CN115997368A

CN115997368A - Hybrid automatic repeat feedback method, device and storage medium

Info

Publication number: CN115997368A
Application number: CN202280005104.4A
Authority: CN
Inventors: 刘敏
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-04-21

Abstract

The disclosure relates to a method, a device and a storage medium for feedback of hybrid automatic retransmission, comprising: receiving Downlink Control Information (DCI), wherein the DCI comprises side control information; and according to the DCI, determining to perform hybrid automatic repeat request (HARQ) feedback to the network equipment, wherein the HARQ feedback represents the HARQ feedback to the DCI. And the DCI is used for carrying out HARQ feedback indication on the DCI comprising the side control information, so that different signaling can support different feedback modes. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

Description

Hybrid automatic repeat feedback method, device and storage medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a hybrid automatic retransmission feedback method, a device and a storage medium.

Background

Currently, network control repeaters (network controlled repeater, NCR) can improve system coverage in a low cost manner. The NCR may include two parts, namely a mobile terminal (mobile termination, MT) part and a forwarding (Fwd) part, among others. Wherein the MT part can be used to receive control commands sent by the base station. The control commands may be used to control the behavior of the Fwd portion, such as beam pointing direction, turning on and off of forwarding, etc.

The NCR may receive radio resource control (radio resource control, RRC) signaling, medium access control element (medium access control control element, MAC CE) signaling, and dynamic downlink control information (downlink control information, DCI) signaling from the base station. Among them, RRC signaling and MAC CE signaling are generally transmitted in a physical downlink shared channel (physical downlink shared channel, PDSCH). And the third generation partnership project (3rd generation partnership project,3GPP) also allows feedback for hybrid automatic repeat request (hybrid automatic repeat-request, HARQ) for PDSCH. Wherein the feedback of HARQ includes Acknowledgement (ACK) feedback and/or negative acknowledgement (negative acknowledgement, NACK) feedback.

However, how to feed back the DCI or the physical downlink control channel (physical downlink control channel, PDCCH) carrying the side control information (side control information) is not related to the present, and therefore how to feed back the DCI or the PDCCH carrying the side control information is a problem to be solved.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a hybrid automatic retransmission feedback method, apparatus, and storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided a hybrid automatic retransmission feedback method, which is performed by a relay device, including: receiving Downlink Control Information (DCI) sent by network equipment, wherein the DCI comprises side control information; and determining whether to perform hybrid automatic repeat request (HARQ) feedback to the network equipment according to the DCI, wherein the HARQ feedback indicates that the HARQ feedback is performed on the DCI.

In one embodiment, the DCI further includes a HARQ feedback indication field; determining whether to perform hybrid automatic repeat request (HARQ) feedback to the network equipment according to the DCI comprises the following steps: and determining whether to perform HARQ feedback to the network equipment according to the HARQ feedback indication field.

In one embodiment, determining whether to perform HARQ feedback to the network device according to the HARQ feedback indication field comprises: and the HARQ feedback indication field is a first numerical value, and HARQ feedback is carried out on the DCI according to the first numerical value.

In one embodiment, determining whether to perform HARQ feedback to the network device according to the HARQ feedback indication field comprises: and the HARQ feedback indication field is a second value, and the HARQ feedback is not performed on the DCI according to the second value.

In one embodiment, the HARQ feedback includes any one of: hybrid automatic repeat request, HARQ-ACK; hybrid automatic repeat-request, HARQ-NACK.

In one embodiment, the HARQ feedback indication field is a dedicated information bit that is used only to indicate whether to perform HARQ feedback.

In one embodiment, the HARQ feedback indication field is a multiplexing information field for jointly indicating whether to perform HARQ feedback and for indicating other information that is different from HARQ feedback. In one embodiment, the method further comprises: and receiving a Radio Resource Control (RRC) signaling sent by the network equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is performed or not.

In one embodiment, at least one of the following information is determined based on predefined rules: time of HARQ feedback; time-frequency domain resources fed back by HARQ; the transmit power of the HARQ feedback.

In one embodiment, the method further comprises: and sending first information to the network equipment, wherein the first information is HARQ feedback.

In one embodiment, the method further comprises: and sending second information to the network equipment, wherein the second information is used for jointly indicating the HARQ feedback and/or indicating other HARQ feedback different from the HARQ feedback.

In one embodiment, the priority of the HARQ feedback is higher than the priority of the other HARQ feedback.

In one embodiment, the method further comprises: receiving resource indication information sent by network equipment, wherein the resource indication information is used for indicating Physical Uplink Control Channel (PUCCH) resources for the relay equipment to send second information; determining PUCCH resources according to the resource indication information; transmitting second information to the network device, comprising: and sending second information to the network equipment based on the PUCCH resource.

According to a second aspect of embodiments of the present disclosure, there is provided a hybrid automatic retransmission feedback method, performed by a network device, comprising: and sending Downlink Control Information (DCI) to the relay equipment, wherein the DCI comprises side control information (side control information) and is used for indicating the relay equipment to determine whether to perform hybrid automatic repeat request (HARQ) feedback to the network equipment, and the HARQ feedback indicates that the DCI is subjected to HARQ feedback.

In one embodiment, the DCI further includes a HARQ feedback indication field for indicating whether to perform HARQ feedback to the network device.

In one embodiment, the HARQ feedback indication field is a first value, the first value representing HARQ feedback for DCI.

In one embodiment, the HARQ feedback indication field is a second value, the second value indicating that no HARQ feedback is performed on the DCI.

In one embodiment, the HARQ feedback indication field is a multiplexing information field for jointly indicating whether to perform HARQ feedback and for indicating other information that is different from HARQ feedback.

In an embodiment, the DCI further includes a HARQ feedback indication field, and the method further includes: and sending a Radio Resource Control (RRC) signaling to the relay equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is carried out or not.

In one embodiment, the method further comprises: and receiving first information sent by the relay equipment, wherein the first information is HARQ feedback.

In one embodiment, the method further comprises: and receiving second information sent by the relay device, wherein the second information is used for jointly indicating the HARQ feedback and/or indicating other HARQ feedback different from the HARQ feedback.

In one embodiment, the method further comprises: transmitting resource indication information to the relay device, wherein the resource indication information is used for indicating Physical Uplink Control Channel (PUCCH) resources for the relay device to transmit second information; receiving second information sent by the relay device, including: the receiving relay device transmits the second information based on the PUCCH resource.

According to a third aspect of embodiments of the present disclosure, there is provided a hybrid automatic retransmission feedback device, the device comprising: a receiving module, configured to receive downlink control information DCI sent by a network device, where the DCI includes side control information; and the processing module is used for determining whether to perform hybrid automatic repeat request (HARQ) feedback to the network equipment according to the DCI, wherein the HARQ feedback indicates that the HARQ feedback is performed on the DCI.

In one embodiment, the DCI further includes a HARQ feedback indication field; the processing module is further configured to determine whether to perform HARQ feedback to the network device according to the HARQ feedback indication field.

In one embodiment, the processing module is further configured to: and the HARQ feedback indication field is a first numerical value, and HARQ feedback is carried out on the DCI according to the first numerical value.

In one embodiment, the processing module is further configured to: and the HARQ feedback indication field is a second value, and the HARQ feedback is not performed on the DCI according to the second value.

In one embodiment, the receiving module is further configured to: and receiving a Radio Resource Control (RRC) signaling sent by the network equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is performed or not.

In one embodiment, the apparatus further comprises: and the sending module is used for sending first information to the network equipment, wherein the first information is HARQ feedback.

