CN110061816A - A kind of mobile communication system, the network equipment, terminal device and data dispatching method - Google Patents

A kind of mobile communication system, the network equipment, terminal device and data dispatching method Download PDF

Info

Publication number
CN110061816A
CN110061816A CN201811014512.8A CN201811014512A CN110061816A CN 110061816 A CN110061816 A CN 110061816A CN 201811014512 A CN201811014512 A CN 201811014512A CN 110061816 A CN110061816 A CN 110061816A
Authority
CN
China
Prior art keywords
pdcch
harq
protected
dai
redundant
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201811014512.8A
Other languages
Chinese (zh)
Other versions
CN110061816B (en
Inventor
闫志宇
杜滢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Information and Communications Technology CAICT
Original Assignee
China Academy of Information and Communications Technology CAICT
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 China Academy of Information and Communications Technology CAICT filed Critical China Academy of Information and Communications Technology CAICT
Priority to CN201811014512.8A priority Critical patent/CN110061816B/en
Priority to PCT/CN2019/071428 priority patent/WO2020042528A1/en
Publication of CN110061816A publication Critical patent/CN110061816A/en
Application granted granted Critical
Publication of CN110061816B publication Critical patent/CN110061816B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04L1/18—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
    • 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

Landscapes

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

Abstract

This application discloses a kind of mobile communication system, the network equipment, terminal device and data dispatching method, data dispatching method is the following steps are included: search PDCCH original set and at least one redundancy PDCCH；PDCCH original set includes protected PDCCH；Protected PDCCH and redundancy PDCCH is used to dispatch identical target PDSCH and DAI field is identical；The amount of bits of HARQ-ACK code book is determined according to whole DAI fields that PDCCH restores collection；Sequence of the corresponding HARQ-ACK information of the target PDSCH in HARQ-ACK code book is determined according to the DAI field of at least one redundancy PDCCH；Send the HARQ-ACK code book.The application also includes a kind of using the mobile communication network device of the method, terminal device and system.The dynamic HARQ-ACK code book determined using the sortord of DAI in down control channel in the present invention, meets the delay requirement and efficiency requirements of uplink control information transmission in NR system.

