CN113574944B - Wireless communication method, network equipment and terminal equipment - Google Patents

Wireless communication method, network equipment and terminal equipment Download PDF

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Publication number
CN113574944B
CN113574944B CN201980094024.9A CN201980094024A CN113574944B CN 113574944 B CN113574944 B CN 113574944B CN 201980094024 A CN201980094024 A CN 201980094024A CN 113574944 B CN113574944 B CN 113574944B
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frame period
time interval
ssb
target time
lbt
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CN113574944A (en
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吴作敏
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

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  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a wireless communication method, network equipment and terminal equipment, and for a channel access mode of an FBE (fiber bulk acoustic wave), the SSB can be ensured to have more opportunities to transmit, so that the fair sharing of spectrum resources on an unlicensed spectrum is ensured. The wireless communication method includes: the network equipment determines a first frame period, wherein the first frame period is used for data transmission; the network device determines a target time interval of a DRS transmission cycle, where the target time interval is used for SSB transmission, the target time interval includes candidate locations of at least one SSB, and a first SSB of the at least one SSB corresponds to the at least one first SSB candidate location; the network device sends the first SSB according to a positional relationship between the first frame period and the target time interval.

Description

Wireless communication method, network equipment and terminal equipment
Technical Field
The embodiments of the present application relate to the field of communications, and in particular, to a wireless communication method, a network device, and a terminal device.
Background
On the unlicensed spectrum, a Listen Before Transmit (LBT) mode may be a channel access mode of a Frame Based Equipment (FBE) based on a Frame structure, where the Frame structure occurs periodically and includes a Channel Occupancy Time (COT) and an idle time in one Frame structure. The communication equipment monitors the channel in idle time, if the channel monitoring is successful, the COT in the next fixed frame period can be used for transmitting signals; if the channel monitoring fails, the COT in the next fixed frame period cannot be used for transmitting signals.
However, the communication device has a chance of an LBT attempt at the beginning of a fixed frame period that can be transmitted if LBT succeeds, and cannot be transmitted if LBT fails. In this situation, how to transmit and receive a Synchronization Signal Block (SSB) is to ensure that the SSB has more opportunities to transmit or to ensure that spectrum resources on an unlicensed spectrum are shared fairly is an urgent problem to be solved.
Disclosure of Invention
The embodiment of the application provides a wireless communication method, network equipment and terminal equipment, and for a channel access mode of an FBE (fiber bulk acoustic wave), the SSB can be ensured to have more opportunities to transmit, so that the fair sharing of spectrum resources on an unlicensed spectrum is ensured.
In a first aspect, a wireless communication method is provided, and the method includes:
the network equipment determines a first frame period, wherein the first frame period is used for data transmission;
the network device determines a target time interval of a Discovery Reference Signal (DRS) transmission period, wherein the target time interval is used for SSB transmission, the target time interval includes candidate positions of at least one SSB, and a first SSB of the at least one SSB corresponds to at least one first SSB candidate position;
the network device sends the first SSB according to a positional relationship between the first frame period and the target time interval.
In a second aspect, a wireless communication method is provided, the method comprising:
the terminal equipment determines a first frame period, wherein the first frame period is used for data transmission;
the terminal device determines a target time interval of a DRS transmission cycle, where the target time interval is used for SSB transmission, the target time interval includes candidate locations of at least one SSB, and a first SSB in the at least one SSB corresponds to the at least one first SSB candidate location;
the terminal device detects the first SSB according to a positional relationship between the first frame period and the target time interval.
In a third aspect, a network device is provided, configured to perform the method in the first aspect or each implementation manner thereof.
In particular, the network device comprises functional modules for performing the methods in the first aspect or its implementations described above.
In a fourth aspect, a terminal device is provided, configured to perform the method in the second aspect or its implementation manners.
In particular, the terminal device comprises functional modules for performing the methods in the second aspect or its implementations described above.
In a fifth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect or each implementation manner thereof.
In a sixth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method of the second aspect or each implementation mode thereof.
In a seventh aspect, an apparatus is provided for implementing the method in any one of the first to second aspects or implementations thereof.
Specifically, the apparatus includes: a processor configured to call and run the computer program from the memory, so that the apparatus on which the apparatus is installed performs the method according to any one of the first aspect to the second aspect or the implementation manner thereof.
In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects or implementations thereof.
In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.
A tenth aspect provides a computer program that, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.
Through the technical scheme, the network equipment sends the first SSB according to the position relation between the first frame period and the target time interval, and for the FBE channel access mode, the SSB can be ensured to have more opportunities to send, and the fair sharing of spectrum resources on the unlicensed spectrum can also be ensured.
Drawings
Fig. 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application.
Fig. 2 is a schematic diagram of an FBE-based channel access method according to an embodiment of the present application.
Fig. 3 is a schematic flow chart of a wireless communication method provided according to an embodiment of the present application.
Fig. 4 is a schematic diagram of SSB candidate locations within a DRS window according to an embodiment of the present application.
Fig. 5 is a schematic diagram illustrating a position of a first frame period and a target time interval according to an embodiment of the application.
Fig. 6 is a schematic diagram of positions of a target time interval and a first frame period according to another embodiment of the present disclosure.
Fig. 7 is a schematic diagram illustrating a position of a target time interval and a first frame period according to another embodiment of the present disclosure.
Fig. 8 is a schematic diagram illustrating a position of a target time interval and a first frame period according to another embodiment of the present disclosure.
Fig. 9 is a schematic diagram illustrating a position of a target time interval and a first frame period according to another embodiment of the present disclosure.
Fig. 10 is a schematic diagram illustrating a position of a target time interval and a first frame period according to another embodiment of the present disclosure.
Fig. 11 is a schematic diagram illustrating a position of a target time interval and a first frame period according to another embodiment of the present disclosure.
Fig. 12 is a schematic flow chart diagram of another wireless communication method provided in an embodiment of the present application.
Fig. 13 is a schematic block diagram of a network device provided according to an embodiment of the present application.
Fig. 14 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
Fig. 15 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
Fig. 16 is a schematic block diagram of an apparatus provided in accordance with an embodiment of the present application.
Fig. 17 is a schematic block diagram of a communication system provided in accordance with an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without making any creative effort with respect to the embodiments in the present application belong to the protection scope of the present application.
The embodiments of the present application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an Advanced Long Term Evolution (LTE-a) System, a New Radio (NR) System, an Evolution System of an NR System, an LTE (LTE-based Access to unlicensed spectrum, LTE-U) System on unlicensed spectrum, an NR (NR-based Access to unlicensed spectrum, a Universal Mobile telecommunications System (GSM) System, a UMTS (Universal Mobile telecommunications System), a Wireless Local Area Network (WLAN) System, and other Wireless communication systems.
Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technologies, mobile Communication systems will support not only conventional Communication, but also, for example, device to Device (D2D) Communication, machine to Machine (M2M) Communication, machine Type Communication (MTC), and Vehicle to Vehicle (V2V) Communication, etc., and the embodiments of the present application can also be applied to these Communication systems.
Optionally, the communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, may also be applied to a Dual Connectivity (DC) scenario, and may also be applied to an independent (SA) networking scenario.
The application spectrum is not limited in the embodiments of the present application. For example, the embodiments of the present application may be applied to a licensed spectrum, and may also be applied to an unlicensed spectrum.
For example, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area.
Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment of the present invention.
Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.
It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.
It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The embodiments of the present application are described in conjunction with a terminal device and a network device, where: a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment, etc. The terminal device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, and a next generation communication system, for example, a terminal device in an NR Network or a terminal device in a future-evolution Public Land Mobile Network (PLMN) Network, and the like.
By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of equipment that uses wearable technique to carry out intelligent design, develop can dress to daily wearing, such as glasses, gloves, wrist-watch, dress and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.
The network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB, eNodeB) in LTE, a relay Station or an Access Point, or a vehicle-mounted device, a wearable device, a network device (gNB) in an NR network, or a network device in a PLMN network that is evolved in the future.
In this embodiment, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.
Unlicensed spectrum is a nationally and regionally divided spectrum available for communication by radio devices, which is generally considered a shared spectrum, i.e., a spectrum may be used by communication devices in different communication systems as long as the regulatory requirements set on the spectrum by countries or regions are met, without requiring a proprietary spectrum license to be applied to the government.
In order for various communication systems using unlicensed spectrum for wireless communication to coexist friendly on the spectrum, some countries or regions stipulate regulatory requirements that must be met using unlicensed spectrum. For example, the communication device follows the "LBT" principle, that is, before the communication device performs signal transmission on the channel of the unlicensed spectrum, it needs to perform channel sensing first, and only when the channel sensing result is that the channel is idle, the communication device can perform signal transmission; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot transmit signals. In order to ensure fairness, in one transmission, the duration of signal transmission by the communication device using the Channel of the unlicensed spectrum cannot exceed the Maximum Channel Occupancy Time (MCOT).
On the unlicensed spectrum, before a network device sends a Physical Downlink Control Channel (PDCCH), LBT needs to be performed first, and only LBT can be transmitted successfully, and LBT cannot be transmitted when LBT fails. Thus, there is opportunistic transmission on the unlicensed spectrum.
The LBT scheme includes two types from the network deployment perspective, one is a channel access scheme of a Load-based equipment (LBE), that is, a communication device may perform channel monitoring on an unlicensed spectrum after a service arrives, and start sending a signal after the channel monitoring is successful. The other is a channel access mode of a Frame Based Equipment (FBE). As shown in fig. 2, in the FBE channel access scheme, a frame structure occurs periodically, the period length of the frame structure does not exceed a preset value, for example, 200ms, and a frame structure includes a COT (the length does not exceed 95% of a fixed frame period) and an idle time (the length is at least 5% of the channel occupation time, the minimum value is 100us, and the frame structure is located at the end of the fixed frame period). The communication device performs Clear Channel Assessment (CCA), and the communication device performs channel monitoring on a channel in an Idle Period (Idle Period), and if the channel monitoring is successful, the channel occupation time in the next fixed frame Period can be used for transmitting signals; if the channel monitoring fails, the occupied time of the channel in the next fixed frame period cannot be used for transmitting signals. Alternatively, the channel resources that the communication device may use for traffic transmission are periodically present.
In the LBE-based NR-U system, an initial access procedure of a terminal device may be performed by detecting a Discovery Reference Signal (DRS). The DRS comprises a Synchronization Signal Block (PBCH Block, SSB or SS/PBCH Block), and is transmitted in a DRS window. The DRS window is periodically generated, a transmission SSB within the DRS window may have a plurality of candidate locations, and the network device may perform a plurality of LBT attempts when transmitting the SSB within the DRS window, and may perform an SSB transmission through at least one candidate location of the plurality of candidate locations after LBT is successful. And the base station can select candidate positions for obtaining the channel use right from the SSB candidate positions in the DRS window for SSB transmission in different DRS windows according to the LBT result.
In an FBE-based NR-U system, a communication device has a chance of LBT attempt at the beginning of a fixed frame period that can be transmitted if LBT succeeds, and cannot be transmitted if LBT fails. In this situation, how to perform the transmission and reception of the SSB to ensure that the SSB has more opportunities to perform transmission or to ensure the fair sharing of spectrum resources on the unlicensed spectrum is an urgent problem to be solved. The application mainly considers the enhancement of the transmission and receiving modes of the SSB under the FBE structure.
Based on the above problem, the present application provides an enhanced scheme for the transmission and reception modes of the SSB in the FBE structure, which can ensure that the SSB has more opportunities to transmit and ensure fair sharing of spectrum resources on the unlicensed spectrum.
The following describes in detail an enhancement scheme of the transmission and reception mode of the SSB under the FBE structure designed in the present application for the above technical problem.
Fig. 3 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, and as shown in fig. 3, the method 200 may include at least part of the following:
s210, the network equipment determines a first frame period, wherein the first frame period is used for data transmission;
s220, the network device determines a target time interval of a DRS transmission cycle, where the target time interval is used for SSB transmission, the target time interval includes at least one candidate location of an SSB, and a first SSB in the at least one SSB corresponds to the at least one candidate location of the first SSB;
s230, the network device sends the first SSB according to the position relationship between the first frame period and the target time interval.
It should be noted that the first frame period may be a fixed frame period as shown in fig. 2, that is, when the network device determines the first frame period, the channel occupation time and the idle time of the first frame period may be specifically determined.
In other words, the embodiments of the present application can implement transmission and reception of SSBs under the FBE structure.
Optionally, in this embodiment of the present application, the target time interval includes one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and occupying the time of a channel corresponding to the DRS window in the DRS transmission period.
Optionally, the DRS window is determined by the network device through protocol agreement or higher layer configuration.
Optionally, the second frame period is dynamically configured for the network device.
Optionally, the first frame period is determined by the network device through protocol convention or higher layer configuration.
It should be noted that the second frame period may be the same as the first frame period in time, and the second frame period may be the same as the DRS window in transmission configuration.
