CN110708143B - Feedback method of uplink transmission, network equipment and terminal - Google Patents

Feedback method of uplink transmission, network equipment and terminal Download PDF

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Publication number
CN110708143B
CN110708143B CN201810746732.3A CN201810746732A CN110708143B CN 110708143 B CN110708143 B CN 110708143B CN 201810746732 A CN201810746732 A CN 201810746732A CN 110708143 B CN110708143 B CN 110708143B
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uplink signal
terminal
downlink signaling
information
group
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CN110708143A (en
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陈晓航
鲁智
孙鹏
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a feedback method of uplink transmission, network equipment and a terminal, wherein the feedback method of the uplink transmission comprises the following steps: receiving an uplink signal; and sending the hybrid automatic repeat request feedback information of the uplink signal through a group public downlink signaling and/or a terminal private downlink signaling. The scheme of the invention can coordinate the collided terminal when the uplink transmission resource of the terminal is collided, thereby recovering the signal of transmission failure and avoiding further collision, thereby improving the communication effectiveness.

Description

Feedback method of uplink transmission, network equipment and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a feedback method for uplink transmission, a network device, and a terminal.
Background
Compared with the existing mobile communication system, the fifth generation 5G mobile communication system needs to adapt to more diversified scenes and service requirements. Main scenes of a New Radio (NR) system include enhanced Mobile Broadband (eMBB), large-scale internet of things (mtc), Ultra-Reliable Low latency Communications (URLLC), and the like, and these scenes provide requirements for a corresponding system such as high reliability, Low latency, large bandwidth, and wide coverage.
In a conventional uplink transmission mode, a terminal, such as a User Equipment (UE), first sends a Scheduling Request (SR) if uplink data needs to be sent. After receiving the SR sent by the UE, the network device, such as the base station, may allocate resources for uplink transmission of the UE through an uplink grant (UL grant). And after receiving the UL grant, the UE may transmit uplink data on the allocated resources according to the scheduling information. The uplink transmission mode can obtain better system performance when the bandwidth is not limited or the connection number is not large.
The NR system supports a semi-persistent scheduling (configured grant) manner, thereby reducing a signaling interaction procedure and reducing power consumption of a terminal. In order to increase the capacity of the system, multiple UEs may transmit uplink signals on the same resource in a non-orthogonal manner. Meanwhile, the UE may be configured to operate in a semi-persistent scheduling (configured grant) state to transmit the uplink signal, thereby reducing signaling overhead and saving power consumption.
In order to distinguish signals of different UEs, the UEs may process uplink signals by using a non-orthogonal technique during uplink transmission. Specifically, different UEs may employ different Multiple Access (MA) identities (signatures). Wherein the MA identifier may be one or more of: codebook or Codeword (Codebook/Codeword), timing (Sequence), interleaving and/or mapping pattern (interleaving and/or mapping pattern), Demodulation reference signal (DMRS), Preamble (Preamble), Spatial dimension (Spatial dimension), and Power-dimension (Power-dimension). When receiving, the base station may perform UE detection according to a reference signal, such as a Preamble or DMRS, or acquire UE information through control information sent along with data.
Because the UE may initiate uplink transmission in a connected state, an idle state, or an inactive state for different scenarios, when the UE selects a transmission resource according to the preset configuration information, resource collision may occur, that is, a situation that a plurality of UEs select the same transmission resource occurs, thereby causing uplink transmission failure. However, for the above resource collision situation, it is not clear how to coordinate the colliding UEs so as to recover the failed transmission signal and avoid further collision.
Disclosure of Invention
The embodiment of the invention provides a feedback method of uplink transmission, network equipment and a terminal, and aims to solve the problem of how to coordinate a collided terminal when uplink transmission resources of the terminal collide.
In a first aspect, an embodiment of the present invention provides a feedback method for uplink transmission, which is applied to a network device, and includes:
receiving an uplink signal;
and sending Hybrid Automatic Repeat reQuest (HARQ) feedback information of the uplink signal through a group public downlink signaling and/or a terminal-specific downlink signaling.
In a second aspect, an embodiment of the present invention provides a feedback method for uplink transmission, which is applied to a terminal, and includes:
sending an uplink signal;
receiving HARQ feedback information of the uplink signal sent by network equipment;
wherein, the HARQ feedback information is sent through a group public downlink signaling and/or a terminal private downlink signaling.
In a third aspect, an embodiment of the present invention further provides a network device, including:
the first receiving module is used for receiving an uplink signal;
and the first sending module is used for sending the HARQ feedback information of the uplink signal through a group public downlink signaling and/or a terminal-specific downlink signaling.
In a fourth aspect, an embodiment of the present invention further provides a terminal, including:
the second sending module is used for sending the uplink signal;
a second receiving module, configured to receive HARQ feedback information of the uplink signal sent by a network device;
wherein, the HARQ feedback information is sent through a group public downlink signaling and/or a terminal private downlink signaling.
In a fifth aspect, an embodiment of the present invention further provides a terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the feedback method for uplink transmission.
In a sixth aspect, an embodiment of the present invention further provides a network device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the feedback method for uplink transmission.
In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements the steps of the feedback method for uplink transmission.