Description

Mobile communication system, network equipment, terminal equipment and data scheduling method
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a data scheduling method, and a mobile communication device and a system applying the data scheduling method.
Background
In the NR technique, a network device schedules a Physical Downlink Shared Channel (PDSCH) for transmitting downlink information and a Physical Uplink Shared Channel (PUSCH) for a terminal device (UE) to transmit uplink information through a Physical Downlink Control Channel (PDCCH). The terminal equipment sends Acknowledgement (ACK) or non-acknowledgement (NACK) information of downlink traffic data reception to the network equipment so that the network equipment determines whether to reschedule the downlink traffic data or to schedule channel downlink traffic data to the terminal equipment. The ACK and NACK information are collectively referred to as hybrid automatic repeat request acknowledgement information (HARQ-ACK).
When the network equipment only sends PDCCH to the terminal equipment in a part of downlink channels in the HARQ feedback window, the terminal equipment only feeds back the corresponding HARQ-ACK information aiming at the downlink channels receiving the PDCCH by using the determination mode of the HARQ-ACK dynamic codebook. In an actual system, a terminal device may lose some Downlink Control Information (DCI), and a Downlink Assignment Index (DAI) field in a PDCCH can be used to determine the lost PDCCH, and feed back NACK information at a position corresponding to the lost PDCCH. 3GPP TS38.213 vf20 section 9.1 presents a technical solution for determining the number of HARQ-ACK codebook bits and contents according to DAI.
In order to meet the reliability requirement of URLLC service, the PDCCH is repeatedly sent for multiple times corresponding to the same PDSCH, so that the reliability of a control channel is improved. The multiple PDCCHs have different transmission time resources, different transmission frequency resources, or different transmission time and frequency resources. Information redundancy is caused when the PDCCH is repeatedly transmitted, and the HARQ-ACK response efficiency between the terminal equipment and the network equipment is reduced.
Disclosure of Invention
The application provides a mobile communication system, network equipment, terminal equipment and a data scheduling method, and aims to solve the problem of how to perform high-efficiency hybrid automatic repeat request response between the network equipment and the terminal equipment when a plurality of PDCCHs correspond to the same PDSCH.
The application provides a data scheduling method of a mobile communication system, which is used for a mobile terminal of the mobile communication system and comprises the following steps:
searching a PDCCH original set and at least one redundant PDCCH; the PDCCH original set comprises a protected PDCCH; the protected PDCCH and the redundant PDCCH are used for scheduling the same target PDSCH, and DAI fields are the same;
determining the bit number of an HARQ-ACK codebook according to all DAI fields of a PDCCH recovery set; the PDCCH recovery set comprises a part searched in the PDCCH original set and a recovery PDCCH, and the recovery PDCCH is positioned at the position of a protected PDCCH and comprises a DAI field of any one searched redundant PDCCH;
determining the sequence of HARQ-ACK information corresponding to the target PDSCH in an HARQ-ACK codebook according to the searched DAI field of any one redundant PDCCH;
and transmitting the HARQ-ACK codebook.
The application also provides a data scheduling method of the mobile communication system, which is used for the network equipment of the mobile communication system and comprises the following steps:
transmitting a PDCCH original set and at least one redundant PDCCH; the PDCCH original set comprises a protected PDCCH; the protected PDCCH and the redundant PDCCH are used for scheduling the same target PDSCH, and DAI fields are the same;
the value of the DAI field of the protected PDCCH and the redundant PDCCH is determined according to the position of the protected PDCCH in the original PDCCH set;
the relative position relationship between the transmission resources occupied by the protected PDCCH and the redundant PDCCH is preset; the protected PDCCH and the redundant PDCCH satisfy at least one of the following conditions: the index of the service cell is minimum, the monitoring time is earliest, the index of the CORESET is minimum, the index of the bandwidth part is minimum, the index of the search space is minimum, and the index of the CCE is minimum.
Preferably, the DAI field contains a count DAI; and the value of the counting DAI of each PDCCH in the PDCCH original set represents the sequence number of each PDCCH in the PDCCH original set.
Preferably, the DAI field contains a total amount DAI; and the value of the total DAI of each PDCCH in the PDCCH original set represents the total number of PDCCHs scheduled in the HARQ window by the PDCCH original set at the monitoring time of each PDCCH.
Preferably, the protected PDCCH and the redundant PDCCH satisfy: and the monitoring time corresponding to the protected PDCCH is earliest, and when the monitoring times corresponding to the protected PDCCH and the redundant PDCCH are the same, the index value of the service cell corresponding to the protected PDCCH is minimum.
Preferably, in any embodiment of the present application, the PDCCH original set further includes an unprotected PDCCH.
The application also provides a mobile communication system terminal device, which is used for the method of the embodiment of the application, and the terminal device comprises a terminal processing module; the terminal processing module is used for: searching the PDCCH original set and at least one redundant PDCCH; recovering the protected PDCCH according to the searched DAI field of any one redundant PDCCH, and determining the sequence of HARQ-ACK information corresponding to the target PDSCH in an HARQ-ACK codebook; generating the PDCCH recovery set, and determining the bit number of an HARQ-ACK codebook; and transmitting the HARQ-ACK codebook.
The application also provides a mobile communication system network device, which is used for the method of the embodiment of the application, and the network device comprises a network processing module; and the network processing module is used for generating and sending the PDCCH original set and the redundant PDCCH and receiving the HARQ-ACK codebook.
The application also provides a mobile communication system, which comprises the terminal device and the network device in any embodiment of the application.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the transmission method of the uplink control information solves the problems of how to determine the size of the HARQ-ACK codebook and determine the sequencing of the PDSCH in the HARQ-ACK codebook when the PDCCH is sent to correspond to the same PDSCH for a plurality of times under the condition that the transmission performance of the protected PDCCH is improved through the redundant PDCCH. By adopting the scheme of the invention, the HARQ-ACK feedback efficiency can be improved, and the performance requirement of the PDCCH can be met.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is an example of count DAI and total DAI values in DCI in a prior art carrier aggregation scenario;
fig. 2 is a diagram illustrating HARQ-ACK information;
FIG. 3 is a flow chart of an embodiment of the method of the present invention for a network device;
FIG. 4 is a flowchart of an embodiment of the method of the present invention applied to a terminal device;
FIG. 5 is a schematic diagram of a PDCCH arrangement when 2 PDCCHs correspond to 1 PDSCH;
FIG. 6 is a diagram illustrating HARQ-ACK information sent by a mobile terminal, wherein
Fig. 6(a) is a case where both a protected PDCCH and a redundant PDCCH are lost;
fig. 6(b) is a situation where a protected PDCCH is lost;
fig. 6(c) is a case where a redundant PDCCH is lost;
fig. 6(d) is a case where both a protected PDCCH and a redundant PDCCH are received;
FIG. 7 is a schematic diagram of a system embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
