WO2022213947A1

WO2022213947A1 - Control signaling decoding method and electronic device

Info

Publication number: WO2022213947A1
Application number: PCT/CN2022/085141
Authority: WO
Inventors: 周化雨; 沈兴亚; 潘振岗
Original assignee: 展讯通信（上海）有限公司
Priority date: 2021-04-06
Filing date: 2022-04-02
Publication date: 2022-10-13
Also published as: CN115174018A

Abstract

Provided in embodiments of the present application are a control signaling decoding method and an electronic device. The method comprises: determining a short control signaling window. Decoding of control signaling configured as short control signaling can be implemented according to a method of an embodiment of the present application.

Description

A kind of control signaling decoding method and electronic device

technical field

The present application relates to the field of communication technologies, and in particular, to a control signaling decoding method and an electronic device.

Background technique

In high-band unlicensed spectrum, according to regulations, short control signaling can be used. Short control signaling may also be called contention exempt short control signaling, or LBT exempt operation.

Specifically, in the Rel-15NR protocol of 5G New Radio (NR), when the total duration of the short control signaling within the observation time of 100 milliseconds does not exceed 10 milliseconds, the short control signaling may not be You need to listen before talking (Listen Before Talk, LBT) to send. Therefore, the use of short control signaling can ensure that some important control signaling can be sent out as soon as possible or on time, which improves system reliability and causes less interference (less duty cycle). However, how to configure the control signaling as short control signaling is an urgent problem to be solved.

SUMMARY OF THE INVENTION

Aiming at the problem of how to configure the control signaling as short control signaling in the prior art, the present application provides a control signaling decoding method and electronic device, and the present application also provides a computer-readable storage medium.

The embodiment of the present application adopts the following technical solutions:

In a first aspect, the present application provides a control signaling decoding method, including:

Determine the short control signaling window.

In an implementation manner of the first aspect, the determining of the short control signaling window includes:

A set of short control signaling windows within the first time interval is determined.

In an implementation manner of the first aspect, the determining a group of short control signaling windows within the first time interval includes:

The transmission occasions of the set of short control signaling windows within the first time interval and the duration of each transmission occasion are determined.

The period and duration of the short control signaling window are determined.

In an implementation manner of the first aspect, the determining a group of short control signaling windows within the first time interval further includes:

Determining the period and duration of the short control signaling window is only valid within one of the first time intervals.

In an implementation manner of the first aspect, the determining the period and duration of the short control signaling window includes:

The period of the short control signaling window is determined according to the period of the synchronization signal block SSB, and the period of the short control signaling window is equal to the period of the SSB.

The period of the short control signaling window is determined according to the period of the SSB, where the period of the short control signaling window is equal to 1/X times the period of the SSB, where X is an integer greater than zero.

The period of the short control signaling window is determined according to the period of the SSB, and the period of the short control signaling window is equal to X times the period of the SSB, where X is an integer greater than zero.

determining the sending opportunity of the group of short control signaling windows within the first time interval;

According to the number of the sending occasions, the duration of the short control signaling window on the sending occasion is derived.

In an implementation of the first aspect, the method further includes:

According to the short control signaling window, the period of the periodic reference signal or periodic channel is determined.

In an implementation manner of the first aspect, the period of the periodic reference signal or the periodic channel is a value divisible by the first time interval.

In an implementation manner of the first aspect, the determining the period of the periodic reference signal or the periodic channel includes:

It is determined that the period at which the periodic reference signal or periodic channel is configured is within one of the first time intervals.

In an implementation manner of the first aspect, the periodic reference signal may include, but is not limited to, a channel state information reference signal, a sounding reference signal, and/or a positioning reference signal.

In an implementation manner of the first aspect, the periodic channel may include, but is not limited to, a configured physical uplink shared channel configured PUSCH, a configured physical downlink shared channel configured PDSCH and/or PDCCH.

In an implementation of the first aspect, the method further includes:

A message one Msg1 is sent within the short control signaling window, and no LBT is performed.

In an implementation of the first aspect, the method further includes:

The message three Msg3 is sent within the short control signaling window, and no LBT is performed.

In an implementation of the first aspect, the method further includes:

The physical downlink control channel PDCCH corresponding to the random access response is blindly detected only within the short control signaling window.

