WO2018121154A1 - Mini-slot configuration, method of use and intelligent terminal - Google Patents

Abstract

Provided in the embodiments of the present invention are a mini-slot configuration, a method of use and a intelligent terminal. The method comprises the following steps: the intelligent terminal receives a start position and length information of a mini-slot configured by a base station; the intelligent terminal monitors a physical downlink control channel PDCCH or ePDCCH of the mini-slot; and after monitoring control information belonging to the intelligent terminal according to the PDCCH or the ePDCCH, the intelligent terminal uses the mini-slot to send and receive data according to the start position and length information of the mini-slot. The technical solution provided by the present invention has the advantages of reducing delay.

Description

Mini time slot configuration and use method and intelligent terminal Technical field

The present invention relates to the field of communications, and in particular, to a mini-slot configuration and usage method, and an intelligent terminal.

Background technique

The fifth generation technology needs to support ultra-high data transmission rates, massive number of connections and low data transmission delays to meet the needs of different scenarios. At present, the main scenarios of 5G communication in the future include the following three types: Enhanced Mobile Broad Band (eMBB), Massive Machine Type Communications (mMTC) and High Reliability Low Delay (English: Ultra) -Reliable and Low Latency Communications, URLLC). The three types of scenarios are different for the type of business, and the requirements are different. For example, eMBB, an enhanced mobile broadband service, is mainly for business scenarios that require a higher data rate. mMTC service, a large number of machine-type communication, mainly for a large number of connected business scenarios. For URLLC, high-reliability and low-latency services are mainly used for time delay requirements and high reliability business scenarios.

For the URLLC service, the prior art cannot further reduce the delay of the URLLC service.

Summary of the invention

The embodiment of the invention discloses a mini-slot configuration and use method and an intelligent terminal, which can configure and use a mini-slot, thereby reducing the delay.

A first aspect of the embodiments of the present invention discloses a mini-slot configuration and a method for using the same. The method includes the following steps:

The smart terminal receives the starting position and length information of the mini-slot mini-slot configured by the base station;

The intelligent terminal monitors a physical downlink control channel PDCCH or ePDCCH of the mini-slot;

After the smart terminal monitors the control information belonging to the smart terminal according to the PDCCH or the ePDCCH, the smart terminal uses the mini-slot to send and receive data according to the start position and length information of the mini-slot.

Optionally, the PDCCH or the ePDCCH includes: scheduling information of one mini-slot or scheduling information of multiple mini-slots.

Optionally, the smart terminal monitors the physical downlink control channel PDCCH or ePDCCH of the mini-slot, including:

The smart terminal receives the notification message of the base station, where the notification message includes: the number and location of the mini-slots that the smart terminal needs to monitor, and the smart terminal monitors the PDCCH or ePDCCH of the mini-slot corresponding to the location.

Optionally, the number of starting positions of the mini-slot is N.

Optionally, if the subcarrier spacing used by the smart terminal is larger, the N is smaller;

If the delay requirement of the smart terminal is smaller, the N is larger;

If the uplink data is sent by using the mini-slot and the uplink-free scheduling grant is used, the user equipment acquires the grouping of the user equipment by the base station, and each group has a corresponding starting position N, where the N is an integer greater than or equal to 1. In a second aspect, an intelligent terminal is provided, where the smart terminal includes:

a transceiver unit, configured to receive a start position and length information of a mini-slot mini-slot configured by the base station;

a monitoring unit, configured to monitor a physical downlink control channel PDCCH or ePDCCH of the mini-slot;

The transceiver unit is further configured to use the mini-slot to send and receive data according to the start position and length information of the mini-slot when the monitoring unit monitors the control information belonging to the smart terminal according to the PDCCH or the ePDCCH.

Optionally, the PDCCH or the ePDCCH includes: scheduling information of one mini-slot or scheduling information of multiple mini-slots.