Optionally, in this embodiment of the present application, the network device allows LBT before a start of a subframe or timeslot in the target time interval; and/or the network device allows LBT before the start of the at least one first SSB candidate location.
It should be noted that, if the at least one first SSB candidate location includes two or more first SSB candidate locations, different first SSB candidate locations have the same Quasi-co-located (QCL) assumption. Alternatively, the terminal device may assume that the first SSBs received at different first SSB candidate locations have the same QCL hypothesis.
Optionally, in this embodiment of the present application, assuming that the target time interval includes a DRS window in the DRS transmission period, the SSB candidate location in the DRS window includes at least one of the following two cases.
In case 1, an SSB includes a plurality of candidate locations within a DRS window. Within the DRS window, the network device may have multiple LBT opportunities, and select at least one SSB location from SSB candidate locations within the DRS window for SSB transmission after LBT is successful.
For example, as shown in case 1 in fig. 4, the set of SSB candidate locations in the DRS window includes 20 SSB candidate locations, each represented by a QCL number, where the QCL numbers are used to represent QCL relationships of different SSB candidate locations. Specifically, the terminal device may assume that SSBs transmitted on SSB candidate locations having the same QCL index have the same QCL relationship, or if the network device transmits SSBs on SSB candidate locations having the same QCL index, the network device should use the same beam (beam).
The SSBs to be transmitted include at least one SSB in the set of SSBs. For example, the set of SSBs includes SSBs 0, 1, 2, 3, the QCL number 0 SSB candidate location is used to send SSB0, the QCL number 1 SSB candidate location is used to send SSB1, the QCL number 2 SSB candidate location is used to send SSB2, and the QCL number 3 SSB candidate location is used to send SSB3. The SSBs to be transmitted include at least one SSB in the set of SSBs. For example, assuming that the SSB to be transmitted includes SSB0, SSB2, and SSB3, the SSB candidate locations labeled 0, 2, and 3 in fig. 3 may all be used for SSB transmission.
In case 1, a network device may have multiple LBT opportunities. For example, as shown in case 1 in fig. 4, the network device may have an LBT opportunity before the beginning of each subframe in the DRS window, and may perform SSB transmission after LBT is successful. Of course, the network device may also have an LBT opportunity before each SSB candidate location, which is not limited in this application.
Case 2, one SSB includes 1 candidate location within the DRS window. For example, as shown in case 2 in fig. 4, in the DRS window, if the network device obtains the usage right of the channel, SSB transmission may be performed, otherwise, SSB transmission may not be performed.
In case 2, the network device may have only one LBT opportunity and transmit the SSB after the LBT is successful. Similarly, the network device may also have an LBT opportunity before each SSB candidate location, which is not limited in this application.
In the following detailed description, the embodiments of the present application are described by taking the SSB candidate location in the DRS window as the case 1. It should be understood that when the SSB candidate location in the DRS window is case 2, the same embodiment is possible, and the description is omitted here.
Optionally, as example 1, a positional relationship between the first frame period and the target time interval is: the target time interval is located within the channel occupation time in the first frame period.
Optionally, in example 1, as shown in fig. 5, the step S230 may specifically include:
in a case that the network device fails LBT before the start of the first frame period, the network device performs LBT on a first LBT opportunity corresponding to the target time interval, the first LBT opportunity being used to send the first SSB;
the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
In other words, the target time interval has a higher priority than the first frame period, and in case that LBT fails before the first frame period starts, LBT may be performed on the LBT opportunity corresponding to the target time interval to ensure that SSB may have more opportunities to transmit.
Optionally, the network device strives for an additional LBT opportunity for SSB transmission of the target time interval by adjusting configuration parameters of the first frame period and/or the second frame period.
Optionally, in example 1, as shown in fig. 6, the step S230 may specifically include:
in case the LBT of the network device succeeds before the first frame period starts, the network device transmits the first SSB through the at least one first SSB candidate location within the target time interval.
Since the network device has already obtained the channel use right for the first frame period, the SSB transmission can be performed.
Optionally, as example 2, the positional relationship between the first frame period and the target time interval includes:
the target time interval is located in an idle time in the first frame period.
Alternatively, as example 2, as shown in fig. 7, the target time interval is located within an idle time in the first frame period.
Optionally, as example 2, as shown in fig. 8, the target time interval is located in an idle time in the first frame period, and the target time interval and a time domain resource corresponding to a second LBT opportunity at least partially overlap, where the second LBT opportunity includes the LBT opportunity corresponding to the first frame period.
Optionally, as an example 2, the step S230 may specifically include:
the network device does not perform LBT on a first LBT opportunity corresponding to the target time interval, and/or the network device does not send the first SSB on the at least one first SSB candidate location within the target time interval, where the first LBT opportunity is used to send the first SSB.
Specifically, in a case that time domain resources corresponding to the target time interval and the second LBT opportunity at least partially overlap, that is, in a case that a position relationship between the first frame period and the target time interval is as shown in fig. 8, the network device does not perform LBT on the first LBT opportunity corresponding to the target time interval, and/or the network device does not send the first SSB on the at least one first SSB candidate location within the target time interval.
The network device may be given an opportunity to perform LBT for the first frame period, and thus to transmit the first frame period.
Optionally, as an example 2, the step S230 may specifically include:
the network device performs LBT on a first LBT opportunity corresponding to the target time interval, where the first LBT opportunity is used to send the first SSB; and the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
Optionally, when the LBT succeeds before the first frame period starts and the channel usage right of the first frame period is obtained, the network device performs LBT on a first LBT opportunity corresponding to the target time interval, where the first LBT opportunity is used to send the first SSB; and the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
The DRS window may be considered higher priority to ensure that SSBs may have more opportunities to transmit.
Optionally, in a case that the LBT fails before the start of the first frame period and the channel usage right of the first frame period is not obtained, the network device performs LBT on a first LBT opportunity corresponding to the target time interval, where the first LBT opportunity is used to send the first SSB; and the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
The DRS window may be considered higher priority to ensure that SSBs may have more opportunities to transmit.
Optionally, in a case that time-domain resources corresponding to the target time interval and a second LBT opportunity at least partially overlap, that is, a positional relationship between the first frame period and the target time interval is as shown in fig. 8, the network device performs LBT on a first LBT opportunity corresponding to the target time interval, where the first LBT opportunity is used for sending the first SSB; and the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
The DRS window may be considered to have a higher priority than the first frame period to ensure that the SSB may have more opportunities to transmit.