In an implementation manner of the first aspect, the sending Msg3 within the short control signaling window includes:

If the time domain position of the Msg3 exceeds the last time slot of the short control signaling window where the second message Msg2 is located, then determine that the time domain position of the Msg2 is the first time slot, and the first time slot is the The time slot of the next short control signaling window in the short control signaling window where Msg2 is located.

In an implementation manner of the first aspect, the determining that the time domain position of the Msg3 is the first time slot includes:

Determine that the first time slot is the scheduling offset of the next short control signaling window in the short control signaling window where the Msg2 is located minus a first interval, where the first interval is the second The interval from the time slot of the message to the last time slot of the short control signaling window where the second message is located.

In an implementation of the first aspect, the method further includes:

If there is no uplink resource after the PDCCH of the random access response within the short control signaling window, the PDCCH of the random access response is not detected.

In an implementation of the first aspect, the method further includes:

The listening reference signal, the physical uplink control channel or the physical uplink control channel or the configured PUSCH is sent within the short control signaling window, and no LBT is performed.

In an implementation of the first aspect, the method further includes:

It is scheduled to send the physical uplink shared channel within the short control signaling window, and does not perform LBT.

In an implementation of the first aspect, the method further includes:

When a channel or signal has one symbol outside the short control signaling window, LBT is performed before transmitting the channel or the signal. In an implementation manner of the first aspect, the determining a group of short control signaling windows within the first time interval includes:

The period and duration of the short control signaling window are determined.

In a second aspect, the present application proposes an electronic device, the electronic device includes a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the processor, triggering The electronic device performs the method steps as described in the first aspect.

In a third aspect, the present application provides a communication chip, characterized in that the communication chip includes a memory for storing computer program instructions and a processor for executing the computer program instructions stored in the memory, wherein when the computer When the program instructions are executed by the processor, the communication chip is triggered to execute the method steps of the first aspect.

In a fourth aspect, the present application provides a computer-readable storage medium, characterized in that, a computer program is stored in the computer-readable storage medium, and when it is run on a computer, the computer executes the method described in the first aspect. method.

According to the above-mentioned technical solutions proposed in the embodiments of the present application, at least the following technical effects can be achieved:

According to the method of the embodiment of the present application, decoding of control signaling configured as short control signaling can be implemented.

Description of drawings

FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating a sequence of four-step random access according to an embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG. 1 , the base station 110 communicates with the user equipment 120 based on the NR protocol. The user equipment 120 may randomly access the channel of the base station 110 .

For a random access channel (Random Access Channel, RACH) process, generally 4 steps (4-step random access) or 2 steps (2-step random access) are required. Fig. 2 shows the sequence flow chart of the 4-step random access. As shown in Fig. 2, for the 4-step random access, the first step (S301) is that the user equipment 120 sends a Physical Random Access Channel (Physical Random Access Channel, PRACH), also known as message 1 (Message 1, Msg1); the second step (S302) is that the base station 110 sends a random access response (Random Access Response, RAR), also known as message 2 (Message 2, Msg2); The third step (S303) is that the user equipment 120 sends a message 3 (Message 3, Msg3), and the message 3 can carry the high-level message of the RRCSetupRequest; the fourth step (S304) is that the base station 110 sends a message 4 (Message 4, Msg4), the user equipment can The successful contention access is confirmed by receiving the message 4, that is, the base station confirms to accept the random access request of the user equipment (with the user equipment identification code), and the message 4 may carry the high-level message of RRCSetup. Generally, Msg1 may include random access preamble (Random access preamble) or PRACH or random access preamble transmission (Random access preamble transmission); Msg2 may include RAR or random access response reception (Random access response reception); Msg3 may include The Physical Uplink Share Channel (PUSCH) of the RAR uplink scheduling; Msg4 may include a Physical Downlink Share Channel (PDSCH) with a UE contention resolution identifier. Since each step (eg, S301-S304) of the RACH process is basically control signaling, it may be considered to configure these control signaling as short control signaling.

However, the time domain position where the user equipment 120 sends the message 1 is uncertain, the time domain position where the base station 110 sends the message 2 is also uncertain (the user equipment needs to perform blind detection in the RAR window), and the time domain position where the user equipment 120 sends the message 3 It is scheduled by the base station through the message 2, and the time domain position where the base station sends the message 4 is also uncertain (the user equipment needs blind detection). Therefore, if these control signaling (messages 1/2/3/4) are directly configured as short control signaling, the total duration of these control signaling may exceed 10 milliseconds within 100 milliseconds, that is, the short Conditions for control signaling.