In the embodiment of the invention, the HARQ feedback information of the uplink signal is sent through the group public downlink signaling and/or the terminal special downlink signaling, so that the collided terminals can be coordinated when the uplink transmission resources of the terminals collide, the signals with transmission failure can be recovered, further collision can be avoided, and the communication effectiveness is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a flowchart of a feedback method of uplink transmission according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a feedback process according to an embodiment of the present invention;
FIG. 3 is a second schematic diagram illustrating a feedback process according to an embodiment of the present invention;
FIG. 4 is a third exemplary diagram illustrating a feedback process according to an embodiment of the present invention;
FIG. 5 is a fourth schematic diagram illustrating a feedback process according to an embodiment of the present invention;
FIG. 6 is a fifth schematic diagram illustrating a feedback process according to an embodiment of the present invention;
fig. 7 is a flowchart of another feedback method for uplink transmission according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating a network device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 10 is a second schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 11 is a second schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.
The techniques described herein are not limited to Long Time Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
The wireless communication system of the embodiment of the invention comprises a terminal and network equipment. The terminal may also be referred to as a terminal Device or a User Equipment (UE), where the terminal may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and a specific type of the terminal is not limited in the embodiment of the present invention. The network device may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention, only the Base Station in the NR system is taken as an example, but does not limit the specific type of base station.
Referring to fig. 1, an embodiment of the present invention provides a feedback method for uplink transmission, which is applied to a network device, and includes the following steps:
step 101: and receiving an uplink signal.
The uplink signal may be an uplink non-orthogonal transmission signal. Specifically, the uplink signal may be a non-orthogonal signal transmitted by a plurality of terminals based on a preset non-orthogonal transmission resource in an uplink non-orthogonal transmission mode. Alternatively, the plurality of terminals may be one or more terminal groups.
As can be appreciated, the uplink non-orthogonal transmission signal may include a preamble and data based on MA identification (signature); or, including a preamble, a DMRS, and MA identification-based data; or, data including DMRS and MA-based identity. The preamble may include a cyclic prefix, a preamble sequence, a guard interval, and the like.
Step 102: and sending the HARQ feedback information of the uplink signal through the group public downlink signaling and/or the terminal private downlink signaling.
After receiving the uplink signal, the network device, such as the base station, may send corresponding HARQ feedback information according to a detection result of the uplink signal. The detection result of the uplink signal may include obtaining a resource identifier of the uplink signal, and/or obtaining a terminal identifier carried by the uplink signal and obtained based on terminal detection. Optionally, the size of the group of common downlink signaling may be predefined or configurable, and may be aligned with the format size of other downlink signaling. The Search Space corresponding to the set of Common downlink signaling may be predefined or may be configured, for example, the set of Common downlink signaling may be detected in a Common Search Space (CSS) or a user-specific Search Space (USS).
The feedback method of uplink transmission of the embodiment of the invention sends the HARQ feedback information of the uplink signal through the group public downlink signaling and/or the terminal private downlink signaling, and can coordinate the collided terminals when the uplink transmission resources of the terminals collide, thereby recovering the signals of transmission failure, avoiding further collision and improving the communication effectiveness.
In this embodiment of the present invention, optionally, step 102 may include:
and the network equipment feeds back Acknowledgement (ACK) information or Negative Acknowledgement (NACK) information to the detected uplink signal through the group public downlink signaling.
Wherein, the group of common downlink signaling may include one or more ACK/NACK fields, and each ACK/NACK field may include: a resource identifier, and ACK information or NACK information of an uplink signal corresponding to the resource identifier, as shown in fig. 2 to 4.
In this case, it can be understood that, after receiving the group common downlink signaling, the terminal may retransmit the uplink signal when the group common downlink signaling includes the resource identifier of the uplink signal and the resource identifier of the uplink signal corresponds to the NACK information; or when the group of public downlink signaling includes the resource identifier of the uplink signal and the resource identifier of the uplink signal corresponds to the ACK information, determining that the uplink signal is successfully received without retransmission; or, when the group of common downlink signaling does not include the resource identifier of the uplink signal, retransmitting the uplink signal.
Or, when the terminal does not receive the group common downlink signaling, the terminal may determine that the uplink signal is not successfully received, and retransmit the uplink signal.
Optionally, the resource identifier may include any one of the following: the Preamble identifies ID, index of the Preamble, number of the Preamble, DMRS ID, index of DMRS, number of DMRS, and the like.
Optionally, the number of ACK/NACK fields included in the set of common downlink signaling may be predefined or configurable. It is understood that the number of the ACK/NACK fields may be configured by the network side through broadcast signaling or terminal-specific higher layer signaling. And if the number of ACK/NACK fields is not configured by network signaling, the number of ACK/NACK fields may be determined by a predefined number.
Optionally, the number of bits of each ACK/NACK field included in the set of common downlink signaling may be predefined or configurable. It is understood that the number of bits of each ACK/NACK field can be configured by the network side through broadcast signaling or terminal-specific higher layer signaling. And if the network signaling does not configure the number of bits of each ACK/NACK field, the number of each ACK/NACK field may be determined according to a predefined number of bits. For example, if one resource identifier (resource ID) occupies 5bits and the corresponding ACK information or NACK information occupies 1bit, the ACK/NACK field occupies 6 bits.
Optionally, the set of common downlink signaling may include a spare ACK/NACK field, and the spare ACK/NACK field may include placeholder bit information.
Optionally, when the group of common downlink signaling includes multiple ACK/NACK fields, the multiple ACK/NACK fields may be arranged in an ascending order or a descending order of the resource identifiers included in each ACK/NACK field, or the multiple ACK/NACK fields may be arranged in an ascending order or a descending order of the receiving time of the uplink signal corresponding to the resource identifier included in each ACK/NACK field.
