WO2023083354A1 - 一种小区接入方法、装置、介质及终端 - Google Patents

一种小区接入方法、装置、介质及终端 Download PDF

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Publication number
WO2023083354A1
WO2023083354A1 PCT/CN2022/131764 CN2022131764W WO2023083354A1 WO 2023083354 A1 WO2023083354 A1 WO 2023083354A1 CN 2022131764 W CN2022131764 W CN 2022131764W WO 2023083354 A1 WO2023083354 A1 WO 2023083354A1
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Prior art keywords
cell
bwp
terminal
initial bwp
sib1
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PCT/CN2022/131764
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English (en)
French (fr)
Inventor
陈雷
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展讯通信（上海）有限公司
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Publication of WO2023083354A1 publication Critical patent/WO2023083354A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/165—Performing reselection for specific purposes for reducing network power consumption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Definitions

  • the embodiments of the present application relate to the communication field, and in particular to a cell access method, device, medium, and terminal.
  • a terminal device in the radio resource control (radio resource control, RRC) idle state (idle) needs to receive system information (system information, SI) in order to enter the radio resource control connected state (RRC-connected) according to the SI.
  • system information system information
  • the terminal device can receive the main system information block (mate information block, MIB) through the synchronization signal (synchronizing signal)/physical broadcast channel block (physical broadcast channel, PBCH) block .
  • the MIB contains the scheduling information of the system information block (SIB) 1.
  • the terminal device can receive the SIB1 on the physical downlink share control channel (PDSCH) according to the scheduling information in the MIB.
  • the SIB1 bears the On the initial (Initial) BWP.
  • SIB1 contains other system information (OSI) scheduling information, therefore, the terminal device can obtain the system information block concerned by the terminal device from the OSI received on the PDSCH according to the scheduling information in SIB1. According to the above system information block, the terminal device can perform RRC connection, and enter the RRC connected (connected) state from the RRC idle state.
  • OSI system information
  • the network equipment cannot guarantee that the The terminal switches to the initial (Initial) BWP. If the network device switches the terminal to the additional (Additional) BWP, because the additional BWP does not include SIB1, the terminal cannot receive SIB1. In the absence of SIB1, the channel quality in the cell deteriorates Finally, the cell loses synchronization, and the terminal will initiate a full-bandwidth, full-standard network search, which directly affects the efficiency of network search after the terminal loses the network, and affects user experience.
  • LTE long term evolution
  • NR new radio access technology
  • the purpose of the present invention is to provide a cell access method, device, medium and terminal to ensure that the terminal receives SIB1 in time, so that the terminal can choose a suitable cell to reside in and avoid frequent network search.
  • the present invention provides a method for accessing a cell, the method comprising: measuring the signal quality of the cell where the current camp is to obtain a measurement result; when the measurement result indicates that the signal quality of the cell where the current camp is not satisfied When the condition is set, the random access is triggered to switch to the initial BWP for data transmission, and to receive the system information block SIB1.
  • the beneficial effect of the cell access method provided by the present invention is that: in the above method, after the cell handover of the terminal occurs, when the measurement result indicates that the signal quality of the cell where the cell currently resides does not meet the preset conditions, the terminal actively switches to Try to send and receive data on the initial BWP, and obtain SIB1, so as to obtain the neighbor cell list, so that even if the cell suddenly loses synchronization and cannot be recovered, the terminal can use the neighbor cell list to find a suitable cell to camp on more quickly, so as to ensure the security of the terminal. Stability makes it easy for terminals to quickly restore services and improve user experience.
  • before triggering random access switching to the initial BWP for data transmission it also includes: judging whether the currently activated BWP of the bandwidth part is the initial BWP; if the currently activated BWP is not the initial BWP, triggering random access Access switches to the initial BWP for data transmission; if the currently activated BWP is not the initial BWP, and the currently activated BWP does not include SIB1, trigger random access to switch to the initial BWP for data transmission, and receive the system information block SIB1 .
  • the neighbor cell list can be obtained, so that even if the cell suddenly loses synchronization and cannot be recovered, the terminal can use the neighbor cell list to quickly find a suitable cell to camp on, so as to ensure the stability of the terminal, facilitate the terminal to quickly resume business, and improve the user experience. experience.
  • the method further includes: if the currently activated BWP is the initial BWP, receiving SIB1.