In view of the above problems, the present application proposes a communication scheme based on a short control signaling window. A short control signaling window is defined, and the base station sends the control signaling that needs to be configured as a short control signaling within the short control signaling window. In this way, In this way, the sending time of the control signaling can be concentrated in one window.

Specifically, a set of short control signaling windows is defined within a time interval (for example, the first time interval), and the sending occasions of the set of short control signaling windows within the time interval and the sending occasions on each sending occasion are defined. Duration, or directly define the period and duration of the short control signaling window (under this period and duration, the short control signaling window has a relatively fixed transmission opportunity and duration on each transmission opportunity within this time interval ). For example, define the sending timing of a group of short control signaling windows within 100 milliseconds (a value of the first time interval) as every 20 milliseconds (that is, the sending starting point is the 0th, 20th, 40th, 60th, and 80th milliseconds) , the duration of each sending opportunity is 2 milliseconds, so the total sending time within 100 milliseconds is 10 milliseconds, which satisfies the short control signaling condition. Alternatively, the period of the short control signaling window is directly defined as 20 milliseconds and the duration is 2 milliseconds, the effect is the same, and the total transmission time within 100 milliseconds is 10 milliseconds, which satisfies the short control signaling condition.

Since the base station sends the control signaling that needs to be configured as the short control signaling within the short control signaling window, the user equipment needs to know the short control signaling window to receive the short control signaling correctly. Therefore, the present application proposes a new control signaling decoding method, in which the user equipment 120 determines a short control signaling window.

Specifically, the user equipment 120 determines a set of short control signaling windows within a first time interval (eg, 100 milliseconds).

For example, in one embodiment, the user equipment 120 determines the sending occasions of a set of short control signaling windows within the first time interval and the duration of each sending occasion.

As another example, in one embodiment, the user equipment 120 determines the period and duration of the short control signaling window.

Further, the first time interval is a duration associated with the definition of short control signaling, eg, 100 milliseconds. Therefore, the period and duration of the short control signaling window are directly defined. When the short control signaling window has no multiple relationship with 100 milliseconds, the occurrence timing of the short control signaling window in different 100 milliseconds may be inconsistent. Therefore, The period and duration of the short control signaling window may be restricted to be valid only within a first time interval.

Specifically, in one embodiment, the user equipment 120 determines whether the period and duration of the short control signaling window are valid only within a first time interval.

Further, when only the transmission timings of the short control signaling window are configured, and the duration of each transmission timing is defined to be the same, the user equipment 120 only needs to know the transmission timings within the first time interval (eg, within 100 milliseconds). number), you can derive the duration on each send opportunity (eg, 100 milliseconds divided by the number of send opportunities). In this way, the configuration overhead of the base station 110 can be effectively simplified.

Therefore, in an embodiment, the user equipment 120 determines the sending occasions of the group of short control signaling windows within the first time interval; and calculates the short control signaling windows according to the number of the sending occasions The duration on the sending occasion.

Further, since the SSB in the unlicensed spectrum is the main channel and signal for initial access and measurement/synchronization, usually the short control signaling needs to include the SSB, that is, the short control signaling window needs to include the SSB. Therefore, in order to simplify the configuration overhead, in an embodiment of the present application, the time domain position of the short control signaling window is associated with the time domain position of the SSB, so that the user equipment 120 can pass the time domain position (such as the period) of the SSB. Derive the time domain position of the short control signaling window.

Therefore, in an embodiment, the user equipment 120 determines the period of the short control signaling window according to the period of the SSB. It can be as follows:

The period of the short control signaling window is equal to the period of the SSB;

The period of the short control signaling window is equal to 1/X times the period of the SSB, where X is an integer greater than zero, so that the short control signaling window has more transmission opportunities than the SSB, but the duration of each transmission opportunity is shorter;

The period of the short control signaling window is equal to X times the period of the SSB, where X is an integer greater than zero, so that the short control signaling window has fewer transmission opportunities than the SSB, but the duration of each transmission opportunity is longer.

Further, in an embodiment, the base station sends the periodic reference signal or the periodic channel within the short control signaling window. The user equipment 120 determines the period of the periodic reference signal or periodic channel according to the short control signaling window.

