.

In operation S701, uplink data sent by a terminal is received.

In operation S702, downlink HARQ feedback information of the uplink data is sent to the terminal in one or more time domain units after receiving the uplink data sent by the terminal.

In this embodiment, after receiving the uplink data sent by the terminal, the base station may send the downlink HARQ feedback information of the uplink data to the terminal in some or certain time domain units after receiving the uplink data sent by the terminal. The downlink HARQ feedback information may be carried on a physical downlink control channel (PDCCH) or a newly defined channel for carrying feedback information, and the PDCCH or the newly defined channel for carrying feedback information may also implicitly or explicitly include identification information containing the uplink data targeted by the downlink feedback information. Preferably, the PDCCH includes downlink feedback information for uplink data of a plurality of terminals. After receiving the downlink HARQ feedback information of the uplink data, the terminal may decide whether to re-send the uplink data according to the HARQ feedback information.

In the above described embodiments, through having received the uplink data sent by the terminal, and sending downlink HARQ feedback information of the uplink data to the terminal in one or more time domain units after receiving the uplink data sent by the terminal, the terminal is supported to achieve a dynamic HARQ feedback.

<FIG> is a block diagram of a HARQ feedback indication apparatus according to an exemplary embodiment, and the apparatus may be located in a base station. As shown in <FIG>, the apparatus includes: an adding module <NUM> and a first sending module <NUM>.

The adding module <NUM> is configured to configure a timing relationship between the time domain unit where downlink data is configured and a time domain unit for an uplink HARQ feedback of the downlink data to control information.

Where the control information may include, but is not limited to, downlink control information (DCI), radio resource control (RRC) signaling, media access control (MAC) control element (CE), or physical layer signaling and the like.

When the control information is DCI, the above timing relationship may be configured in an information domain of the DCI, and the information domain may be configured at a fixed location or a configurable location in the DCI Moreover, a length of the information domain may be fixed, or may also be pre-determined with the terminal, and still also may be configurable. If the length of the information domain is configurable, the base station may notify the terminal of the length of the information domain via RRC signaling, MAC CE or physical layer signaling.

The first sending module <NUM> is configured to send the downlink data and control information configured with the timing relationship by the adding module <NUM> to the terminal.

In this embodiment, after configuring the timing relationship to the control information, the downlink data and the control information configured with the above timing information may be sent to the terminal. After receiving the control information, the terminal may send uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the timing relationship and the time domain unit where the downlink data is configured, so as to implement a dynamic HARQ feedback.

<FIG> is a block diagram of another HARQ feedback indication apparatus according to an exemplary embodiment. As shown in <FIG>, based on the embodiments shown in <FIG>, the apparatus may further include a second sending module <NUM>.

The second sending module <NUM> is configured to send signaling for triggering dynamic HARQ feedback to the terminal.

Where the signaling for triggering dynamic HARQ feedback may include RRC signaling, MAC CE or physical layer signaling.

In the embodiment, there are a plurality of trigger conditions on which the base station sends signaling to the terminal for triggering dynamic HARQ feedback For example, the base station has detected that the service was switched to a preset type service. For another example, the base station receives the service information reported by the terminal, and determines that the service is switched to a preset type service according to the service information, where the preset type service may include, but are not limited to, low-latency service.

In the above described embodiments, through sending signaling for triggering dynamic HARQ feedback to the terminal and sending the downlink data and DCI configured with timing information to the terminal, the terminal may trigger dynamic HARQ feedback based on the signaling.

<FIG> is a block diagram of a HARQ feedback apparatus according to an exemplary embodiment, and the apparatus may be configured in a terminal. As shown in <FIG>, the apparatus includes a first receiving module <NUM>, a parsing module <NUM>, and a third sending module <NUM>.

The first receiving module <NUM> is configured to receive downlink data sent by a base station and control information configured with a timing relationship between a time domain unit where the downlink data is configured and a time domain unit for an uplink HARQ feedback of the downlink data sent by the base station.

The parsing module <NUM> is configured to parse the timing relationship from the control information received by the first receiving module <NUM>.

The third sending module <NUM> is configured to send uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the timing relationship parsed by the parsing module <NUM> and time domain unit where the downlink data is configured.

Where, when the control information is radio resource control RRC signaling, media access control MAC control element CE or physical layer signaling, and the timing relationship is one value, the third sending module <NUM> may send uplink HARQ feedback information of the downlink data to the base station in one corresponding time domain unit according to the timing relationship and the time domain unit where the downlink data is configured.

Where when the control information is RRC signaling, MAC CE, or physical layer signaling, and the timing relationship is a plurality of values, the third sending module <NUM> may send uplink HARQ feedback information of the downlink data to the base station in the corresponding multiple time domain units respectively according to the timing relationship and the time domain unit where the downlink data is configured.

<FIG> is a block diagram of another HARQ feedback apparatus according to an exemplary embodiment. As shown in <FIG>, based on the embodiments shown in <FIG>, the apparatus may further include a second receiving module <NUM>.

