WO2019153898A1 - 指示方法，网络设备及用户设备 - Google Patents

指示方法，网络设备及用户设备 Download PDF

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Publication number
WO2019153898A1
WO2019153898A1 PCT/CN2018/121983 CN2018121983W WO2019153898A1 WO 2019153898 A1 WO2019153898 A1 WO 2019153898A1 CN 2018121983 W CN2018121983 W CN 2018121983W WO 2019153898 A1 WO2019153898 A1 WO 2019153898A1
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WO
WIPO (PCT)
Prior art keywords
transmission unit
downlink transmission
response
unit set
downlink
Prior art date
Application number
PCT/CN2018/121983
Other languages
English (en)
French (fr)
Inventor
贾琼
朱俊
吴霁
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112020016167-5A priority Critical patent/BR112020016167A2/pt
Priority to EP18905688.0A priority patent/EP3751763A4/en
Priority to JP2020542956A priority patent/JP7297773B2/ja
Priority to KR1020207026316A priority patent/KR102523840B1/ko
Publication of WO2019153898A1 publication Critical patent/WO2019153898A1/zh
Priority to US16/990,712 priority patent/US11431462B2/en

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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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • 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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
    • 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
    • H04L1/1854—Scheduling and prioritising 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
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present application relates to the field of communications and, more particularly, to an indication method, a network device, and a user equipment.
  • the error control may be performed by using an indication method such as a hybrid automatic repeat request (HARQ) or an automatic repeat request (ARQ).
  • HARQ hybrid automatic repeat request
  • ARQ automatic repeat request
  • the receiving end performs error detection. If the receiving is correct, it returns an Acknowledgement (ACK), and if it is wrong, it returns a Negative Acknowledgement (NACK).
  • ACK Acknowledgement
  • NACK Negative Acknowledgement
  • the ACK or WtACK sent by the receiving end cannot be received by the transmitting end, which may affect the subsequent transmission. There is currently no solution to this problem.
  • the application provides an indication method, a network device and a user equipment.
  • the network device displays or implicitly indicates one or more network devices need to receive through indication information (including but not limited to a bitmap, information indicating the number of Wt, indicating the index) carried on one or more downlink transmission units.
  • Receive response of the set of downlink transmission units that is, a reception response indicating one or more downlink transmission unit sets that the UE needs to send to the network device, so that the UE can correctly send the network device to indicate the transmission on the correct uplink transmission unit.
  • Receive response of the set of downlink transmission units This reduces errors and unnecessary retransmissions, ensuring quality of service while improving communication efficiency.
  • the error rate of the entire communication system can be further reduced, and the communication quality and efficiency can be improved.
  • an indication method where the user equipment UE receives a bitmap sent by a network device on one or more downlink transmission units included in a downlink transmission unit set; wherein the bitmap And configured to send, by the UE, a receiving response of one or more downlink transmission unit sets on an uplink transmission unit corresponding to the downlink transmission unit set.
  • a downlink transmission unit set corresponds to an uplink transmission unit.
  • the number of the maximum downlink transmission unit set supported by the network device is M, where M is greater than or equal to 1 A positive integer, then the number of bits of the bitmap is M.
  • a bit of the bitmap is used to indicate whether the UE sends a downlink transmission unit set. Receive a response.
  • the indication method further includes: acquiring, by the UE, an index of a downlink transmission unit set, where an index is A set of downlink transmission units corresponds.
  • the indication method further includes: the uplink transmission corresponding to the UE in the downlink transmission unit set A receiving response of the one or more downlink transmission unit sets indicated by the bitmap is transmitted on the unit.
  • the indication method further includes: the UE listening to whether the uplink transmission unit is idle; And receiving, by the uplink transmission unit, the receiving response of the one or more downlink transmission unit sets indicated by the bitmap includes: if the uplink transmission unit is idle, the UE is in the downlink And receiving, by the uplink transmission unit corresponding to the transmission unit set, a reception response of one or more downlink transmission unit sets indicated by the bitmap.
  • an indication method includes: determining, by a network device, a bitmap, where the bitmap is used to indicate that a network device needs to receive a reception response of one or more downlink transmission unit sets; The network device transmits the bitmap to the user equipment UE on one or more first downlink transmission units included in the downlink transmission unit set.
  • the receiving response of the one or more downlink transmission unit sets that need to be received includes:
  • the receiving response of the one or more downlink transmission unit sets that are not successfully received by the network device in history is not The method includes: the network device is not successfully received, and the network device has received the one or more downlink transmission unit sets indicated by the bitmap on the one or more downlink transmission units before the downlink transmission unit set response.
  • the number of the maximum downlink transmission unit set supported by the network device is M, where M is greater than or equal to A positive integer of 1, then the number of bits of the bitmap is M.
  • one bit of the bitmap is used to indicate a downlink transmission unit set.
  • the network device is further configured on one or more downlink transmission units included in the downlink transmission unit set.
  • the UE transmits an index of a downlink transmission unit set; wherein, one index corresponds to one downlink transmission unit set.
  • the network device receives one or more downlinks on an uplink transmission unit corresponding to the downlink transmission unit set.
  • the network device receives the one on the uplink transmission unit corresponding to the downlink transmission unit set.
  • the indication method further includes: if the network device successfully receives the receiving response of the one or more downlink transmission unit sets, the network device Or a plurality of downlink transmission unit sets are unbound from an index of the one or more downlink transmission unit sets.
  • the information indicating the quantity Wt is carried by the downlink that is carried on the one or more downlink transmission units.
  • Control information DCI indication is carried by the downlink that is carried on the one or more downlink transmission units.
  • the DCI includes a downlink allocation indication DAI, where the DAI is used to indicate that the UE is in the first A receiving response of the Wu downlink transmission unit is transmitted on the uplink transmission unit corresponding to the downlink transmission unit set.
  • DAI downlink allocation indication
  • the method further includes:
  • the UE on one or more downlink transmission units included in the first downlink transmission unit set, receives information indicating the number Wu sent by the network device, where Wu is a positive integer or 0;
  • the information indicating the quantity Wu is used to instruct the UE to send a receiving response of the Wu downlink transmission units on the uplink transmission unit corresponding to the first downlink transmission unit set.
  • the information indicating the quantity Wu is controlled by a downlink that is carried on the one or more downlink transmission units. DAI indication in the information DCI.
  • the total total DAI in the DAI is used to indicate that the UE is in the first downlink transmission unit
  • the receiving response of the Wu downlink transmission unit is transmitted on the uplink transmission unit corresponding to the set.
  • a third aspect provides an indication method, where the user equipment UE receives information indicating the number Wt sent by the network device on one or more downlink transmission units included in the first downlink transmission unit set. And the information indicating the quantity Wt is used to indicate that the UE sends the Wt downlink transmission unit set on the uplink transmission unit corresponding to the first downlink transmission unit set. Receive response.
  • a downlink transmission unit set corresponds to an uplink transmission unit.
  • Wt is equal to 1
  • the Wt downlink transmission unit set is the first downlink transmission unit set.
  • the UE is configured according to the information indicating the quantity Wt received on the one or more downlink transmission units. And receiving, by the uplink transmission unit corresponding to the first downlink transmission unit set, a reception response of the Wt downlink transmission unit set.
  • the first downlink transmission unit set includes at least two downlink transmission units
  • the UE is according to Receiving the received response of the Wt downlink transmission unit set on the uplink transmission unit corresponding to the first downlink transmission unit set, where the information indicating the quantity Wt received on the one or more downlink transmission units includes: Receiving the received response of the Wt downlink transmission unit set on the uplink transmission unit corresponding to the first downlink transmission unit set, where the information indicating the number Wt received on the last downlink transmission unit included in the first downlink transmission unit set .
  • Wt is greater than or equal to 2
  • all downlink transmission units in the first downlink transmission unit set are The received responses of the Wt downlink transmission unit sets include: a first set of received responses and a third set of received responses; wherein the first set of received responses includes the first downlink transmission a receiving response of the set of units; the receiving response of the third set includes a receiving response of the set of Wt-1 downlink transmission units; wherein, the receiving response of the set of Wt-1 downlink transmission units includes: a response of the set of Wt-1 downlink transmission units sent by the UE in the E uplink transmission units, where the E uplink transmission units are located before the first downlink transmission unit set, and E is less than or equal to Wt-1 .
  • Wt is greater than or equal to 2
  • Bt in the first downlink transmission unit set is changed B times.
  • the receiving response of the Wt downlink transmission unit set includes a first set of received responses, a second set of received responses, and a third set of received responses; wherein the first set of received responses includes the first a receiving response of the downlink transmission unit set; the receiving response of the second set includes a receiving response of the A downlink transmission unit set, and the receiving response of the A downlink transmission unit set includes: the network device indicating the UE, In the B-time change, the received response of the C downlink transmission unit sets transmitted in an uplink transmission unit before the changed first downlink transmission unit, where A, B, and C are greater than or equal to 1.
  • the third set includes a received response of the D downlink transmission unit sets, and the received response of the D downlink transmission unit sets
  • the network device indicates the receiving response of the D downlink transmission unit sets sent by the UE in the E uplink transmission units, where E and D are integers greater than or equal to 0, and E is less than or equal to D;
  • an uplink transmission unit before the first downlink transmission unit after each change is specifically Including, in B changes, the most recent uplink transmission unit before the first downlink transmission unit after each change
  • the E uplink transmission units are determined in chronological order.
  • the E uplink transmission units are determined in reverse chronological order.
  • the reception response of the Ci downlink transmission unit sets transmitted in one uplink transmission unit before the first downlink transmission unit after the second change.
  • the indication method further includes: the UE acquiring information indicating an offset K, where K is greater than a positive integer equal to 0; the E uplink transmission units are located before the first downlink transmission unit set, and the E uplink transmission units are located, where the first downlink transmission unit set includes a first downlink The transmission unit is shifted forward by K transmission units.
  • the UE acquires information indicating that the network device indicates a delay J, where J is greater than or equal to 0. a positive integer; J is greater than or equal to 1, then the E uplink transmission units before the first downlink transmission unit set include, the first downlink transmission unit set is offset before the E-1 transmission units Uplink transmission unit.
  • the indication method further includes: the UE acquiring information indicating an offset K, where K is greater than A positive integer equal to 0; each of the changed first downlink transmission units includes: before each changed first downlink transmission unit is shifted forward by K transmission units.
  • the UE acquires information indicating that the network device indicates a delay J, where J is greater than or equal to 0.
  • a positive integer the first downlink transmission unit after each change includes: the first downlink transmission unit after each change is forwarded before the J-1 transmission unit.
  • the UE acquires an index, where an index corresponds to a downlink transmission unit set.
  • the UE is configured according to the information indicating the quantity Wt received on the one or more downlink transmission units. And receiving, by the uplink transmission unit corresponding to the first downlink transmission unit set, a reception response of the Wt downlink transmission unit set, where the UE is configured according to the information indicating the quantity Wt received on the one or more downlink transmission units. A receiving response of the Wt downlink transmission unit set is transmitted on the uplink transmission unit corresponding to the index.
  • the UE monitors whether the uplink transmission unit is idle; and the UE is configured according to the one or more downlinks. And transmitting, by the information indicating the quantity Wt received on the transmission unit, the receiving response on the uplink transmission unit corresponding to the first downlink transmission unit set, if the uplink transmission unit is idle, the UE according to the one or more The information indicating the number Wt received on the row transmission unit transmits a reception response on the uplink transmission unit corresponding to the first downlink transmission unit set.
  • the information indicating the quantity Wt is carried by the downlink carried on the one or more downlink transmission units Control information DCI indication.
  • the DCI includes a downlink allocation indication DAI, where the DAI is used to indicate that the network device needs to receive Wu.
  • the receiving response of the downlink transmission unit is a downlink allocation indication DAI, where the DAI is used to indicate that the network device needs to receive Wu.
  • the method further includes: the network device, the one included in the first downlink transmission unit set or On the multiple downlink transmission units, the information indicating the number Wu is sent, where Wu is a positive integer or 0; the information indicating the quantity Wu is used to indicate that the network device needs to receive the reception response of the Wu downlink transmission units.
  • the information indicating the quantity Wu is controlled by a downlink that is carried on the one or more downlink transmission units. DAI indication in the information DCI.
  • the total total DAI in the DAI is used to indicate that the network device needs to receive the received downlink transmissions.
  • the unit receives the response.
  • a fourth aspect provides an indication method, where the user equipment UE receives information indicating the quantity Q sent by the network device on one or more downlink transmission units included in the first downlink transmission unit set.
  • Q is a positive integer greater than or equal to 0; the information used to indicate the quantity Q is used to indicate that the UE sends Q+1 downlink transmissions on an uplink transmission unit corresponding to the first downlink transmission unit set.
  • Q is equal to 0, and the Q+1 downlink transmission unit set is the first downlink transmission unit set.
  • the UE is configured according to the information indicating the quantity Q received on the one or more downlink transmission units. And receiving, by the uplink transmission unit corresponding to the first downlink transmission unit set, a reception response of the Q+1 downlink transmission unit set.
  • the first downlink transmission unit set includes at least two downlink transmission units
  • the UE is according to Receiving the received response of the Q+1 downlink transmission unit set on the uplink transmission unit corresponding to the first downlink transmission unit set, where the information indicating the quantity Q received on the one or more downlink transmission units includes: And transmitting Q+1 downlink transmission units on the uplink transmission unit corresponding to the first downlink transmission unit set according to the information indicating the quantity Q received on the last downlink transmission unit included in the first downlink transmission unit set. The receiving response of the collection.
  • Q is greater than or equal to 1, and all downlink transmission units in the first downlink transmission unit set are If the Qs are all the same, the receiving response of the set of the Q downlink transmission units includes: a receiving response of the third set; wherein the receiving response of the third set includes a receiving response of the Q downlink transmission unit sets; The receiving response of the Q downlink transmission unit sets includes: the network device indicating a response of the Q downlink transmission unit sets sent by the UE in the E uplink transmission units; wherein the E uplink transmission units are located in the E is less than or equal to Q before a set of downlink transmission units.
  • the claim is characterized in that Q is greater than or equal to 1, and the first downlink transmission unit set is
  • the receiving response of the Q downlink transmission unit sets includes a second set of receiving responses and a third set of receiving responses, where the Qs of all the downlink transmission units are changed B times, wherein the receiving responses of the second set include a receiving response of the set of A downlink transmission units, the receiving response of the set of A downlink transmission units includes: the network device instructing the UE, in each of the B times of changes, before each changed first downlink transmission unit In an uplink transmission unit, a received response of a set of C downlink transmission units, where A, B, and C are integers greater than or equal to 1, B is less than or equal to A, and C is less than or equal to A; a receiving response including a set of D downlink transmission units, where the receiving response of the D downlink transmission unit sets includes: the network device indicating the UE, in E
  • an uplink transmission unit before the first downlink transmission unit after each change is specifically Including, in B changes, the most recent uplink transmission unit before the first downlink transmission unit after each change
  • the E uplink transmission units are determined in chronological order.
  • the E uplink transmission units are determined in reverse chronological order.
  • the reception response of the Ci downlink transmission unit sets transmitted in one uplink transmission unit before the first downlink transmission unit after the second change.
  • the indication method further includes: acquiring, by the UE, information indicating an offset K, where K is greater than a positive integer equal to 0; the E uplink transmission units are located before the first downlink transmission unit set, and the E uplink transmission units are located, where the first downlink transmission unit set includes a first downlink The transmission unit is shifted forward by K transmission units.
  • the UE acquires information indicating that the network device indicates a delay J, where J is greater than or equal to 0. a positive integer; J is greater than or equal to 1, then the E uplink transmission units before the first downlink transmission unit set include, the first downlink transmission unit set is offset before the E-1 transmission units Uplink transmission unit.
  • the indication method further includes: acquiring, by the UE, information indicating an offset K, where K is greater than A positive integer equal to 0; each of the changed first downlink transmission units includes: before each changed first downlink transmission unit is shifted forward by K transmission units.
  • the UE acquires information indicating that the network device indicates a delay J, where J is greater than or equal to 0.
  • a positive integer the first downlink transmission unit after each change includes: the first downlink transmission unit after each change is forwarded before the J-1 transmission unit.
  • the UE acquires an index, where an index corresponds to a downlink transmission unit set.
  • the UE is configured according to the information indicating the quantity Q received on the one or more downlink transmission units.
  • the receiving response of the Q+1 downlink transmission unit set sent by the uplink transmission unit corresponding to the first downlink transmission unit set includes: the UE according to the indication quantity Q received on the one or more downlink transmission units
  • the information transmits a reception response of the Q+1 downlink transmission unit set on the uplink transmission unit corresponding to the index.
  • the indication method further includes: the UE monitoring whether the uplink transmission unit is idle; And transmitting, by the information indicating the quantity Q received on the one or more downlink transmission units, the receiving response on the uplink transmission unit corresponding to the first downlink transmission unit set, if the uplink transmission unit is idle, the UE And receiving, according to the information of the indicated quantity Q received on the one or more row transmission units, a reception response on an uplink transmission unit corresponding to the first downlink transmission unit set.
  • an indication method comprises: the network device determining information indicating the quantity Wt, wherein Wt is a positive integer greater than or equal to 1; wherein the information indicating the quantity Wt is used to indicate the The network device needs to receive the received response of the set of Wt downlink transmission units; the network device sends the information indicating the quantity Wt to the user equipment UE on one or more downlink transmission units included in the downlink transmission unit set.
  • the receiving response of the Wt downlink transmission unit set that needs to be received includes: a receiving response of a downlink transmission unit set where the current downlink transmission unit is located, and The receiving response of the set of Wt-1 downlink transmission units that the network device has not successfully received in history.
  • the receiving response of the Wt-1 downlink transmission unit set that is not successfully received by the network device in history is not The method includes: the network device is not successfully received, and the network device has received a reception response of the one or more downlink transmission unit sets indicated on one or more downlink transmission units before the downlink transmission unit set.
  • the indicating method further includes: the network device receiving, by using the downlink transmission unit corresponding to the downlink transmission unit set, the Wt downlink sent by the UE a receiving response of the set of transmission units; wherein the one downlink transmission unit set corresponds to one uplink transmission unit.
  • the network device fails to receive one or more downlink transmission unit sets on any one of the consecutive multiple uplink transmission units Receiving the response, the network device, on each of the consecutive uplink transmission units, receiving the received response of the one or more downlink transmission unit sets, all of which are unsuccessful The received response to the set of one or more downstream transmission units.
  • the network device on the downlink transmission unit set, includes one or more downlink transmission units, and further sends an index of the downlink transmission unit set to the UE. Wherein an index corresponds to a set of downlink transmission units.
  • the network device receives, by using an uplink transmission unit corresponding to the downlink transmission unit set, a receiving response of the Wt downlink transmission unit set sent by the UE.
  • the network device includes, on an uplink transmission unit corresponding to the index, a receiving response of a set of Wt downlink transmission units sent by the UE.
  • the sixth aspect provides an indication method, where the indication method includes: the network device acquires information indicating the quantity Q, where Q is a positive integer greater than or equal to 0; wherein the information indicating the quantity Q is used to indicate the The network device needs to receive the received response of the Q+1 downlink transmission unit set; the network device sends the information indicating the quantity Q to the user equipment UE on one or more downlink transmission units included in the downlink transmission unit set. .
  • the receiving response of the Q+1 downlink transmission unit set that needs to be received includes: receiving response of a downlink transmission unit set where the current downlink transmission unit is located And a received response of the set of Q downlink transmission units that the network device has not successfully received in history.
  • the receiving response of the Q-1 downlink transmission unit set that is not successfully received by the network device in history is not The method includes: the network device is not successfully received, and the network device has received a reception response of the one or more downlink transmission unit sets indicated on one or more downlink transmission units before the downlink transmission unit set.
  • the indication method further includes: the network device receiving the Q+1 sent by the UE on an uplink transmission unit corresponding to the downlink transmission unit set. a receiving response of the downlink transmission unit set; wherein the one downlink transmission unit set corresponds to one uplink transmission unit.
  • the network device fails to receive one or more downlink transmission unit sets on any one of the consecutive multiple uplink transmission units Receiving the response, the network device, on each of the consecutive uplink transmission units, receiving the received response of the one or more downlink transmission unit sets, all of which are unsuccessful The received response to the set of one or more downstream transmission units.
  • the network device on the downlink transmission unit set, includes one or more downlink transmission units, and further sends an index of the downlink transmission unit set to the UE. Wherein an index corresponds to a set of downlink transmission units.
  • the network device receives, by using the uplink transmission unit corresponding to the downlink transmission unit set, the Q+1 downlink transmission unit sets sent by the UE.
  • Receiving the response includes: receiving, by the network device, a receiving response of the Q+1 downlink transmission unit sets sent by the UE, on an uplink transmission unit corresponding to the index.
  • the receiving response of the downlink transmission unit set includes one or more of the downlink transmission unit set Receive response of the downlink transmission unit.
  • the downlink transmission unit includes one or more carriers, and the downlink transmission unit sets are received.
  • the response includes a reception response of one or more carriers included in the one or more downlink transmission units included in the downlink transmission unit set.
  • the receiving response comprises a positive acknowledgement ACK and/or a negative acknowledgement NACK.
  • a computer readable storage medium comprising instructions, when executed on a computer, causing the computer to perform one of the above aspects and/or one of the above aspects or A variety of possible implementation methods of indication.
  • a program product comprising instructions that, when executed on a computer, cause the computer to perform one or more of the possible implementations of any of the above aspects and/or any of the above aspects Instructions.
  • a chip comprising: at least two circuits for performing one or more possible implementations of causing a computer to perform any of the above aspects and/or any of the above aspects Indicate method.
  • a chip comprising: a processor and a memory, the memory storing instructions executed by the processor, the instructions comprising causing a computer to perform any of the above aspects and/or any of the above A method of indicating one or more possible implementations of aspects.
  • a chip comprising: a processor, when the processor runs an instruction, causing a computer to perform one or more of the possibilities of causing the computer to perform any of the above aspects and/or any of the above aspects The method of indication of the implementation.
  • a communication device comprising a memory, a processor, and a transceiver; the memory is for storing instructions; the instructions are run on the processor for performing any of the above Aspects and/or methods of indicating one or more possible implementations of any of the above aspects.
  • the communication device may be a network device or a UE.
  • a communication system comprising a network device and a UE, the communication system for performing the indication method of one or more of the possible implementations of any of the above aspects and/or any of the above aspects.
  • the indication method further includes: the UE, according to the information indicating the quantity Wu received on the one or more downlink transmission units, Sending, by the uplink transmission unit corresponding to the first downlink transmission unit set, a reception response of the Wu downlink transmission units.
  • the information indicating the quantity Wu is indicated by a DAI in the downlink control information DCI carried on the one or more downlink transmission units.
  • the method includes: the network device, determining information indicating the quantity Wu, where Wu is a positive integer or 0; wherein the information indicating the quantity Wu is used to indicate that the network device needs to receive The receiving response of the Wu downlink transmission units; the network device transmitting the information indicating the quantity Wu to the user equipment UE on one or more downlink transmission units included in the downlink transmission unit set.
  • the information indicating the quantity Wu is indicated by a DAI in the downlink control information DCI carried on the one or more downlink transmission units.
  • FIG. 1 is a schematic structural diagram of a system of the present application.
  • FIG. 2 is a schematic diagram of another network architecture to which the present application can be applied;
  • FIG. 3 is a schematic structural diagram of a transmission unit of the present application.
  • FIG. 6 is a schematic flow chart of another indication method of the present application.
  • FIG. 7 is a schematic diagram of an indication method of the present application.
  • FIG. 8 is a schematic diagram of another indication method of the present application.
  • FIG. 9 is a schematic diagram of another indication method of the present application.
  • FIG. 10 is a schematic diagram of another indication method of the present application.
  • 11A is a schematic flow chart of another indication method of the present application.
  • 11B is a schematic flow chart of another indication method of the present application.
  • FIG. 13 is a schematic structural diagram of a network device according to the present application.
  • FIG. 14 is a schematic structural diagram of a network device provided by the present application.
  • FIG. 15 is a schematic structural diagram of a UE provided by the present application.
  • FIG. 16 is a schematic structural diagram of a UE provided by the present application.
  • FIG. 17 is a schematic structural diagram of an apparatus 100 provided by the present application.
  • the network device can be any device with wireless transceiver function. Including but not limited to: network devices (eg, network device NodeB, evolved network device eNodeB, network device (gNB) in the fifth generation (5G) communication system, network device or network device in future communication system , an access node in a WiFi system, a wireless relay node, a wireless backhaul node, and the like.
  • the network device may also be a wireless controller in a cloud radio access network (CRAN) scenario.
