CN108260221B

CN108260221B - Transmission method, base station and terminal of wireless communication system

Info

Publication number: CN108260221B
Application number: CN201611236604.1A
Authority: CN
Inventors: 柯颋; 胡丽洁; 侯雪颖; 刘建军
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2021-07-30
Anticipated expiration: 2036-12-28
Also published as: CN108260221A

Abstract

The invention provides a transmission method of a wireless communication system, a base station and a terminal. The invention enables the base station to flexibly schedule the uplink transmission of the terminal based on the time domain resource mapping mode by pre-configuring a plurality of time domain resource mapping modes. In addition, the invention can also schedule the discontinuous minimum time domain scheduling unit of the terminal in the time domain scheduling unit to carry out uplink transmission, thereby leading the base station to utilize the downlink transmission opportunity between the discontinuous minimum time domain scheduling units to send a signaling message for adjusting the transmission behavior to the terminal when the transmission behavior of the terminal needs to be changed, and realizing the timely adjustment of the transmission behavior of the terminal.

Description

Transmission method, base station and terminal of wireless communication system

Technical Field

The present invention relates to a wireless communication system, and in particular, to a transmission method, a base station, and a terminal of a wireless communication system.

Background

The 5G New air interface (NR, New Radio) technology supports multiple service application scenarios, including: an Enhanced Mobile Broadband (eMBB) service, an Ultra Reliable and Low Latency (urlclc) service, a Massive Machine Type Communication (mtc) service, and the like.

Different business application scenarios may use different structural parameters (Numerology), such as: subcarrier spacing, OFDM symbol length, CP (Cyclic Prefix) length, RB (Resource Block) size, subframe size, and the like.

The 5G NR technique supports multiple Numerology multiplexing on the same carrier. Fig. 1 is a schematic diagram of eMBB service and urrllc service being carried on the same carrier in a time division multiplexing manner. In fig. 1, each smallest rectangle represents one OFDM symbol. In fig. 1, from an eMBB perspective, an eMBB subframe is divided in the time domain into a plurality of slots (slots), each slot containing an integer number (2 in fig. 1) of OFDM symbols. It is possible for the urrllc traffic to be transmitted on a partial slot of the eMBB subframe.

Note that the uRLLC service is a low-latency and high-reliability service, and compared with the eMBB service, the uRLLC service has a higher priority, that is, when an emergency uRLLC service arrives, the eMBB service may "give way" to the uRLLC service.

As shown in fig. 2, assume that the base station (eNB) originally scheduled terminal 1(UE1) for Uplink (UL) transmission in eMBB subframe n. But the eNB suddenly generates a uRLLC service requirement in subframe n-1, as shown in fig. 3, the eNB decides to temporarily transmit the uRLLC service in the 2 nd slot of the eMBB subframe n, including sending Downlink (DL) data to the UE 2.

However, as shown in fig. 4, if the eNB fails to timely inform the relevant UE (e.g., UE1) to give up UL transmission on a specific time-frequency resource (e.g., slot 2 of subframe n), the UL signal transmitted by UE1 on the time-frequency resource is meaningless (cannot be received by the eNB) and may also interfere with the reception performance of DL data by UE2 on the specific time-frequency resource, because:

1) first, assume that the eNB does not support Co-frequency Co-time Full Duplex (CCFD) capability, i.e., the eNB cannot transmit and receive signals on the same carrier at the same time. Then, the eNB cannot receive the UL signal transmitted by UE1 when transmitting the DL signal to UE2 on the 2 nd slot of subframe n. Therefore, even if UE1 transmits a UL signal on slot 2 of subframe n, eNB1 is unable to receive it. I.e., UL transmission by UE1 on slot 2 of subframe n is meaningless;

2) secondly, if UE1 and UE2 are close to each other, UE2 will simultaneously receive the DL signal transmitted by eNB and the UL signal transmitted by UE1 on the 2 nd slot of subframe n, and therefore the UL signal transmitted by UE1 may deteriorate the reception performance of UE2 on the DL signal transmitted by eNB. In particular, when UE1 is an edge user, the UE1 transmit power may be larger due to the UL power control being performed, and thus the interference to UE2 may be more severe. When the UE2 is an edge user, the UE2 receives the DL signal transmitted by the eNB with a weaker reception power and is therefore more sensitive to surrounding environmental interference.

It can be seen that for the situation where the UL transmission opportunity is temporarily cancelled or adjusted, a transmission mechanism is needed to enable the base station to flexibly schedule the transmission of the terminal to meet the requirement of the 5G flexible frame structure application.

Disclosure of Invention

The technical problem to be solved in the embodiments of the present invention is to provide a transmission method, a base station, and a terminal for a wireless communication system, so that the base station can flexibly schedule transmission of the terminal.

To solve the foregoing technical problem, a transmission method for a wireless communication system according to an embodiment of the present invention includes: a base station is configured with a plurality of time domain resource mapping modes in advance, wherein each time domain resource mapping mode comprises at least one minimum time domain scheduling unit for uplink transmission;

and the base station scheduling terminal uses at least one time domain resource mapping mode to carry out uplink transmission.

Another transmission method of a wireless communication system provided in an embodiment of the present invention is applied to a terminal side, and includes:

a terminal receives an uplink authorization message sent by a base station, wherein the uplink authorization message is used for scheduling the terminal to use at least one time domain resource mapping mode for uplink transmission, and each time domain resource mapping mode comprises at least one minimum time domain scheduling unit for uplink transmission;

and the terminal carries out uplink transmission according to the uplink authorization message.

An embodiment of the present invention further provides a base station, including:

the system comprises a mode configuration unit and a scheduling unit, wherein the mode configuration unit is used for configuring a plurality of time domain resource mapping modes in advance, and each time domain resource mapping mode comprises at least one minimum time domain scheduling unit for performing uplink transmission;

and the transmission scheduling unit is used for scheduling the terminal to use at least one time domain resource mapping mode to carry out uplink transmission.

An embodiment of the present invention further provides a terminal, including:

a first receiving unit, configured to receive an uplink grant message sent by a base station, where the uplink grant message is used to schedule a terminal to perform uplink transmission using at least one time domain resource mapping mode, and each time domain resource mapping mode includes at least one minimum time domain scheduling unit for performing uplink transmission;

and the uplink transmission unit is used for carrying out uplink transmission according to the uplink authorization message.

Compared with the prior art, the transmission method, the base station and the terminal of the wireless communication system provided by the embodiment of the invention have the advantages that the base station can flexibly schedule the uplink transmission of the terminal based on the time domain resource mapping mode by pre-configuring various time domain resource mapping modes. In addition, the embodiment of the invention can also schedule the terminal to perform uplink transmission in the discontinuous minimum time domain scheduling unit in the time domain scheduling unit, so that the base station can utilize the downlink transmission opportunity between the discontinuous minimum time domain scheduling units to send the signaling message for adjusting the transmission behavior to the terminal when the transmission behavior of the terminal needs to be changed, thereby realizing the timely adjustment of the transmission behavior of the terminal.

Drawings

FIG. 1 shows a diagram of a number of Numeriology multiplexing schemes of the prior art;

fig. 2 illustrates a scenario of a prior art base station scheduling transmission of an eMBB subframe;

FIG. 3 is a diagram illustrating a prior art scenario in which a base station schedules a uRLLC subframe for preferential transmission;

fig. 4 is a diagram illustrating inter-UE interference in the prior art;

fig. 5A to 5B are schematic structural diagrams of an uplink subframe and a special subframe in an LTE system;

FIG. 6 is a diagram of a minimum time domain scheduling unit in a 5G NR system;

FIG. 7 is a diagram illustrating a time domain structure of a minimum time domain scheduling unit in a 5G NR system;

fig. 8 is a schematic flowchart of a transmission method applied to a base station side according to an embodiment of the present invention;

fig. 9 is an example of a time domain resource mapping pattern provided by an embodiment of the present invention;

fig. 10 is an example of a two-stage time domain resource mapping mode according to an embodiment of the present invention;

fig. 11 is an example of an uplink burst list and uplink burst parameters according to an embodiment of the present invention;

fig. 12 is another example of an uplink burst list and uplink burst parameters according to an embodiment of the present invention;

fig. 13 is a further example of an uplink burst list and an uplink burst parameter according to an embodiment of the present invention;

fig. 14 is a further example of an uplink burst list and uplink burst parameters according to an embodiment of the present invention;

fig. 15 is another example of a time domain resource mapping mode provided by the embodiment of the present invention;

fig. 16 is a flowchart illustrating a transmission method applied to a terminal side according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of a terminal according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention. In addition, the terms "system" and "network" are often used interchangeably herein. It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

In the embodiment of the present invention, the Base Station may be a Macro Base Station (Macro Base Station), a micro Base Station (Pico Base Station), a Node B (3G mobile Station), an enhanced Base Station (eNB), a gNB (5G Base Station), a Home enhanced Base Station (Femto eNB or Home eNode B or Home eNB or HeNB), a relay Station, an access point, a Remote Radio Unit (RRU), an RRH (Remote Radio Head ), and the like. The terminal may be a mobile phone (or handset), or other device capable of sending or receiving wireless signals, including a User Equipment (UE), a Personal Digital Assistant (PDA), a wireless modem, a wireless communicator, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE (Customer Premise Equipment) or mobile smart hotspot capable of converting mobile signals to WiFi signals, a smart appliance, or other device capable of autonomously communicating with a mobile communication network without human operation, etc.

The following first presents related concepts involved in embodiments of the present invention.

A Minimum Time-Domain Scheduling Unit (MTSU) is a Minimum Scheduling granularity of a base station in the Time Domain. For example, the minimum time domain scheduling unit that may be adopted in the embodiment of the present invention may be a subframe in an LTE system, and may also be the minimum scheduling granularity defined in a 5G NR system. Specifically, the minimum time domain scheduling unit is any one of a subframe, a slot (slot), a mini-slot, and an OFDM symbol.

In the LTE system, a subframe is a minimum time domain scheduling unit. In particular, the minimum time domain scheduling unit available for UL transmission includes a UL subframe (Uplink subframe) and a Special subframe (Special subframe) as shown in fig. 5A to 5B.

As shown in fig. 6, in the 5G NR technique, a subframe, a slot (slot), a mini-slot (mini-slot), or an OFDM symbol may be used as a minimum time domain scheduling unit. Wherein 1 subframe contains X OFDM symbols (e.g., X-14), and 1 slot contains Y OFDM symbols (e.g., Y-7 or 14), and 1 mini-slot contains Z OFDM symbols (Z ≦ Y). And each minimum time domain scheduling unit comprises one or more of DL data, UL data, DL control, UL control, and guard interval (GP), and has various possible time domain structures, which are shown in fig. 7. Here, the DL data included in the minimum time domain scheduling unit is to mean that the minimum time domain scheduling unit includes resources for transmitting DL data, and similarly, for UL data, DL control, UL control, and GP. It should be noted that fig. 7 is only a few schematic diagrams of the time domain structure, and does not represent an exhaustive list of all possibilities. The time domain structure actually employed may be a subset of fig. 7, or some structure not included in fig. 7. Herein, the minimum time domain scheduling unit for performing uplink transmission includes a resource used for uplink transmission, and specifically, may be all or part of the resource of the minimum time domain scheduling unit.

The time domain scheduling unit refers to a resource of which the time domain length is greater than or equal to the minimum time domain scheduling unit. Specifically, the time domain scheduling unit may be any one of a subframe, a time domain resource with a length of 1ms, a slot (slot), a mini-slot (slot), and a slot group (slot group) composed of at least one slot. Hereinafter, the uplink time domain scheduling unit for uplink transmission will be mainly described.

Referring to fig. 8, a scheduling method of a wireless communication system according to an embodiment of the present invention, when applied to a base station, includes:

step 801, a base station configures multiple time domain resource mapping modes in advance, wherein each time domain resource mapping mode includes at least one minimum time domain scheduling unit for performing uplink transmission.

In the embodiment of the present invention, the time domain resource mapping mode refers to a mode of a minimum time domain scheduling unit for performing uplink transmission, and each time domain resource mapping mode defines one or more minimum time domain scheduling units for performing uplink transmission.

Step 802, the base station schedules the terminal to use at least one time domain resource mapping mode to perform uplink transmission.

Here, when the base station needs to schedule the terminal for uplink transmission, at least one time domain resource mapping mode used by the terminal is determined according to multiple pre-configured time domain resource mapping modes, and the terminal is scheduled to use the at least one time domain resource mapping mode for uplink transmission.

Through the steps, the base station can flexibly schedule the transmission of the terminal by taking the minimum time domain scheduling unit as a unit.

In the embodiment of the present invention, the time domain resource mapping mode is used to indicate one or more minimum time domain scheduling units for performing uplink transmission. When there are multiple minimum time domain scheduling units for uplink transmission, the multiple minimum time domain scheduling units may be consecutive or non-consecutive minimum time domain scheduling units in the time domain.

For example, the time domain resource mapping pattern may correspond to a time domain scheduling unit (e.g., a subframe), that is, a pattern of a minimum time domain scheduling unit for performing uplink transmission in a time domain scheduling unit. The time domain resource mapping mode may also correspond to an uplink burst list composed of at least one uplink burst, where the uplink burst includes one or more continuous minimum time domain scheduling units for uplink transmission, and the uplink burst list may be composed of a plurality of uplink bursts that occur periodically.

When the time domain resource mapping pattern corresponds to a time domain scheduling unit, before step 802, the base station and the terminal may establish a first mapping relationship between a pattern index of the time domain resource mapping pattern and a minimum time domain scheduling unit list based on the same configuration (e.g., standard predefined or preconfigured); or, the base station determines a first mapping relationship between a mode index of the time domain resource mapping mode and the minimum time domain scheduling unit list, and configures the first mapping relationship to the terminal through at least one of a system message indication and an RRC signaling indication. Here, the minimum time domain scheduling unit list is a list composed of minimum time domain scheduling units for performing uplink transmission included in the time domain resource mapping mode. Thus, when scheduling transmission in step 802, the base station may instruct the terminal to perform uplink transmission using the corresponding time domain resource mapping mode by sending the mode index of the corresponding time domain resource mapping mode to the terminal.

The base station establishes the first mapping relationship based on the same configuration between the base station and the terminal, and specifically, the first mapping relationship may be defined in a relevant standard protocol, so that the base station and the terminal may establish the first mapping relationship locally through pre-configuration. In the first mapping relationship, each mode index corresponds to a minimum time domain scheduling unit list.

For example, please refer to fig. 9, in this example, a subframe is used as the time domain scheduling unit, it is not assumed that 1 subframe includes 14 OFDM symbols, and each minimum time domain scheduling unit includes 2 OFDM symbols. In fig. 9, a subframe includes a total of 14 OFDM symbols numbered from 0 to 13, and the minimum time domain scheduling unit includes 2 OFDM symbols. Fig. 9 shows 6 time domain resource mapping modes, which are time domain resource mapping modes 1-6, respectively, where time domain resource mapping mode 1 includes minimum time

domain scheduling units

0, 3, and 6; the time domain resource mapping mode 2 comprises minimum time

domain scheduling units

1 and 4; the time domain resource mapping mode 3 comprises minimum time

domain scheduling units

2 and 5; the time domain resource mapping mode 4 comprises minimum time

domain scheduling units

0,1 and 2; the time domain resource mapping mode 5 comprises minimum time

domain scheduling units

3, 4 and 5; the time domain resource mapping pattern 6 includes minimum time

domain scheduling units

0,1, 3 and 4.

As an implementation manner, in the first mapping relationship, the minimum time domain scheduling unit list may use the minimum time domain scheduling unit as a unit, and then the first mapping relationship table shown in fig. 9 may be represented as table 1 below.

TABLE 1

As an implementation manner, in the first mapping relationship, the minimum time domain scheduling unit list may use OFDM as a unit, and the first mapping relationship table shown in fig. 9 may be represented as the following table 2, where each minimum time domain scheduling unit in the minimum time domain scheduling unit list is represented by a number of corresponding OFDM.

TABLE 2

When the scheduling terminal uses a certain/certain time domain resource mapping mode to perform uplink transmission, the base station can directly indicate a mode index of the certain/certain time domain resource mapping mode. Since a large number of time domain resource mapping modes may be defined, the number of mode indexes may be large, and a large field may be occupied if the number of the mode indexes is directly used for indication. Considering that the terminal may only adopt a partial time domain resource mapping mode, the embodiment of the present invention further performs mode indication by a two-stage mapping manner, so as to reduce the number of bits required by the mode indication field.

At this time, the base station and the terminal may establish a second mapping relationship between the mode index of the time domain resource mapping mode in the first-stage mode set and the minimum time domain scheduling unit list based on the same configuration between the two sides, where the minimum time domain scheduling unit list is a list of minimum time domain scheduling units included in the time domain resource mapping mode for performing uplink transmission, and the first-stage mode set may include all possible time domain resource mapping modes or only a part of the total set. Then, selecting a part of time domain resource mapping modes from the first-stage mode set to form a second-stage mode set, and establishing a third mapping relation between a first-stage mode index of the time domain resource mapping modes in the first-stage mode set and a second-stage mode index of the time domain resource mapping modes in the second-stage mode set. Then, the base station configures the third mapping relationship to the terminal through at least one message of a system message indication and an RRC signaling indication. And the terminal can restore a minimum time domain scheduling unit list corresponding to each mode index in the third mapping relation table according to the third mapping relation table and the first mapping relation table configured locally. In this way, when the subsequent base station performs scheduling, only the number of the second-level mode index needs to be sent, so as to reduce the number of bits required by the mode indication.

Specifically, the second mapping relationship may be specified in the relevant standard protocol (a large table, which is referred to as a first-level schema index for the schema index); the base station cuts the second mapping relation (large table) according to the needs, screens out a third mapping relation (small table, and the mode index corresponding to the small table is called as a second-level mode index), and establishes a third mapping relation between the first-level mode index and the second-level mode index; and the base station configures the third mapping relation to the terminal through system information and/or RRC signaling. Fig. 10 is a schematic diagram of the third mapping relationship obtained by cutting the third mapping relationship with respect to fig. 9, so as to establish the third mapping relationship as shown in table 3 below.

TABLE 3

In step 802, when the base station schedules the terminal to perform uplink transmission using at least one of the time domain resource mapping modes, the method may specifically include:

and the base station sends an uplink authorization message to the terminal, wherein the uplink authorization message carries information of at least one scheduled uplink time domain scheduling unit and first indication information of the time domain resource mapping mode. Wherein,

1) when the scheduled at least one uplink time domain scheduling unit is a single uplink time domain scheduling unit, the first indication information is a mode index of a time domain resource mapping mode adopted in the single uplink time domain scheduling unit.

2) When the scheduled at least one uplink time domain scheduling unit is a plurality of uplink time domain scheduling units, the first indication information is: the uplink time domain scheduling units may use the same time domain resource mapping mode (that is, the scheduled uplink time domain scheduling units all use the same time domain resource mapping mode), or may use the same, not the same, or different time domain resource mapping modes.

The time domain resource mapping mode may be the mode index in the first mapping relation table or the second level mode index.

As described above, in the embodiment of the present invention, the time domain resource mapping pattern may further correspond to an uplink burst list composed of at least one uplink burst. At this time, the time domain resource mapping mode may be represented by an uplink burst parameter, specifically, the uplink burst parameter includes at least one of the following parameters: offset of the uplink burst relative to a predetermined starting position, period T of the uplink burst, number n of consecutive minimum time domain scheduling units included in the uplink burst, and a sequence number list { k } composed of sequence numbers of the uplink burst used in uplink transmission in the uplink burst list. The uplink burst comprises one or more continuous minimum time domain scheduling units for uplink transmission, so that the minimum time domain scheduling unit for uplink transmission corresponding to the uplink burst list can be determined according to the uplink burst parameters.

As shown in fig. 11, the minimum time domain scheduling unit sequence corresponding to the uplink burst list can be uniquely determined by at most 3+ K parameters, which include: the method comprises the steps of aiming at the offset (offset) of a preset starting position, the period (T) of an uplink burst, the number (n) of continuous minimum time domain scheduling units contained in each uplink burst (UL burst), and a sequence number list { K } of the UL burst adopted in the current uplink transmission, wherein K is more than or equal to 0 and less than or equal to K-1. K here is the maximum number of UL bursts to be used for uplink transmission. In fig. 11, 1 subframe includes 14 OFDM symbols, and each minimum time domain scheduling unit includes 2 OFDM symbols; the predetermined starting position is the starting position of a certain subframe, offset is 2 OFDM symbols, T is 6 OFDM symbols, and n is 2 minimum time domain scheduling units (or 4 OFDM symbols), part of the crossed uplink bursts represent uplink bursts that are not adopted in the current uplink transmission in the periodic uplink bursts, and the crossed uplink bursts represent uplink bursts that are adopted in the current uplink transmission in the periodic uplink bursts. The same reference numerals in FIGS. 12 to 14 have the same meanings.

It can be seen that, when the time domain resource mapping mode corresponds to the uplink burst list, a function mapping relationship between the minimum time domain scheduling unit sequence and the uplink burst parameter can be established through the uplink burst parameter/predetermined rule, and the corresponding minimum time domain scheduling unit sequence can be determined through a mathematical function by using the uplink burst parameter.

When the time domain resource mapping mode corresponds to the uplink burst list, and when scheduling is performed in step 802, the base station may send an uplink grant message carrying at least one piece of scheduled uplink time domain scheduling unit information to the terminal, where the uplink grant message further carries one or more parameters of the uplink burst parameters, where the one or more parameters at least include an offset of the uplink burst with respect to a predetermined starting position. In addition, in practical applications, in order to reduce signaling overhead between the base station and the terminal during scheduling, some of the parameters or rules may be predetermined in advance by at least one of a method specified by a standard protocol, a system message, and RRC signaling. How to perform synchronization/interaction of the uplink burst parameter between the base station and the terminal is described below.

1) The number n of consecutive minimum time domain scheduling units included in the uplink burst may be a pre-defined value between the base station and the terminal, and at this time, the base station may not notify the terminal of the number of values. The number may also be a first default value within a first preset time period, which is indicated to the terminal by the base station through a system message, and the first default value is configured to be valid within the first preset time period. The number may also be a first designated value set by the base station for the terminal through RRC signaling, or a value carried in a corresponding number field in the uplink grant message.

Specifically, the value of n may be directly defined in the relevant standard protocol (for example, n is 1), or the base station sends a system message, and a default value of n in a specific time period is given in the system message, or the base station sends a value of n of the terminal by sending an RRC signaling for a specific terminal, or the base station carries a number field in an uplink grant message (UL grant) sent to the terminal, and the value of the number field is the value of n.

2) The period T of the uplink burst may be a second default value within a second preset time period, which is indicated by the base station through a system message, and the second default value is configured to be valid within the second preset time period. The period may also be a second specified value set by the base station for the terminal through RRC signaling, or a value carried in a corresponding period field in the uplink grant message.

3) The offset of the uplink burst from the predetermined starting position is expressed by using a minimum time domain scheduling unit as a unit, or when the offset is an integer multiple of the number of consecutive minimum time domain scheduling units included in the uplink burst, the value of the offset is expressed by using the ratio of the offset to the number.

Specifically, the base station may include an offset field in an uplink grant message (UL grant), where the offset may be in units of a minimum time domain scheduling unit; alternatively, the uplink grant message (UL grant) includes an offset2 field, and offset2 is offset/n. The latter field representation can reduce the number of bits required for the field.

Specifically, the predetermined starting position may be a starting position of a downlink time domain scheduling unit carrying an uplink grant message. The predetermined starting position may also be the starting position of each scheduled uplink time domain scheduling unit, and at this time, if a plurality of uplink time domain scheduling units are scheduled during the current transmission, it is necessary that the offsets of the first uplink burst in each uplink time domain scheduling unit and the starting position of the uplink time domain scheduling unit are all the same. The predetermined starting position may also be the starting position of the first scheduled uplink time domain scheduling unit during the current transmission, and at this time, if a plurality of uplink time domain scheduling units are scheduled during the current transmission, the offset between the first uplink burst in each uplink time domain scheduling unit and the starting position of the uplink time domain scheduling unit may be different.

Fig. 12 and fig. 13 are schematic diagrams of different predetermined starting positions, where the predetermined starting position in fig. 12 is a starting position of a downlink time domain scheduling unit carrying an uplink grant message or a starting position of a first scheduled uplink time domain scheduling unit. The predetermined starting position in fig. 13 is the starting position of each scheduled uplink time domain scheduling unit, and at this time, in each uplink time domain scheduling unit, the offset between the first uplink burst and the starting position of the uplink time domain scheduling unit is 1 minimum time domain scheduling unit.

4) The sequence number list { k } composed of the sequence numbers in the uplink burst list used in uplink transmission may be indicated by the corresponding burst list field in the uplink grant message, and at this time, the base station needs to send a message to the terminal to indicate the sequence number list.

In the embodiment of the invention, the base station and the terminal determine the sequence number list { k } through a preset rule, so that the base station does not need to explicitly inform the terminal of the sequence number list { k } in a signaling, and at the moment, the uplink burst parameter comprises three parameters of offset, n and T. Here, the predetermined rule may include: the whole uplink burst falls into a scheduled uplink time domain scheduling unit; or, the whole or part of the uplink burst falls into the scheduled uplink time domain scheduling unit.

Fig. 12 shows one implementation of determining the list of sequence numbers k based on uplink bursts falling wholly or partially into the scheduled uplink time domain scheduling unit. Wherein, the base station and the terminal appoint to use the data with { k }_0≤k<∞The part of the uplink burst sequence with infinite length, which is described to fall in the scheduled uplink time domain scheduling unit (such as UL subframe), is used for UL transmission. As shown in fig. 12, the base station (eNB) is not configured to schedule the terminal (UE) to perform UL transmission on subframe n and subframe n + 2. The terminal finds, through calculation, that the full UL burst corresponding to k ═ 0,1,5,6} and the second half UL burst of k ═ 4 fall in the scheduled UL subframe, so the UE uses the full or partial UL burst for UL transmission, i.e. uses the full UL burst corresponding to k ═ 0,1,5,6} and the second half UL burst of k ═ 4 for UL transmission. At this time, the eNB does not need to explicitly indicate the sequence k to the terminal.

Fig. 13 shows one implementation of determining the sequence number list { k } from the uplink bursts that fall entirely into the scheduled uplink time domain scheduling unit. Wherein the base station and the terminal agree to use a code of { k }_0≤k<∞The part of the uplink burst of the delineated infinite length UL burst sequence completely falling in the scheduled UL subframe is used for UL transmission. Here, the complete UL burst corresponding to k ═ {0,1,5,6} is used for UL transmission. At this time, the eNB does not need to explicitly indicate the sequence k to the terminal.

Fig. 14 is similar to fig. 12, except that the UE is restricted to UL transmission in a full UL burst. Here, the complete UL burst corresponding to k ═ {0,1,5,6} is used for UL transmission. Likewise, the eNB does not need to explicitly indicate the sequence k.

Fig. 15 is an example of representing a time domain resource mapping mode by using an uplink burst parameter, where a time domain scheduling unit is a subframe, a subframe length is 6 minimum time domain scheduling units, and each configured offset is an integer multiple of n. Therefore, to reduce the number of bits required to indicate offset, offset information can be indicated in the UL grant with offset2, and offset2 is offset/n. Based on the above description, the uplink burst parameter corresponding to the time domain resource mapping mode in fig. 15 can be shown in table 4 below:

TABLE 4

As an implementation manner, for scheduling of a single UL time domain scheduling unit and/or multiple UL time domain scheduling units, a UL grant includes at least one set of fields of uplink burst parameters, where each set of uplink burst parameters at least includes: offset or offset2, and the reference starting position corresponding to offset or offset2 is any one of the starting transmission position boundary of DL time-domain scheduling unit carrying UL grant signaling, the starting transmission position boundary of each UL scheduled time-domain scheduling unit, and the starting transmission position boundary of the first UL scheduled time-domain scheduling unit.

In addition, in the method of the embodiment of the present invention, before the scheduling terminal uses at least one time domain resource mapping mode to perform uplink transmission in step 802, the base station may also allocate a discontinuous minimum time domain scheduling unit for uplink transmission to the terminal, so as to obtain an uplink scheduling resource of the terminal; then, the base station determines at least one time domain resource mapping mode corresponding to the uplink scheduling resource according to the uplink scheduling resource of the terminal. Through the processing, the discontinuous uplink minimum time domain scheduling unit can be allocated to the terminal, so that the base station can send the indication information for adjusting the transmission behavior to the terminal through the downlink transmission opportunity among the discontinuous minimum time domain scheduling units.

Specifically, after determining at least one time domain resource mapping mode corresponding to the uplink scheduling resource, in step 802, the base station sends, to the terminal, a first downlink control information DCI signaling for scheduling the terminal to perform uplink transmission using the at least one time domain resource mapping mode. And when the base station determines to adjust the transmission behavior of any minimum time domain scheduling unit in the at least one time domain resource mapping mode, sending a second DCI signaling for adjusting the transmission behavior of the terminal in any minimum time domain scheduling unit to the terminal within a first time window located before the minimum time domain scheduling unit, where the first time window has a first preset length. In this way, the terminal may detect the second DCI signaling within the corresponding first time window, and further adjust the transmission behavior in the corresponding minimum time domain scheduling unit according to the detected second DCI signaling.

For example, taking fig. 2 as an example for explanation, assume a slot in each eMBB subframe in fig. 2 as a minimum time domain scheduling unit. The eNB schedules the UE to do UL transmission on at least one minimum time domain scheduling unit starting from the subframe n through first DCI signaling in the subframe n-k 1; the eNB may send a second DCI signaling within a T1 time window before each minimum time domain scheduling unit scheduled for UL transmission to adjust the UE UL transmission behavior indicated by the first DCI signaling (e.g., eMBB indicates that the 2 nd slot of the subframe n is changed from eMBB traffic to urrllc traffic in subframe n-1);

and the UE receives the first DCI signaling and determines to perform UL transmission on at least one minimum time domain scheduling unit. The UE attempts to receive the second DCI signaling within a T1 time window before each scheduled minimum time domain scheduling unit. If the second DCI signaling is not received, the UE carries out UL transmission according to the first DCI indication; otherwise, UL transmission is performed according to the second DCI signaling indication (if the UE1 finds that the 2 nd slot of the subframe n in the subframe n-1 is changed from the eMBB service to the urrllc service, the UE1 decides to abandon transmitting UL data in the 2 nd slot of the subframe n).

Therefore, the embodiment of the invention can enable the base station to schedule the terminal to carry out discontinuous transmission in the time domain scheduling unit.

Corresponding to the transmission method of the base station side, an embodiment of the present invention further provides a transmission method of a wireless communication system, which is applied to a terminal side, and as shown in fig. 16, the transmission method includes:

step 1601, a terminal receives an uplink grant message sent by a base station, where the uplink grant message is used to schedule the terminal to perform uplink transmission using at least one time domain resource mapping mode, and each time domain resource mapping mode includes at least one minimum time domain scheduling unit for performing uplink transmission.

And step 1602, the terminal performs uplink transmission according to the uplink authorization message.

Similarly, the time domain resource mapping pattern may correspond to one time domain scheduling unit; the uplink grant message carries information of at least one scheduled uplink time domain scheduling unit and first indication information of the time domain resource mapping mode, wherein,

when at least one scheduled uplink time domain scheduling unit is a single uplink time domain scheduling unit, the first indication information is a mode index of a time domain resource mapping mode adopted in the single uplink time domain scheduling unit;

when the scheduled at least one uplink time domain scheduling unit is a plurality of uplink time domain scheduling units, the first indication information is: a mode index indicating the same time domain resource mapping mode adopted by the plurality of uplink time domain scheduling units, or a list of mode indexes indicating the time domain resource mapping modes adopted by the plurality of uplink time domain scheduling units respectively.

As an implementation manner, before step 1601, the terminal may establish a first mapping relationship between a mode index of the time domain resource mapping mode and the minimum time domain scheduling unit list based on the same configuration between the terminal and the base station, or the terminal determines configuration information for the first mapping relationship sent by the base station by receiving at least one of a system message and an RRC signaling indication, and locally stores the first mapping relationship. Here, the minimum time domain scheduling unit list is a list of minimum time domain scheduling units for performing uplink transmission included in the time domain resource mapping mode. In the above step 1602, the performing, by the terminal, uplink transmission according to the uplink grant message may include: and the terminal determines a minimum time domain scheduling unit list corresponding to the mode index in the first indication information according to the first mapping relation, and performs uplink transmission on the minimum time domain scheduling unit in the determined minimum time domain scheduling unit list.

As another implementation manner, before step 1601, the terminal may receive, through at least one of a system message and an RRC signaling indication, configuration information for a third mapping relationship sent by the base station, and locally store the third mapping relationship, where the third mapping relationship is a mapping relationship between a first level mode index of a time domain resource mapping mode in a first level mode set and a second level mode index of a time domain resource mapping mode in a second level mode set, and the second level mode set is a set formed by partial time domain resource mapping modes selected from the first level mode set. In the above step 1602, the performing, by the terminal, uplink transmission according to the uplink grant message may include: and the terminal determines a minimum time domain scheduling unit list corresponding to the mode index in the first indication information according to a second mapping relation and a third mapping relation, and performs uplink transmission on the minimum time domain scheduling unit in the determined minimum time domain scheduling unit list, wherein the second mapping relation is a mapping relation between the mode index of the time domain resource mapping mode in the first-level mode set and the minimum time domain scheduling unit list, which is established by the station and the terminal based on the same configuration.

In the embodiment of the present invention, the minimum time domain scheduling unit list is represented by the number of each minimum time domain scheduling unit in the time domain scheduling unit, or by the number of the OFDM symbol of each minimum time domain scheduling unit in the time domain scheduling unit.

When the time domain resource mapping mode corresponds to an uplink burst list composed of at least one uplink burst, the uplink burst includes one or more continuous minimum time domain scheduling units for uplink transmission, the time domain resource mapping mode is represented by uplink burst parameters, and the uplink burst parameters include at least one of the following parameters: the offset of the uplink burst relative to a predetermined starting position, the period of the uplink burst, the number of continuous minimum time domain scheduling units included in the uplink burst, and a sequence number list consisting of sequence numbers of the uplink burst used in uplink transmission in the uplink burst list. At this time, in step 1601, the uplink grant message carries information of at least one uplink time domain scheduling unit that is scheduled, where the uplink burst parameter includes at least an offset of the uplink burst with respect to a predetermined starting position.

Here, the uplink burst parameter may be determined in any one of the following manners:

the number of the continuous minimum time domain scheduling units included in the uplink burst is a pre-defined value between the base station and the terminal, or the terminal determines a value which is sent by the base station and aims at the number of the continuous minimum time domain scheduling units included in the uplink burst by receiving at least one of a system message, an RRC signaling indication and an uplink authorization message;

the period of the uplink burst is a second default value indicated by the base station through the system message within a preset time period, or the terminal determines the value of the period of the uplink burst sent by the base station through receiving at least one of the system message, the RRC signaling indication and the uplink authorization message;

the terminal determines a sequence number list consisting of sequence numbers of uplink bursts used in uplink transmission in an uplink burst list by receiving a burst list field indication in an uplink authorization message;

the terminal determines the sequence number list composed of the sequence numbers of the uplink burst used in uplink transmission in the uplink burst list through a predetermined rule, wherein the predetermined rule comprises: the whole uplink burst falls into a scheduled uplink time domain scheduling unit; or, the whole or part of the uplink burst falls into the scheduled uplink time domain scheduling unit.

In this embodiment of the present invention, the predetermined starting position is either a starting position of a downlink time domain scheduling unit carrying an uplink grant message, or a starting position of each scheduled uplink time domain scheduling unit, or a starting position of a first scheduled uplink time domain scheduling unit.

In this embodiment of the present invention, the offset of the uplink burst with respect to the predetermined starting position may be represented by using a minimum time domain scheduling unit as a unit, or, when the offset is an integer multiple of the number of consecutive minimum time domain scheduling units included in the uplink burst, a value of the offset is represented by using a ratio of the offset to the number.

In this embodiment of the present invention, the step 1601 specifically includes: and the terminal receives a first Downlink Control Information (DCI) signaling which is sent by the base station and used for scheduling the terminal to use at least one time domain resource mapping mode for uplink transmission, wherein the at least one time domain resource mapping mode corresponds to a group of discontinuous minimum time domain scheduling units.

The step 1602 may specifically include: the terminal detects whether a second DCI signaling which is sent by the base station and used for adjusting the transmission behavior of the terminal in any minimum time domain scheduling unit is received in a first time window which is positioned in front of any minimum time domain scheduling unit, wherein the first time window has a first preset length, and any minimum time domain scheduling unit is the minimum time domain scheduling unit in the group of discontinuous minimum time domain scheduling units;

if the second DCI signaling is detected, adjusting the transmission behavior of any minimum time domain scheduling unit according to the second DCI signaling;

and if the second DCI signaling is not detected, performing uplink transmission on any minimum time domain scheduling unit according to the first DCI signaling.

Finally, the embodiment of the invention also provides equipment for implementing the method.

Referring to fig. 17, an embodiment of the present invention provides a base station, including:

a mode configuration unit 1701, configured to pre-configure multiple time domain resource mapping modes, where each time domain resource mapping mode includes at least one minimum time domain scheduling unit for performing uplink transmission;

a scheduling unit 1702, configured to schedule the terminal to perform uplink transmission using at least one of the time domain resource mapping modes.

Optionally, the time domain resource mapping mode corresponds to a time domain scheduling unit; the transmission scheduling unit includes:

a first sending unit, configured to send an uplink grant message to the terminal, where the uplink grant message carries information of at least one scheduled uplink time domain scheduling unit and first indication information of the time domain resource mapping mode, and the uplink grant message includes information of the at least one scheduled uplink time domain scheduling unit and the first indication information of the time domain resource mapping mode,

Here, as an implementation manner, the base station further includes:

the first mapping unit is used for establishing a first mapping relation between a mode index of the time domain resource mapping mode and a minimum time domain scheduling unit list based on the same configuration of a base station and a terminal; or, determining a first mapping relationship between a mode index of the time domain resource mapping mode and a minimum time domain scheduling unit list, and configuring the first mapping relationship to a terminal through at least one of a system message indication and an RRC signaling indication, where the minimum time domain scheduling unit list is a list of minimum time domain scheduling units included in the time domain resource mapping mode and performing uplink transmission.

Here, as another implementation manner, the base station further includes:

a second mapping unit, configured to establish a second mapping relationship between a mode index of a time domain resource mapping mode in a first-level mode set and a minimum time domain scheduling unit list based on the same configuration between a base station and a terminal, where the minimum time domain scheduling unit list is a list of minimum time domain scheduling units included in the time domain resource mapping mode and performing uplink transmission; selecting a part of time domain resource mapping modes from the first-stage mode set to form a second-stage mode set, and establishing a third mapping relation between a first-stage mode index of the time domain resource mapping modes in the first-stage mode set and a second-stage mode index of the time domain resource mapping modes in the second-stage mode set;

and a second sending unit, configured to configure the third mapping relationship to the terminal through at least one of a system message indication and an RRC signaling indication.

Here, the minimum time domain scheduling unit list is represented by the number of each minimum time domain scheduling unit in the time domain scheduling unit, or by the number of the OFDM symbol of each minimum time domain scheduling unit in the time domain scheduling unit.

Optionally, the time domain resource mapping mode corresponds to an uplink burst list composed of at least one uplink burst, where the uplink burst includes one or more continuous minimum time domain scheduling units for performing uplink transmission; the time domain resource mapping mode is represented by an uplink burst parameter, and the uplink burst parameter includes at least one of the following parameters: the offset of the uplink burst relative to a predetermined starting position, the period of the uplink burst, the number of continuous minimum time domain scheduling units included in the uplink burst, and a sequence number list consisting of sequence numbers of the uplink burst used in uplink transmission in the uplink burst list.

Here, the transmission scheduling unit includes:

a third sending unit, configured to send an uplink grant message carrying at least one piece of scheduled uplink time domain scheduling unit information to the terminal, where the uplink grant message also carries one or more parameters of the uplink burst parameters, and the one or more parameters at least include an offset of the uplink burst with respect to a predetermined starting position.

Specifically, the number of the continuous minimum time domain scheduling units included in the uplink burst is a pre-defined value between the base station and the terminal, or a first default value indicated by the base station through a system message within a preset time period, or a first specified value set by the base station for the terminal through an RRC signaling, or a value of a corresponding number field in the uplink grant message;

the period of the uplink burst is a second default value indicated by the base station through the system message within a preset time period, or a second designated value set by the base station for the terminal through an RRC (radio resource control) signaling, or a value of a corresponding period field in the uplink authorization message;

the sequence number list composed of the sequence numbers of the uplink burst used in uplink transmission in the uplink burst list is determined by the value of the corresponding burst list field in the uplink grant message or by a predetermined rule. The predetermined rule includes: the whole uplink burst falls into a scheduled uplink time domain scheduling unit; or, the whole or part of the uplink burst falls into the scheduled uplink time domain scheduling unit.

Here, the predetermined starting position is a starting position of a downlink time domain scheduling unit carrying the uplink grant message, or a starting position of each scheduled uplink time domain scheduling unit, or a starting position of a first scheduled uplink time domain scheduling unit. The offset of the uplink burst relative to the predetermined starting position is represented by using a minimum time domain scheduling unit as a unit, or when the offset is an integral multiple of the number of continuous minimum time domain scheduling units included in the uplink burst, the value of the offset is represented by using the ratio of the offset to the number.

Further, the base station may further include:

a resource allocation unit, configured to allocate a discontinuous minimum time domain scheduling unit for uplink transmission to a terminal, so as to obtain an uplink scheduling resource of the terminal;

and the mode determining unit is used for determining at least one time domain resource mapping mode corresponding to the uplink scheduling resource according to the uplink scheduling resource of the terminal.

At this time, the transmission scheduling unit may include: a fourth sending unit, configured to send, to the terminal, a first DCI signaling for scheduling the terminal to perform uplink transmission using at least one of the time domain resource mapping modes.

The base station may further include:

a fifth sending unit, configured to send, to the terminal, a second DCI signaling for adjusting a transmission behavior of the terminal in any minimum time domain scheduling unit in the at least one time domain resource mapping mode within a first time window located before the any minimum time domain scheduling unit when it is determined to adjust the transmission behavior of the minimum time domain scheduling unit in the at least one time domain resource mapping mode, where the first time window has a first preset length.

Referring to fig. 18, an embodiment of the present invention further provides a terminal of a wireless communication system, including:

a first receiving unit 1801, configured to receive an uplink grant message sent by a base station, where the uplink grant message is used to schedule a terminal to perform uplink transmission using at least one time domain resource mapping mode, and each time domain resource mapping mode includes at least one minimum time domain scheduling unit for performing uplink transmission;

an uplink transmission unit 1802, configured to perform uplink transmission according to the uplink grant message.

Optionally, the time domain resource mapping mode corresponds to a time domain scheduling unit; the uplink grant message carries information of at least one scheduled uplink time domain scheduling unit and first indication information of the time domain resource mapping mode, wherein,

As an implementation manner, the terminal further includes:

the first mapping unit is used for establishing a first mapping relation between a mode index of the time domain resource mapping mode and a minimum time domain scheduling unit list based on the same configuration between a terminal and a base station, wherein the minimum time domain scheduling unit list is a list of minimum time domain scheduling units which are included in the time domain resource mapping mode and carry out uplink transmission; or, determining configuration information for the first mapping relation sent by the base station by receiving at least one of a system message and an RRC signaling indication, and locally storing the first mapping relation;

the uplink transmission unit includes: and the first transmission unit is configured to determine a minimum time domain scheduling unit list corresponding to the mode index in the first indication information according to the first mapping relationship, and perform uplink transmission on the minimum time domain scheduling unit in the determined minimum time domain scheduling unit list.

As another implementation, the terminal further includes:

a second mapping unit, configured to receive, through at least one of a system message and an RRC signaling instruction, configuration information for a third mapping relationship sent by a base station, and locally store the third mapping relationship, where the third mapping relationship is a mapping relationship between a first-level mode index of a time domain resource mapping mode in a first-level mode set and a second-level mode index of a time domain resource mapping mode in a second-level mode set, and the second-level mode set is a set formed by partial time domain resource mapping modes selected from the first-level mode set;

the uplink transmission unit includes: and a second transmission unit, configured to determine a minimum time domain scheduling unit list corresponding to the mode index in the first indication information according to a second mapping relationship and a third mapping relationship, and perform uplink transmission on the minimum time domain scheduling unit in the determined minimum time domain scheduling unit list, where the second mapping relationship is a mapping relationship between the mode index of the time domain resource mapping mode in the first-level mode set and the minimum time domain scheduling unit list, which is established based on the same configuration by the station and the terminal.

Optionally, the time domain resource mapping mode corresponds to an uplink burst list composed of at least one uplink burst, where the uplink burst includes one or more continuous minimum time domain scheduling units for performing uplink transmission;

the time domain resource mapping mode is represented by an uplink burst parameter, and the uplink burst parameter includes at least one of the following parameters: the offset of the uplink burst relative to a predetermined starting position, the period of the uplink burst, the number of continuous minimum time domain scheduling units included in the uplink burst, and a sequence number list consisting of sequence numbers of the uplink burst used in uplink transmission in the uplink burst list.

Here, the uplink grant message carries information of at least one scheduled uplink time domain scheduling unit, where the uplink burst parameter includes at least an offset of the uplink burst with respect to a predetermined starting position.

Specifically, the uplink burst parameter is determined by at least one of the following methods:

the number of the continuous minimum time domain scheduling units included in the uplink burst is a pre-defined value between the base station and the terminal, or a value which is sent by the base station and aims at the number of the continuous minimum time domain scheduling units included in the uplink burst is determined by receiving at least one of system information, RRC signaling indication and uplink authorization information;

the period of the uplink burst is a second default value indicated by the base station through the system message within a preset time period, or a value of the period of the uplink burst sent by the base station is determined by receiving at least one of the system message, the RRC signaling indication and the uplink authorization message;

determining a sequence number list consisting of sequence numbers of uplink bursts used in uplink transmission in an uplink burst list by receiving a burst list field indication in an uplink authorization message;

and determining the sequence number list consisting of the sequence numbers of the uplink bursts used in uplink transmission in the uplink burst list by a preset rule. The predetermined rule includes: the whole uplink burst falls into a scheduled uplink time domain scheduling unit; or, the whole or part of the uplink burst falls into the scheduled uplink time domain scheduling unit. The predetermined starting position is a starting position of a downlink time domain scheduling unit carrying the uplink grant message, or a starting position of each scheduled uplink time domain scheduling unit, or a starting position of a first scheduled uplink time domain scheduling unit. The offset of the uplink burst relative to the predetermined starting position is represented by using a minimum time domain scheduling unit as a unit, or when the offset is an integral multiple of the number of continuous minimum time domain scheduling units included in the uplink burst, the value of the offset is represented by using the ratio of the offset to the number.

Further, the first receiving unit is specifically configured to receive a first downlink control information DCI signaling sent by a base station, where the first downlink control information DCI signaling is used to schedule the terminal to perform uplink transmission using at least one time domain resource mapping mode, where the at least one time domain resource mapping mode corresponds to a group of discontinuous minimum time domain scheduling units;

the uplink transmission unit is specifically configured to detect, in a first time window located before any minimum time domain scheduling unit, whether a second DCI signaling sent by the base station and used to adjust a transmission behavior of the terminal in any minimum time domain scheduling unit is received, where the first time window has a first preset length, and the any minimum time domain scheduling unit is a minimum time domain scheduling unit in the group of discontinuous minimum time domain scheduling units; if the second DCI signaling is detected, adjusting the transmission behavior of any minimum time domain scheduling unit according to the second DCI signaling; and if the second DCI signaling is not detected, performing uplink transmission on any minimum time domain scheduling unit according to the first DCI signaling.

In summary, according to the transmission method, the base station and the terminal provided in the embodiments of the present invention, by pre-configuring multiple time domain resource mapping modes, the base station can flexibly schedule uplink transmission of the terminal based on the time domain resource mapping modes. In addition, the embodiment of the invention can also schedule the terminal to perform uplink transmission in the discontinuous minimum time domain scheduling unit in the time domain scheduling unit, thereby enabling the base station to flexibly adjust the transmission behavior of the terminal.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A transmission method in a wireless communication system, applied to a base station, comprising:

a base station is configured with a plurality of time domain resource mapping modes in advance, wherein each time domain resource mapping mode comprises at least one minimum time domain scheduling unit for uplink transmission;

the base station scheduling terminal uses at least one time domain resource mapping mode to carry out uplink transmission;

the time domain resource mapping pattern corresponds to a time domain scheduling unit; the step of the base station scheduling terminal using at least one time domain resource mapping mode for uplink transmission includes:

the base station sends an uplink authorization message to the terminal, wherein the uplink authorization message carries information of at least one scheduled uplink time domain scheduling unit and first indication information of the time domain resource mapping mode, and the first indication information comprises a first indication information of a time domain resource mapping mode,

or,

2. The method of claim 1, wherein before the base station schedules the terminal to use at least one of the time domain resource mapping modes for uplink transmission, the method further comprises:

the base station and the terminal establish a first mapping relation between a mode index of the time domain resource mapping mode and a minimum time domain scheduling unit list based on the same configuration;

or, the base station determines a first mapping relationship between a mode index of the time domain resource mapping mode and a minimum time domain scheduling unit list, and configures the first mapping relationship to the terminal through at least one of a system message indication and an RRC signaling indication, where the minimum time domain scheduling unit list is a list of minimum time domain scheduling units for performing uplink transmission included in the time domain resource mapping mode.

3. The method of claim 1, wherein before the base station schedules the terminal to use at least one of the time domain resource mapping modes for uplink transmission, the method further comprises:

the base station and the terminal establish a second mapping relation between a mode index of a time domain resource mapping mode in a first-level mode set and a minimum time domain scheduling unit list based on the same configuration, wherein the minimum time domain scheduling unit list is a list of minimum time domain scheduling units for uplink transmission, and the minimum time domain scheduling unit list is included in the time domain resource mapping mode;

selecting a part of time domain resource mapping modes from the first-stage mode set to form a second-stage mode set, and establishing a third mapping relation between a first-stage mode index of the time domain resource mapping modes in the first-stage mode set and a second-stage mode index of the time domain resource mapping modes in the second-stage mode set;

and the base station configures the third mapping relation to the terminal through at least one of system message indication and RRC signaling indication.

4. The method of claim 2 or 3, wherein the minimum time domain scheduling unit list is represented by the number of each minimum time domain scheduling unit in the time domain scheduling unit or by the number of the OFDM symbol of each minimum time domain scheduling unit in the time domain scheduling unit.

5. The method of claim 1, wherein before the step of the base station scheduling the terminal for uplink transmission using at least one of the time domain resource mapping modes, the method further comprises:

a base station allocates discontinuous minimum time domain scheduling units for uplink transmission to a terminal to obtain uplink scheduling resources of the terminal;

and the base station determines at least one time domain resource mapping mode corresponding to the uplink scheduling resource according to the uplink scheduling resource of the terminal.

6. The method of claim 5,

the step of the base station scheduling terminal using at least one time domain resource mapping mode for uplink transmission includes: the base station sends a first downlink control information DCI signaling for scheduling the terminal to use at least one time domain resource mapping mode for uplink transmission to the terminal;

the method further comprises the following steps:

when the base station decides to adjust the transmission behavior of any minimum time domain scheduling unit in the at least one time domain resource mapping mode, the base station sends a second DCI signaling for adjusting the transmission behavior of the terminal in any minimum time domain scheduling unit to the terminal in a first time window located before the minimum time domain scheduling unit, wherein the first time window has a first preset length.

7. A transmission method in a wireless communication system, applied to a base station, comprising:

the time domain resource mapping mode corresponds to an uplink burst list consisting of at least one uplink burst, wherein the uplink burst comprises one or more continuous minimum time domain scheduling units for uplink transmission;

8. The method as claimed in claim 7, wherein the step of the base station scheduling the terminal to use at least one of the time domain resource mapping modes for uplink transmission comprises:

and the base station sends an uplink authorization message carrying at least one piece of scheduled uplink time domain scheduling unit information to the terminal, wherein the uplink authorization message also carries more than one parameter in the uplink burst parameters, and the more than one parameter at least comprises the offset of the uplink burst relative to a preset initial position.

9. The method of claim 7,

the number of the continuous minimum time domain scheduling units included in the uplink burst is a pre-defined value between the base station and the terminal, or a first default value indicated by the base station through a system message within a preset time period, or a first defined value set by the base station for the terminal through an RRC signaling, or a value of a corresponding number field in an uplink grant message;

the value of the burst list field in the uplink grant message composed of the sequence numbers in the uplink burst list of the uplink burst used in uplink transmission is determined by a predetermined rule.

10. The method of claim 9, wherein the predetermined rule comprises: the whole uplink burst falls into a scheduled uplink time domain scheduling unit; or, the whole or part of the uplink burst falls into the scheduled uplink time domain scheduling unit.

11. The method of claim 7, wherein the predetermined starting position is a starting position of a downlink time domain scheduling unit carrying an uplink grant message, or a starting position of each scheduled uplink time domain scheduling unit, or a starting position of a first scheduled uplink time domain scheduling unit.

12. The method of claim 7, wherein an offset of the uplink burst with respect to a predetermined starting position is expressed in units of minimum time domain scheduling units, or, when the offset is an integer multiple of a number of consecutive minimum time domain scheduling units included in the uplink burst, a value of the offset is expressed in a ratio of the offset to the number.

13. The method of claim 7, wherein before the step of the base station scheduling the terminal for uplink transmission using at least one of the time domain resource mapping modes, the method further comprises:

14. The method of claim 13,

the method further comprises the following steps:

15. A transmission method of a wireless communication system, applied to a terminal side, comprising:

the terminal carries out uplink transmission according to the uplink authorization message;

the time domain resource mapping pattern corresponds to a time domain scheduling unit; the uplink grant message carries information of at least one scheduled uplink time domain scheduling unit and first indication information of the time domain resource mapping mode, wherein,

or,

16. The method of claim 15, wherein before the terminal receives the uplink grant message sent by the base station, the method further comprises:

the terminal and the base station establish a first mapping relation between a mode index of the time domain resource mapping mode and a minimum time domain scheduling unit list based on the same configuration, wherein the minimum time domain scheduling unit list is a list of minimum time domain scheduling units which are included in the time domain resource mapping mode and carry out uplink transmission;

or, the terminal determines the configuration information aiming at the first mapping relation sent by the base station by receiving at least one message of a system message and an RRC signaling indication, and locally stores the first mapping relation;

the terminal performs uplink transmission according to the uplink authorization message, including: and the terminal determines a minimum time domain scheduling unit list corresponding to the mode index in the first indication information according to the first mapping relation, and performs uplink transmission on the minimum time domain scheduling unit in the determined minimum time domain scheduling unit list.

17. The method of claim 15, wherein before the terminal receives the uplink grant message sent by the base station, the method further comprises:

a terminal receives configuration information aiming at a third mapping relation sent by a base station through at least one of a system message and an RRC signaling instruction, and locally stores the third mapping relation, wherein the third mapping relation is a mapping relation between a first-level mode index of a time domain resource mapping mode in a first-level mode set and a second-level mode index of the time domain resource mapping mode in a second-level mode set, and the second-level mode set is a set formed by partial time domain resource mapping modes selected from the first-level mode set;

the terminal performs uplink transmission according to the uplink authorization message, including:

and the terminal determines a minimum time domain scheduling unit list corresponding to the mode index in the first indication information according to a second mapping relation and a third mapping relation, and performs uplink transmission on the minimum time domain scheduling unit in the determined minimum time domain scheduling unit list, wherein the second mapping relation is a mapping relation between the mode index of the time domain resource mapping mode in the first-level mode set and the minimum time domain scheduling unit list, which is established by the station and the terminal based on the same configuration.

18. The method of claim 16 or 17, wherein the minimum time domain scheduling unit list is represented by a number of each minimum time domain scheduling unit in a time domain scheduling unit or by a number of an OFDM symbol of each minimum time domain scheduling unit in a time domain scheduling unit.

19. The method of claim 15,

the step of the terminal receiving the uplink authorization message sent by the base station comprises the following steps: the terminal receives a first DCI signaling which is sent by a base station and used for scheduling the terminal to use at least one time domain resource mapping mode for uplink transmission, wherein the at least one time domain resource mapping mode corresponds to a group of discontinuous minimum time domain scheduling units;

the terminal performs uplink transmission according to the uplink authorization message, and the step includes: the terminal detects whether a second DCI signaling which is sent by the base station and used for adjusting the transmission behavior of the terminal in any minimum time domain scheduling unit is received in a first time window which is positioned in front of any minimum time domain scheduling unit, wherein the first time window has a first preset length, and any minimum time domain scheduling unit is the minimum time domain scheduling unit in the group of discontinuous minimum time domain scheduling units;

20. A transmission method of a wireless communication system, applied to a terminal side, comprising:

21. The method of claim 20, wherein the uplink grant message carries information of at least one uplink time domain scheduling unit that is scheduled, and wherein the uplink burst parameter includes at least one parameter of the uplink burst parameter, and the one or more parameters include an offset of the uplink burst with respect to a predetermined starting position.

22. The method of claim 20, wherein the uplink burst parameter is determined by at least one of:

and the terminal determines the sequence number list consisting of the sequence numbers of the uplink bursts used in the uplink transmission in the uplink burst list through a preset rule.

23. The method of claim 22, wherein the predetermined rule comprises: the whole uplink burst falls into a scheduled uplink time domain scheduling unit; or, the whole or part of the uplink burst falls into the scheduled uplink time domain scheduling unit.

24. The method of claim 20, wherein the predetermined starting position is a starting position of a downlink time domain scheduling unit carrying an uplink grant message, or a starting position of each scheduled uplink time domain scheduling unit, or a starting position of a first scheduled uplink time domain scheduling unit.

25. The method of claim 20, wherein an offset of the uplink burst with respect to a predetermined starting position is expressed in units of a minimum time domain scheduling unit, or, when the offset is an integer multiple of a number of consecutive minimum time domain scheduling units included in the uplink burst, a value of the offset is expressed in a ratio of the offset to the number.

26. The method of claim 20,

27. A base station, comprising:

a transmission scheduling unit, configured to schedule the terminal to perform uplink transmission using at least one time domain resource mapping mode;

the time domain resource mapping pattern corresponds to a time domain scheduling unit; the transmission scheduling unit includes:

28. The base station of claim 27, further comprising:

29. The base station of claim 28,

the transmission scheduling unit includes: a fourth sending unit, configured to send, to a terminal, a first DCI signaling for scheduling the terminal to perform uplink transmission using at least one of the time domain resource mapping modes;

the base station further comprises:

30. A base station, comprising:

31. The base station of claim 30, wherein the transmission scheduling unit comprises:

32. The base station of claim 30, further comprising:

33. The base station of claim 32,

the base station further comprises:

34. A terminal of a wireless communication system, comprising:

an uplink transmission unit, configured to perform uplink transmission according to the uplink authorization message;

or,

35. The terminal of claim 34,

the first receiving unit is specifically configured to receive a first DCI signaling sent by a base station and used to schedule the terminal to perform uplink transmission using at least one time domain resource mapping mode, where the at least one time domain resource mapping mode corresponds to a group of discontinuous minimum time domain scheduling units;

36. A terminal of a wireless communication system, comprising:

37. The terminal of claim 36,