When the same PDSCH transmission is scheduled through the PDCCH for K times, the transmission time resources, the transmission frequency resources or both the transmission time and the frequency resources of the PDCCH for K times are different. There is no prior art scheme for how to determine the DAI field in the K PDCCHs and how to determine the position of the HARQ-ACK information of the PDSCH corresponding to the K PDCCHs in the HARQ-ACK codebook information.
In the scheme of the invention, the value of DAI in the K-time PDCCH is determined according to the position of the 1 st-time PDCCH (namely the protected PDCCH); the UE determines the position of a protected PDCCH according to the received PDCCH which is repeatedly transmitted for at least 1 time (namely, the redundant PDCCH), determines the codebook size of the fed-back HARQ-ACK according to the DAI field in the received PDCCH, and determines the sequencing of the feedback information of the HARQ-ACK of the PDSCH indicated by the redundant PDCCH in the HARQ-ACK codebook. Here, the location of the protected PDCCH refers to a location of a transmission resource of the protected PDCCH, and specifically, is a location identified by at least 1 of a serving cell index, a monitoring time, a CORESET index, a bandwidth part index, a search space index, and a CCE index (preferably, a first CCE index in the protected PDCCH).
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is an example of the values of the count DAI and the total DAI in DCI in a carrier aggregation scenario in the prior art. If every 1 PDCCH corresponds to 1 PDSCH, the formed PDCCH set is called as a PDCCH original set; wherein each PDCCH contains a DAI field.
The DAI field contains a "count DAI"; and the value of the counting DAI of each PDCCH in the PDCCH original set represents the sequence number of each PDCCH in the PDCCH original set.
The DAI field also contains a "total DAI"; and the value of the total DAI of each PDCCH in the PDCCH original set represents the total number of PDCCHs scheduled in the HARQ window by the PDCCH original set at the monitoring time of each PDCCH.
And the PDCCH original set is sent in an HARQ feedback window.
It should be noted that: the counting DAI is used for telling the terminal equipment the position occupied by the current PDCCH in the PDCCH original set; the total DAI is used for telling the terminal equipment the PDCCH number originally and intensively scheduled at the current moment. This may help the terminal device to identify whether certain PDCCHs are lost, and may also help the terminal device to determine how many bits of HARQ-ACK information need to be fed back.
In one embodiment of the mobile communication system, the DAI field in format1 (denoted as DCI format1_ 0) of the PDCCH includes a 2-bit count DAI. Format 2 (denoted as DCI format1_ 1) of the PDCCH, and the DAI field includes a 2-bit count DAI when the terminal device is configured with 1 cell service; the DAI field includes a count DAI of 2 bits and a total DAI of 2 bits in the case where the terminal device is configured with more than 1 cell service. Specifically, the value of the counting DAI in the DCI format1_ 0 and the DCI format1_1 is a serial number obtained by counting according to the position of the current PDCCH in the space { serving cell, PDCCH monitoring time } (in this document, "PDCCH monitoring time" or "monitoring time" for short) and then sorting according to the order of the monitoring time indexes from low to high after indexing according to the serving cell index. And updating the total DAI value in the PDCCH format1_1 according to the granularity of each monitoring moment, wherein the value is the number of PDCCHs transmitted by the current monitoring moment. In fig. 1, for example, in carrier aggregation of 3 cells (cells), the count DAI and the total DAI each include 2 bits, for example, "4" in "4/5" indicates the count DAI, and "5" indicates the total DAI.
It should be noted that the PDCCH original set consists of an unprotected PDCCH and a protected PDCCH, that is, the PDCCH in the PDCCH original set is divided into two types, namely an unprotected PDCCH and a protected PDCCH; under special conditions, the number of unprotected PDCCHs is 0; the protected PDCCH means that at least one redundant PDCCH corresponds to the protected PDCCH, but the redundant PDCCH is not included in the PDCCH original set.
Fig. 2 is a diagram illustrating HARQ-ACK information. In an embodiment of the present application, the value of the count DAI in DCI format1_ 0 and DCI format1_1 is related to { serving cell, monitoring time } where the DCI is located, and each 1 DCI corresponds to 1-time PDSCH scheduling. According to the value of the counting DAI in the DCI format1_ 0/DCI format1_1, the terminal equipment can determine that the HARQ-ACK of the corresponding PDSCH is OACKBit HARQ-ACK informationIn the specific location of (a). Taking the PDCCH original set in fig. 1 as an example, if the terminal device does not receive the high-level configuration signaling "PUCCH HARQ-ACK spatial bundling" and receives the high-level configuration signaling "DCI schedules the maximum number of codewords", then OACK20, the HARQ-ACK information fed back by the terminal device in Slot n is
If the terminal equipment receives the high-level configuration signaling PUCCH HARQ-ACK space bundling and/or does not receive the high-level configuration signaling DCI scheduling maximum code word number, then OACK10, each bit of HARQ-ACK information fed back by the terminal device in Slot n corresponds to a demodulation result of the PDSCH corresponding to one PDCCH.
Fig. 3 is a flowchart of an embodiment of the method of the present invention applied to a network device. The embodiment of the method used for the network equipment specifically comprises the following steps:
step 100, a network device sends a PDCCH original set and at least one redundant PDCCH; the PDCCH original set comprises a protected PDCCH; the protected PDCCH and the redundant PDCCH are used to schedule the same target PDSCH and the DAI fields are the same.
Further, the PDCCH original set further includes an unprotected PDCCH. The unprotected PDCCH has no corresponding redundant PDCCH for protection. Generally, the protected PDCCH and the unprotected PDCCH are used to schedule different PDSCHs, which also differ in DAI field.
In step 100, the value of the DAI field of any one PDCCH in the original set of PDCCHs is determined according to the position of the any one PDCCH in the original set of PDCCHs;
in step 100, values of DAI fields of the protected PDCCH and the redundant PDCCH are determined according to positions of the protected PDCCH in the PDCCH original set;
the location of each PDCCH (which may be a redundant PDCCH or a PDCCH in the PDCCH original set) refers to a location of a transmission resource occupied by the PDCCH, and specifically, refers to a location identified by at least one of a serving cell index, a monitoring time, a CORESET index, a bandwidth part index, a search space index, and a CCE index. For example, in a transmission resource space formed by { serving cell, monitoring time }, the ordering manner of one PDCCH may be, for example, that the monitoring time corresponding to the PDCCH ordered first is earlier; and when the monitoring time corresponding to the two PDCCHs is the same, the index value of the service cell corresponding to the PDCCH in the first sequence is small.
As information shared by the network device and the terminal device, a relative position relationship between transmission resources occupied by the protected PDCCH and the corresponding redundant PDCCH is preset (that is, the position of the protected PDCCH can be known according to the position of the redundant PDCCH, and vice versa), and the protected PDCCH and the redundant PDCCH satisfy at least one of the following conditions: the index of the service cell is minimum, the monitoring time is earliest, the index of the CORESET is minimum, the index of the bandwidth part is minimum, the index of the search space is minimum, and the index of the CCE is minimum.
Step 101, the network device receives the HARQ-ACK codebook from the terminal device.