In addition, when the period of the periodic reference signal or periodic channel cannot be divisible by the first time interval (for example, 100 milliseconds), the transmission timing of the periodic reference signal or periodic channel in different first time intervals will be different, so that It may not be within the short control signaling window, because the transmission timing of the short control signaling window in the first time interval is the same. One approach is to limit the period of the periodic reference signal or periodic channel to be divisible by the first time interval. Another method is that the user equipment 120 determines that the periodic reference signal or periodic channel is configured with a period within a time interval, such as 100 milliseconds, 50 milliseconds, and so on.

Specifically, the periodic reference signal may include a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), a sounding reference signal (Sounding Reference Signal, SRS), and a positioning reference signal (Positioning Reference Signal, PRS). The periodic channel may include a configured physical uplink shared channel (Physical Uplink Share Channel, PUSCH), a configured physical uplink shared channel (Physical Downlink Share Channel, PDSCH) and/or PDCCH. Configured PUSCH is a semi-statically configured PUSCH, which does not require dynamic scheduling. It can also be called a configured grant PUSCH (configured grant PUSCH) or a configuration authorized uplink transmission, and can also be called a high-level configured PUSCH or a high-level configured uplink transmission. Configured PDSCH is a semi-statically configured PDSCH, which does not require dynamic scheduling. It can also be called semi-persistent scheduling PDSCH (Semi-Persitent Scheduling, SPS) or semi-persistent scheduling downlink reception, and can also be called high-level configured PDSCH or high-level configuration. downstream reception.

Further, for the four-step random access shown in FIG. 2 , in an embodiment, the user equipment 120 sends message 1 within the short control signaling window without performing LBT, or, within the short control signaling window, Message 1 belongs to short control signaling. The user equipment 120 sends the message 3 within the short control signaling window, and does not perform LBT, or the message 3 within the short control signaling window belongs to the short control signaling.

Further, in the unlicensed spectrum, since the base station 110 may not always obtain the transmission opportunity, in the four-step random access shown in FIG. The length of the control channel (Physical Downlink Control Channel, PDCCH) needs to be extended to increase the transmission opportunity of the base station 110 . However, this will also increase the power consumption caused by the user equipment 120 blindly detecting the PDCCH of the RAR. Therefore, it is necessary to limit the user equipment 120 to blindly detect the PDCCH of the RAR only within the short control signaling window, so that the base station 110 can send the RAR without LBT. the PDCCH.

Specifically, in an embodiment, the user equipment 120 blindly detects the PDCCH of the RAR only within the short control signaling window.

Further, in the four-step random access shown in FIG. 2 , message 3 is scheduled through message 2 . In the case of network congestion, on the time domain resources scheduled by message 2, it is difficult for the user equipment 120 to obtain a transmission opportunity (LBT failure), and therefore cannot send message 3.

In view of the above situation, in an embodiment, message 2 schedules message 3 within the short control signaling window, so that the user equipment does not need LBT to send message 3. However, the transmission timing of the short control signaling window within the time interval (100 ms) is sparse (for example, a transmission timing of 20 ms), message 2 needs to schedule message 3 within the next short control signaling window, and may schedule the offset (Scheduling offset) may be large (such as 20 milliseconds), in the high frequency band, the sub-carrier spacing of data may be 480 kHz or 960 kHz, and the corresponding scheduling shift amount is a lot of time slots (slots), 20 milliseconds corresponds to 480 kHz sub-carriers The 640 time slots in the interval correspond to the 1280 time slots in the 960kHz subcarrier interval. Such a large number of time slots may be difficult to accommodate in the Time Domain Resource Allocation (TDRA) table.

Therefore, in an embodiment, if the time domain position of message 3 exceeds the last time slot of the short control signaling window where message 2 is located, the user equipment 120 determines that the time domain position of message 3 is time slot x, and the time slot x is the time slot of the next short control signaling window in the short control signaling window where the message 2 is located.

Specifically, in an embodiment, the user equipment 120 determines that the time slot x is the scheduling offset of the next short control signaling window minus the interval y, where the interval y is the time slot of the message 2 to the short control signal where the message 2 is located. Let the interval of the last slot of the window.

In another embodiment, if there is no uplink resource after the detected RAR PDCCH in the current short control signaling window, the user equipment does not detect the RAR PDCCH. This can reduce the power consumption of the user equipment.