Optionally, the transceiver unit is further configured to receive a notification message of the base station, where the notification message includes: a quantity and a location of a mini-slot that the smart terminal needs to monitor;

The monitoring unit is specifically configured to monitor a PDCCH or an Epdcch of the mini-slot corresponding to the location.

Optionally, the number of starting positions of the mini-slot is N.

Optionally, if the subcarrier spacing used by the smart terminal is larger, the N is smaller;

If the delay requirement of the smart terminal is smaller, the N is larger;

If the uplink data is sent by using the mini-slot and the uplink-free scheduling grant is used, the user equipment acquires the grouping of the user equipment by the base station, and each group has a corresponding starting position N, where the N is an integer greater than or equal to 1. The user equipment of the technical solution provided by the present invention receives the start position and length information of the mini-slot configured by the base station, and then monitors the PDCCH or the ePDCCH to obtain the control information of the PDCCH or the ePDCCH, and then uses the location and length information of the mini-slot according to the information. The mini-slot transmits and receives data, so it can configure the mini-slot and let the user equipment use the mini-slot to transfer data according to the configuration of the base station, thereby reducing the delay.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

FIG. 1 is a schematic flowchart diagram of a mini-slot configuration and a usage method according to an embodiment of the present invention;

2 is a schematic structural diagram of a mini slot and a time slot disclosed in an embodiment of the present invention;

3 is a schematic flow chart of another mini-slot configuration and usage method disclosed in an embodiment of the present invention;

4 is a schematic structural diagram of an intelligent terminal according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another terminal according to an embodiment of the present invention.

detailed description

Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as a process or method depicted as a flowchart. Although the flowcharts describe various operations as a sequential process, many of the operations can be implemented in parallel, concurrently or concurrently. In addition, the order of operations can be rearranged. The process may be terminated when its operation is completed, but may also have additional steps not included in the figures. The processing may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

In the context of the term "computer equipment", also known as "computer", means that it can be scheduled to run through An intelligent electronic device that executes a predetermined process, such as numerical calculations and/or logic calculations, that may include a processor and a memory, the processor executing a surviving instruction pre-stored in the memory to perform a predetermined process, or by an ASIC The hardware such as FPGA or DSP performs a predetermined processing process or is implemented by a combination of the two. Computer devices include, but are not limited to, servers, personal computers, notebook computers, tablets, smart phones, and the like.

The methods discussed below, some of which are illustrated by flowcharts, can be implemented in hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or microcode, the program code or code segments to carry out the necessary tasks can be stored in a machine or computer readable medium, such as a storage medium. The processor(s) can perform the necessary tasks.

The specific structural and functional details disclosed are merely representative and are for the purpose of describing exemplary embodiments of the invention. The present invention may, however, be embodied in many alternative forms and should not be construed as being limited only to the embodiments set forth herein.

It should be understood that although the terms "first," "second," etc. may be used herein to describe the various elements, these elements should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first unit could be termed a second unit, and similarly a second unit could be termed a first unit, without departing from the scope of the exemplary embodiments. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.

It should also be noted that, in some alternative implementations, the functions/acts noted may occur in a different order than that illustrated in the drawings. For example, two figures shown in succession may in fact be executed substantially concurrently or sometimes in the reverse order, depending on the function/acts involved.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart diagram of a configuration and a usage method of a mini-slot according to an embodiment of the present invention. As shown in FIG. 1 , the method is performed by an intelligent terminal. The structure comparison between the mini-slot and the slot is as shown in FIG. 2 . The method is as shown in FIG. 1 , and includes the following steps:

Step S101: The smart terminal receives a start position and length information of a mini-slot configured by the base station.

The start position and length information of the mini-slot may be carried in Radio Resource Control (RRC) signaling. Of course, in actual applications, the start position and length information of the mini-slot may also pass. The other signaling indicates that the length information of the mini-slot can be carried by the downlink control information (Downlink Control Information, DCI) in the PDCCH.