It should be noted that, in step 101, the premise that the network device receives the HARQ-ACK codebook from the terminal device is that the terminal device completes PDCCH processing and sends out the HARQ-ACK codebook.
To achieve this, the terminal device first performs:
searching the PDCCH original set and at least one redundant PDCCH;
determining the bit number of an HARQ-ACK codebook according to all DAI fields of a PDCCH recovery set; the PDCCH recovery set comprises a part searched in the PDCCH original set and also comprises a recovered PDCCH; the recovery PDCCH is located at the position of the protected PDCCH and comprises a DAI field of any one searched redundant PDCCH; determining the sequence of HARQ-ACK information corresponding to the target PDSCH in an HARQ-ACK codebook according to the DAI field of any one redundant PDCCH;
and transmitting the HARQ-ACK codebook.
Fig. 4 is a flowchart of an embodiment of the method of the present invention applied to a terminal device. The embodiment of the invention method special for the mobile communication system terminal equipment specifically comprises the following steps:
step 200, terminal equipment searches a PDCCH original set and at least one redundant PDCCH; the PDCCH original set comprises a protected PDCCH; the protected PDCCH and the redundant PDCCH are used for scheduling the same target PDSCH, and DAI fields are the same;
further, the PDCCH original set further includes an unprotected PDCCH. And the unprotected PDCCH has no corresponding redundant PDCCH to realize protection. Generally, the protected PDCCH and the unprotected PDCCH are used to schedule different PDSCHs, and the DAI fields of the protected PDCCH and the unprotected PDCCH are different;
in step 200, the values of the DAI fields of the protected PDCCH and the redundant PDCCH are determined by the network device according to the position of the protected PDCCH in the PDCCH original set;
as information shared by the network device and the terminal device, a relative position relationship between transmission resources occupied by the protected PDCCH and the redundant PDCCH is preset (the terminal device can know the position of the protected PDCCH according to the position of the redundant PDCCH, and vice versa), and the protected PDCCH and the redundant PDCCH satisfy at least one of the following conditions: the index of the service cell is minimum, the monitoring time is earliest, the index of the CORESET is minimum, the index of the bandwidth part is minimum, the index of the search space is minimum, and the index of the CCE is minimum.
Step 201, in the terminal device, determining the bit number of the HARQ-ACK codebook according to all DAI fields of the PDCCH recovery set; the PDCCH recovery set comprises the part searched in the PDCCH original set and also comprises a recovered PDCCH. The recovery PDCCH is located at the position of the protected PDCCH, and the recovery PDCCH comprises a DAI field of any one searched redundant PDCCH;
for example,
a PDCCH original set sent by the network device includes 1 protected PDCCH and also includes N (N is a natural number, for example, 8) unprotected PDCCHs; the network equipment also sends 2 redundant PDCCHs for the protected PDCCH; the DAI fields of the protected PDCCH and the corresponding 2 redundant PDCCHs are the same. The terminal equipment searches the PDCCH original set and 2 redundant PDCCHs; the protected PDCCH is lost, and the terminal device searches M (M is a natural number, for example, 7) unprotected PDCCHs and 1 redundant PDCCH. The terminal equipment can determine a PDCCH recovery set, wherein the PDCCH recovery set comprises M unprotected PDCCHs; since transmission resources occupied by the protected PDCCH and the redundant PDCCH are preset, the terminal device can also determine that the PDCCH recovery set contains 1 protected PDCCH; and the position of the transmission resource occupied by the protected PDCCH can be determined according to the position of the transmission resource occupied by the redundant PDCCH. The terminal equipment determines the DAI field of the protected PDCCH according to the searched DAI field of the 1 redundant PDCCH, namely the DAI field is the same as the DAI field; the terminal equipment determines a PDSCH scheduled by the protected PDCCH, namely the same target PDSCH, according to the PDSCH indicated by the searched 1 redundant PDCCH, namely the target PDSCH;
and the terminal equipment determines the bit number and the content of the HARQ-ACK codebook according to all DAI fields of the PDCCH recovery set, namely the DAI field of the protected PDCCH and the searched DAI fields of the M unprotected PDCCHs. For example, the technical scheme of determining the number and content of HARQ-ACK codebook bits according to all DAI fields of one PDCCH set as given in section 9.1 of 3GPP TS38.213 vf20 is adopted.
Step 202, in the terminal device, determining the ordering of the HARQ-ACK information corresponding to the target PDSCH in the HARQ-ACK codebook according to the DAI field of the any one of the redundant PDCCHs;
for example,
the PDCCH original set sent by the network device includes 9 PDCCHs, and the DAI fields are respectively recorded as: 1/3, 2/3, 3/3, 4/5, 5/5, 6/7, 7/7, 8/9, 9/9, the above DAI field being determined according to the position of the respective PDCCH in the original set. Wherein, the DAI field of the 4 th PDCCH is denoted as 4/5 and is a protected PDCCH; the others are unprotected PDCCHs;
the network equipment also sends 2 redundant PDCCHs for the protected PDCCH, and the DAI fields are all recorded as 4/5; and the same target PDSCH is indicated in both the protected PDCCH and the redundant PDCCH.
The terminal device searches for the PDCCH original set and the redundant PDCCH, the protected PDCCH is lost, the second unprotected PDCCH is lost, the terminal device searches for 7 unprotected PDCCHs, and the DAI fields are 1/3, 3/3, 5/5, 6/7, 7/7, 8/9, and 9/9, respectively. The terminal device also searches for 1 redundant PDCCH, DAI field is 4/5, and determines the location of the scheduled target PDSCH. The terminal equipment can determine a PDCCH recovery set, which comprises 8 PDCCHs (1 st PDCCH, 3 th PDCCH and 9 th PDCCH in the original set), wherein a protected PDCCH exists at a transmission resource of the 4 th PDCCH, and a DAI field of the protected PDCCH is 4/5. If each HARQ-ACK message occupies 1 bit, the HARQ-ACK information corresponding to the target PDSCH is sequenced into a 4 th bit in an HARQ-ACK codebook; and if each HARQ-ACK message occupies 2 bits, sequencing the HARQ-ACK information corresponding to the target PDSCH into 7-8 bits in an HARQ-ACK codebook.
And 203, the terminal equipment sends the HARQ-ACK codebook.
Fig. 5 is a schematic diagram of PDCCH arrangement when 2 PDCCHs correspond to 1 PDSCH. In the figure, 1 protected PDCCH and 1 redundant PDCCH are given for an example when scheduling the same target PDSCH.
As an embodiment of the present invention, the protected PDCCH and the redundant PDCCH satisfy: and the monitoring time corresponding to the protected PDCCH is earliest, and the index value of the serving cell corresponding to the protected PDCCH is smallest.
As a preferred embodiment of the present application, the protected PDCCH and the redundant PDCCH satisfy: the monitoring time corresponding to the protected PDCCH is earliest; and when the monitoring time corresponding to the protected PDCCH and the redundant PDCCH is the same, the index value of the service cell corresponding to the protected PDCCH is minimum.