Further, in an embodiment, the user equipment 120 sends a sounding reference signal (Sounding RS, SRS), a Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) or a configured PUSCH within the short control signaling window, and does not need to perform LBT, or SRS, PUCCH or configured PUSCH within the short control signaling window belong to short control signaling. SRS, PUCCH, and configured PUSCH are all periodic channels/signals, so once configured within the short control signaling window, the user equipment can know that these channels/signals belong to short control signaling.

Further, in one embodiment, the user equipment 120 is scheduled to send the PUSCH within the short control signaling window (different from the configured PUSCH, this PUSCH is dynamically scheduled), without performing LBT, or in the short control signaling window. The scheduled PUSCH within is short control signaling. In this way, resources in the short control signaling window can be utilized as efficiently as possible.

Further, in an embodiment, when the channel or signal has one symbol outside the short control signaling window, the user equipment 120 needs LBT before sending the channel or signal.

Further, in an embodiment, the user equipment 120 may also be made to know that the SSB is short control signaling based on the short control signaling window. The base station 110 configures the short control signaling window. The user equipment 120 receives the SSB within the short control signaling window. By configuring the short control signaling window, the base station 110 can tell the user equipment 120 that it only needs to measure the SSB within the short control signaling window.

It can be understood that, some or all of the steps or operations in the foregoing embodiments are merely examples, and other operations or variations of various operations may also be performed in the embodiments of the present application. Furthermore, the various steps may be performed in a different order presented in the above-described embodiments, and may not perform all operations in the above-described embodiments.

Further, in the 1990s, an improvement in a technology can be clearly differentiated between improvements in hardware (for example, improvements to circuit structures such as diodes, transistors, switches, etc.) or improvements in software (improvements in method procedures). ). However, with the development of technology, the improvement of many methods and processes today can be regarded as a direct improvement of the hardware circuit structure. Designers almost get the corresponding hardware circuit structure by programming the improved method flow into the hardware circuit. Therefore, it cannot be said that the improvement of a method flow cannot be realized by hardware entity modules. For example, a Programmable Logic Device (PLD) (such as a Field Programmable Gate Array (FPGA)) is an integrated circuit whose logical function is determined by an accessor programming the device. It is programmed by the designer to "integrate" a digital device on a PLD, without the need for a chip manufacturer to design and manufacture a dedicated integrated circuit chip. Moreover, today, instead of making integrated circuit chips by hand, this kind of programming is also mostly implemented using "logic compiler" software, which is similar to the software compiler used in program development and writing, and needs to be compiled before compiling. The original code also has to be written in a specific programming language, which is called Hardware Description Language (HDL), and there is not only one HDL, but many kinds, such as ABEL (Advanced Boolean Expression Language) , AHDL (Altera Hardware Description Language), Confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), Lava, Lola, MyHDL, PALASM, RHDL (Ruby Hardware Description Language), etc., currently the most commonly used The ones are VHDL (Very-High-Speed Integrated Circuit Hardware Description Language) and Verilog. It should also be clear to those skilled in the art that a hardware circuit for implementing the logic method flow can be easily obtained by simply programming the method flow into the integrated circuit with the above-mentioned several hardware description languages.

The controller may be implemented in any suitable manner, for example, the controller may take the form of eg a microprocessor or processor and a computer readable medium storing computer readable program code (eg software or firmware) executable by the (micro)processor , logic gates, switches, application specific integrated circuits (ASICs), programmable logic controllers and embedded microcontrollers, examples of controllers include but are not limited to the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicon Labs C8051F320, the memory controller can also be implemented as part of the control logic of the memory. Those skilled in the art also know that, in addition to implementing the controller in the form of pure computer-readable program code, the controller can be implemented as logic gates, switches, application-specific integrated circuits, programmable logic controllers and embedded devices by logically programming the method steps. The same function can be realized in the form of a microcontroller, etc. Therefore, such a controller can be regarded as a hardware component, and the devices included therein for realizing various functions can also be regarded as a structure within the hardware component. Or even, the means for implementing various functions can be regarded as both a software module implementing a method and a structure within a hardware component.