Optionally, as example 3, the positional relationship between the first frame period and the target time interval includes:
a first part of the resources in the target time interval are located in the channel occupying time in the first frame period, and a second part of the resources in the target time interval are located in the idle time in the first frame period.
Alternatively, as example 3, as shown in fig. 9, the first part of resources is located at an end position of the channel occupying time in the first frame period.
Alternatively, as example 3, as shown in fig. 10, the first part of resources is located at a start position of a channel occupying time of the first frame period.
Alternatively, as example 3, as shown in fig. 11, the first part of resources is located at a start position and an end position of a channel occupying time in the first frame period, and the second part of resources overlaps with an idle time in the first frame period.
Alternatively, as example 3, as shown in fig. 9, 10 or 11, the target time interval is located within an idle time in the first frame period. I.e. the second part of resources in the target time interval is located in the idle time in the first frame period.
Optionally, as example 3, as shown in fig. 10 or 11, the target time interval is located in an idle time in the first frame period, and the target time interval and a time domain resource corresponding to a second LBT opportunity at least partially overlap, where the second LBT opportunity includes the LBT opportunity corresponding to the first frame period. That is, the second part of resources in the target time interval is located in the idle time in the first frame period, and the second part of resources and the time domain resources corresponding to the second LBT opportunity at least partially overlap.
Optionally, as an example 3, the step S230 may specifically include:
the network device does not perform LBT on a first LBT opportunity corresponding to the target time interval, and/or the network device does not send the first SSB on the at least one first SSB candidate location within the target time interval, wherein the first LBT opportunity is used for sending the first SSB.
Specifically, in a case that the second portion of resources and the time domain resources corresponding to the second LBT opportunity at least partially overlap, the network device does not perform LBT on a first LBT opportunity corresponding to the target time interval, and/or the network device does not transmit the first SSB on the at least one first SSB candidate location within the target time interval, where the first LBT opportunity is used for transmitting the first SSB.
The network device may be given an opportunity to perform LBT corresponding to the first frame period, thereby giving the network device an opportunity to perform transmission of the first frame period.
Optionally, as an example 3, the step S230 may specifically include:
the network device performs LBT on a first LBT opportunity corresponding to the target time interval, where the first LBT opportunity is used to send the first SSB; and the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
Optionally, even in a case that the second portion of resources and the time domain resources corresponding to the second LBT opportunity at least partially overlap, the network device performs LBT on a first LBT opportunity corresponding to the target time interval, the first LBT opportunity being used for sending the first SSB; and the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
The DRS window may be considered to have a higher priority than the first frame period to ensure that the SSB may have more opportunities to transmit.
Optionally, in this embodiment of the present application, when the target time interval is located in an idle time in the first frame period, and the target time interval and a time domain resource corresponding to the second LBT opportunity are at least partially overlapped, the network device may select to perform LBT through the first LBT opportunity or the second LBT opportunity according to a protocol or a preset rule, or may determine to perform LBT through the first LBT opportunity or the second LBT opportunity by itself.
Optionally, in an embodiment of the present application, the method further includes:
the network device configures a third frame period for transmission of channels or signals having a priority greater than or equal to the first threshold. Further, the third frame period corresponds to a third LBT opportunity, and the network device determines whether to use the channel occupation time in the third frame period according to the LBT result on the third LBT opportunity.
Therefore, in the embodiment of the present application, the network device sends the first SSB according to the position relationship between the first frame period and the target time interval, and for the channel access mode of the FBE, it may be ensured that the SSB may have more opportunities to send, and may also ensure fair sharing of spectrum resources on the unlicensed spectrum.
Fig. 12 is a schematic flow chart of a wireless communication method 300 according to an embodiment of the present application, and as shown in fig. 12, the method 300 may include at least part of the following:
s310, the terminal equipment determines a first frame period, and the first frame period is used for data transmission;
s320, the terminal device determines a target time interval of a DRS transmission cycle, where the target time interval is used for SSB transmission, the target time interval includes at least one candidate location of an SSB, and a first SSB in the at least one SSB corresponds to the at least one candidate location of the first SSB;
s330, the terminal device detects the first SSB according to the position relationship between the first frame period and the target time interval.
It should be noted that the first frame period may be a fixed frame period as shown in fig. 2, that is, when the terminal device determines the first frame period, the channel occupation time and the idle time of the first frame period may be specifically determined.
In other words, the embodiments of the present application can implement transmission and reception of SSBs under the FBE structure.
Optionally, in this embodiment of the present application, the target time interval includes one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and occupying the time of a channel corresponding to the DRS window in the DRS transmission period.
Optionally, the step S320 may specifically include:
the terminal equipment receives first information sent by network equipment, wherein the first information is used for configuring the DRS window;
and the terminal equipment determines the DRS window according to the first information.
Optionally, the step S320 may specifically include:
the terminal equipment receives second information sent by network equipment, wherein the second information is used for configuring the second frame period;
the terminal equipment determines the second frame period according to the second information.
Optionally, the step S310 may specifically include:
the terminal equipment receives third information sent by network equipment, wherein the third information is used for configuring the first frame period;
the terminal equipment determines the first frame period according to the third information.
That is, in the embodiment of the present application, both the first frame period and the target time interval may be configured by the network device.
Optionally, as example 1, a positional relationship between the first frame period and the target time interval is: the target time interval is located within the channel occupation time in the first frame period.
Optionally, in example 1, the step S330 may specifically include:
and under the condition that the terminal equipment does not receive the downlink signal within the channel occupation time of the first frame period, the terminal equipment blindly detects the first SSB at the at least one first SSB candidate position within the target time interval.
Optionally, in example 1, the step S330 may specifically include:
under the condition that the terminal equipment receives a downlink signal within the channel occupation time of the first frame period, the terminal equipment blindly detects the first SSB at the at least one first SSB candidate position within the target time interval; or, the terminal device receives the first SSB at the at least one first SSB candidate location within the target time interval, if it is determined that the network device obtains the channel usage right for the first frame period.
Optionally, as example 2, the positional relationship between the first frame period and the target time interval includes:
the target time interval is located in the idle time in the first frame period; or,
a first part of the resources in the target time interval are located in the channel occupation time in the first frame period, and a second part of the resources in the target time interval are located in the idle time in the first frame period.
Optionally, in example 2, the first part of resources is located at an end position of a channel occupation time in the first frame period; or, the first part of resources is located at the starting position of the channel occupation time of the first frame period; or, the first part of resources is located at the starting position and the ending position of the channel occupation time in the first frame period, and the second part of resources overlaps with the idle time in the first frame period.