  • the network device may also be a network device in a 5G network or a network device in a future evolved network; it may also be a wearable device or an in-vehicle device or the like.
  • the network device may also be a small station, a transmission reference point (TRP), or the like.
  • TRP transmission reference point
  • a base station which may also be referred to as a base station device, is a device deployed in a wireless access network to provide wireless communication functions.
  • the name of the base station may be different in different wireless access systems, for example, in a Universal Mobile Telecommunications System (UMTS) network, the base station is called a Node B, and the base station in the LTE network is called An evolved Node B (e.g., eNB or eNodeB) may be referred to as a Transmission Reception Point (TRP) network node or a g-Node B (gNB) in a future 5G system.
  • TRP Transmission Reception Point
  • gNB g-Node B
  • UE User equipment
  • the UE may be a mobile phone, a tablet, a computer with a wireless transceiver function, a virtual reality (VR) UE device, an augmented reality (AR) UE device, and an industrial control (industrial) Wireless UE in control, wireless UE in self driving, wireless UE in remote medical, wireless UE in smart grid, wireless in transport safety UE, wireless UE in smart city, wireless UE in smart home, and the like.
  • VR virtual reality
  • AR augmented reality
  • Wireless UE in control, wireless UE in self driving, wireless UE in remote medical, wireless UE in smart grid, wireless in transport safety UE, wireless UE in smart city, wireless UE in smart home, and the like.
  • the UE may be a device that can communicate with the network device.
  • the UE may also be referred to as a terminal device, an access terminal device, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a wireless communication device, a UE agent, or a terminal device.
  • FIG. 1 is a schematic illustration of a system for use with the present application.
  • system 100 can include network device 102 and UEs 104, 106, 108, 110, 112, and 114 (for convenience of description, UE 104 refers to any of UEs 104, 106, 108, 110, 112, and 114 hereinafter.
  • UE 104 refers to any of UEs 104, 106, 108, 110, 112, and 114 hereinafter.
  • One or more UEs wherein the network device 102 and the UE 104 are connected by wireless.
  • FIG. 1 only illustrates the system as including two network devices, but the application is not limited thereto.
  • the system may further include more network devices; similarly, the system may also include more or less.
  • UE It should also be understood that the system may also be referred to as a network, or a network system, which is not limited in this application.
  • the network architecture diagram may be a network architecture diagram of an NR in a next generation wireless communication system.
  • the network device can be divided into a centralized unit (CU) and multiple Transmission Reception Point (TRP)/Distributed Unit (DU), that is, network equipment.
  • TRP Transmission Reception Point
  • DU Distributed Unit
  • BBU Bandwidth Based Unit
  • the centralized unit 1 and the TRP/DU in the dotted line range are constituent elements of the network device 1
  • the centralized unit 2 and the TRP/DU in the solid line range are constituent elements of the network device 2
  • the network device 1 and Network device 2 is a network device (or referred to as a base station) involved in the NR system.
  • the CU can handle the functions of the wireless high-layer protocol stack, such as the Radio Resource Control (RRC) layer, the Packet Data Convergence Protocol (PDCP) layer, etc., and even support some core network functions to sink and connect.
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • Network access termed as edge computing network, can meet the higher requirements of future communication networks for emerging services such as video, online shopping, virtual/augmented reality for network delay.
  • the DU can mainly handle the layer 2 function with high physical layer function and real-time requirement. Considering the transmission resources of the radio remote unit (RRU) and the DU, the physical layer function of some DUs can be moved up to the RRU. The miniaturization of RRUs, even more aggressive DUs, can be combined with RRUs.
  • CU can be deployed in a centralized manner, DU deployment depends on the actual network environment, core urban area, high traffic density, small station spacing, limited space in the computer room, such as colleges and universities, large-scale performance venues, etc., DU can also be centralized DUs can be deployed in a distributed manner, such as suburban counties and mountainous areas.
  • the S1-C interface exemplified in FIG. 2 may be a standard interface between the network device and the core network, and the device connected to the specific S1-C is not shown in FIG. 2.
  • the transmission unit corresponds to the time domain granularity of the device (including but not limited to the network device and/or the UE) for resource allocation and/or data transmission, or the minimum time unit used by the device for data transmission or data transmission.
  • the transmission unit corresponds to at least one transmission time interval (TTI) or at least one subframe or at least one slot or at least one time domain symbol (symbol).
  • Each of the TTIs included in the transmission unit may be a complete TTI (ie, occupying all time domain resource transmission information corresponding to the TTI), or may be part of the TTI (ie, occupying part of the time domain resource transmission information corresponding to the TTI, and In addition, some of the time domain resources are reserved as idle.
  • the slot may be a 1 ms slot, or a sub-frame, and has a length of 1 ms. It may also be shorter than 1 ms.
  • the slot may correspond to 14 time domain symbols, or may correspond to less than 14 time domain symbols. When less than 14 time domain symbols are included, the slot corresponds to a short transmission time interval (short TTI, sTTI), and the slot is at this time.
  • a transmission unit may include one or more carriers (or component carriers (CCs)), and these carriers may include a corresponding primary cell (or a primary serving cell).
  • the carrier of the PCell)) may further include one or more carriers of the secondary serving cell (SCell).
  • the network device sends data and/or control information to the UE on the downlink transmission unit, and the UE transmits data and/or control information to the network device on the uplink transmission unit.
  • the plurality of downlink transmission units may form a downlink transmission unit set, and one downlink transmission unit set includes at least one downlink transmission unit.
  • FIG. 4 is a schematic flowchart of a downlink retransmission indication method.
  • the network device sends data and/or control information to the UE on the downlink transmission unit.
  • the UE determines whether the data and/or control information is successfully received.
  • S103. The UE sends a reception response. If the UE successfully receives the data and/or control information, the uplink transmission unit, such as a physical uplink control channel (PUCCH)/physical uplink shared channel (PUSCH), may be used to the network device.
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • the UE may send an unsuccessfully received reception response, such as a NACK, to the network device through the uplink transmission unit. S104. If the UE successfully sends a receiving response, the network device determines, according to the receiving response, whether the data and/or control information is successfully received by the UE. For example, if the network device receives an ACK, the network device determines that the data and/or control information was successfully received by the UE 102 and no longer transmits the data and/or control information. If the network device receives a NACK, the network device can resend the data and/or control information.
  • a NACK the network device can resend the data and/or control information.
  • the network device may also send control information of the data and/or control information for indicating how the UE sends the reception response.
  • the control information may be sent on the same downlink transmission unit as the data and/or control information indicated by the control information, or may not be sent on the same downlink transmission unit, may be sent in the same information or signaling, or may not be in the same signaling. send. Can be sent at the same time or at different times. None of the above applications is limited.
  • the receiving response in this application may be a receiving response of a carrier, may be a receiving response of a downlink transmission unit, or may be a receiving response of a downlink transmission unit set.
  • the downlink transmission unit set is a set of downlink transmission units that the network device schedules to the UE, and the HARQ response corresponding to the data carried in the downlink transmission unit is located in the same uplink transmission unit.
  • the determining of the uplink transmission unit may be indicated by the network device.
  • the network device indicates, on each downlink transmission unit of the downlink transmission unit set, the signaling on which uplink transmission unit the UE feeds back corresponding to the The HARQ response of the downlink transmission unit, where the signaling may be downlink control information (DCI) or other signaling.
  • DCI downlink control information
  • the Downlink Assignment Index (DAI) field in the DCI signaling may indicate how many downlink transmissions require feedback, and then indicate how many bits, and then how many bits the UE will feed back. It may also be indicated by a field PDSCH-to-HARQ_feedback timing indicator as defined in the DCI format in 38.213. Further, when the UE receives the DCI including the PDSCH-to-HARQ_feedback timing indicator indication in the nth downlink transmission unit, And scheduling the downlink transmission of the UE, the UE feeding back the HARQ response of the downlink transmission in an uplink transmission unit located in the n+k transmission units according to the value k indicated by the PDSCH-to-HARQ_feedback timing indicator.
  • DCI Downlink Assignment Index
  • the network device can indicate the configuration mode in a pre-configured manner, for example, by using a TDD configuration mode in the LTE, the network device notifies the TDD configuration configuration information in the system message, and the UE can learn each according to the configuration indication.
  • the pre-configuration may also be indicated by other means, for example, using common control information (group common DCI) and/or Or the high-level configuration information RRC signaling notifies the UE of the pre-configured configuration information.
  • the UE can learn in which uplink transmission unit the HARQ response corresponding to the downlink transmission in each downlink transmission unit should be transmitted.
  • the default mechanism may also be adopted.
  • the corresponding relationship between the downlink transmission unit and the uplink transmission unit where the corresponding HARQ response is located may also adopt other manners, which are not specifically limited in the present invention.
  • the receiving responses of multiple downlink transmission units can be transmitted on the same uplink transmission unit.
  • the UE downlink transmission unit set is a granular feedback receiving response.
  • the network device needs the UE to resend the reception response. If the UE is not defined to resend the reception response, it may cause confusion or error in subsequent communication, wasting communication resources.
  • the UE does not successfully send the receiving response, and the UE does not send the receiving response and/or the receiving response sent by the UE is not successfully received by the network device.
  • the network device does not successfully receive the receiving response, including the network device not receiving the receiving response and/or the receiving response received by the network device cannot be correctly parsed. If the network device and/or the UE are deployed in a system of unlicensed spectrum, the UE first monitors whether the unlicensed spectrum is idle (for example, whether the uplink transmission unit is idle) before transmitting the reception response, and does not send a reception response if it is not idle. This mechanism of sending after the first monitoring is called Listening Before Talk (LBT).
  • LBT Listening Before Talk
  • the network device or the UE does not always send the reception response in time, which is more likely to cause confusion or error of subsequent transmission. For example, when the receiving response of the previous downlink transmission unit set is not transmitted by the UE, the UE needs to send the receiving response of the current downlink transmission unit set, and the UE does not know how the two receiving responses need to be sent.
  • the indication method provided by the present application is sent on which uplink transmission unit by indicating whether the UE has several downlink transmission unit sets and/or which downlink transmission unit sets are received. It avoids the problem that communication is confusing when the receiving response is not sent, or when it is not successfully received by the network device. It should be understood that a set of downlink transmission units in this application can be understood as a feedback window, or a window.
  • FIG. 5 is a schematic flow chart of an indication method of the present application. As shown in Figure 5: the indication method includes:
  • the UE receives information indicating the quantity Wt sent by the network device on one or more downlink transmission units included in the first downlink transmission unit set.
  • Wt is a positive integer greater than or equal to 1. It should be understood that Wt may also be a negative integer, 0, etc., and the application does not limit it. When it is 0, it may indicate that the receiving response of the current downlink transmission unit set is not transmitted, or needs to wait for indication of other signaling to perform transmission.
  • the information for indicating the quantity Wt is used to instruct the UE to send a receiving response of the Wt downlink transmission unit set on the uplink transmission unit corresponding to the first downlink transmission unit set. As shown in FIG.
  • the UE receives the information indicating the number Wt sent by the network device on the two downlink transmission units included in the downlink transmission unit set 1, and on the transmission units 1 and 2; the UE may further include the downlink transmission unit set 2 A downlink transmission unit, on the transmission unit 4, receives information indicating the number Wt sent by the network device.
  • the foregoing content mainly describes how the UE knows that there are several downlink transmission unit sets that need feedback.
  • it may also indicate that there are WU downlink transmission units that need feedback, for example, DCI signaling may be used to indicate the reception of the WU downlink transmission units.
  • the response requires feedback.
  • the number of the downlink transmission units that need to be fed back in the one or more downlink transmission unit sets, or the number of information bits included in the reception response corresponding to the one or more downlink transmission unit sets (which may be called HARQ-
  • the number of bits of the ACK feedback codebook, etc. can be determined according to the relevant indication in the DCI signaling.
  • the DAI field in DCI signaling as defined in the LTE/NR system can be used.
  • the DAI field includes a count counter DAI and a total total DAI indication.
  • the indication of the DAI field should be updated in combination with the number of required transmission downlink unit sets Wt.
  • the total DAI is used to indicate the number of total downlink transmission units (Wu) that the UE needs to respond to, which is equal to the sum of the number of downlink transmission units included in the downlink transmission unit set that needs to respond.
  • the counter DAI can also be updated in combination with the number of downlink unit sets Wt that need to respond.
  • the indication method provided by the present application is performed by instructing the UE to send the reception of several downlink transmission unit sets and on which uplink transmission unit.
  • the problem that the communication is confusing when the UE does not send and receive a response or the received response is not successfully received by the network device is avoided.
  • the error rate of the entire communication system is reduced, and the communication quality and efficiency are improved.
  • the UE monitors whether the uplink transmission unit is idle. If it is idle, S503 is executed, and if it is not idle, S503 is not executed. Generally, the UE first monitors whether the uplink transmission unit (eg, unlicensed spectrum, unlicensed channel) is idle before transmitting the signal.
  • the busy idle state can be determined by the size of the received power on the unlicensed spectrum/channel. If the received power is less than a certain threshold, the unlicensed spectrum/channel is considered to be in an idle state, and the signal can be sent on the unlicensed spectrum/channel. Otherwise, no signal is sent.
  • the UE sends a receiving response of the Wt downlink transmission unit set on the uplink transmission unit corresponding to the first downlink transmission unit set according to the information of the indication quantity Wt received on the one or more downlink transmission units. . If the first downlink transmission unit set includes at least two downlink transmission units, the UE is based on the information indicating the number Wt received on the last downlink transmission unit included in the first downlink transmission unit set. And receiving, by the uplink transmission unit corresponding to the first downlink transmission unit set, a reception response of the Wt downlink transmission unit set. As shown in FIG.
  • the downlink transmission unit set 4 includes three downlink transmission units (transmission units 7, 9 and 10), and the UE receives the last downlink transmission unit included in the downlink transmission unit set 4, that is, on the transmission unit 10.
  • the information indicating the number Wt transmits the reception response of the two downlink transmission unit sets, that is, the reception response of the downlink transmission unit sets 3 and 4, on the uplink transmission unit (transmission unit n) corresponding to the downlink transmission unit set 4.
  • the probability that the UE does not successfully send a reception response increases.
  • the network device indicates in the subsequent transmission which of the downlink transmission unit sets of the UE is received, which uplink transmission unit should be sent, thereby avoiding communication confusion and improving communication quality and effectiveness.
  • the Wt downlink transmission unit set is the first downlink transmission unit set.
  • the received response of the downlink transmission unit set 1 is transmitted.
  • the received response of the Wt downlink transmission unit set includes: a first set of received responses and a a receiving response of the first set; the received response of the first set includes a received response of the first set of downlink transmission units; and the received response of the third set includes a received response of a set of Wt-1 downlink transmission units;
  • the receiving response of the set of Wt-1 downlink transmission units includes: the network device indicating a response of the set of Wt-1 downlink transmission units sent by the UE in the E uplink transmission units; wherein the E The uplink transmission unit is located before the first downlink transmission unit set, and E is less than or equal to Wt-1.
  • the E uplink transmission units are determined in chronological order (reverse order).
  • the UE searches for the uplink transmission unit forward (in a certain order).
  • the certain order may be determined in chronological order.
  • the time sequence determined herein may be determined in reverse chronological order, that is, the uplink transmission unit that is closest to the first downlink transmission unit set before the first downlink transmission unit set, that is, the last scheduled uplink in time. Transmission unit. If the number of received responses of the downlink transmission unit set that the UE needs to transmit on the uplink transmission unit is less than Wt-1, then forward, that is, search for the upper and lower transmission units before the last scheduled uplink transmission unit in time.
  • the receiving response of the downlink transmission unit set that the UE needs to transmit is several, and which ones.
  • the number of responses of the downlink transmission unit set that the UE needs to transmit on the uplink transmission unit that is forward-looking forward is Wt-1 (where the repeated downlink transmission unit set is only counted once), the uplink transmission unit is no longer looked forward.
  • Forward refers to the time before the set of downlink transmission units. Taking FIG. 10A as an example, it can be considered that the transmission unit 7 precedes the transmission units 8, 9 and 10, the transmission unit 8 precedes the transmission units 9 and 10, and the transmission unit 9 precedes the transmission unit 10.
  • the transmission unit 11 is first found, and if the transmission unit 11 needs to transmit the downlink transmission unit set, the number of reception responses is smaller than Wt. -1, then find the transmission unit in reverse order in chronological order.
  • the downlink transmission unit set 3 includes three downlink transmission units (transmission units 8, 9 and 10), and the information of the indication quantity Wt received by the UE on the transmission units 8, 9 and 10 is the same, that is, Wt All the same, are equal to 2. Then, the received response of the two downlink transmission unit sets includes: a reception response of the first set and a reception response of the third set.
  • the first set is a downlink transmission unit set 3.
  • the received response of the third set therefore includes a received response of one set of downlink transmission units.
  • the number of downlink transmission unit sets indicating that the response needs to be 2 is set, that is, the sets 1 and 3, and the DAI indication in the downlink transmission unit set 3 is also adjusted/updated, that is, in the transmission.
  • the indication of the number of response bits in the transmission unit set can be implemented in the above manner in the present invention, and details are not described herein again.
  • other adjustments may be made to the existing DAI mechanism for the indication of the number of response bits in the set, which is not limited in the present invention.
  • the received response of the Wt downlink transmission unit set includes a first set of reception responses, a receiving response of the second set and a receiving response of the third set; wherein, the receiving response of the first set includes a receiving response of the first downlink transmission unit set; and the receiving response of the second set includes A downlink Receiving a response of the set of transmission units, the receiving response of the set of A downlink transmission units includes: the network device instructing the UE to perform an uplink before the changed first downlink transmission unit in the B times of the change a receiving response of the C downlink transmission unit sets sent by the transmission unit, where A, B, and C are integers greater than or equal to 1, B is less than or equal to A, C is less than or equal to A; and the third set includes D a receiving response of the downlink transmission unit set, the receiving response of the D downlink transmission unit sets, the network device instructing the UE to send in the E
  • an uplink transmission unit before the first downlink transmission unit after each change of the B times may include: a latest uplink transmission before the first downlink transmission unit after each change of the B times. unit.
  • the UE is in the process of identifying which downlink transmission unit sets the reception response is a reception response that needs to be sent. (in chronological order, such as chronological reverse order) looking forward for the uplink transmission unit.
  • the UE looks for a receiving response of the downlink transmission unit set that the UE needs to transmit in an uplink transmission unit before (the most recent) of the first downlink transmission unit after each change of the B times, and which are the .
  • the downlink transmission unit set is no longer sought.
  • the uplink transmission is not forwarded. unit.
  • Wt on all downlink transmission units (transmission units 15, 16 and 18) in the downlink transmission unit set 5 changes once, that is, from 3 on the transmission unit 15, 16 to on the transmission unit 18. 5.
  • the receiving response of the five downlink transmission unit sets includes a first set of received responses, a second set of received responses, and a third set of received responses.
  • the receiving response of the first set includes a receiving response of the downlink transmission unit set 5.
  • the network device instructs the UE to send two downlink transmission units in an uplink transmission unit (transmission unit 17) before the changed first downlink transmission unit (transmission unit 18) in the last change.
  • the received response of the set that is, the received response of the downlink transmission unit sets 2 and 4.
  • the received response of the second set includes a received response of two sets of downlink transmission units.
  • the network device indicates the receiving response of the two downlink transmission unit sets sent by the UE in one uplink transmission unit before the downlink transmission unit set 5, that is, the reception response of the downlink transmission unit sets 1 and 3. Therefore, the third set includes two Receive response of the set of downlink transmission units.
  • the receiving response of the five downlink transmission unit sets that is, the reception response of the downlink transmission unit set 1-5, is transmitted in the uplink transmission unit (transmission unit 21) corresponding to the downlink transmission unit set 5.
  • the UE when the UE recognizes which of the downlink transmission unit sets the reception response is a reception response that needs to be transmitted, the UE acquires by looking forward to the uplink transmission unit. If the UE obtains the information indicating the offset K, the UE needs to look forward to the K transmission units before looking for the uplink transmission unit, and then look for the uplink transmission unit. It can be understood that the UE may also obtain information that the network device indicates the delay J. Due to the limitation of the processing capability of the network device, the network device has an indication delay J (or a processing delay). If the network device fails to receive the reception response on the transmission unit n, the UE cannot be immediately indicated, and the transmission can be performed at the earliest. The unit n+J indicates that if the transmission unit n+J is not a downlink transmission unit, it is indicated on the most recent downlink transmission unit after the transmission unit n+J.
  • the E uplink transmission units before the first downlink transmission unit set include: the first downlink transmission unit set is offset by E before the K transmission units Uplink transmission unit.
  • the first downlink transmission unit (transmission unit 12) included in the unit set 4 is forwardly shifted by one downlink transmission unit transmitted from one uplink transmission unit (transmission unit 7) before three transmission units (which are transmission units 9)
  • the received response of the set that is, the reception of the downlink transmission unit set 1.
  • the E uplink transmission units before the first downlink transmission unit set include,
  • the first downlink transmission unit set is offset forward by E uplink transmission units before J-1 transmission units.
  • the first downlink transmission unit (transmission unit 12) included in the unit set 4 is forward shifted by one downlink transmitted in one uplink transmission unit (transmission unit 7) before 4-1 transmission units (which are transmission units 9).
  • the receiving response of the set of transmission units that is, the reception of the downlink transmission unit set 1.
  • the first downlink transmission unit after each change includes: the first downlink transmission unit after each change is forwarded before the K transmission unit.
  • the downlink transmission unit set 3 includes three downlink transmission units (transmission units 8, 9 and 10), and in the downlink transmission unit set 3, Wt changes once.
  • the network device instructs the UE to transmit in the first uplink transmission unit (transmission unit 7) before the first downlink transmission unit (transmission unit 9) after one change is shifted forward by one transmission unit
  • the reception response of one downlink transmission unit set that is, the reception response of the downlink transmission unit set 1.
  • each changed first downlink transmission unit includes: the first downlink transmission unit after each change Before shifting forward J-1 transmission unit.
  • the downlink transmission unit set 3 includes three downlink transmission units (transmission units 8, 9 and 10), and in the downlink transmission unit set 3, Wt changes once.
  • the network device instructs the UE to shift in the first uplink transmission unit (transmission unit 7) before the first downlink transmission unit (transmission unit 9) after one change is shifted forward by 2-1 transmission units, The received response of the set of one downlink transmission unit, that is, the reception response of the downlink transmission unit set 1.
  • the network device instructs the UE to be in an uplink transmission unit (transmission unit 9-2) indicated by the first downlink transmission unit (transmission unit 9) after one change is subtracted from J.
  • the received response of the set of one downlink transmission unit that is, the reception response of the downlink transmission unit set 1.
  • the 503 is configured to send, by the UE, a reception response of the Wt downlink transmission unit set on the uplink transmission unit corresponding to the index according to the information indicating the number Wt received on the one or more downlink transmission units.
  • the UE may receive an index of the set of downlink transmission units on one or more downlink transmission units, which may be the same as or different from one or more downlink transmission units that transmit information indicating the number Wt.
  • the UE may acquire the index in advance.
  • the indication method provided by the application further increases the accuracy of the indication method and improves the communication quality and efficiency by acquiring the index by the UE.
  • the indication method includes:
  • the network device determines information indicating the quantity Wt, where Wt is a positive integer greater than or equal to 1, wherein the information indicating the quantity Wt is used to indicate the receiving of the Wt downlink transmission unit sets that the network device needs to receive.
  • the receiving response of the set of Wt downlink transmission units that needs to be received includes: a receiving response of the downlink transmission unit set in which the current downlink transmission unit is located, and Wt-1 times that the network device has not successfully received in history Receive response of the set of downlink transmission units.
  • the receiving response of the Wt-1 downlink transmission unit set that the network device has not successfully received in history does not include: the network device is not successfully received, and the network device is already in front of the downlink transmission unit set.
  • the reception response of the downlink transmission unit set in which the current downlink transmission unit is located is the reception response of the downlink transmission unit set 4
  • the receiving response of the downlink transmission unit set that the network device has not successfully received in history includes the downlink transmission unit sets 1 and 2, but because the network device is already in the downlink transmission unit set 4 before the downlink transmission unit (transmission units 4 and 5)
  • the received response of the downlink transmission unit set 1 is indicated above. Therefore, the network device does not instruct the UE to transmit the reception response of the downlink transmission unit set 1 on the downlink transmission unit 7.
  • the network device sends the information indicating the quantity Wt to the user equipment UE on one or more downlink transmission units included in the downlink transmission unit set.
  • the network device receives, according to the uplink transmission unit corresponding to the downlink transmission unit set, a reception response of the Wt downlink transmission unit set sent by the UE, where the one downlink transmission unit set corresponds to one Uplink transmission unit.