The above starting position may be without limitation. The multiple possible transmission positions of the terminal do not overlap. For example, as shown in FIG. 2, the length of the slot is 14 symbols, and the length of the mini-slot is 2 symbols, and there are 7 possible starting positions; The sending positions can overlap, so the possible starting positions of the mini-slot are N-n+1 (N represents the number of symbols in one slot, and n represents the length of the mini-slot).

Step S102: The intelligent terminal monitors a physical downlink control channel (English: Physical Downlink Control Channel, PDCCH) or ePDCCH of the mini-slot.

Optionally, the foregoing PDCCH or ePDCCH includes one mini-slot scheduling information or multiple mini-slot scheduling information. The above plurality of mini-slots can also be aggregated mini-slots.

For example, if N mini-slots are aggregated for data transmission, the N mini-slots may be controlled by one PDCCH or ePDCCH, and the user listens to one PDCCH or ePDCCH to obtain control information and then uses N mini-slots. For example, there are three mini-slots with a length of two symbols in a slot. You can use the mini-slot aggregation method for data transmission. You can aggregate three mini-slots for data transmission. For the three mini-slots that are aggregated, Only one PDCCH or ePDCCH is needed for indication.

Certainly, when a plurality of mini-slots are included in one slot, different users do not need to listen to the PDCCH or ePDCCH of all mini-slots, but according to the notification of the base station, the user equipment selects a part of the mini-slot PDCCH or ePDCCH. Listening, for example, only listens to one or two mini-slot PDCCHs or ePDCCHs.

Step S103: After the smart terminal monitors the control information belonging to the smart terminal according to the PDCCH or the ePDCCH, the smart terminal uses the mini-slot to send and receive data according to the start position and length information of the mini-slot.

The user equipment of the technical solution provided by the present invention receives the start position and length information of the mini-slot configured by the base station, and then monitors the PDCCH or the ePDCCH to obtain the control information of the PDCCH or the ePDCCH, and then uses the location and length information of the mini-slot according to the information. The mini-slot transmits and receives data, so it can configure the mini-slot and let the user equipment use the mini-slot to transfer data according to the configuration of the base station, thereby reducing the delay.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart diagram of a configuration and a usage method of a mini-slot according to an embodiment of the present invention. As shown in FIG. 3, the method is performed by an intelligent terminal. The structure comparison between the mini-slot and the slot is as shown in FIG. 2. The method is as shown in FIG. 3, and includes the following steps:

Step S301: The smart terminal receives a start position and length information of a mini-slot that is semi-statically notified by the base station through RRC signaling.

The starting position of the Mini-slot in the above step S301 can be limited. Specifically, the starting position of the N Mini-slots can be set in a slot according to requirements, and the value of N can be configured. For example, in a slot, only the starting position of two mini-slots is limited, one at the beginning of the slot and one at the middle of the slot. For example, the mini-slot whose starting position is at the beginning of the slot can be used for the URLLC service, and the mini-slot whose starting position is in the middle of the slot can be used for the URLLC service or can be used after the device is occupied by the channel in the unlicensed band. The remaining slot resources.

Optionally, the limitation of the starting position of the above mini-slot may be related to the subcarrier. For example, the larger the subcarrier spacing, the less the optional starting position of the mini-slot in a slot, that is, the smaller N is, because even if there is only one starting position, the delay is already small. Therefore, if the URLLC service can adjust the starting position value according to different subcarrier intervals, such as a starting position, if the mini-slot is used in the unlicensed band, a plurality of starting positions can be set as needed, Different subcarrier spacing needs to be considered to improve spectral efficiency.

Optionally, the starting position limit of the above Mini-slot may be related to the delay requirement of the service. For example, users with high latency requirements can set the number of starting positions of the mini-slot accordingly. For users with low latency requirements, the number of starting positions of the mini-slot can be set less.

Optionally, the starting position limit of the above Mini-slot may be user based. For example, for the base station, any symbol in the slot can be the starting position of the mini-slot, but for a certain user, there are only a limited number of starting positions, so that different users can be in the time domain. Separate areas to prevent collisions while ensuring time delays.