Optionally, in example 2, the step S330 may specifically include:
the terminal device does not detect the first SSB at the at least one first SSB candidate location within the target time interval.
Optionally, in example 2, the step S330 may specifically include:
the terminal device blindly detects the first SSB at the at least one first SSB candidate location within the target time interval.
Optionally, in example 2, the target time interval and a time domain resource corresponding to a second LBT opportunity at least partially overlap, where the second LBT opportunity includes the LBT opportunity corresponding to the first frame period.
Optionally, in this embodiment of the present application, the terminal device receives third information sent by the network device, where the third information is used to configure a third frame period, and the third frame period is used for transmission of a channel or a signal whose priority is greater than or equal to the first threshold.
Optionally, the terminal device receives a channel or a signal with a priority greater than or equal to the first threshold over the channel occupying time in the third frame period.
Optionally, in this embodiment of the present application, the terminal device performs measurement on the first SSB according to a position relationship between the first frame period and the target time interval.
The blind detection in the embodiments of the present application may be detection, that is, the embodiments of the present application do not limit the detection method.
It should be further noted that, in the embodiment of the present application, for a connected terminal device, the terminal device may determine, according to indication information of a network device, target time intervals of a first frame period and a DRS transmission period, so as to perform SSB-based reception and/or measurement, for example, RLM measurement, according to the determined target time intervals.
It should be understood that, for brevity, the steps or descriptions in the wireless communication method 300 in the embodiment of the present application may refer to the corresponding steps or descriptions in the wireless communication method 200, and are not repeated herein.
Therefore, in the embodiment of the present application, the terminal device detects the first SSB according to the position relationship between the first frame period and the target time interval, and for the FBE channel access manner, the SSB may be guaranteed to have more opportunities to transmit, thereby guaranteeing fair sharing of spectrum resources on the unlicensed spectrum.
Fig. 13 shows a schematic block diagram of a network device 400 according to an embodiment of the application. As shown in fig. 13, the network device 400 includes:
a processing unit 410, configured to determine a first frame period, where the first frame period is used for data transmission;
the processing unit 410 is further configured to determine a target time interval of the DRS transmission cycle, where the target time interval is used for SSB transmission, the target time interval includes candidate locations of at least one SSB, and a first SSB in the at least one SSB corresponds to the at least one first SSB candidate location;
the processing unit 410 is further configured to send the first SSB according to a position relationship between the first frame period and the target time interval.
Optionally, the target time interval comprises one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and the channel occupation time corresponding to the DRS window in the DRS transmission period.
Optionally, the DRS window is determined by the network device through protocol agreement or higher layer configuration.
Optionally, the second frame period is dynamically configured for the network device.
Optionally, the network device allows LBT before the start of a subframe within the target time interval;
the network device allows LBT before the start of the at least one first SSB candidate location.
Optionally, the first frame period is determined by the network device through protocol convention or higher layer configuration.
Optionally, the position relationship between the first frame period and the target time interval is: the target time interval is located within the channel occupying time in the first frame period.
Optionally, the processing unit 410 is specifically configured to:
performing LBT on a first LBT opportunity corresponding to the target time interval under a condition that the network device fails LBT before the first frame period starts, the first LBT opportunity being used for sending the first SSB;
determining whether to transmit the first SSB according to the LBT result on the first LBT opportunity.
Optionally, the processing unit 410 is specifically configured to:
and in case that the LBT of the network device is successful before the first frame period starts, performing the sending of the first SSB through the at least one first SSB candidate position in the target time interval.
Optionally, the position relationship between the first frame period and the target time interval includes:
the target time interval is located in the idle time in the first frame period; or,
a first part of the resources in the target time interval are located in the channel occupation time in the first frame period, and a second part of the resources in the target time interval are located in the idle time in the first frame period.
Optionally, a first part of the resources in the target time interval is located in the channel occupying time in the first frame period, and a second part of the resources in the target time interval is located in the idle time in the first frame period, including:
the first part of resources is located at the end position of the channel occupation time in the first frame period; or,
the first part of resources is located at the starting position of the channel occupation time of the first frame period; or,
the first part of resources is located at the start position and the end position of the channel occupation time in the first frame period, and the second part of resources overlaps with the idle time in the first frame period.
Optionally, the processing unit 410 is specifically configured to:
and not performing LBT on a first LBT opportunity corresponding to the target time interval, and/or not sending the first SSB on the at least one first SSB candidate location within the target time interval, wherein the first LBT opportunity is used for sending the first SSB.
Optionally, the processing unit 410 is specifically configured to:
performing LBT on a first LBT opportunity corresponding to the target time interval, the first LBT opportunity being used to send the first SSB;
determining whether to send the first SSB according to the LBT result on the first LBT opportunity.
Optionally, the target time interval and a time domain resource corresponding to a second LBT opportunity at least partially overlap, where the second LBT opportunity includes the LBT opportunity corresponding to the first frame period.
Optionally, the processing unit 410 is further configured to configure a third frame period, where the third frame period is used for transmission of channels or signals with priority greater than or equal to the first threshold.
Optionally, the third frame period corresponds to a third LBT opportunity, and the network device determines whether to use the channel occupation time in the third frame period according to an LBT result on the third LBT opportunity.
It should be understood that the network device 400 according to the embodiment of the present application may correspond to a network device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 400 are respectively for implementing corresponding flows of the network device in the method 200 shown in fig. 3, and are not described herein again for brevity.
Fig. 14 shows a schematic block diagram of a terminal device 500 according to an embodiment of the application. As shown in fig. 14, the terminal device 500 includes:
a processing unit 510, configured to determine a first frame period, where the first frame period is used for data transmission;
the processing unit 510 is further configured to determine a target time interval of a DRS transmission cycle, where the target time interval is used for SSB transmission, the target time interval includes candidate locations of at least one SSB, and a first SSB in the at least one SSB corresponds to at least one first SSB candidate location;
a communication unit 520, configured to detect the first SSB according to a position relationship between the first frame period and the target time interval.
Optionally, the target time interval comprises one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and the channel occupation time corresponding to the DRS window in the DRS transmission period.
Optionally, the communication unit 520 is further configured to receive first information, where the first information is used to configure the DRS window;
the processing unit 510 is further configured to determine the DRS window according to the first information.
Optionally, the communication unit 520 is further configured to receive second information, where the second information is used to configure the second frame period;
the processing unit 510 is further configured to determine the second frame period according to the second information.
Optionally, the communication unit 520 is further configured to receive third information, where the third information is used to configure the first frame period;
the processing unit 510 is further configured to determine the first frame period according to the third information.