Optionally, the network device feeds back ACK information or NACK information to the detected uplink signal, which may include at least one of the following:
feeding back ACK information to a detected first uplink signal, wherein the first uplink signal is sent by a plurality of terminals by using the same time-frequency resource (but different preambles or DMRSs), and uplink data of the plurality of terminals are successfully detected;
feeding back NACK information to a detected second uplink signal, wherein the second uplink signal is sent by a plurality of terminals by using the same time-frequency resource (and by using the same preamble or DMRS), and the uplink data of the plurality of terminals are all detected to be wrong;
and feeding back NACK information to a detected third uplink signal, wherein the third uplink signal is sent by a plurality of terminals by using the same time-frequency resource (and by using the same preamble or DMRS), the uplink data of part of the terminals are successfully detected, and the uplink data of part of the terminals are erroneously detected.
Next, a feedback process according to an embodiment of the present invention will be described with reference to fig. 2 to 4.
In the specific example of the present invention, as shown in fig. 2, it is assumed that a base station 1 receives an uplink signal 1 of a UE1, an uplink signal 2 of a UE2, and an uplink signal 3 of a UE3, where the uplink signal 1 includes preamble 1, DMRS1, and data, the uplink signal 2 includes preamble 2, DMRS 2, and data, and the uplink signal 3 includes preamble 2, DMRS 2, and data; and the base station 1 successfully receives the uplink signal 1, but the base station 1 decodes the data in the uplink signal 2 and the uplink signal 3 incorrectly due to the collision of the uplink signal 2 and the DMRS in the uplink signal 3. Based on this, the base station 1 may send HARQ feedback Information through a set of common Downlink Control Information (DCI) as shown in fig. 2, where the set of common DCI includes a plurality of ACK/NACK fields, the plurality of ACK/NACK fields includes an ACK/NACK field for the UE1, and the ACK/NACK field for the UE1 includes preamble ID 1 and ACK Information; meanwhile, the plurality of ACK/NACK fields may further include an ACK/NACK field for the UE2 and the UE3, and the ACK/NACK field for the UE2 and the UE3 includes preamble ID 2 and NACK information. It should be noted that if the base station 1 also receives uplink signals of other UEs, the information may be fed back through the ACK/NACK field (including preamble ID k and ACK/NACK information, for example) in the set of common DCI in a similar manner.
Or, in the specific example of the present invention, as shown in fig. 3, it is assumed that the base station 2 receives an uplink signal 4 of the UE4, an uplink signal 5 of the UE5, and an uplink signal 6 of the UE6, where the uplink signal 4 includes the DMRS1 and data, the uplink signal 5 includes the DMRS 2 and data, and the uplink signal 6 includes the DMRS 2 and data; and the base station 2 successfully receives the uplink signal 4, but the base station 2 decodes the data in the uplink signal 5 and the uplink signal 6 incorrectly due to the collision of the uplink signal 5 and the DMRS in the uplink signal 6. Based on this, the base station 2 may transmit HARQ feedback information through the group common DCI as shown in fig. 3, wherein the group common DCI includes a plurality of ACK/NACK fields including one ACK/NACK field for the UE4, the ACK/NACK field for the UE4 includes DMRS ID 1 and ACK information; meanwhile, the plurality of ACK/NACK fields may further include an ACK/NACK field for the UE5 and the UE6, and the ACK/NACK field for the UE5 and the UE6 includes DMRS ID 2 and NACK information. It should be noted that if the base station 2 also receives uplink signals of other UEs, information may be fed back through the ACK/NACK field (including DMRS ID k and ACK/NACK information, for example) in the set of common DCI in a similar manner.
Or, in the specific example of the present invention, as shown in fig. 4, it is assumed that the base station 3 receives an uplink signal 7 of the UE7, an uplink signal 8 of the UE8, and an uplink signal 9 of the UE9, where the uplink signal 7 includes DMRS1 and data, the uplink signal 8 includes DMRS 2 and data based on MA identity a, and the uplink signal 9 includes DMRS 3 and data based on MA identity a; and the base station 1 successfully receives the uplink signal 7, but the base station 1 decodes the data in the uplink signal 8 and the uplink signal 9 in error because of the collision of the MA identifications in the uplink signal 8 and the uplink signal 9. Based on this, the base station 3 may transmit HARQ feedback information through the group common DCI as shown in fig. 4, the group common DCI including a plurality of ACK/NACK fields including one ACK/NACK field for the UE7, the ACK/NACK field for the UE7 including DMRS ID 1 and ACK information; meanwhile, the plurality of ACK/NACK fields may further include an ACK/NACK field for the UE8, the ACK/NACK field for the UE8 including DMRS ID 2 and NACK information; meanwhile, the plurality of ACK/NACK fields may further include an ACK/NACK field for the UE9, where the ACK/NACK field for the UE9 includes DMRS ID 3 and NACK information. It should be noted that if the base station 3 also receives uplink signals of other UEs, information may be fed back through the ACK/NACK field (including DMRS ID k and ACK/NACK information, for example) in the set of common DCI in a similar manner.
In this embodiment of the present invention, optionally, step 102 may include:
and the network equipment feeds back ACK information to the successfully received uplink signal through grouping the public downlink signaling.
Wherein, the group of common downlink signaling may include one or more ACK fields, and each ACK field includes: a terminal identification; or, a terminal identifier, and ACK information of an uplink signal corresponding to the terminal identifier. It can be understood that when the ACK field only includes the terminal identifier, the terminal behavior needs to be predefined, that is, when the terminal receives the group public downlink signaling including the terminal identifier, the ACK information is received by default; and when the ACK field comprises the terminal identification and the corresponding ACK information, the terminal behavior does not need to be predefined.