  • the network device on the downlink transmission unit set, includes one or more downlink transmission units, and further sends an index of the downlink transmission unit set to the UE, where an index corresponds to a downlink transmission unit set. .
  • the network device receives a receiving response of the Wt downlink transmission unit sets sent by the UE on an uplink transmission unit corresponding to the index.
  • the indication method provided by the application is sent by the network device to take an index, which further increases the accuracy of the indication method and improves communication quality and efficiency.
  • the network device fails to receive the reception response of one or more downlink transmission unit sets on any one of the consecutive uplink transmission units, the network device is in the continuous multiple
  • the received response of one or more downlink transmission unit sets that need to be received on each of the uplink transmission units is a reception response of one or more downlink transmission unit sets that are not successfully received.
  • the continuation herein refers to the case where the downlink transmission unit is not inserted in the immediate vicinity. Taking FIG. 9A as an example, transmission units 3 and 4 are considered to be consecutive uplink transmission units, and transmission units 4 and 8 are not considered to be consecutive uplink transmission units.
  • the network device does not successfully receive the receiving response of the downlink transmission unit set 1 on the transmission unit 3, and the network device successfully receives the reception response of the downlink transmission unit set 2 on the transmission unit 4.
  • the transmission units 3 and 4 before the transmission unit 5 are two consecutive uplink transmission units.
  • the network network device does not successfully receive the reception response of one downlink transmission unit set, and the network device prevents
  • the indication method provided by the application indicates that the receiving device needs to receive the received downlink transmission unit set by the network device, and avoids the problem that the communication response is confusing when the receiving response is not sent by the UE or is not successfully received by the network device.
  • the error rate of the entire communication system is reduced, and the communication quality and efficiency are improved.
  • the length of time resources occupied by the downlink transmission unit and the transmission unit may be the same or different. Due to space limitations, the downlink transmission unit set is referred to as "set". For the reason of the drawing, a downlink transmission unit set seems to include the transmission unit, but it should be understood that the downlink transmission unit set in the present application includes only the downlink transmission unit, and does not include the uplink transmission unit. In FIG. 7 to FIG.
  • the total number of downlink transmission unit sets that need to be fed back is 1, and the reception response of one downlink transmission unit set needs to be transmitted.
  • a transmission unit 1 and a transmission unit 2 form a downlink transmission unit set 1
  • a transmission unit 4 constitutes a downlink transmission unit set 2
  • a transmission unit 5 constitutes a downlink transmission unit set. 3.
  • the transmission unit 7, the transmission unit 9 and the transmission unit 10 constitute a downlink transmission unit set 4.
  • the uplink transmission unit 1 corresponding to the downlink transmission unit set 1 is the transmission unit 3
  • the uplink transmission unit 2 corresponding to the downlink transmission unit set 2 is the transmission unit 6
  • the uplink transmission unit 3 corresponding to the downlink transmission unit set 3 is the transmission unit 8, and the downlink transmission is performed.
  • the uplink transmission unit 4 corresponding to the unit set 4 is a transmission unit n, and n is a positive integer greater than or equal to 1.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 1 on the transmission unit 3.
  • the UE successfully transmits a reception response of two sets of downlink transmission units on the transmission unit 6.
  • the network device does not successfully receive the reception response sent by the UE on the transmission unit 8.
  • the network device since the network device transmits the indicated amount of information on the transmission unit 5, the network device does not receive the reception of the two downlink transmission unit sets transmitted by the UE on the transmission unit 6, and thus cannot Determine if the receiving response can be successfully received. Therefore, the network device can set Wt equal to 2.
  • the UE successfully transmits the reception response of the downlink transmission unit set 1 on the transmission unit 3.
  • the network device fails to receive the receiving response of the two downlink transmission unit sets sent by the UE on the transmission unit 6.
  • Set 1, the downlink transmission unit set, 2 and the downlink transmission unit set 4 receive response.
  • FIG. 8 is a schematic diagram of another indication method of the present application.
  • the transmission unit 1 constitutes a downlink transmission unit set 1
  • the transmission unit 2 constitutes a downlink transmission unit set 2
  • the transmission unit 4 and the transmission unit 5 constitute a downlink transmission unit set 3
  • a transmission unit 7, a transmission unit 9, and a transmission unit. 10 constitutes a downlink transmission unit set 4.
  • the network device fails to receive the receiving response of the downlink transmission unit set 1 transmitted by the UE on the transmission unit 3.
  • the UE successfully transmits a reception response of one downlink transmission unit set on the transmission unit 6, that is, successfully transmits the reception response of the downlink transmission unit set 2.
  • the network device fails to receive the UE receiving and receiving response on the transmission unit 8.
  • the network device fails to receive the reception response of the downlink transmission unit set sent by the UE on the transmission unit 6, that is, the reception response of the downlink transmission unit set 2 is not successfully received.
  • Receive response of unit set 2 and downlink transmission unit set 4. Since the reception response of the downlink transmission unit set 1 has been scheduled in the indication information transmitted by the transmission units 4 and 5, on the transmission unit 7, wt 2.
  • the UE successfully transmits the reception response of the two downlink transmission unit sets on the transmission unit 8, that is, the reception response of the downlink transmission unit set 1 and the downlink transmission unit set 3 is successfully transmitted.
  • the network device fails to successfully receive the receiving response of one downlink transmission unit set sent by the UE on the transmission unit 6, that is, successfully transmits the receiving response of the downlink transmission unit set 2.
  • the UE successfully transmits the reception response of the two downlink transmission unit sets on the transmission unit 8, that is, the reception response of the downlink transmission unit set 1 and the downlink transmission unit set 3 is successfully transmitted.
  • the network device fails to successfully receive the receiving response of one downlink transmission unit set sent by the UE on the transmission unit 6, that is, successfully transmits the receiving response of the downlink transmission unit set 2.
  • the network device fails to receive the receiving response of the two downlink transmission unit sets sent by the UE on the transmission unit 8, that is, the receiving response of the downlink transmission unit set 1 and the downlink transmission unit set 3 is not successfully received.
  • the downlink transmission unit set 2, the downlink transmission unit set 3 and the downlink transmission unit set 4 receive responses.
  • the transmission unit 1 constitutes a downlink transmission unit set 1
  • the transmission unit 2 constitutes a downlink transmission unit set 2
  • the transmission unit 6 and the transmission unit 5 constitute a downlink transmission unit set 3
  • 10 constitutes a downlink transmission unit set 4.
  • the uplink transmission unit 1 corresponding to the downlink transmission unit set 1 is the transmission unit 3
  • the uplink transmission unit 2 corresponding to the downlink transmission unit set 2 is the transmission unit 4
  • the uplink transmission unit 3 corresponding to the downlink transmission unit set 3 is the transmission unit 8, and the downlink transmission is performed.
  • the uplink transmission unit 4 corresponding to the unit set 4 is a transmission unit n, and n is a positive integer greater than or equal to 1.
  • the network device fails to receive the receiving response of the downlink transmission unit set 1 transmitted by the UE on the transmission unit 3.
  • the UE successfully transmits the reception response of the downlink transmission unit set 2 on the transmission unit 4.
  • the network device sends the indicated quantity of information on the transmission units 5 and 6.
  • the network device may feedback the reception response of the downlink transmission unit set 2 corresponding to the transmission unit 4, or may not determine which transmission unit corresponding to the transmission unit needs to be re-feedback. Therefore, the network device transmits an indication of the number of pieces of information on the transmission units 5 and 6, indicating that the UE needs to transmit a reception response of the three sets of downlink transmission units.
  • the network device fails to receive the reception response of the downlink transmission unit sets 1, 2 and 3 transmitted by the UE on the transmission unit 8.
  • the UE successfully transmits the reception response of the downlink transmission unit sets 1, 2 and 3 on the transmission unit 8.
  • the UE successfully transmits the reception response of the downlink transmission unit set 1 on the transmission unit 3.
  • the network device fails to receive the receiving response of the downlink transmission unit set 2 transmitted by the UE on the transmission unit 4.
  • the network device transmits the indicated number of information on the transmission units 5 and 6, indicating that the UE needs to transmit the reception response of the three downlink transmission unit sets, that is, the reception response of the downlink transmission unit sets 1, 2 and 3.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 1 transmitted by the UE on the transmission unit 3.
  • the network device fails to receive the receiving response of the downlink transmission unit set 2 transmitted by the UE on the transmission unit 4.
  • the network device transmits the indicated number of information on the transmission units 5 and 6, indicating that the UE needs to transmit the reception response of the three downlink transmission unit sets, that is, the reception response of the downlink transmission unit sets 1, 2 and 3.
  • the network device fails to receive the reception response of the downlink transmission unit sets 1, 2 and 3 transmitted by the UE on the transmission unit 8.
  • the UE successfully transmits the reception response of the downlink transmission unit sets 1, 2 and 3 on the transmission unit 8.
  • 10 is a schematic diagram of another indication method of the present application, in conjunction with the description in any of FIGS. 7-9.
  • 10 is a schematic diagram of an indication method of the present application, as described in connection with any of FIGS. 7-9.
  • the transmission units 1, 2 and 3 constitute a downlink transmission unit set 1
  • the transmission units 4, 5 and 6 constitute a downlink transmission unit set 2
  • the transmission units 8, 9 and 10 constitute a downlink transmission unit set 3
  • the transmission unit 12 And 13 constitute a downlink transmission unit set 4
  • the transmission units 15, 16 and 18 constitute a downlink transmission unit set 5
  • the transmission units 19 and 20 constitute a downlink transmission unit set 6.
  • the uplink transmission unit 1 corresponding to the downlink transmission unit set 1 is the transmission unit 7
  • the uplink transmission unit 2 corresponding to the downlink transmission unit set 2 is the transmission unit 11
  • the uplink transmission unit 3 corresponding to the downlink transmission unit set 3 is the transmission unit 14, and the downlink transmission is performed.
  • the uplink transmission unit 4 corresponding to the unit set 4 is the transmission unit 17, the uplink transmission unit 5 corresponding to the downlink transmission unit set 5 is the transmission unit 21, and the uplink transmission unit 6 corresponding to the downlink transmission unit set 6 is the transmission unit 22.
  • the information indicating the offset K is equal to 0, that is, the network device does not indicate the delay.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 1 on the transmission unit 7.
  • the network device can immediately re-instruct the transmission unit 8, that is, the transmission unit 8 indicates that the UE is in the transmission unit 14.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 2 on the transmission unit 11.
  • the network device can immediately re-instruct the transmission unit 12, that is, the transmission unit 12 indicates that the UE is in the transmission unit 17
  • the network device failed to receive the reception response of the downlink transmission unit sets 1 and 3 on the transmission unit 14.
  • the network device can immediately re-instruct the transmission unit 15, that is, the transmission unit 15 indicates that the UE is transmitting.
  • the network device fails to successfully receive the reception response of the downlink transmission unit sets 2 and 4 on the transmission unit 17.
  • the network device can immediately re-instruct the transmission unit 18, that is, the transmission unit 18 is instructed to transmit the UE.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 1 on the transmission unit 7. For the receiving response of the downlink transmission unit set 1 transmitted by the UE that is not successfully received on the transmission unit 7, the network device cannot immediately re-instruct the transmission unit 8, and the Wt indicated on the transmission unit 8 is still 1.
  • the network device can indicate on the transmission unit 7+2 that the UE needs to transmit the reception response of the two downlink transmission unit sets, that is, in the transmission unit 9, the UE is instructed to feedback the reception response of the downlink transmission unit sets 1 and 3 at the transmission unit 14.
  • the reception response of one downlink transmission unit set that is, the reception response of the downlink transmission unit set 1.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 2 on the transmission unit 11. For the receiving response of the downlink transmission unit set 2 transmitted by the UE that is not successfully received on the transmission unit 11, the network device cannot immediately re-instruct the transmission unit 12, and the Wt indicated on the transmission unit 12 is still 1.
  • the network device can indicate on the transmission unit 11+2 that the UE needs to send the reception response of the two downlink transmission unit sets, that is, in the transmission unit 13, the UE is in the transmission unit 17, and the reception response of the downlink transmission unit sets 2 and 4 is performed. Feedback.
  • the received response of one set of downlink transmission units that is, the received response of the downlink transmission unit set 2.
  • the network device failed to receive the reception response of the downlink transmission unit sets 1 and 3 on the transmission unit 14.
  • the network device cannot immediately re-instruct the transmission unit 15, and the Wt indicated on the transmission unit 15 is still 1 .
  • the network device can indicate on the transmission unit 14+2 that the UE needs to send a reception response of the three downlink transmission unit sets, that is, in the transmission unit 16, the UE is in the transmission unit 21, and the downlink transmission unit sets 1, 3 and 5 are received. The response is fed back.
  • the received response of the two sets of downlink transmission units that is, the reception responses of the downlink transmission unit sets 1 and 3.
  • the network device fails to successfully receive the reception response of the downlink transmission unit sets 2 and 4 on the transmission unit 17.
  • the network device cannot immediately re-instruct the transmission unit 18, and the Wt indicated on the transmission unit 18 is still 3 .
  • the network device can indicate on the transmission unit 17+2 that the UE needs to transmit the reception response of the three downlink transmission unit sets, that is, in the transmission unit 19, the UE is in the transmission unit 22, and the downlink transmission unit sets 2, 4 and 6 are received. The response is fed back.
  • the uplink transmission unit (transmission unit 17) needs to receive feedback responses of the two downlink transmission unit sets, that is, the reception responses of the downlink transmission unit sets 2 and 4.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 1 on the transmission unit 7.
  • the network device cannot immediately re-instruct the transmission unit 8, 9, 10 on the transmission units 8, 9 and 10.
  • the indicated Wt is still 1.
  • the transmission unit 7+4 is an uplink transmission unit
  • the network device can first indicate on the transmission unit 12 that the UE needs to transmit a reception response of two sets of downlink transmission units, that is, in the transmission unit 12, the UE is in the transmission unit 15
  • the received responses of the downlink transmission unit sets 1 and 4 are fed back.
  • the unit (transmission unit 7) needs to receive a received response of one downlink transmission unit set, that is, a reception response of the downlink transmission unit set 1.
  • the network device fails to successfully receive the reception response of the downlink transmission unit set 2 on the transmission unit 11.
  • the network device cannot immediately re-instruct the transmission unit 12, and the Wt indicated on the transmission unit 12 is still 2. Meanwhile, since the transmission unit 11+4 is an uplink transmission unit, the network device can first indicate on the transmission unit 16 that the UE needs to transmit a reception response of two sets of downlink transmission units.
  • the UE acquires the uplink transmission unit corresponding to the downlink transmission unit set 5 according to the last downlink transmission unit (transmission unit 18) (transmission unit 21)
  • the receiving response of the set of 3 downlink transmission units is transmitted.
  • the received response of one downlink transmission unit set that needs feedback that is, the reception response of the downlink transmission unit set 3.
  • the receiving response of the UE acquiring another set of downlink transmission units is that the first downlink transmission unit (transmission unit 16) of the downlink transmission unit set 5 needs to be offset by the uplink transmission unit (transmission unit 11) before the three transmission units are forwarded.
  • the received response of the set of one downlink transmission unit that is, the reception response of the downlink transmission unit set 2.
  • the UE needs to send a total of three downlink transmission unit sets of reception responses, that is, downlink transmission unit sets 2, 3 and 5.
  • the uplink transmission unit (transmission unit 15) before shifting the three transmission units needs to receive the reception responses of the two downlink transmission unit sets, that is, the reception responses of the downlink transmission unit sets 1 and 4.
  • the UE needs to transmit a total of three downlink transmission unit sets, that is, downlink transmission unit sets 1, 4 and 6.
  • the indication method includes:
  • the UE receives a bitmap sent by the network device on one or more downlink transmission units included in the downlink transmission unit set.
  • the bitmap can also be called a bit map.
  • the bit map is used to instruct the UE to send a receiving response of one or more downlink transmission unit sets on an uplink transmission unit corresponding to the downlink transmission unit set.
  • the number of the maximum downlink transmission unit set supported by the network device is M, where M is a positive integer greater than or equal to 1, and the number of bits of the bitmap is M.
  • One bit of the bitmap is used to indicate whether the UE sends a receiving response of a downlink transmission unit set.
  • the number of information bits (which may also be referred to as the number of bits of the HARQ-ACK feedback codebook, etc., which may also be referred to as HARQ-ACK feedback codebook) in the received response corresponding to each downlink transmission unit set may be determined according to relevant indications in the DCI signaling.
  • the DAI field defined in the LTE/NR system specifically, the DAI field includes a counter DAI and a total DAI indication.
  • the indication of the DAI field should be updated in combination with the total number of downlink transmission unit sets that need to be responded.
  • the total DAI is used to indicate the total number of downlink transmission units that the UE needs to respond to.
  • the number is equal to the sum of the number of downlink transmission units included in the corresponding one or more downlink transmission unit sets.
  • the UE receives the bitmap 0001 on the downlink transmission unit 1 included in the downlink transmission unit set.
  • the last bit of the bitmap is used to indicate whether the UE sends the receiving response of the downlink transmission unit set 1.
  • the last bit of the bitmap is 1, it is used to instruct the UE to send the downlink response unit set 1 to receive the transmission; when the last bit of the bitmap is 0, it is used to indicate that the UE does not send the downlink transmission unit.
  • the Receive Response of Set 1 is sent.
  • the indication method provided by the present application is sent on which uplink transmission unit by indicating which of the downlink transmission unit sets of the UE is received. It avoids the problem that communication is confusing when the receiving response is not sent, or when it is not successfully received by the network device. The error rate of the entire communication system is reduced, and the communication quality and efficiency are improved.
  • the UE acquires an index of the downlink transmission unit set.
  • the one index corresponds to one of the downlink transmission unit sets.
  • the UE may receive an index of the set of downlink transmission units on one or more downlink transmission units, which may be the same as or different from one or more downlink transmission units of the transmission bitmap. In addition to receiving the index sent by the network device, the UE may acquire the index in advance.
  • the index of the downlink transmission unit set 1 is 1, and the last bit of the bitmap is used to indicate whether the UE transmits the reception response of the downlink transmission unit set 1 corresponding to the index 1.
  • the indication method provided by the application further increases the accuracy of the indication method and improves the communication quality and efficiency by acquiring the index by the UE.
  • the UE in S1103 monitors whether the uplink transmission unit is idle. If it is idle, S1104 is executed, and if it is not idle, S1104 is not executed.
  • the UE first monitors whether the uplink transmission unit (eg, unlicensed spectrum, unlicensed channel) is idle before transmitting the signal.
  • the busy idle state can be determined by the size of the received power on the unlicensed spectrum/channel. If the received power is less than a certain threshold, the unlicensed spectrum/channel is considered to be in an idle state, and the signal can be sent on the unlicensed spectrum/channel. Otherwise, no signal is sent.
  • the UE sends a receiving response of the one or more downlink transmission unit sets indicated by the bitmap in the uplink transmission unit corresponding to the downlink transmission unit set.
  • the network device may not successfully receive the reception response of the one or more downlink transmission unit sets.
  • the UE transmits the reception response of the downlink transmission unit set 1 indicated by the bitmap on the uplink transmission unit 1 (transmission unit 3) corresponding to the downlink transmission unit set 1.
  • the probability that the UE does not successfully send a reception response increases.
  • the network device indicates in the subsequent transmission which of the downlink transmission unit sets of the UE is received, which uplink transmission unit should be sent, thereby avoiding communication confusion and improving communication quality and effectiveness.
  • the indication method includes:
  • the network device determines a bitmap, where the bitmap is used to indicate that the network device needs to receive a receiving response of one or more downlink transmission unit sets.
  • the receiving response of the one or more downlink transmission unit sets that need to be received includes: a receiving response of the downlink transmission unit set in which the current downlink transmission unit is located, and one or more downlink transmission units that are not successfully received by the network device history.
  • the receiving response of the one or more downlink transmission unit sets that are not successfully received by the network device does not include: the network device has not successfully received, and the network device has passed one or more of the downlink transmission unit sets before
  • the bit map of the downlink transmission unit indicates the received response of the one or more downlink transmission unit sets. As shown in FIG.
  • the receiving response of the downlink transmission unit set in which the current downlink transmission unit is located is the reception response of the transmission unit set 3, and the network device has not received the history successfully.
  • the received response of the one or more downlink transmission unit sets includes the reception response of the downlink transmission unit set 1, so the bitmap 0101 transmitted on the transmission unit 4 indicates the downlink transmission unit sets 1 and 3.
  • the network device sends the bitmap on the downlink transmission unit 7 the receiving response of the downlink transmission unit set in which the current downlink transmission unit is located is the reception response of the downlink transmission unit set 4, and one or more of the network device history has not successfully received.
  • the received response of the set of downlink transmission units includes the reception responses of the downlink transmission unit sets 1 and 3, but since the network device has indicated by the bitmap on the downlink transmission units 4 and 6 before the downlink transmission unit set 4, the downlink transmission unit The bitmap 1000 transmitted on 7 no longer indicates the downlink transmission unit sets 1 and 3, and only the downlink transmission unit set 4 is indicated.
  • the network device sends the bitmap to the user equipment UE on one or more first downlink transmission units included in the downlink transmission unit set.
  • the network device transmits a bitmap on the transmission units 1, 2, 4, 6-9.
  • the network device receives a receiving response of one or more downlink transmission unit sets on an uplink transmission unit corresponding to the downlink transmission unit set.
  • the network device receives a receive response for one or more sets of downlink transmission units on transmission units 3, 5, 10, 11, n.
  • the indication method provided by the present application indicates, by the network device, which of the receiving transmissions of the downlink transmission unit set that it needs to receive, avoids the problem that the communication response is confusing when the receiving response is not sent, or is not successfully received by the network device. .
  • the error rate of the entire communication system is reduced, and the communication quality and efficiency are improved.
  • the network device sends an index of the downlink transmission unit set to the UE on one or more downlink transmission units included in the downlink transmission unit set.
  • one index corresponds to a downlink transmission unit set.
  • the indication method provided by the application is sent by the network device to take an index, which further increases the accuracy of the indication method and improves communication quality and efficiency.
  • the network device sets the one or more downlink transmission unit sets with the one or more The index of the downlink transmission unit set is unbound.
  • the network device successfully receives the receiving response of the downlink transmission unit set 2 on the transmission unit 5, and then unbinds the downlink transmission unit set 2 and the index 2.
  • the index 2 is bound to the downlink transmission unit set 5.
  • the indication method provided by the present application reduces the number of bits of the bitmap by releasing and rebinding the correspondence between the downlink transmission unit set and the index, thereby reducing the communication load and improving the communication efficiency.
  • the indication method of the present application is introduced by taking the transmission scenario in the TDD mode as an example with reference to FIG. 11A and FIG. 11B. Before the introduction, the following is a description of FIG.
  • the length of time resources occupied by the downlink transmission unit and the transmission unit may be the same or different. Due to space limitations, the downlink transmission unit set is referred to as "set". For the reason of the drawing, a downlink transmission unit set seems to include the transmission unit, but it should be understood that the downlink transmission unit set in the present application includes only the downlink transmission unit, and does not include the uplink transmission unit.
  • FIG. 12 is a schematic diagram of an indication method of an indication method according to the present application.
  • the UE needs to indicate the reception response bit map sent on the transmission unit corresponding to the current downlink transmission unit set. As shown in FIG. 12, 0001, 0010, 0101, 1000, etc. are bitmaps in the present application. If the network device supports a maximum of four downlink transmission unit sets, that is, the network device can only support a maximum of four downlink transmission unit sets at a time. Each downlink transmission unit set may also have a corresponding index.
  • the transmission unit corresponding to the downlink transmission unit set 1 (and/or index 1) is the transmission unit 3, and the transmission unit corresponding to the downlink transmission unit set 2 (and/or index 2) is the transmission unit 5, and the downlink transmission unit set 3 (and / Or index 3) the corresponding transmission unit is the transmission unit 10, and the transmission unit corresponding to the downlink transmission unit set 4 (and/or index 4) is the transmission unit 11, and the new downlink transmission unit set 2 (or called the downlink transmission unit set 5) (and/or index 2)
  • the corresponding transmission unit is the transmission unit n, and n is a positive integer greater than or equal to 1.
  • the network device transmits a bitmap 0001 on the transmission unit 1, and 0001 indicates that the UE transmits a reception response of the downlink transmission unit set 1 on the transmission unit 3.
  • the network device transmits a bitmap 0010 on the transmission unit 2, with 0010 indicating that the UE transmits a reception response of the downlink transmission unit set 1 on the transmission unit 5. If the network device fails to receive the receiving response of the downlink transmission unit set 1 on the transmission unit 3, the index 1 of the transmission unit 1 cannot be released, that is, the index 1 cannot be allocated to other downlink transmission unit sets.