Optionally, the position relationship between the first frame period and the target time interval is: the target time interval is located within the channel occupying time in the first frame period.
Optionally, the communication unit 520 is specifically configured to:
and under the condition that the terminal equipment does not receive the downlink signal within the channel occupation time of the first frame period, blindly detecting the first SSB at the at least one first SSB candidate position within the target time interval.
Optionally, the communication unit 520 is specifically configured to:
and under the condition that the terminal equipment receives a downlink signal within the channel occupation time of the first frame period, blindly detecting the first SSB at the at least one first SSB candidate position within the target time interval.
Optionally, the position relationship between the first frame period and the target time interval includes:
the target time interval is located in the idle time of the first frame period; or,
a first part of the resources in the target time interval are located in the channel occupying time in the first frame period, and a second part of the resources in the target time interval are located in the idle time in the first frame period.
Optionally, a first part of the resources in the target time interval is located in the channel occupying time in the first frame period, and a second part of the resources in the target time interval is located in the idle time in the first frame period, including:
the first part of resources is located at the end position of the channel occupation time in the first frame period; or,
the first part of resources are positioned at the initial position of the channel occupation time of the first frame period; or,
the first part of resources is located at the start position and the end position of the channel occupation time in the first frame period, and the second part of resources overlaps with the idle time in the first frame period.
Optionally, the communication unit 520 is specifically configured to:
the first SSB is not detected at the at least one first SSB candidate location within the target time interval.
Optionally, the communication unit 520 is specifically configured to:
blindly detecting the first SSB at the at least one first SSB candidate location within the target time interval.
Optionally, the target time interval and a time domain resource corresponding to a second LBT opportunity at least partially overlap, where the second LBT opportunity includes the LBT opportunity corresponding to the first frame period.
Optionally, the communication unit 520 is further configured to receive third information, where the third information is used to configure a third frame period, and the third frame period is used for transmission of channels or signals with priority greater than or equal to the first threshold.
Optionally, the communication unit 520 is further configured to receive a channel or a signal with a priority greater than or equal to the first threshold at the channel occupying time in the third frame period.
Optionally, the processing unit 510 is further configured to perform measurement on the first SSB according to a position relationship between the first frame period and the target time interval.
It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 500 are respectively for implementing the corresponding flow of the terminal device in the method 300 shown in fig. 12, and are not described herein again for brevity.
Fig. 15 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in fig. 15 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
Optionally, as shown in fig. 15, the communication device 600 may further include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.
The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.
Optionally, as shown in fig. 15, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.
The transceiver 630 may include a transmitter and a receiver, among others. The transceiver 630 may further include antennas, and the number of antennas may be one or more.
Optionally, the communication device 600 may specifically be a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.
Optionally, the communication device 600 may specifically be a mobile terminal/terminal device in this embodiment, and the communication device 600 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in this embodiment, which is not described herein again for brevity.
Fig. 16 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 700 shown in fig. 16 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
Optionally, as shown in fig. 16, the apparatus 700 may further include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.
The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.
Optionally, the apparatus 700 may further comprise an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.
Optionally, the apparatus 700 may further comprise an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.
Optionally, the apparatus may be applied to the network device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.
Optionally, the apparatus may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.
Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, it may be a system-on-chip, a system-on-chip or a system-on-chip, etc.
Fig. 17 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. As shown in fig. 17, the communication system 800 includes a terminal device 810 and a network device 820.
The terminal device 810 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 820 may be configured to implement the corresponding function implemented by the network device in the foregoing method, which is not described herein again for brevity.
It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.
Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.
Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.
Embodiments of the present application also provide a computer program product, including computer program instructions.
Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.
Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.
The embodiment of the application also provides a computer program.
Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.
Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. With regard to such understanding, the technical solutions of the present application may be essentially implemented or contributed to by the prior art, or may be implemented in a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (64)

1. A method of wireless communication, comprising:
the method comprises the steps that a network device determines a first frame period, wherein the first frame period is used for data transmission;
the network equipment determines a target time interval of a Discovery Reference Signal (DRS) transmission cycle, wherein the target time interval is used for transmission of a Synchronization Signal Block (SSB), the target time interval comprises at least one SSB candidate position, and a first SSB in the at least one SSB corresponds to the at least one first SSB candidate position;
the network equipment sends the first SSB according to the position relation between the first frame period and the target time interval;
wherein the network device configures a third frame period for transmission of channels or signals having a priority greater than or equal to a first threshold.
2. The method of claim 1, wherein the target time interval comprises one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and occupying time of a channel corresponding to a DRS window in the DRS transmission period.
3. The method of claim 2, wherein the DRS window is determined by the network device via protocol conventions or higher layer configuration.
4. The method of claim 2, wherein the second frame period is dynamically configured by the network device.
5. The method according to any one of claims 1 to 4,
the network device allows listen before talk, LBT, before the beginning of a subframe within the target time interval; and/or the presence of a gas in the atmosphere,
the network device allows LBT before the start of the at least one first SSB candidate location.
6. The method according to any of claims 1 to 4, wherein the first frame period is determined by the network device by means of protocol convention or higher layer configuration.
7. The method according to any of claims 1 to 4, wherein the positional relationship between the first frame period and the target time interval is: the target time interval is located within a channel occupation time in the first frame period.
8. The method according to claim 7, wherein the network device sends the first SSB according to a location relationship between the first frame period and the target time interval, and comprises:
the network device performs LBT on a first LBT opportunity corresponding to the target time interval on a condition that LBT fails before the network device starts the first frame period, the first LBT opportunity being used for transmitting the first SSB;
the network device determines whether to send the first SSB according to the LBT result on the first LBT opportunity.
9. The method according to claim 7, wherein the network device sends the first SSB according to a location relationship between the first frame period and the target time interval, and comprises:
on a condition that LBT succeeds before the network device starts the first frame period, the network device transmits the first SSB through the at least one first SSB candidate location within the target time interval.
10. The method according to any one of claims 1 to 4, wherein the positional relationship of the first frame period to the target time interval comprises:
the target time interval is located in an idle time in the first frame period; or,
a first portion of the resources in the target time interval are located within the channel occupancy time in the first frame period, and a second portion of the resources in the target time interval are located within the idle time in the first frame period.
11. The method of claim 10, wherein a first portion of the resources in the target time interval are located within a channel occupancy time in the first frame period and a second portion of the resources in the target time interval are located within an idle time in the first frame period, comprising:
the first part of resources is located at the end position of the channel occupation time in the first frame period; or,
the first part of resources is located at the starting position of the channel occupation time of the first frame period; or,
the first part of resources are located at the starting position and the ending position of the channel occupation time in the first frame period, and the second part of resources are overlapped with the idle time in the first frame period.
