CN110035509B - A mobile communication uplink multi-slot scheduling method and system - Google Patents

Abstract

The present application discloses a mobile communication uplink multi-slot scheduling method and system. The method includes the following steps: a network device sends indication information to a terminal device to indicate the number of uplink time slots for continuous scheduling; The number of slots is a set of preselected time slots; unusable time slots are removed from the set of preselected time slots to determine a set of available time slots; the terminal device occupies the set of available time slots and sends service data to the network device. The present application also includes a system for realizing uplink multi-slot scheduling. Through the method and system of the present invention, on the basis of the existing new air interface standard, the continuous resource scheduling and allocation of multiple time slots can be completely realized, and the scheduling and transmission of more resources can be realized with less system overhead.

Description

A mobile communication uplink multi-slot scheduling method and system

technical field

The present application relates to the field of mobile communication, in particular to a multi-slot scheduling method and system for uplink information transmission.

Background technique

5G is the main direction for the development of mobile communication networks, and the current 5G new air interface specifications are also in the process of being formulated. For future communication systems, scenarios such as big data, low latency, and large connections need to be supported. In order to support different service characteristics, it is also necessary to adopt different technologies and devices at the physical layer to achieve corresponding performance enhancements. Among them, the frame structure design is the basis of the whole system design. In frame structure design, the scheduling of time domain resources is the most basic design. Currently, the New Radio (NR) standard specified by 3GPP supports a scheduling scheme based on a single slot (Slot) and a smaller mini-slot (mini-slot), where a slot is defined as 14 consecutive symbols in time. In order to save scheduling resources and better support the transmission of large service packets or some services with higher reliability requirements, the new air interface standard will also support a scheduling scheme based on multiple time slots. The present invention proposes a multi-time uplink Method and device for slot scheduling.

Contents of the invention

According to international technical standards, multi-slot scheduling is semi-statically configured by high-layer signaling uplink multi-slot aggregation factor (aggregation-factor-UL), but there is no standardized implementation. In order to solve this problem, this application proposes a mobile communication uplink multi-slot scheduling method and system.

A mobile communication uplink multi-slot scheduling method provided by an embodiment of the present application includes the following steps: the network device sends indication information to the terminal device, which is used to indicate the number of uplink time slots for continuous scheduling; according to the number of uplink time slots for continuous scheduling, , a set of preselected time slots; removing unavailable time slots from the set of preselected time slots to determine a set of available time slots; the terminal device occupies the set of available time slots and sends service data to the network device.

Preferably, the indication information includes a first indicator, which is used to indicate the number of the continuously scheduled uplink time slots; the number of the continuously scheduled uplink time slots is equal to or smaller than the value of the uplink multi-slot aggregation factor of high layer signaling.

Further preferably, the indication information is also used to indicate that uplink multi-slot scheduling is disabled.

Specifically, the embodiments of the present application include:

When the first indicator is 1 bit, it is used to indicate two states, which are respectively

Disable uplink multi-slot scheduling, and the number of uplink time slots for continuous scheduling is equal to the value of the uplink multi-slot aggregation factor of high-layer signaling;

When the first indicator is 2 bits, it is used to indicate 4 states, which are respectively

Disable uplink multi-slot scheduling, and the number of uplink time slots for continuous scheduling is equal to 2, 3 or 4;

When the first indicator is 3 bits, it is used to indicate 8 states, which are respectively

Disable uplink multi-slot scheduling, and the number of uplink time slots for continuous scheduling is equal to 2, 3, 4, 5, 6, 7 or 8.

In the mobile communication uplink multi-slot scheduling method provided in the embodiment of the present application, the unavailable time slots include at least one of the following:

Part or all of the resources in the time slot are reserved for downlink service data;

Part or all of the resources in this time slot are reserved for other terminal equipment or business data;

Part or all of the resources in this time slot are preempted by high-priority signaling and used for other terminal equipment or service data.

In the mobile communication uplink multi-slot scheduling method provided in the embodiment of the present application, the terminal device occupies the available time slot set and sends service data to the network device, including at least one of the following:

Way 1. In each time slot in the set of available time slots, the terminal device sends the same data block;

Mode 2: In each time slot in the set of available time slots, the terminal device sends different data blocks;

Manner 3: In each time slot in the set of available time slots, the terminal device sends different parts of a data block.

In order to further effectively implement uplink multi-slot scheduling, the indication information includes a second indicator, which is used to indicate the type of the mode.