In this case, after receiving the group common downlink signaling, the terminal may determine that the uplink signal is successfully received without retransmission when the group common downlink signaling includes the terminal identifier thereof; or, when the group of common downlink signaling does not include the terminal identifier thereof, retransmitting the uplink signal.
Or, when the terminal does not receive the group common downlink signaling, the terminal may determine that the uplink signal is not successfully received, and retransmit the uplink signal.
Optionally, the terminal identifier included in the ACK field may be selected as a Radio Network Temporary Identity (RNTI), and in order to reduce overhead of the terminal identifier, the terminal identifier may also be selected as a part of bits of the RNTI, such as X bits of the RNTI, where X may be predefined. For example, the terminal identity may be selected as the last 8 bits of the RNTI. Further optionally, the RNTI may be configured by a network side through Radio Resource Control (RRC) signaling or broadcast signaling.
Optionally, the number of ACK fields included in the set of common downlink signaling may be predefined or configurable. It is understood that the number of the ACK fields may be configured by the network side through broadcast signaling or terminal-specific higher layer signaling. And if the network signaling does not configure the number of ACK fields, the number of ACK fields may be determined by a predefined number.
Optionally, the number of bits of each ACK field included in the set of common downlink signaling may be predefined or configurable. It is understood that the number of bits of each ACK field may be configured by the network side through broadcast signaling or terminal-specific higher layer signaling. And if the network signaling does not configure the number of bits of each ACK field, the number of bits of each ACK field may be determined by a predefined number of bits.
Optionally, the set of common downlink signaling may include a spare ACK field, and the spare ACK field may include placeholder bit information.
Optionally, when the group of common downlink signaling includes multiple ACK fields, the multiple ACK fields may be arranged in an ascending order or a descending order of the terminal identifier included in each ACK field, or the multiple ACK fields may be arranged in an ascending order or a descending order of the receiving time of the uplink signal corresponding to the terminal identifier included in each ACK field.
For example, as shown in fig. 5, it is assumed that a base station 1 receives an uplink signal 1 of a UE1, an uplink signal 2 of a UE2, and an uplink signal 3 of a UE3, where the uplink signal 1 includes a DMRS1 and data based on an MA identity a, the uplink signal 2 includes a DMRS 2 and data based on an MA identity B, and the uplink signal 3 includes a DMRS 3 and data based on an MA identity B; and the base station 1 successfully receives the uplink signal 1, and due to the collision of the MA identifications in the uplink signal 2 and the uplink signal 3, the base station 1 decodes the data in the uplink signal 2 and the uplink signal 3 incorrectly. Based on this, the base station 1 may transmit HARQ feedback information through the group common DCI as shown in fig. 5, the group common DCI including a plurality of ACK fields including one ACK field for the UE1, the ACK field for the UE1 including the UE ID 1 and ACK information. Note that this ACK field for UE1 may also include only UE ID 1. If the base station 1 also successfully receives uplink signals of other UEs (e.g. UE x, UE k), the information may be fed back through the ACK field (e.g. including UE ID x and ACK information, or UE ID k and ACK information) in the set of common DCI in a similar manner.
In this embodiment of the present invention, optionally, step 102 may include:
the network equipment feeds back NACK information to the uplink signal which fails to be received through grouping the public downlink signaling, and/or feeds back ACK information to the uplink signal which succeeds in being received through the terminal special downlink signaling.
Wherein, the group of common downlink signaling may include one or more NACK fields, and each NACK field may include: a resource identifier; or, a resource identifier, and NACK information of an uplink signal corresponding to the resource identifier. It can be understood that, when the NACK field only includes the resource identifier, the terminal behavior needs to be predefined, that is, when the terminal receives the group common downlink signaling including the resource identifier of its uplink signal, the terminal receives NACK information by default; when the NACK field includes the resource identifier and its corresponding NACK information, the terminal behavior need not be predefined.
The terminal-specific downlink signaling may include: a terminal identification; or, the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification. Wherein the terminal identification may be contained within the terminal specific downlink signaling payload or scrambled on a cyclic redundancy check code (CRC) of the terminal specific downlink signaling. It can be understood that when the terminal-specific downlink signaling only includes the terminal identifier, the terminal behavior needs to be predefined, that is, when the terminal receives the terminal-specific downlink signaling including the terminal identifier, the terminal receives the ACK information by default; and when the terminal-specific downlink signaling comprises the terminal identifier and the corresponding ACK information thereof, the terminal behavior does not need to be predefined.
In this case, after receiving the group common downlink signaling, the terminal may retransmit the uplink signal when the group common downlink signaling includes the resource identifier of the uplink signal. Or after receiving the terminal-specific downlink signaling, the terminal determines that the uplink signal is successfully received without retransmission.
Or, when the terminal does not receive the group common downlink signaling and the terminal specific downlink signaling, the terminal may determine that the uplink signal is not successfully received, and retransmit the uplink signal.
Optionally, the number of NACK fields included in the set of common downlink signaling may be predefined or configurable. It is understood that the number of NACK fields can be configured by the network side through broadcast signaling or terminal-specific higher layer signaling. And if the network signaling does not configure the number of NACK fields, the number of NACK fields may be determined by a predefined number.
Optionally, the number of bits of each NACK field included in the set of common downlink signaling may be predefined or configurable. It is understood that the number of bits of each NACK field can be configured by the network side through broadcast signaling or terminal-specific higher layer signaling. And if the network signaling does not configure the number of bits for each NACK field, the number of bits for each NACK field may be determined according to a predefined number of bits.