The second receiving module <NUM> is configured to receive signaling for triggering dynamic HARQ feedback sent by the base station before the parsing module <NUM> parses the timing relationship from the control information.

In the above described embodiments, through receiving signaling for triggering dynamic HARQ feedback sent by the base station, parsing the timing relationship from the DCI according to the signaling, and sending uplink HARQ feedback information to the base station in a corresponding time domain unit according to the timing relationship, thereby a dynamic HARQ feedback is implemented.

<FIG> is a block diagram of another HARQ feedback apparatus according to an exemplary embodiment. As shown in <FIG>, based on the embodiment shown in <FIG>, the apparatus may further include: an obtaining and sending module <NUM>.

The obtaining and sending module <NUM> is configured to obtain a default timing relationship before the signaling received by the second receiving module <NUM> for triggering dynamic HARQ feedback takes effective, and send the uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the default timing relationship and the time domain unit where the downlink data is configured.

A timing relationship between the time domain unit where an initial downlink data of the terminal is configured and the time domain unit of the uplink HARQ feedback of the downlink data is a default value, that is, the terminal has a default timing relationship.

Before the received signaling for triggering dynamic HARQ feedback takes effective, the terminal may obtain a default timing relationship, and send uplink HARQ feedback information of the downlink data to the base station in a corresponding time domain unit according to the default timing relationship and the time domain unit where the downlink data is configured.

In the above described embodiments, before the received signaling for triggering dynamic HARQ feedback takes effective, a default timing relationship may be obtained, and the uplink HARQ feedback information of the downlink data is sent to the base station in a corresponding time domain unit according to the default timing relationship and the time domain unit where the downlink data is configured, thereby implementing an uplink HARQ feedback on the downlink data.

<FIG> is a block diagram illustrating another HARQ feedback apparatus according to an exemplary embodiment, and the apparatus may be located in a base station. As shown in <FIG>, the apparatus includes a third receiving module <NUM> and a fourth sending module <NUM>.

The third receiving module <NUM> is configured to receive uplink data sent by a terminal.

The fourth sending module <NUM> is configured to send downlink HARQ feedback information of the uplink data received by the third receiving module <NUM> to the terminal in one or more time domain units next to a unit for receiving the uplink data sent by the terminal.

In the embodiment, after receiving the uplink data sent by the terminal, the base station may send the downlink HARQ feedback information of the uplink data to the terminal in some or certain time domain units after receiving the uplink data sent by the terminal. The downlink HARQ feedback information may be carried on a physical downlink control channel (PDCCH) or a newly defined channel for carrying feedback information, and the PDCCH or the newly defined channel for carrying feedback information may also implicitly or explicitly include identification information containing the uplink data targeted by the downlink feedback information. Preferably, the PDCCH includes downlink feedback information for uplink data of a plurality of terminals. After receiving the downlink HARQ feedback information of the uplink data, the terminal may decide whether to re-send the uplink data according to the HARQ feedback information.

<FIG> is another block diagram applied to a HARQ feedback indication apparatus according to an exemplary embodiment. The apparatus <NUM> may be provided as a base station. Referring to <FIG>, the apparatus <NUM> includes a processing component <NUM>, a wireless transmitting/receiving component <NUM>, an antenna component <NUM>, and a signal processing portion unique to a wireless interface. The processing component <NUM> may further include one or more processors.

One of the processors from the processing component <NUM> may be configured to:.

In exemplary embodiments, there is also provided a non-transitory computer-readable storage medium including instructions, the above described instructions may be executed by the processing component <NUM> of the apparatus <NUM> to complete the above-mentioned Hybrid Automatic Repeat reQuest HARQ feedback indication method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk and an optical data storage apparatus and the like.

<FIG> is a block diagram applied to a HARQ feedback apparatus according to an exemplary embodiment. For example, the apparatus <NUM> may be a user equipment such as a mobile phone, a computer, a digital broadcasting terminal, a message receiving and sending device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant and the like.

Referring to <FIG>, the apparatus <NUM> may include one or more of the following components: a processing component <NUM>, a memory <NUM>, a power component <NUM>, a multimedia component <NUM>, an audio component <NUM>, an input/output (I/O) interface <NUM>, a sensor component <NUM> and a communication component <NUM>.

The processing component <NUM> typically controls overall operations of the apparatus <NUM>, such as the operations associated with displays, telephone calls, data communication, camera operations and recording operations. The processing component <NUM> may include one or more processors <NUM> to execute instructions to perform all or part of the operations in the above described methods. For instance, the processing component <NUM> may include a multimedia module to facilitate interactions between the multimedia component <NUM> and the processing component <NUM>.

One of the processors <NUM> from the processing component <NUM> may be configured to:.

The memory <NUM> is configured to store various types of data to support operations on the apparatus <NUM>. Examples of such data include instructions, contact data, phonebook data, messages, pictures, videos and the like for any applications or methods operated on the apparatus <NUM>. The memory <NUM> may be implemented by using any type of volatile or nonvolatile memory devices or a combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic memory, a flash memory and a magnetic or optical disk.