  • the neighbor cell list can be obtained, so that even if the cell suddenly loses synchronization and cannot be recovered, the terminal can use the neighbor cell list to quickly find a suitable cell to camp on, so as to ensure the stability of the terminal, facilitate the terminal to quickly resume business, and improve the user experience. experience.
  • the measurement result indicates that the signal quality of the cell currently camped on does not meet a preset condition, including: the measurement result indicates that a signal-to-noise ratio is smaller than a set threshold, or does not meet a camping condition.
  • the method before measuring the signal quality of the cell where the cell is currently camped on, it further includes: switching from the cell in the first communication system to the cell where the cell is camped on in the second communication system, the method may be applicable In the scene of switching between different systems.
  • an embodiment of the present invention further provides a communication device, and the device includes a module/unit for performing any one of the possible design methods of the second aspect above.
  • These modules/units can be realized by hardware, and can also be realized by executing corresponding software by hardware.
  • an embodiment of the present invention further provides a computer-readable storage medium, the computer-readable storage medium includes a computer program, and when the computer program runs on the terminal device, the terminal executes the above-mentioned first aspect. Any one of the possible design methods.
  • an embodiment of the present invention further provides a method including a computer program product, which, when the computer program product is run on a terminal, causes the terminal to execute any possible design of the first aspect above.
  • the embodiment of the present invention also provides a chip or a chip module, the chip or the chip module is coupled with the memory, and is used to execute the computer program stored in the memory, so that the terminal executes any of the above aspects.
  • a chip or a chip module is coupled with the memory, and is used to execute the computer program stored in the memory, so that the terminal executes any of the above aspects.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present invention
  • FIG. 2 is a schematic flow diagram of a cell access method provided by an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of another cell access method provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present invention.
  • the active BWP after the handover is not the initial BWP
  • the current BWP may not have SIB1, resulting in failure to receive SIB1; or, even if the active BWP after handover is the initial BWP,
  • the search space SIB1 (SearchSpaceSIB1) is set to Omitted, or the dedicated SIB1-delivery (dedicatedSIB1-Delivery) parameter has not been configured on the network side
  • the terminal cannot receive SIB1, and cannot obtain OSI from SIB1. It is also impossible to obtain the neighbor list.
  • the present invention provides a cell access scheme.
  • a terminal switches from a cell in the first communication system to a cell in the second communication system, due to the cell switching, and the channel of the switched cell
  • the terminal can actively switch to try to send and receive data on the initial BWP, and at the same time obtain SIB1 to obtain the neighbor cell list, so that even if the cell suddenly loses synchronization and cannot be recovered, the terminal can use the neighbor cell list to find it faster Camp in a suitable cell to ensure the stability of the terminal, facilitate quick service recovery, and improve user experience.
  • a and/or B may indicate: A exists alone, A and B exist simultaneously, In the case of B alone, A and B may be singular or plural.
  • the character "/" generally indicates that the contextual objects are an "or" relationship.
  • references in this specification to "one embodiment” or “some embodiments” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention.
  • appearances of the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” and “in other embodiments” in various places in this specification are not necessarily all References to the same embodiment mean “one or more but not all” unless specifically stated otherwise.
  • the terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless specifically stated otherwise.
  • the term “connected” includes both direct and indirect connections, unless otherwise stated. "First” and “second” are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the word “exemplarily” or “for example” is used to represent an example, illustration or description. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present invention shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of the words “exemplarily” or “for example” is intended to present related concepts in a concrete manner.
  • the invention will present various aspects, embodiments or features in terms of a system that may include a number of devices, components, modules. It is to be understood and appreciated that the various systems may include additional devices, components, modules and/or may not include all of the devices, components, modules discussed in connection with the figures. Additionally, combinations of these schemes can also be used.
  • various communication systems may be long term evolution (long term evolution, LTE) system, worldwide interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, fifth generation (5th Generation, 5G ) system, the future communication system.
  • the 5G system may be a new generation radio access technology (new radio access technology, NR)
  • the future communication system may be a sixth generation (6th Generation, 6G) system.
  • Part of the scenarios in the embodiments of the present invention are described by taking the scenario of the NR network in the wireless communication network as an example. It should be pointed out that the solutions in the embodiments of the present invention can also be applied to other wireless communication networks, and the corresponding names can also be used in other The name of the corresponding function in the wireless communication network is replaced.