  • the network device transmits a bitmap 0101 on the transmission units 4 and 6, with 0101 indicating that the UE transmits a reception response of the downlink transmission unit sets 1 and 3 on the transmission unit 10.
  • the network device successfully receives the receiving response of the downlink transmission unit set 2 on the transmission unit 5, and the index 2 of the transmission unit 2 is released by the network device, that is, the index 2 can be allocated to other downlink transmission unit sets.
  • the network device transmits a bitmap 1000 on the transmission unit 7, with 1000 indicating that the UE transmits a reception response of the downlink transmission unit set 4 on the transmission unit 11.
  • the network device transmits a bitmap 0010 on the transmission units 8 and 9, with 0010 indicating that the UE transmits a new downlink transmission unit set 2 (or referred to as a downlink transmission unit set 5) on the transmission unit n.
  • the index of the new downlink transmission unit set 2 (or called the downlink transmission unit set 5) is the index 2 that was previously released.
  • the UE by using the existing NDI field, it can be determined whether the transmission corresponding to the transmission unit is a new transmission or a retransmission, so that the reception response of the new downlink transmission unit set 2 can be accurately transmitted.
  • the network device successfully receives the reception responses of the downlink transmission unit sets 3, 4 and 2 on the transmission units 10, 11, n respectively, and the indices 3, 4 and 2 of the transmission units 3, 4 and 2 are to be corresponding to the network device by the previous
  • the downlink transmission unit sets 3, 4 and 5 are released, that is, the indices 3, 4 and 2 can be assigned to other downlink transmission unit sets.
  • the method for determining, by the UE, the receiving response of the downlink transmission unit set is exemplified in the following.
  • the UE determines the receiving of the downlink transmission unit set according to the information and/or the bitmap of the indicated quantity Wt. Respond, such as It can be implemented according to the pseudo code.
  • the present application focuses on the indication of the network device's set of window/downlink transmission units, that is, the outermost loop portion of the pseudo code, and the implementation of the inner loop can follow the existing process in 36.213 or 38.213. Or you can make adaptive modifications/adjustments to the processes in 36.213 or 38.213.
  • the index can display an indication, or an implicit indication
  • Wt be the indicated feedback window, or the number of pseudo-codes of the downlink transmission unit set:
  • the network device or the UE involved in the present application is divided into function transmission units in combination with one or more indication methods.
  • each function transmission unit may be divided according to each function, or two or more functions may be integrated in In a transmission unit.
  • the above-described integrated transmission unit can be implemented in whole or in part by software, hardware, firmware or any combination thereof. It should be noted that the division of the transmission unit in the present application is schematic, and is only a logical function division, and may be further divided in actual implementation.
  • FIG. 17 is a schematic structural diagram of a device 100 provided by the present application, and the device 100 is applicable to implement the network device or the UE of the present application. Referring to FIG. 13, the device 100 includes a receiving unit 101, a transmitting unit 102, and a processing unit 103.
  • the processing unit 103 is configured to determine information indicating the quantity Wt
  • the sending unit 102 is configured to send the user equipment to the one or more downlink transmission units included in the downlink transmission unit set.
  • the UE transmits the information indicating the number Wt.
  • the sending unit 102 is further configured to: send, on the downlink transmission unit set, one or more downlink transmission units, an index of the downlink transmission unit set to the UE.
  • the optional receiving unit 101 is configured to receive, by using the uplink transmission unit corresponding to the downlink transmission unit set, a receiving response of the Wt downlink transmission unit sets sent by the UE.
  • the processing unit 103 is configured to determine a bitmap, and the sending unit 102 is configured to send the user to the one or more first downlink transmission units included in the downlink transmission unit set.
  • the device UE transmits the bitmap.
  • the sending unit 102 is further configured to send an index of the downlink transmission unit set to the UE on one or more downlink transmission units included in the downlink transmission unit set.
  • the optional receiving unit 101 is configured to receive a receiving response of one or more downlink transmission unit sets on an uplink transmission unit corresponding to the downlink transmission unit set.
  • the receiving unit 101 is configured to receive information indicating the quantity Wt sent by the network device on one or more downlink transmission units included in the first downlink transmission unit set.
  • the processing unit 103 is further configured to monitor whether the uplink transmission unit is idle.
  • the monitoring unit 104 (not shown in the figure) is further configured to monitor whether the uplink transmission unit is idle.
  • the receiving unit 101 is further configured to receive an index of the downlink transmission unit set.
  • the processing unit 103 is configured to obtain an index of the downlink transmission unit set.
  • the information indicating the number of bits Wt received by the sending unit 102 on the one or more downlink transmission units sends Wt downlink transmission unit sets on the uplink transmission unit corresponding to the first downlink transmission unit set. Receive response.
  • the receiving unit 101 is configured to receive a bitmap generated by the network device on one or more downlink transmission units included in the downlink transmission unit set.
  • the receiving unit 101 is further configured to receive an index of the downlink transmission unit set.
  • the processing unit 103 is configured to obtain an index of the downlink transmission unit set.
  • the processing unit 103 is further configured to monitor whether the uplink transmission unit is idle.
  • an obtaining unit 104 (not shown in the figure) is configured to obtain an index of the downlink transmission unit set.
  • the monitoring unit 104 (not shown in the figure) is further configured to monitor whether the uplink transmission unit is idle.
  • the sending unit 102 is configured to send, by using the uplink transmission unit corresponding to the downlink transmission unit set, a reception response of one or more downlink transmission unit sets indicated by the bitmap.
  • the network device and the UE may further include more functional units for implementing more functions, thereby avoiding communication confusion and improving communication quality and efficiency.
  • the receiving unit can be implemented through a communication interface, a receiver, a receiving circuit, and the like.
  • the transmitting unit can be implemented through a communication interface, a transmitter, a transmitting circuit, and the like. It should be understood that the functions of the receiving unit and the transmitting unit can also be integrated into two, and are implemented by the communication interface, the transceiver, and the transceiver circuit.
  • the communication interface is a collective name and may include two or more interfaces.
  • the hardware for implementing the network device or the UE is not limited to the foregoing structure, and may further include a processor, a memory, an antenna array, a duplexer, and a baseband. Processing part.
  • the processor may be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), and a field programmable gate array ( Field Programmable Gate Array (FPGA) or other programmable logic device, hardware component, or any combination thereof.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the processor can also be a combination of computing functions, such as a combination of two or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the memory can be set in the processor or it can exist separately.
  • a duplexer is used to implement an antenna array for both transmitting signals and receiving signals.
  • the transmitter is used to convert between the RF signal and the baseband signal.
  • the transmitter can include a power amplifier, a digital-to-analog converter and a frequency converter.
  • the receiver can include a low noise amplifier, an analog to digital converter and a frequency converter. Among them, the receiver and the transmitter may also be collectively referred to as a transceiver.
  • the baseband processing section is used to implement processing of transmitted or received signals, such as layer mapping, precoding, modulation/demodulation, encoding/decoding, etc., and for physical control channels, physical data channels, physical broadcast channels, reference signals, etc. Perform separate processing.
  • the functions of the receiver and the transmitter can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • the processor can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.
  • program code that implements processor, receiver, and transmitter functions is stored in a memory that implements the functions of the processor, receiver, and transmitter by executing code in memory.
  • the implementation of the network device may refer to FIG. 13.
  • a network device 1000 is provided.
  • the network device 1000 includes a processor 1001, a memory 1004, a receiver 1003, a transmitter 1002, and the receiver 1003 and the transmitter 1002.
  • the memory 1004 is for storing a program executable by the processor 1001, the program including instructions for implementing any of the above-described indication methods, steps or processes of the present application.
  • the implementation of the network device can also refer to FIG. 14.
  • the implementation of the UE may refer to FIG. 15.
  • the UE2000 includes: a processor 2001, a memory 2003, and a transceiver 2002.
  • the transceiver 2002 is configured to communicate with other network elements (through an antenna and Other network element communication) is used to store a program executable by the processor 2001, the program including instructions for implementing any of the above-described indication methods, steps or processes.
  • the UE implementation manner can also refer to FIG. 16.
  • the network device or the UE When the network device or the UE is implemented by software, the concepts, explanations, detailed descriptions and other steps related to the present application are referred to the description of the content in the foregoing indication method. In this application, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes two or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from two computer readable storage media to another computer readable storage medium, for example, the computer instructions can be from two website sites, computers, servers Or the data center is transmitted to two other website sites, computers, servers, or data centers via wired (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes two or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, Solid State DisK (SSD)).
  • the storage medium shown may be integrated into a device, module, or processor, or may be separately configured.
  • the application further provides a communication system including the foregoing network device and a UE.

Abstract

本申请提供了一种指示方法，网络设备及用户设备。网络设备通过一个或者多个下行传输单元上携带的指示信息(包括但不限于比特图，指示数量Wt的信息，指示索引的信息)显示或者隐式的将指示网络设备需要收到的一个或者多个下行传输单元集合的接收响应，也即指示UE需要向网络设备发送的一个或者多个下行传输单元集合的接收响应，使得UE能够在正确的上行传输单元上，正确的发送网络设备指示其发送的下行传输单元集合的接收响应。从而减少差错和没有必要的重传，确保服务质量，同时提高通信效率。特别是在先侦听后发送的非授权上行传输单元(信道)上，能够进一步的减少整个通信系统的差错率，提高通信质量和效率。

Description

指示方法，网络设备及用户设备 技术领域
本申请涉及通信领域，并且更具体地，涉及指示方法，网络设备及用户设备。
背景技术
在蜂窝通信系统中，由于无线信道时变特性和多径衰落对信号传输带来的影响，以及二些不可预测的干扰会导致信号传输的失败。因此通常可以采用混合自动重传请求(HARQ，Hybrid Automatic Repeat reQuest)机制或者自动重传请求(ARQ，Automatic Repeat-reQuest)等指示方法来进行差错控制。当数据到达接收端时，接收端对其进行检错，如果接收正确，则返回肯定应答(Acknowledgement，ACK)，如果错误，则返回否定应答(Negative Acknowledgement，NACK)。但是由于如前所述的信道、信号以及不可预测的干扰等导致传输失败，则接收端发送的ACK或者WtACK不无法被发送端接收，则会对后续的传输造成影响。针对该问题，目前尚未有解决方案。
发明内容
本申请提供了一种指示方法，网络设备及用户设备。网络设备通过一个或者多个下行传输单元上携带的指示信息(包括但不限于比特图，指示数量Wt的信息，指示索引的信息)显示或者隐式的将指示网络设备需要收到的一个或者多个下行传输单元集合的接收响应，也即指示UE需要向网络设备发送的一个或者多个下行传输单元集合的接收响应，使得UE能够在正确的上行传输单元上，正确的发送网络设备指示其发送的下行传输单元集合的接收响应。从而减少差错和没有必要的重传，确保服务质量，同时提高通信效率。特别是在先侦听后发送的非授权上行传输单元(信道)上，能够进一步的减少整个通信系统的差错率，提高通信质量和效率。
第一方面，提供一种指示方法，所述指示方法包括：用户设备UE，在下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的比特图；其中，所述比特图用于指示所述UE，在所述下行传输单元集合对应的上行传输单元上，发送一个或多个下行传输单元集合的接收响应。
结合第一方面，在第一方面的一种可能的实现方式中，一个下行传输单元集合与一个上行传输单元对应。
结合第一方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，如果网络设备支持的最大下行传输单元集合的个数为M，其中，M为大于等于1的正整数，则所述比特图的比特数为M。
结合第一方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述比特图的一个比特位，用于指示所述UE是否发送一个下行传输单元集合的接收响应。
结合第一方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE获取下行传输单元集合的索引，其中，一个索引与一个下 行传输单元集合对应。
结合第一方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或者多个下行传输单元集合的接收响应。
结合第一方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE监听所述上行传输单元是否空闲；所述UE在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或多个下行传输单元集合的接收响应包括，如果所述上行传输单元空闲，则所述UE在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或多个下行传输单元集合的接收响应。
第二方面，提供一种指示方法，所述指示方法包括：网络设备确定比特图，其中，所述比特图用于指示网络设备需要收到一个或多个下行传输单元集合的接收响应；所述网络设备在下行传输单元集合包括的一个或多个第一下行传输单元上，向用户设备UE发送所述比特图。
结合第二方面，在第二方面的一种可能的实现方式中，所述需要收到的一个或多个下行传输单元集合的接收响应包括：
当前下行传输单元所在的下行传输单元集合的接收响应，和所述网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应不包括：所述网络设备未成功收到，且所述网络设备已经通过所述下行传输单元集合之前的一个或者多个下行传输单元上的比特图指示过的一个或多个下行传输单元集合的接收响应。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述网络设备支持的最大下行传输单元集合的个数为M，其中，M为大于等于1的正整数，则所述比特图的比特数为M。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述比特图的一个比特用于指示一个下行传输单元集合。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，还向所述UE发送下行传输单元集合的索引；其中，一个索引与一个下行传输单元集合对应。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述网络设备在所述下行传输单元集合对应的上行传输单元上接收一个或多个下行传输单元集合的接收响应。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述网络设备在所述下行传输单元集合对应的所述上行传输单元上接收所述一个或多个下行传输单元集合的接收响应之后，所述指示方法还包括，如果所述网络设备成功收到所述一个或多个下行传输单元集合的接收响应，则所述网络设备将所述一个或多个下行传输单元集合与所述一个或多个下行传输单元集合的索引解除绑定。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中， 所述指示数量Wt的信息，通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI指示。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述DCI包括下行分配指示DAI，所述DAI用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发Wu个下行传输单元的接收响应。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述方法还包括，
所述UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wu的信息，其中，Wu为正整数或者0；
所述指示数量Wu的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
结合第二方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述DAI中的总total DAI用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发Wu个下行传输单元的接收响应。
第三方面，提供一种指示方法，所述指示方法包括：用户设备UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wt的信息，其中Wt为大于等于1的正整数；所述用于指示数量Wt的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Wt个下行传输单元集合的接收响应。
结合第三方面，在第三方面的一种可能的实现方式中，一个下行传输单元集合与一个上行传输单元对应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，Wt等于1，所述Wt个下行传输单元集合为所述第一下行传输单元集合。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述第一下行传输单元集合包括至少两个下行传输单元，则所述UE根据在所述一个或者多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应包括，所述UE根据在所述第一下行传输单元集合包括的最后一个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，Wt大于或者等于2，且所述第一下行传输单元集合中所有下行传输单元上的Wt均相同，则所述Wt个下行传输单元集合的接收响应包括：第一集合的接收响应和第三集合的接收响应；其中，所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；所述第三集合的接收响应包括Wt-1个下行传输单元集合的接收响应；其中，所述Wt-1个下行传输单元集合的接收响应包括，所述网络设备指示所述UE在E个上行传输单元中发送的 Wt-1个下行传输单元集合的响应；其中，所述E个上行传输单元位于所述第一下行传输单元集合之前，E小于或等于Wt-1。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，Wt大于或者等于2，且所述第一下行传输单元集合中的Wt发生B次改变，则所述Wt个下行传输单元集合的接收响应包括第一集合的接收响应，第二集合的接收响应和第三集合的接收响应；其中，所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；所述第二集合的接收响应包括A个下行传输单元集合的接收响应，所述A个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在B次改变中，每一次改变后的第一个下行传输单元之前的一个上行传输单元中，发送的C个下行传输单元集合的接收响应，其中，A，B和C为大于或等于1的整数，B小于或等于A，C小于等于A；所述第三集合包括D个下行传输单元集合的接收响应，所述D个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在E个上行传输单元中发送的D个下行传输单元集合的接收响应，其中E和D为大于或等于0的整数，E小于或等于D；其中，D个下行传输单元集合不包括第一集合和第二集合中包括的下行传输单元集合；其中，所述E个上行传输单元位于所述第一下行传输单元集合之前；其中，A+D+1＝Wt。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，B次改变中，每一次改变后的第一个下行传输单元之前的一个上行传输单元具体包括，B次改变中，每一次改变后的第一个下行传输单元之前最近的一个上行传输单元
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，E个上行传输单元是按照时间顺序确定的。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，E个上行传输单元是按照时间顺序逆序确定的。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，A＝∑ iC i,i＝1,…B,C i为B次改变中第i次改变后的第一个下行传输单元之前的一个上行传输单元中所发送的Ci个下行传输单元集合的接收响应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE获取指示偏移K的信息，其中，K为大于等于0的正整数；所述E个上行传输单元位于所述第一下行传输单元集合之前包括，所述E个上行传输单元位于，所述第一下行传输单元集合包括的第一个下行传输单元向前偏移K个传输单元之前。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE获取指示所述网络设备指示时延J的信息，其中，J为大于等于0的正整数；J大于等于1，则所述第一下行传输单元集合之前的E个上行传输单元包括，所述第一下行传输单元集合向前偏移J-1个传输单元之前的E个上行传输单元。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE获取指示偏移K的信息，其中，K为大于等于0的正整数；每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏移K个传输单元之前。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE获取指示所述网络设备指示时延J的信息，其中，J为大于等于0的正整数；每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏 移个J-1传输单元之前。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，K+1＝J。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE获取索引；其中，一个索引与一个下行传输单元集合对应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应包括，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述索引对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE监听所述上行传输单元是否空闲；所述UE根据所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送接收响应包括，如果所述上行传输单元空闲，则所述UE根据所述一个或多个行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送接收响应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示数量Wt的信息，通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI指示。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述DCI包括下行分配指示DAI，所述DAI用于指示所述网络设备需要受到Wu个下行传输单元的接收响应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述方法还包括，所述网络设备，在第一下行传输单元集合包括的一个或多个下行传输单元上，发送指示数量Wu的信息，其中，Wu为正整数或者0；所述指示数量Wu的信息，用于指示所述网络设备需要收到Wu个下行传输单元的接收响应。
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
结合第三方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述DAI中的总total DAI用于指示所述网络设备需要收到的Wu个下行传输单元的接收响应。
第四方面，提供一种指示方法，所述指示方法包括：用户设备UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Q的信息，其中Q为大于等于0的正整数；所述用于指示数量Q的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Q+1个下行传输单元集合的接收响应。
结合第四方面，在第四方面的一种可能的实现方式中，Q等于0，所述Q+1个下行传输单元集合为所述第一下行传输单元集合。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Q的信息在所述第一下行 传输单元集合对应的上行传输单元上发送Q+1个下行传输单元集合的接收响应。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述第一下行传输单元集合包括至少两个下行传输单元，则所述UE根据在所述一个或者多个下行传输单元上接收的指示数量Q的信息在所述第一下行传输单元集合对应的上行传输单元上发送Q+1个下行传输单元集合的接收响应包括，所述UE根据在所述第一下行传输单元集合包括的最后一个下行传输单元上接收的指示数量Q的信息在所述第一下行传输单元集合对应的上行传输单元上发送Q+1个下行传输单元集合的接收响应。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，Q大于或者等于1，且所述第一下行传输单元集合中所有下行传输单元上的Q均相同，则所述Q个下行传输单元集合的接收响应包括：第三集合的接收响应；其中，所述第三集合的接收响应包括Q个下行传输单元集合的接收响应；其中，所述Q个下行传输单元集合的接收响应包括，所述网络设备指示所述UE在E个上行传输单元中发送的Q个下行传输单元集合的响应；其中，所述E个上行传输单元位于所述第一下行传输单元集合之前，E小于或等于Q。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中权利要求，其特征在于，Q大于或者等于1，且所述第一下行传输单元集合中所有下行传输单元上的Q发生B次改变，则所述Q个下行传输单元集合的接收响应包括第二集合的接收响应和第三集合的接收响应；其中，所述第二集合的接收响应包括A个下行传输单元集合的接收响应，所述A个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在B次改变中，每一次改变后的第一个下行传输单元之前的一个上行传输单元中，发送的C个下行传输单元集合的接收响应，其中，A，B和C为大于或等于1的整数，B小于或等于A，C小于等于A；所述第三集合包括D个下行传输单元集合的接收响应，所述D个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在E个上行传输单元中发送的D个下行传输单元集合的接收响应，其中E和D为大于或等于0的整数，E小于或等于D；其中，D个下行传输单元集合不包括第一集合和第二集合中包括的下行传输单元集合；
其中，所述E个上行传输单元位于所述第一下行传输单元集合之前；其中，A+D＝Q。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，B次改变中，每一次改变后的第一个下行传输单元之前的一个上行传输单元具体包括，B次改变中，每一次改变后的第一个下行传输单元之前最近的一个上行传输单元
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，E个上行传输单元是按照时间顺序确定的。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，E个上行传输单元是按照时间顺序逆序确定的。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，A＝∑ iC i,i＝1,…B,C i为B次改变中第i次改变后的第一个下行传输单元之前的一个上行传输单元中所发送的Ci个下行传输单元集合的接收响应。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE获取指示偏移K的信息，其中，K为大于等于0的正整数；所述E个上行传输单元位于所述第一下行传输单元集合之前包括，所述E个上行传输单元 位于，所述第一下行传输单元集合包括的第一个下行传输单元向前偏移K个传输单元之前。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE获取指示所述网络设备指示时延J的信息，其中，J为大于等于0的正整数；J大于等于1，则所述第一下行传输单元集合之前的E个上行传输单元包括，所述第一下行传输单元集合向前偏移J-1个传输单元之前的E个上行传输单元。结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE获取指示偏移K的信息，其中，K为大于等于0的正整数；每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏移K个传输单元之前。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE获取指示所述网络设备指示时延J的信息，其中，J为大于等于0的正整数；每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏移个J-1传输单元之前。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，K+1＝J。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE获取索引；其中，一个索引与一个下行传输单元集合对应。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Q的信息在所述第一下行传输单元集合对应的上行传输单元上发送Q+1个下行传输单元集合的接收响应包括，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Q的信息在所述索引对应的上行传输单元上发送Q+1个下行传输单元集合的接收响应。
结合第四方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述指示方法还包括，所述UE监听所述上行传输单元是否空闲；所述UE根据所述一个或多个下行传输单元上接收的指示数量Q的信息在所述第一下行传输单元集合对应的上行传输单元上发送接收响应包括，如果所述上行传输单元空闲，则所述UE根据所述一个或多个行传输单元上接收的指示数量Q的信息在所述第一下行传输单元集合对应的上行传输单元上发送接收响应。
第五方面，提供一种指示方法，所述指示方法包括：网络设备确定指示数量Wt的信息，其中，Wt为大于等于1的正整数；其中，所述指示数量Wt的信息用于指示所述网络设备需要收到的Wt个下行传输单元集合的接收响应；所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wt的信息。
结合第五方面，在第五方面的一种可能的实现方式中，所述需要收到的Wt个下行传输单元集合的接收响应包括：当前下行传输单元所在的下行传输单元集合的接收响应，和所述网络设备在历史上未成功收到的Wt-1个下行传输单元集合的接收响应。
结合第五方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述网络设备在历史上未成功收到的Wt-1下行传输单元集合的接收响应不包括：所述网络设备未成功收到，且所述网络设备已经在所述下行传输单元集合之前的一个或者多个下行传输单元上指示过的一个或多个下行传输单元集合的接收响应。
结合第五方面和上述任意一种或者多种可能的实现方式，所述指示方法还包括，所述 网络设备在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应；其中，所述一个下行传输单元集合对应一个上行传输单元。
结合第五方面和上述任意一种或者多种可能的实现方式，所述网络设备在连续的多个上行传输单元中的任意一个上行传输单元上，未成功收到一个或者多个下行传输单元集合的接收响应，则所述网络设备，在所述连续的多个上行传输单元中的每个上行传输单元上，需要收到的一个或者多个下行传输单元集合的接收响应，均为未成功收到的一个或者多个下行传输单元集合的接收响应。
结合第五方面和上述任意一种或者多种可能的实现方式，所述网络设备在下行传输单元集合包括一个或多个下行传输单元上，还向所述UE发送所述下行传输单元集合的索引；其中，一个索引与一个下行传输单元集合对应。
结合第五方面和上述任意一种或者多种可能的实现方式，所述网络设备接收在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应包括，所述网络设备在所述索引对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应。
第六方面，提供一种指示方法，所述指示方法包括：网络设备获取指示数量Q的信息，其中，Q为大于等于0的正整数；其中，所述指示数量Q的信息用于指示所述网络设备需要收到的Q+1个下行传输单元集合的接收响应；所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Q的信息。
结合第六方面，在第六方面的一种可能的实现方式中，所述需要收到的Q+1个下行传输单元集合的接收响应包括：当前下行传输单元所在的下行传输单元集合的接收响应，和所述网络设备在历史上未成功收到的Q个下行传输单元集合的接收响应。
结合第六方面和上述任意一种或者多种可能的实现方式，在另一种可能的实现方式中，所述网络设备在历史上未成功收到的Q-1下行传输单元集合的接收响应不包括：所述网络设备未成功收到，且所述网络设备已经在所述下行传输单元集合之前的一个或者多个下行传输单元上指示过的一个或多个下行传输单元集合的接收响应。
结合第六方面和上述任意一种或者多种可能的实现方式，所述指示方法还包括，所述网络设备在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Q+1个下行传输单元集合的接收响应；其中，所述一个下行传输单元集合对应一个上行传输单元。
结合第六方面和上述任意一种或者多种可能的实现方式，所述网络设备在连续的多个上行传输单元中的任意一个上行传输单元上，未成功收到一个或者多个下行传输单元集合的接收响应，则所述网络设备，在所述连续的多个上行传输单元中的每个上行传输单元上，需要收到的一个或者多个下行传输单元集合的接收响应，均为未成功收到的一个或者多个下行传输单元集合的接收响应。
结合第六方面和上述任意一种或者多种可能的实现方式，所述网络设备在下行传输单元集合包括一个或多个下行传输单元上，还向所述UE发送所述下行传输单元集合的索引；其中，一个索引与一个下行传输单元集合对应。
结合第六方面和上述任意一种或者多种可能的实现方式，所述网络设备接收在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Q+1个下行传输单元集合的接收响应包括，所述网络设备在所述索引对应的上行传输单元上接收所述UE发送的Q+1个 下行传输单元集合的接收响应。
结合上述任何一方面和上述任何一方面的一种或者多种可能的实现方式，在另一种可能的实现方式中，下行传输单元集合的接收响应包括所述下行传输单元集合包括的一个或多个下行传输单元的接收响应。
结合上述任何一方面和上述任何一方面的一种或者多种可能的实现方式，在另一种可能的实现方式中，下行传输单元包括一个或多个载波，则所述下行传输单元集合的接收响应包括所述下行传输单元集合包括的一个或多个下行传输单元包括的一个或多个载波的接收响应。
结合上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式，在另一种可能的实现方式中，所述接收响应包括肯定应答ACK和/或否定应答NACK。
第七方面，提供一种计算机可读存储介质，所述计算机可读存储介质包括指令，当其在计算机上运行时，使得计算机执行上述上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式的指示方法。
第八方面，提供一种程序产品，所述程序产品包括指令，当其在计算机上运行时，使使得计算机执行上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式的指示方法。
第九方面，提供一种芯片，所述芯片包括：至少二个电路，所述电路用于执行使得计算机执行上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式的指示方法。
第十方面，提供一种芯片，所述芯片包括：处理器和存储器，所述存储器存储被所述处理器执行的指令，所述指令包括使得计算机执行上述上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式的指示方法。
第十方面，提供一种芯片，所述芯片包括：处理器，当所述处理器运行指令时，使得计算机执行使得计算机执行上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式的指示方法。
第十一方面，提供一种通信设备，所述通信设备包括存储器，处理器，和收发器；所述存储器用于存储指令；所述指令在所述处理器上运行，用于执行上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式的指示方法。其中，所述通信设备可以是网络设备或者是UE。
第十二方面，提供一种通信系统，包括网络设备和UE,所述通信系统用于执行上述任何一方面和/或上述任何一方面的一种或者多种可能的实现方式的指示方法。
第十三方面，提供一种指示方法包括：用户设备UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wu的信息，其中Wu为正整数或者0；所述指示数量Wu的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
结合第十三方面和上述任意一种或者多种可能的实现方式，所述指示方法还包括，所述UE，根据在所述一个或多个下行传输单元上接收的指示数量Wu的信息，在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
结合第十三方面和上述任意一种或者多种可能的实现方式，所述指示数量Wu的信息 通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
第十四方面，提供一种指示方法包括：网络设备，确定指示数量Wu的信息，其中Wu为正整数或者0；其中，所述指示数量Wu的信息，用于指示所述网络设备需要收到Wu个下行传输单元的接收响应；所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wu的信息。
结合第十四方面和上述任意一种或者多种可能的实现方式，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的，下行控制信息DCI中的DAI指示.