The power component <NUM> may include a power management system, one or more power sources and any other components associated with generation, management and distribution of power for the apparatus <NUM>.

The multimedia component <NUM> includes a screen providing an output interface between the apparatus <NUM> and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen, to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slips and gestures on the touch panel. The touch sensors may not only sense a boundary of a touch or slip action, but also detect duration and a pressure associated with the touch or the slip action. The front camera and the rear camera may receive external multimedia data when the apparatus <NUM> is in an operation mode, such as a photographing mode or a video mode. Each of the front camera and the rear camera may be a fixed optical lens system or have focus and an optical zoom capability.

The audio component <NUM> is configured to output and/or input audio signals. For example, the audio component <NUM> includes a microphone (MIC) configured to receive an external audio signal when the apparatus <NUM> is in an operation mode, such as a call mode, a recording mode or a voice recognition mode. The received audio signal may be further stored in the memory <NUM> or transmitted via the communication component <NUM>. In some embodiments, the audio component <NUM> further includes a speaker, to output audio signals.

The I/O interface <NUM> provides an interface between the processing component <NUM> and peripheral interface modules, and the above peripheral interface modules may be such as a keyboard, a click wheel, buttons and the like. These buttons may include, but are not limited to, a home button, a volume button, a starting button and a locking button.

The sensor component <NUM> includes one or more sensors used to provide status assessments of various aspects for the apparatus <NUM>. For instance, the sensor component <NUM> may detect an open/closed status of the apparatus <NUM>, relative positioning of components, e.g., the components may be a display and a keypad of the apparatus <NUM>; the sensor component <NUM> may also detect a change in position of the apparatus <NUM> or a component of the apparatus <NUM>, presence or absence of user contact with the apparatus <NUM>, an orientation or an acceleration/deceleration of the apparatus <NUM> and a change in temperature of the apparatus <NUM>. The sensor component <NUM> may include a proximity sensor configured to detect presence of nearby objects without any physical contact. The sensor component <NUM> may further include a light sensor, such as a CMOS or CCD image sensor for use in imaging applications. In some embodiments, the sensor component <NUM> may further include an accelerometer sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

The communication component <NUM> is configured to facilitate communication, wired or wirelessly, between the apparatus1200 and other apparatuses. The apparatus <NUM> may access a wireless network based on a communication standard, such as WiFi, <NUM>, <NUM>, <NUM> or <NUM>, or a combination thereof. In one exemplary embodiment, the communication component <NUM> receives a broadcast signal or broadcast-associated information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component <NUM> further includes a Near Field Communication (NFC) module, to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In exemplary embodiments, the apparatus <NUM> may be realized with one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processors (DSP), Digital Signal Processing Devices (DSPD), Programmable Logic Devices (PLD), Field Programmable Gate Arrays (FPGA), controllers, micro-controllers, micro-processors or other electronic components, for performing above-mentioned method.

In exemplary embodiments, there is also provided a non-transitory computer-readable storage medium including instructions, for example, a memory <NUM> including instructions, and the above instructions may be executed by the processor <NUM> of the apparatus <NUM> to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk and an optical data storage device and the like.

<FIG> is a block diagram applied to a HARQ feedback apparatus according to an exemplary embodiment, the apparatus <NUM> may be provided as a base station. Refer to <FIG>, the apparatus <NUM> includes a processing component <NUM>, a wireless transmitting/receiving component <NUM>, an antenna component <NUM>, and a signal processing portion unique to a wireless interface. The processing component <NUM> may further include one or more processors.

One of the processors in processing component <NUM> may be configured to:.

In exemplary embodiments, there is also provided a non-transitory computer-readable storage medium including instructions, and the above described instructions may be executed by the processing component <NUM> of the apparatus <NUM> to complete the above-mentioned Hybrid Automatic Repeat reQuest HARQ feedback method. For example, the non-transitory computer-readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk and an optical data storage device and the like.

As for the apparatus embodiments, because they basically correspond to the method embodiments, the relevant parts may refer to the descriptions of the method embodiments. The apparatus embodiments described above are only schematic, and the units described as separate components may or may not be physically separated, the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed in multiple network units. A part or all of the modules may be selected according actual needs to achieve objectives of the solutions of these embodiments. Those of ordinary skill in the art may understand and implement without creative efforts.

Claim 1:
A hybrid automatic repeat request ,HARQ, feedback indication method, performed by a base station, the method comprising:
sending (S201) signaling for triggering dynamic HARQ feedback to a terminal; wherein the signaling for triggering dynamic HARQ feedback comprises radio resource control, RRC, signaling or media access control, MAC, control element, CE;
adding (S202) a timing relationship between a time domain unit where current downlink data is located and a time domain unit for an uplink HARQ feedback of the current downlink data in control information; and
sending (S203) the current downlink data and the control information added with the timing relationship to the terminal;
wherein the control information is downlink control information ,DCI, (S202, S203), the timing relationship is configured in an information domain of the DCI, the information domain is configured at a fixed location or a configurable location in the DCI, and a length of the information domain is fixed or configurable.