CN109152053B - Transmission timing determination and indication method, communication device and storage medium - Google Patents

Transmission timing determination and indication method, communication device and storage medium Download PDF

Info

Publication number
CN109152053B
CN109152053B CN201710687689.3A CN201710687689A CN109152053B CN 109152053 B CN109152053 B CN 109152053B CN 201710687689 A CN201710687689 A CN 201710687689A CN 109152053 B CN109152053 B CN 109152053B
Authority
CN
China
Prior art keywords
time domain
domain scheduling
scheduling unit
signaling
transmission
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.)
Active
Application number
CN201710687689.3A
Other languages
Chinese (zh)
Other versions
CN109152053A (en
Inventor
柯颋
夏亮
侯雪颖
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 Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
Original Assignee
China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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 Mobile Communications Group Co Ltd, China Mobile Communications Ltd Research Institute filed Critical China Mobile Communications Group Co Ltd
Publication of CN109152053A publication Critical patent/CN109152053A/en
Application granted granted Critical
Publication of CN109152053B publication Critical patent/CN109152053B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The embodiment of the invention discloses a transmission time sequence determining and indicating method, communication equipment and a storage medium, wherein the transmission time sequence determining method applied to a terminal comprises the following steps: receiving a first signaling sent by a base station; after receiving the first signaling, determining a transmission timing of predetermined data based on a set of available time domain scheduling units, wherein the transmission timing of the predetermined data comprises: at least one of transmission time sequence of HARQ feedback data, receiving time sequence of downlink data and transmitting time sequence of uplink data is requested to be retransmitted by the hybrid automatic request of the downlink data; the set of available time domain scheduling units comprises: one or more available time domain scheduling units for the predetermined data transmission.