As an example in FIG. 5, the PDCCH set sent by the network device (gNB) includes 10 PDCCHs { PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-4, PDCCH-5, PDCCH-6, PDCCH-7, PDCCH-8, PDCCH-9, PDCCH-10}, which include the PDCCH original set and the redundant PDCCHs. { PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-4, PDCCH-5, PDCCH-7, PDCCH-8, PDCCH-9, PDCCH-10} is a PDCCH original set; PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-5, PDCCH-7, PDCCH-8, PDCCH-9 and PDCCH-10 are unprotected PDCCHs; PDCCH-4 is a protected PDCCH; PDCCH-6 is a redundant PDCCH; PDCCH-4 and PDCCH-6 are used to schedule the same target PDSCH. The values of the count DAI and the total DAI in PDCCH-6 are respectively the same as those of the count DAI and the total DAI fields in PDCCH-4. Namely, determining a count DAI to be 4 according to the position of PDCCH-4 in a PDCCH original set { PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-4, PDCCH-5, PDCCH-7, PDCCH-8, PDCCH-9 and PDCCH-10 }; determining the PDCCH detection time at which a protected PDCCH is cut off, namely the monitoring time is B, the number of PDCCHs scheduled in an HARQ window by the PDCCH original set, and determining the total amount DAI of the PDCCHs to be 5 according to the resource { serving cell, monitoring time } < 1, B } occupied by sending PDCCH-4, wherein the monitoring time is B, and the scheduled PDCCHs comprise PDCCH 1-PDCCH 5; and then determining the values of the counting DAI and the total DAI in the PDCCH-6: the count DAI-4 and the total DAI-5.
It should be noted that, in the embodiments of fig. 1 to 5, both the count DAI and the total DAI are expressed by decimal numbers. In the communication system, the maximum integer value range representable by bits of the count DAI and the total DAI is used as the cycle number, for example, when both the count DAI and the total DAI are represented by 2 bits, the maximum integer value range representable is 4 (for example, from 0 to 3), and then the count DAI and the total DAI are represented in a cycle by modulo 4 of the cycle number.
For example, the values of the count DAI or the total DAI are (both expressed in decimal):
actual value 12345678910
Field value 0123012301
For example, when the field value of the count DAI or the total DAI is 3, it is necessary to distinguish whether the actual value represented by it is 4 or 8.
As a further optimized embodiment of the present application, before the step of determining the ordering of the HARQ-ACK information corresponding to the target PDSCH in the HARQ-ACK codebook according to the DAI field and/or the step of determining the number of bits of the HARQ-ACK codebook according to all DAI fields of the PDCCH recovery set, the terminal device performs modulo cyclic correction on the counted DAI and the total DAI of the PDCCH.
For example, the method of performing modulo-cyclic correction on the DAI field of the protected (recovered) PDCCH according to the number of PDCCHs that have been searched before the location of the protected PDCCH is as follows:
actual value field value + M × [ X/M ] +1 (1)
Where X denotes the number of PDCCHs before the location of the protected PDCCH, [ ] denotes an integer, and M is the number of cycles, e.g., 4.
As another example, a modulo-cyclic correction is performed on the DAI field of the unprotected PDCCH, applying equation (1), where X represents the number of PDCCHs before the location of the unprotected PDCCH. Fig. 6 is a schematic diagram of the mobile terminal sending HARQ-ACK information, and according to the PDCCH set of fig. 5, the terminal equipment (UE) side receives the PDCCHs at monitoring time A, B, C, D in sequence. For PDCCH-4 and PDCCH-6, there are four cases for the reception result of the terminal device. Wherein,
fig. 6(a) shows a case where both the protected PDCCH and the redundant PDCCH are lost. Neither PDCCH-4 nor PDCCH-6 is received by the UE, in which case the UE determines O from the respective counts DAI and totals DAI in the received PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-5, PDCCH-7, PDCCH-8, PDCCH-9, PDCCH-10ACKThe HARQ-ACK information fed back by the terminal device in Slot n is 18Wherein,
fig. 6(b) shows a case where the redundant PDCCH is lost. The UE receives only PDCCH-4 and not PDCCH-6, and in this case, the UE determines O according to the respective count DAI and total amount DAI in the received PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-4, PDCCH-5, PDCCH-7, PDCCH-8, PDCCH-9 and PDCCH-10ACK18, HARQ-ACK information fed back by the terminal device in Slot n is:whereinHARQ-ACK acknowledgement information for the PDSCH indicated for PDCCH-4.
Fig. 6(c) is a situation where a protected PDCCH is lost; and the UE only receives the PDCCH-6 and does not receive the PDCCH-4, and in this case, after receiving the PDCCH-6, the UE determines according to a preset rule of resources occupied by the protected PDCCH and the redundant PDCCH: PDCCH-4 and PDCCH-6 indicate the same PDSCH, and PDCCH-4 is determined to be a protected PDCCH. The UE counts DAI and total DAI according to the received PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-5, PDCCH-6, PDCCH-7, PDCCH-8, PDCCH-9 and PDCCH-10 respectively, and also according to the { serving cell, monitoring time } in which the PDCCH-4 is positioned. Determination of OACK18, HARQ-ACK information fed back by the terminal device in Slot n is:whereinHARQ-ACK acknowledgement information for the PDSCH indicated for PDCCH-6.
Fig. 6(d) is a case where both a protected PDCCH and a redundant PDCCH are received; and the PDCCH-4 and the PDCCH-6 are both received by the UE, and in this case, after the UE receives the PDCCH-4 and the PDCCH-6, the determination is carried out according to the preset rule of the resources occupied by the protected PDCCH and the redundant PDCCH: PDCCH-4 and PDCCH-6 indicate the same PDSCH, and PDCCH-4 is determined to be a protected PDCCH. The UE determines O according to the respective count DAI and the total DAI in the received PDCCH-1, PDCCH-2, PDCCH-3, PDCCH-4/PDCCH-6, PDCCH-5, PDCCH-7, PDCCH-8, PDCCH-9 and PDCCH-10 and the { serving cell, monitoring time } in which the PDCCH-4 is positionedACK18, HARQ-ACK information fed back by the terminal device in Slot n is:
whereinHARQ-ACK acknowledgement information for a PDSCH indicated for PDCCH-4 or PDCCH-6.
It should be noted that the terminal device may receive PDCCH-4 and PDCCH-6 separately, or may receive PDCCH-4 and PDCCH-6 jointly in a soft combining manner. According to the scheme of the invention, the terminal equipment determines the { serving cell, monitoring moment } of the protected PDCCH according to the resources occupied by the preset protected PDCCH and the redundant PDCCH. And then determining the sequence of the HARQ-ACK response information of the PDSCH corresponding to the protected PDCCH in a fed-back HARQ-ACK codebook according to the { serving cell, monitoring time } of the protected PDCC, so that the terminal equipment can be ensured to correctly determine the size of the HARQ-ACK codebook and determine the sequence of the HARQ-ACK response information of the PDSCH scheduled in an HARQ window in the HARQ-ACK codebook, and the reliability of the URLLC and other downlink data transmission is ensured.
FIG. 7 is a schematic diagram of a system embodiment of the present invention.
The application also provides a mobile communication system terminal device, which is used for the method of the embodiment of the application, and the terminal device comprises a terminal processing module 20; the terminal processing module is used for: searching the PDCCH original set and at least one redundant PDCCH; recovering the protected PDCCH according to the DAI field of any one redundant PDCCH, and determining the sequence of HARQ-ACK information corresponding to the target PDSCH in an HARQ-ACK codebook; generating the PDCCH recovery set, and determining the bit number of an HARQ-ACK codebook; and transmitting the HARQ-ACK codebook.
The application also provides a network device of a mobile communication system, which is used for the method in the embodiment of the application, and the network device comprises a network processing module 10; and the network processing module is used for generating and sending the PDCCH original set and the redundant PDCCH and receiving the HARQ-ACK codebook.
The application also provides a mobile communication system, which comprises the terminal device and the network device in any embodiment of the application.
It should be noted that the number of bits of the HARQ-ACK codebook according to each embodiment of the present invention is used to reflect the amount of HARQ-ACK information, and the amount of information may also be represented by "number of bytes of the HARQ-ACK codebook" or other units indicating how much the amount of information is, and the implementation process of the embodiment is similar to that described in each embodiment.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (11)