In one embodiment, the apparatus further comprises: and a sending module, configured to send second information to the network device, where the second information is used to jointly indicate HARQ feedback, and/or is used to indicate other HARQ feedback different from HARQ feedback.

In an embodiment, the receiving module is further configured to receive resource indication information sent by the network device, where the resource indication information is used to indicate a physical uplink control channel PUCCH resource for the relay device to send the second information; the processing module is also used for determining PUCCH resources according to the resource indication information; the sending module is further configured to send second information to the network device based on the PUCCH resource.

According to a fourth aspect of embodiments of the present disclosure, there is provided a hybrid automatic retransmission feedback device, the device comprising: a sending module, configured to send downlink control information DCI to a relay device, where the DCI includes side control information, and the DCI is configured to instruct the relay device to determine whether to perform hybrid automatic repeat request HARQ feedback to a network device, where the HARQ feedback indicates that HARQ feedback is performed on the DCI.

In one embodiment, the HARQ feedback indication field is a second value, the first value indicating that no HARQ feedback is performed on the DCI.

In an embodiment, the DCI further includes a HARQ feedback indication field, and the transmitting module is further configured to: and sending a Radio Resource Control (RRC) signaling to the relay equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is carried out or not.

In one embodiment, the apparatus further comprises: and the receiving module is used for receiving the first information sent by the relay equipment, wherein the first information is HARQ feedback.

In one embodiment, the apparatus further comprises: and the receiving module is used for receiving second information sent by the relay equipment, wherein the second information is used for jointly indicating the HARQ feedback and/or indicating other HARQ feedback different from the HARQ feedback.

In an embodiment, the sending module is further configured to send resource indication information to the relay device, where the resource indication information is used to indicate a physical uplink control channel PUCCH resource for the relay device to send the second information; the receiving module is further configured to receive, based on the PUCCH resource, the second information from the relay device.

According to a fifth aspect of embodiments of the present disclosure, there is provided a communication apparatus comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: performing any of the methods of the first aspect.

According to a sixth aspect of embodiments of the present disclosure, there is provided a communication apparatus comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: any of the methods of the second aspect is performed.

According to a seventh aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a relay device, enables the relay device to perform any one of the methods of the first aspect.

According to an eighth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium, which when executed by a processor of a network device, causes the network device to perform any one of the methods of the second aspect.

According to a ninth aspect of embodiments of the present disclosure, there is provided a communication system, including a relay device and a network device, wherein the relay device is configured to perform any one of the methods of the first aspect; the network device is configured to perform any of the methods of the second aspect.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: and the DCI is used for carrying out HARQ feedback indication on the DCI comprising the side control information, so that different signaling can support different feedback modes. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of a wireless communication system, according to an example embodiment.

Fig. 2 is a schematic diagram of a communication scenario, which is illustrated in accordance with an exemplary embodiment.

Fig. 3 is a flow chart illustrating a hybrid automatic retransmission feedback method according to an exemplary embodiment.

Fig. 4 is a flow chart illustrating another hybrid automatic retransmission feedback method according to an exemplary embodiment.

Fig. 5 is a flow chart illustrating yet another hybrid automatic retransmission feedback method according to an exemplary embodiment.

Fig. 6 is a flow chart illustrating yet another hybrid automatic retransmission feedback method according to an exemplary embodiment.

Fig. 7 is a flow chart illustrating another hybrid automatic retransmission feedback method according to an exemplary embodiment.

Fig. 8 is a flow chart illustrating yet another hybrid automatic retransmission feedback method according to an exemplary embodiment.

Fig. 9 is a signaling interaction diagram illustrating a hybrid automatic retransmission feedback according to an example embodiment.

Fig. 10 is a schematic diagram of a hybrid automatic retransmission feedback device according to an exemplary embodiment.

Fig. 11 is a schematic diagram illustrating another hybrid automatic retransmission feedback device according to an example embodiment.

Fig. 12 is a schematic diagram of a communication device, according to an example embodiment.

Fig. 13 is a schematic diagram of another communication device, shown according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure.

The communication method according to the present disclosure may be applied to the wireless communication system 100 shown in fig. 1. The network system may include a network device 110, a relay device 120, and a terminal 130. It will be appreciated that the wireless communication system shown in fig. 1 is only schematically illustrated, and that other network devices may be included in the wireless communication system, for example, a core network device, a wireless relay device, a wireless backhaul device, etc., which are not shown in fig. 1. The embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in the wireless communication system.

It is further understood that the wireless communication system of the embodiments of the present disclosure is a network that provides wireless communication functionality. The wireless communication system may employ different communication techniques such as code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division multiple access (time division multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (single carrier frequency division multiple access, SC-FDMA), carrier sense multiple access/collision avoidance (carrier sense multiple access with collision avoidance). Networks may be classified into 2G (english: generation) networks, 3G networks, 4G networks, or future evolution networks, such as fifth generation wireless communication system (the 5th generation wireless communication system,5G) networks, and 5G networks may also be referred to as NRs, depending on factors such as capacity, rate, delay, etc. of the different networks. For convenience of description, the present disclosure will sometimes refer to a wireless communication network simply as a network.

Further, the network device 110 referred to in this disclosure may also be referred to as a radio access network device. The radio access network device may be: a base station, an evolved node b (eNB), a home base station, an Access Point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless backhaul node, a transmission point (transmission point, TP), or a transmission reception point (transmission and receiving point, TRP), etc., may also be a gNB in an NR system, or may also be a component or a part of a device that forms a base station, etc. In the case of a vehicle networking (V2X) communication system, the network device may also be an in-vehicle device. It should be understood that in the embodiments of the present disclosure, the specific technology and specific device configuration adopted by the network device are not limited.

Further, the relay device 120 referred to in the present disclosure may be a wireless relay node.

The terminal 130 referred to in the present disclosure may also be referred to as a terminal device, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. May be a device that provides voice and/or data connectivity to a user, e.g., the terminal may be a handheld device, an in-vehicle device, etc. with wireless connectivity. Currently, some examples of terminals are: a smart phone (mobile phone), a pocket computer (pocket personal computer, PPC), a palm top computer, a personal digital assistant (personal digital assistant, PDA), a notebook computer, a tablet computer, a wearable device, or an in-vehicle device, etc. In addition, in the case of a vehicle networking (V2X) communication system, the terminal device may also be an in-vehicle device. It should be understood that the embodiments of the present disclosure are not limited to the specific technology and specific device configuration adopted by the terminal.

In the embodiment of the present disclosure, the network device 110, the relay device 120 and the terminal 130 may use any feasible wireless communication technology to implement mutual data transmission. The transmission channel corresponding to the network device 110 sending data to the relay device 120 is called a Downlink (DL), and the transmission channel corresponding to the relay device 120 sending data to the terminal 130 may also be called DL. The transmission channel corresponding to the terminal 130 sending data to the relay device 120 is called an Uplink (UL), and the transmission channel corresponding to the relay device 120 sending data to the network device 110 may also be called an UL. It is to be appreciated that the network devices involved in embodiments of the present disclosure may be base stations. Of course, the network device may be any other possible network device, and the terminal may be any possible terminal, which is not limited by the present disclosure.

Currently, NCR can improve system coverage in a low cost manner. Wherein the NCR may comprise two parts, namely an MT part and an Fwd part. As shown in the schematic diagram of the communication scenario in fig. 2, it can be seen that in the communication scenario 200, the MT part 221 in the NCR 220 may receive a control command sent by the base station 210 through a control link (control link). Wherein the control commands may be used to control the behavior of Fwd portion 222. Such as the behaviour on the backhaul link and the access link. Such as beam pointing direction, turn ON (ON) and turn OFF (OFF) of the forwarding, etc. NCR 220 may forward data sent by base station 210 to terminal 230 based on the behavior of Fwd portion 222.