Optionally, the set of common downlink signaling may include a vacant NACK field, and the vacant NACK field may include placeholder bit information.
Optionally, when the group of common downlink signaling includes multiple NACK fields, the multiple NACK fields may be arranged in an ascending order or a descending order of the resource identifiers included in each NACK field, or the multiple NACK fields may be arranged in an ascending order or a descending order of the receiving time of the uplink signal corresponding to the resource identifier included in each NACK field.
Optionally, the size of the terminal-specific downlink signaling may be predefined or configurable. It can be understood that the size of the terminal-specific downlink signaling can be configured by the network side through broadcast signaling or terminal-specific higher layer signaling. And if the network signaling does not configure the size of the terminal-specific downlink signaling, the size of the terminal-specific downlink signaling can be determined according to the predefined bit number.
For example, as shown in fig. 6, it is assumed that a base station 1 receives an uplink signal 1 of a UE1, an uplink signal 2 of a UE2, and an uplink signal 3 of a UE3, where the uplink signal 1 includes a DMRS1 and data based on an MA identity a, the uplink signal 2 includes a DMRS 2 and data based on an MA identity B, and the uplink signal 3 includes a DMRS 3 and data based on an MA identity B; and the base station 1 successfully receives the uplink signal 1, and due to the collision of the MA identifications in the uplink signal 2 and the uplink signal 3, the base station 1 decodes the data in the uplink signal 2 and the uplink signal 3 incorrectly. Based on this, as shown in fig. 6, base station 1 may send terminal-specific downlink signaling for UE1, this terminal-specific downlink signaling for UE1 including UE ID 1 and ACK information, where UE ID 1 may be contained within the downlink signaling payload or scrambled on a cyclic redundancy check code (CRC); in addition, the base station 1 may also feed back information through a group common DCI, where the group common DCI includes a plurality of NACK fields, and one NACK field for the UE2 may be included in the plurality of NACK fields, and the NACK field for the UE2 includes DMRS ID 2 and NACK information; meanwhile, a NACK field for the UE3 may be further included in the plurality of NACK fields, where the NACK field for the UE3 includes DMRS ID 3 and NACK information. It is noted that, if the set of common DCI includes a vacant NACK field, the vacant NACK field may include placeholder bit information.
Referring to fig. 7, an embodiment of the present invention further provides a feedback method for uplink transmission, which is applied to a terminal, and includes the following steps:
step 701: and sending the uplink signal.
In this embodiment of the present invention, the uplink signal may be an uplink non-orthogonal transmission signal. Specifically, the uplink signal may be a non-orthogonal signal transmitted by a plurality of terminals based on a preset non-orthogonal transmission resource in an uplink non-orthogonal transmission mode. Alternatively, the plurality of terminals may be one or more terminal groups.
Step 702: and receiving HARQ feedback information of the uplink signal sent by the network equipment, wherein the HARQ feedback information is sent through group public downlink signaling and/or terminal-specific downlink signaling.
Optionally, after receiving the uplink signal, the network device, such as the base station, may send corresponding HARQ feedback information according to a detection result of the received uplink signal. The detection result of the received uplink signal may include obtaining a resource identifier of the received uplink signal, and/or obtaining a terminal identifier carried by the received uplink signal, which is obtained based on terminal detection. It can be understood that the terminal may not listen to the feedback information when it is not transmitting the uplink signal.
The feedback method of uplink transmission of the embodiment of the invention sends the HARQ feedback information of the uplink signal through the group public downlink signaling and/or the terminal private downlink signaling, and can coordinate the collided terminals when the uplink transmission resources of the terminals collide, thereby recovering the signals of transmission failure, avoiding further collision and improving the communication effectiveness.
In this embodiment of the present invention, optionally, the HARQ feedback information may be sent through a group common downlink signaling, where the group common downlink signaling may include one or more ACK/NACK fields, and each ACK/NACK field may include: a resource identifier, and ACK information or NACK information of an uplink signal corresponding to the resource identifier.
Further optionally, after step 702, the method may further include:
when the group of public downlink signaling comprises the resource identifier of the uplink signal and the resource identifier of the uplink signal corresponds to NACK information, the terminal retransmits the uplink signal;
or, when the group of common downlink signaling includes the resource identifier of the uplink signal and the resource identifier of the uplink signal corresponds to the ACK information, the terminal determines that the uplink signal is successfully received without retransmission;
or, when the group of common downlink signaling does not include the resource identifier of the uplink signal, the terminal determines that the uplink signal is not successfully received and retransmits the uplink signal, and specifically, the terminal may retransmit the uplink signal after a certain period of time (usually, after a timer is finished).
It can be understood that, when the terminal sends an uplink signal but does not receive a group common downlink signaling (the group common downlink signaling may or may not include feedback information for the terminal), it may determine that the uplink signal is not successfully received, and retransmit the uplink signal, specifically, after a period of time (generally, after a timer ends), retransmit the uplink signal.
In this embodiment of the present invention, optionally, the HARQ feedback information may be sent through a group common downlink signaling, where the group common downlink signaling may include one or more ACK fields, and each ACK field may include: a terminal identification; or, a terminal identifier, and ACK information of an uplink signal corresponding to the terminal identifier.
Further optionally, after step 702, the method may further include:
when the group of common downlink signaling includes the terminal identifier of the terminal, the terminal determines that the uplink signal is successfully received without retransmission.