Optionally, the starting position of the above Mini-slot should also distinguish between uplink and downlink. The downlink process should limit the number of starting positions of the mini-slot to reduce the number of times the user monitors the PDCCH or ePDCCH. If the uplink uses UL-grant free (Free uplink scheduling authorization) transmission, the user can be divided into i groups (i configurable), each group corresponding to one or more starting position values, thus separating the user from the time domain to prevent collision; if it is uplink Grant based, then the sending location is obtained according to the interception control information.

Step S302: The intelligent terminal monitors a physical downlink control channel (English: Physical Downlink Control Channel, PDCCH) or ePDCCH of the mini-slot.

Optionally, the foregoing PDCCH or ePDCCH includes one mini-slot scheduling information or multiple mini-slot scheduling information. The above plurality of mini-slots can also be aggregated mini-slots.

For example, if N mini-slots are aggregated for data transmission, the N mini-slots may be controlled by one PDCCH or ePDCCH, and the user listens to one PDCCH or ePDCCH to obtain control information and then uses N mini-slots. For example, there are three mini-slots with a length of two symbols in a slot. You can use the mini-slot aggregation method for data transmission. You can aggregate three mini-slots for data transmission. For the three mini-slots that are aggregated, Only one PDCCH or ePDCCH is needed for indication.

Certainly, when a plurality of mini-slots are included in one slot, different users do not need to listen to the PDCCH or ePDCCH of all mini-slots, but according to the notification of the base station, the user equipment selects a part of the mini-slot PDCCH or ePDCCH. Listening, for example, only listens to one or two mini-slot PDCCHs or ePDCCHs.

Step S303: After the smart terminal monitors the control information of the smart terminal according to the PDCCH or the ePDCCH, the smart terminal uses the mini-slot to send and receive data according to the start position and length information of the mini-slot.

The user equipment of the technical solution provided by the present invention receives the starting position of the mini-slot configured by the base station. And the length information, and then monitoring the PDCCH or ePDCCH to know the control information belonging to itself, and using the mini-slot to send and receive data according to the start position and length information of the mini-slot, so that the mini-slot can be configured and the user is allowed The device uses the mini-slot to transfer data according to the configuration of the base station, thereby reducing the delay.

Referring to FIG. 4, FIG. 4 provides a smart terminal 40, where the smart terminal includes:

The transceiver unit 401 is configured to receive a start position and length information of a mini-slot mini-slot configured by the base station;

The monitoring unit 402 is configured to monitor a physical downlink control channel PDCCH or ePDCCH of the mini-slot;

The transceiver unit 401 is further configured to use the mini-slot to send and receive data according to the start position and length information of the mini-slot when the monitoring unit monitors the control information belonging to the smart terminal according to the PDCCH or the ePDCCH.

Optionally, the PDCCH or the ePDCCH includes: scheduling information of one mini-slot or scheduling information of multiple mini-slots.

Optionally, the transceiver unit is further configured to receive a notification message of the base station, where the notification message includes: a quantity and a location of a mini-slot that the smart terminal needs to monitor;

The monitoring unit is specifically configured to monitor a PDCCH or an ePDCCH of the mini-slot corresponding to the location.

Optionally, the number of starting positions of the mini-slot is N.

Optionally, if the subcarrier spacing used by the smart terminal is larger, the N is smaller;

The smaller the delay requirement of the smart terminal, the larger the N is.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a terminal provided by the present application. The terminal 500 includes at least one processor 501, at least one memory 502, and at least one communication interface 503. The processor 501, the memory 502, and the communication interface 503 are connected by the communication bus and complete communication with each other.

The processor 501 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the above program.

The communication interface 503 is configured to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.

The memory 502 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions. The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this. The memory can exist independently and be connected to the processor via a bus. The memory can also be integrated with the processor.