Description

Transmission timing determination and indication method, communication device and storage medium
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a transmission timing determining and indicating method, a communication device, and a storage medium.
Background
In a New interface (NR) of the fifth generation (5 generation,5 g), it is proposed to indicate the timing of Hybrid Automatic Reqeut (HARQ) by using Radio resource control (Radio Resource Control, RRC) signaling and downlink control information (Downlink Control Information, DCI).
However, in the actual use process, the RRC signaling or the first signaling indicates the delay set of the retransmission, and indicates, by using the index value, which delay value in the delay set is adopted, so as to inform the terminal (also referred to as user equipment) which delay is specifically adopted for HARQ retransmission. The User Equipment is also called simply (UE). But this way of determining HARQ has a large signaling overhead.
Disclosure of Invention
In view of the foregoing, an embodiment of the present invention is expected to provide a transmission timing determining and indicating method, a communication device, and a storage medium for solving the above-mentioned problem of high signaling overhead.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
an embodiment of the present invention provides a transmission timing determining method, applied to a terminal, including:
receiving a first signaling sent by a base station;
determining a transmission time sequence of predetermined data based on an available time domain scheduling unit set according to the receiving parameters and/or carried information of the first signaling,
wherein the transmission timing of the predetermined data includes: at least one of transmission time sequence of HARQ feedback data, receiving time sequence of downlink data and transmitting time sequence of uplink data is requested to be retransmitted by the hybrid automatic request of the downlink data;
The set of available time domain scheduling units comprises: one or more time domain scheduling units available for transmission of the predetermined data.
A second aspect of an embodiment of the present invention provides a transmission timing indication method, which is applied to a base station, and includes:
transmitting a first signaling to a terminal, wherein the receiving parameter and/or the carried information of the first signaling are used for the terminal to determine the transmission time sequence of preset data based on an available time domain scheduling unit set; the transmission timing of the predetermined data includes: at least one of a transmission timing of HARQ feedback data of the downlink data, a reception timing of the downlink data, and a transmission timing of the uplink data; the set of available time domain scheduling units comprises: one or more available time domain scheduling units located in the predetermined data transmission.
A third aspect of the present invention provides a communication device, including:
a first transceiver for information interaction with other communication devices
And the first processor is connected with the first transceiver and is used for realizing the transmission time sequence determining method or the transmission time sequence indicating method provided by any one of the technical schemes through executing a computer program.
A fourth aspect of an embodiment of the present invention further provides a communication device, including: a second processor and a computer program;
the second processor is configured to implement the transmission timing determining method or the transmission timing indicating method provided in any one of the foregoing technical solutions by executing the computer program.
The fifth aspect of the embodiment of the present invention further provides a computer storage medium, where a computer program is stored, where the transmission timing determining method and/or the transmission timing indicating method provided by any one of the foregoing technical solutions are implemented.
When the transmission time sequence determination is performed, the transmission time sequence determination and indication method, the communication equipment and the storage medium provided by the embodiment of the invention can trigger the terminal to determine the transmission time sequence of the preset data based on the available time domain scheduling unit set through the transmission of the first signaling. The transmission timing may be at least one of transmission timing of HARQ feedback data for hybrid automatic repeat request of downlink data, reception timing of downlink data, and transmission timing of uplink data. On the one hand, the method is directly based on the indication available time domain scheduling unit, and can be less in bits required for indicating the time delay value, so that signaling overhead is reduced; on the other hand, the terminal determines based on the available time domain scheduling unit set by itself, and does not need to specifically instruct the base station through signaling, and the base station can not send the instruction information again or send the instruction information with a small number of bits, so that the signaling overhead is reduced again, the overall instruction overhead is reduced, and the method has the characteristic of small signaling overhead.
Drawings
Fig. 1 is a flow chart of a transmission timing determining method according to an embodiment of the present invention;
fig. 2 is a flowchart of a transmission timing indication method according to an embodiment of the present invention;
fig. 3 is a flowchart of a transmission timing determining method according to an embodiment of the present invention;
fig. 4 is a flowchart of a transmission timing indication method according to an embodiment of the present invention
Fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a frame structure according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a frame structure and an available time schedule set according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of frame structure and timing determination according to an embodiment of the present invention;
FIG. 9 is a diagram illustrating another frame structure and timing determination according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of still another frame structure and timing determination according to an embodiment of the present invention;
fig. 11 is a schematic diagram of still another frame structure and timing determination according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further elaborated below by referring to the drawings in the specification and the specific embodiments.
As shown in fig. 1, the present embodiment provides a transmission timing determining method, which is applied to a terminal, and includes:
Step S110: receiving a first signaling sent by a base station;
step S120: determining a transmission time sequence of preset data based on an available time domain scheduling unit set according to the receiving parameters and/or carried information of the first signaling;
wherein the transmission timing of the predetermined data includes: at least one of transmission time sequence of HARQ feedback data, receiving time sequence of downlink data and transmitting time sequence of uplink data is requested to be retransmitted by the hybrid automatic request of the downlink data; the set of available time domain scheduling units comprises: one or more available time domain scheduling units for the predetermined data transmission.
In some embodiments, the transmission timing may be: at least one of a transmission time sequence of the HARQ feedback data of the hybrid automatic request retransmission of the first signaling, a receiving time sequence of the downlink data of the first signaling scheduling and a sending time sequence of the uplink data of the first signaling scheduling; the set of available time domain scheduling units comprises: one or more available time domain scheduling units for the predetermined data transmission.
The transmission time sequence determining method in the embodiment is a method applied to a terminal, where the terminal may include a mobile phone carried by a person, a personal terminal such as a tablet computer, a vehicle-mounted terminal carried by a vehicle such as a car, and an internet of things terminal of an intelligent device such as an intelligent water meter or an electric meter.
The first signaling herein may be one or more of RRC signaling, MAC signaling, and Downlink Control Information (DCI) signaling.
After receiving the first signaling, the terminal automatically determines a transmission timing sequence based on the set of available time domain scheduling units.
In this embodiment, the step S120 may include: and selecting an available time domain scheduling unit meeting the current transmission requirement from the available time domain scheduling unit set according to a preset rule based on the receiving parameters of the first signaling and/or the information content carried by the first signaling to transmit the preset data, thereby determining the transmission time sequence of the preset data.
The transmission timing here may be a transmission timing of HARQ feedback data for downlink data reception, a reception timing for downlink data reception, and a transmission timing for uplink data transmission. The time sequence for receiving the downlink data at least comprises the following steps: and receiving the receiving time sequence of the new transmission data transmitted for the first time by the downlink and receiving the receiving time sequence of the retransmitted retransmission data. The timing for sending the uplink data may include: and the time sequence of the terminal sending the uplink service data. The timing of the HARQ feedback may include: an Acknowledgement (ACK) or non-acknowledgement (NACK) indicating reception of downlink data, etc.
Specifically, the transmission timing may be: a time difference between a time at which the predetermined data is transmitted or received and a reference time. The transmission timing of the HARQ feedback of the downlink data may be, for example: and transmitting the time difference between the time of HARQ feedback and the time of receiving corresponding downlink data. The receiving timing of the downlink data may be: and a time difference between the time of receiving the downlink data and the time of receiving the corresponding scheduling information. The transmission timing of the uplink data may be: and sending the time difference between the uplink data and the moment of receiving the corresponding scheduling information. In the above example, the reference time is a time of receiving the downlink data and a time of receiving corresponding scheduling information, respectively.
A predetermined transmission period, which is a transmission period for transmitting predetermined data, may include: one or more time domain scheduling units. The one preset transmission period may be a relatively large transmission unit divided in a time domain by one frame, one subframe, or two frames or two subframes, etc. The available time domain scheduling units may be time domain scheduling units excluding pre-configured for fixed use on a predetermined transmission period. In this embodiment, one of the available time domain scheduling units may be a transmission unit for performing data transmission, and thus, the corresponding available time domain scheduling unit may be a pre-configured fixed time domain resource for data transmission, or a flexible time domain resource capable of being configured as downlink transmission.
The available time domain scheduling units are as follows: one of a subframe, a slot, a minislot, and a transmission symbol.
The minislot may be a transmission unit that includes at least one transmission symbol and includes fewer transmission symbols than the slot.
The transmission time sequence determining method in this embodiment is determined directly based on the available time domain scheduling unit set, so that in the determining process of the transmission time sequence, the available time domain scheduling unit set can be indicated directly, or the available time domain scheduling units in the available time domain scheduling unit set can be indicated, or the parameters of the available time domain scheduling units can be selected, so that the terminal can conveniently determine the transmission time sequence based on the receiving parameters of the first signaling and/or the content carried by the first signaling by itself, or only after the first signaling is received, the triggering terminal determines the transmission time sequence based on the preset rule, and the method has the characteristic of small signaling overhead.
In some embodiments, the terminal needs to know the set of available time domain scheduling units in advance. The method may further comprise:
determining the set of available time domain scheduling units by pre-engagement with a base station, wherein the set of available time domain scheduling units comprises: at least one of a set of available time domain scheduling units for HARQ feedback data transmission, a set of available time domain units for uplink data transmission, and a set of available time domain units for downlink data transmission.
Thus, by pre-agreeing, both the terminal and the terminal can know the set of available time domain scheduling units in advance. For example, it is agreed that all time slots are available time domain scheduling units. This embodiment is applicable to a fully dynamic time division multiplexing (TDD) transmission scenario.
As shown in fig. 2, before determining the transmission timing, the method further includes:
step S101: the receiving base station transmits a second signaling at least comprising the set indication information;
step S102: determining the set of available time domain scheduling units based on the second signaling, wherein the set of available time domain scheduling units comprises: at least one of a set of available time domain scheduling units for HARQ feedback data transmission, a set of available time domain units for uplink data transmission, and a set of available time domain units for downlink data transmission.
The second signaling in this embodiment may be one or more of RRC signaling, MAC layer signaling, DCI signaling, and the like, and in some embodiments may also be system message signaling, and the like. The second signaling may be at least one of RRC signaling, MAC layer signaling, DCI signaling, and the like.
In some embodiments, the first signaling and the second signaling may be RRC signaling, and the first signaling and the second signaling may also correspond to the same RRC signaling, or two RRC signaling transmitted at different times.
In some embodiments, the first signaling and the second signaling may be DCI signaling, and the first signaling and the second signaling may also correspond to the same DCI signaling, or two DCI signaling transmitted at different times.
In other embodiments, the first signaling may be DCI signaling and the second signaling may be RRC signaling.
The first signaling and the first signaling in the specific implementation are not particularly limited to the above examples.
In this embodiment, at least set indication information may be carried in the second signaling directly, where the set indication information may be used to indicate a set of available time domain scheduling units in a preset transmission period; for example, the set indication information may be used to indicate which available time domain scheduling units exist in a specific preset transmission period, and before the terminal performs transmission of the predetermined information, the terminal may select, based on the reception parameter of the first signaling and/or the predetermined indication information carried in the first signaling, the corresponding available time domain resource to perform transmission of the predetermined information in combination with the available time domain scheduling unit, so as to determine the transmission timing.
The step S120 may include: and determining the transmission time sequence of the preset data by combining the available time domain scheduling unit set and a preset rule.
In this embodiment, the preset rule may be predetermined by negotiating between the base station and the terminal. The preset rule may be a functional relation or a mapping relation for determining the transmission timing sequence, etc.
In some embodiments, the step S120 may determine the transmission timing based on a reception parameter of the first signaling and/or carried predetermined indication information.
The reception parameters may include: and a time domain scheduling unit where the first signaling is located, and the like.
In this embodiment, the first signaling and the first signaling may be existing signaling in a wireless communication technology, and in this embodiment, the terminal may determine a transmission time slot according to a preset rule set in advance by negotiation or based on a communication protocol through receiving set indication information in the second signaling, which at least reduces signaling overhead compared with a manner in the prior art that a plurality of indication bits are used to indicate a set of transmission delays of each HARQ and select a corresponding indication manner of the transmission delays from the set.
For example, if the transmission delay is indicated, if there are 4 available time domain scheduling units, the delay corresponding to the 4 available time domain scheduling units is 4, and each at least needs two bits or more to indicate, at least 8 bits need to be consumed to indicate the transmission delay set. If the index value of retransmission is indicated, a transmission delay is selected by at least 2 bits corresponding to the index value. In this embodiment, if the preset transmission period includes 6 time domain scheduling units, if 2 of the preset transmission periods are eliminated, and 4 remaining available time sequence scheduling units are also eliminated, 1 bit may be used to indicate whether the corresponding time domain scheduling unit is available, so that at most 6 bits are consumed, and signaling overhead for performing the indication is reduced. On the other hand, when determining the transmission time sequence, the terminal automatically determines according to a preset rule in combination with the available time sequence scheduling unit set, and does not need to comprehensively indicate by the base station by using specific signaling, so that the signaling overhead is obviously saved again. Therefore, the method of the embodiment is utilized to determine the transmission time sequence, and has the characteristic of small expenditure of signaling sent by the base station.