12. The method of claim 10, wherein the network device sends the first SSB according to a location relationship between the first frame period and the target time interval, comprising:
the network device does not perform LBT on a first LBT opportunity corresponding to the target time interval, and/or the network device does not send the first SSB on the at least one first SSB candidate location within the target time interval, where the first LBT opportunity is used for sending the first SSB.
13. The method of claim 10, wherein the network device sends the first SSB according to a location relationship between the first frame period and the target time interval, comprising:
the network device performs LBT on a first LBT opportunity corresponding to the target time interval, wherein the first LBT opportunity is used for sending the first SSB;
the network device determines whether to send the first SSB according to an LBT result on the first LBT opportunity.
14. The method of claim 10, wherein the target time interval and time domain resources corresponding to a second LBT opportunity are at least partially overlapping, wherein the second LBT opportunity comprises the LBT opportunity corresponding to the first frame period.
15. The method of claim 1, wherein the third frame period corresponds to a third LBT opportunity, and wherein the network device determines whether to use the channel occupancy time in the third frame period according to an LBT result at the third LBT opportunity.
16. A method of wireless communication, comprising:
the method comprises the steps that terminal equipment determines a first frame period, wherein the first frame period is used for data transmission;
the terminal device determines a target time interval of a Discovery Reference Signal (DRS) transmission cycle, wherein the target time interval is used for transmission of a Synchronization Signal Block (SSB), the target time interval includes at least one SSB candidate position, and a first SSB in the at least one SSB corresponds to the at least one first SSB candidate position;
the terminal device detects the first SSB according to the position relation between the first frame period and the target time interval;
and the terminal equipment receives third information, wherein the third information is used for configuring a third frame period, and the third frame period is used for transmitting channels or signals with the priority greater than or equal to a first threshold value.
17. The method of claim 16, wherein the target time interval comprises one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and occupying time of a channel corresponding to a DRS window in the DRS transmission period.
18. The method of claim 17, wherein determining, by the terminal device, the target time interval for the DRS transmission cycle comprises:
the terminal equipment receives first information, wherein the first information is used for configuring the DRS window;
and the terminal equipment determines the DRS window according to the first information.
19. The method of claim 17, wherein the determining, by the terminal device, the target time interval for the DRS transmission period comprises:
the terminal equipment receives second information, wherein the second information is used for configuring the second frame period;
and the terminal equipment determines the second frame period according to the second information.
20. The method of claim 16, wherein the terminal device determines the first frame period, and wherein the method comprises:
the terminal equipment receives third information, wherein the third information is used for configuring the first frame period;
and the terminal equipment determines the first frame period according to the third information.
21. The method according to any of the claims 16 to 20, wherein the position relation between the first frame period and the target time interval is: the target time interval is located within a channel occupation time in the first frame period.
22. The method according to claim 21, wherein the terminal device detects the first SSB according to a position relationship between the first frame period and the target time interval, and comprises:
and under the condition that the terminal equipment does not receive downlink signals within the channel occupation time of the first frame period, the terminal equipment blindly detects the first SSB at the at least one first SSB candidate position within the target time interval.
23. The method according to claim 21, wherein the terminal device detects the first SSB according to a position relationship between the first frame period and the target time interval, and comprises:
and under the condition that the terminal equipment receives a downlink signal within the channel occupation time of the first frame period, the terminal equipment blindly detects the first SSB at the at least one first SSB candidate position within the target time interval.
24. The method according to any of claims 16 to 20, wherein the positional relationship of the first frame period to the target time interval comprises:
the target time interval is located in an idle time in the first frame period; or,
a first portion of the resources in the target time interval are located within the channel occupancy time in the first frame period, and a second portion of the resources in the target time interval are located within the idle time in the first frame period.
25. The method of claim 24, wherein a first portion of the resources in the target time interval are located within a channel occupancy time in the first frame period, and wherein a second portion of the resources in the target time interval are located within an idle time in the first frame period, comprises:
the first part of resources is located at the end position of the channel occupation time in the first frame period; or,
the first part of resources is located at the starting position of the channel occupation time of the first frame period; or,
the first part of resources are located at the starting position and the ending position of the channel occupation time in the first frame period, and the second part of resources are overlapped with the idle time in the first frame period.
26. The method according to claim 24, wherein the terminal device detects the first SSB according to a position relationship between the first frame period and the target time interval, and comprises:
the terminal device does not detect the first SSB at the at least one first SSB candidate position within the target time interval.
27. The method according to claim 24, wherein the terminal device detects the first SSB according to a position relationship between the first frame period and the target time interval, and comprises:
the terminal device blindly detects the first SSB at the at least one first SSB candidate position in the target time interval.
28. The method of claim 24, wherein the target time interval and time domain resources corresponding to a second LBT opportunity at least partially overlap, wherein the second LBT opportunity comprises the LBT opportunity corresponding to the first frame period.
29. The method of claim 16, further comprising:
and the terminal equipment receives the channels or signals with the priority greater than or equal to the first threshold value in the channel occupation time in the third frame period.
30. The method according to any one of claims 16 to 20, further comprising:
and the terminal equipment measures the first SSB according to the position relation between the first frame period and the target time interval.
31. A network device, comprising:
a processing unit, configured to determine a first frame period, where the first frame period is used for data transmission;
the processing unit is further configured to determine a target time interval of a discovery reference signal DRS transmission cycle, where the target time interval is used for transmission of a synchronization signal block SSB, the target time interval includes at least one candidate location of an SSB, and a first SSB of the at least one SSB corresponds to the at least one first SSB candidate location;
the processing unit is further configured to send the first SSB according to a positional relationship between the first frame period and the target time interval;
wherein the processing unit is further configured to configure a third frame period for transmission of channels or signals having a priority greater than or equal to a first threshold.
32. The network device of claim 31, wherein the target time interval comprises one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and occupying time of a channel corresponding to a DRS window in the DRS transmission period.
33. The network device of claim 32, wherein the DRS window is determined by the network device via protocol conventions or higher layer configuration.
34. The network device of claim 32, wherein the second frame period is dynamically configured for the network device.
35. The network device of claim 31,
the network device allows listen before talk, LBT, before the beginning of a subframe within the target time interval; and/or the presence of a gas in the gas,
the network device allows LBT before the start of the at least one first SSB candidate location.