1. A data scheduling method in a mobile communication system, comprising the steps of:
searching a PDCCH original set and at least one redundant PDCCH; the PDCCH original set comprises a protected PDCCH; the protected PDCCH and the redundant PDCCH are used for scheduling the same target PDSCH, and DAI fields are the same;
determining the bit number of an HARQ-ACK codebook according to all DAI fields of a PDCCH recovery set; the PDCCH recovery set comprises a part searched in the PDCCH original set and a recovery PDCCH, and the recovery PDCCH is positioned at the position of a protected PDCCH and comprises a DAI field of any one searched redundant PDCCH;
determining the sequence of HARQ-ACK information corresponding to the target PDSCH in an HARQ-ACK codebook according to the searched DAI field of any one redundant PDCCH;
and transmitting the HARQ-ACK codebook.
2. A data scheduling method in a mobile communication system, comprising the steps of:
transmitting a PDCCH original set and at least one redundant PDCCH; the PDCCH original set comprises a protected PDCCH; the protected PDCCH and the redundant PDCCH are used for scheduling the same target PDSCH, and DAI fields are the same;
the value of the DAI field of the protected PDCCH and the redundant PDCCH is determined according to the position of the protected PDCCH in the original PDCCH set;
the relative position relationship between the transmission resources occupied by the protected PDCCH and the redundant PDCCH is preset; the protected PDCCH and the redundant PDCCH satisfy at least one of the following conditions: the index of the service cell is minimum, the monitoring time is earliest, the index of the CORESET is minimum, the index of the bandwidth part is minimum, the index of the search space is minimum, and the index of the CCE is minimum.
3. The method for scheduling data in a mobile communication system according to claim 2, further comprising the steps of:
searching the PDCCH original set and at least one redundant PDCCH;
determining the bit number of an HARQ-ACK codebook according to all DAI fields of a PDCCH recovery set; the PDCCH recovery set comprises a part searched in the PDCCH original set and a recovery PDCCH, and the recovery PDCCH is positioned at the position of the protected PDCCH and comprises a DAI field of any one searched redundant PDCCH;
determining the sequence of HARQ-ACK information corresponding to the target PDSCH in an HARQ-ACK codebook according to the searched DAI field of any one redundant PDCCH;
and transmitting the HARQ-ACK codebook.
4. The method according to any of claims 1 to 3, wherein the DAI field contains a count DAI;
and the value of the counting DAI of each PDCCH in the PDCCH original set represents the sequence number of each PDCCH in the PDCCH original set.
5. The method according to any of claims 1 to 3, wherein the DAI field contains a total amount of DAI;
and the value of the total DAI of each PDCCH in the PDCCH original set represents the total number of PDCCHs scheduled in the HARQ window by the PDCCH original set at the monitoring time of each PDCCH.
6. The method of any one of claims 1 to 3, wherein the protected PDCCH satisfies, as compared with the redundant PDCCH:
the monitoring time corresponding to the protected PDCCH is earliest, and
and when the monitoring time corresponding to the protected PDCCH and the monitoring time corresponding to the redundant PDCCH are the same, the index value of the service cell corresponding to the protected PDCCH is minimum.
7. The method of any one of claims 1 to 3, wherein the original set of PDCCHs further comprises an unprotected PDCCH.
8. The method as claimed in any one of claims 1 and 3 to 7, wherein before the step of determining the ordering of the HARQ-ACK information corresponding to the target PDSCH in the HARQ-ACK codebook according to the DAI field and/or the step of determining the number of bits of the HARQ-ACK codebook according to all DAI fields of the PDCCH recovery set, the method further comprises the following steps: and performing modular cycle correction on the DAI field of the redundant PDCCH according to the number of PDCCHs which are searched before the position of the protected PDCCH.
9. A mobile communication system terminal device for use in the method of claim 1 or 3, comprising a terminal processing module;
the terminal processing module is used for
Searching the PDCCH original set and at least one redundant PDCCH;
recovering the protected PDCCH according to the searched DAI field of any one redundant PDCCH, and determining the sequence of HARQ-ACK information corresponding to the target PDSCH in an HARQ-ACK codebook;
generating the PDCCH recovery set, and determining the bit number of an HARQ-ACK codebook;
and transmitting the HARQ-ACK codebook.
10. A mobile communication system network device for use in the method of claim 2 or 3, comprising a network processing module;
and the network processing module is used for generating and sending the PDCCH original set and the redundant PDCCH and receiving the HARQ-ACK codebook.
11. A mobile communication system comprising the terminal device of claim 9 and the network device of claim 10.
CN201811014512.8A 2018-08-31 2018-08-31 Mobile communication system, network equipment, terminal equipment and data scheduling method Active CN110061816B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201811014512.8A CN110061816B (en) 2018-08-31 2018-08-31 Mobile communication system, network equipment, terminal equipment and data scheduling method
PCT/CN2019/071428 WO2020042528A1 (en) 2018-08-31 2019-01-11 Mobile communication system, network device, terminal device, and data scheduling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811014512.8A CN110061816B (en) 2018-08-31 2018-08-31 Mobile communication system, network equipment, terminal equipment and data scheduling method