In some embodiments, the step S120 may include: and determining the transmission time sequence based on the receiving parameters of the first signaling and/or the information carried by the first signaling by combining the preset rule and the available time domain scheduling unit set. The reception parameter may be a reception time domain scheduling unit of the first signaling. Several alternatives are provided below based on this embodiment:
alternative one: the step S120 may include:
selecting a first time domain scheduling unit with the number not less than n+m in the available time domain scheduling unit set to transmit preset data; wherein m is a first offset, and m is an integer not less than 0.
For example, the time domain scheduling units within the set of available time domain scheduling units are numbered 4, 7 and 8; if n+m=6, then in this example, the time domain scheduling unit numbered 7 in the set of available time domain scheduling units is selected.
The value of n is related to the first signaling.
If the predetermined data is the data transmitted by the first signaling in a direct scheduling manner, the value of n is the number of the time domain scheduling unit for transmitting the first signaling, namely the number of the time domain scheduling unit where the first signaling is located.
If the predetermined data is the second data, the predetermined data is the data with a corresponding relation with the first data transmitted by the first signaling scheduling; for example, the first data is transmitted service data; the second data is feedback data indicating whether the service data is successfully received; the n may be the number of the time domain scheduling unit transmitting the first data, i.e. the number of the time domain scheduling unit where the first data is located. Of course, the second data may be feedback data of the first data, or may be data that has no direct association with the first data.
In some embodiments, the first offset may be parameters related to the processing power of the terminal and/or related to the data transmission delay, but the specific determination of the first offset may not be limited to these parameters. For example, the first offset may be determined by at least one of a minimum data processing delay of the terminal, a processing capability of the terminal, a processing delay of the base station, a processing capability of the base station, and a data transmission delay between the base station and the terminal. The processing capability of the terminal and the processing capability of the base station may include: the higher the encoding and decoding capability of the terminal and/or the base station, the faster the decoding speed of the data, and the faster the speed of retransmitting feedback or transmitting the data. The data transmission delay between the base station and the terminal can determine the distance and/or transmission environment between the base station and the terminal, etc. The minimum data processing delay of the terminal can be immediately: the time interval between the reception of one data by the terminal and the formation of feedback data for the reception condition of the data, etc., is of course only exemplified herein, and is not particularly limited thereto.
For example, the n=1, the m=2, and the set of available time domain scheduling units includes available time domain scheduling units of 2,4,5, and 7; p1=n+m=1+2=3, where p2 is not earlier than the first available time domain scheduling unit 4 of P1, p2=4, and the predetermined information here may be feedback data received by downlink data such as ACK or NACK, a retransmission request, or received downlink data. In this embodiment, the n, the m, the P1, and the P2 are all resource identifiers of corresponding time domain scheduling units in the preset transmission period. In the preset transmission period, the time domain resources are divided according to the scheduling unit and numbered sequentially, for example, the numbers can be started from 0 or started from 1, and the numbers are sequentially added with 1. The corresponding resource number is one of the resource identifiers. In some embodiments, the resource identification is not limited to the resource number.
This alternative can be expressed using the following formula:
Figure GDA0004053450870000091
mod N {g(n)}∈S
and n is the number of an available time domain scheduling unit where the first signaling is located, or the number of the time domain scheduling unit where the first data scheduled by the first signaling is located when the time domain scheduling unit is selected for transmitting the second data in the predetermined data. The m is a first offset related to the processing capacity of the terminal and/or related to the data transmission delay; the v is a traversal factor; the value of the traversing factor is 0 or a positive integer; the N is the total number of available time domain scheduling units contained in the current preset transmission period; and S is an available time domain scheduling unit set in a preset transmission period.
The change of the value v of the g (n) is used for obtaining the alternative dispatching unit; after the modulus of the g (N) corresponding pair N is obtained, the resource number of the scheduling unit of the alternative resource scheduling unit corresponding to the g (N) in the preset transmission period N is obtained; and if the resource number belongs to S, stopping the value change of the traversing factor, namely stopping the traversing of the traversing factor.
This alternative can be expressed using the following alternative formula:
g (n) =n+k, where k+.m, and g (n) is the first element in set S.
Alternative two:
the step S120 may include:
selecting an f (k) time domain scheduling unit with the number not less than n+m in the available time domain scheduling unit set to transmit predetermined data; wherein k is a timing factor indicated by the first signaling, and f (k) is a second offset determined according to the timing factor k indicated by the first signaling. And n is the number of the time domain scheduling unit where the first signaling is located, and when the time domain scheduling unit is selected to be used for transmitting the second data in the preset data, n is the number of the time domain scheduling unit where the first data scheduled by the first signaling is located. The f (k) is a function of calculating a second offset using the k as a dependent variable. f (k) is an integer not less than zero.
In this embodiment, the receiving parameter (i.e., n) determined by the first signaling and k carried by the predetermined indication information carried by the first signaling are combined at the same time, so as to determine the resource number of the available time domain scheduling unit for transmitting the predetermined information.
The base station and the terminal can determine the mapping relation between f (k) and k through a preset rule, or the base station can configure the mapping relation between f (k) and k through high-layer signaling.
In one embodiment, k is indicated with 1 bit in Downlink Control Information (DCI), and the mapping relationship of f (k) and k is determined by any method of pre-defining or higher layer signaling, such as
Figure GDA0004053450870000101
In another embodiment, k is indicated with 2 bits in DCI, and the mapping of f (k) to k is determined by either a pre-defined or higher layer signaling method, e.g
Figure GDA0004053450870000102
Obviously, the mapping relation determined by searching can be simply expressed as: f (k) =k+1. And when f (k) =1, means that transmission of the predetermined data is performed using the first (i.e., f (k) =1) available time domain scheduling unit in the set of available time domain scheduling units that is not earlier than n+m.
In some embodiments, f (k) =k, and in other embodiments, f (k) may be other preset functional relationships. In order to reduce the overhead of the first signaling, the f (k) =k+c, which is a constant, may be set according to the requirement; to reduce the number of bits consumed for transmitting said k. For example, in this embodiment the k itself is also a small number. The k is a natural number less than or equal to the number of time domain scheduling units included in the preset transmission period
Since the terminal needs to decode for a certain time after receiving the downlink data to determine whether retransmission is needed, in some cases, the transmission delay of the downlink data itself needs to be considered, and the value of m is generally not zero. And the first signaling is not necessarily transmitted on the 1 st available time domain scheduling unit. The k may be indicated with fewer bits and once indicated may be used for transmission of a plurality of predetermined information or pieces of predetermined information. The predetermined information may be the same type of information or different types of information. Obviously, even if the predetermined indication information is introduced into the first signaling, the overhead of the first signaling is still small.
This alternative can be expressed using the following formula:
the first step: a number not less than n + m is determined, and a number h (n) of a first of the available time domain scheduling units within the set of available time domain scheduling units S, wherein,
Figure GDA0004053450870000111
so that mod N { h (n) } ε S, where v.gtoreq.0
The v is a traversal factor; the value of the traversing factor is 0 or a positive integer; the N is the total number of available time domain scheduling units contained in the current preset transmission period; and S is a set of available time domain scheduling units in each preset transmission period.
The change of the value v of the h (n) is used for obtaining the alternative dispatching unit; after the N corresponding pair of h (N) is subjected to modulus, obtaining the resource number of a scheduling unit of an alternative resource scheduling unit corresponding to h (N) in a preset transmission period; and if the resource number belongs to S, stopping the value change of the traversing factor, namely stopping the traversing of the traversing factor.
And a second step of: f (k) -1 available time domain scheduling units after h (n) are selected in the available time domain scheduling unit set S, and the time domain scheduling unit number is g (n). In particular, when f (k) =1, g (n) is equal to h (n).
The value of g (n) can be expressed in mathematical language,
when f (k) =1, g (n) =h (n);
when f (k) >1, g (n) is selected such that p=f (k), where P is defined by the method,
there is set a= { h (n) +u } u=0,1,2,...,g(n)-h(n) = { h (n), h (n) +1, h (n) +2, …, g (n) }, i.e. the elements in set a are incremented by 1;
p is the property "element a in set A" in set A i (i.e. a i E A) element a of the N-modulo variable belonging to the set S' of available time-domain scheduling units i The number of (a), i.e
Figure GDA0004053450870000121
Wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure GDA0004053450870000122
wherein, n is the number of the time domain scheduling unit where the first signaling is located, or when the second data is selected to be transmitted from the time domain scheduling unit, n may be the number of the time domain scheduling unit where the first data is located, which is scheduled by the first signaling; the m is a first offset related to the processing capacity of the terminal and/or related to the data transmission delay; the k is a timing factor indicated by preset indication information carried by the first signaling; the f (k) is a function of calculating a second offset using the k as a dependent variable.
This alternative can be expressed using the following alternative formula:
g (n) =n+k, where k+.m, and g (n) is the f (K) th element in the set S of time domain schedule units.
In this embodiment, the method further includes:
and receiving the first offset determined by the base station based on the minimum data processing delay of the terminal.
In some embodiments, the method further comprises:
reporting the minimum data processing time delay to the base station;
wherein the minimum data processing delay comprises: at least one of a time delay between receiving data transmitted using a Physical Downlink Control Channel (PDCCH) and receiving data transmitted using a Physical Downlink Shared Channel (PDSCH), a time delay between receiving data transmitted using a PDCCH and transmitting data using a PUSCH, and a time delay between receiving data transmitted using a PDSCH and transmitting HARQ feedback data.
The minimum data delay generally determines the data processing capabilities of the terminal. For example, the delay from the reception of data transmitted by PDSCH to the transmission of HARQ feedback data is determined by the decoding capability of the terminal. When the terminal receives the downlink data, the terminal will perform decoding, and generally, the stronger the decoding capability is, the earlier the decoding time is, the smaller the minimum data processing delay of the HARQ is. The minimum data processing delay of the HARQ in this embodiment may be equal to the time required to complete decoding of a predetermined amount of downlink data.
In this embodiment, the terminal automatically reports the minimum data processing delay to the base station, and in some embodiments, the minimum data processing delay may be pre-stored in the base station. The base station may also determine the minimum data processing delay itself based on other information. For example, different types of terminals may all have a type identification, or different terminals may all have a terminal identification. The terminal and the base station perform data interaction, the transmitted data packet carries the type identifier or the terminal identifier of the terminal, and the base station can query a local database after receiving the type identifier or the terminal identifier so as to know the minimum processing capability of the terminal. In this embodiment, in order to ensure that the base station obtains a relatively accurate minimum data processing delay, the terminal may report the minimum data processing delay by itself, or the terminal may report the minimum data processing delay under the configuration of the base station. In this embodiment, reporting may be explicitly performed, for example, the terminal directly sends the minimum data processing delay to the base station, or may also implicitly report the minimum data processing delay through information such as a type identifier.
And the base station determines the first offset m according to the minimum data processing delay and sends the determined first offset to the terminal. For example, if the minimum data processing delay is T1, then m is the integer of T1/T0; and the T0 is the duration of one available time domain scheduling unit. In some embodiments, the m may be the sum of the T1/T0 rounding up and the delay amount.
In some embodiments, in order to simplify the determination and/or negotiation of m, the terminal may determine m according to its own minimum data processing delay by using the same method as that used by the base station to determine m, and then directly report the determined m to the base station, so that the base station only needs to receive m, and the base station does not need to calculate and issue m, thereby reducing the information interaction amount between the terminal and the base station, and further reducing the signaling overhead. Of course, the above is merely an example, and the present invention is not limited to any one of the above embodiments.
Optionally, the second signaling is further configured to indicate a time domain parameter of the preset transmission period. For example, the second signaling may be configured to indicate a time domain parameter of the preset transmission period through parameter indication information, for example, the parameter indication information may be at least used to indicate a period length of the preset transmission period.
In this embodiment, the period length may specifically be the number of time domain scheduling units included in the preset transmission period. For example, knowing the starting position of the time domain resource of the predetermined period in advance, by indicating the period length, the starting and ending positions of the predetermined period in the time domain can be determined.
In some embodiments, the parameter indication information may be further used to indicate a start time domain position and an end time domain position of the preset transmission period.
In still other embodiments, the time domain scheduling unit where the terminal receives the parameter indication information is the start time domain position of the preset transmission period, where the parameter indication information may include only one of the end time domain position and/or the period length, so that the time domain region corresponding to the preset transmission period can be explicitly known.
The time domain parameters include: at least one of a start time domain position, an end time domain position, and a period length.
In some embodiments, the set indication information is a bitmap indicating available time domain scheduling units within the preset transmission period. The bitmap includes one or more bits, each of which may indicate one time domain scheduling unit. And the value of the corresponding bit indicates whether the corresponding time domain scheduling unit is an available time domain scheduling unit. For example, one preset transmission period includes: s time domain scheduling units, the bitmap may include S bits. If 1 bit is "1" indicating that the corresponding time domain scheduling unit is available, the bit is "0" indicating that the corresponding time domain scheduling unit is not available. After receiving the bitmap, the terminal can determine the length of the preset transmission period and which time domain scheduling units are available.
In other embodiments, the set indication information includes: the unit offset of the available time domain scheduling unit and the set length of the available time domain scheduling unit set.
In this embodiment, the set of available time domain scheduling units includes 3 available time domain scheduling units, and then the set length may be indicated by using 2 bits. If the unit offset is 2, combining the unit offset and the set length, it can be determined that the time domain scheduling units with the resource numbers of 2,4 and 6 are the available time domain scheduling units. Obviously, the method has the characteristic of low signaling cost for indication.
As shown in fig. 3, the present embodiment provides a transmission timing indication method, which is applied to a base station, and includes:
transmitting a first signaling to a terminal, wherein the set indication information is used for triggering the terminal to determine a transmission time sequence of predetermined data based on an available time domain scheduling unit set; the transmission timing of the predetermined data includes: at least one of transmission time sequence of HARQ feedback data, receiving time sequence of downlink data and transmitting time sequence of uplink data is requested to be retransmitted by the hybrid automatic request of the downlink data; the set of available time domain scheduling units comprises: one or more available time domain scheduling units for the predetermined data transmission.
The transmission time slot indication method provided in the present embodiment may be a method applied in a base station, which may be a next generation base station (gNB) or a function extended evolved base station (eNB), or the like.
In this embodiment, first, the first signaling is used to predetermine indication information, which is used to indicate a parameter for selecting an available time domain scheduling unit for predetermined data; or the terminal may determine the transmission timing sequence according to the receiving parameter of the first signaling and in combination with a preset rule. In some embodiments, the first signaling may be used only as a trigger instruction for the trigger terminal to determine the transmission timing.
In this embodiment, the second signaling is RRC signaling, and the first signaling is DCI signaling; of course, the first signaling and the second signaling are not limited to RRC signaling and DCI signaling.
In summary, the first signaling and the second signaling may be at least one of RRC signaling, DCI signaling, and MAC layer signaling.
In some embodiments, after determining the transmission timing of the predetermined data based on the set of available time domain scheduling units and before transmitting the data using the first time domain scheduling unit corresponding to the transmission timing, the method further comprises:
Receiving a third signaling; wherein the third signaling is configured to indicate attribute information of the first time domain scheduling unit; the attribute of the first time domain scheduling unit comprises a transmission direction of part or all of transmission symbols included in the first time domain scheduling unit and/or a type of part or all of transmission symbols;
when the attribute of the first time domain scheduling unit determined based on the third signaling is inconsistent with the attribute of the first time domain scheduling unit determined based on the first signaling, changing a transmission parameter of a transmission behavior applied to the first time domain scheduling unit;
wherein the transmission behavior comprises: at least one of receiving Physical Downlink Shared Channel (PDSCH) information, transmitting physical uplink shared information (PUSCH) information, transmitting Physical Uplink Control Channel (PUCCH) information and transmitting HARQ feedback data.
The third signaling here may be signaling different from the first signaling and the second signaling. The third signaling in this embodiment may also be one or more of RRC signaling, DCI signaling, or MAC layer signaling.
In this embodiment, the third signaling carries an attribute indicating a time domain scheduling unit (i.e., the first time domain scheduling unit) for the predetermined output transmission determined according to the first signaling. In some application scenarios, due to the introduction of the service with the high burst priority, the number and the attribute of the available time domain scheduling units may be changed, and the change may be indicated by the third signaling, so that the terminal may adjust the transmission timing in time through the reception of the third signaling.
The attributes herein may include: the first time domain scheduling unit includes a change in the number, transmission direction, and type of transmission symbols. Types herein may include: the first time domain scheduling unit may be changed from an uplink transmission scheduling unit to a downlink transmission scheduling unit, or to a transmission scheduling unit of hybrid transmission, or to a dynamic transmission scheduling unit. The uplink transmission scheduling unit may be a time domain scheduling unit dedicated for uplink data transmission; the downlink transmission scheduling unit may be a time domain scheduling unit dedicated for downlink transmission. The transmission scheduling unit of the hybrid transmission may be: part of the time domain resource is used for uplink transmission and part is used for downlink transmission. A dynamic time domain scheduling unit, a time domain scheduling unit to be determined for a data transmission direction, and the like.
Optionally, the method further comprises:
judging whether the first time domain scheduling unit belongs to a preset time domain scheduling unit set or not;
the receiving third signaling includes:
and if the first time domain scheduling unit belongs to a preset time domain scheduling unit set, ignoring the third signaling.
In this embodiment, the predetermined set of time domain scheduling units may be temporarily received by the terminal from higher layer signaling, or automatically determined based on a resource scheduling rule.
The predetermined set of time domain scheduling units herein may include: one or more time domain scheduling units are different from the set of available time domain scheduling units. Wherein the predetermined time domain scheduling unit set includes: one or more time domain scheduling units having a fixed attribute.
If the first time domain scheduling unit is located in the predetermined time domain scheduling unit set, it means that the time domain scheduling unit may be used for services with high priority or the base station is used for other terminals with high priority, so that the third signaling needs to be received.
The manner of ignoring the third signaling includes:
not receiving the third signaling;
receiving the third signaling but not processing the third signaling, the not processing comprising: the third signaling is not parsed.
In some embodiments, the method further comprises:
judging whether the first time domain scheduling unit belongs to a preset time domain scheduling unit set or not;
and when the first time domain scheduling unit belongs to the preset time domain scheduling unit set, determining that the attribute of the first time domain scheduling unit determined based on the third signaling is inconsistent with the attribute of the first time domain scheduling unit determined based on the first signaling.
The predetermined set of time domain scheduling units may be indicated based on the third signaling or determined based on a reception parameter of the third signaling. If the first time domain scheduling unit belongs to the preset time domain scheduling unit set, the attribute indication of the first signaling and the second signaling to the same time domain scheduling unit is directly considered to be in conflict.
Optionally, the altering the transmission parameter applied to the transmission behavior of the first time domain scheduling unit includes at least one of:
changing a transmission behavior determined according to a first signaling and applied to the first time domain scheduling unit; for example, the transmission direction of the transmission behavior, the type of data transmitted by the transmission behavior, and the like are changed. The change in the transmission direction may include: a change between uplink and downlink; altering the type of data transmitted, comprising: changes from control signaling to traffic data, changes from newly transmitted data to retransmitted data, and the like. Of course, the altered transmission behavior herein may include, but is not limited to, the examples described above.
And discarding the transmission behavior determined according to the first signaling and applied to the first time domain scheduling unit and the first time domain scheduling unit. In this case, this corresponds to a direct suspension of the transmission behaviour.
And discarding the transmission behavior applied to the first time domain scheduling unit determined according to the first signaling, and continuing the transmission behavior applied to the second time domain scheduling unit according to the first signaling, wherein the second time domain scheduling unit is positioned behind the first time domain scheduling unit in the time domain. Here, this corresponds to delaying the transmission behavior.
Optionally, the continuing applies the transmission behavior of the second time domain scheduling unit according to the first signaling, including at least one of:
the second time domain scheduling unit is: a first one of the set of available time domain scheduling units located after the first time domain scheduling unit is a time domain scheduling unit consistent with an attribute of the first time domain scheduling unit determined based on the first signaling;
the second time domain scheduling unit is: a first pre-configured time domain scheduling unit located after the first time domain scheduling unit in the set of available time domain scheduling units;
the second time domain scheduling unit is: a (g 1) th time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set is consistent with the attribute of the first time domain scheduling unit determined based on the first signaling; wherein g1 is a preset positive integer;
The second time domain scheduling unit is: a g2 nd preconfigured time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set; wherein g2 is a preset positive integer.
Further, the changing the transmission parameters of the transmission behavior applied to the first time domain scheduling unit includes at least one of the following:
and changing at least one of the size of a transmission block, the coding and modulation strategy, the size of a time-frequency resource and the resource position of the time-frequency resource used by the transmission behavior.
Alternatively, the process may be carried out in a single-stage,
the first signaling is at least one of Radio Resource Control (RRC) signaling, media Access Control (MAC) layer signaling and Downlink Control Information (DCI) signaling; and/or the second signaling is at least one of the RRC signaling, the MAC layer signaling, and the DCI signaling; and/or, the third signaling is at least one of the RRC signaling, the MAC layer signaling, and the DCI signaling.
In some embodiments, as shown in fig. 4, the method includes:
step S201: sending a second instruction to the terminal; wherein the second signaling is used for determining the available time domain scheduling set unit by the terminal; wherein the set of available time domain scheduling units comprises: at least one of a set of available time domain scheduling units for HARQ feedback data transmission, a set of available time domain units for uplink data transmission and a set of available time domain units for downlink data transmission
Step S202: sending a first instruction to a terminal; the receiving parameters and/or the carried information of the first signaling are used for the terminal to determine the transmission time sequence of the preset data based on the available time domain scheduling unit set; the transmission timing of the predetermined data includes: at least one of transmission time sequence of HARQ feedback data, receiving time sequence of downlink data and transmitting time sequence of uplink data is requested to be retransmitted by the hybrid automatic request of the downlink data; the set of available time domain scheduling units comprises: one or more available time domain scheduling units located for the predetermined data transmission.
The second instruction may at least carry set indication information, where the set indication information may be used to indicate an available time domain scheduling unit in a preset transmission period, and after the terminal receives the first signaling, the terminal may know the available time domain scheduling unit in the preset transmission period by analyzing the set indication information.
In some embodiments, the second signaling is also sent to indicate an available time domain scheduling unit and a first offset. The available time domain scheduling unit and a first offset are used together for the terminal to determine the transmission time sequence, wherein the first offset is related to the processing energy of the terminal and/or related to the data transmission delay. The output transmission delay may include a transmission delay of downlink data, and may further include a transmission delay of the first signaling.
In some implementations, the method further comprises:
determining a first offset based on at least one of a minimum data processing delay of the terminal, a processing capability of the terminal, a processing delay of the base station, a processing capability of the base station, a data transmission delay between the base station and the terminal;
and sending a first offset determined based on the minimum data processing delay to a terminal through the second signaling, wherein the first offset and the available time domain scheduling unit are commonly used for the terminal to determine the transmission time sequence.
For example, before the first signaling is sent, an available time domain scheduling unit sent by the first signaling is determined based on the first offset, the first signaling is sent on the determined available time domain scheduling unit, and the DCI signaling is sent, so that the base station can control the transmission timing of the terminal.
Optionally, the method further comprises:
receiving the minimum data processing time delay reported by the terminal;
wherein the minimum data processing delay comprises: at least one of a time delay between receiving data transmitted using a Physical Downlink Control Channel (PDCCH) and receiving data transmitted using a Physical Downlink Shared Channel (PDSCH), a time delay between receiving data transmitted using a PDCCH and transmitting data using a PUSCH, and a time delay between receiving data transmitted using a PDSCH and transmitting HARQ feedback data.
In this embodiment, the base station receives the minimum data processing delay reported by the terminal, where the reporting mode may be explicit reporting or implicit reporting, and how to report may be referred to the foregoing embodiment, which is not repeated here. After the minimum data processing delay is received, the m is calculated, and specifically, if the minimum data processing delay is directly equal to an integer multiple of the time domain scheduling unit, the minimum data processing delay can be directly used as the m. Of course, the calculation can be performed according to the calculation formula, and the data transmission delay is considered.
The second signaling is further used for indicating a timing factor k; the k is a dependent variable of a function f (k); and f (k) is a function of calculating a second offset for the terminal.
For example, in some embodiments, the step S202 may include:
transmitting a first signaling carrying predetermined indication information to the terminal, wherein the predetermined indication information is used for indicating a timing factor k; the k is a dependent variable of a function f (k); and f (k) is a function of calculating a second offset for the terminal.
In this embodiment, the first signaling may further carry predetermined indication information, where the predetermined indication information includes a timing factor, and the timing factor is used to calculate the second offset by using a preset timing function f (k) after the terminal receives the second offset. In this way, when determining the transmission timing sequence, the terminal calculates the two offsets based on the first offset and the second offset, and the transmission mode adopting the timing factor has the characteristic of small signaling overhead.
Optionally, the set of available time domain scheduling units includes: one or more available time domain scheduling units located in a preset transmission period; the second signaling further carries parameter indication information, where the parameter indication information is used to indicate a time domain parameter of the preset transmission period, and the time domain parameter may include: and the cycle length and other parameters of the preset transmission cycle.
In this embodiment, the first signaling further carries parameter indication information, where the parameter indication information indicates information related to a preset transmission period, for example, a period length of the preset transmission period. The period length here is substantially a duration corresponding to the time domain resource included in the preset transmission period.
Optionally, the method further comprises:
transmitting a third signaling; wherein the third signaling is configured to indicate attribute information of the first time domain scheduling unit; the attribute of the first time domain scheduling unit comprises a transmission direction of part or all of transmission symbols included in the first time domain scheduling unit and/or a type of part or all of transmission symbols; the third signaling is configured to trigger the terminal to change a transmission parameter of a transmission behavior of the first time domain scheduling unit when the terminal determines that an attribute of the first time domain scheduling unit is inconsistent with an attribute of the first time domain scheduling unit determined based on the first signaling;
Wherein the transmission behavior comprises: at least one of receiving Physical Downlink Shared Channel (PDSCH) information, transmitting physical uplink shared information (PUSCH) information, transmitting Physical Uplink Control Channel (PUCCH) information and transmitting HARQ feedback data.
Further, the third signaling is received by the terminal after determining that the first time domain scheduling unit is located in a preset time domain scheduling unit set;
or alternatively, the process may be performed,
and when the first time domain scheduling unit is positioned in the preset time domain scheduling unit set, determining that the attribute of the first time domain scheduling unit determined based on the third signaling is inconsistent with the attribute of the first time domain scheduling unit determined based on the first signaling.
Optionally, the altering the transmission parameter applied to the transmission behavior of the first time domain scheduling unit includes at least one of:
changing a transmission behavior determined according to a first signaling and applied to the first time domain scheduling unit;
and discarding the transmission behavior determined according to the first signaling and applied to the first time domain scheduling unit and the first time domain scheduling unit.
And discarding the transmission behavior applied to the first time domain scheduling unit determined according to the first signaling, and continuing the transmission behavior applied to the second time domain scheduling unit according to the first signaling, wherein the second time domain scheduling unit is positioned behind the first time domain scheduling unit in the time domain.
Optionally, the continuing applies the transmission behavior of the second time domain scheduling unit according to the first signaling, including at least one of:
the second time domain scheduling unit is: a first one of the set of available time domain scheduling units located after the first time domain scheduling unit is a time domain scheduling unit consistent with an attribute of the first time domain scheduling unit determined based on the first signaling;
the second time domain scheduling unit is: a first pre-configured time domain scheduling unit located after the first time domain scheduling unit in the set of available time domain scheduling units;
the second time domain scheduling unit is: a (g 1) th time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set is consistent with the attribute of the first time domain scheduling unit determined based on the first signaling; wherein g1 is a preset positive integer;
the second time domain scheduling unit is: a g2 nd preconfigured time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set; wherein g2 is a preset positive integer.
Optionally, the changing the transmission parameter applied to the transmission behavior of the first time domain scheduling unit includes at least one of:
And changing at least one of the size of a transmission block, the coding and modulation strategy, the size of a time-frequency resource and the resource position of the time-frequency resource used by the transmission behavior.
In addition, the first signaling is at least one of Radio Resource Control (RRC) signaling, medium Access Control (MAC) layer signaling and Downlink Control Information (DCI) signaling; and/or the second signaling is at least one of the RRC signaling, the MAC layer signaling, and the DCI signaling; and/or, the third signaling is at least one of the RRC signaling, the MAC layer signaling, and the DCI signaling.
As shown in fig. 5, an embodiment of the present invention provides a communication device, including:
a first transceiver 110 for information interaction with other communication devices;
the first processor 120 is connected to the first transceiver, and is configured to implement the transmission timing determining method or the transmission timing indicating method provided by any one or more of the foregoing technical solutions by executing a computer program.
When the communication device is a terminal, the first processor 120 may implement one or more of the aforementioned transmission timing determination methods through execution of a computer program. Correspondingly, the first transceiver 110 may be configured to communicate with a base station.
When the communication device is a base station, the first processor 120 may implement one or more of the aforementioned transmission timing indication methods through execution of a computer program. Correspondingly, the first transceiver 110 may be used for communication with a terminal.
The first processor 120 in this embodiment may be a processor or a processing circuit such as CPU, MCU, DSP, AP, PLC or ASIC.
The base station or the terminal formed by the communication equipment can establish a wireless communication system, and the terminal can determine the transmission time sequence through the interaction of the first signaling and has the characteristic of low signaling overhead.
The present embodiment provides a communication apparatus including: a second processor and a computer program;
the second processor is configured to implement the transmission timing determining method or the transmission timing indicating method provided by any one or more of the foregoing technical solutions by executing the computer program.
The present embodiment provides a communication device including a second processor and a computer program. The computer program herein may be computer executable code that is executed by the second processor. The second processor may also be a processor or processing circuit such as CPU, MCU, DSP, AP, PLC or ASIC.
When the communication device is a terminal, the second processor may implement one or more of the aforementioned transmission timing determination methods through execution of a computer program.
When the communication device is a base station, the second processor may implement one or more of the aforementioned transmission timing indication methods by execution of a computer program.
The embodiment of the invention also provides a computer storage medium, which stores a computer program, and the computer program can realize the transmission time sequence determining method or the transmission time sequence indicating method provided by any one or more of the technical schemes after being executed by a processor.
The computer storage medium may be a read-only storage medium, a flash memory, a mobile hard disk, an optical disk, a magnetic tape, or other storage media, and may be a non-transitory storage medium.
Several specific examples are provided below in connection with any of the above embodiments:
example 1:
the present example proposes a HARQ timing indication method, comprising:
the base station configures an available time domain scheduling unit set consisting of at least one time domain scheduling unit in a preset transmission period through RRC signaling;
and after receiving the DCI signaling, the UE selects an available time domain scheduling unit from the available time domain scheduling unit set according to a preset rule so as to determine a scheduling time sequence.
Fig. 6 shows a frame structure comprising 10 slots, the slot numbers being #0, # … … #09 in order. In the frame structure shown in fig. 6, slots #0 and #1 are DL slots, slot #04 is UL slots, slot #2 and #3 are dynamic slots, and slot numbers #5 to #9 repeat slot configurations of slot numbers #0 to # 4. The dynamic time slot can be flexibly configured as an uplink time slot or a downlink time slot.
In the following, taking an ACK/NACK feedback timing (i.e., K1) of DL transmission data as an example, the available value sets of ACK/NACK feedback timing (K1) have a large difference when DL data transmission is performed on different timeslots. Note that this analysis procedure can also be used to analyze the timing (K2) relationship between UL data transmissions and to draw similar conclusions.
Obviously, the UE can only feed back ACK/NACK of DL transmission data on a fixed UL slot and/or a flexible uplink and downlink slot, and cannot feed back ACK/NACK of DL transmission data on a fixed DL slot. In the following analysis, it is assumed that the UE may feedback ACK/NACK information of DL transmission data on both the fixed UL slot and/or the flexible uplink and downlink slots, and thus the absolute number set of slots potentially available for feedback of ACK/NACK information of DL transmission data is { #2, #3, #4}.
The UE processing capability is again considered. Assuming that the base station transmits DL data on time slot n and the UE needs a certain processing time (e.g., for demodulation, decoding, etc.), the UE can only feedback ACK/NACK on time slot n+m at the earliest. In the following embodiment, m=2 may be set. It should be noted that the value of m is related to the UE processing capability, and different UEs may have different processing capabilities, so different values of m may be used.
Table 1K1 value set (m=2)
Figure GDA0004053450870000241
/>
TABLE 1
In the above table, K1 is the absolute delay between DL data transmission and the corresponding HARQ-ACK. Obviously, when DL scheduling DCI is carried in different DL slots, the value of K1 is different.
In a first embodiment, a timing indication field K1 is included in the DL scheduling DCI.
As shown in table 1, to indicate the 1 st timing relationship, the K1 maximum is 4, and therefore, needs to be used in DCI
Figure GDA0004053450870000242
The bits indicate timing information. Or alternatively, the process may be performed,
as shown in table 1, to indicate the first 2 timing relationships, K1 maximum is 5, and therefore, needs to be used in DCI
Figure GDA0004053450870000255
The bits indicate timing information.
In order to reduce the timing information indication overhead in the DCI, the base station side may pre-configure a mapping relation table of the timing indication field K1 and the absolute timing K1 in the DCI and indicate the mapping relation table to the UE through RRC signaling.
In a second embodiment, the base station establishes a mapping relation table of K1 and K1, and indicates the mapping relation table to the UE through RRC signaling.
To indicate the 1 st timing relationship, the following mapping table is established. Since K1 has 2 states in total, it is necessary to use in DCI
Figure GDA0004053450870000253
The bits indicate the timing information k1, which can be specifically shown in table 2 below:
Figure GDA0004053450870000251
TABLE 2
Alternatively, to indicate the first 2 timing relationships, the following mapping table is established. Since K1 has 4 states in total, it is necessary to use in DCI
Figure GDA0004053450870000254
The bits indicate timing information k1 as follows in table 3:
Figure GDA0004053450870000252
TABLE 3 Table 3
In order to further reduce signaling overhead in DCI, a third embodiment is proposed, i.e. the base station is preconfigured: preset transmission period = 5 slots; the set of available time domain scheduling units= [ #2, #3, #4] slots; m=2.
Also, to indicate the 1 st timing relation, a 1-bit timing indication field (k 1) needs to be used in DCI signaling; while only a 1-bit timing indication field (k) needs to be used for indication based on k.
To further reduce signaling indication overhead in DCI, in this example to indicate the 1 st timing relationship, i.e. the base station pre-configures the timing relationship: preset transmission period = 5 slots; the set of available time domain scheduling units= [ #2, #3, #4] slots; m=2, and can be specifically listed as follows.
Figure GDA0004053450870000261
With the method of the present example, the determination of the transmission timing can be as shown in fig. 9. As can be seen from fig. 9, the UE can accurately determine the 1 st timing relation without using a timing indication field in the DCI.
Also to indicate the 1 st timing relation, it may be necessary to use a 1-bit timing indication field (k 1) in the DCI; in embodiment 3, the timing indication field is not used.
In particular, in order to indicate the first 2 timing relationships, a fourth embodiment is used, i.e. the base station is preconfigured: preset transmission period = 5 slots; the set of available time domain scheduling units= [ #2, #3, #4] slots; f (k) =k+1; m=2, and can be specifically listed as follows.
Figure GDA0004053450870000262
/>
Figure GDA0004053450870000271
In comparison with embodiment 2, also in order to indicate the first 2 timing relationships, embodiment 2 requires the use of a 2-bit timing indication field (k 1) in the DCI; whereas in embodiment 3, only the 1-bit timing indication field (k) needs to be used.
Fig. 10 is a schematic diagram of transmission timing determination using k 1.
Example 2:
in this example, the UE feeds back acknowledgement information corresponding to DL data according to the determined scheduling timing; or, the UE receives corresponding DL data according to the determined scheduling time sequence; or the UE transmits the corresponding UL data according to the determined scheduling time sequence.
For example, for the transmission scenario of DL data (K0), the set of available time domain scheduling units may be of the following slot type:
first kind: the set of available time domain scheduling units comprises: pre-configured DL slots;
second kind: the set of available time domain scheduling units comprises: the pre-configured DL pre-configured hybrid time slots, wherein the hybrid time slots include: uplink transmission symbols, downlink transmission symbols and/or time slots of guard intervals.
Third kind: pre-configured DL and/or hybrid time slots, and dynamic time slots.
Fourth kind: the set of available time domain scheduling units comprises: dynamic time slots.
For the ACK/NACK feedback scenario (K1) of DL data, the set of available time domain scheduling units may be of the following slot types:
first kind: the set of available time domain scheduling units comprises: pre-configured UL slots;
second kind: the set of available time domain scheduling units comprises: pre-configuring a pre-configured mixed time slot of an UL time slot, wherein the mixed time slot comprises: uplink transmission symbols, downlink transmission symbols and/or time slots of guard intervals.
Third kind: pre-configured DL and/or hybrid time slots, and dynamic time slots;
Fourth kind: the set of available time domain scheduling units comprises: dynamic time slots.
For the transmission scenario (K2) of UL data, the set of available time domain scheduling units may be as follows:
first kind: the set of available time domain scheduling units comprises: pre-configured UL slots;
second kind: the set of available time domain scheduling units comprises: pre-configuring a pre-configured mixed time slot of an UL time slot, wherein the mixed time slot comprises: time slots of uplink transmission symbols, downlink transmission symbols and/or guard intervals;
fourth kind: the set of available time domain scheduling units comprises: dynamic time slots.
The base station may configure different sets of available time domain scheduling units for different UEs, and may also configure different sets of available time domain scheduling units according to transmission scenarios of different UEs.
As shown in fig. 7 and 8, based on the same frame structure, for UE1 with strong decoding capability, the set of available time domain scheduling units for HARQ configured includes: time slots numbered #2, #3, and # 4. For UE2 with weaker decoding capability, the set of available time domain scheduling units configured for HARQ includes: the time slots numbered #3 and # 4. Of course, this is merely an example and is not limited to the above-described problem.
For example, in some low-release UEs, many slots within a period are reserved; while for some high-release UEs all slots appear to be available.
Alternatively, for some UEs carrying special services, such as an application scenario of the internet of things (eMTC) UE or an internet of things (IoT) UE composed of objects, from the perspective of the gNB, there may be a performance optimization space for the UEs to schedule them to be centralized on certain timeslots, so that part of the timeslots in the period are not available for these UEs; while for other UEs, such as enhanced mobile bandwidth (eMBB) UEs or low latency high reliability communication (URLLC) UEs, these timeslots should be available.
Thus, the base station should be allowed to configure different sets of available time domain scheduling units for different UEs. In this case, any type of UE is processed according to a unified rule.
The time domain scheduling unit may employ any one of a subframe, a slot, a micro slot, an Orthogonal Frequency Division Multiplexing (OFDM) symbol.
In some scenarios, the DCI signaling as the first signaling does not include predetermined indication information.
The UE determines the scheduling time sequence as a first available time domain scheduling unit with the number not less than n+m in the available time domain scheduling unit set; wherein n is the number of a time domain scheduling unit where DCI signaling is located, or the number of a time domain scheduling unit where other data except predetermined data scheduled by DCI signaling is located; m is a certain configuration parameter;
In some scenarios, the DCI signaling as the first signaling includes predetermined indication information.
The UE determines the scheduling time sequence as f (k) available time domain scheduling units with the number not less than n+m in the available time domain scheduling unit set; wherein n is the number of a time domain scheduling unit where DCI signaling is located, or the number of a time domain scheduling unit where other data except predetermined data scheduled by DCI signaling is located; k is a timing factor contained in the DCI signaling; f (k) is a mapping function.
In some examples, m may be related to a UE processing capability related parameter. For example, for a frequency division multiplexing (FDD) LTE system, the processing delay from the reception of DL data by the UE to the calculation of ACK/NACK information by the UE is about 3ms. And the base station combines parameters such as UE processing capacity, data transmission delay and the like (such as 3 ms) to determine m.
As shown in fig. 9, for a specific UE, the base station may configure the available time-sequence scheduling unit set to include slots (# 2, #3, # 4) and m=2, and then after receiving DCI signaling on slot #0, i.e., n=0 and m=2, n+m=2, select the first available time-domain scheduling slot not less than slot number #2 to be #2; after receiving DCI signaling on slot #2, n=1 is selected, and m=2, n+m=3, and the first available time domain scheduling slot not less than slot number #3 is selected as #3. After slot #3 receives the DCI signaling, i.e., n=3 and m=2, then n+m=5, selecting the first available time domain scheduling slot not less than slot number #5 to be #7.
As shown in fig. 10, for a specific UE, the base station configures its available set of time slot scheduling units to include time slots (# 2, #3, # 4) and m=2, and f (k) =k+1. Then after receiving DCI signaling on slot #0 and when k=0, i.e. n=0 and m=2, then n+m=2, f (k) =1, selecting the 1 st available time domain scheduling slot not earlier than slot number #2 as #2; after DCI signaling is received on slot #3 and k=0, then n=3 and m=2, then n+m=5, f (k) =1, and the 1 st available time domain scheduling slot not earlier than slot number #5 is selected as #7. After slot #3 receives the DCI signaling and when k=1, i.e. n=3 and m=2, then n+m=5, f (k) =2, the 2 nd available time domain scheduling slot no earlier than slot number #5 is selected as #8. In fig. 10, a slot pointed at the beginning of an arrow is a slot for receiving DCI, and a slot pointed at the end of an arrow is a slot for scheduled data transmission determined based on the f (k) th available time domain scheduling slot not earlier than n+m.
Further, the terminal reports the minimum HARQ processing time to the base station; the base station determines m according to the minimum HARQ processing time reported by the UE; the base station configures m for the UE through RRC signaling.
In some cases, the DCI signaling does not include timing indication information.
Time domain scheduling units corresponding to the scheduling time sequences
Figure GDA0004053450870000301
So that mod N { g (n) } E S, wherein S is a set of available time domain scheduling units configured by a base station, and v is more than or equal to 0 and is a non-negative integer.
In some cases, the base station configures a preset transmission period through RRC signaling. The preset transmission period includes at least a period length.
The method may further comprise the steps of,
indicating the set of available time domain scheduling units through a bitmap in RRC signaling; or, the set of available time domain scheduling units is jointly indicated in RRC signaling by a starting available time domain scheduling unit offset and a set length within a period.
The 5G NR has supported a dynamic HARQ timing indication technique, that is, the NR flexibly indicates a retransmission timing of retransmission data of HARQ, a transmission timing of uplink data transmission, and a reception timing of downlink data reception through a specific bit field in DCI signaling.
For a typical semi-static frame structure (i.e. there are time slots with fixed UL/DL transmission directions in a certain period), the available time sequence sets for the different time slots are different. If the prior information such as the fixed time slot is considered, the HARQ time sequence indication mode can be optimally designed so as to reduce the HARQ time sequence indication overhead.
Based on the above consideration, the scheme provides an efficient HARQ time sequence indication method, which can effectively reduce the HARQ time sequence dynamic indication overhead on the premise of keeping the HARQ time sequence dynamic range basically unchanged.
Example 3
The specific composition of the first signaling and the second signaling in this example may be the following options:
first kind: the first signaling and the second signaling may be RRC signaling;
second kind: the first signaling and the second signaling are DCI signaling, e.g., common physical downlink control channel signaling (group common PDCCH) for a user equipment group
Third kind: the first signaling is DCI and the second signaling is RRC signaling.
The concrete explanation is as follows:
for the case where both the first and second signaling are RRC signaling:
the base station indicates a first signaling through RRC signaling, wherein the first signaling comprises an available time domain scheduling unit set.
For the case that both the second first signaling and the second signaling are DCI signaling.
The base station indicates an available time domain scheduling unit set through DCI signaling;
wherein the DCI signaling may be carried in group common PDCCH, the same applies below.
Aiming at the situation that the first signaling is DCI and the second signaling is RRC signaling in the third type;
case 1:
the base station firstly configures an available time domain scheduling unit set through RRC signaling;
the base station updates and indicates the available time domain scheduling unit set through DCI signaling;
case 2:
the base station firstly configures an available time domain scheduling unit set through RRC signaling;
The base station updates the type of the specific time slot in the base station period through DCI signaling;
the UE updates the set of available time domain scheduling units based on the type of slot indicated by the DCI signaling.
Wherein the time slot types include: downlink time slot, uplink time slot, pre-configured uplink and downlink mixed time slot.
For example, for HARQ feedback operation, the base station configures set length to be 5 through RRC signaling in advance, and bit map to be [0, 1]. Where 0 represents that the time slot is not available and 1 represents that the time slot is available.
The base station configures the 3 rd subframe as a DL subframe through DCI signaling. Since DL slots cannot be used for feedback HARQ ACK/NACK, the user modifies the bit map to [0, 1] based on the set of available time domain scheduling units preconfigured by RRC signaling and the newly received DCI signaling
Case 3:
the base station firstly configures the period of the available time domain scheduling unit set through RRC signaling;
the base station indicates the type of each time slot in the base station period through DCI signaling;
the UE determines or updates the set of available time domain scheduling units based on the type of slot indicated by the DCI signaling.
In this case, the UE determines a transmission timing of predetermined data based on the first signaling and the second signaling.
In some embodiments, for example, uplink data transmission is scheduled by the first signaling, and/or transmission of HARQ feedback information is scheduled by the first signaling, and/or, when downlink data transmission across time domain scheduling units is scheduled by the first signaling, a time domain interval exists between the time domain scheduling unit in which the first signaling is located and the first time domain scheduling unit determined by the first signaling.
As in the LTE FDD system, when uplink data transmission is scheduled by the first signaling, the time-domain interval between the subframe in which the first signaling is located and the subframe of the corresponding UL transmission is 4ms.
In a 5G NR system, multiple services, such as an eMBB service and a URLLC service, are allowed to multiplex the same time-frequency resources. The llc traffic is a low-latency and high-reliability traffic, and usually has the highest transmission priority, i.e. when the llc traffic is generated, the base station must make the llc traffic transmit preferentially by scheduling in time.
In the example shown in figure 11 of the drawings,
the base station decides at time t1 (before slot # 0): the #2 time slot is an uplink time slot;
the base station transmits a first signaling (type: DCI) at a time t2 (in PDCCH of a #0 time slot), and schedules eMBB UE1 to do uplink transmission in the #2 time slot;
the UE1 determines to perform uplink transmission in a #2 time slot according to the first signaling;
the URLLC downlink traffic of UE2 is generated in time t3 (in PDSCH of slot # 0), and in order to transmit preferentially the URLLC traffic of UE2, the base station decides: the #2 slot is modified to be a downlink slot to transmit the URLLC downlink traffic of UE 2.
And receiving the third signaling at the time t 4.
If UE1 continues to transmit uplink data in slot #2, a number of problems are caused, such as:
1) Since the base station has decided to transmit downlink data in the #2 slot and the base station is assumed not to have simultaneous co-channel transceiving capability, the base station cannot correctly receive uplink data transmitted by UE1 in the #2 slot, so that uplink transmission by UE1 in the #2 slot is invalid;
2) On the other hand, in the #2 slot, UE2 receives downlink data (valid data for UE 2) transmitted by the base station and uplink data (interference signal for UE 2) transmitted by UE1 at the same time. If UE2 and UE1 are closely spaced, then in the #2 slot, UE2 may suffer from strong interference from UE1, which may result in failure to correctly receive downlink data transmitted by the base station.
In summary, if UE1 continues to transmit uplink data in slot #2, the uplink data is both invalid and may interfere with the downlink reception of UE2 and thus be detrimental.
An effective solution to the above problem is to prohibit UE1 from transmitting uplink data in slot #2 or, in general, to allow temporary change of the transmission behavior of UE 1. In view of this, the base station transmits third signaling including the attribute of the first time domain scheduling unit in or before the first time domain scheduling unit for transmission corresponding to the determined transmission timing. The first time domain scheduling unit attribute is at least used for determining a transmission direction and/or type of part or all symbols contained in the first time domain scheduling unit.
In one embodiment, the number and/or the position of any one of the uplink transmission symbol, the downlink transmission symbol, the guard interval and the reserved symbol contained in the first time domain scheduling unit may be determined by the attribute of the first time domain scheduling unit carried in the third signaling.
In fig. 11, the attribute of the #2 slot determined by the first signaling is that all symbols are uplink transmission symbols.
And the third signaling sent by the base station carries the attribute of the #2 time slot, which indicates that the attribute of the #2 time slot is that part or all of the symbols are downlink transmission symbols.
Obviously, in the embodiment shown in fig. 11, the attribute of the first time domain scheduling unit (# 2 slot) carried in the third signaling is inconsistent with the attribute of the first time domain scheduling unit (# 2 slot) determined by the first signaling.
In one embodiment, the attribute of the first time domain scheduling unit carried in the third signaling is inconsistent with the attribute of the first time domain scheduling unit determined by the first signaling, and the method further includes: the number and/or the position of any one of the uplink transmission symbol, the downlink transmission symbol, the guard interval and the reserved symbol contained in the first time domain scheduling unit are inconsistent.
The third signaling may be at least one of RRC signaling, MAC layer signaling, and DCI signaling.
In one scenario, the third signaling is DCI signaling, such as slot format indication (SFI: slot format indicator) signaling.
In one scenario, the third signaling bearer is in group common PDCCH and/or in the UE-specific PDCCH.
When the attribute of the first time domain scheduling unit indicated in the third signaling is inconsistent with the attribute of the first time domain scheduling unit determined by the first signaling, the UE changes the transmission behavior determined according to the first signaling in the first time domain scheduling unit.
Wherein the transmission behavior comprises: at least one of receiving PDSCH, transmitting PUSCH, transmitting PUCCH, and transmitting HARQ feedback data.
In the embodiment shown in fig. 11, the transmission behavior determined by the UE according to the first signaling is to transmit PUSCH and/or PUCCH in the #2 slot.
If the attribute of the first time domain scheduling unit indicated by the third signaling is inconsistent with the attribute of the first time domain scheduling unit determined by the first signaling, modifying the transmission behavior determined according to the first signaling in the first time domain scheduling unit, and further comprising one of the following methods:
the transmission behavior determined from the first signaling is modified in a first time domain scheduling unit. Specifically comprising at least one of the following methods:
modifying the transport block size TBS, modifying the modulation coding strategy, modifying the time-frequency resource size and/or location.
The transmission behavior determined according to the first signaling is discarded in the first time domain scheduling unit and in the following time domain scheduling units. In the embodiment shown in fig. 11, when UE1 finds that the first signaling and the third signaling indicate that there is an inconsistency, UE1 gives up to transmit PUSCH and/or PUCCH in slot # 2.
The transmission behavior determined from the first signaling is discarded in a first time domain scheduling unit and the transmission behavior is continued in a second time domain scheduling unit, which follows the first time domain scheduling unit. The method further comprises at least one of the following:
the second time domain scheduling unit is a first time domain scheduling unit after the first time domain scheduling unit in the set of available time domain scheduling units;
The second time domain scheduling unit is a first preconfigured time domain scheduling unit in the set of available time domain scheduling units after the first time domain scheduling unit;
the second time domain scheduling unit is a g1 time domain scheduling unit after the first time domain scheduling unit in the set of available time domain scheduling units; wherein g1 is a certain preset positive integer;
the second time domain scheduling unit is a g2 nd preconfigured time domain scheduling unit after the first time domain scheduling unit in the set of available time domain scheduling units; wherein g2 is a certain preset positive integer.
In some examples, the base station may pre-configure some time domain scheduling unit attributes, such as fixedly configuring some time slots as uplink time slots or downlink time slots. The set of time domain scheduling units for which these attributes are preconfigured is referred to as a predetermined time domain scheduling unit set. While time domain scheduling units outside the set of predetermined time domain scheduling units allow flexible changes of their time domain scheduling unit properties.
The attribute of the time domain scheduling unit includes a transmission direction of part or all of transmission symbols included in the first time domain scheduling unit and/or a type of part or all of transmission symbols.
In an example, the base station indicates the predetermined set of time domain scheduling units through at least one of RRC signaling, MAC signaling, DCI signaling.
In some examples, the property of the time domain scheduling units in the set of predetermined time domain scheduling units is not allowed to change, i.e. the property of the time domain scheduling units in the set of predetermined time domain scheduling units has a higher priority than the property of the set of time domain scheduling units indicated by the third signaling.
Therefore, when the time domain scheduling unit attribute indicated by the third signaling is inconsistent with the corresponding time domain scheduling unit set attribute in the preset time domain scheduling unit set, the terminal ignores the time domain scheduling unit attribute indicated by the third signaling.
Optionally, the terminal ignores the time domain scheduling unit attribute indicated by the third signaling, and there are multiple implementation methods.
In the first embodiment, when the terminal determines that the first time domain scheduling unit belongs to the predetermined time domain scheduling unit set, the terminal does not attempt to receive the third signaling, so as to reduce the signaling blind detection complexity.
In another embodiment, when the terminal receives the third signaling but finds that the time domain scheduling unit indicated by the third signaling belongs to a predetermined set of time domain scheduling units, the terminal ignores the information indicated by the third signaling. When the time domain scheduling unit attribute indicated by the third signaling is inconsistent with the preset attribute of the corresponding time domain scheduling unit in the preset time domain scheduling unit set, the terminal understands according to the preset attribute of the corresponding time domain scheduling unit in the preset time domain scheduling unit set. In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention may be integrated in one processing module, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware associated with program instructions, where the foregoing program may be stored in a computer readable storage medium, and when executed, the program performs steps including the above method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, or the like, which can store program codes.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (23)

1. A transmission timing determining method, applied to a terminal, comprising:
receiving a first signaling sent by a base station;
determining transmission time sequence of preset information or preset data based on the available time domain scheduling unit set according to the receiving parameters and/or carried information of the first signaling;
the set of available time domain scheduling units comprises: one or more time domain scheduling units usable for transmitting the predetermined information or predetermined data;
the determining, according to the receiving parameter and/or the carried information of the first signaling, the transmission timing of the predetermined information or the predetermined data based on the set of available time domain scheduling units includes:
selecting a first time domain scheduling unit with the number not less than n+m in the available time domain scheduling unit set to transmit preset information or preset data; wherein, n is the number of the time domain scheduling unit where the first signaling is located; the m is a first offset, and the m is an integer not less than 0;
Or alternatively, the process may be performed,
selecting a first time domain scheduling unit with a number not smaller than n+m in the available time domain scheduling unit set to transmit second preset information or preset data, wherein n is the number of the time domain scheduling unit where the first preset information or preset data of the first signaling scheduling is located; the m is a first offset; m is an integer not less than 0;
or alternatively, the process may be performed,
selecting an f (k) time domain scheduling unit with the number not less than n+m in the available time domain scheduling unit set to transmit preset information or preset data; wherein k is a timing factor indicated by the first signaling, and f (k) is a second offset determined according to the timing factor k indicated by the first signaling; the n is the number of the time domain scheduling unit where the first signaling is located; the m is a first offset; m is an integer not less than 0;
or alternatively, the process may be performed,
f (k) time domain scheduling units which are in the available time domain scheduling unit set and are not less than n+m in number are selected to transmit second preset information or preset data, wherein k is a timing factor indicated by the first signaling, and f (k) is a second offset determined according to the timing factor k indicated by the first signaling; wherein, n is the number of a time domain scheduling unit where first preset information or preset data of the first signaling scheduling is located; the m is a first offset; and m is an integer not less than 0.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
before the determining the transmission timing of the predetermined information or the predetermined data, the method further includes:
determining the set of available time domain scheduling units by pre-engagement with a base station, wherein the set of available time domain scheduling units comprises: at least one of a set of available time domain scheduling units for HARQ feedback data transmission, a set of available time domain units for uplink data transmission, and a set of available time domain units for downlink data transmission.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
before determining the transmission timing, the method further comprises:
the receiving base station transmits a second signaling at least comprising the set indication information;
determining the set of available time domain scheduling units based on the second signaling, wherein the set of available time domain scheduling units comprises: at least one of a set of available time domain scheduling units for HARQ feedback data transmission, a set of available time domain units for uplink data transmission, and a set of available time domain units for downlink data transmission.
4. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the available time domain scheduling units are as follows: at least one of a subframe, a slot, a minislot, and a transmission symbol.
5. The method according to claim 3 or 4, wherein,
the set of available time domain scheduling units comprises: one or more available time domain scheduling units located in a preset transmission period;
a second signaling for indicating a time domain parameter of the preset transmission period;
the second signaling includes: a bitmap indicating available time domain scheduling units within a preset transmission period; or alternatively, the first and second heat exchangers may be,
the second signaling includes: the unit offset of the available time domain scheduling unit and the bits of the set length of the available time domain scheduling unit set.
6. The method of claim 1, wherein after determining a transmission timing of predetermined information or predetermined data based on a set of available time domain scheduling units and before transmitting data using a first time domain scheduling unit to which the transmission timing corresponds, the method further comprises:
receiving a third signaling; wherein the third signaling is configured to indicate attribute information of the first time domain scheduling unit; the attribute of the first time domain scheduling unit comprises a transmission direction of part or all of transmission symbols included in the first time domain scheduling unit and/or a type of part or all of transmission symbols; when the attribute of the first time domain scheduling unit determined based on the third signaling is inconsistent with the attribute of the first time domain scheduling unit determined based on the first signaling, changing a transmission parameter of a transmission behavior applied to the first time domain scheduling unit;
Wherein the transmission behavior comprises: at least one of receiving Physical Downlink Shared Channel (PDSCH) information, transmitting physical uplink shared information (PUSCH) information, transmitting Physical Uplink Control Channel (PUCCH) information and transmitting HARQ feedback data.
7. The method of claim 6, wherein the step of providing the first layer comprises,
the method further comprises the steps of:
judging whether the first time domain scheduling unit belongs to a preset time domain scheduling unit set or not;
and if the first time domain scheduling unit belongs to a preset time domain scheduling unit set, ignoring the third signaling.
8. The method of claim 6, wherein the step of providing the first layer comprises,
the altering is applied to a transmission parameter of a transmission behavior of the first time domain scheduling unit, including at least one of:
changing a transmission behavior determined according to a first signaling and applied to the first time domain scheduling unit;
discarding transmission behaviors determined according to a first signaling and applied to the first time domain scheduling unit and the first time domain scheduling unit;
and discarding the transmission behavior applied to the first time domain scheduling unit determined according to the first signaling, and continuing the transmission behavior applied to the second time domain scheduling unit determined according to the first signaling, wherein the second time domain scheduling unit is positioned behind the first time domain scheduling unit in the time domain.
9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,
the continuing of the transmission behavior applied to the second time domain scheduling unit, determined according to the first signaling, includes at least one of:
the second time domain scheduling unit is: a first one of the set of available time domain scheduling units located after the first time domain scheduling unit is a time domain scheduling unit consistent with an attribute of the first time domain scheduling unit determined based on the first signaling;
the second time domain scheduling unit is: a first pre-configured time domain scheduling unit located after the first time domain scheduling unit in the set of available time domain scheduling units;
the second time domain scheduling unit is: a (g 1) th time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set is consistent with the attribute of the first time domain scheduling unit determined based on the first signaling; wherein g1 is a preset positive integer;
the second time domain scheduling unit is: a g2 nd preconfigured time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set; wherein g2 is a preset positive integer.
10. The method of claim 6, wherein the step of providing the first layer comprises,
the change is applied to the transmission parameters of the transmission behavior of the first time domain scheduling unit, and at least comprises at least one of the following:
and changing at least one of the size of a transmission block, the coding and modulation strategy, the size of a time-frequency resource and the resource position of the time-frequency resource used by the transmission behavior.
11. A transmission timing indication method, which is applied to a base station, comprising:
transmitting a first signaling to a terminal, wherein the receiving parameter and/or the carried information of the first signaling are used for the terminal to determine the transmission time sequence of preset information or preset data based on an available time domain scheduling unit set; the set of available time domain scheduling units comprises: one or more available time domain scheduling units located for the predetermined information or predetermined data transmission; the determining of the transmission timing of the predetermined information or the predetermined data includes: selecting a first time domain scheduling unit with the number not less than n+m in the available time domain scheduling unit set to transmit preset information or preset data; wherein, n is the number of the time domain scheduling unit where the first signaling is located; the m is a first offset, and the m is an integer not less than 0;
Or alternatively, the process may be performed,
selecting a first time domain scheduling unit with a number not smaller than n+m in the available time domain scheduling unit set to transmit second preset information or preset data, wherein n is the number of the time domain scheduling unit where the first preset information or preset data of the first signaling scheduling is located; the m is a first offset; m is an integer not less than 0;
or alternatively, the process may be performed,
selecting an f (k) time domain scheduling unit with the number not less than n+m in the available time domain scheduling unit set to transmit preset information or preset data; wherein k is a timing factor indicated by the first signaling, and f (k) is a second offset determined according to the timing factor k indicated by the first signaling; the n is the number of the time domain scheduling unit where the first signaling is located; the m is a first offset; m is an integer not less than 0;
or alternatively, the process may be performed,
f (k) time domain scheduling units which are in the available time domain scheduling unit set and are not less than n+m in number are selected to transmit second preset information or preset data, wherein k is a timing factor indicated by the first signaling, and f (k) is a second offset determined according to the timing factor k indicated by the first signaling; wherein, n is the number of a time domain scheduling unit where first preset information or preset data of the first signaling scheduling is located; the m is a first offset; and m is an integer not less than 0.
12. The method of claim 11, wherein the step of determining the position of the probe is performed,
before sending the first signaling, the method further comprises:
transmitting a second signaling to a terminal, wherein the second signaling is used for determining the available time domain scheduling unit set by the terminal; or, the available time domain scheduling unit set is pre-agreed with the terminal; wherein the set of available time domain scheduling units comprises: at least one of a set of available time domain scheduling units for HARQ feedback data transmission, a set of available time domain units for uplink data transmission, and a set of available time domain units for downlink data transmission.
13. The method of claim 12, wherein the step of determining the position of the probe is performed,
the method further comprises the steps of:
determining a first offset based on at least one of a minimum data processing delay of the terminal, a processing capability of the terminal, a processing delay of the base station, a processing capability of the base station, a data transmission delay between the base station and the terminal;
and sending the first offset to the terminal through the second signaling, wherein the first offset and the available time domain scheduling units are commonly used for the terminal to determine the transmission time sequence.
14. The method of claim 13, wherein the step of determining the position of the probe is performed,
the method further comprises the steps of:
receiving the minimum data processing time delay reported by the terminal;
wherein the minimum data processing delay comprises: at least one of a time delay between receiving data transmitted using a Physical Downlink Control Channel (PDCCH) and receiving data transmitted using a Physical Downlink Shared Channel (PDSCH), a time delay between receiving data transmitted using a PDCCH and transmitting data using a PUSCH, and a time delay between receiving data transmitted using a PDSCH and transmitting HARQ feedback data.
15. The method of claim 11, wherein the step of determining the position of the probe is performed,
the first signaling is used for indicating a timing factor k; the k is a dependent variable of a function f (k); and f (k) is a function of calculating a second offset for the terminal.
16. The method according to claim 13 or 14, wherein,
the set of available time domain scheduling units comprises: one or more available time domain scheduling units located in a preset transmission period;
the second signaling is further configured to indicate a time domain parameter of the preset transmission period;
the available time domain scheduling units are as follows: at least one of a subframe, a slot, a minislot, and a transmission symbol.
17. The method according to any one of claims 13 to 15, wherein,
the method further comprises the steps of:
transmitting a third signaling; wherein, the third signaling is configured to indicate attribute information of the first time domain scheduling unit; the attribute of the first time domain scheduling unit comprises a transmission direction of part or all of transmission symbols included in the first time domain scheduling unit and/or a type of part or all of transmission symbols; the third signaling is configured to trigger the terminal to change a transmission parameter of a transmission behavior of the first time domain scheduling unit when the terminal determines that an attribute of the first time domain scheduling unit is inconsistent with an attribute of the first time domain scheduling unit determined based on the first signaling;
wherein the transmission behavior comprises: at least one of receiving Physical Downlink Shared Channel (PDSCH) information, transmitting physical uplink shared information (PUSCH) information, transmitting Physical Uplink Control Channel (PUCCH) information and transmitting HARQ feedback data.
18. The method of claim 17, wherein the step of determining the position of the probe is performed,
the altering is applied to a transmission parameter of a transmission behavior of the first time domain scheduling unit, including at least one of:
Changing a transmission behavior determined according to a first signaling and applied to the first time domain scheduling unit;
discarding transmission behaviors determined according to a first signaling and applied to the first time domain scheduling unit and the first time domain scheduling unit;
and discarding the transmission behavior applied to the first time domain scheduling unit determined according to the first signaling, and continuing the transmission behavior applied to the second time domain scheduling unit according to the first signaling, wherein the second time domain scheduling unit is positioned behind the first time domain scheduling unit in the time domain.
19. The method of claim 18, wherein the step of providing the first information comprises,
the continuing the transmission behavior applied to the second time domain scheduling unit according to the first signaling includes at least one of:
the second time domain scheduling unit is: a first one of the set of available time domain scheduling units located after the first time domain scheduling unit is a time domain scheduling unit consistent with an attribute of the first time domain scheduling unit determined based on the first signaling;
the second time domain scheduling unit is: a first pre-configured time domain scheduling unit located after the first time domain scheduling unit in the set of available time domain scheduling units;
The second time domain scheduling unit is: a (g 1) th time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set is consistent with the attribute of the first time domain scheduling unit determined based on the first signaling; wherein g1 is a preset positive integer;
the second time domain scheduling unit is: a g2 nd preconfigured time domain scheduling unit located after the first time domain scheduling unit in the available time domain scheduling unit set; wherein g2 is a preset positive integer.
20. The method of claim 17, wherein the step of determining the position of the probe is performed,
the change is applied to the transmission parameters of the transmission behavior of the first time domain scheduling unit, and at least comprises at least one of the following:
and changing at least one of the size of a transmission block, the coding and modulation strategy, the size of a time-frequency resource and the resource position of the time-frequency resource used by the transmission behavior.
21. A communication device, comprising:
the first transceiver is used for carrying out information interaction with other communication equipment;
a first processor, coupled to the first transceiver, for implementing the method of any one of claims 1 to 20 by executing a computer program.
22. A communication device, comprising: a second processor and a computer program;
the second processor is configured to implement the method of any one of claims 1 to 20 by executing the computer program.
23. A computer storage medium storing a computer program which, when executed by a processor, is capable of carrying out the method of any one of claims 1 to 20.
CN201710687689.3A 2017-06-16 2017-08-11 Transmission timing determination and indication method, communication device and storage medium Active CN109152053B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2017104584956 2017-06-16
CN201710458495 2017-06-16