应该理解的的是第十三和/或第十四方面可以和上述任何一方面结合
附图说明
图1是本申请的一种系统结构示意图；
图2是可以应用本申请的另一种网络架构示意图；
图3是本申请传输单元结构示意图；
图4为一种下行重传指示方法的流程示意图；
图5是本申请一种指示方法的流程示意图；
图6是本申请另一种指示方法的流程示意图；
图7是本申请一种指示方法的示意图；
图8是本申请另一种指示方法的示意图；
图9是本申请另一种指示方法的示意图；
图10是本申请另一种指示方法的示意图；
图11A是本申请另一种指示方法的流程示意图；
图11B是本申请另一种指示方法的流程示意图；
图12是本申请另一种指示方法的示意图；
图13是本申请提供的一种网络设备的结构示意图；
图14是本申请提供的一种网络设备的结构示意图；
图15是本申请提供的一种UE的结构示意图；
图16是本申请提供的一种UE的结构示意图；
图17是本申请提供的设备100的结构示意图。
具体实施方式
在本申请中使用的术语是仅仅出于描述特定可能的实现方式的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。本申请中使用的术语“和/或”是指并包括二个或多个相关联的列出项目的或所有可能组合。本申请中采用的术语“包括”规定了所述的特征、数据、信息、整体、步骤、操作、元件和/或部件的存在，而不排除二个或多个其他特征、数据、信息、整体、步骤、操作、元件、部件和/或它们的组的存在或附加。本申请中使用的术语“指示”可以包括“显示指示”和/或“隐式指示”。本申请中步骤的顺序可以自由排列本申请对此不做限定；即使有序号标记的步骤，该序号仅用来简化描述，实际中可以不按照序号的顺序执行，还可以同时执行。
首先，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
1)、网络设备可以是任意一种具有无线收发功能的设备。包括但不限于：网络设备(例如，网络设备NodeB、演进型网络设备eNodeB、第五代(the fifth generation，5G)通信系统中的网络设备(gNB)、未来通信系统中的网络设备或网络设备、WiFi系统中的接入节点、无线中继节点、无线回传节点)等。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。网络设备还可以是5G网络中的网络设备或未来演进网络中的网络设备；还可以是可穿戴设备或车载设备等。网络设备还可以是小站，传输节点(transmission reference point，TRP)等。当然本申请不限于此。2)、基站也可称为基站设备，是一种部署在无线接入网用以提供无线通信功能的设备。在不同的无线接入系统中基站的名称可能有所不同，例如在而在通用移动通讯系统(Universal Mobile Telecommunications System，UMTS)网络中基站称为节点B(NodeB),在LTE网络中的基站称为演进的节点B(evolved NodeB，简称：eNB或者eNodeB)，在未来5G系统中可以称为收发节点(Transmission Reception Point，TRP)网络节点或g节点B(g-NodeB，gNB)。2)、用户设备(user equipment，UE)是一种具有无线收发功能的设备可以和网络设备进行交互，可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述UE可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)UE设备、增强现实(Augmented Reality，AR)UE设备、工业控制(industrial control)中的无线UE、无人驾驶(self driving)中的无线UE、远程医疗(remote medical)中的无线UE、智能电网(smart grid)中的无线UE、运输安全(transportation safety)中的无线UE、智慧城市(smart city)中的无线UE、智慧家庭(smart home)中的无线UE等等。本申请的实施例对应用场景不做限定。UE可以是能和网络设备通信的设备。UE有时也可以称为终端设备、接入终端设备、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、无线通信设备、UE代理或终端装置等。
3)、名词“网络”和“系统”经常交替使用或者同时使用，但本领域的技术人员可以理解其含义。信息(information)，信号(signal)，消息(message)，信道(channel)有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是二致的。“的(of)”，“相应的(corresponding，relevant)”和“对应的(corresponding)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是二致的。
下面将结合附图，对本申请中的技术方案进行描述。
图1为了本申请应用的一种系统的示意图。如图1所示，系统100可以包括网络设备102以及UE104、106、108、110、112和114(为方便描述，以下以UE104指代UE104、106、108、110、112和114中的任意二个或者多个UE)，其中，网络设备102与UE104之间通过无线连接。应理解，图1仅以系统包括二个网络设备为例进行说明，但本申请并不限于此，例如，系统还可以包括更多的网络设备；类似地，系统也可以包括更多或者更少的UE。还应理解，系统也可以称为网络，或者网络系统，本申请对此并不限定。
图2是可以应用本申请的另一种网络架构示意图，该网络架构示意图可以是下一代无线通信系统中的NR的网络架构图。在该网络架构示意图中，网络设备可以被分为一个集中式单元(Centralized Unit，CU)和多个传输接收点(Transmission Reception Point， TRP)/分布式单元(Distributed Unit，DU)，即网络设备的基于带宽的单元(Bandwidth Based Unit，BBU)被重构为DU和CU功能实体。需要说明的是，集中式单元、TRP/DU的形态和数量并不构成对本申请的限定。图2所示的网络设备1和网络设备2各自对应的集中式单元的形态虽然有所不同，但是并不影响各自的功能。可以理解的是，集中式单元1和虚线范围内的TRP/DU是网络设备1的组成元素，集中式单元2和实线范围内的TRP/DU是网络设备2的组成元素，网络设备1和网络设备2为NR系统中涉及的网络设备(或称为基站)。CU可以处理无线高层协议栈功能，例如无线资源控制(Radio Resource Control，RRC)层，分组数据汇聚层协议(Packet Data Convergence Protocol，PDCP)层等，甚至也能够支持部分核心网功能下沉至接入网，术语称作边缘计算网络，能够满足未来通信网络对于新兴业务例如视频，网购，虚拟/增强现实对于网络时延的更高要求。DU可以主要处理物理层功能和实时性需求较高的层2功能，考虑到无线远端单元(Radio Remote Unit，RRU)与DU的传输资源，部分DU的物理层功能可以上移到RRU，伴随RRU的小型化，甚至更激进的DU可以与RRU进行合并。CU可以集中式的布放，DU布放取决实际网络环境，核心城区，话务密度较高，站间距较小，机房资源受限的区域，例如高校，大型演出场馆等，DU也可以集中式布放，而话务较稀疏，站间距较大等区域，例如郊县，山区等区域，DU可以采取分布式的布放方式。图2所举例的S1-C接口，可以为网络设备与核心网之间的标准接口，具体S1-C所连接的设备未在图2中示出。
结合图1和图2所示，网络设备向UE发送的数据和/或控制信息，其中控制信息可以用于对相关数据的接收和发送进行指示。数据和/或控制信息可以在同一个传输单元上传输，也可以在不同的传输单元上传输。当二者不在相同的传输单元上传输时，控制信息可以包括该控制信息与其对应数据的对应信息。传输单元对应设备(包括但不限于网络设备和/或UE)进行资源分配和/或数据传输时的时域粒度，或者设备进行数据传输或者发送数据时采用的最小时间单元。传输单元对应时间上连续的至少一个传输时间间隔(transmission time interval,TTI)或者至少一个子帧(subframe)或者至少一个时隙(slot)或者至少一个时域符号(symbol)。其中，该传输单元中包括的每个TTI可以是完整TTI(即占用该TTI对应的全部时域资源发送信息)，也可以是部分TTI(即占用该TTI对应的部分时域资源发送信息，而另外部分时域资源保留为空闲)。可选的，该slot可以是1ms slot，或者称为子帧，长度为1ms；也可以是短于1ms。该slot可以对应14个时域符号，也可以对应少于14个时域符号，当包含少于14个时域符号时，该slot对应短传输时间间隔(short TTI,sTTI)，此时该slot称为迷你时隙(mini-slot)或者称为非时隙(non-slot)。如图3所示，一个传输单元可以包括一个或者多个载波(或者称为单元载波(component carrier，CC))，这些载波中可以包括一个对应主小区(或者称为主服务小区(primary serving cell，PCell))的载波，还可以包括一个或者多个对应辅小区(secondary serving cell，SCell)的载波。网络设备在下行传输单元上向UE发送数据和/或控制信息，UE在上行传输单元上向网络设备发送数据/或控制信息。多个下行传输单元可以组成一个下行传输单元集合，一个下行传输单元集合至少包括一个下行传输单元。
图4为一种下行重传指示方法的流程示意图。如图4所示，S101、网络设备在下行传 输单元上向UE发送数据和/或控制信息。S102、UE确定该数据和/或控制信息是否成功收到。S103、UE发送接收响应。如果UE成功收到该数据和/或控制信息，则可以通过上行传输单元，如，物理上行控制信道(physical uplink control channel，PUCCH)/物理上行共享信道(physical uplink shared channel，PUSCH)向网络设备发送成功收到的接收响应，例如ACK。如果UE没有成功收到该数据和/或控制信息，则可以通过上行传输单元向网络设备发送通过发送未成功收到接收响应，例如NACK。S104、如果UE成功发送接收响应，则网络设备根据该接收响应确定该数据和/或控制信息是否被UE成功收到。例如，如果网络设备收ACK,则网络设备确定该数据和/或控制信息被UE102成功收到，不再发送该数据和/或控制信息。如果网络设备收到NACK，则网络设备可以重新发送该数据和/或控制信息。网络设备除了发送或者重新发送该数据和/或控制信息，还可以发送该数据和/或控制信息的控制信息，用于指示UE如何发送接收响应。该控制信息可以与其指示的数据和/或控制信息在同一下行传输单元上发送，也可以不在同一下行传输单元上发送，可以在同一条信息或信令中发送，也可以不在同一条信令中发送。可以同时发送，也可以不同时发送。对以上这些本申请均不做限定。结合图3和图4，本申请中接收响应可以是载波的接收响应，可以是下行传输单元的接收响应，还可以是下行传输单元集合的接收响应。
应该理解的是，HARQ和ARQ可以适用于本申请。当本申请适用于HARQ时，下行传输单元集合是网络设备调度给UE的下行传输单元的集合，所述下行传输单元中所承载的数据所对应的HARQ响应位于同一个上行传输单元。所述上行传输单元的确定可以由网络设备进行指示，可选的，网络设备在下行传输单元集合中的每一个下行传输单元上，通过信令指示UE在哪个上行传输单元上反馈相对应于所述下行传输单元的HARQ响应，所述信令可以为下行控制信息(DCI)或者其他信令。如果是根据DCI信令,则可以根据DCI信令中的下行分配指示(Downlink Assignment Index，DAI)字段指示有多少个下行传输需要反馈，然后指示了多少比特，之后UE就会反馈多少比特。还可以可以通过如38.213中DCI format中定义的字段PDSCH-to-HARQ_feedback timing indicator进行指示，进一步地，当UE在第n个下行传输单元中收到了包含PDSCH-to-HARQ_feedback timing indicator指示的DCI，以及调度所述UE的下行传输，则UE根据PDSCH-to-HARQ_feedback timing indicator所指示的值k，在位于n+k个传输单元的上行传输单元中反馈所述下行传输的HARQ响应。可选的，网络设备可以通过预先配置的方式，指示配置模式，例如采用如LTE中的TDD configuration方式，网络设备在系统消息中通知TDD configuration配置信息，UE根据该配置指示，即可获知每个下行传输单元中的下行传输所对应的HARQ响应应该在哪个上行传输单元中进行传输；可选的，所述预先配置也可通过其他方式进行指示，例如采用公共控制信息(group common DCI)和/或高层配置信息RRC信令将预先配置的配置信息通知给UE，根据该信息，UE便可获知每个下行传输单元中的下行传输所对应的HARQ响应应该在哪个上行传输单元中进行传输。可选的，也可以采用默认的机制进行，对于在第n个传输单元收到的下行传输，UE默认在第n+k(例如k＝4)个传输单元上发送所述下行传输的HARQ响应。可选的，所述下行传输单元与对应的HARQ响应所在的上行传输单元之间的对应关系也可以采用其他的一些方式，本发明不做具体限定。
在时分双工(time division duplex,TDD)模式的通信网络中，多个下行传输单元的接 收响应可以在同一个上行传输单元上发送。UE以下行传输单元集合为粒度反馈接收响应。当UE未成功发送接收响应或者网络设备未成功收到接收响应时，则网络设备需要UE重新发送该接收响应。如果没有定义UE如何重新发送该接收响应，会造成后续通信的混乱或错误，浪费通信资源。其中，UE未成功发送接收响应包括UE没有发送接收响应和/或UE发送的接收响应没有被网络设备成功收到。网络设备未成功收到接收响应包括网络设备没有收到接收响应和/或者网络设备收到的接收响应无法正确解析。如果网络设备和/或UE部署在非授权频谱的系统中，则UE在发送接收响应之前首先会监听非授权频谱是否空闲(例如监听上行传输单元是否空闲)，如果不空闲则不发送接收响应。这种先监听后发送的机制被称作先监听后发送(Listen Before Talk，简称LBT)。在进行LBT时，由于信道(上行传输单元)占用情况的不确定性，导致网络设备或UE并不总能及时发送接收响应，则更容易造成后续传输的混乱或错误。例如，前一个下行传输单元集合的接收响应没有被UE发送时，UE又需要发送当前下行传输单元集合的接收响应，则UE不知道两个接收响应需要如何发送。
本申请提供的指示方法，通过指示UE有几个下行传输单元集合和/或哪几个下行传输单元集合的接收响，在哪一个上行传输单元上发送。避免了接收响应没有发送，或者没有被网络设备成功收到时，通信发生混乱的问题。应该理解的是，本申请中的一个下行传输单元集合可以理解为一个反馈窗口，或者一个窗口。
下面结合附图介绍本申请的技术方案。
图5是本申请一种指示方法的流程示意图。如图5所示：该指示方法包括：
S501，UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wt的信息。其中，Wt为大于等于1的正整数。应该理解的是，Wt还可以是负整数，0等，本申请对其不做限制。当其为0时，可以指示当前下行传输单元集合的接收响应不进行传输，或者需要等待其他信令的指示再进行传输。所述用于指示数量Wt的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Wt个下行传输单元集合的接收响应。以图7A为例，UE在下行传输单元集合1包括的的两个下行传输单元，传输单元1和2上，接收网络设备发送的指示数量Wt的信息；UE还可以在下行传输单元集合2包括的的一个下行传输单元，传输单元4上，接收网络设备发送的指示数量Wt的信息。
上述内容主要描述了UE如何得知有几个下行传输单元集合需要反馈，在本发明中，还可以指示有Wu个下行传输单元需要反馈，例如可以使用DCI信令指示Wu个下行传输单元的接收响应需要反馈。一个或者多个下行传输单元集合中需要反馈的下行传输单元接收响应的个数，或者也可以是一个或者多个下行传输单元集合对应的接收响应中所包含的信息比特数(可以称为HARQ-ACK feedback codebook的比特数等)，可以根据DCI信令中的相关指示确定。例如可以用LTE/NR系统中所定义的DCI信令中的DAI字段。具体地，该DAI字段包括计数counter DAI以及总total DAI指示。可选的，对于所述DAI字段的指示，应结合需要进行响应下行传输单元集合的数量Wt进行更新。示例性地，total DAI用于指示UE需要进行响应的总的下行传输单元的个数(Wu)，该个数等于需要进行响应的下行传输单元集合中包含的下行传输单元的个数的总和。可以理解的是counter DAI也可以结合需要进行响应的下行单元集合的数量 Wt进行更新。
本申请提供的指示方法，通过指示UE发送几个下行传输单元集合的接收响，以及在哪一个上行传输单元上发送。避免了UE没有发送接收响应，或者发送的接收响应没有被网络设备成功收到时，通信发生混乱的问题。减少了整个通信系统的差错率，提高通信质量和效率。
可选的，S502，UE监听所述上行传输单元是否空闲。如果空闲则执行S503，如果不空闲则不执行S503。一般地，UE在发送信号之前首先会监听上行传输单元(例如，非授权频谱，非授权信道)是否空闲。可以通过非授权频谱/信道上的接收功率的大小来判断其忙闲状态，如果接收功率小于一定门限，则认为非授权频谱/信道处于空闲状态，可以在所述非授权频谱/信道上发送信号，否则不发送信号。
S503，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。如果所述第一下行传输单元集合包括至少两个下行传输单元，则所述UE根据在所述第一下行传输单元集合包括的最后一个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。以图7A为例，下行传输单元集合4包括三个下行传输单元(传输单元7,9和10)，则UE根据下行传输单元集合4包括的最后一个下行传输单元，即传输单元10上接收到的指示数量Wt的信息，在下行传输单元集合4对应的上行传输单元(传输单元n)上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合3和4的接收响应。
在非授权频谱/信道/传输单元上，UE未成功发送接收响应的概率增大。当UE未成功发送接收响应时，尤其需要网络设备在后续传输中指示UE哪几个下行传输单元集合的接收响，应该在哪一个上行传输单元上发送，从而避免通信发生混乱，提高通信质量和效率。
如果Wt等于1，所述Wt个下行传输单元集合为所述第一下行传输单元集合。以图7A为例，UE在传输单元1和2上接收到的指示数量Wt的信息为1，即Wt＝1，则UE在下行传输单元集合1对应的上行传输单元(传输单元3)上需要发送的是下行传输单元集合1的接收响应。
如果Wt大于或者等于2，且所述第一下行传输单元集合中所有下行传输单元上的Wt均相同，则所述Wt个下行传输单元集合的接收响应包括：第一集合的接收响应和第三集合的接收响应；所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；所述第三集合的接收响应包括Wt-1个下行传输单元集合的接收响应；其中，所述Wt-1个下行传输单元集合的接收响应包括，所述网络设备指示所述UE在E个上行传输单元中发送的Wt-1个下行传输单元集合的响应；其中，所述E个上行传输单元位于所述第一下行传输单元集合之前，E小于或等于Wt-1。可选的，E个上行传输单元是按照时间顺序(逆序)确定的。
可以理解的是，UE在识别哪些下行传输单元集合的接收响应是需要发送的接收响应时，是通过(按照一定的顺序)向前寻找上行传输单元。该一定的顺序可以是按照时间顺序确定的。这里的时间顺序确定的可以是按照时间顺序逆序确定的，即先寻找第一下行传输单元集合之前的，离第一下行传输单元集合最近的上行传输单元，也就是时间上最后调 度的上行传输单元。如果UE在该上行传输单元上需要发送的下行传输单元集合的接收响应个数小于Wt-1，则再向前，也就是再寻找在时间上在最后调度的上行传输单元之前的上下传输单元上，UE需要发送的下行传输单元集合的接收响应是几个，以及是哪几个。在累计向前寻找的上行传输单元上需要UE发送的下行传输单元集合的响应的个数为Wt-1(其中重复的下行传输单元集合只算一次)时，不再向前寻找上行传输单元。其中向前是指在时间上在该下行传输单元集合之前。以图10A为例，可以认为传输单元7在传输单元8,9和10之前，传输单元8在传输单元9和10之前，传输单元9在传输单元10之前。在不考虑实际情况，仅为了讲清楚顺序，可以认为对于下行传输单元集合4来说，先寻找到传输单元11，如果传输单元11上UE需要发送的下行传输单元集合的接收响应个数小于Wt-1，再按照时间顺序逆序寻找到传输单元7.