36. The network device of claim 31, wherein the first frame period is determined by the network device through protocol convention or higher layer configuration.
37. The network device of any one of claims 31 to 36, wherein a positional relationship between the first frame period and the target time interval is: the target time interval is located within a channel occupation time in the first frame period.
38. The network device according to claim 37, wherein the processing unit is specifically configured to:
performing LBT on a first LBT opportunity corresponding to the target time interval under the condition that the network device fails in LBT before the first frame period starts, wherein the first LBT opportunity is used for sending the first SSB;
determining whether to send the first SSB according to the LBT result on the first LBT opportunity.
39. The network device of claim 37, wherein the processing unit is specifically configured to:
on a condition that the LBT of the network device is successful before the start of the first frame period, transmitting the first SSB through the at least one first SSB candidate location within the target time interval.
40. The network device of any one of claims 31-36, wherein the positional relationship between the first frame period and the target time interval comprises:
the target time interval is located in an idle time in the first frame period; or,
a first portion of the resources in the target time interval are located within the channel occupancy time in the first frame period, and a second portion of the resources in the target time interval are located within the idle time in the first frame period.
41. The network device of claim 40, wherein a first portion of the resources in the target time interval are located within a channel occupancy time in the first frame period, and wherein a second portion of the resources in the target time interval are located within an idle time in the first frame period, comprising:
the first part of resources is located at the end position of the channel occupation time in the first frame period; or,
the first part of resources is located at the starting position of the channel occupation time of the first frame period; or,
the first part of resources is located at a start position and an end position of a channel occupation time in the first frame period, and the second part of resources overlaps with an idle time in the first frame period.
42. The network device of claim 40, wherein the processing unit is specifically configured to:
and not performing LBT on a first LBT opportunity corresponding to the target time interval, and/or not sending the first SSB on the at least one first SSB candidate position within the target time interval, wherein the first LBT opportunity is used for sending the first SSB.
43. The network device according to claim 40, wherein the processing unit is specifically configured to:
performing LBT on a first LBT opportunity corresponding to the target time interval, wherein the first LBT opportunity is used for sending the first SSB;
determining whether to send the first SSB according to the LBT result on the first LBT opportunity.
44. The network device of claim 40, wherein the target time interval at least partially overlaps a time domain resource corresponding to a second LBT opportunity, and wherein the second LBT opportunity comprises the LBT opportunity corresponding to the first frame period.
45. The network device of claim 31, wherein the third frame period corresponds to a third LBT opportunity, and wherein the network device determines whether to use the channel occupancy time in the third frame period according to an LBT result at the third LBT opportunity.
46. A terminal device, comprising:
a processing unit, configured to determine a first frame period, where the first frame period is used for data transmission;
the processing unit is further configured to determine a target time interval of a discovery reference signal DRS transmission cycle, where the target time interval is used for transmission of a synchronization signal block SSB, the target time interval includes at least one candidate location of an SSB, and a first SSB of the at least one SSB corresponds to the at least one first SSB candidate location;
a communication unit, configured to detect the first SSB according to a position relationship between the first frame period and the target time interval;
the communication unit is further configured to receive third information, where the third information is used to configure a third frame period, and the third frame period is used for transmission of channels or signals with priorities greater than or equal to the first threshold.
47. The terminal device of claim 46, wherein the target time interval comprises one of:
a DRS window in the DRS transmission period;
a second frame period, wherein the second frame period comprises one of:
a frame period corresponding to the DRS transmission period;
and occupying time of a channel corresponding to a DRS window in the DRS transmission period.
48. The terminal device of claim 47,
the communication unit is further configured to receive first information, where the first information is used to configure the DRS window;
the processing unit is further configured to determine the DRS window according to the first information.
49. The terminal device of claim 47,
the communication unit is further configured to receive second information, where the second information is used to configure the second frame period;
the processing unit is further configured to determine the second frame period according to the second information.
50. The terminal device of claim 46,
the communication unit is further configured to receive third information, where the third information is used to configure the first frame period;
the processing unit is further configured to determine the first frame period according to the third information.
51. The terminal device of any one of claims 46 to 50, wherein a positional relationship between the first frame period and the target time interval is: the target time interval is located within a channel occupation time in the first frame period.
52. The terminal device of claim 51, wherein the communication unit is specifically configured to:
and blindly detecting the first SSB at the at least one first SSB candidate position in the target time interval under the condition that the terminal equipment does not receive the downlink signal within the channel occupation time of the first frame period.
53. The terminal device of claim 51, wherein the communication unit is specifically configured to:
and under the condition that the terminal equipment receives a downlink signal within the channel occupation time of the first frame period, blindly detecting the first SSB at the at least one first SSB candidate position within the target time interval.
54. The terminal device of any one of claims 46 to 50, wherein the positional relationship of the first frame period to the target time interval comprises:
the target time interval is located in an idle time in the first frame period; or,
a first portion of resources in the target time interval is located within channel occupancy time in the first frame period, and a second portion of resources in the target time interval is located within idle time in the first frame period.
55. The terminal device of claim 54, wherein a first portion of the resources in the target time interval are located within a channel occupancy time in the first frame period, and wherein a second portion of the resources in the target time interval are located within an idle time in the first frame period, comprises:
the first part of resources is located at the end position of the channel occupation time in the first frame period; or,
the first part of resources is located at the starting position of the channel occupation time of the first frame period; or,
the first part of resources is located at a start position and an end position of a channel occupation time in the first frame period, and the second part of resources overlaps with an idle time in the first frame period.
56. The terminal device of claim 54, wherein the communication unit is specifically configured to:
not detecting the first SSB at the at least one first SSB candidate location within the target time interval.
57. The terminal device of claim 54, wherein the communication unit is specifically configured to:
blindly detecting the first SSB on the at least one first SSB candidate location within the target time interval.
58. The terminal device of claim 54, wherein the target time interval at least partially overlaps with time domain resources corresponding to a second LBT opportunity, and wherein the second LBT opportunity comprises the LBT opportunity corresponding to the first frame period.
59. The terminal device of claim 46, wherein the communication unit is further configured to receive a channel or signal with a priority greater than or equal to the first threshold over a channel occupancy time in the third frame period.
60. The terminal device according to any of claims 46 to 50, wherein the processing unit is further configured to perform measurement for the first SSB according to a position relationship between the first frame period and the target time interval.
61. A network device, comprising: a processor and a memory, the memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any of claims 1-15.
62. A terminal device, comprising: a processor and a memory, the memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any of claims 16 to 30.
63. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 15.
64. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 16 to 30.
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