Publications (2)

Publication Number Publication Date
CN110061816A true CN110061816A (en) 2019-07-26
CN110061816B CN110061816B (en) 2020-07-14

Family

ID=67315046

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811014512.8A Active CN110061816B (en) 2018-08-31 2018-08-31 Mobile communication system, network equipment, terminal equipment and data scheduling method

Country Status (2)

Country Link
CN (1) CN110061816B (en)
WO (1) WO2020042528A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021030977A1 (en) * 2019-08-16 2021-02-25 华为技术有限公司 Communication method and communication device
WO2021056264A1 (en) * 2019-09-25 2021-04-01 Nokia Shanghai Bell Co., Ltd. Dai scheme for joint ack/nack feedback in multi-trp/panel transmission
WO2021062703A1 (en) * 2019-09-30 2021-04-08 Zte Corporation Systems and methods for determining parameters for uplink and downlink transmissions in wireless communication networks
WO2021204275A1 (en) * 2020-04-10 2021-10-14 华为技术有限公司 Method and device for transmitting feedback information
EP4027725A4 (en) * 2019-09-03 2023-09-20 ZTE Corporation Information enhancement method and apparatus, device, and storage medium

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115276918B (en) * 2019-08-02 2024-04-26 中兴通讯股份有限公司 Information counting method, apparatus and computer storage medium
WO2021189372A1 (en) * 2020-03-26 2021-09-30 Oppo广东移动通信有限公司 Communication method, terminal device, and network device
CN113595697B (en) * 2020-04-30 2022-09-27 维沃移动通信有限公司 DAI counting method, DAI counting control method, terminal and network equipment
WO2022081621A2 (en) * 2020-10-14 2022-04-21 Ofinno, Llc Hybrid automatic repeat request feedback with control channel repetition
WO2022087347A1 (en) * 2020-10-22 2022-04-28 Ofinno, Llc Transmissions in control channel repetition