In some examples, the MT portion of the NCR represents that the NCR can also be considered a simple version of the terminal. Or the terminal can receive the command sent by the network equipment and perform corresponding operation. For example, receives a control command and controls some forwarding behavior when itself acts as a relay, i.e., controls some behavior of the Fwd portion, based on the control command. .

The NCR may receive RRC signaling, MAC CE signaling, and dynamic DCI signaling from the base station. Among them, RRC signaling and MAC CE signaling are generally transmitted in PDSCH. While 3GPP also allows feedback for HARQ for PDSCH. Therefore, the correct receiving of the signaling is ensured, and the robustness is enhanced. Wherein the feedback of HARQ may comprise ACK and/or NACK. However, how feedback is performed on DCI or PDCCH carrying side control information is not yet agreed.

In the related art, HARQ feedback also exists for some special DCI of the UE. For example, the UE needs to feedback for DCI for semi-persistent scheduling (semi-persistent scheduling, SPS) release (release).

And whether the PDCCH needs to perform HARQ feedback or not, and specific analysis is needed for different signaling. Such as PDCCH without scheduled PDSCH, such as signaling carrying SPS deactivation (deactivation); for another example, signaling with low latency requirements, such as signaling carrying SPS deactivation; for another example, highly reliable signaling is required, such as bearer uniform (integrated) transport configuration indication (transmission configuration indication, TCI) indication (indication).

Meanwhile, the side control information may include information such as ON-OFF information, power control (power control) information, time division duplex (time division duplex, TDD) information, and the like, in addition to information for beam adjustment. Some of the information, such as ON-OFF information, will affect the subsequent relay forwarding behavior without too high a latency requirement.

Thus, there is a need for a method that can support different feedback characteristics for different signaling. The problem to be solved is how to feed back DCI or PDCCH including side control information.

The method and the device have the advantages that the indication of HARQ feedback is carried out on the DCI comprising the side control information through the DCI, so that different signaling can support different feedback modes. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

Fig. 3 is a flow chart illustrating a hybrid automatic retransmission feedback method according to an exemplary embodiment, as shown in fig. 3, performed by a relay device. Wherein the relay device may be the above-mentioned NCR, the method may comprise the steps of:

in step S11, downlink control information DCI transmitted by the network device is received.

In some embodiments, the relay device may receive DCI transmitted by the network device. Wherein the DCI includes side control information, and the DCI is transmitted on a PDCCH.

For example, the relay device may receive DCI including side control information transmitted by the network device.

In step S12, it is determined whether to perform hybrid automatic repeat request HARQ feedback to the network device according to the DCI.

In some embodiments, the relay device may determine whether to perform HARQ feedback to the network device according to the DCI received in S11. Wherein, the HARQ feedback indicates that the relay device performs HARQ feedback on DCI including side control information.

Whether to perform HARQ feedback to the network device may include performing HARQ feedback and not performing HARQ feedback.

It can be understood that since DCI is transmitted on PDCCH, HARQ feedback is performed on DCI, and may be considered as HARQ feedback performed on PDCCH on which the DCI is transmitted.

In the hybrid automatic repeat feedback method provided by the embodiment of the disclosure, DCI includes an HARQ feedback indication field; determining whether to perform hybrid automatic repeat request (HARQ) feedback to the network device according to the DCI may include: and determining whether to perform HARQ feedback to the network equipment according to the HARQ feedback indication field.

In some embodiments, the relay device may include a HARQ feedback indication field in DCI including side control information sent by the network device. The HARQ feedback indication field is configured to indicate whether the relay device performs HARQ feedback to the network device. The relay device may determine whether to perform HARQ feedback to the network device according to the HARQ feedback indication field.

For example, the HARQ feedback indication field may instruct the relay device to perform HARQ feedback on DCI including side control information to the network device. Alternatively, the HARQ feedback indication field may indicate that the relay device does not perform HARQ feedback on DCI including side control information to the network device.

For example, the HARQ feedback may include HARQ-ACK or HARQ-NACK.

The method and the device indicate whether the HARQ feedback is carried out on the DCI comprising the side control information or not through the HARQ feedback indication field in the DCI, so that different signaling can support different feedback modes. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat request feedback method provided in the embodiment of the present disclosure, determining whether to perform HARQ feedback to a network device according to an HARQ feedback indication field includes: and the HARQ feedback indication field is a first numerical value, and HARQ feedback is carried out on the DCI according to the first numerical value.

In some embodiments, the HARQ feedback indication field may be a first value, in which case the first value of the HARQ feedback indication field may represent HARQ feedback for DCI including side control information.

For example, the HARQ feedback indication field is a first value, and the relay device performs HARQ-ACK feedback on DCI including the side control information according to the first value.

For another example, the HARQ feedback indication field is a first value, and the relay device performs HARQ-NACK feedback on the DCI including the side control information according to the first value.

It can be appreciated that if the DCI including the side control information does not have high time delay requirement, HARQ feedback may be performed on the DCI including the side control information.

The method and the device perform HARQ feedback by indicating DCI comprising side control information through the HARQ feedback indication domain as a first value, so that different signaling can support different feedback modes. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat request feedback method provided in the embodiment of the present disclosure, determining whether to perform HARQ feedback to a network device according to an HARQ feedback indication field includes: and the HARQ feedback indication field is a second value, and the HARQ feedback is not performed on the DCI comprising the side control information according to the second value.

In some embodiments, the HARQ feedback indication field may be a second value, in which case the second value of the HARQ feedback indication field may indicate that no HARQ feedback is performed on the DCI including the side control information.

For example, the HARQ feedback indication field is a second value, and the relay device does not perform HARQ-ACK feedback on the DCI including the side control information according to the second value.

For another example, the HARQ feedback indication field is a second value, and the relay device does not perform HARQ-NACK feedback on the DCI including the side control information according to the second value.

It can be appreciated that if the DCI including the side control information has a high time delay requirement, HARQ feedback may not be performed on the DCI including the side control information.

The method and the device indicate that the DCI comprising the side control information does not perform HARQ feedback through the HARQ feedback indication domain to be a second value, so that different signaling can support different feedback modes. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat request feedback method provided by the embodiment of the present disclosure, HARQ feedback includes any one of the following: hybrid automatic repeat request, HARQ-ACK; hybrid automatic repeat-request, HARQ-NACK.

In some embodiments, the HARQ feedback may be a hybrid automatic repeat acknowledgement, HARQ-ACK.

For example, when the relay device correctly demodulates the side control information, the HARQ-ACK may be transmitted to the network device.

In some embodiments, the HARQ feedback may be a hybrid automatic repeat negative acknowledgement, HARQ-NACK.

For example, when the relay device does not properly demodulate the side control information, HARQ-NACK may be transmitted to the network device.

The present disclosure may support feedback information for multiple HARQ to accommodate multiple communication scenarios. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat request feedback method provided by the embodiment of the disclosure, the HARQ feedback indication field is a dedicated information bit, and the dedicated information bit is only used for indicating whether to perform HARQ feedback.

In some embodiments, the HARQ feedback indication field may be a dedicated information bit that may be used only to indicate whether to HARQ feedback for DCI including side control information.

For example, a dedicated information bit, such as a HARQ feedback enable (enable)/disable (disable) information bit, may be newly added to the DCI.