以图10A为例，下行传输单元集合3包括三个下行传输单元(传输单元8，9和10)，UE在传输单元8，9和10上接收到的指示数量Wt的信息都相同，即Wt都相同，都等于2。则2个下行传输单元集合的接收响应包括：第一集合的接收响应和第三集合的接收响应。其中，第一集合是下行传输单元集合3。所述网络设备指示所述UE在位于下行传输单元集合3之前的1个上行传输单元(传输单元7)中发送的2-1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响应，因此第三集合的接收响应包括1个下行传输单元集合的接收响应。
进一步可选地，对于每个下行传输单元集合而言，DCI的信令中的相关字段，如counter DAI和/或total DAI可用于指示当前时刻该集合中需要进行响应的下行传输单元的个数。示例性地，以图10A为例，下行传输单元集合1包括三个下行传输单元(传输单元1，2和3)，则在传输单元1上，total DAI＝1，在传输单元2上，total DAI＝2，表示当前需要响应的有2个下行传输单元；在传输单元3上，total DAI＝3，表示当前需要响应的有3个下行传输单元。而在下行传输单元集合3中，指示需要响应的下行传输单元集合个数为2，即集合1和3，此时在下行传输单元集合3中的DAI指示也要进行调整/更新，即在传输单元8上，total DAI＝4，在传输单元9上，total DAI＝5，表示当前需要响应的有5个下行传输单元；在传输单元10上，total DAI＝6，表示当前需要响应的有6个下行传输单元。即total DAI用于指示UE需要进行响应的总的下行传输单元的个数，该个数等于需要进行响应的一个或多个下行传输单元集合中包含的下行传输单元的个数的总和。
可以理解的，对于传输单元集合内响应比特数的指示，如通过DAI进行的指示，在本发明中均可按照上述方式实施，以下不再赘述。可选的，对于对于集合内响应比特数的指示，也可以在现有的DAI机制上做其他调整，本发明不做限制。
如果Wt大于或者等于2，且所述第一下行传输单元集合中所有下行传输单元上的Wt发生B次改变，则所述Wt个下行传输单元集合的接收响应包括第一集合的接收响应，第二集合的接收响应和第三集合的接收响应；其中，所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；所述第二集合的接收响应包括A个下行传输单元集合的接收响应，所述A个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在B次改变中，每一次改变后的第一个下行传输单元之前的一个上行传输单元中，发送的C个下行传输单元集合的接收响应，其中，A，B和C为大于或等于1的整数，B小于或等于A， C小于等于A；所述第三集合包括D个下行传输单元集合的接收响应，所述D个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在E个上行传输单元中发送的D个下行传输单元集合的接收响应，其中E和D为大于或等于0的整数，E小于或等于D；其中，D个下行传输单元集合不包括第一集合和第二集合中包括的下行传输单元集合；其中，所述E个上行传输单元位于所述第一下行传输单元集合之前；其中，A+D+1＝Wt。可选的，E个上行传输单元是按照时间顺序(逆序)确定的。可选的，B次改变中每一次改变后的第一个下行传输单元之前的一个上行传输单元具体可以包括，B次改变中每一次改变后的第一个下行传输单元之前最近的一个上行传输单元。可选的，A＝∑ iC i,i＝1,…B,C i为B次改变中第i次改变后的第一个下行传输单元之前的一个上行传输单元中所发送的Ci个下行传输单元集合的接收响应。其中当B＝1时，C＝A。
结合所述第一下行传输单元集合中所有下行传输单元上的Wt均相同部分的论述，可以理解的是，UE在识别哪些下行传输单元集合的接收响应是需要发送的接收响应时，是通过(按照时间顺序，例如时间顺序逆序)向前寻找上行传输单元获得的。首先UE寻找B次改变后的每一次改变后的第一个下行传输单元之前(最近)的一个上行传输单元中，UE需要发送的下行传输单元集合的接收响应是几个，以及是哪几个。如果寻找到的B个上行传输单元上需要发送的下行传输单元集合的响应的个数累计为Wt-1(其中重复的下行传输单元集合只算一次)时，则不再寻找该下行传输单元集合之外的且在该下行传输单元集合之前的上行传输单元。如果寻找到的B个上行传输单元上需要发送的下行传输单元集合的响应的个数累计小于Wt-1，则寻找该下行传输单元集合之外的且在该下行传输单元集合之前的上行传输单元。在累计向前寻找的上行传输单元上需要UE发送的下行传输单元集合的响应的个数为Wt-A-1(其中重复的下行传输单元集合只算一次)时，则不在向前寻找上行传输单元。
以图10A为例，下行传输单元集合5中所有下行传输单元(传输单元15,16和18)上的Wt发生1次改变，即从传输单元15,16上的3变成传输单元18上的5。则所述5个下行传输单元集合的接收响应包括第一集合的接收响应，第二集合的接收响应和第三集合的接收响应。其中，所述第一集合的接收响应包括下行传输单元集合5的接收响应。所述网络设备指示所述UE，在最后1次改变中，改变后的第一个下行传输单元(传输单元18)之前的一个上行传输单元(传输单元17)中，发送的2个下行传输单元集合的接收响应，即下行传输单元集合2和4的接收响应。因此，所述第二集合的接收响应包括2个下行传输单元集合的接收响应。网络设备指示UE在下行传输单元集合5前的1个上行传输单元中发送的2个下行传输单元集合的接收响应，即下行传输单元集合1和3的接收响应，因此，第三集合包括2个下行传输单元集合的接收响应。在下行传输单元集合5对应的上行传输单元(传输单元21)中发送5个下行传输单元集合的接收响应，即下行传输单元集合1-5的接收响应。
如上所述，UE在识别哪些下行传输单元集合的接收响应是需要发送的接收响应时，是通过向前寻找上行传输单元获取的。如果UE获取指示偏移K的信息，则UE向前寻找上行传输单元时需要先向前数K个传输单元之后，再寻找上行传输单元。可以理解的是，UE还可能获取网络设备指示延时J的信息。由于网络设备处理能力的限制，网络设备存在指示延时J(或者称为处理延时)，如果网络设备在传输单元n上未成功收到接收响应，则不能立即指示UE，最早只能在传输单元n+J上指示，如果传输单元n+J不是下行传输单 元，则在传输单元n+J之后最近的下行传输单元上指示。
当UE获取指示偏移K的信息时，所述第一下行传输单元集合之前的E个上行传输单元包括，所述第一下行传输单元集合向前偏移K个传输单元之前的E个上行传输单元。以图10C为例,K＝3，UE在下行传输单元集合4包括的两个下行传输单元(传输单元12和13)收到Wt＝2，则所述网络设备指示所述UE在位于下行传输单元集合4包括的第一个下行传输单元(传输单元12)向前偏移3个传输单元(是传输单元9)之前的1个上行传输单元(传输单元7)中发送的1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响。
当UE获取指示网络设备指示延时J的信息时，其中，J为大于等于0的正整数；J大于等于1，则所述第一下行传输单元集合之前的E个上行传输单元包括，所述第一下行传输单元集合向前偏移J-1个传输单元之前的E个上行传输单元。以图10C为例,J＝4，UE在下行传输单元集合4包括的两个下行传输单元(传输单元12和13)收到Wt＝2，则所述网络设备指示所述UE在位于下行传输单元集合4包括的第一个下行传输单元(传输单元12)向前偏移4-1个传输单元(是传输单元9)之前的1个上行传输单元(传输单元7)中发送的1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响。
当UE获取指示偏移K的信息时，每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏移个K传输单元之前。以图10B为例,K＝1，下行传输单元集合3包括三个下行传输单元(传输单元8,9和10)，下行传输单元集合3中，Wt发生一次变化。所述网络设备指示所述UE，在1次改变后的第一个下行传输单元(传输单元9)向前偏移1个传输单元之前的1个上行传输单元(传输单元7)中，发送的1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响应。
当UE获取指示网络设备指示延时J的信息时，其中，J为大于等于0的正整数；每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏移个J-1传输单元之前。以图10B为例,J＝2，下行传输单元集合3包括三个下行传输单元(传输单元8,9和10)，下行传输单元集合3中，Wt发生一次变化。所述网络设备指示所述UE，在1次改变后的第一个下行传输单元(传输单元9)向前偏移2-1个传输单元之前的1个上行传输单元(传输单元7)中，发送的1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响应。或者还可以认为是，所述网络设备指示所述UE，在1次改变后的第一个下行传输单元(传输单元9)减去J后所指示的上行传输单元(传输单元9-2)中，发送的1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响应。
如果UE获取索引；则503为UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述索引对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。UE可以在一个或者多个下行传输单元上接收所述下行传输单元集合的索引，该一个或者多个下行传输单元可以与发送指示数量Wt的信息的一个或者多个下行传输单元相同或者不同。除了接收网络设备发送的该索引外，UE还可以提前获取该索引。
本申请提供的指示方法，通过UE获取索引，进一步增加了指示方法的正确率，提高通信质量和效率。
图6是本申请另一种指示方法的流程示意图。如图6所示：该指示方法包括：
S601，网络设备确定指示数量Wt的信息，其中，Wt为大于等于1的正整数；其中， 所述指示数量Wt的信息用于指示所述网络设备需要收到的Wt个下行传输单元集合的接收响应；所述需要收到的Wt个下行传输单元集合的接收响应包括：当前下行传输单元所在的下行传输单元集合的接收响应，和所述网络设备在历史上未成功收到的Wt-1个下行传输单元集合的接收响应。所述网络设备在历史上未成功收到的Wt-1下行传输单元集合的接收响应不包括：所述网络设备未成功收到，且所述网络设备已经在所述下行传输单元集合之前的一个或者多个下行传输单元上指示过所述UE发送的一个或多个下行传输单元集合的接收响应。以图8C为例，网络设备在下行传输单元7发送的指示数量Wt的信息指示Wt＝2，当前下行传输单元所在的下行传输单元集合的接收响应是下行传输单元集合4的接收响应，所述网络设备在历史上未成功收到的下行传输单元集合的接收响应包括下行传输单元集合1和2，但是因为网络设备已经在下行传输单元集合4之前的2个下行传输单元(传输单元4和5)上指示过下行传输单元集合1的接收响应。因此，所述网络设备在下行传输单元7上不再指示UE发送下行传输单元集合1的接收响应。
S602，所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wt的信息。
可选的，S603，所述网络设备在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应；其中，所述一个下行传输单元集合对应一个上行传输单元。
可选的S604,所述网络设备在下行传输单元集合包括一个或多个下行传输单元上，还向所述UE发送所述下行传输单元集合的索引；其中，一个索引与一个下行传输单元集合对应。所述网络设备在所述索引对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应。
本申请提供的指示方法，通过网络设备发送取索引，进一步增加了指示方法的正确率，提高通信质量和效率。
如果所述网络设备在连续的多个上行传输单元中的任意一个上行传输单元上，未成功收到一个或者多个下行传输单元集合的接收响应，则所述网络设备，在所述连续的多个上行传输单元中的每个上行传输单元上，需要收到的一个或者多个下行传输单元集合的接收响应，均为未成功收到的一个或者多个下行传输单元集合的接收响应。应该理解的是，这里的连续的是指紧邻的，中间不插入下行传输单元的情况。以图9A为例，传输单元3和4认为是连续的上行传输单元，传输单元4和8则不认为是连续的上行传输单元。网络设备在传输单元3上未成功收到下行传输单元集合1的接收响应，网络设备在传输单元4上成功收到下行传输单元集合2的接收响应。在传输单元5之前的传输单元3和4是两个连续的上行传输单元，在其中一个上行传输单元上，网络网络设备未成功收到1个下行传输单元集合的接收响应，则网络设备为了防止UE发生混淆，认为网络设备未成功收到UE在传输单元3和4发送的2个下行传输单元集合的接收响应，因此网络设备在传输单元5上发送指示数量Wt的信息，指示Wt＝3。
本申请提供的指示方法，通过网络设备指示其需要收到的下行传输单元集合的接收响，避免了接收响应没有被UE发送，或者没有被网络设备成功收到时，通信发生混乱的问题。减少了整个通信系统的差错率，提高通信质量和效率。
下面结合图5和图6，以TDD模式下不同的传输场景为例，介绍本申请的指示方法。
在介绍具体指示方法之前，对附图7至附图10做如下说明。下行传输单元和传输单元占用的时间资源的长度可以相同也可以不同。由于篇幅限制下行传输单元集合简称“集合”。由于画图的原因，一个下行传输单元集合看起来包括了传输单元，但是应该理解，本申请中的下行传输单元集合只包括下行传输单元，不包括上行传输单元。在图7-图10中，指示UE在当前下行传输单元所在的下行传输单元集合对应传输单元中，需要反馈的下行传输单元集合的总数记做Wt，Wt＝1指示UE在当前下行传输单元集合对应传输单元中，需要反馈的下行传输单元集合的总数为1，及1个下行传输单元集合的接收响应需要发送。
图7是本申请一种指示方法的示意图，如图7所示，传输单元1和传输单元2组成下行传输单元集合1，传输单元4组成下行传输单元集合2，传输单元5组成下行传输单元集合3，传输单元7，传输单元9和传输单元10组成下行传输单元集合4。下行传输单元集合1对应的上行传输单元1是传输单元3，下行传输单元集合2对应的上行传输单元2是传输单元6，下行传输单元集合3对应的上行传输单元3是传输单元8，下行传输单元集合4对应的上行传输单元4是传输单元n，n为大于等于1的正整数。
如图7A所示，网络设备在传输单元1和2上发送指示数量的信息，UE获取Wt＝1，则UE知道在上行传输单元1(传输单元3)上发送1个下行传输单元集合，即下行传输单元集合1的接收响应。网络设备在传输单元3上未能成功收到下行传输单元集合1的接收响应。网络设备在传输单元4上发送指示数量的信息，UE获取Wt＝2，则UE知道在上行传输单元2(传输单元6)上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合1和下行传输单元集合2的接收响应。网络设备传输单元5上发送指示数量的信息，UE获取Wt＝1，则UE知道在上行传输单元3(传输单元8)上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合3的接收响应。UE在传输单元6上成功发送2个下行传输单元集合的接收响应。网络设备传输单元7上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元n上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合4的接收响应。网络设备在传输单元8上未成功收到UE发送的接收响应。网络设备在传输单元9上发送指示数量的信息，UE获取Wt＝2，则UE知道在传输单元n上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合3和下行传输单元集合4的接收响应。网络设备传输单元10上发送指示数量的信息，UE获取Wt＝2，则UE知道在传输单元n上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合3和下行传输单元集合4的接收响应。
结合图7A，如图7B所示，由于网络设备在传输单元5上发送指示数量的信息时，网络设备没有收到UE在传输单元6上发送的2个下行传输单元集合的接收响，因此无法判断是否能够成功收到接收响应。因此，网络设备可以将Wt设置为等于2。UE获取Wt＝2，则UE知道在传输单元8上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合1和下行传输单元集合3的接收响应。网络设备传输单元9和传输单元10上发送指示数量的信息，UE获取Wt＝3，则UE知道在传输单元n上发送3个下行传输单元集合的接收响应，即发送下行传输单元集合1，下行传输单元集合3和下行传输单元集合4的接收响应。
结合图7A，如图7C所示，UE在传输单元3上成功发送下行传输单元集合1的接收响应。网络设备传输单元4上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元6上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合2的接收响应。
结合图7A，如图7D所示，网络设备在传输单元6上未能成功收到UE发送的2个下行传输单元集合的接收响应。网络设备传输单元7，传输单元9和传输单元10上发送指示数量的信息，UE获取Wt＝3，则UE知道在传输单元n上发送3个下行传输单元集合的接收响应，即发送下行传输单元集合1，下行传输单元集合,2和下行传输单元集合4的接收响应。
结合图7中的描述，图8是本申请另一种指示方法的示意图。如图8所示，传输单元1组成下行传输单元集合1，传输单元2组成下行传输单元集合2，传输单元4和传输单元5组成下行传输单元集合3，传输单元7，传输单元9和传输单元10组成下行传输单元集合4。
如图8A所示，网络在传输单元2上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元6上发送1个下行传输单元集合的接收响应，即下行传输单元集合2的接收响应。网络设备在传输单元3上未能成功收到UE发送的下行传输单元集合1的接收响应。网络设备传输单元4和传输单元5上发送指示数量的信息，UE获取Wt＝2，则UE知道在传输单元8上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合1和下行传输单元集合3的接收响应。UE在传输单元6上成功发送1个下行传输单元集合的接收响应，即成功发送下行传输单元集合2的接收响应。网络设备传输单元7上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元n上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合4的接收响应。因为下行传输单元集合1的接收响应已经在传输单元4和5发送的指示信息中调度过了，因此，在传输单元7上，wt＝1。网络设备在传输单元8上未能成功收到UE发送接收响应。网络设备传输单元9和传输单元10上发送指示数量的信息，UE获取Wt＝3，则UE知道在传输单元n上发送3个下行传输单元集合的接收响应，即发送下行传输单元集合1，下行传输单元集合3和下行传输单元集合4的接收响应。
结合图8A，如图8B所示，网络设备传输单元7和传输单元8上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元n上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合4的接收响应。
结合图8A，如图8C所示，网络设备在传输单元6上未能成功收到UE发送的1个下行传输单元集合的接收响应，即未成功收到下行传输单元集合2的接收响应。网络设备在传输单元7，传输单元9和传输单元10上发送指示数量的信息，UE获取Wt＝2，则UE知道在传输单元n上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合2和下行传输单元集合4的接收响应。因为下行传输单元集合1的接收响应已经在传输单元4和5发送的指示信息中调度过了，因此，在传输单元7上，wt＝2。UE在传输单元8上成功发送2个下行传输单元集合的接收响应，即成功发送下行传输单元集合1和下行传输单元集合3的接收响应。
结合图8A，如图8D所示，网络设备在传输单元6上未能成功收到UE发送的1个下行传输单元集合的接收响应，即成功发送下行传输单元集合2的接收响应。网络设备在传输单元7发送指示数量的信息，UE获取Wt＝3，则UE知道在传输单元n上发送3个下行传输单元集合的接收响应，即发送下行传输单元集合1，下行传输单元集合2和下行传输单元集合4的接收响应。因为，对于网络设备来说，下行传输单元集合1和2的接收响应在 调度传输单元7时还没有成功收到，因此Wt＝3。UE在传输单元8上成功发送2个下行传输单元集合的接收响应，即成功发送下行传输单元集合1和下行传输单元集合3的接收响应。网络设备在传输单元9和传输单元10上发送指示数量的信息，UE获取Wt＝2，则UE知道在传输单元n上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合2和下行传输单元集合4的接收响应。
结合图8A，如图8E所示，网络设备在传输单元6上未能成功收到UE发送的1个下行传输单元集合的接收响应，即成功发送下行传输单元集合2的接收响应。网络设备在传输单元7，UE获取Wt＝3，则UE知道在传输单元n上发送3个下行传输单元集合的接收响应，即发送下行传输单元集合1，下行传输单元集合2和下行传输单元集合4的接收响应。因为，对于网络设备来说，下行传输单元集合1和2的接收响应在调度传输单元7时还没有成功收到，因此Wt＝3。网络设备在传输单元8上未能成功收到UE发送的2个下行传输单元集合的接收响应，即未能成功收到下行传输单元集合1和下行传输单元集合3的接收响应。网络设备在传输单元9和传输单元10上发送指示数量的信息，UE获取Wt＝4，则UE知道在传输单元n上发送4个下行传输单元集合的接收响应，即发送下行传输单元集合1，下行传输单元集合2，下行传输单元集合3和下行传输单元集合4的接收响应。
结合图7和/或图8中的描述，图9是本申请另一种指示方法的示意图。如图9所示，传输单元1组成下行传输单元集合1，传输单元2组成下行传输单元集合2，传输单元6和传输单元5组成下行传输单元集合3，传输单元7，传输单元9和传输单元10组成下行传输单元集合4。下行传输单元集合1对应的上行传输单元1是传输单元3，下行传输单元集合2对应的上行传输单元2是传输单元4，下行传输单元集合3对应的上行传输单元3是传输单元8，下行传输单元集合4对应的上行传输单元4是传输单元n，n为大于等于1的正整数。
如图9A所示，网络设备在传输单元1上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元3上发送1个下行传输单元集合，即下行传输单元集合1的接收响应。网络在传输单元2上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元4上发送1个下行传输单元集合的接收响应。网络设备在传输单元3上未能成功收到UE发送的下行传输单元集合1的接收响应。UE在传输单元4上成功发送下行传输单元集合2的接收响应。网络设备在传输单元5和6上发送指示数量的信息，UE获取Wt＝3，则UE知道在传输单元3上发送3个下行传输单元集合，即下行传输单元集合1,2和3的接收响应。此时，尽管网络设备只未成功收到的下行传输单元集合1的接收响应，但是由于在传输单元5之前有传输单元3和传输单元4。如果Wt＝2，则UE有可能反馈传输单元4对应的下行传输单元集合2的接收响应，或者无法判断到底需要重新反馈哪个传输单元对应的下行传输单元集合。因此，网络设备在传输单元5和6上发送指示数量的信息，指示UE需要发送3个下行传输单元集合的接收响应。网络设备传输单元7上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元n上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合4的接收响应。网络设备在传输单元8上未能成功收到UE发送的下行传输单元集合1,2和3的接收响应。网络设备传输单元9和10上发送指示数量的信息，UE获取Wt＝4，则UE知道在传输单元n上发送4个下行传输单元集合的接收响应，即发送下行传输单元集合1,2，3和4的接收响应。
结合图9A，在图9B中，UE在传输单元8上成功发送下行传输单元集合1,2和3的接收响应。网络设备传输单元9和10上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元n上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合4的接收响应。
结合图9A,在图9C中,UE在传输单元3上成功发送下行传输单元集合1的接收响应。网络设备在传输单元4上未能成功收到UE发送的下行传输单元集合2的接收响应。网络设备在传输单元5和6上发送指示数量的信息，指示UE需要发送3个下行传输单元集合的接收响应，即发送下行传输单元集合1,2和3的接收响应。
结合图9A,在图9D中,网络设备在传输单元3上未能成功收到UE发送的下行传输单元集合1的接收响应。网络设备在传输单元4上未能成功收到UE发送的下行传输单元集合2的接收响应。网络设备在传输单元5和6上发送指示数量的信息，指示UE需要发送3个下行传输单元集合的接收响应，即发送下行传输单元集合1,2和3的接收响应。网络设备传输单元7上发送指示数量的信息，UE获取Wt＝4，则UE知道在传输单元n上发送4个下行传输单元集合的接收响应，即发送下行传输单元集合1,2,3和4的接收响应。网络设备在传输单元8上未能成功收到UE发送的下行传输单元集合1,2和3的接收响应。网络设备传输单元9和10上发送指示数量的信息，UE获取Wt＝4，则UE知道在传输单元n上发送4个下行传输单元集合的接收响应，即发送下行传输单元集合1,2，3和4的接收响应。
结合图9D,在图9E中,UE在传输单元8上成功发送下行传输单元集合1,2和3的接收响应。网络设备传输单元9和10上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元n上发送1个下行传输单元集合的接收响应，即发送下行传输单元集合4的接收响应。
结合图7-9任意附图中的描述，图10是本申请另一种指示方法的示意图。如图10所示结合图7-9任意附图中的描述，图10是本申请一种指示方法的示意图。如图10所示传输单元1，2和3组成下行传输单元集合1，传输单元4，5和6组成下行传输单元集合2，传输单元8，9和10组成下行传输单元集合3，传输单元12和13组成下行传输单元集合4，传输单元15，16和18组成下行传输单元集合5，传输单元19和20组成下行传输单元集合6。下行传输单元集合1对应的上行传输单元1是传输单元7，下行传输单元集合2对应的上行传输单元2是传输单元11，下行传输单元集合3对应的上行传输单元3是传输单元14，下行传输单元集合4对应的上行传输单元4是传输单元17，下行传输单元集合5对应的上行传输单元5是传输单元21，下行传输单元集合6对应的上行传输单元6是传输单元22。
在图10A中，指示偏移K的信息等于0，即网络设备没有指示时延，如图10A所示，网络设备在传输单元1，2和3上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元7上发送1个下行传输单元集合，即下行传输单元集合1的接收响应。网络在传输单元元4，5和6上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元11上发送1个下行传输单元集合的接收响应。
网络设备在传输单元7上未能成功收到下行传输单元集合1的接收响应。对于未成功收到的UE在传输单元1上发送的下行传输单元集合1的接收响应而言，网络设备可以立 即在传输单元8上进行重新指示，即在传输单元8中指示UE在传输单元14将下行传输单元集合1和3的接收响应进行反馈，因此wt＝2。网络设备在传输单元8,9和10上发送指示数量的信息，UE获取Wt＝2，则UE知道在传输单元14上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合1和下行传输单元集合3的接收响应。
网络设备在传输单元11上未能成功收到下行传输单元集合2的接收响应。对于未成功收到的UE在传输单元11上发送的下行传输单元集合2的接收响应而言，网络设备可以立即在传输单元12上进行重新指示，即在传输单元12中指示UE在传输单元17将下行传输单元集合2和4的接收响应进行反馈，因此wt＝2。网络设备在传输单元12和13上发送指示数量的信息，UE获取Wt＝2，则UE知道在传输单元17上发送2个下行传输单元集合的接收响应，即发送下行传输单元集合2和下行传输单元集合4的接收响应。
网络设备在传输单元14上未能成功收到下行传输单元集合1和3的接收响应。对于未成功收到的UE在传输单元14上发送的下行传输单元集合1和3的接收响应而言，网络设备可以立即在传输单元15上进行重新指示，即在传输单元15中指示UE在传输单元17将下行传输单元集合1,3和5的接收响应进行反馈，因此wt＝3。