Specifically, the embodiments of the present application include:

When the length of the second indicator is 1 bit, it is used to represent two states, corresponding to a preset mode respectively, and the preset mode includes any two of mode 1, mode 2, and mode 3;

When the length of the second indicator is 2 bits, it is used to indicate 4 states, corresponding to mode 1, mode 2, mode 3 and invalid status respectively.

Embodiments of the present application also provide a mobile communication uplink information transmission system, which implements the method described in any embodiment of the present application, and the system includes network equipment and at least one terminal equipment.

The network device is configured to send the indication information to the terminal device;

The network device is configured to preselect a set of time slots according to the number of uplink time slots that are continuously scheduled;

The network device is configured to remove unavailable time slots from the preselected time slot set, and determine an available time slot set;

The terminal device is configured to receive the indication information;

The terminal device is configured to occupy the set of available time slots and send service data to the network device;

The network device is further configured to receive the service data in the set of available time slots.

In the system of the embodiment of the present application, preferably, the indication information includes the first indicator and or the second indicator.

The above at least one technical solution adopted in the embodiment of the present application can achieve the following beneficial effects: through the method and system of the present invention, on the basis of the existing new air interface standard, it is possible to completely realize multi-slot continuous resource scheduling and allocation, and use less System overhead enables scheduling and transmission of more resources.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

Fig. 1 is the flow chart of an embodiment of the mobile communication uplink multi-slot scheduling method of the present invention;

FIG. 2 is a schematic diagram of an unavailable time slot in a resource conflict;

FIG. 3 is a schematic diagram of unavailable time slots preempted by high-priority signaling;

Fig. 4 is a schematic diagram of a system embodiment of mobile communication uplink multi-slot scheduling according to the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

FIG. 1 is a flow chart of an embodiment of a mobile communication uplink multi-slot scheduling method according to the present invention. A mobile communication uplink multi-slot scheduling method provided in an embodiment of the present application includes the following steps:

Step 11, the network device sends indication information to the terminal device, which is used to indicate the number of uplink time slots for continuous scheduling;

Step 12, preselecting a set of time slots according to the number of uplink time slots scheduled continuously;

Step 13, removing unavailable time slots from the preselected time slot set, and determining the available time slot set;

Step 14, the terminal device occupies the set of available time slots, and sends service data to the network device.

Steps 11 to 14 will be specifically described below.

In step 11, preferably, the indication information includes a first indicator, which is used to indicate the number of uplink time slots of the continuous scheduling; the number of uplink time slots of the continuous scheduling is equal to or less than the high-layer signaling uplink multi-slot aggregation The value of the factor. For example, as defined in 3GPP TS 38.214 v1.3.0, the value of aggregation-factor-UL is 1, 2, 4 or 8.

It should be noted that only when aggregation-factor-UL>1 is possible, continuous multi-slot scheduling is possible; when aggregation-factor-UL=1, there is no uplink multi-slot scheduling.

It should also be noted that even when aggregation-factor-UL>1, multi-slot scheduling may not be used. Therefore, further preferably, the indication information is also used to indicate that uplink multi-slot scheduling is disabled.

Embodiments of the first indicator are described in detail below. The indication information is added to the downlink control information (DCI) sent by the network device side, the indication information includes a first indicator, and the bit length and content of the first indicator are configurable.

When aggregation-factor-UL=1, the first indicator is 0 bit, that is, there is no uplink multi-slot scheduling.

When aggregation-factor-UL>1,

For example, when the first indicator is 1 bit, it is used to indicate two states, namely: disable uplink multi-slot scheduling, and the number of uplink time slots for continuous scheduling is equal to the value of the uplink multi-slot aggregation factor of high-level signaling;

For example, when the first indicator is 2 bits, it is used to indicate 4 states, which are: disable uplink multi-slot scheduling, and the number of uplink time slots for continuous scheduling is equal to 2, 3 or 4;

For example, when the first indicator is 3 bits, it is used to indicate 8 states, which are: disable uplink multi-slot scheduling, and the number of uplink time slots for continuous scheduling is equal to 2, 3, 4, 5, 6, 7 or 8 .

In special cases, if the first indicator is not included, or the first indicator is 0 bit, it means that the number of uplink time slots for continuous scheduling is equal to the value of the uplink multi-slot aggregation factor signaled by higher layers.

In step 12, when the uplink multi-slot scheduling is adopted in step 11, for example, in the case of aggregation-factor-UL>1, the indication information determines the number of consecutive aggregation-factor-UL (or less than aggregation-factor-UL) If the terminal device sends service data in time slots, it needs to determine which time slots are actually used for data transmission. The specific method is: preselecting the time slot set A, wherein the elements are time slots for continuous time slot scheduling, and the number in A is aggregation-factor-UL at this time.