  • the SSB in the present invention is a synchronizing signal (synchronizing signal)/physical broadcast channel block (physical broadcast channel, PBCH) block, that is, the SSB is an SS/PBCH block. That is to say, in the present invention, SSB and SS/PBCH block can replace each other.
  • synchronizing signal synchronizing signal
  • PBCH physical broadcast channel
  • the NR frequency band is wider than the LTE frequency band, according to the current spectrum division method, the NR frequency band is at least 100MHz, and different terminal devices have different radio frequency capabilities and can support different maximum bandwidths, so the concept of BWP is introduced.
  • BWP Band-WP
  • the initial BWP refers to: when the terminal equipment accesses a cell or a broadband carrier from the RRC-idle state, the BWP when the terminal equipment initially accesses.
  • the initial BWP can also be understood as: the bandwidth at the location of the SIB1 indicated by the MIB broadcast in the SSB can be defined as the initial BWP.
  • the terminal device can obtain SIB1 and other system information (OSI), and can monitor paging messages.
  • OSI system information
  • the network device schedules the terminal device from the initial BWP to a BWP whose bandwidth matches the service.
  • This BWP is called an active BWP.
  • SI System information
  • OSI may include all SIBs except SIB1, for example, OSI may include SIB2-SIB14.
  • SIBs carry different parameters and have different functions. For example, it may include information related to cell reselection, Public Warning System (PWS), timing (for example, (Global Positioning System, globalpositioning system, GPS) time, Coordinated Universal Time (UTC) etc.), V2X services (for example, SL sending resource pool, SL receiving resource pool, SL configuration information, etc.) or positioning related system information.
  • PWS includes ETWS (Earthquake and Tsunami Warning System, earthquake and tsunami warning system) notification or CMAS (Commercial Mobile Alert Service, public mobile warning service) notification, etc.
  • SIB1 may carry scheduling information of other SIBs.
  • SIBs For example, the mapping relationship between SIB and SI message, the window length of SI message (for example, SI-windowlength), and the cycle of SI message; wherein, the cycle of SI message refers to the interval between the repeated appearance of the window of each SI message, that is, appears twice The window interval of the same SI message; the window length of the SI message refers to the window length of each SI message, and the window length of the SI messages under one network device may be the same.
  • SIB1 may also include configuration information indicating whether each SIB is always broadcast or provided on-demand, and when requesting system information, such as preamble and/or resource configuration. SIB1 can also be called system information block type1.
  • the terminal does not care about all the SIBs in the OSI, but may only care about some SIBs in the OSI, that is, it only cares about the SIBs related to itself.
  • the common search space may include search spaces for paging, random access (RA), SIB1, and other SI (other SI).
  • the terminal device cannot receive MSG2 sent by the network device on the BWP, that is, it cannot obtain the SI message based on the random access process. That is to say, there is no public search space configured on the BWP where the terminal device in the connected state works, and the process of requesting system information (on demand SI) based on random access cannot be implemented.
  • the terminal device cannot receive the SIB1 broadcast by the network device on the BWP.
  • the terminal device cannot receive the other SI broadcast by the network device on the BWP.
  • the terminal device cannot receive paging on the BWP.
  • FIG. 1 shows a schematic diagram of a communication system applicable to a cell access method according to an embodiment of the present invention.
  • the communication system 100 includes a network device 102 and a terminal 106.
  • the network device 102 may be configured with one or more antennas, and the terminal may also be configured with one or more antennas.
  • the communication system may further include a network device 104, and the network device 104 may also be configured with multiple antennas.
  • the network device 102 or the network device 104 may also include multiple components related to signal transmission and reception.
  • the multiple components related to signal sending and receiving may include at least one of a processor, a modulator, a multiplexer, a demodulator, or a demultiplexer.
  • the network device is a device with a wireless transceiver function or a chip that can be set on the device, and the device includes but is not limited to: an evolved Node B (evolved Node B, eNB), a radio network controller (radio network controller, RNC) , Node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station, baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity , WIFI) system access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), can also be 5G, such as, NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitute
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio unit (radio unit, RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements wireless link Functions of the radio link control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layers.