It should be noted that, at this time, the ACK field in the group of common downlink signaling may include only one terminal identifier, or may include one terminal identifier and ACK information of the uplink signal corresponding to the terminal identifier.
Or, when the group of common downlink signaling does not include the terminal identifier of the terminal, the terminal determines that the uplink signal is not successfully received, and retransmits the uplink signal, and specifically, after a period of time (usually, after a timer is over), the uplink signal may be retransmitted.
It should be noted that, at this time, the ACK field in the group of common downlink signaling may include only one terminal identifier, or may include one terminal identifier and ACK information of the uplink signal corresponding to the terminal identifier.
It can be understood that, when the terminal sends an uplink signal but does not receive a group of common downlink signaling (the group of common downlink signaling may or may not include feedback information for the terminal), it may determine that the uplink signal is not successfully received and retransmit the uplink signal, and specifically, may retransmit the uplink signal at a subsequent available uplink transmission time; or, after a certain time (usually after a timer is over), the uplink signal is retransmitted.
In the embodiment of the present invention, optionally, the HARQ feedback information may be sent through a group common downlink signaling and/or a terminal dedicated downlink signaling. Wherein, the group of common downlink signaling may include one or more NACK fields, and each NACK field may include: a resource identifier; or, a resource identifier, and negative acknowledgement information of an uplink signal corresponding to the resource identifier. The terminal-specific downlink signaling may include: a terminal identification; or the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification.
Further optionally, after step 702, the method may further include:
when the HARQ feedback information is sent through the terminal-specific downlink signaling, the terminal determines that the uplink signal is successfully received without retransmission.
It should be noted that, at this time, the terminal-specific downlink signaling may include only the terminal identifier, or may include the terminal identifier and the ACK information of the uplink signal corresponding to the terminal identifier.
Or, when the HARQ feedback information is sent through a group of common downlink signaling and the group of common downlink signaling includes the resource identifier of the uplink signal, the terminal determines that the uplink signal is not successfully received and retransmits the uplink signal, and specifically, the terminal may retransmit the uplink signal at a subsequent available uplink transmission time.
It should be noted that, at this time, the NACK field in the group of common downlink signaling may include only one resource identifier, or may include one resource identifier and NACK information of the uplink signal corresponding to the resource identifier.
It can be understood that, when the terminal sends the uplink signal but does not receive the feedback information, the feedback information may be sent through a group of common downlink signaling (the group of common downlink signaling may or may not include feedback information for the terminal), or may be sent through a terminal-specific downlink signaling, it may be determined that the uplink signal is not successfully received, and the uplink signal is retransmitted, and specifically, the uplink signal may be retransmitted after a period of time (usually, after a timer is ended). Alternatively, when the terminal transmits the uplink signal but does not receive the feedback information within a period of time T (usually, during the time counted by a timer), the feedback information may be transmitted through the group common downlink signaling including the NACK field, and specifically, after the period of time T (usually, after the time counted by the timer is over), it may be determined that the uplink signal is successfully received without retransmission.
The above embodiments describe the feedback method for uplink transmission of the present invention, and the network device and the terminal of the present invention are described below with reference to the embodiments and the drawings.
Referring to fig. 8, an embodiment of the present invention further provides a network device 80, including:
a first receiving module 81, configured to receive an uplink signal;
a first sending module 82, configured to send HARQ feedback information of the uplink signal through a group common downlink signaling and/or a terminal-specific downlink signaling.
The network equipment of the embodiment of the invention can coordinate the collided terminal when the uplink transmission resource of the terminal is collided by sending the HARQ feedback information of the uplink signal through the group public downlink signaling and/or the terminal special downlink signaling, thereby recovering the signal of transmission failure and avoiding further collision.
In this embodiment of the present invention, optionally, the first sending module 82 is specifically configured to:
and feeding back acknowledgement information or negative acknowledgement information for the detected uplink signal through the group of public downlink signaling.
Optionally, the group of common downlink signaling includes one or more acknowledgement or negative acknowledgement fields, where each acknowledgement or negative acknowledgement field includes: the resource identification, and the acknowledgement information or the negative acknowledgement information of the uplink signal corresponding to the resource identification.
Optionally, the resource identifier includes any one of:
preamble identification and index of DMRS.
Optionally, the group of common downlink signaling includes multiple acknowledgement or negative acknowledgement fields, where the multiple acknowledgement or negative acknowledgement fields are arranged according to an ascending order or a descending order of resource identifiers included in each acknowledgement or negative acknowledgement field, or the multiple acknowledgement or negative acknowledgement fields are arranged according to an ascending order or a descending order of receiving time of an uplink signal corresponding to a resource identifier included in each acknowledgement or negative acknowledgement field.
Optionally, the first sending module 82 is specifically configured to:
and feeding back confirmation response information for the successfully received uplink signal through the group of public downlink signaling.
Optionally, the group of common downlink signaling includes one or more acknowledgement fields, where each acknowledgement field includes: a terminal identification; or, the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification.
Optionally, the group of common downlink signaling includes multiple acknowledgement fields, where the multiple acknowledgement fields are arranged according to an ascending order or a descending order of the terminal identifier included in each acknowledgement field, or the multiple acknowledgement fields are arranged according to an ascending order or a descending order of the reception time of the uplink signal corresponding to the terminal identifier included in each acknowledgement field.
Optionally, the first sending module 82 is specifically configured to:
and feeding back negative response information for the uplink signal which fails to be received through the group of public downlink signaling, and/or feeding back confirmation response information for the uplink signal which succeeds in being received through the terminal special downlink signaling.
Optionally, the group of common downlink signaling includes one or more negative acknowledgement fields, where each negative acknowledgement field includes: identifying a resource; or, the resource identifier, and the negative acknowledgement information of the uplink signal corresponding to the resource identifier.
Optionally, the terminal-specific downlink signaling includes: a terminal identification; or, the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification.
Referring to fig. 9, an embodiment of the present invention further provides a terminal 90, including:
a second sending module 91, configured to send an uplink signal;
a second receiving module 92, configured to receive HARQ feedback information of the uplink signal sent by the network device;
wherein, the HARQ feedback information is sent through a group public downlink signaling and/or a terminal private downlink signaling.
The terminal of the embodiment of the invention can retransmit the signal with transmission failure when the uplink transmission resource is collided and the signal transmission is failed by receiving the HARQ feedback information of the uplink signal sent by the network equipment by means of the group public downlink signaling and/or the terminal private downlink signaling, thereby recovering the signal with transmission failure and avoiding further collision.
In this embodiment of the present invention, optionally, the HARQ feedback information is sent through a group common downlink signaling, where the group common downlink signaling includes one or more acknowledgement or negative acknowledgement fields, and each acknowledgement or negative acknowledgement field includes: the resource identification, and the acknowledgement information or the negative acknowledgement information of the uplink signal corresponding to the resource identification.
Further optionally, the second sending module 91 is further configured to:
when the group of public downlink signaling comprises the resource identifier of the uplink signal and the resource identifier of the uplink signal corresponds to negative response information, retransmitting the uplink signal;
or, when the group of common downlink signaling does not include the resource identifier of the uplink signal, retransmitting the uplink signal.
Optionally, the HARQ feedback information is sent through a group common downlink signaling, where the group common downlink signaling includes one or more acknowledgement fields, and each acknowledgement field includes: a terminal identification; or, the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification.
Further optionally, the second sending module 91 is further configured to:
when the group of public downlink signaling comprises the terminal identification of the terminal, determining that the uplink signal is successfully received;
or, when the group of common downlink signaling does not include the terminal identifier of the terminal, retransmitting the uplink signal.
Optionally, the HARQ feedback information is sent through a group common downlink signaling and/or a terminal dedicated downlink signaling; wherein the group of common downlink signaling includes one or more negative acknowledgement fields, and each negative acknowledgement field includes: identifying a resource; or, a resource identifier and negative acknowledgement information of an uplink signal corresponding to the resource identifier; the terminal-specific downlink signaling comprises: a terminal identification; or, the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification.
Further optionally, the second sending module 91 is further configured to:
when the HARQ feedback information is sent through terminal-specific downlink signaling, determining that the uplink signal is successfully received;
or, when the HARQ feedback information is sent through a group common downlink signaling and the group common downlink signaling includes the resource identifier of the uplink signal, retransmitting the uplink signal.
The embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the above feedback method embodiment for uplink transmission, and can achieve the same technical effect, and is not described herein again to avoid repetition.
Specifically, fig. 10 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, and a power supply 1011. Those skilled in the art will appreciate that the terminal configuration shown in fig. 10 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The radio frequency unit 1001 is configured to send an uplink signal; receiving HARQ feedback information of the uplink signal sent by network equipment; the HARQ feedback information is sent through group public downlink signaling and/or terminal-specific downlink signaling.
Terminal 1000 according to the embodiment of the present invention, by receiving HARQ feedback information of an uplink signal sent by a network device by means of a group common downlink signaling and/or a terminal dedicated downlink signaling, can coordinate a terminal that has collided when uplink transmission resources of the terminal collide, so that a signal that fails transmission can be recovered, and further collision can be avoided, thereby improving communication effectiveness.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 1001 may be used for receiving and sending signals during a message transmission or a call, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1010; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 1001 may also communicate with a network and other devices through a wireless communication system.
The terminal provides the user with wireless broadband internet access through the network module 1002, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 1003 may convert audio data received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into an audio signal and output as sound. Also, the audio output unit 1003 can provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the terminal 1000. The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.
The input unit 1004 is used to receive an audio or video signal. The input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, the Graphics processor 10041 Processing image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1006. The image frames processed by the graphic processor 10041 may be stored in the memory 1009 (or other storage medium) or transmitted via the radio frequency unit 1001 or the network module 1002. The microphone 10042 can receive sound and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1001 in case of a phone call mode.
Terminal 1000 can also include at least one sensor 1005 such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 10061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 10061 and/or a backlight when the terminal 1000 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1005 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.
The display unit 1006 is used to display information input by the user or information provided to the user. The Display unit 1006 may include a Display panel 10061, and the Display panel 10061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 1007 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 10071 (e.g., operations by a user on or near the touch panel 10071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 10071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1010, and receives and executes commands sent by the processor 1010. In addition, the touch panel 10071 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 10071, the user input unit 1007 can include other input devices 10072. Specifically, the other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 10071 can be overlaid on the display panel 10061, and when the touch panel 10071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1010 to determine the type of the touch event, and then the processor 1010 provides a corresponding visual output on the display panel 10061 according to the type of the touch event. Although in fig. 10, the touch panel 10071 and the display panel 10061 are two independent components for implementing the input and output functions of the terminal, in some embodiments, the touch panel 10071 and the display panel 10061 may be integrated for implementing the input and output functions of the terminal, which is not limited herein.
Interface unit 1008 is an interface for connecting an external device to terminal 1000. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1008 can be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within terminal 1000 or can be used to transmit data between terminal 1000 and external devices.
The memory 1009 may be used to store software programs as well as various data. The memory 1009 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, and the like), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1009 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 1010 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 1009 and calling data stored in the memory 1009, thereby integrally monitoring the terminal. Processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.
Terminal 1000 can also include a power supply 1011 (e.g., a battery) for powering the various components, and preferably, power supply 1011 can be logically coupled to processor 1010 through a power management system that provides management of charging, discharging, and power consumption.
In addition, terminal 1000 can also include some functional modules not shown, which are not described herein.
The embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the processes of the above feedback method embodiment applied to uplink transmission of the network device, and can achieve the same technical effects, and is not described herein again to avoid repetition.
Specifically, fig. 11 is a schematic diagram of a hardware structure of a network device for implementing various embodiments of the present invention, where the network device 110 includes, but is not limited to: bus 111, transceiver 112, antenna 113, bus interface 114, processor 115, and memory 116.
In this embodiment of the present invention, the network device 110 further includes: a computer program stored on the memory 116 and executable on the processor 115, the computer program when executed by the processor 115 performing the steps of:
receiving an uplink signal; and sending the HARQ feedback information of the uplink signal through a group public downlink signaling and/or a terminal private downlink signaling.
A transceiver 112 for receiving and transmitting data under the control of a processor 115.
In fig. 11, a bus architecture (represented by bus 111), bus 111 may include any number of interconnected buses and bridges, bus 111 linking together various circuits including one or more processors, represented by processor 115, and memory, represented by memory 116. The bus 111 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 114 provides an interface between the bus 111 and the transceiver 112. The transceiver 112 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 115 is transmitted over a wireless medium via the antenna 113, and further, the antenna 113 receives the data and transmits the data to the processor 115.
The processor 115 is responsible for managing the bus 111 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory 116 may be used to store data used by the processor 115 in performing operations.
Alternatively, the processor 115 may be a CPU, ASIC, FPGA or CPLD.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program can implement each process of the feedback method for uplink transmission, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (12)

1. A feedback method of uplink transmission is applied to network equipment, and is characterized by comprising the following steps:
receiving an uplink signal;
sending hybrid automatic repeat request HARQ feedback information of the uplink signal through a group public downlink signaling and/or a terminal private downlink signaling;
wherein, the sending the HARQ feedback information of the uplink signal through the group public downlink signaling and/or the terminal private downlink signaling comprises:
and feeding back negative response information to the uplink signal which is failed to be received through the group of public downlink signaling, and feeding back confirmation response information to the uplink signal which is successfully received through the terminal-specific downlink signaling.
2. The feedback method of claim 1, wherein one or more negative acknowledgement fields are included in the group common downlink signaling.
3. The feedback method as claimed in claim 2, wherein the negative acknowledgement field comprises: identifying a resource; or, the resource identifier, and the negative acknowledgement information of the uplink signal corresponding to the resource identifier.
4. The feedback method according to claim 1, wherein the terminal-specific downlink signaling comprises: a terminal identification; or, the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification.
5. A feedback method of uplink transmission is applied to a terminal, and is characterized by comprising the following steps:
sending an uplink signal;
receiving HARQ feedback information of the uplink signal sent by network equipment;
wherein, the HARQ feedback information is sent through a group public downlink signaling and/or a terminal private downlink signaling;
when the HARQ feedback information is sent through a terminal dedicated downlink signaling, the uplink signal is determined to be successfully received; and when the HARQ feedback information is sent through a group public downlink signaling and the group public downlink signaling comprises the resource identifier of the uplink signal, retransmitting the uplink signal.
6. The feedback method according to claim 5, wherein one or more negative acknowledgement fields are included in the group common downlink signaling;
the terminal-specific downlink signaling comprises: a terminal identification; or, the terminal identification and the acknowledgement information of the uplink signal corresponding to the terminal identification.
7. The feedback method as claimed in claim 6, wherein the negative acknowledgement field comprises: identifying a resource; or, the resource identifier, and the negative acknowledgement information of the uplink signal corresponding to the resource identifier.
8. A network device, comprising:
the first receiving module is used for receiving an uplink signal;
a first sending module, configured to send HARQ feedback information of the uplink signal through a group common downlink signaling and/or a terminal-specific downlink signaling;
wherein the first sending module is specifically configured to: and feeding back negative response information to the uplink signal which is failed to be received through the group of public downlink signaling, and feeding back confirmation response information to the uplink signal which is successfully received through the terminal-specific downlink signaling.
9. A terminal, comprising:
the second sending module is used for sending the uplink signal;
a second receiving module, configured to receive HARQ feedback information of the uplink signal sent by a network device;
wherein, the HARQ feedback information is sent through a group public downlink signaling and/or a terminal private downlink signaling;
when the HARQ feedback information is sent through a terminal dedicated downlink signaling, the uplink signal is determined to be successfully received; and when the HARQ feedback information is sent through a group public downlink signaling and the group public downlink signaling comprises the resource identifier of the uplink signal, retransmitting the uplink signal.
10. Network device comprising a memory, a processor and a computer program stored on said memory and executable on said processor, characterized in that said computer program, when executed by said processor, implements the steps of the feedback method for upstream transmission according to any of claims 1 to 4.
11. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program, when executed by the processor, implements the steps of the feedback method for upstream transmission according to any of claims 5 to 7.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the feedback method for upstream transmission according to any one of claims 1 to 7.
CN201810746732.3A 2018-07-09 2018-07-09 Feedback method of uplink transmission, network equipment and terminal Active CN110708143B (en)

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