网络设备在传输单元17上未能成功收到下行传输单元集合2和4的接收响应。对于未成功收到的UE在传输单元17上发送的下行传输单元集合2和4的接收响应而言，网络设备可以立即在传输单元18上进行重新指示，即在传输单元18中指示UE在传输单元21将下行传输单元集合2和4的接收响应进行反馈；同时由于，下行传输单元集合1,3和5的接收响应也没有被网络成功收到，且没有被重新指示过。因此wt＝5。网络设备在传输单元18上发送指示数量的信息，UE获取Wt＝5，则UE知道在传输单元21上发送5个下行传输单元集合的接收响应，即下行传输单元集合1,2，3，4和5的接收响应。应该理解是，由于传输单元15,16和18属于同一个下行传输单元集合，因为认为在传输单元15,16中指示发送下行传输单元集合1,3和5的接收响应对于下行传输单元18来说，网络设备不认为下行传输单元集合1,3和5被重新指示过。
网络设备在传输单元19和20上发送指示数量的信息，UE获取Wt＝1，则UE知道在传输单元22上发送1个下行传输单元集合，即下行传输单元集合6的接收响应。
结合图10A，如图10B所示，在图10B中指示偏移K的信息，指示K＝1，即网络设备的延时为2个传输单元，如图108所示：
网络设备在传输单元7上未能成功收到下行传输单元集合1的接收响应。对于未成功收到的UE在传输单元7上发送的下行传输单元集合1的接收响应而言，网络设备不能立即在传输单元8上进行重新指示，传输单元8上指示的Wt仍为1。网络设备在传输单元7+2上能够指示UE需要发送2个下行传输单元集合的接收响应，即在传输单元9中指示UE在传输单元14将下行传输单元集合1和3的接收响应进行反馈。UE获取Wt＝2，因为Wt发送一次变化，所以UE获取1个下行传输单元集合的接收响应是，传输单元9向前偏移1个传输单元之前的上行传输单元(传输单元7)需要反馈的1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响应。
网络设备在传输单元11上未能成功收到下行传输单元集合2的接收响应。对于未成功收到的UE在传输单元11上发送的下行传输单元集合2的接收响应而言，网络设备不能立即在传输单元12上进行重新指示，传输单元12上指示的Wt仍为1。网络设备在传输单元11+2上能够指示UE需要发送2个下行传输单元集合的接收响应，即在传输单元13 中指示UE在传输单元17中，将下行传输单元集合2和4的接收响应进行反馈。UE获取Wt＝2，因为Wt发送一次变化，UE获取2-1个下行传输单元集合的接收响应是，传输单元13向前偏移1个传输单元之前的上行传输单元(传输单元11)需要反馈的1个下行传输单元集合的接收响应，即下行传输单元集合2的接收响应。
网络设备在传输单元14上未能成功收到下行传输单元集合1和3的接收响应。对于未成功收到的UE在传输单元14上发送的下行传输单元集合1和3的接收响应而言，网络设备不能立即在传输单元15上进行重新指示，传输单元15上指示的Wt仍为1。网络设备在传输单元14+2上能够指示UE需要发送3个下行传输单元集合的接收响应，即在传输单元16中指示UE在传输单元21中，将下行传输单元集合1，3和5的接收响应进行反馈。UE获取Wt＝3，因为Wt发送一次变化，UE获取3-1个下行传输单元集合的接收响应是，传输单元16向前偏移1个传输单元之前的上行传输单元(传输单元14)需要反馈的2个下行传输单元集合的接收响应，即下行传输单元集合1和3的接收响应。
网络设备在传输单元17上未能成功收到下行传输单元集合2和4的接收响应。对于未成功收到的UE在传输单元17上发送的下行传输单元集合2和4的接收响应而言，网络设备不能立即在传输单元18上进行重新指示，传输单元18上指示的Wt仍为3。网络设备在传输单元17+2上能够指示UE需要发送3个下行传输单元集合的接收响应，即在传输单元19中指示UE在传输单元22中，将下行传输单元集合2，4和6的接收响应进行反馈。UE获取Wt＝3，因为Wt未发生变化，UE获取3-1个下行传输单元集合的接收响应是，下行传输单元集合6的第一个下行传输单元19向前偏移1个传输单元之前的上行传输单元(传输单元17)需要反馈的2个下行传输单元集合的接收响应，即下行传输单元集合2和4的接收响应。
结合图10B，在图10C中指示偏移K的信息，指示K＝3，即网络设备的延时为4个传输单元，如图10C所示：
网络设备在传输单元7上未能成功收到下行传输单元集合1的接收响应。对于未成功收到的UE在传输单元7上发送的下行传输单元集合1的接收响应而言，网络设备不能立即在传输单元8，9,10上进行重新指示，传输单元8,9和10上指示的Wt仍为1。同时，由于传输单元7+4是上行传输单元，所以网络设备最早在传输单元12上能够指示UE需要发送2个下行传输单元集合的接收响应，即在传输单元12中指示UE在传输单元15将下行传输单元集合1和4的接收响应进行反馈。UE获取Wt＝2，因为Wt没有发送变化，所以UE获取1个下行传输单元集合的接收响应是，下行传输单元集合4的第一个传输单元12向前偏移3个传输单元之前的上行传输单元(传输单元7)需要反馈的1个下行传输单元集合的接收响应，即下行传输单元集合1的接收响应。
网络设备在传输单元11上未能成功收到下行传输单元集合2的接收响应。对于未成功收到的UE在传输单元11上发送的下行传输单元集合2的接收响应而言，网络设备不能立即在传输单元12上进行重新指示，传输单元12上指示的Wt仍为2。同时，由于传输单元11+4是上行传输单元，所以网络设备最早在传输单元16上能够指示UE需要发送2个下行传输单元集合的接收响应。对于下行传输单元集合5，因为包括3个传输单元16,17和18，所以根据最后一个下行传输单元(传输单元18)，UE获取需要在下行传输单元集合5对应的上行传输单元(传输单元21)上发送3个下行传输单元集合的接收响应。在传输单元18UE获取Wt＝3，因为Wt发生1次变化，UE获取1个下行传输单元集合的接收 响应是，传输单元18向前偏移3个传输单元之前的上行传输单元(传输单元14)需要反馈的1个下行传输单元集合的接收响应，即下行传输单元集合3的接收响应。UE获取另1个下行传输单元集合的接收响应是，下行传输单元集合5的第一个下行传输单元(传输单元16)向前偏移3个传输单元之前的上行传输单元(传输单元11)需要反馈的1个下行传输单元集合的接收响应，即下行传输单元集合2的接收响应。综上，在传输单元21上，UE共需要发送3个下行传输单元集合的接收响应，即下行传输单元集合2,3和5。
在传输单元20，UE获取Wt＝3，因为Wt未发生变化，UE获取2个下行传输单元集合的接收响应是，下行传输单元集合6的第一个下行传输单元(传输单元19)向前偏移3个传输单元之前的上行传输单元(传输单元15)需要反馈的2个下行传输单元集合的接收响应，即下行传输单元集合1和4的接收响应。综上，在传输单元22上，UE共需要发送3个下行传输单元集合的接收响应，即下行传输单元集合1,4和6。
图11A是本申请另一种指示方法的流程示意图。如图11A所示：该指示方法包括：
S1101，UE，在下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的比特图。其中，该比特图又可以称为比特地图(bitmap)。
所述比特图用于指示所述UE，在所述下行传输单元集合对应的上行传输单元上，发送一个或多个下行传输单元集合的接收响应。网络设备支持的最大下行传输单元集合的个数为M，其中，M为大于等于1的正整数，则所述比特图的比特数为M。所述比特图的一个比特位，用于指示所述UE是否发送一个下行传输单元集合的接收响应。
所述每个下行传输单元集合对应的接收响应中所包含的信息比特数(在一些实施方案中也可以称为HARQ-ACK feedback codebook的比特数等)，可以根据DCI信令中的相关指示确定，如LTE/NR系统中所定义的DAI字段，具体地，所述DAI字段包括counter DAI以及total DAI指示。可选的，对于所述DAI字段的指示，应结合需要进行响应下行传输单元集合的总数进行更新，示例性地，total DAI用于指示UE需要进行响应的总的下行传输单元的个数，该个数等于需要进行相应的一个或多个下行传输单元集合中包含的下行传输单元的个数的总和。
结合图12，网络设备支持的最大下行传输单元集合的个数为4，即M＝4，则该比特图为4个比特位的比特图。UE在下行传输单元集合包括的下行传输单元1上接收比特图0001。其中，该比特图的最后一个比特位用于指示UE是否发送下行传输单元集合1的接收响应。当该比特图的最后一个比特位为1时，用于指示UE发送下行传输单元集合1的接收响应发送；当该比特图的最后一个比特位为0时，用于指示UE不发送下行传输单元集合1的接收响应发送。
本申请提供的指示方法，通过指示UE哪几个下行传输单元集合的接收响，在哪一个上行传输单元上发送。避免了接收响应没有发送，或者没有被网络设备成功收到时，通信发生混乱的问题。减少了整个通信系统的差错率，提高通信质量和效率。
可选的，S1102，UE获取所述下行传输单元集合的索引。其中，一个所述索引与一个所述下行传输单元集合对应。
UE可以在一个或者多个下行传输单元上接收所述下行传输单元集合的索引，该一个或者多个下行传输单元可以与发送比特图的一个或者多个下行传输单元相同或者不同。除了接收网络设备发送的该索引外，UE还可以提前获取该索引。
结合图12，下行传输单元集合1的索引是1，则比特图的最后一个比特位用于指示UE是否发送索引1对应的下行传输单元集合1的接收响应。
本申请提供的指示方法，通过UE获取索引，进一步增加了指示方法的正确率，提高通信质量和效率。
可选的，S1103所述UE监听所述上行传输单元是否空闲。如果空闲则执行S1104，如果不空闲则不执行S1104。
一般地，UE在发送信号之前首先会监听上行传输单元(例如，非授权频谱，非授权信道)是否空闲。可以通过非授权频谱/信道上的接收功率的大小来判断其忙闲状态，如果接收功率小于一定门限，则认为非授权频谱/信道处于空闲状态，可以在所述非授权频谱/信道上发送信号，否则不发送信号。
可选的，S1104，所述UE在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或者多个下行传输单元集合的接收响应。
应该理解的是，即使UE执行S1104，网络设备有可能不能成功收到该一个或者多个下行传输单元集合的接收响应。
结合图12，UE在下行传输单元集合1对应的上行传输单元1(传输单元3)上发送所述比特图指示的下行传输单元集合1的接收响应。
在非授权频谱/信道/传输单元上，UE未成功发送接收响应的概率增大。当UE未成功发送接收响应时，尤其需要网络设备在后续传输中指示UE哪几个下行传输单元集合的接收响，应该在哪一个上行传输单元上发送，从而避免通信发生混乱，提高通信质量和效率。
图11B是本申请另一种指示方法的流程示意图。结合图11A的描述，如图11B所示：该指示方法包括：
S1111，网络设备确定比特图，其中，所述比特图用于指示网络设备需要收到一个或多个下行传输单元集合的接收响应。
需要收到的一个或多个下行传输单元集合的接收响应包括：当前下行传输单元所在的下行传输单元集合的接收响应，和所述网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应。该网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应不包括：该网络设备未成功收到，且该网络设备已经通过所述下行传输单元集合之前的一个或者多个下行传输单元上的比特图指示过的一个或多个下行传输单元集合的接收响应。结合图12所示，网络设备在传输单元4上发送比特图的时候，当前下行传输单元所在的下行传输单元集合的接收响应是传输单元集合3的接收响应，该网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应包括下行传输单元集合1的接收响应，所以在传输单元4上发送的比特图0101指示下行传输单元集合1和3。网络设备在下行传输单元7上发送比特图的时候，当前下行传输单元所在的下行传输单元集合的接收响应是下行传输单元集合4的接收响应，该网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应包括下行传输单元集合1和3的接收响应，但是由于网络设备已经通过下行传输单元集合4之前下行传输单元4和6上的比特图指示过，所以在下行传输单元7上发送的比特图1000不再指示下行传输单元集合1和3，仅指示下行传输单元集合4。
S1112，网络设备在下行传输单元集合包括的一个或多个第一下行传输单元上，向用 户设备UE发送所述比特图。
结合图12，网络设备在传输单元1,2,4,6-9上发送比特图。
可选的，S1113，所述网络设备在所述下行传输单元集合对应的上行传输单元上接收一个或多个下行传输单元集合的接收响应。
结合图12，网络设备在传输单元3,5,10,11，n上接收一个或多个下行传输单元集合的接收响应。
本申请提供的指示方法，通过网络设备指示其需要收到的下行传输单元集合的接收响是哪几个，避免了接收响应没有发送，或者没有被网络设备成功收到时，通信发生混乱的问题。减少了整个通信系统的差错率，提高通信质量和效率。
可选的，S1114，所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向所述UE发送下行传输单元集合的索引。其中，一个索引与一个下行传输单元集合对应。
本申请提供的指示方法，通过网络设备发送取索引，进一步增加了指示方法的正确率，提高通信质量和效率。
可选的，1115如果所述网络设备成功收到所述一个或多个下行传输单元集合的接收响应，则所述网络设备将所述一个或多个下行传输单元集合与所述一个或多个下行传输单元集合的索引解除绑定。
结合图12，网络设备在传输单元5上成功收到下行传输单元集合2的接收响应，则将下行传输单元集合2与索引2解除绑定。将索引2与下行传输单元集合5建立绑定关系。
本申请提供的指示方法，通过将下行传输单元集合与索引对应关系的解除和重新绑定，减小了比特图的比特位的个数，从而减轻了通信负载，提高了通信效率。
下面结合图11A和图11B，以TDD模式下的传输场景为例，介绍本申请的指示方法。在介绍具体之前，对附图12做如下说明。下行传输单元和传输单元占用的时间资源的长度可以相同也可以不同。由于篇幅限制下行传输单元集合简称“集合”。由于画图的原因，一个下行传输单元集合看起来包括了传输单元，但是应该理解，本申请中的下行传输单元集合只包括下行传输单元，不包括上行传输单元。
图12是本申请一种指示方法的指示方法示意图。UE需要在当前下行传输单元集合对应的传输单元上发送的接收响应用比特图指示，如图12所示，0001,0010,0101,1000等等是本申请中的比特图。如果，网络设备最大支持4个下行传输单元集合，即网络设备同一时间内最多只能支持4个下行传输单元集合的进程。每个下行传输单元集合还可以有对应的索引。
传输单元1组成下行传输单元集合1，其索引是1；传输单元2组成下行传输单元集合2，其索引是2；传输单元4和传输单元6组成下行传输单元集合3，其索引是3；传输单元7组成下行传输单元集合4，其索引是4；。由于网络设备在传输单元5上成功接收下行传输单元集合2的接收响应，因此，传输单元8和9又组成的下行传输单元集合的索引是2。下行传输单元集合1(和/或索引1)对应的传输单元是传输单元3，下行传输单元集合2(和/或索引2)对应的传输单元是传输单元5，下行传输单元集合3(和/或索引3)对应的传输单元是传输单元10，下行传输单元集合4(和/或索引4)对应的传输单元是传输单元11，新的下行传输单元集合2(或者称为下行传输单元集合5)(和/或索引2) 对应的传输单元是传输单元n，n为大于等于1的正整数。
网络设备在传输单元1上发送比特图0001，用0001指示UE在传输单元3上发送下行传输单元集合1的接收响应。网络设备在传输单元2上发送比特图0010，用0010指示UE在传输单元5上发送下行传输单元集合1的接收响应。网络设备在传输单元3上未成功接收下行传输单元集合1的接收响应，则传输单元1的索引1不能释放，即不能将索引1分配给其他下行传输单元集合。网络设备在传输单元4和6上发送比特图0101，用0101指示UE在传输单元10上发送下行传输单元集合1和3的接收响应。网络设备在传输单元5上成功接收下行传输单元集合2的接收响应，则传输单元2的索引2将被网络设备释放，即可以将索引2分配给其他下行传输单元集合。网络设备在传输单元7上发送比特图1000，用1000指示UE在传输单元11上发送下行传输单元集合4的接收响应。网络设备在传输单元8和9上发送比特图0010，用0010指示UE在传输单元n上发送新的下行传输单元集合2(或者称为下行传输单元集合5)的接收响应。新的下行传输单元集合2(或者称为下行传输单元集合5)的索引是之前被释放的索引2。对于UE而言，通过现有的NDI字段，可以判断该传输单元对应的传输是新传还是重传，因此可以准确发送新的下行传输单元集合2的接收响应。网络设备在传输单元10，11，n上分别成功接收下行传输单元集合3，4和2的接收响应，则传输单元3,4和2的索引3,4和2将被网络设备与其之前对应的下行传输单元集合3,4和5释放，即可以将索引3,4和2分配给其他下行传输单元集合。
下面结合上述一种或者多种指示方法，对UE确定下行传输单元集合的接收响应的一种方法做举例性的说明，UE根据指示数量Wt的信息和/或比特图确定下行传输单元集合的接收响应，如
Figure PCTCN2018121983-appb-000001
时，可根据伪代码的方式实现。应该理解的是，本申请侧重于网络设备对窗口/下行传输单元集合的指示，也就是伪代码中最外层循环的部分，至于内层循环的实现可以沿用现有的36.213或者38.213中的流程，或者可以对36.213或者38.213中的流程进行适应性的修改/调整。
举例来说，可根据如下伪代码实现：
初始化：
令w＝0–window index:即对应反馈窗口，或者下行传输单元集合的索引，可选的该
索引可以显示指示，或隐式指示
令c＝0–serving cell index:表示cell的索引，可选的该索引由RRC信令指示
令m＝0–subframe index/PDCCH with DCI format 1_0or DCI format 1_1monitoring occasion index:表示子帧/时隙的索引，或者表示收到PDCCH monitoring occasion的索引
令j＝0
令V temp＝0
令V temp2＝0
令
Figure PCTCN2018121983-appb-000002
令
Figure PCTCN2018121983-appb-000003
为配置给该UE的cell的总数
令M为PDCCH monitoring occasion的总数
令Wt为指示的反馈窗口，或者下行传输单元集合的个数伪代码：
Figure PCTCN2018121983-appb-000004
Figure PCTCN2018121983-appb-000005
下面结合上述一项或者多项指示方法对本申请涉及的网络设备或UE进行功能传输单元的划分，例如，可以对应各个功能划分各个功能传输单元，也可以将两个或两个以上的功能集成在一个传输单元中。上述集成的传输单元既可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。需要说明的是，本申请中对传输单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。图17示出了本申请提供的设备100的结构示意图，该设备100可应用于实现本申请网络设备或UE。参阅图13所示，设备100包括接收单元101、发送单元102和处理单元103。
当设备100用于实现网络设备的一种功能时，处理单元103用于确定指示数量Wt的信息，发送单元102用于在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wt的信息。可选的，发送单元102还用于在下行传输单元集合包括一个或多个下行传输单元上，还向所述UE发送所述下行传输单元集合的索引。可选的接收单元101用于在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应。
当设备100用于实现网络设备的另一种功能时，处理单元103用于确定比特图，发送单元102用于在下行传输单元集合包括的一个或多个第一下行传输单元上，向用户设备UE发送所述比特图。可选的，发送单元102还用于在下行传输单元集合包括的一个或多个下行传输单元上，向所述UE发送下行传输单元集合的索引。可选的接收单元101用于在所述下行传输单元集合对应的上行传输单元上接收一个或多个下行传输单元集合的接收响应。
当设备100用于实现UE的一种功能时，接收单元101用于在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wt的信息。可选的，处理单元103还用于监听所述上行传输单元是否空闲。可选的，还可以包括监听单元104(未在图上示出)，用于监听所述上行传输单元是否空闲。可选的，接收单元101还用于接收所述下行传输单元集合的索引。可选的，处理单元103用于获取所述下行传输单元集合的索引。可选的，发送单元102用于在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
当设备100用于实现UE的另一种功能时，接收单元101用于在下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的比特图。可选的，接收单元101还用于接收所述下行传输单元集合的索引。可选的，处理单元103用于获取所述下行传输单元集合的索引。可选的，处理单元103还用于监听所述上行传输单元是否空闲。可选的，还可以包括获取单元104(未在图上示出)，用于获取所述下行传输单元集合的索引。可选的，还可以包括监听单元104(未在图上示出)，用于监听所述上行传输单元是否空闲。可选的，发送单元102用于在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或者多个下行传输单元集合的接收响应。
应该理解的是，结合上述任一项或者多项的指示方法，网络设备和UE还可以包括更多的功能单元，用来实现更多的功能，从而避免通信发生混乱，提高通信质量和效率。
当网络设备或UE采用硬件形式实现时，其所涉及的与本申请相关的概念，解释和详细说明、指示方法、流程及步骤等请参见前述描述中关于这些内容的描述。本申请中，接收单元可以通过通信接口、接收器、接收电路等实现。发送单元可以通过通信接口、发送器、发送电路等实现。应当理解的是，接收单元和发送单元的功能还可以集成在二起，被通信接口、收发器、收发电路实现。其中，通信接口是统称，可以包括二个或多个接口。
可以理解的是，上述说明仅仅是硬件形式的简化示例，在实际应用中，实现网络设备或UE的硬件并不限于上述结构，例如还可以包括处理器，存储器，天线阵列，双工器以及基带处理部分。处理器可以是中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、硬件部件或者其任意组合。处理器也可以是实现计算功能的组合，例如包含二个或多个微处理器组合，DSP和微处理器的组合等等。存储器可以设置的处理器内，也可以单独存在。双工器用于实现天线阵列，既用于发送信号，又用于接收信号。发送器用于实现射频信号和基带信号之间的转换，通常发送器可以包括功率放大器，数模转换器和变频器，通常接收器可以包括低噪放，模数转换器和变频器。其中，接收器和发送器有时也可以统称为收发器。基带处理部分用于实现所发送或接收的信号的处理，比如层映射、预编码、调制/解调，编码/译码等，并且对于物理控制信道、物理数据信道、物理广播信道、参考信号等进行分别的处理。作为一种实现方式，接收器和发送器的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。作为另一种实现方式，将实现处理器、接收器和发送器功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器、接收器和发送器的功能。
例如，网络设备的实现方式可以参考图13，如图13所示，提供一种网络设备1000包括：处理器1001、存储器1004、接收器1003、发送器1002，所述接收器1003和发送器1002用于与其他网元通信，所述存储器1004用于存储能够被所述处理器1001执行的程序，所述程序包括用于实现上述本申请任意一种指示方法、步骤或者流程的指令。具体指示方法、流程、步骤以及有益效果等请参见前述实施例中关于这些内容的描述，在此不再赘述。再例如，网络设备的实现方式还可以参考图14。
例如，UE的实现方式可以参考图15，如图15所示，提供一种UE2000包括：处理器2001、存储器2003、收发器2002，该收发器2002用于与其他网元通信(可以通过天线与 其他网元通信)，所述存储器2003用于存储能够被所述处理器2001执行的程序，所述程序包括用于实现上述任意一种指示方法、步骤或者流程的指令。具体指示方法、流程、步骤以及有益效果等请参见前述实施例中关于这些内容的描述，在此不再赘述。再例如，UE的实现方式还可以参考图16。
当网络设备或UE通过软件实现时，其所涉及的与本申请相关的概念，解释和详细说明及其他步骤请参见前述指示方法中关于这些内容的描述。本申请中，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括二个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从二个计算机可读存储介质向另二个计算机可读存储介质传输，例如，所述计算机指令可以从二个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另二个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含二个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固响应硬盘Solid State DisK(SSD))等。所示存储介质可以集成在某设备、模块、处理器内，也可以分开设置。
根据本申请提供的指示方法，本申请还提供一种通信系统，其包括前述网络设备和UE。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (106)

  1. 一种指示方法，其特征在于，所述指示方法包括：
    用户设备UE，在下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的比特图；
    其中，所述比特图用于指示所述UE，在所述下行传输单元集合对应的上行传输单元上，发送一个或多个下行传输单元集合的接收响应。
  2. 根据权利要求1所述的指示方法，其特征在于，如果网络设备支持的最大下行传输单元集合的个数为M，其中，M为大于等于1的正整数，则所述比特图的比特数为M。
  3. 根据权利要求1或2所述的指示方法，其特征在于，所述比特图的一个比特位，用于指示所述UE是否发送一个下行传输单元集合的接收响应。
  4. 根据权利要求1-3任一项所述的指示方法，其特征在于，所述指示方法还包括，
    所述UE获取所述下行传输单元集合的索引，其中，一个所述索引与一个所述下行传输单元集合对应。
  5. 根据权利要求1-4任一项所述的指示方法，其特征在于，所述指示方法还包括，
    所述UE在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或者多个下行传输单元集合的接收响应。
  6. 根据权利要求1-5任一项所述的指示方法，其特征在于，
    所述指示方法还包括，所述UE监听所述上行传输单元是否空闲；
    所述UE在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或多个下行传输单元集合的接收响应包括，如果所述上行传输单元空闲，则所述UE在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或多个下行传输单元集合的接收响应。
  7. 一种指示方法，其特征在于，所述指示方法包括：
    网络设备确定比特图，其中，所述比特图用于指示网络设备需要收到一个或多个下行传输单元集合的接收响应；
    所述网络设备在下行传输单元集合包括的一个或多个第一下行传输单元上，向用户设备UE发送所述比特图。
  8. 根据权利要求7所述的指示方法，其特征在于，
    所述需要收到的一个或多个下行传输单元集合的接收响应包括：
    当前下行传输单元所在的下行传输单元集合的接收响应，和，
    所述网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应。
  9. 根据权利要求8所述的指示方法，其特征在于，
    所述网络设备历史上未成功收到的一个或多个下行传输单元集合的接收响应不包括：
    所述网络设备未成功收到，且所述网络设备已经通过所述下行传输单元集合之前的一个或者多个下行传输单元上的比特图指示过的一个或多个下行传输单元集合的接收响应。
  10. 根据权利要求7-9任一项所述的指示方法，其特征在于，
    所述网络设备支持的最大下行传输单元集合的个数为M，其中，M为大于等于1的正整数，则所述比特图的比特数为M。
  11. 根据权利要求7-10任一项所述的指示方法，其特征在于，所述比特图的一个比特用于指示一个下行传输单元集合。