Publications (2)

Publication Number Publication Date
CN109152053A CN109152053A (en) 2019-01-04
CN109152053B true CN109152053B (en) 2023-05-09

Family

ID=64803638

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710687689.3A Active CN109152053B (en) 2017-06-16 2017-08-11 Transmission timing determination and indication method, communication device and storage medium

Country Status (1)

Country Link
CN (1) CN109152053B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114337940B (en) * 2019-08-16 2023-11-28 Oppo广东移动通信有限公司 HARQ codebook determination method and device, terminal equipment and network equipment
CN112398617B (en) * 2019-08-16 2023-05-05 中国移动通信有限公司研究院 Configuration method and device
CN113038603A (en) * 2019-12-09 2021-06-25 中兴通讯股份有限公司 Blind detection and descrambling method and device, storage medium and electronic equipment
CN113114431B (en) * 2020-01-13 2023-05-09 中国移动通信有限公司研究院 Information transmission method, network equipment and terminal
CN113472485B (en) * 2020-03-30 2022-12-02 大唐移动通信设备有限公司 HARQ feedback method, terminal and base station
WO2021217483A1 (en) * 2020-04-29 2021-11-04 北京小米移动软件有限公司 Data transmission scheduling method and apparatus, communication device, and storage medium
WO2022147779A1 (en) * 2021-01-08 2022-07-14 捷开通讯(深圳)有限公司 Hybrid automatic repeat request feedback method, communication device and readable storage medium
WO2023279303A1 (en) * 2021-07-07 2023-01-12 Oppo广东移动通信有限公司 Method and apparatus for transmitting uplink feedback information
WO2023050336A1 (en) * 2021-09-30 2023-04-06 Oppo广东移动通信有限公司 Wireless communication method, terminal device, and network device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103684710A (en) * 2012-09-07 2014-03-26 夏普株式会社 Method for sending/receiving HARQ (Hybrid Automatic Repeat Request) messages, base station and user equipment
CN106165330B (en) * 2014-04-04 2019-07-23 诺基亚技术有限公司 Hybrid automatic repeat-request timing in communication
CN106413106B (en) * 2015-07-28 2019-09-17 电信科学技术研究院 A kind of transmission method and device of upstream data
CN106550464B (en) * 2015-09-22 2020-09-25 中国移动通信集团公司 Method, device and system for transmitting uplink control information
CN106559188B (en) * 2015-09-25 2019-11-26 华为技术有限公司 A kind of method of data transmission and base station

Also Published As

Publication number Publication date
CN109152053A (en) 2019-01-04

Similar Documents

Publication Publication Date Title
CN109152053B (en) Transmission timing determination and indication method, communication device and storage medium
US11825484B2 (en) Control channel and data channel transmission/reception method and apparatus for NR system
KR102491572B1 (en) Latency reduction in physical channels of LTE networks
US9756617B2 (en) Simultaneous reporting of ACK/NACK and channel-state information using PUCCH format 3 resources
CN111587605B (en) Uplink channel scheduling for maintaining channel occupancy for unlicensed radio spectrum
EP2947938B1 (en) Control channel for enhanced coverage
US8797985B2 (en) Channel selection and channel-state information collision handling
US11863329B2 (en) Uplink control signaling on PUSCH with shortened transmission time interval (TTI)
US20230300849A1 (en) Control channel and data channel transmission/reception method and apparatus for nr system
JP2019522916A (en) Reference signal triggering and control signaling
EP3485592A1 (en) Systems and methods for processing time reduction signaling
KR20180131556A (en) Method and apparatus for transmitting different power headroom reports based on different transmission time interval lengths
CN111656722B (en) Method and node for control signaling of a radio access network
US20230023719A1 (en) Method and apparatus for configuring default beam for network cooperative communication
US20210100024A1 (en) Method and device for transmitting/receiving uplink control information in wireless communication system
WO2020145357A1 (en) Subslot-based harq-ack timing and pucch resource determination for ultra-low latency pdsch transmission
US20200374085A1 (en) Simultaneous harq-ack and sr transmission on nr pucch
CN111757294A (en) Scheduling method and device of retransmission resources
US20160142188A1 (en) Terminal device, base station device, integrated circuit, and wireless communication method
US10880053B2 (en) Wireless device, a network node and methods therein for handling transmissions in a wireless communications network
CN109691204B (en) Network node, user device and method for a wireless communication system
EP2764649A1 (en) Channel selection and channel-state information collision handling
US20230224824A1 (en) Control information transmission method and device for network cooperative communication of wireless communication system
NZ623748B2 (en) Simultaneous reporting of ack/nack and channel-state information using pucch format 3 resources

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