In step 13, the mobile communication uplink multi-slot scheduling method provided by the embodiment of the present application traverses each element in the time slot set A, and deletes the element from the set A if the current element satisfies the unusable condition. The unavailable time slots include at least one of the following:

Part or all of the resources in the time slot are reserved for downlink service data;

Part or all of the resources in this time slot are reserved for other terminal equipment or business data;

Part or all of the resources in this time slot are preempted by high-priority signaling and used for other terminal equipment or service data.

FIG. 2 is a schematic diagram of unavailable time slots due to resource conflicts. "Slot" in the figure indicates a time slot. Figure 2 shows two examples in this case. When aggregation-factor-UL=4, all time-frequency resources in Slot 4 are not uplink resources but downlink resources (Figure 2.A), or part of Slot 4 Time-frequency resources are not uplink resources (Figure 2.B), so the same time-frequency resources as Slot 1 cannot be used for continuous data transmission. At this time, even if Slot 4 is one of the four elements in set A, it does not send uplink data as a continuous time slot.

In Figure 2.B, the directions of some resources are different, resulting in that some time slots cannot be used for continuous data transmission. Some resources in the current time slot are reserved for other services/terminals. In this typical situation, before the multi-slot scheduling, the system has semi-statically reserved some resources of the current time slot for some specific terminals or services.

In the situation shown in FIG. 2 , Slot 4 is only an example of a time slot of resource conflict. Similarly, if there is a resource conflict in Slot 3, then Slot 3 will be discarded.

Fig. 3 is a schematic diagram of unavailable time slots preempted by high-priority signaling. The base station (network device) transfers part of time slots or resources to other terminal devices, or to other service data. As shown in Figure 3, when Slot 1 contains DCI1, it is used to indicate multi-slot continuous scheduling through Slot N～Slot N+3; however, Slot 2 also contains DCI 2, indicating that terminal equipment Slot N+1 is used for other terminals At this time, other service data of the device or the terminal device is subject to the scheduling of DCI 2, and Slot N+1 no longer participates in the data transmission in this multi-slot scheduling process. Although Slot N+1 is in aggregation-factor-UL=4 consecutive time slots and is also used for uplink data, because the resources of this time slot are preempted by high-priority signaling, Slot N+1 is not used as Data is transmitted in consecutive time slots. In this case, only Slot N, Slot N+2, and Slot N+3 perform continuous data transmission.

In the situation shown in FIG. 3 , Slot N+1 is only an example of a time slot preempted by high-priority signaling. Similarly, if the time-frequency resource of Slot N+3 is preempted by high-priority signaling, Slot N+3 is discarded.

When the number of continuously scheduled uplink time slots=aggregation-factor-UL, the time slot set A' actually used for data transmission within the aggregation-factor-UL time slots is obtained through step 13.

In step 14, in the mobile communication uplink multi-slot scheduling method provided by the embodiment of the present application, the terminal device occupies the available time slot set and sends service data to the network device, including at least one of the following:

Mode 1. In each time slot in the available time slot set A', the terminal device sends the same data block;

Mode 2. In each time slot in the set of available time slots A', the terminal device sends different data blocks;

Mode 3: In each time slot in the set of available time slots A', the terminal device sends different parts of a data block.

In order to further effectively implement uplink multi-slot scheduling, the indication information includes a second indicator, which is used to indicate the type of the mode. For example, an indication symbol is added to the DCI to indicate the actual data transmission mode of each time slot. The number of uplink time slots for continuous scheduling=aggregation-factor-UL, and when the consecutive aggregation-factor-UL time slots are all available time slots, the optional method is: the terminal equipment has consecutive aggregation-factor-UL time slots Use the information indicated by the current DCI to send the same data, or the terminal device uses the information indicated by the current DCI to send different data blocks for consecutive aggregation-factor-UL timeslots, or the terminal device uses the information indicated by the current DCI for consecutive aggregation-factor-UL time slots Each slot transmits different parts of the same data block (TB) using the information indicated by the current DCI.

Specifically, the embodiment of the second indicator in the present application includes:

When the length of the second indicator is 1 bit, it is used to represent two states, corresponding to a preset mode respectively, and the preset mode includes any two of mode 1, mode 2, and mode 3;

When the length of the second indicator is 2 bits, it is used to indicate 4 states, corresponding to mode 1, mode 2, mode 3 and invalid status respectively.

In special cases, the indicated symbol length is 0 bits. At this time, one of the three methods is selected by default.

Fig. 4 is a schematic diagram of a system embodiment of mobile communication uplink multi-slot scheduling according to the present invention. Embodiments of the present application also propose a mobile communication uplink information transmission system, which implements the method described in any embodiment of the present application, and the system includes a network device 1 and at least one terminal device 2 .

The network device is configured to send the indication information 101 to the terminal device; to preselect time slot set A according to the number of uplink time slots that are continuously scheduled; to remove unavailable time slots from the preselected time slot set. With time slots, determine the set of available time slots A'.

The terminal device is configured to receive the indication information; and is used to occupy the set of available time slots and send service data 201 to the terminal device.

The network device is further configured to receive the service data in the set of available time slots.

In the system of the embodiment of the present application, preferably, the indication information is included in downlink control information (DCI); the indication information includes the first indicator and or the second indicator.

It should be noted that, in all the embodiments of the present application, preferably, the indication information further includes a set of available time slots. When the indication information includes a set of available time slots, the execution sequence of each step may be: steps 12, 13, 11, 14.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims (9)

1. A mobile communication uplink multi-time slot scheduling method is characterized by comprising the following steps:

the network equipment sends indication information to the terminal equipment, and the indication information is used for indicating the number of uplink time slots for continuous scheduling;

preselecting a time slot set according to the number of the continuously scheduled uplink time slots;

removing unavailable time slots from the preselected time slot set, and determining an available time slot set;

the terminal device occupies the available time slot set and sends service data to the network device;

the number of the continuously scheduled uplink time slots is equal to or less than the value of the uplink multi-time-slot aggregation factor of the high-level signaling; and the value of the uplink multi-slot aggregation factor of the high-layer signaling is greater than 1.

2. The method of claim 1,

the indication information comprises a first indicator used for representing the number of the continuously scheduled uplink time slots.

3. The method of claim 1,

the indication information is also used for indicating that the uplink multi-slot scheduling is forbidden.

4. The method of claim 1,

the unavailable time slot includes at least one of:

part or all of the resources in the time slot are reserved for other terminal equipment or service data;

part or all of the resources in the time slot are reserved for downlink service data;

and part or all of the resources in the time slot are preempted by the signaling with high priority and are used for other terminal equipment or service data.

5. The method as claimed in claim 1, wherein the manner for the terminal device to transmit the traffic data to the network device by occupying the set of available timeslots comprises at least one of:

in a first mode, in each time slot in the available time slot set, the terminal equipment sends the same data block;

in a second mode, in each time slot in the available time slot set, the terminal equipment sends different data blocks;

in a third aspect, in each timeslot of the set of available timeslots, the terminal device sends a different portion of a data block.

6. The method of claim 5,

the indication information includes a second indicator for indicating a type of the mode.

7. The method of claim 6, wherein the step of determining the target position is performed using a computer system

When the length of the second indicator is 1 bit, the second indicator is used for representing 2 states and respectively corresponds to a preset mode, and the preset mode comprises any 2 of a mode one, a mode two and a mode three;

and when the length of the second indicator is 2 bits, the second indicator is used for representing 4 states, which respectively correspond to a mode one state, a mode two state, a mode three state and an invalid state.

8. The method of claim 2, wherein the step of determining the target is performed in a batch process

When the first indicator is 1 bit, it is used to indicate 2 states, which are:

forbidding the uplink multi-time slot scheduling, wherein the number of the uplink time slots of the continuous scheduling is equal to the value of the uplink multi-time slot aggregation factor of the high-level signaling;

when the first indicator is 2 bits, it is used to indicate 4 states, which are:

forbidding uplink multi-time slot scheduling, wherein the number of uplink time slots for continuous scheduling is equal to 2, 3 or 4;

when the first indicator is 3 bits, it is used to indicate 8 states, which are:

the number of uplink time slots for which uplink multislot scheduling is disabled, continuous scheduling, is equal to 2, 3, 4, 5, 6, 7 or 8.

9. A mobile communication uplink information transmission system for the method according to any one of claims 1 to 8, comprising a network device and at least one terminal device;

the network device is used for sending the indication information to the terminal device;

the network equipment is used for preselecting a time slot set according to the number of the continuously scheduled uplink time slots;

the network equipment is used for removing unavailable time slots from the preselected time slot set and determining an available time slot set;

the terminal device is used for receiving the indication information;

the terminal device is configured to occupy the available timeslot set and send service data to the network device;

the network device is configured to receive the service data in the available timeslot set.

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