The memory 502 is configured to store application code for executing the above solution, and is controlled by the processor 501 for execution. The processor 501 is configured to execute application code stored in the memory 502.

The code stored by the memory 502 can perform the steps of the method as shown in FIG. 1 or as shown in FIG. 3 as well as the refinement scheme.

The embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, where the program includes some or all of the configuration and usage methods of any one of the mini-slots described in the foregoing method embodiments. step.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

In several embodiments provided herein, it should be understood that the disclosed device may be It's way to achieve it. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a memory. A number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing memory includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like, which can store program codes.

A person skilled in the art can understand that all or part of the steps of the foregoing embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable memory, and the memory can include: a flash drive , read-only memory (English: Read-Only Memory, referred to as: ROM), random accessor (English: Random Access Memory, referred to as: RAM), disk or CD.

The embodiments of the present invention have been described in detail above, and the principles and implementations of the present invention are described in detail herein. The description of the above embodiments is only for helping to understand the method of the present invention and its core ideas; The present invention is not limited by the scope of the present invention, and the present invention is not limited by the scope of the present invention.

Claims (10)

A mini-slot configuration and method of using the method, the method comprising the following steps: The smart terminal receives the starting position and length information of the mini-slot mini-slot configured by the base station; The intelligent terminal monitors a physical downlink control channel PDCCH of the mini-slot or an enhanced physical downlink control channel ePDCCH; After the smart terminal monitors the control information belonging to the smart terminal according to the PDCCH or the ePDCCH, the smart terminal uses the mini-slot to send and receive data according to the start position and length information of the mini-slot. The method of claim 1 wherein The PDCCH or ePDCCH includes: one mini-slot scheduling information or multiple mini-slot scheduling information. The method according to claim 1, wherein the smart terminal monitors the physical downlink control channel PDCCH or ePDCCH of the mini-slot, including: The smart terminal receives the notification message of the base station, where the notification message includes: the number and location of the mini-slots that the smart terminal needs to monitor, and the smart terminal monitors the PDCCH or ePDCCH of the mini-slot corresponding to the location. The method of claim 1 wherein the number of starting locations of the mini-slot is N. The method of claim 4 wherein: The larger the subcarrier spacing used by the smart terminal, the smaller the N is; If the delay requirement of the smart terminal is smaller, the N is larger; If the uplink data is sent by using the mini-slot and the uplink-free scheduling grant is used, the user equipment acquires the grouping of the user equipment by the base station, and each group has a corresponding starting position N, where the N is an integer greater than or equal to 1. An intelligent terminal, where the smart terminal includes: a transceiver unit, configured to receive a start position and length information of a mini-slot mini-slot configured by the base station; a monitoring unit, configured to monitor a physical downlink control channel PDCCH or ePDCCH of the mini-slot; The transceiver unit is further configured to monitor, according to the PDCCH or the ePDCCH, in the listening unit. When the control information belongs to the smart terminal, the mini-slot is used to send and receive data according to the start position and length information of the mini-slot. The intelligent terminal according to claim 6, wherein The PDCCH or ePDCCH includes: one mini-slot scheduling information or multiple mini-slot scheduling information. The intelligent terminal according to claim 6, wherein The transceiver unit is further configured to receive a notification message of the base station, where the notification message includes: a quantity and a location of a mini-slot that the smart terminal needs to monitor; The monitoring unit is specifically configured to monitor a PDCCH or an ePDCCH of the mini-slot corresponding to the location. The intelligent terminal according to claim 6, wherein the number of starting positions of the mini-slot is N. The intelligent terminal according to claim 9, wherein The larger the subcarrier spacing used by the smart terminal, the smaller the N is; If the delay requirement of the smart terminal is smaller, the N is larger; If the uplink data is sent by using the mini-slot and the uplink-free scheduling grant is used, the user equipment acquires the grouping of the user equipment by the base station, and each group has a corresponding starting position N, where the N is an integer greater than or equal to 1.

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