  12. 根据权利要求7-11任一项所述的指示方法，其特征在于，
    所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向所述UE发送下行传输单元集合的索引；
    其中，一个索引与一个下行传输单元集合对应。
  13. 根据权利要求7-12任一项所述的指示方法，其特征在于，所述指示方法还包括，
    所述网络设备在所述下行传输单元集合对应的上行传输单元上接收一个或多个下行传输单元集合的接收响应。
  14. 根据权利要求13所述的指示方法，其特征在于，所述指示方法还包括，
    如果所述网络设备成功收到所述一个或多个下行传输单元集合的接收响应，则所述网络设备将所述一个或多个下行传输单元集合与所述一个或多个下行传输单元集合的索引解除绑定。
  15. 一种指示方法，其特征在于，所述指示方法包括：
    用户设备UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wt的信息，其中Wt为正整数或者0；
    所述用于指示数量Wt的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Wt个下行传输单元集合的接收响应。
  16. 根据权利要求15所述的指示方法，其特征在于，所述指示方法还包括，
    所述UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
  17. 根据权利要求16所述的指示方法，其特征在于，所述第一下行传输单元集合包括至少两个下行传输单元，
    则所述UE根据在所述一个或者多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应包括，所述UE根据在所述第一下行传输单元集合包括的最后一个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
  18. 根据权利要求15-17任一项所述的指示方法，其特征在于，
    Wt等于1，所述Wt个下行传输单元集合为所述第一下行传输单元集合。
  19. 根据权利要求15-18任一项所述的指示方法，其特征在于，Wt大于或者等于2，且所述第一下行传输单元集合中所有下行传输单元上的Wt均相同，则所述Wt个下行传输单元集合的接收响应包括：第一集合的接收响应和第三集合的接收响应；
    其中，
    所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；
    所述第三集合的接收响应包括Wt-1个下行传输单元集合的接收响应；
    其中，所述Wt-1个下行传输单元集合的接收响应包括，所述网络设备指示所述UE在位于所述第一下行传输单元集合之前的E个上行传输单元中发送的Wt-1个下行传输单元集合的响应，E小于或等于Wt-1。
  20. 根据权利要求15-18任一项所述的指示方法，其特征在于，Wt大于或者等于2，且所述第一下行传输单元集合中所有下行传输单元上的Wt发生B次改变，则所述Wt个下行传输单元集合的接收响应包括第一集合的接收响应，第二集合的接收响应和第三集合的接收响应；
    其中，
    所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；
    所述第二集合的接收响应包括A个下行传输单元集合的接收响应，所述A个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在B次改变中，每一次改变后的第一个下行传输单元之前的一个上行传输单元中，发送的C个下行传输单元集合的接收响应，其中，A，B和C为大于或等于1的整数，B小于或等于A，C小于等于A；
    所述第三集合包括D个下行传输单元集合的接收响应，所述D个下行传输单元集合的接收响应包括，所述网络设备指示所述UE，在所述第一下行传输单元集合之前的E个上行传输单元中发送的D个下行传输单元集合的接收响应；其中E和D为大于或等于0的整数，E小于或等于D，D个下行传输单元集合不包括第一集合和第二集合中包括的下行传输单元集合；
    其中，A+D+1＝Wt。
  21. 根据权利要求19或20所述的指示方法，其特征在于，所述指示方法还包括，所述UE获取指示偏移K的信息，其中，K为大于等于0的正整数；
    所述第一下行传输单元集合之前的E个上行传输单元包括，所述第一下行传输单元集合向前偏移K个传输单元之前的E个上行传输单元。
  22. 根据权利要求20所述的指示方法，其特征在于，所述指示方法还包括，所述UE获取指示偏移K的信息，其中，K为大于等于0的正整数；
    每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏移个K传输单元之前。
  23. 根据权利要求15-22任一项所述的指示方法，其特征在于，
    所述UE获取索引；其中，一个索引与一个下行传输单元集合对应。
  24. 根据权利要求23所述的指示方法，其特征在于，所述UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应包括，
    所述UE根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述索引对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
  25. 根据权利要求15-24任一项所述的指示方法，其特征在于，所述指示方法还包括，所述UE监听所述上行传输单元是否空闲；
    所述UE根据所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送接收响应包括，如果所述上行传输单元空闲，则所述UE根据所述一个或多个行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送接收响应。
  26. 根据权利要求15-25任一项所述的指示方法，其特征在于，所述指示数量Wt的信息，通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI指示。
  27. 根据权利要求26所述的指示方法，其特征在于，所述DCI包括下行分配指示DAI，所述DAI用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发Wu个下行传输单元的接收响应。
  28. 根据权利要求15-25任一项所述的方法所述的指示方法，其特征在于，所述方法还包括，
    所述UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wu的信息，其中，Wu为正整数或者0；
    所述指示数量Wu的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
  29. 根据权利要求28所述的方法所述的指示方法，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
  30. 根据权利要求27或29所述的指示方法，其特征在于，所述DAI中的总total DAI用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发Wu个下行传输单元的接收响应。
  31. 一种指示方法，其特征在于，所述指示方法包括：
    用户设备UE，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wu的信息，其中Wu为正整数或者0；
    所述指示数量Wu的信息，用于指示所述UE在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
  32. 根据权利要求31所述的指示方法，其特征在于，所述指示方法还包括，
    所述UE，根据在所述一个或多个下行传输单元上接收的指示数量Wu的信息，在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
  33. 根据权利要求32所述的方法所述的指示方法，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
  34. 一种指示方法，其特征在于，所述指示方法包括
    网络设备确定指示数量Wt的信息，其中，Wt为大于等于1的正整数；
    其中，所述指示数量Wt的信息用于指示所述网络设备需要收到的Wt个下行传输单元集合的接收响应；
    所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wt的信息。
  35. 根据权利要求34所述的指示方法，其特征在于，
    所述需要收到的Wt个下行传输单元集合的接收响应包括：
    当前下行传输单元所在的下行传输单元集合的接收响应，和所述网络设备在历史上未成功收到的Wt-1个下行传输单元集合的接收响应。
  36. 根据权利要求35所述的指示方法，其特征在于，
    所述网络设备在历史上未成功收到的Wt-1下行传输单元集合的接收响应不包括：
    所述网络设备未成功收到，且所述网络设备已经在所述下行传输单元集合之前的一个 或者多个下行传输单元上指示过的一个或多个下行传输单元集合的接收响应。
  37. 根据权利要求34-36任一项所述的指示方法，其特征在于，所述指示方法还包括，
    所述网络设备在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应；
    其中，所述一个下行传输单元集合对应一个上行传输单元。
  38. 根据34-37任意项所述的指示方法，其特征在于，所述网络设备在连续的多个上行传输单元中的任意一个上行传输单元上，未成功收到一个或者多个下行传输单元集合的接收响应，
    则所述网络设备，在所述连续的多个上行传输单元中的每个上行传输单元上，需要收到的一个或者多个下行传输单元集合的接收响应，均为未成功收到的一个或者多个下行传输单元集合的接收响应。
  39. 根据权利要求34-38任一项所述的指示方法，其特征在于，
    所述网络设备在下行传输单元集合包括一个或多个下行传输单元上，还向所述UE发送所述下行传输单元集合的索引；
    其中，一个索引与一个下行传输单元集合对应。
  40. 根据权利要求39所述的指示方法，其特征在于，所述网络设备接收在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应包括，
    所述网络设备在所述索引对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应。
  41. 根据权利要求34-40任一项所述的指示方法，其特征在于，所述指示数量Wt的信息，通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI指示。
  42. 根据权利要求41所述的指示方法，其特征在于，所述DCI包括下行分配指示DAI，所述DAI用于指示所述网络设备需要受到Wu个下行传输单元的接收响应。
  43. 根据权利要求34-40任一项所述的方法所述的指示方法，其特征在于，所述方法还包括，
    所述网络设备，在第一下行传输单元集合包括的一个或多个下行传输单元上，发送指示数量Wu的信息，其中，Wu为正整数或者0；
    所述指示数量Wu的信息，用于指示所述网络设备需要收到Wu个下行传输单元的接收响应。
  44. 根据权利要求43所述的方法所述的指示方法，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
  45. 根据权利要求42或44所述的指示方法，其特征在于，所述DAI中的总total DAI用于指示所述网络设备需要收到的Wu个下行传输单元的接收响应。
  46. 一种指示方法，其特征在于，所述指示方法包括：
    网络设备，确定指示数量Wu的信息，其中Wu为正整数或者0；
    其中，所述指示数量Wu的信息，用于指示所述网络设备需要收到Wu个下行传输单元的接收响应；
    所述网络设备在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wu的信息。
  47. 根据权利要求46所述的方法所述的指示方法，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的，下行控制信息DCI中的DAI指示.
  48. 根据权利要求1-47任一项所述的指示方法，其特征在于，下行传输单元集合的接收响应包括所述下行传输单元集合包括的一个或多个下行传输单元的接收响应。
  49. 根据权利要48所述的指示方法，其特征在于，下行传输单元包括一个或多个载波，则所述下行传输单元集合的接收响应包括所述下行传输单元集合包括的一个或多个下行传输单元包括的一个或多个载波的接收响应。
  50. 一种通信设备，其特征在于，所述通信设备包括存储器，处理器，和收发器；
    所述存储器用于存储指令；
    所述指令在所述处理器上运行，用于执行权利要求1-49任意一项或者多项所述的指示方法。
  51. 一种通信设备，其特征在于，所述通信设备用于执行权利要求1-49任意一项或者多项所述的指示方法。
  52. 计算机可读存储介质，其特征在于，所述计算机可读存储介质包括指令，当其在计算机上运行时，使得计算机执行权利要求1-49任意一项或者多项所述的指示方法。
  53. 一种程序产品，其特征在于，所述程序产品包括指令，当其在计算机上运行时，使得计算机执行权利要求1-49任意一项或者多项所述的指示方法
  54. 一种芯片，其特征在于，所述芯片包括：至少二个电路，所述电路用于执行权利要求1-49任意一项或者多项所述的指示方法。
  55. 一种芯片，其特征在于，所述芯片包括：处理器和存储器，所述存储器存储被所述处理器执行的指令，所述指令使得计算机执行权利要求1-49任意一项或者多项所述的指示方法。
  56. 一种芯片，其特征在于，所述芯片包括：处理器和收发器/收发管脚，所述处理执行权利要求1-49任意一项或者多项所述的指示方法。
  57. 一种芯片，其特征在于，所述芯片包括：处理器，当所述处理器运行指令时，使得计算机执行权利要求1-49任意一项或者多项所述的指示方法。
  58. 一种通信装置，其特征在于，所述通信装置包括：
    接收单元，用于在下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的比特图；
    其中，所述比特图用于指示所述通信装置，在所述下行传输单元集合对应的上行传输单元上，发送一个或多个下行传输单元集合的接收响应。
  59. 根据权利要求58所述的通信装置，其特征在于，如果网络设备支持的最大下行传输单元集合的个数为M，其中，M为大于等于58的正整数，则所述比特图的比特数为M。
  60. 根据权利要求58或59所述的通信装置，其特征在于，所述比特图的一个比特位，用于指示所述通信装置是否发送一个下行传输单元集合的接收响应。
  61. 根据权利要求58-60任一项所述的通信装置，其特征在于，所述通信装置还包括，
    获取单元，用于获取所述下行传输单元集合的索引，其中，一个所述索引与一个所述下行传输单元集合对应。
  62. 根据权利要求58-61任一项所述的通信装置，其特征在于，所述通信装置还包括，
    发送单元，用于在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或者多个下行传输单元集合的接收响应。
  63. 根据权利要求58-62任一项所述的通信装置，其特征在于，
    所述通信装置还包括，监听单元，用于监听所述上行传输单元是否空闲；
    所述接收单元具体用于如果所述上行传输单元空闲，则所述通信装置在所述下行传输单元集合对应的所述上行传输单元上发送所述比特图指示的一个或多个下行传输单元集合的接收响应。
  64. 一种通信装置通信装置，其特征在于，所述通信装置包括：
    处理单元，用于确定比特图，其中，所述比特图用于指示所述通讯设备需要收到一个或多个下行传输单元集合的接收响应；
    发送单元，用于在下行传输单元集合包括的一个或多个第一下行传输单元上，向用户设备UE发送所述比特图。
  65. 根据权利要求64所述的通信装置，其特征在于，
    所述需要收到的一个或多个下行传输单元集合的接收响应包括：
    当前下行传输单元所在的下行传输单元集合的接收响应，和，
    所述通信装置历史上未成功收到的一个或多个下行传输单元集合的接收响应。
  66. 根据权利要求65所述的通信装置，其特征在于，
    所述通信装置历史上未成功收到的一个或多个下行传输单元集合的接收响应不包括：
    所述通信装置未成功收到，且所述通信装置已经通过所述下行传输单元集合之前的一个或者多个下行传输单元上的比特图指示过的一个或多个下行传输单元集合的接收响应。
  67. 根据权利要求64-66任一项所述的通信装置，其特征在于，
    所述通信装置支持的最大下行传输单元集合的个数为M，其中，M为大于等于1的正整数，则所述比特图的比特数为M。
  68. 根据权利要求64-67任一项所述的通信装置，其特征在于，所述比特图的一个比特用于指示一个下行传输单元集合。
  69. 根据权利要求64-68任一项所述的通信装置，其特征在于，
    所述发送单元用于，在下行传输单元集合包括的一个或多个下行传输单元上，向所述UE发送下行传输单元集合的索引；
    其中，一个索引与一个下行传输单元集合对应。
  70. 根据权利要求64-69任一项所述的通信装置，其特征在于，所述通信装置还包括，
    接收单元，用于在所述下行传输单元集合对应的上行传输单元上接收一个或多个下行传输单元集合的接收响应。
  71. 根据权利要求70所述的通信装置，其特征在于，所述通信装置还包括，
    如果所述通信装置成功收到所述一个或多个下行传输单元集合的接收响应，则所述通信装置将所述一个或多个下行传输单元集合与所述一个或多个下行传输单元集合的索引 解除绑定。
  72. 一种通信装置，其特征在于，所述通信装置包括：
    处理单元，用于确定指示数量Wu的信息，其中Wu为正整数或者0；
    其中，所述指示数量Wu的信息，用于指示所述通信装置需要收到Wu个下行传输单元的接收响应；
    发送单元，用于在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wu的信息。
  73. 根据权利要求72所述的通信装置，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的，下行控制信息DCI中的DAI指示.
  74. 一种通信装置，其特征在于，所述通信装置包括：
    接收单元，用于在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wt的信息，其中Wt为正整数或者0；
    所述用于指示数量Wt的信息，用于指示所述通信装置在所述第一下行传输单元集合对应的上行传输单元上，发送Wt个下行传输单元集合的接收响应。
  75. 根据权利要求74所述的通信装置，其特征在于，所述通信装置还包括，
    发送单元，用于根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
  76. 根据权利要求75所述的通信装置，其特征在于，所述第一下行传输单元集合包括至少两个下行传输单元，
    则发送单元具体用于，根据在所述第一下行传输单元集合包括的最后一个下行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
  77. 根据权利要求74-76任一项所述的通信装置，其特征在于，
    Wt等于1，所述Wt个下行传输单元集合为所述第一下行传输单元集合。
  78. 根据权利要求74-77任一项所述的通信装置，其特征在于，Wt大于或者等于2，且所述第一下行传输单元集合中所有下行传输单元上的Wt均相同，则所述Wt个下行传输单元集合的接收响应包括：第一集合的接收响应和第三集合的接收响应；
    其中，
    所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；
    所述第三集合的接收响应包括Wt-1个下行传输单元集合的接收响应；
    其中，所述Wt-1个下行传输单元集合的接收响应包括，所述网络设备指示所述通信装置在位于所述第一下行传输单元集合之前的E个上行传输单元中发送的Wt-1个下行传输单元集合的响应，E小于或等于Wt-1。
  79. 根据权利要求74-77任一项所述的通信装置，其特征在于，Wt大于或者等于2，且所述第一下行传输单元集合中所有下行传输单元上的Wt发生B次改变，则所述Wt个下行传输单元集合的接收响应包括第一集合的接收响应，第二集合的接收响应和第三集合的接收响应；
    其中，
    所述第一集合的接收响应包括所述第一下行传输单元集合的接收响应；
    所述第二集合的接收响应包括A个下行传输单元集合的接收响应，所述A个下行传输单元集合的接收响应包括，所述网络设备指示所述通信装置，在B次改变中，每一次改变后的第一个下行传输单元之前的一个上行传输单元中，发送的C个下行传输单元集合的接收响应，其中，A，B和C为大于或等于1的整数，B小于或等于A，C小于等于A；
    所述第三集合包括D个下行传输单元集合的接收响应，所述D个下行传输单元集合的接收响应包括，所述网络设备指示所述通信装置，在所述第一下行传输单元集合之前的E个上行传输单元中发送的D个下行传输单元集合的接收响应；其中E和D为大于或等于0的整数，E小于或等于D，D个下行传输单元集合不包括第一集合和第二集合中包括的下行传输单元集合；
    其中，A+D+1＝Wt。
  80. 根据权利要求78或79所述的通信装置，其特征在于，所述通信装置还包括，获取单元，用于获取指示偏移K的信息，其中，K为大于等于0的正整数；
    所述第一下行传输单元集合之前的E个上行传输单元包括，所述第一下行传输单元集合向前偏移K个传输单元之前的E个上行传输单元。
  81. 根据权利要求79所述的通信装置，其特征在于，所述通信装置还包括，获取单元，用于获取指示偏移K的信息，其中，K为大于等于0的正整数；
    每一次改变后的第一个下行传输单元之前包括：每一次改变后的第一个下行传输单元向前偏移个K传输单元之前。
  82. 根据权利要求74-81任一项所述的通信装置，其特征在于，
    所述获取单元，用于获取索引；其中，一个索引与一个下行传输单元集合对应。
  83. 根据权利要求82所述的通信装置，其特征在于，所述发送单元，具体用于根据在所述一个或多个下行传输单元上接收的指示数量Wt的信息在所述索引对应的上行传输单元上发送Wt个下行传输单元集合的接收响应。
  84. 根据权利要求74-83任一项所述的通信装置，其特征在于，所述通信装置还包括，监听单元，用于监听所述上行传输单元是否空闲；
    所述发送单元还用于，如果所述上行传输单元空闲，则所述UE根据所述一个或多个行传输单元上接收的指示数量Wt的信息在所述第一下行传输单元集合对应的上行传输单元上发送接收响应。
  85. 根据权利要求74-84任一项所述的通信装置，其特征在于，所述指示数量Wt的信息，通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI指示。
  86. 根据权利要求85所述的通信装置，其特征在于，所述DCI包括下行分配指示DAI，所述DAI用于指示所述通信装置在所述第一下行传输单元集合对应的上行传输单元上，发Wu个下行传输单元的接收响应。
  87. 根据权利要求74-84任一项所述的方法所述的通信装置，其特征在于，所述接收单元还用于，在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wu的信息，其中，Wu为正整数或者0；
    所述指示数量Wu的信息，用于指示所述通信装置在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
  88. 根据权利要求87所述的方法所述的通信装置，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
  89. 根据权利要求86或88所述的通信装置，其特征在于，所述DAI中的总total DAI用于指示所述通信装置在所述第一下行传输单元集合对应的上行传输单元上，发Wu个下行传输单元的接收响应。
  90. 一种通信装置，其特征在于，所述通信装置包括：
    发送单元，用于在第一下行传输单元集合包括的一个或多个下行传输单元上，接收网络设备发送的指示数量Wu的信息，其中Wu为正整数或者0；
    所述指示数量Wu的信息，用于指示所述通信装置在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
  91. 根据权利要求90所述的通信装置，其特征在于，所述发送单元还用于根据在所述一个或多个下行传输单元上接收的指示数量Wu的信息，在所述第一下行传输单元集合对应的上行传输单元上，发送Wu个下行传输单元的接收响应。
  92. 根据权利要求91所述的方法所述的通信装置，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
  93. 一种通信装置，其特征在于，所述通信装置包括
    处理单元，用于确定指示数量Wt的信息，其中，Wt为大于等于1的正整数；
    其中，所述指示数量Wt的信息用于指示所述通信装置需要收到的Wt个下行传输单元集合的接收响应；
    发送单元，用于在下行传输单元集合包括的一个或多个下行传输单元上，向用户设备UE发送所述指示数量Wt的信息。
  94. 根据权利要求93所述的通信装置，其特征在于，
    所述需要收到的Wt个下行传输单元集合的接收响应包括：
    当前下行传输单元所在的下行传输单元集合的接收响应，和所述通信装置在历史上未成功收到的Wt-1个下行传输单元集合的接收响应。
  95. 根据权利要求94所述的通信装置，其特征在于，
    所述通信装置在历史上未成功收到的Wt-1下行传输单元集合的接收响应不包括：
    所述通信装置未成功收到，且所述通信装置已经在所述下行传输单元集合之前的一个或者多个下行传输单元上指示过的一个或多个下行传输单元集合的接收响应。
  96. 根据权利要求93-95任一项所述的通信装置，其特征在于，所述发送单元还用于，在所述下行传输单元集合对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应；
    其中，所述一个下行传输单元集合对应一个上行传输单元。
  97. 根据93-96任意项所述的通信装置，其特征在于，所述通信装置在连续的多个上行传输单元中的任意一个上行传输单元上，未成功收到一个或者多个下行传输单元集合的接收响应，
    则所述通信装置，在所述连续的多个上行传输单元中的每个上行传输单元上，需要收 到的一个或者多个下行传输单元集合的接收响应，均为未成功收到的一个或者多个下行传输单元集合的接收响应。
  98. 根据权利要求93-97任一项所述的通信装置，其特征在于，
    所述发送单元还用于，在下行传输单元集合包括一个或多个下行传输单元上，还向所述UE发送所述下行传输单元集合的索引；
    其中，一个索引与一个下行传输单元集合对应。
  99. 根据权利要求98所述的通信装置，其特征在于，所述接收单元具体用于，在所述索引对应的上行传输单元上接收所述UE发送的Wt个下行传输单元集合的接收响应。
  100. 根据权利要求93-99任一项所述的通信装置，其特征在于，所述指示数量Wt的信息，通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI指示。
  101. 根据权利要求100所述的通信装置，其特征在于，所述DCI包括下行分配指示DAI，所述DAI用于指示所述通信装置需要受到Wu个下行传输单元的接收响应。
  102. 根据权利要求93-99任一项所述的方法所述的通信装置，其特征在于，所述发送单元还用于，在第一下行传输单元集合包括的一个或多个下行传输单元上，发送指示数量Wu的信息，其中，Wu为正整数或者0；
    所述指示数量Wu的信息，用于指示所述网络设备需要收到Wu个下行传输单元的接收响应。
  103. 根据权利要求102所述的方法所述的通信装置，其特征在于，所述指示数量Wu的信息通过承载在所述一个或者多个下行传输单元上的下行控制信息DCI中的DAI指示.
  104. 根据权利要求101或103所述的通信装置，其特征在于，所述DAI中的总total DAI用于指示所述通信装置需要收到的Wu个下行传输单元的接收响应。
  105. 根据权利要求58-104任一项所述的通信装置，其特征在于，下行传输单元集合的接收响应包括所述下行传输单元集合包括的一个或多个下行传输单元的接收响应。
  106. 根据权利要105所述的通信装置，其特征在于，下行传输单元包括一个或多个载波，则所述下行传输单元集合的接收响应包括所述下行传输单元集合包括的一个或多个下行传输单元包括的一个或多个载波的接收响应。
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