For example, when the HARQ feedback enable/disable information bit is the first value, it may be indicated as enable, that is, indicates that the relay device needs to perform HARQ feedback on the DCI including the side control information. It may also be understood that the relay device is instructed to perform HARQ feedback on the PDCCH transmitting DCI including side control information. For example, it may be to transmit a HARQ-ACK or to transmit a HARQ-NACK.

As another example, when the HARQ feedback enable/disable information bit is the second value, it may be indicated as disable, that is, indicate that the relay device does not need to perform HARQ feedback on the DCI including the side control information. It may also be understood that the relay device is instructed not to need HARQ feedback for the PDCCH transmitting DCI including side control information. For example, HARQ-ACK and HARQ-NACK may not be transmitted.

For example, the HARQ feedback enable/disable information bit may be a 1 bit (bit) information bit, the first value may be 1, and the second value may be 0. Alternatively, the first value may be 0 and the second value may be 1. The present disclosure is not limited to specific values of the first and second data.

The method and the device enable different signaling to support different feedback modes by adding the special information bit special for indicating whether the HARQ feedback is carried out on the DCI comprising the side control information in the DCI. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat request feedback method provided by the embodiment of the disclosure, the HARQ feedback indication field is a multiplexing information field, and the multiplexing information field is used for jointly indicating whether to perform HARQ feedback or not and for indicating other information different from HARQ feedback.

In some embodiments, the HARQ feedback indication field may be a multiplexing information field, i.e. an information field existing in DCI. And this information field has been used to indicate other information than the HARQ feedback described above. That is, the HARQ feedback indication field may multiplex an information field existing in the DCI as a multiplexed information field. So that the multiplexing information field may be used to jointly indicate whether or not to perform HARQ feedback on DCI including side control information, and to indicate feedback other than any of the other information of the HARQ feedback described above.

For example, the HARQ feedback indication field may multiplex a HARQ process (process) identity (identity document, ID) as the indication of the multiplexing information field.

For example, when the HARQ process ID is the first value, the relay device may be instructed to perform HARQ feedback on DCI including side control information. It may also be understood that the relay device is instructed to perform HARQ feedback on the PDCCH transmitting DCI including side control information. For example, HARQ-ACK or HARQ-NACK may be transmitted.

As another example, when the HARQ process ID is the second value, the relay device may be instructed not to perform HARQ feedback on DCI including the side control information. It may also be understood that the relay device is instructed not to need HARQ feedback for the PDCCH transmitting DCI including side control information. For example, HARQ-ACK and HARQ-NACK may not be transmitted.

For example, the HARQ process ID may be 0 for a first value and non-0 for a second value. Alternatively, the first value may be any value and the second value may be a different value than the first value. The present disclosure is not limited to specific values of the first and second data.

In some embodiments, the HARQ feedback indication field may be a re-translation of any existing information field in the DCI and serve as a multiplexed information field. For joint indication of whether HARQ feedback is performed or not, and other information than HARQ feedback.

The multiplexing information field may indicate whether to perform HARQ feedback and other information different from HARQ feedback at the same time. For example, the highest bit in the modulation and coding scheme (modulation and coding scheme, MCS) field is used to indicate whether HARQ feedback is performed, and the remaining bits are used to indicate the modulation and coding scheme.

As another example, the multiplexing information field may also indicate whether HARQ feedback is performed or other information different from HARQ feedback in different situations. For example, in a specific case, for example, in a specific radio network temporary identifier (radio network temporary identity, RNTI) scrambling scheme 1, whether or not HARQ feedback is performed is indicated, and in a specific RNTI scrambling scheme 2, other information than HARQ feedback is indicated.

The present disclosure enables different signaling to support different feedback modes by multiplexing an existing information field in DCI to indicate whether to perform HARQ feedback on DCI including side control information. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic retransmission feedback method provided in the embodiments of the present disclosure, fig. 4 is a flowchart of another hybrid automatic retransmission feedback method according to an exemplary embodiment. As shown in fig. 4, the method may further comprise the steps of:

In step S21, radio resource control RRC signaling sent by the network device is received.

In some embodiments, the relay device may receive RRC signaling sent by the network device. The RRC signaling may be used to indicate the correspondence of the value in the HARQ feedback indication field to whether to perform HARQ feedback.

For example, when the HARQ feedback indication field is a dedicated information bit, RRC signaling may be used to indicate a correspondence between the first value and/or the second value in the dedicated information bit and whether to perform HARQ feedback. Indicating at least one of the following correspondence: the first value indicates that HARQ-ACK or HARQ-NACK is sent; the first value indicates that HARQ-ACK and HARQ-NACK are not transmitted; the second value indicates that HARQ-ACK or HARQ-NACK is transmitted; the second value indicates that HARQ-ACK and HARQ-NACK are not transmitted.

For another example, when the HARQ feedback indication field is a multiplexing information field, RRC signaling may be used to indicate a correspondence between the first value and/or the second value in the multiplexing information field and whether to perform HARQ feedback. Indicating at least one of the following correspondence: the first value indicates that HARQ-ACK or HARQ-NACK is sent; the first value indicates that HARQ-ACK and HARQ-NACK are not transmitted; the second value indicates that HARQ-ACK or HARQ-NACK is transmitted; the second value indicates that HARQ-ACK and HARQ-NACK are not transmitted.

The method and the device can indicate the corresponding relation between the numerical value in the HARQ feedback indication domain and whether to perform HARQ feedback or not through RRC, so that different signaling can support different feedback modes through the fact that whether to perform HARQ feedback on DCI comprising side control information or not is indicated by the numerical value in the HARQ feedback indication domain. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic retransmission feedback method provided by the embodiment of the disclosure, at least one of the following information is determined based on a predefined rule: time of HARQ feedback; time-frequency domain resources fed back by HARQ; the transmit power of the HARQ feedback.

Wherein, in some embodiments, in order to reduce the overhead related to the HARQ indication, at least one of the time of the HARQ feedback, the time-frequency domain resource of the HARQ feedback, and the transmission power of the HARQ feedback may be determined by a predefined and/or preconfigured manner.

In some embodiments, the time of HARQ feedback may be determined by a predefined manner. For example, it may be assumed that a slot (slot) in which the relay device receives the DCI in the PDCCH is slot #0, and then the 4 th slot after slot #0 of the relay device may be predefined for HARQ feedback of the DCI. Obviously, in this case, the DCI may not need to include the time interval indication, for example, a time interval indication like K1.

In some embodiments, the time-frequency domain resources of the HARQ feedback may be configured in a preconfigured manner. It may be appreciated that the time-frequency domain resources include time domain resources, which may be symbols (symbols), for example, and frequency domain resources, which may be subcarriers, for example. For example, a set of physical uplink control channel (physical uplink control channel, PUCCH) resources may be preconfigured by RRC signaling. It is understood that at least one PUCCH resource is included in the set of PUCCH resources. When the relay device needs to perform HARQ feedback for DCI transmitted in the PDCCH, one PUCCH resource may be selected from the set of PUCCH resources to perform HARQ feedback. Obviously, in this case, the PUCCH resource (resource) indicator need not be included in the DCI.

For example, when one PUCCH resource is included in a set of pre-configured PUCCH resources, the relay device may select the PUCCH resource for HARQ feedback. For another example, when a plurality of PUCCH resources are included in a set of PUCCH resources configured in advance, the relay device may select any one of the PUCCH resources in the set of PUCCH resources for HARQ feedback. The disclosure is not limited, and any PUCCH resource from the set of PUCCH resources may be selected according to a predetermined rule or according to a rule specified in a protocol.

In some embodiments, the transmit power of the HARQ feedback may be determined by a predefined manner. For example, PUCCH power control.