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101499882A (en) * 2008-11-05 2009-08-05 华为技术有限公司 Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof
CN101631374A (en) * 2009-08-05 2010-01-20 中兴通讯股份有限公司 Indication method and indication device of downlink transmission mode
CN102136895A (en) * 2008-11-05 2011-07-27 华为技术有限公司 Method and device for feeding back and receiving response messages of semi-static scheduling data packets
CN102170338A (en) * 2011-04-29 2011-08-31 电信科学技术研究院 Method and device for transmitting ACKNACK feedback information
CN102469610A (en) * 2010-11-16 2012-05-23 华为技术有限公司 Method and device for feeding back and receiving response message in carrier aggregation
CN106549734A (en) * 2015-09-18 2017-03-29 中兴通讯股份有限公司 A kind of transmission method of information, terminal and base station
US20170127391A1 (en) * 2010-05-03 2017-05-04 Intel Corporation Allocating a control channel for carrier aggregation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107659387B (en) * 2012-03-16 2020-07-28 苹果公司 Computer readable medium for determining HARQ/ACK codebook size
US10848291B2 (en) * 2015-07-01 2020-11-24 Lg Electronics Inc. Method and device for transmitting signal in wireless communication system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101499882A (en) * 2008-11-05 2009-08-05 华为技术有限公司 Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof
CN102136895A (en) * 2008-11-05 2011-07-27 华为技术有限公司 Method and device for feeding back and receiving response messages of semi-static scheduling data packets
CN101631374A (en) * 2009-08-05 2010-01-20 中兴通讯股份有限公司 Indication method and indication device of downlink transmission mode
US20170127391A1 (en) * 2010-05-03 2017-05-04 Intel Corporation Allocating a control channel for carrier aggregation
CN102469610A (en) * 2010-11-16 2012-05-23 华为技术有限公司 Method and device for feeding back and receiving response message in carrier aggregation
CN102170338A (en) * 2011-04-29 2011-08-31 电信科学技术研究院 Method and device for transmitting ACKNACK feedback information
CN106549734A (en) * 2015-09-18 2017-03-29 中兴通讯股份有限公司 A kind of transmission method of information, terminal and base station

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI: ""Introduction of MUST in 36.212"", 《3GPP TSG RAN WG1 MEETING #87 R1-1611300》 *
HUAWEI: ""Introduction of Shortened Processing Time and Shortened TT1 into 36.212"", 《3GPP TSG RAN WG1 MEETING #90BIT R1-1719234》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021030977A1 (en) * 2019-08-16 2021-02-25 华为技术有限公司 Communication method and communication device
EP4027725A4 (en) * 2019-09-03 2023-09-20 ZTE Corporation Information enhancement method and apparatus, device, and storage medium
WO2021056264A1 (en) * 2019-09-25 2021-04-01 Nokia Shanghai Bell Co., Ltd. Dai scheme for joint ack/nack feedback in multi-trp/panel transmission
WO2021062703A1 (en) * 2019-09-30 2021-04-08 Zte Corporation Systems and methods for determining parameters for uplink and downlink transmissions in wireless communication networks
WO2021204275A1 (en) * 2020-04-10 2021-10-14 华为技术有限公司 Method and device for transmitting feedback information

Also Published As

Publication number Publication date
CN110061816B (en) 2020-07-14
WO2020042528A1 (en) 2020-03-05

Similar Documents

Publication Publication Date Title
CN110061816B (en) Mobile communication system, network equipment, terminal equipment and data scheduling method
CN110876204B (en) Mobile communication system, network equipment, terminal equipment and data scheduling method
US11991007B2 (en) Method and apparatus for transmitting HARQ-ACK/NACK in wireless communication system
EP3566378B1 (en) Method and apparatus for transmitting harq-ack/nack in wireless communication system
US10159069B2 (en) Method, device and system for transmitting control information
US10727985B2 (en) Control information sending method and communications device
CN110519025B (en) Semi-persistent scheduling hybrid automatic repeat request feedback method and equipment
EP2294744B1 (en) Method and arrangement in a telecommunication system with signalling of assigned data packets in a bundling window
CN101958775B (en) Sending method of acknowledgment information and user equipment
EP4366436A2 (en) Method and apparatus for transmitting and receiving signal in mobile communication system
WO2016162090A1 (en) Enhanced carrier aggregation in communications
WO2021027754A1 (en) Method and apparatus for sending and receiving feedback information, and storage medium
CN111800232A (en) Uplink control information transmission method and device
CN107370570B (en) Feedback information transmission method, UE, base station and system
CN111193578B (en) Method and system for triggering HARQ-ACK feedback information and method and system for sending HARQ-ACK feedback information
CN111954307A (en) Communication method and device in wireless communication network
CN102215085A (en) Method, system, user equipment and base station for transmitting uplink control information
WO2017028005A1 (en) Feedback information transmission method, user equipment, and base station
WO2012065438A1 (en) Method and terminal for confirmation information feedback
CN103378953A (en) Hybrid automatic repeat-request (HARQ) method and apparatus
CN112821990B (en) HARQ-ACK transmission method and device
CN110663209A (en) Transmission method, device and system for feedback response information
CN109691006B (en) Feedback response information sending method, receiving method, device and system
CN109560896B (en) Method and system for data transmission based on code block group in 5G system
CN105264806B (en) A kind of transmission method and equipment of data message

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant