WO2023151086A1 - 带宽可部分切换方法及装置、通信设备及存储介质 - Google Patents

带宽可部分切换方法及装置、通信设备及存储介质 Download PDF

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Publication number
WO2023151086A1
WO2023151086A1 PCT/CN2022/076234 CN2022076234W WO2023151086A1 WO 2023151086 A1 WO2023151086 A1 WO 2023151086A1 CN 2022076234 W CN2022076234 W CN 2022076234W WO 2023151086 A1 WO2023151086 A1 WO 2023151086A1
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Prior art keywords
bwp
terminal
type
initial
random access
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PCT/CN2022/076234
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English (en)
French (fr)
Inventor
牟勤
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280000454.1A priority Critical patent/CN114667764A/zh
Priority to PCT/CN2022/076234 priority patent/WO2023151086A1/zh
Publication of WO2023151086A1 publication Critical patent/WO2023151086A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present disclosure relates to the technical field of wireless communication but is not limited to the technical field of wireless communication, and in particular relates to a bandwidth part (Bandwidth Part, BWP) switching method and device, a communication device, and a storage medium.
  • BWP bandwidth part
  • the initial BWP may include: an initial uplink (Uplink, UL) BWP and an initial downlink (Downlink, DL) BWP.
  • the relevant channel for random access is configured in the initial BWP.
  • the terminal can perform random access on the channel related to the random access configured in the initial BWP.
  • the active (active) BWP that the terminal is currently working in may be different from the initial BWP.
  • Embodiments of the present disclosure provide a BWP switching method and device, a communication device, and a storage medium.
  • the first aspect of the embodiments of the present disclosure provides a BWP switching method, wherein the method is performed by a first type of terminal, and the method includes: in response to the need for random access of the first type of terminal, the first type of terminal switches from the activated BWP to the initial BWP, wherein the initial BWP is configured with a random access related channel.
  • the second aspect of the embodiments of the present disclosure provides a bandwidth part BWP switching device, wherein the device includes:
  • the switching module is configured to respond to the need for random access of the first type of terminal, the first type of terminal switches from the activated BWP to the initial BWP, wherein the initial BWP is configured with a channel related to random access.
  • the third aspect of the embodiments of the present disclosure provides a communication device, including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs the executable The program executes the BWP switching method provided in the aforementioned first aspect.
  • a fourth aspect of the embodiments of the present disclosure provides a computer storage medium, where an executable program is stored in the computer storage medium; after the executable program is executed by a processor, the BWP switching method provided in the foregoing first aspect can be implemented.
  • the active BWP currently used by the first type of terminal is not the initial BWP configured with the relevant channel configured with random access, it will switch to the relevant channel configured with random access when there is a demand for random access.
  • the initial BWP of the channel reduce the random access failure caused by the initial BWP of the channel to which the terminal randomly switches to the initial BWP that is not configured for random access, or the random access delay caused by repeated BWP switching. Timely problems, thereby improving the rate and success rate of random access.
  • Fig. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • Fig. 2 is a schematic flowchart of a BWP switching method according to an exemplary embodiment
  • Fig. 3 is a schematic flowchart of a BWP switching method according to an exemplary embodiment
  • Fig. 4 is a schematic flowchart of a BWP switching method according to an exemplary embodiment
  • Fig. 5 is a schematic diagram of a BWP handover shown according to an exemplary embodiment
  • Fig. 6 is a schematic structural diagram of a BWP switching device according to an exemplary embodiment
  • Fig. 7 is a schematic structural diagram of a communication device according to an exemplary embodiment.
  • first, second, third, etc. may use the terms first, second, third, etc. to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word “if” as used herein may be interpreted as “at” or "when” or "in response to a determination.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several UEs 11 and several access devices 12 .
  • UE11 may be a device that provides voice and/or data connectivity to a user.
  • UE11 can communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and UE11 can be an Internet of Things UE, such as a sensor device, a mobile phone (or called a "cellular" phone) and a device with an Internet of Things
  • RAN Radio Access Network
  • UE11 can be an Internet of Things UE, such as a sensor device, a mobile phone (or called a "cellular" phone) and a device with an Internet of Things
  • the UE's computer for example, may be a fixed, portable, pocket, hand-held, built-in or vehicle-mounted device.
  • UE11 may also be a device of an unmanned aerial vehicle.
  • UE11 may also be a vehicle-mounted device, for example, it may be a trip computer with a wireless communication function, or a wireless communication device connected externally to the trip computer.
  • the UE11 may also be a roadside device, for example, it may be a street lamp, a signal lamp, or other roadside devices with a wireless communication function.
  • the access device 12 may be a network side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication technology (the 4th generation mobile communication, 4G) system, also known as a Long Term Evolution (LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, New Generation Radio Access Network).
  • the MTC system the MTC system.
  • the access device 12 may be an evolved access device (eNB) adopted in a 4G system.
  • the access device 12 may also be an access device (gNB) adopting a centralized and distributed architecture in the 5G system.
  • eNB evolved access device
  • gNB access device
  • the access device 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, radio link layer control protocol (Radio Link Control, RLC) layer, media access control (Media Access Control, MAC) layer protocol stack;
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • a physical (Physical, PHY) layer protocol stack is set in the unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the access device 12 .
  • a wireless connection may be established between the access device 12 and the UE 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a technical standard of a next-generation mobile communication network based on 5G.
  • an embodiment of the present disclosure provides a BWP switching method, which is performed by a first type of terminal, and the method includes:
  • the first type of terminal switches from the activated BWP to the initial BWP, where the initial BWP is configured with a channel related to random access.
  • the channel related to random access refers to a channel used for random access.
  • the first type of terminal may be a terminal supporting a bandwidth smaller than a preset threshold, or a terminal of a predetermined type.
  • the first type of terminal may be any terminal that supports a bandwidth smaller than that of the second type of terminal.
  • the first type of terminal may be a reduced capability (RedCap) terminal, a machine communication type (Machine Communication Type, MTC) terminal, or a physical network (Internet of Things, IoT) terminal, etc.
  • the second type of terminal may include, but is not limited to: an ordinary terminal (called a Legacy UE or a non-RedCap UE) and an enhanced Mobile Broadband (eMBB) terminal.
  • an ordinary terminal called a Legacy UE or a non-RedCap UE
  • eMBB enhanced Mobile Broadband
  • the BWP switching method provided by the embodiments of the present disclosure is applied to a first type of terminal, and the active BWP configured by the first type of terminal is different from the initial BWP configured with a random access related channel.
  • the terminal when the first type of terminal loses uplink synchronization or needs to request uplink resources from the network, the terminal after completing the initial access needs random access due to various reasons. If the terminal of the first type has a demand for random access, it will switch from the active BWP currently working to the initial BWP of the relevant channel configured with random access. In this way, the current random access requirement of the first type of terminal can be met.
  • the related channels of random access may include: a resource scheduling channel for acquiring random access resources and/or a random access channel for performing random access, and the like.
  • the first type of terminal needs to perform random access, it reduces the random access failure caused by the first type of terminal switching from the current active BWP to the initial BWP of the relevant channel that is not configured with random access or the need to perform random access again.
  • the terminal of the first type may determine the initial BWP of a related channel configured with random access according to BWP configuration information. As shown in FIG. 5 , the terminal of the first type may switch from the currently working active BWP to the initial BWP configured with a random access related channel.
  • the configuration information of the initial BWP may be used to indicate at least one of the following parameters: configuration information of the initial BWP itself, and channel configuration information on the initial BWP.
  • the channel configuration information may be used to determine whether a relevant channel for random access is configured on the corresponding initial BWP.
  • the configuration information of the initial BWP may be used to explicitly Or implicitly indicate that one or several initial BWPs are configured with related channels for random access.
  • the explicit indication refers to adding indication information to indicate whether an initial BWP is configured with a relevant channel for random access. Indicated by the reserved bits or the value of the reserved bits in the configuration information of the initial BWP in the technology. In this manner, it is possible to know that one or several initial BWPs are configured with related channels for random access without analyzing the channel configuration information on each initial BWP one by one.
  • the implicit indication refers to: according to the communication protocol or configuration, it is determined that one or several initial BWPs are configured with related channels for random access.
  • the relevant channels of the random access include at least one of the following:
  • Physical Random Access Channel Physical Random Access Channel
  • the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) carrying the random access response;
  • a Physical Downlink Control Channel (PDCCH) for scheduling random access responses.
  • PDCCH Physical Downlink Control Channel
  • the physical random channel can be used for the first type of terminal to send a random access request.
  • one or more random access opportunities are configured on the PRACH, and the terminal of the first type may send a random access request based on the random access opportunities.
  • the random access mode supported by the first type of terminal may include: performing random access by using 4-step random access, and/or performing random access by using 2-step random access.
  • the first type of terminal if the first type of terminal supports a partial random access mode in the random access mode, the first type of terminal will switch from activating the BWP to the channel corresponding to the random access mode supported by the first type of terminal initial BWP.
  • the base station after receiving the random access request, the base station will send a random access response to the terminal, and the random access response can be sent on the PDSCH, and the sending resource of the random access response can be through PDCCH scheduling, therefore, the random access-related channel in the embodiments of the present disclosure may include: scheduling a random access response scheduling resource PDCCH.
  • the initial BWP to which the terminal of the first type is handed over may also be configured with a PDCCH candidate transmission resource set.
  • the collection of the candidate transmission resources is the random search space. If the candidate transmission resource set of the PDCCH scheduling the random access response is located on the initial BWP, the PDCCH scheduling the random access response must be configured on the initial BWP. Therefore, it can be considered as an implicit indication in a sense.
  • an embodiment of the present disclosure provides a BWP switching method, which is performed by a first type of terminal, and the method includes:
  • the first type of terminal switches from the activated BWP to the first initial BWP, where the first initial BWP is initial BWP.
  • the first initial BWP may be an initial BWP specially configured for the first type of terminal, and may be an initial BWP configured with a random access related channel.
  • the first initial BWP may be an initial BWP of a channel related to the random access among multiple initial BWPs of the terminal of the first type.
  • the first initial BWP may be an initial BWP specially configured for the first type of terminal, and the second type of terminal cannot use the first initial BWP.
  • the first initial BWP may be an initial BWP specially configured for the first type of terminal, and the second type of terminal cannot use the first initial BWP.
  • not all first-type terminals are configured with a dedicated first initial BWP. If the first type of terminal switches to the first initial BWP, since the first initial BWP is an initial BWP configured for the first type of terminal, the bandwidth of the first initial BWP is adapted to the first type of terminal.
  • the S310 may include: in response to a first type of terminal requiring random access and configured with a first initial BWP for the first type of terminal, the first type of terminal switches from the activated BWP to the third An initial BWP; wherein, the third initial BWP is: a specific initial BWP configured with a random access-related channel on the first initial BWP.
  • the network may have configured an initial BWP configured with random access related channels
  • the third initial BWP may be a specific initial BWP among multiple initial BWPs configured with random access related channels.
  • the third initial BWP may be: the terminal of the first type is determined according to a network instruction, or determined according to a communication protocol.
  • the first type of terminal in response to the first type of terminal determining that there are two or more first initial BWPs configured with random access related channels, the first type of terminal starts from the two or more first initial BWPs A third initial BWP is determined in the BWP.
  • an embodiment of the present disclosure provides a BWP handover method, which is performed by a first type of terminal, and the method includes:
  • the second initial BWP is the initial BWP configured for the second type of terminal, or the initial BWP configured for the first type of terminal and the second type of terminal, and the second type of terminal is a terminal other than the first type of terminal.
  • the second-type terminal is any type of terminal except the first-type terminal.
  • the maximum bandwidth supported by the second type of terminal may be greater than the bandwidth of the first type of terminal.
  • the second initial BWP may be an initial BWP configured for the second type of terminal, or an initial BWP that can be configured for the first type of terminal and the second type of terminal.
  • the relevant channels of the random access of the first type of terminal and the second type of terminal can be configured on the same initial BWP, at this time, the first type of terminal can switch from the current active BWP to the dedicated initial BWP of the second type of terminal (that is, a second initial BWP) or a second initial BWP that can be shared by the first type of terminal and the second type of terminal.
  • the dedicated initial BWP of the second type of terminal that is, a second initial BWP
  • a second initial BWP a second initial BWP that can be shared by the first type of terminal and the second type of terminal.
  • the terminal switches from an active BWP to a second initial BWP, wherein the second initial BWP is configured with PRACH and/or includes a random search space.
  • the first type of terminal can directly send a random access request on the PRACH; and, if the second initial BWP is configured with a random search space, the first type of terminal switches to the second initial BWP After accessing, the scheduling of the random access response on the network side can be monitored by monitoring the random search space.
  • the activating the BWP includes: activating the uplink BWP, and/or activating the downlink BWP. Activate the uplink BWP for uplink transmission of the terminal; activate the downlink BWP for downlink reception of the terminal.
  • the initial BWP includes: an initial uplink BWP, and/or an initial downlink BWP.
  • the initial uplink BWP may be used for initial uplink access of the terminal and sending of a random access request, and the like.
  • the initial downlink BWP may be used for initial downlink access of the terminal and/or monitoring of system messages and/or monitoring of paging messages and the like.
  • the switching of the first type of terminal from the activated BWP to the initial BWP includes:
  • the first type of terminal switches from the activated BWP to the configuration with the random access on the initial BWP of the incoming relevant channel.
  • the two or more initial BWPs here may include: two or more initial BWPs corresponding to all types of terminals, or two or more initial BWPs corresponding to the first type of terminals.
  • the first type of terminal needs to select the initial BWP of the relevant channel configured with random access from the two or more initial BWPs when it needs random access. BWP.
  • RedCap terminals With the introduction of RedCap terminals, it is supported to configure a separate initial (initial) UL BWP for RedCap terminals. From the perspective of the network, there are two or more initial UL BWPs in the system. And it is possible to randomly access the corresponding uplink channels, such as PRACH, PUCCH, PUSCH, etc. on the two initial (initial) UL BWPs respectively.
  • the network may also configure a separate initial (initial) DL BWP for RedCap terminals. And there may be one or more initial (initial) DL BWPs, and different initial (initial) DL BWPs may include different downlink channels of the terminal. For example, some initial (initial) DL BWPs may contain system messages, and some initial (initial) DL BWPs may contain paging messages. Some downlink channels may only include downlink messages related to random access.
  • the terminal in response to the need for random access by the first type of terminal, and no random access channel is configured on the currently monitored active (active) BWP, the terminal switches from the current active (active) BWP to the first On the initial BWP or the second initial BWP.
  • the first initial BWP is an initial BWP dedicated to the first type of terminal, and terminals other than the first type of terminal may not be able to use the first initial BWP.
  • the second initial BWP may be an initial BWP configured for the second type of terminal, or an initial BWP that can be configured for the first type of terminal and the second type of terminal.
  • the activation (active) BWP includes: at least one of activation (active) UL BWP or activation (active) DL BWP.
  • the second initial BWP includes at least one of the first initial DL BWP or the initial UL BWP.
  • the second initial BWP includes at least one of the second initial DL BWP or the initial UL BWP.
  • the random access channel at least includes a PRACH, a PDSCH carrying a random access response and/or a PDCCH for scheduling a random access response, and/or a random search space for random access response scheduling.
  • the first type of terminal switches to the second initial BWP.
  • the second UL BWP must include the PRACH, and the second DL BWP must include the random search space of the random access response.
  • the first type terminal determines the initial (initial) BWP where the corresponding random access channel is located as the target BWP, and switches from the current active (active) BWP to the target BWP.
  • the terminal switches to the initial UL BWP including PRACH. That is, in an implementation manner, the first type terminal should switch to the initial UL BWP including PRACH preferentially.
  • one initial (initial) DL BWP may contain system messages, and one initial (initial) DL BWP may contain paging messages.
  • the first type of terminal should preferentially switch to the initial DL BWP including the random search space. It can be seen from the above expression that: the manner of determining the uplink BWP and the manner of determining the downlink BWP may be executed independently, or may be executed together.
  • an embodiment of the present disclosure provides a BWP switching device, wherein the device includes:
  • the switching module 110 is configured to respond to a first type of terminal requiring random access, the first type of terminal switches from an activated BWP to an initial BWP, wherein the initial BWP is configured with a channel related to random access.
  • the BWP switching device may be included in the first type of terminal.
  • the channel related to random access refers to a channel used for random access.
  • the switching module 110 may be a program module; after the program module is executed by the processor, the terminal of the first type can be switched from an activated BWP to an initial BWP configured with a random access related channel.
  • the switching module 110 can be a combination of soft and hard modules, which can include various programmable arrays; the programmable arrays include but are not limited to: field programmable arrays and/or complex programmable array.
  • the switching module 110 may also be a pure hardware module; the pure hardware module includes but not limited to: an application specific integrated circuit.
  • the first type of terminal may be a terminal supporting a bandwidth smaller than a preset threshold, or a terminal of a predetermined type.
  • the first type of terminal may be any terminal that supports a bandwidth smaller than that of the second type of terminal.
  • the first type of terminal may be a reduced capability (RedCap) terminal, a machine communication type (Machine Communication Type, MTC) terminal, or a physical network (Internet of Things, IoT) terminal, etc.
  • the second type of terminal may include, but is not limited to: an ordinary terminal (called a Legacy UE or a non-RedCap UE) and an enhanced Mobile Broadband (eMBB) terminal.
  • an ordinary terminal called a Legacy UE or a non-RedCap UE
  • eMBB enhanced Mobile Broadband
  • the BWP switching method provided by the embodiments of the present disclosure is applied to a first type of terminal, and the active BWP configured by the first type of terminal is different from the initial BWP configured with a random access related channel.
  • the terminal when the first type of terminal loses uplink synchronization or needs to request uplink resources from the network, the terminal after completing the initial access needs random access due to various reasons. If the terminal of the first type has a demand for random access, it will switch from the active BWP currently working to the initial BWP of the relevant channel configured with random access. In this way, the current random access requirement of the first type of terminal can be met.
  • the related channels of random access may include: a resource scheduling channel for acquiring random access resources and/or a random access channel for performing random access, and the like.
  • the first type of terminal needs to perform random access, it reduces the random access failure caused by the first type of terminal switching from the current active BWP to the initial BWP of the relevant channel that is not configured with random access or the need to perform random access again.
  • the relevant channels of the random access include at least one of the following:
  • PDCCH for scheduling random access responses.
  • a random search space is further configured on the initial BWP, and the random search space is a set of candidate transmission resources of the PDCCH that schedules a random access response.
  • the switching module 110 is configured to switch from the activated BWP to the first initial BWP or the second initial BWP in response to the need for random access of the first type of terminal ;
  • the first initial BWP is the initial BWP of the first type of terminal
  • the second initial BWP is an initial BWP of a second type of terminal other than the first type of terminal, or the second initial BWP is an initial BWP configured for the first type and the second type of terminal.
  • the bandwidth supported by the first type of terminal is smaller than the bandwidth supported by the second type of terminal.
  • the first type of terminal includes at least: a reduced capability terminal RedCap terminal.
  • the terminal switches from the active BWP to the second initial BWP, and the second initial BWP is configured with PRACH and/or includes a random search space.
  • the activating the BWP includes: activating the uplink BWP, and/or, activating the downlink BWP;
  • the initial BWP includes: an initial uplink BWP and/or an initial downlink BWP.
  • the switching module 110 is configured to switch from the activated BWP to the configured There is an initial BWP on the channel associated with the random access.
  • An embodiment of the present disclosure provides a communication device, including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute the BWP switching method provided by any of the foregoing technical solutions.
  • the processor may include various types of storage media, which are non-transitory computer storage media, and can continue to memorize and store information thereon after the communication device is powered off.
  • the communication device may include at least the aforementioned first type of terminal.
  • the processor may be connected to the memory through a bus or the like, for reading the executable program stored on the memory, for example, at least one of the methods shown in FIG. 2 to FIG. 4 .
  • Fig. 7 is a block diagram of a terminal 800 according to an exemplary embodiment.
  • the terminal 800 may be a mobile phone, computer, digital broadcast user equipment, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, etc., and the terminal 800 may be at least the aforementioned first type of terminal.
  • the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816 .
  • the processing component 802 generally controls the overall operations of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802 .
  • the memory 804 is configured to store various types of data to support operations at the terminal 800 . Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, etc.
  • the memory 804 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power supply component 806 provides power to various components of the terminal 800 .
  • Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for terminal 800 .
  • the multimedia component 808 includes a screen providing an output interface between the terminal 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action.
  • the multimedia component 808 includes a front camera and/or a rear camera. When the terminal 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 810 is configured to output and/or input audio signals.
  • the audio component 810 includes a microphone (MIC), which is configured to receive an external audio signal when the terminal 800 is in an operation mode, such as a call mode, a recording mode and a voice recognition mode. Received audio signals may be further stored in memory 804 or sent via communication component 816 .
  • the audio component 810 also includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor component 814 includes one or more sensors for providing terminal 800 with various aspects of status assessment.
  • the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and the keypad of the terminal 800, and the sensor component 814 can also detect the position change of the terminal 800 or a component of the terminal 800 , the presence or absence of the user's contact with the terminal 800 , the orientation or acceleration/deceleration of the terminal 800 and the temperature change of the terminal 800 .
  • Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices.
  • the terminal 800 can access a wireless network based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wideband
  • Bluetooth Bluetooth
  • terminal 800 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, which can be executed by the processor 820 of the terminal 800 to complete the above method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

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Abstract

本公开实施例提供一种BWP切换方法及装置、通信设备及存储介质。所述带宽部分BWP切换方法，由第一类终端执行，所述方法包括：响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，其中，所述初始BWP配置有随机接入的相关信道。

Description

带宽可部分切换方法及装置、通信设备及存储介质 技术领域
本公开涉及无线通信技术领域但不限于无线通信技术领域，尤其涉及一种带宽部分(Bandwidth Part，BWP)切换方法及装置、通信设备及存储介质。
背景技术
不同类型的终端可能配置有不同的初始(initial)BWP和激活(active)BWP。初始BWP可包括：初始上行链路(Uplink，UL)BWP和初始下行链路(Downlink，DL)BWP。在初始BWP内配置有随机接入的相关信道。终端可以在初始BWP配置的随机接入的相关信道上进行随机接入。
终端当前工作在的激活(active)BWP可能不同于初始BWP。
发明内容
本公开实施例提供一种BWP切换方法及装置、通信设备及存储介质。
本公开实施例第一方面提供一种BWP切换方法，其中，由第一类终端执行，所述方法包括：响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，其中，所述初始BWP配置有随机接入的相关信道。
本公开实施例第二方面提供一种带宽部分BWP切换装置，其中，所述装置包括：
切换模块，被配置为响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，其中，所述初始BWP配置有随机接入的相关信道。
本公开实施例第三方面提供一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如前述第一方面提供的BWP切换方法。
本公开实施例第四方面提供一种计算机存储介质，所述计算机存储介质存储有可执行程序；所述可执行程序被处理器执行后，能够实现前述的第一方面提供的BWP切换方法。
本公开实施例提供的技术方案，若第一类终端当前工作的激活BWP不是配置有随机接入的相关信道的初始BWP，在有随机接入需求时，将切换到配置有随机接入的相关信道的初始BWP上，减少终端在多个初始BWP随意切换到的初始BWP未配置随机接入的相关信道的初始BWP进而导致的随机接入失败，或者需要重复进行BWP切换导致的随机接入延时到的问题，从而提升了随机接入的速率和成功率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开 实施例。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明实施例，并与说明书一起用于解释本发明实施例的原理。
图1是根据一示例性实施例示出的一种无线通信系统的结构示意图；
图2是根据一示例性实施例示出的一种BWP切换方法的流程示意图；
图3是根据一示例性实施例示出的一种BWP切换方法的流程示意图；
图4是根据一示例性实施例示出的一种BWP切换方法的流程示意图；
图5是根据一示例性实施例示出的一种BWP切换的示意图；
图6是根据一示例性实施例示出的一种BWP切换装置的结构示意图；
图7是根据一示例性实施例示出的一种通信设备的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明实施例相一致的所有实施方式。相反，它们仅是本发明实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开所使用的单数形式的“一种”、“”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
请参考图1，其示出了本公开实施例提供的一种无线通信系统的结构示意图。如图1所示，无线通信系统是基于蜂窝移动通信技术的通信系统，该无线通信系统可以包括：若干个UE11以及若干个接入设备12。
其中，UE11可以是指向用户提供语音和/或数据连通性的设备。UE11可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，UE11可以是物联网UE，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网UE的计算机，例如，可以是固定式、便携式、袖珍 式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)、移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程UE(remote terminal)、接入UE(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户UE(user equipment，UE)。或者，UE11也可以是无人飞行器的设备。或者，UE11也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线通信设备。或者，UE11也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
接入设备12可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通信系统也可以是5G系统，又称新空口(new radio，NR)系统或5G NR系统。或者，该无线通信系统也可以是5G系统的再下一代系统。其中，5G系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。或者，MTC系统。
其中，接入设备12可以是4G系统中采用的演进型接入设备(eNB)。或者，接入设备12也可以是5G系统中采用集中分布式架构的接入设备(gNB)。当接入设备12采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本公开实施例对接入设备12的具体实现方式不加以限定。
接入设备12和UE11之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
如图2所示，本公开实施例提供一种BWP切换方法，其中，由第一类终端执行，所述方法包括：
S210：响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，其中，所述初始BWP配置有随机接入的相关信道。
其中，所述随机接入的相关信道是指用于进行随机接入的信道。
在一些实施例中，该第一类终端可为支持带宽小于预设阈值的终端，或者为预定类型的终端。
在另一些实施例中，该第一类终端可为支持带宽小于第二类终端的任意终端。
示例性地，该第一类终端可为能力缩减型(RedCap)终端或者机械通信类型(Machine Communication Type，MTC)终端或者物理网(Internet of Things，IoT)终端等。所述第二类终端可包括但不限于：普通终端(称为Legacy UE或称为non-RedCap UE)增强移动宽带(enhanced Mobile Broadband，eMBB)终端。
本公开实施例提供的BWP切换方法是应用于第一类终端，且该第一类终端配置的激活BWP不同于配置有随机接入的相关信道的初始BWP。
示例性地，所述第一类型终端的上行失步或者需要向网络请求上行资源时，完成初始接入之后的终端有因各种原因需要的随机接入。如果第一类终端有随机接入需求时，会从当前工作的激活BWP切换到配置有随机接入的相关信道的初始BWP上。如此，可以满足第一类终端当前的随机接入需求。
此处的随机接入的相关信道可包括：获取随机接入资源的资源调度信道和/或执行随机接入的随机接入信道等。
如此，第一类终端在需要进行随机接入时，减少了第一类终端从当前激活BWP切换到未配置有随机接入的相关信道的初始BWP上而导致的随机接入失败或者需要重新进行BWP切换导致的随机接入延时大的问题。
在一些实施例中，所述第一类终端可以根据BWP的配置信息，确定配置有随机接入的相关信道的所述初始BWP。如图5所示，第一类终端可以从当前工作的激活BWP切换到配置有随机接入的相关信道的初始BWP上。
在一些实施例中，所述初始BWP的配置信息可以用于指示以下的至少一个参数：初始BWP自身的配置信息，初始BWP上的信道配置信息。其中，该信道配置信息可用于确定对应初始BWP上是否配置有随机接入的相关信道。
在另一些实施例中，考虑到第一类终端可能需要从多个初始BWP中选择配置有用于进行随机接入的相关信道的初始BWP进行随机接入，则可以通过初始BWP的配置信息显性或隐形的指示一个或几个初始BWP配置有用于进行随机接入的相关信道。其中显性指示是指：增加用于指示一个初始BWP是否配置有用于进行随机接入的相关信道的指示信息，该指示信息可采用新增的一个或多个比特进行指示，也可以是使用相关技术中的初始BWP的配置信息中的预留比特或者预留比特值来指示。采用这种方式，则无需逐个解析各个初始BWP上的信道配置信息，就能够知道某个或某几个初始BWP配置有用于进行随机接入的相关信道。其中隐性指示是指：根据通信协议或是配置，确定某个或某几个初始BWP配置有用于进行随机接入的相关信道。
在一些实施例中，所述随机接入的相关信道包括以下至少之一：
物理随机接入信道(Physical Random Access Channel，PRACH)；
承载随机接入响应的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)；
调度随机接入响应的物理下行控制信道(Physical Downlink Control Channel，PDCCH)。
物理随机信道可用于第一类终端发送随机接入请求。示例性地，所述PRACH上配置有一个或多个随机接入时机，第一类终端可以基于该随机接入时机发送随机接入请求。
本公开实施例中，所述第一类终端支持的随机接入方式可包括：4步随机接入进行随机接入，和/或，采用2步随机接入进行随机接入。
在一些实施例中，若第一类终端支持随机接入方式中的部分随机接入方式，则第一类终端将从激活BWP切换到包含第一类终端支持的随机接入方式对应的相关信道的初始BWP。
在本公开的所有实施例中，基站接收到随机接入请求之后，会向终端发送随机接入响应，而该 随机接入响应可以在PDSCH上发送，且随机接入响应的发送资源可以是通过PDCCH调度的，因此，本公开实施例中的所述随机接入的相关信道，可以包括：调度随机接入响应的调度资源PDCCH。
在一些实施例中，所述第一类终端切换到的初始BWP上还可配置有PDCCH的候选传输资源集合。该候选传输资源进集合即为所述随机搜索空间。若调度随机接入响应的PDCCH的候选传输资源集合位于该初始BWP上，则调度随机接入响应的PDCCH必然会被配置为该初始BWP上。因此，在某种意义上可以认为这是一种隐性指示。
如图3所示，本公开实施例提供一种BWP切换方法，其中，由第一类终端执行，所述方法包括：
S310：响应于所述第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到第一初始BWP，其中，所述第一初始BWP为对应于所述第一类终端的初始BWP。
所述第一初始BWP可为专门配置给第一类终端的初始BWP，且为配置有随机接入的相关信道的初始BWP。此处，该第一初始BWP可为第一类终端多个初始BWP中包含所述随机接入的相关信道的初始BWP。
所述第一初始BWP可为专门配置给第一类终端的初始BWP，第二类型终端无法使用该第一初始BWP。当然，根据实际网络情况，并不是所有的第一类型终端都被配置有专用的第一初始BWP。若第一类终端切换到第一初始BWP上，由于第一初始BWP是配置给第一类终端的初始BWP，该第一初始BWP的带宽是与第一类终端相适配的。
在一个实施例中，所述S310可包括：响应于第一类终端需要进行随机接入且针对第一类型终端配置有第一初始BWP，所述第一类终端从激活BWP上切换到第三初始BWP；其中，所述第三初始BWP为：所述第一初始BWP上配置有随机接入的相关信道的特定初始BWP。
在一些情况下，网络可能配置了配置有随机接入的相关信道的初始BWP，而第三初始BWP可为多个配置有随机接入的相关信道的初始BWP中的特定初始BWP。
该第三初始BWP可为：第一类终端根据网络指示确定的，或者根据通信协议确定的。
即，响应于该第一类终端确定有两个或两个以上的配置有随机接入的相关信道的第一初始BWP，所述第一类终端从所述两个或两个以上第一初始BWP中确定出第三初始BWP。
如图4所示，本公开实施例提供一种BWP切换方法，其中，由第一类终端执行，所述方法包括：
S410：响应于所述第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到第二初始BWP。
第二初始BWP为配置给第二类终端使用的初始BWP，或者，配置给第一类终端和第二类终端使用的初始BWP，第二类型终端为除第一类型终端之外的终端。
在一种实现方式中，第二类型终端为除第一类型终端之外任何类型的终端。示例性地，第二类终端支持的最大带宽可大于所述第一类终端的带宽。
第二初始BWP可为配置给第二类终端使用的初始BWP，或者，能够配置给第一类终端和第二类终端使用的初始BWP。
例如，第一类终端和第二类终端的随机接入的相关信道都可配置在相同的初始BWP上，此时， 第一类终端可以从当前激活BWP切换到第二类终端的专用初始BWP(即一种第二初始BWP)或者能够被第一类终端和第二类终端所共用的第二初始BWP上。
在一些实施例中，所述终端从激活BWP切换到第二初始BWP，其中，所述第二初始BWP配置有PRACH和/或包含随机搜索空间。
若第二初始BWP配置有PRACH，则第一类终端可以直接在该PRACH上发送随机接入请求；且，若第二初始BWP配置有随机搜索空间，则第一类终端切换到第二初始BWP上之后，可以通过随机搜索空间的监听，可以监听到网络侧对随机接入响应的调度。
在一些实施例中，所述激活BWP包括：激活上行BWP，和/或，激活下行BWP。激活上行BWP用于终端的上行传输；激活下行BWP用于终端的下行接收。
在一些实施例中，所述初始BWP包括：初始上行BWP，和/或，初始下行BWP。其中，初始上行BWP可以用于终端的初始上行接入和随机接入请求的发送等。其中，初始下行BWP可以用于终端的初始下行接入和/或系统消息的监听和/或寻呼消息的监听等。
在一些实施例中，所述响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，包括：
响应于所述第一类终端需要进行随机接入且所述第一类终端配置有两个或两个以上初始BWP，所述第一类终端从所述激活BWP切换到配置有所述随机接入的相关信道的初始BWP上。
此处的两个或两个以上初始BWP可包括：对应于所有类型终端的两个或两个以上初始BWP，或者，对应于第一类终端的两个或两个以上初始BWP。
若通信系统配置有两个或两个以上初始BWP时，则第一类终端有随机接入需求时，才需要从两个或两个以上初始BWP中选择配置有随机接入的相关信道的初始BWP。
随着RedCap终端的引入，支持针对RedCap终端配置单独的初始(initial)UL BWP。从网络的角度来看，系统中就存在两个或两个以上初始(initial)UL BWP。并且可能随机接入对应上行信道，例如PRACH，PUCCH，PUSCH等分别在两个初始(initial)UL BWP上。另外，在下行方向上，网络也可能针对RedCap终端配置单独的初始(initial)DL BWP。并且初始(initial)DL BWP的个数可能是一个或多个，不同的初始(initial)DL BWP可能包含了终端的不同的下行信道。例如有的初始(initial)DL BWP可能包含了系统消息，有的初始(initial)DL BWP可能包含了寻呼消息。有的下行信道可能只包含了随机接入相关的下行消息。
当存在多个初始(initial)UL BWP和/或者初始(initial)DL BWP时，此时应该如何设定BWP切换的方式还不确定。
有鉴于此，响应于第一类型终端需要进行随机接入，并且目前所监测的激活(active)BWP上未配置随机接入信道，终端切换到从当前的激活(active)BWP上切换到第一初始BWP或者第二初始BWP上。所述第一初始BWP是第一类终端专用的初始BWP，除第一类终端之前的其他终端可以不能使用第一初始BWP。第二初始BWP可为配置给第二类终端使用的初始BWP，或者，能够配置给第一类终端和第二类终端使用的初始BWP。
所述激活(active)BWP包含：激活(active)UL BWP或激活(active)DL BWP中的至少一种。所述第二初始BWP包括第一初始DL BWP或初始UL BWP中的至少一种。所述第二初始BWP包括第二初始DL BWP或初始UL BWP中的至少一种。所述随机接入信道至少包括PRACH，承载随机接入响应的PDSCH和/或，调度随机接入响应的PDCCH，和/或用于随机接入响应调度的随机搜索空间。
响应于给第一类终端配置了第二初始BWP，第一类终端切换到第二初始BWP上。
在这种情况下，要求第二UL BWP上必须包含PRACH，第二DL BWP上必须包含随机接入响应的随机搜索空间。
第一类型终端确定对应的随机接入信道所在的初始(initial)BWP为目标BWP，从当前的激活(active)BWP切换到目标BWP。
例如：在上行，系统中存在两个初始(initial)UL BWP，其中一个初始(initial)UL BWP包含PUSCH，另外一个初始(initial)UL BWP包含了PRACH。那么此时终端切换到包含PRACH的初始UL BWP中。即，在一种实现方式中，第一类型终端应优先切换到包含PRACH的初始UL BWP上。
又例如：在下行，例如系统中存在3个初始(initial)DL BWP，有一个初始(initial)DL BWP可能包含了系统消息，一个初始(initial)DL BWP可能包含了寻呼消息。有一个初始(initial)DL BWP含了随机接入响应的随机搜索空间，那么此时终端切换到包含随机搜索空间的初始(initial)DL BWP上。
即，在一种实现方式中，第一类型终端应优先切换到包含随机搜索空间的初始DL BWP上。由上述表述可知：确定上行BWP的方式和确定下行BWP的方式可以各自独立被执行，也可以一起被执行。
如图6所示，本公开实施例提供一种BWP切换装置，其中，所述装置包括：
切换模块110，被配置为响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，其中，所述初始BWP配置有随机接入的相关信道。
该BWP切换装置可包含在第一类终端中。
其中，所述随机接入的相关信道是指用于进行随机接入的信道。
在一些实施例中，该切换模块110可为程序模块；所述程序模块被处理器执行之后，能够实现第一类终端从激活BWP向配置有随机接入的相关信道的初始BWP的切换。
在一些实施例中，该切换模块110可为软硬结合模块，该软硬结合模块可包括各种可编程阵列；所述可编程阵列包括但不限于：现场可编程阵列和/或复杂可编程阵列。
在还有一些实施例中，该切换模块110还可为纯硬件模块；所述纯硬件模块包括但不限于：专用集成电路。
在一些实施例中，该第一类终端可为支持带宽小于预设阈值的终端，或者为预定类型的终端。
在另一些实施例中，该第一类终端可为支持带宽小于第二类终端的任意终端。
示例性地，该第一类终端可为能力缩减型(RedCap)终端或者机械通信类型(Machine Communication Type，MTC)终端或者物理网(Internet of Things，IoT)终端等。所述第二类终端可包括但不限于：普通终端(称为Legacy UE或称为non-RedCap UE)增强移动宽带(enhanced Mobile Broadband，eMBB)终端。
本公开实施例提供的BWP切换方法是应用于第一类终端，且该第一类终端配置的激活BWP不同于配置有随机接入的相关信道的初始BWP。
示例性地，所述第一类型终端的上行失步或者需要向网络请求上行资源时，完成初始接入之后的终端有因各种原因需要的随机接入。如果第一类终端有随机接入需求时，会从当前工作的激活BWP切换到配置有随机接入的相关信道的初始BWP上。如此，可以满足第一类终端当前的随机接入需求。
此处的随机接入的相关信道可包括：获取随机接入资源的资源调度信道和/或执行随机接入的随机接入信道等。
如此，第一类终端在需要进行随机接入时，减少了第一类终端从当前激活BWP切换到未配置有随机接入的相关信道的初始BWP上而导致的随机接入失败或者需要重新进行BWP切换导致的随机接入延时大的问题。
在一些实施例中，所述随机接入的相关信道包括以下至少之一：
PRACH；
承载随机接入响应的PDSCH；
调度随机接入响应的PDCCH。
在一些实施例中，所述初始BWP上还配置有随机搜索空间，所述随机搜索空间为所述调度随机接入响应的PDCCH的候选传输资源集合。
在一些实施例中，所述切换模块110，被配置为响应于所述第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到第一初始BWP或者第二初始BWP上；
其中，所述第一初始BWP为所述第一类终端的初始BWP；
所述第二初始BWP为所述第一类终端以外的第二类终端的初始BWP，或，所述第二初始BWP为所述第一类型和第二类终端配置的初始BWP。
在一些实施例中，所述第一类终端支持的带宽，小于所述第二类终端支持的带宽。
在一些实施例中，所述第一类终端至少包括：能力缩减终端RedCap终端。
在一些实施例中，所述终端从激活BWP切换到第二初始BWP，则所述第二初始BWP配置有PRACH和/或包含随机搜索空间。
在一些实施例中，所述激活BWP包括：激活上行BWP，和/或，激活下行BWP；
和/或，
所述初始BWP包括：初始上行BWP和/或初始下行BWP。
在一些实施例中，所述切换模块110，被配置为响应于所述第一类终端需要进行随机接入及配 置有多个初始BWP，所述第一类终端从所述激活BWP切换到配置有所述随机接入的相关信道的初始BWP上。
本公开实施例提供一种通信设备，包括：
用于存储处理器可执行指令的存储器；
处理器，分别存储器连接；
其中，处理器被配置为执行前述任意技术方案提供的BWP切换方法。
处理器可包括各种类型的存储介质，该存储介质为非临时性计算机存储介质，在通信设备掉电之后能够继续记忆存储其上的信息。
这里，所述通信设备可至少包括前述第一类终端。
所述处理器可以通过总线等与存储器连接，用于读取存储器上存储的可执行程序，例如，如图2至图4所示的方法的至少其中之一。
图7是根据一示例性实施例示出的一种终端800的框图。例如，终端800可以是移动电话，计算机，数字广播用户设备，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等，该终端800可至少为前述第一类终端。
参照图7，终端800可以包括以下一个或多个组件：处理组件802，存储器804，电源组件806，多媒体组件808，音频组件810，输入/输出(I/O)的接口812，传感器组件814，以及通信组件816。
处理组件802通常控制终端800的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件802可以包括一个或多个模块，便于处理组件802和其他组件之间的交互。例如，处理组件802可以包括多媒体模块，以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在终端800的操作。这些数据的示例包括用于在终端800上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件806为终端800的各种组件提供电力。电源组件806可以包括电源管理系统，一个或多个电源，及其他与为终端800生成、管理和分配电力相关联的组件。
多媒体组件808包括在所述终端800和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件808包括一个前置摄像头和/或后置摄像头。当终端800处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收 外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如，音频组件810包括一个麦克风(MIC)，当终端800处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中，音频组件810还包括一个扬声器，用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器，用于为终端800提供各个方面的状态评估。例如，传感器组件814可以检测到设备800的打开/关闭状态，组件的相对定位，例如所述组件为终端800的显示器和小键盘，传感器组件814还可以检测终端800或终端800一个组件的位置改变，用户与终端800接触的存在或不存在，终端800方位或加速/减速和终端800的温度变化。传感器组件814可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件814还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件816被配置为便于终端800和其他设备之间有线或无线方式的通信。终端800可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件816还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，终端800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器804，上述指令可由终端800的处理器820执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明的真正范围和精神由下面的权利要求指出。
应当理解的是，本发明并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。

Claims (20)

  1. 一种带宽部分BWP切换方法，其中，由第一类终端执行，所述方法包括：
    响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，其中，所述初始BWP配置有随机接入的相关信道。
  2. 根据权利要求1所述的方法，其中，所述随机接入的相关信道包括以下至少之一：
    物理随机接入信道PRACH；
    承载随机接入响应的物理下行共享信道PDSCH；
    调度随机接入响应的物理下行控制信道PDCCH。
  3. 根据权利要求1或2所述的方法，其中，所述初始BWP上还配置有随机搜索空间，所述随机搜索空间为所述调度随机接入响应的PDCCH的候选传输资源集合。
  4. 根据权利要求1至3任一项所述的方法，其中，所述响应于终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，包括：
    响应于所述第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到第一初始BWP或者第二初始BWP上；
    其中，所述第一初始BWP为所述第一类终端的初始BWP；
    所述第二初始BWP为所述第一类终端以外的第二类终端的初始BWP，或，所述第二初始BWP为所述第一类型和第二类终端配置的初始BWP。
  5. 根据权利要求4所述的方法，其中，所述第一类终端支持的带宽，小于所述第二类终端支持的带宽。
  6. 根据权利要求5所述的方法，其中，所述第一类终端至少包括：
    能力缩减终端RedCap终端。
  7. 根据权利要求4至6任一项所述的方法，其中，所述终端从激活BWP切换到第二初始BWP，则所述第二初始BWP配置有PRACH和/或包含随机搜索空间。
  8. 根据权利要求1至7任一项所述的方法，其中，所述激活BWP包括：激活上行BWP，和/或，激活下行BWP；
    和/或，
    所述初始BWP包括：初始上行BWP和/或初始下行BWP。
  9. 根据权利要求1至8任一项所述的方法，其中，所述响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到初始BWP上，包括：
    响应于所述第一类终端需要进行随机接入及配置有多个初始BWP，所述第一类终端从所述激活BWP切换到配置有所述随机接入的相关信道的初始BWP上。
  10. 一种带宽部分BWP切换装置，其中，所述装置包括：
    切换模块，被配置为响应于第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到 初始BWP上，其中，所述初始BWP配置有随机接入的相关信道。
  11. 根据权利要求11所述的装置，其中，所述随机接入的相关信道包括以下至少之一：
    物理随机接入信道PRACH；
    承载随机接入响应的物理下行共享信道PDSCH；
    调度随机接入响应的物理下行控制信道PDCCH。
  12. 根据权利要求10或11所述的装置，其中，所述初始BWP上还配置有随机搜索空间，所述随机搜索空间为所述调度随机接入响应的PDCCH的候选传输资源集合。
  13. 根据权利要求10至11任一项所述的装置，其中，所述切换模块，被配置为响应于所述第一类终端需要进行随机接入，所述第一类终端从激活BWP切换到第一初始BWP或者第二初始BWP上；
    其中，所述第一初始BWP为所述第一类终端的初始BWP；
    所述第二初始BWP为所述第一类终端以外的第二类终端的初始BWP，或，所述第二初始BWP为所述第一类型和第二类终端配置的初始BWP。
  14. 根据权利要求13所述的装置，其中，所述第一类终端支持的带宽，小于所述第二类终端支持的带宽。
  15. 根据权利要求14所述的装置，其中，所述第一类终端至少包括：
    能力缩减终端RedCap终端。
  16. 根据权利要求13至15任一项所述的装置，其中，所述终端从激活BWP切换到第二初始BWP，则所述第二初始BWP配置有PRACH和/或包含随机搜索空间。
  17. 根据权利要求10至16任一项所述的装置，其中，所述激活BWP包括：激活上行BWP，和/或，激活下行BWP；
    和/或，
    所述初始BWP包括：初始上行BWP和/或初始下行BWP。
  18. 根据权利要求10至17任一项所述的装置，其中，所述切换模块，被配置为响应于所述第一类终端需要进行随机接入及配置有多个初始BWP，所述第一类终端从所述激活BWP切换到配置有所述随机接入的相关信道的初始BWP上。
  19. 一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如权利要求1至9任一项提供的方法。
  20. 一种计算机存储介质，所述计算机存储介质存储有可执行程序；所述可执行程序被处理器执行后，能够实现如权利要求1至9任一项提供的方法。
PCT/CN2022/076234 2022-02-14 2022-02-14 带宽可部分切换方法及装置、通信设备及存储介质 WO2023151086A1 (zh)

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CN111279783A (zh) * 2017-10-24 2020-06-12 Lg电子株式会社 在无线通信系统中执行随机接入过程的方法和设备
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WO2022021326A1 (zh) * 2020-07-31 2022-02-03 北京小米移动软件有限公司 带宽资源复用方法及装置、通信设备及存储介质

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