Of course, any one of the time of the HARQ feedback, the time-frequency domain resource of the HARQ feedback, and the transmission power of the HARQ feedback may be determined by a predefined and/or preconfigured manner; or determining the time of HARQ feedback and the time-frequency domain resource of the HARQ feedback; or determining the time of the HARQ feedback and the transmission power of the HARQ feedback; or determining the time-frequency domain resource of the HARQ feedback and the transmission power of the HARQ feedback; or determining the time of the HARQ feedback, the time-frequency domain resource of the HARQ feedback and the transmission power of the HARQ feedback.

According to the HARQ feedback method and device, the related parameters of the multiple parameter HARQ indications are configured in advance, so that the related expenditure of the HARQ indications is reduced, resources are saved, and the HARQ feedback efficiency is improved.

In the hybrid automatic repeat feedback method provided by the embodiment of the present disclosure, the method further includes: and sending first information to the network equipment, wherein the first information is HARQ feedback.

In some embodiments, the relay device may send the first information to the network device. Wherein the first information is used to describe HARQ feedback for DCI including side control information. It can be appreciated that the first information is the HARQ feedback described above

For example, the relay device may send the first information to the network device. The first information may be HARQ bits. The HARQ bit may describe only HARQ feedback for DCI including side control information, that is, the HARQ bit is not multiplexed with other HARQ feedback. Wherein the HARQ bit may represent HARQ-ACK or HARQ-NACK.

It can be appreciated that the relay device does not want to have other HARQ feedback bits that need feedback within a slot where HARQ feedback is performed on DCI including side control information (or PDCCH transmitting DCI including side control information). Therefore, in the case that there are other HARQ feedback bits that need to be fed back in the slot where HARQ feedback is performed on DCI including side control information (or HARQ feedback is performed on PDCCH transmitting DCI including side control information), the relay device may discard other HARQ feedback bits that need to be fed back. So that the HARQ feedback information includes only HARQ feedback describing DCI including side control information.

The present disclosure enables different signaling to support different feedback modes by transmitting HARQ feedback information to the network device that describes only HARQ feedback for DCI including side control information. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat feedback method provided by the embodiment of the present disclosure, the method further includes: and sending second information to the network equipment, wherein the second information is used for jointly indicating the HARQ feedback and/or indicating other HARQ feedback different from the HARQ feedback.

In some embodiments, the relay device may send the second information to the network device. Wherein the second information is used for jointly indicating HARQ feedback. And/or the second information is also used to indicate any other HARQ feedback than HARQ feedback. That is, the second information may be information that the HARQ feedback is multiplexed with any other HARQ feedback.

For example, the relay device may send the second information to the network device. The second information may be HARQ bits. The HARQ bit may be used to describe HARQ feedback for both DCI including side control information and other HARQ feedback different from HARQ feedback for DCI including side control information. Wherein the HARQ bit may represent HARQ-ACK feedback or HARQ-NACK.

The method and the device enable different signaling to support different feedback modes by sending the HARQ feedback information multiplexed with other HARQ feedback to the network equipment. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat request feedback method provided by the embodiment of the disclosure, the priority of the HARQ feedback is higher than the priority of other HARQ feedback.

In some embodiments, where the HARQ feedback described above may be multiplexed with other HARQ feedback, the priority of the HARQ feedback is higher than the priority of the other HARQ feedback. That is, the priority of HARQ feedback of DCI including side control information may be set higher than the priority of other HARQ feedback.

For example, when the PUCCH resource is only enough to carry 2 bits of information, and the number of HARQ bits is 3, 1bit of information needs to be discarded. At this time, bit information with higher priority can be reserved preferentially by a priority mode. When the priority of the HARQ feedback of the DCI including the side control information is set to be higher than that of other HARQ feedback, the bits corresponding to the other HARQ feedback are discarded preferentially, and the bits corresponding to the HARQ feedback of the DCI including the side control information are reserved.

The method and the device can preferentially reserve the HARQ feedback of the DCI comprising the side control information by setting the HARQ feedback priority, so that different signaling can support different feedback modes under the condition that the PUCCH resource is insufficient. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic retransmission feedback method provided in the embodiments of the present disclosure, fig. 5 is a flowchart of yet another hybrid automatic retransmission feedback method according to an exemplary embodiment. As shown in fig. 5, the method may further include the steps of:

in step S31, the resource indication information transmitted by the network device is received.

In some embodiments, the relay device may receive the resource indication information sent by the network device. The resource indication information is used for indicating PUCCH resources for the relay device to send the second information.

For example, the relay device may receive one or more resource indication information sent by the network device.

In step S32, PUCCH resources are determined from the resource indication information.

In some embodiments, the relay device may determine PUCCH resources for transmitting the second information according to the one or more resource indication information received in S31.

For example, the PUCCH resource may be a PUCCH resource indicated by the resource indication information transmitted by the network device that is received last time before the slot for HARQ feedback. Of course, the PUCCH resource may also be a PUCCH resource indicated by the resource indication information sent by the network device received for any nth time before the time slot for performing HARQ feedback, which is not limited in the disclosure.

For example, in the case where HARQ feedback of DCI including side control information can be multiplexed with other HARQ feedback, the relay device receives resource indication information 1 at slot #1, indicating feedback of HARQ 1 on PUCCH resource #1 of slot # 9. The relay device may also receive resource indication information 2 at slot #3, indicating feedback of HARQ 2 on PUCCH resource #2 of slot # 9. The relay device may determine to perform HARQ feedback on PUCCH resource #2 of slot # 9.

In step S33, second information is transmitted to the network device based on the PUCCH resource.

In some embodiments, the relay device may send the second information to the network device on the PUCCH resource determined in S32.

For example, the relay device may feed back HARQ 1 and HARQ 2 together on PUCCH resource #2 of slot # 9. Wherein, one of HARQ 1 and HARQ 2 is HARQ feedback of DCI including side control information; the other is other HARQ feedback.

It is understood that the PUCCH resource for transmitting the second information may be determined according to the PUCCH resource indicated by the one scheduling closest to the secondary feedback slot.

The present disclosure provides a PUCCH resource determination manner of transmitting HARQ feedback information, so that in case that HARQ feedback of DCI including side control information can be multiplexed with other HARQ feedback, a corresponding PUCCH can be selected to transmit corresponding HARQ feedback information, so that different signaling can support different feedback manners. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

Based on the same conception, the disclosure also provides a hybrid automatic retransmission feedback method applied to the network equipment.

Fig. 6 is a flow chart of yet another hybrid automatic retransmission feedback method, as shown in fig. 6, performed by a network device, according to an exemplary embodiment. The method may comprise the steps of:

in step S41, downlink control information DCI is transmitted to the relay device.

In some embodiments, the network device may send DCI to the relay device. The DCI includes side control information, and is transmitted on the PDCCH, where the DCI is used to instruct the relay device to determine whether to perform HARQ feedback to the network device. HARQ feedback means HARQ feedback on DCI including side control information.

For example, the network device transmits DCI including side control information to the relay device. The DCI is used for the relay device to determine whether to perform HARQ feedback on the DCI including the side control information.

For example, whether to perform HARQ feedback to the network device may include performing HARQ feedback and not performing HARQ feedback.

In the hybrid automatic repeat request feedback method provided in the embodiment of the present disclosure, the DCI further includes an HARQ feedback indication field, where the HARQ feedback indication field is used to indicate whether to perform HARQ feedback to the network device.

In some embodiments, the DCI including the side control information sent by the network device may further include a HARQ feedback indication field. The HARQ feedback indication field is used to indicate whether the relay device performs HARQ feedback to the network device. For example, whether the relay device performs HARQ feedback on DCI including side control information to the network device.

For example, the HARQ feedback may be HARQ-ACK or HARQ-NACK.

According to the method and the device, whether the relay equipment performs HARQ feedback on the DCI comprising the side control information is indicated through the HARQ feedback indication field in the DCI, so that different signaling can support different feedback modes. And further, the correct receiving of the corresponding signaling is ensured, and the robustness of the communication system is improved.

In the hybrid automatic repeat request feedback method provided in the embodiment of the present disclosure, the HARQ feedback indication field is a first value, where the first value indicates that HARQ feedback is performed on DCI.

For example, the HARQ feedback indication field is a first value, which indicates that HARQ-ACK feedback is performed on DCI including side control information.

For another example, the HARQ feedback indication field is a first value, and the first value indicates that HARQ-NACK feedback is performed on DCI including side control information.

In the hybrid automatic repeat request feedback method provided in the embodiment of the present disclosure, the HARQ feedback indication field is a second value, where the second value indicates that no HARQ feedback is performed on DCI including side control information.

For example, the HARQ feedback indication field is a second value, which indicates that no HARQ-ACK feedback is performed on DCI including side control information.

For another example, the HARQ feedback indication field is a second value, and the second value indicates that no HARQ-NACK feedback is performed on DCI including side control information.

For example, dedicated information bits, such as HARQ feedback enable/disable information bits, may be newly added to the DCI.

For example, the HARQ feedback enable/disable information bit may be a 1bit information bit, the first value may be 1, and the second value may be 0. Alternatively, the first value may be 0 and the second value may be 1. The present disclosure is not limited to specific values of the first and second data.

For example, the HARQ feedback indication field may multiplex the HARQ process ID as the multiplexing information field for indication.

The multiplexing information field may indicate whether to perform HARQ feedback and other information different from HARQ feedback at the same time. For example, the highest bit of the MCS field is used to indicate whether HARQ feedback is performed, and the remaining bits are used to indicate the modulation and coding scheme.

As another example, the multiplexing information field may also indicate whether HARQ feedback is performed or other information different from HARQ feedback in different situations. For example, in a specific case, for example, in a specific RNTI scrambling scheme 1, whether or not HARQ feedback is performed is indicated, and in a specific RNTI scrambling scheme 2, other information than HARQ feedback is indicated.

In the hybrid automatic retransmission feedback method provided in the embodiments of the present disclosure, fig. 7 is a flowchart of another hybrid automatic retransmission feedback method according to an exemplary embodiment. As shown in fig. 7, the DCI further includes a HARQ feedback indication field, and the method may further include the steps of:

in step S51, radio resource control RRC signaling is transmitted to the relay device.

In some embodiments, the network device may send RRC signaling to the relay device. The RRC signaling may be used to indicate the correspondence of the value in the HARQ feedback indication field to whether to perform HARQ feedback.

In some embodiments, the time of HARQ feedback may be determined by a predefined manner. For example, it may be assumed that slot of the DCI in the PDCCH received by the relay device is slot #0, and then HARQ feedback may be predefined for the DCI by the relay device in the 4 th slot after slot # 0. Obviously, in this case, the DCI may not need to include the time interval indication, for example, a time interval indication like K1.

In some embodiments, the time-frequency domain resources of the HARQ feedback may be configured in a preconfigured manner. It is understood that the time-frequency domain resources include time domain resources, such as symbol, and frequency domain resources, such as subcarriers. For example, a set of PUCCH resources may be preconfigured through RRC signaling. It is understood that at least one PUCCH resource is included in the set of PUCCH resources. When the relay device needs to perform HARQ feedback for DCI transmitted in the PDCCH, one PUCCH resource may be selected from the set of PUCCH resources to perform HARQ feedback. Obviously, in this case, PUCCH resource indicator need not be included in the DCI.

In the hybrid automatic repeat feedback method provided by the embodiment of the present disclosure, the method further includes: and receiving first information sent by the relay equipment, wherein the first information is HARQ feedback.

In some embodiments, the network device may receive the first information sent by the relay device. Wherein the first information is used to describe HARQ feedback for DCI including side control information.

For example, the network device may receive the first information sent by the relay device. The first information may be HARQ bits. The HARQ bit may describe only HARQ feedback for DCI including side control information, that is, the HARQ bit is not multiplexed with other HARQ feedback. Wherein the HARQ bit may represent HARQ-ACK or HARQ-NACK.

In the hybrid automatic repeat feedback method provided by the embodiment of the present disclosure, the method further includes: and receiving second information sent by the relay device, wherein the second information is used for jointly indicating the HARQ feedback and/or indicating other HARQ feedback different from the HARQ feedback.

In some embodiments, the network device may receive the second information sent by the relay device. Wherein the second information is used for jointly indicating HARQ feedback. And/or the second information is also used to indicate any other HARQ feedback than HARQ feedback. That is, the second information may be information that the HARQ feedback is multiplexed with any other HARQ feedback.

For example, the network device may receive the second information sent by the relay device. The second information may be HARQ bits. The HARQ bit may be used to describe HARQ feedback for both DCI including side control information and other HARQ feedback different from HARQ feedback for DCI including side control information. Wherein the HARQ bit may represent HARQ-ACK or HARQ-NACK.

In some embodiments, where HARQ feedback may be multiplexed with other HARQ feedback, the priority of HARQ feedback is higher than the priority of other HARQ feedback. That is, the priority of HARQ feedback of DCI including side control information may be set higher than the priority of other HARQ feedback.

In the hybrid automatic retransmission feedback method provided in the embodiments of the present disclosure, fig. 8 is a flowchart of yet another hybrid automatic retransmission feedback method according to an exemplary embodiment. As shown in fig. 8, the method may further include the steps of:

in step S61, the resource indication information is transmitted to the relay apparatus.

In some embodiments, the network device may send the resource indication information to the relay device. The resource indication information is used for indicating PUCCH resources for the relay device to send the second information.

In step S62, second information transmitted by the relay device is received based on the PUCCH resource.

In some embodiments, the network device may receive the second information transmitted by the relay device based on the PUCCH resource indicated by the resource indication information in S61.

For example, the network device may send one or more resource indication information to the relay device, and the network device may receive the second information sent by the relay device on the PUCCH resource indicated by the resource indication information sent last time. For another example, the network device receives the second information sent by the relay device on the PUCCH resource indicated by the optional nth transmission resource indication information, which is not limited in the present disclosure.

It should be understood by those skilled in the art that the various implementations/embodiments of the present disclosure may be used in combination with the foregoing embodiments or may be used independently. Whether used alone or in combination with the previous embodiments, the principles of implementation are similar. In the practice of the present disclosure, some of the examples are described in terms of implementations that are used together. Of course, those skilled in the art will appreciate that such illustration is not limiting of the disclosed embodiments.

As shown in fig. 9, a signaling interaction diagram between a network device, a relay device and a terminal is shown, and the signaling interaction procedure may include the following steps:

In step S71, the network device transmits DCI to the relay device.

In some embodiments, the network device transmits DCI including side control information to the relay device.

In step S72, the relay device adjusts the function of Fwd part of the relay device based on the side control information in the received DCI.

In some embodiments, after receiving the DCI including the side control information, the relay device may adjust the function of the Fwd portion accordingly based on the side control information in the DCI.

For example, based ON the forwarding ON-OFF information in the side control information, whether the relay device performs subsequent relay forwarding may be adjusted.

In step S73, the relay device determines whether to perform HARQ feedback to the network device according to the DCI.

In some embodiments, the relay device may determine to perform HARQ feedback to the network device according to the DCI, or not perform HARQ feedback. In case it is determined to perform HARQ feedback to the network device, the relay device may transmit the first information or the second information to the network device.

In step S74, the network device transmits the first communication data to the relay device.

In some embodiments, the network device may send the first communication data to the relay device after receiving the first information or the second information sent by the relay device. It may be understood that the first communication data is data that the network device performs communication interaction with the terminal, for example, may be random access information or a data packet, which is not limited in the disclosure.

In step S75, the relay device receives the first communication data sent by the network device, and forwards the first communication data to the terminal.

In some embodiments, the relay device may receive first communication data sent by the network device to the terminal and forward the first communication data to the terminal. It will be appreciated that the corresponding parameters in the FWd part of the forwarding by the relay device may be configured by the side control information.

In step S76, the terminal transmits the second communication data to the relay apparatus.

In some embodiments, after receiving the first communication data, the terminal may send the second communication data to the relay device. The second communication data may be considered a reply message to the first communication data.

In step S77, the relay device receives the second communication data sent by the terminal, and forwards the second communication data to the network device.

In some embodiments, the relay device may receive second communication data sent by the terminal to the network device and forward the second communication data to the network device.

It will be appreciated that the process described in fig. 9 may be implemented by referring to the schemes described in fig. 3 to 8, which are not described in detail in this disclosure.

Based on the same conception, the embodiment of the disclosure also provides a hybrid automatic retransmission feedback device and equipment.

It can be understood that, in order to implement the above functions, the hybrid automatic retransmission feedback device and the apparatus provided in the embodiments of the present disclosure include corresponding hardware structures and/or software modules that perform the respective functions. The disclosed embodiments may be implemented in hardware or a combination of hardware and computer software, in combination with the various example elements and algorithm steps disclosed in the embodiments of the disclosure. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure.

Fig. 10 is a schematic diagram of a hybrid automatic retransmission feedback device according to an exemplary embodiment. Referring to fig. 10, the apparatus 300 includes: a receiving module 301, configured to receive downlink control information DCI sent by a network device, where the DCI includes side control information; a processing module 302, configured to determine whether to perform hybrid automatic repeat HARQ feedback to the network device according to the DCI, where the HARQ feedback indicates that HARQ feedback is performed on the DCI.

In some embodiments, the DCI further includes a HARQ feedback indication field; the processing module is further configured to determine whether to perform HARQ feedback to the network device according to the HARQ feedback indication field.

In some embodiments, the processing module is further to: and the HARQ feedback indication field is a first numerical value, and HARQ feedback is carried out on the DCI according to the first numerical value.

In some embodiments, the processing module is further to: and the HARQ feedback indication field is a second value, and the HARQ feedback is not performed on the DCI according to the second value.

In some embodiments, the HARQ feedback comprises any of the following: hybrid automatic repeat request, HARQ-ACK; hybrid automatic repeat-request, HARQ-NACK.

In some embodiments, the HARQ feedback indication field is a dedicated information bit that is used only to indicate whether to perform HARQ feedback.

In some embodiments, the HARQ feedback indication field is a multiplexing information field for jointly indicating whether to perform HARQ feedback and for indicating other information that is different from HARQ feedback.

In some embodiments, the receiving module 301 is further configured to: and receiving a Radio Resource Control (RRC) signaling sent by the network equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is performed or not.

In some implementations, at least one of the following information is determined based on predefined rules: time of HARQ feedback; time-frequency domain resources fed back by HARQ; the transmit power of the HARQ feedback.

In some embodiments, the apparatus 300 further comprises: a sending module 303, configured to send first information to a network device, where the first information is HARQ feedback.

In some embodiments, the apparatus 300 further comprises: a sending module 303, configured to send second information to the network device in response, where the second information is used to jointly indicate HARQ feedback, and/or is used to indicate other HARQ feedback different from HARQ feedback.

In some embodiments, the priority of HARQ feedback is higher than the priority of other HARQ feedback.

In some embodiments, the receiving module 301 is further configured to receive resource indication information sent by the network device, where the resource indication information is used to instruct the relay device to send the physical uplink control channel PUCCH resource of the second information; the processing module 302 is further configured to determine PUCCH resources according to the resource indication information; the sending module 303 is further configured to send the second information to the network device based on the PUCCH resource.

Fig. 11 is a schematic diagram illustrating another hybrid automatic retransmission feedback device according to an example embodiment. Referring to fig. 11, the apparatus 400 includes: a sending module 401, configured to send downlink control information DCI to a relay device, where the DCI includes side control information, and the DCI is configured to instruct the relay device to determine whether to perform hybrid automatic repeat request (HARQ) feedback to a network device, where the HARQ feedback indicates that HARQ feedback is performed on the DCI.

In some embodiments, the DCI further includes a HARQ feedback indication field for indicating whether to perform HARQ feedback to the network device.

In some embodiments, the HARQ feedback indication field is a first value, the first value representing HARQ feedback for the DCI.

In some embodiments, the HARQ feedback indication field is a second value, the second value indicating that no HARQ feedback is performed on the DCI.

In some embodiments, the DCI further includes a HARQ feedback indication field, and the transmitting module is further configured to: and sending a Radio Resource Control (RRC) signaling to the relay equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is carried out or not.

In some embodiments, the apparatus 400 further comprises: the receiving module 402 is configured to receive first information sent by the relay device, where the first information is HARQ feedback.

In some embodiments, the apparatus 400 further comprises: a receiving module 402, configured to receive second information sent by the relay device, where the second information is used to jointly indicate HARQ feedback, and/or is used to indicate other HARQ feedback different from HARQ feedback.

In some embodiments, the sending module 401 is further configured to send resource indication information to the relay device, where the resource indication information is used to instruct the relay device to send the physical uplink control channel PUCCH resource of the second information; the receiving module 402 is further configured to receive, based on the PUCCH resource, the second information from the relay device.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 12 is a schematic diagram of a communication device, according to an example embodiment. For example, device 500 may be any terminal or relay device such as a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, and the like.

Referring to fig. 12, device 500 may include one or more of the following components: a processing component 502, a memory 504, a power component 506, a multimedia component 508, an audio component 510, an input/output (I/O) interface 512, a sensor component 514, and a communication component 516.

The processing component 502 generally controls overall operation of the device 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 502 may include one or more processors 520 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 502 can include one or more modules that facilitate interactions between the processing component 502 and other components. For example, the processing component 502 can include a multimedia module to facilitate interaction between the multimedia component 508 and the processing component 502.

Memory 504 is configured to store various types of data to support operations at device 500. Examples of such data include instructions for any application or method operating on device 500, contact data, phonebook data, messages, pictures, video, and the like. The memory 504 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power component 506 provides power to the various components of the device 500. Power component 506 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 500.

The multimedia component 508 includes a screen between the device 500 and the user that provides an output interface. 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 a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 508 includes a front-facing camera and/or a rear-facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 500 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 510 is configured to output and/or input audio signals. For example, the audio component 510 includes a Microphone (MIC) configured to receive external audio signals when the device 500 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 504 or transmitted via the communication component 516. In some embodiments, the audio component 510 further comprises a speaker for outputting audio signals.