Specifically, the apparatuses proposed in the embodiments of the present application may be fully or partially integrated into a physical entity during actual implementation, or may be physically separated. And these modules can all be implemented in the form of software calling through processing elements; they can also all be implemented in hardware; some modules can also be implemented in the form of software calling through processing elements, and some modules can be implemented in hardware. For example, the detection module may be a separately established processing element, or may be integrated in a certain chip of the electronic device. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together, and can also be implemented independently. In the implementation process, each step of the above-mentioned method or each of the above-mentioned modules can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits determined to implement the above methods, such as: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or more digital signal processors ( Digital Singnal Processor, DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array, FPGA), etc. For another example, these modules can be integrated together and implemented in the form of an on-chip device (System-On-a-Chip, SOC).

An embodiment of the present application also provides an electronic device (eg, user equipment 120 ), the electronic device includes a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the When the processor executes, the electronic device is triggered to execute the method steps described in the embodiments of the present application.

Specifically, in an embodiment of the present application, the above-mentioned one or more computer programs are stored in the above-mentioned memory, and the above-mentioned one or more computer programs include instructions. When the above-mentioned instructions are executed by the above-mentioned device, the above-mentioned device is made to execute the application. The method steps described in the examples.

Specifically, in an embodiment of the present application, the processor of the electronic device may be an on-chip device SOC, and the processor may include a central processing unit (Central Processing Unit, CPU), and may further include other types of processors. Specifically, in an embodiment of the present application, the processor of the electronic device may be a PWM control chip.

Specifically, in an embodiment of the present application, the involved processor may include, for example, a CPU, a DSP, a microcontroller, or a digital signal processor, and may also include a GPU, an embedded Neural-network Process Units (NPU, NPU) ) and an image signal processor (Image Signal Processing, ISP), the processor may also include necessary hardware accelerators or logic processing hardware circuits, such as ASICs, or one or more integrated circuits for controlling the execution of programs in the technical solution of the present application Wait. Furthermore, the processor may have the function of operating one or more software programs, which may be stored in a storage medium.

Specifically, in an embodiment of the present application, the memory of the electronic device may be a read-only memory (ROM), other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) or other types of dynamic storage devices that can store information and instructions, also can be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), compact disc read-only memory, CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, Blu-ray disk, etc.), magnetic disk storage medium or other magnetic storage device, or can also be used for portable or Any computer-readable medium that stores desired program code in the form of instructions or data structures and can be accessed by a computer.

Specifically, in an embodiment of the present application, a processor may be combined with a memory to form a processing device, which is more commonly an independent component. The processor is used to execute program codes stored in the memory to implement the method described in the embodiment of the present application. . During specific implementation, the memory can also be integrated in the processor, or be independent of the processor.

Further, the device described in the embodiments of the present application may be specifically implemented by a computer chip or an entity, or implemented by a product having a certain function.

An embodiment of the present application also proposes a communication chip, the chip is applied to the user equipment 120, and the chip includes a processor for and for executing program instructions stored in a memory, wherein, when the computer program instructions are executed by the When the processor executes, the communication chip is triggered to execute the method steps described in the embodiments of the present application.

Those skilled in the art should understand that the embodiments of the present application may be provided as a method, an apparatus, or a computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein.

In the several embodiments provided in this application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.

Specifically, an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when it runs on a computer, the computer executes the method provided by the embodiment of the present application.

An embodiment of the present application further provides a computer program product, where the computer program product includes a computer program that, when running on a computer, causes the computer to execute the method provided by the embodiment of the present application.

The descriptions of the embodiments in the present application are described with reference to flowcharts and/or block diagrams of methods, apparatuses (apparatuses), and computer program products according to the embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

It should also be noted that, in the embodiments of the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can indicate the existence of A alone, the existence of A and B at the same time, and the existence of B alone. where A and B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c may be single, or Can be multiple.

In the embodiments of the present application, the terms "comprising", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes Other elements not expressly listed, or which are inherent to such a process, method, article of manufacture, or apparatus are also included. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article of manufacture, or device that includes the element.

The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including storage devices.

Each embodiment in this application is described in a progressive manner, and the same and similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the apparatus embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for related parts.

Those of ordinary skill in the art can realize that each unit and algorithm steps described in the embodiments of the present application can be implemented by a combination of electronic hardware, computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, for the specific working process of the above-described devices, devices and units, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

The above are only specific embodiments of the present application. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for decoding control signaling, comprising:

Determine the short control signaling window.
The method according to claim 1, wherein the determining a short control signaling window comprises:

A set of short control signaling windows within the first time interval is determined.
The method according to claim 2, wherein the determining a group of short control signaling windows within the first time interval comprises:

The transmission occasions of the set of short control signaling windows within the first time interval and the duration of each transmission occasion are determined.
The method according to claim 1, wherein the determining a short control signaling window comprises:

The period and duration of the short control signaling window are determined.
The method according to claim 4, wherein the determining a group of short control signaling windows within the first time interval further comprises:

Determining the period and duration of the short control signaling window is only valid within one of the first time intervals.
The method according to claim 4, wherein the determining the period and duration of the short control signaling window comprises:

The period of the short control signaling window is determined according to the period of the synchronization signal block SSB, and the period of the short control signaling window is equal to the period of the SSB.
The method according to claim 4, wherein the determining the period and duration of the short control signaling window comprises:

The period of the short control signaling window is determined according to the period of the SSB, where the period of the short control signaling window is equal to 1/X times the period of the SSB, where X is an integer greater than zero.
The method according to claim 4, wherein the determining the period and duration of the short control signaling window comprises:

The period of the short control signaling window is determined according to the period of the SSB, and the period of the short control signaling window is equal to X times the period of the SSB, where X is an integer greater than zero.
The method according to claim 2, wherein the determining a group of short control signaling windows within the first time interval comprises:

determining the sending opportunity of the group of short control signaling windows within the first time interval;

According to the number of the sending occasions, the duration of the short control signaling window on the sending occasion is derived.
The method according to claim 4, wherein the method further comprises:

According to the short control signaling window, the period of the periodic reference signal or periodic channel is determined.
The method according to claim 10, wherein the period of the periodic reference signal or the periodic channel is a value divisible by the first time interval.
The method according to claim 10, wherein the determining the period of the periodic reference signal or the periodic channel comprises:

It is determined that the period at which the periodic reference signal or periodic channel is configured is within one of the first time intervals.
The method according to claim 10, wherein the periodic reference signal may include but is not limited to a channel state information reference signal, a sounding reference signal and/or a positioning reference signal.
The method according to claim 10, wherein the periodic channel can include but is not limited to a configured physical uplink shared channel configured PUSCH, a configured physical downlink shared channel configured PDSCH and/or PDCCH.
The method according to claim 1, wherein the method further comprises:

A message one Msg1 is sent within the short control signaling window, and no LBT is performed.
The method according to claim 1, wherein the method further comprises:

The message three Msg3 is sent within the short control signaling window, and no LBT is performed.
The method according to claim 1, wherein the method further comprises:

The physical downlink control channel PDCCH corresponding to the random access response is blindly detected only within the short control signaling window.
The method according to claim 16, wherein the sending the Msg3 within the short control signaling window comprises:

If the time domain position of the Msg3 exceeds the last time slot of the short control signaling window where the second message Msg2 is located, then determine that the time domain position of the Msg2 is the first time slot, and the first time slot is the The time slot of the next short control signaling window in the short control signaling window where Msg2 is located.
The method according to claim 18, wherein the determining the time domain position of the Msg3 as the first time slot comprises:

Determine that the first time slot is the scheduling offset of the next short control signaling window in the short control signaling window where the Msg2 is located minus a first interval, where the first interval is the second The interval from the time slot of the message to the last time slot of the short control signaling window where the second message is located.
The method according to claim 1, wherein the method further comprises:

If there is no uplink resource after the PDCCH of the random access response within the short control signaling window, the PDCCH of the random access response is not detected.
The method according to claim 1, wherein the method further comprises:

The listening reference signal, the physical uplink control channel or the physical uplink control channel or the configured PUSCH is sent within the short control signaling window, and no LBT is performed.
The method according to claim 1, wherein the method further comprises:

It is scheduled to send the physical uplink shared channel within the short control signaling window, and does not perform LBT.
The method according to claim 1, wherein the method further comprises:

When a channel or signal has one symbol outside the short control signaling window, LBT is performed before transmitting the channel or the signal.
An electronic device, characterized in that the electronic device comprises a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the processor, the electronic device is triggered The apparatus performs the method steps of any one of claims 1-23.
A communication chip, characterized in that the communication chip includes a memory for storing computer program instructions and a processor for executing the computer program instructions stored in the memory, wherein when the computer program instructions are executed by the processor when the communication chip is triggered to execute the method steps according to any one of claims 1-23.
A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, and when it is run on a computer, the computer executes the method according to any one of claims 1-23 .