The I/O interface 512 provides an interface between the processing component 502 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 514 includes one or more sensors for providing status assessment of various aspects of the device 500. For example, the sensor assembly 514 may detect the on/off state of the device 500, the relative positioning of the components, such as the display and keypad of the device 500, the sensor assembly 514 may also detect a change in position of the device 500 or a component of the device 500, the presence or absence of user contact with the device 500, the orientation or acceleration/deceleration of the device 500, and a change in temperature of the device 500. The sensor assembly 514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 514 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 516 is configured to facilitate communication between the device 500 and other devices, either wired or wireless. The device 500 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 516 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 an exemplary embodiment, the apparatus 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 504, including instructions executable by processor 520 of device 500 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

For example, the device 600 may be provided as a base station, or as a server. Referring to fig. 13, device 600 includes a processing component 622 that further includes one or more processors and memory resources represented by memory 632 for storing instructions, such as application programs, executable by processing component 622. The application programs stored in memory 632 may include one or more modules each corresponding to a set of instructions. Further, the processing component 622 is configured to execute instructions to perform the methods described above.

The device 600 may also include a power component 626 configured to perform power management of the device 600, a wired or wireless network interface 650 configured to connect the device 600 to a network, and an input output (I/O) interface 658. The device 600 may operate based on an operating system stored in memory 632, such as Windows Server, mac OS XTM, unixTM, linuxTM, freeBSDTM, or the like.

In one embodiment, such as shown in fig. 1, the present disclosure also provides a communication system including a relay device and a network device. Wherein the relay device is configured to perform any one of the methods described in fig. 3 to 5; the network device is configured to perform any of the methods described in fig. 6-8.

It is further understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the meaning of the terms "responsive to", "if", etc., referred to in this disclosure, depends on the context and actual usage scenario, as the term "responsive to" as used herein may be interpreted as "at … …" or "at … …" or "if".

It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A hybrid automatic retransmission feedback method, the method performed by a relay device, comprising:

receiving Downlink Control Information (DCI) sent by network equipment, wherein the DCI comprises side control information;

and determining whether to perform hybrid automatic repeat request (HARQ) feedback to the network equipment according to the DCI, wherein the HARQ feedback represents the HARQ feedback to the DCI.

2. The method of claim 1, wherein the DCI further comprises a HARQ feedback indication field;

determining whether to perform hybrid automatic repeat request (HARQ) feedback to the network equipment according to the DCI comprises the following steps:

and determining whether to perform the HARQ feedback to the network equipment according to the HARQ feedback indication field.

3. The method according to claim 2, wherein said determining whether to perform said HARQ feedback to said network device according to said HARQ feedback indication field comprises:

and the HARQ feedback indication field is a first numerical value, and HARQ feedback is carried out on the DCI according to the first numerical value.

4. The method according to claim 2, wherein said determining whether to perform hybrid automatic repeat HARQ feedback to the network device according to the HARQ feedback indication field comprises:

And the HARQ feedback indication field is a second value, and the HARQ feedback is not performed on the DCI according to the second value.

5. The method according to any of claims 2-4, wherein the HARQ feedback indication field is a dedicated information bit, which is only used to indicate whether or not to perform the HARQ feedback.

6. The method according to any of claims 2-4, wherein the HARQ feedback indication field is a multiplexing information field for jointly indicating whether the HARQ feedback is performed or not, and for indicating other information of which feedback is different from the HARQ feedback.

7. The method of claim 6, wherein the method further comprises:

and receiving a Radio Resource Control (RRC) signaling sent by the network equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is carried out.

8. The method according to any of claims 1-7, characterized in that at least one of the following information is determined based on predefined rules:

time of HARQ feedback;

time-frequency domain resources fed back by HARQ;

the transmit power of the HARQ feedback.

9. A method according to claim 3, characterized in that the method further comprises:

And sending first information to the network equipment, wherein the first information is the HARQ feedback.

10. A method according to claim 3, characterized in that the method further comprises:

and sending second information to the network equipment, wherein the second information is used for jointly indicating the HARQ feedback and/or indicating other HARQ feedback different from the HARQ feedback.

11. The method of claim 10, wherein the priority of the HARQ feedback is higher than the priority of the other HARQ feedback.

12. The method according to claim 10 or 11, characterized in that the method further comprises:

receiving resource indication information sent by the network equipment, wherein the resource indication information is used for indicating Physical Uplink Control Channel (PUCCH) resources of the relay equipment for sending the second information;

determining the PUCCH resource according to the resource indication information;

the sending the second information to the network device includes:

and sending the second information to the network equipment based on the PUCCH resource.

13. A hybrid automatic retransmission feedback method, the method performed by a network device, comprising:

And sending Downlink Control Information (DCI) to a relay device, wherein the DCI comprises side control information, the DCI is used for indicating the relay device to determine whether to perform hybrid automatic repeat request (HARQ) feedback to the network device, and the HARQ feedback indicates that the HARQ feedback is performed on the DCI.

14. The method of claim 13, wherein the HARQ feedback indication field is a dedicated information bit that is used only to indicate whether to perform the HARQ feedback.

15. The method of claim 13, wherein the HARQ feedback indication field is a multiplexing information field for jointly indicating whether to perform the HARQ feedback and for indicating other information for feedback different from the HARQ feedback.

16. The method of any of claims 13-15, wherein the DCI further comprises a HARQ feedback indication field, the method further comprising:

and sending a Radio Resource Control (RRC) signaling to the relay equipment, wherein the RRC signaling is used for indicating the corresponding relation between the numerical value in the HARQ feedback indication domain and whether the HARQ feedback is carried out or not.

17. The method according to any of claims 13-16, characterized in that at least one of the following information is determined based on predefined rules:

Time of HARQ feedback;

time-frequency domain resources fed back by HARQ;

the transmit power of the HARQ feedback.

18. The method according to any one of claims 13-17, further comprising:

and receiving first information sent by the relay equipment, wherein the first information is the HARQ feedback.

19. The method according to any one of claims 13-17, further comprising:

and receiving second information sent by the relay device, wherein the second information is used for jointly indicating the HARQ feedback and/or indicating other HARQ feedback different from the HARQ feedback.

20. The method of claim 19, wherein the priority of the HARQ feedback is higher than the priority of the other HARQ feedback.

21. The method according to claim 19 or 20, characterized in that the method further comprises:

transmitting resource indication information to the relay device, wherein the resource indication information is used for indicating the Physical Uplink Control Channel (PUCCH) resource of the relay device for transmitting the second information;

the receiving the second information sent by the relay device includes:

and receiving the second information sent by the relay equipment based on the PUCCH resource.

22. A hybrid automatic retransmission feedback device, the device comprising:

a receiving module, configured to receive downlink control information DCI sent by a network device;

and the processing module is used for determining whether to perform hybrid automatic repeat request (HARQ) feedback to the network equipment according to the DCI, wherein the HARQ feedback represents HARQ feedback to the DCI.

23. A hybrid automatic retransmission feedback device, the device comprising:

a sending module, configured to send downlink control information DCI to a relay device, where the DCI includes side control information, where the DCI is configured to instruct the relay device to determine whether to perform hybrid automatic repeat request HARQ feedback to a network device, where the HARQ feedback indicates that HARQ feedback is performed on the DCI.

24. A communication device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: performing the method of any one of claims 1 to 12.

25. A communication device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: performing the method of any one of claims 13 to 21.

26. A non-transitory computer readable storage medium, which when executed by a processor of a relay device, causes the relay device to perform the method of any of claims 1-12.

27. A non-transitory computer readable storage medium, which when executed by a processor of a network device, causes the network device to perform the method of any of claims 13 to 21.

28. A communication system includes a relay device and a network device, wherein,

the relay device being adapted to perform the method of any of claims 1 to 12;

the network device being adapted to perform the method of any of claims 13 to 21.