  • the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network devices in the access network RAN, and the CU can also be divided into network devices in the core network CN, which is not limited here.
  • Terminal 106 may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal in the embodiment of the present invention can be mobile phone (mobile phone), tablet computer (Pad), smart printer, train detector, gas station detector, computer with wireless transceiver function, virtual reality (virtual reality, VR) terminal , augmented reality (augmented reality, AR) terminal, wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, smart grid ), wireless terminals in transportation safety, wireless terminals in smart city, and wireless terminals in smart home.
  • the embodiments of the present invention do not limit the application scenarios.
  • the aforementioned terminal 106 and the chips that can be disposed on the aforementioned terminal 106 are collectively referred to as a terminal.
  • Both network device 102 and network device 104 can communicate with multiple terminals. In a possible implementation manner, both the network device 102 and the network device 104 may communicate with the terminal 106 shown in the figure. Network device 102 and network device 104 may communicate with any number of terminals similar to terminal 106 . However, it should be understood that the terminal communicating with the network device 102 and the terminal communicating with the network device 104 may be the same or different.
  • the terminal 106 shown in FIG. 1 can communicate with the network device 102 and the network device 104 at the same time, but this only shows a possible scenario, and in some scenarios, the terminal may only communicate with the network device 102 or the network device 104 , the present invention does not limit it.
  • FIG. 1 is only a simplified schematic diagram for easy understanding, and the communication system may also include other network devices or other terminals, which are not shown in FIG. 1 .
  • An embodiment of the present invention provides a cell access method, which can be executed by a terminal.
  • the terminal in the following content of the present invention can be the terminal 106 shown in FIG. 1 , and the network device in the following content can be as shown in FIG. 1 The network device 102 shown.
  • the steps performed by the terminal may also be specifically performed by a module or component of the terminal, for example, may be performed by a chip in the terminal.
  • the following embodiments are described with the terminal as the execution subject.
  • FIG. 2 it shows a cell access method provided by an embodiment of the present invention, the method includes:
  • the channel quality of the NR cell deteriorates, for example, the signal-to-noise ratio (Signal to Noise Ratio, SNR) is less than the set threshold, or does not meet the cell residence conditions (such as camping).
  • SNR Signal to Noise Ratio
  • the remaining conditions include: successfully read the system information of the cell and meet the cell selection S criteria), at this time, if the currently activated BWP is a non-initial BWP, such as additional (Additional) BWP, the terminal may not be able to receive SIB1 . Therefore, random access needs to be triggered to switch to the initial BWP for data transmission.
  • the terminal initiates random access on the Initial BWP, and the network will switch both the uplink and downlink BWPs to the Initial BWP accordingly, which can ensure the continuity of receiving data, and at the same time switch from the currently activated BWP to the Initial BWP for business.
  • Replacing the BWP will also improve the sending and receiving of terminal data, because SIB1 contains other system information (OSI) scheduling information, and then the terminal obtains the neighbor cell list from OSI. After losing synchronization, the terminal can firstly find a suitable cell to initiate registration from the neighbor cell list obtained from the OSI, so as to restore services as quickly as possible and provide users with a better experience.
  • OSI system information
  • the terminal when the terminal performs the above S202, when the measurement result indicates that the signal quality of the cell where it is currently camping does not meet the preset condition, even if the currently activated BWP is a non-initial BWP, the terminal can continue to judge Whether the currently activated BWP includes SIB1, if the currently activated BWP includes SIB1, the terminal receives SIB1; if the currently activated BWP does not include SIB1, it triggers random access switching to the initial BWP for data transmission and receiving SIB1.
  • the terminal executes the above S202, after the terminal determines that the channel quality of the cell where it is camped on has deteriorated, it can continue to judge whether the network side provides candidate BWP or candidate cell, and whether to configure dedicatedSIB1-Delivery Parameters, according to different judgment results, there may be different situations as follows.
  • the terminal needs to continue to determine whether the currently activated BWP is not the initial BWP, that is, execute the above S203 to S204.
  • the terminal can SearchSpaceSib1 configuration information, actively receive SIB1, and subsequently request OSI to help the terminal understand the status of neighboring cells and select the optimal cell for the terminal.
  • the terminal can SearchSpaceSib1 configuration information, actively receive SIB1, and subsequently request OSI to help the terminal understand the status of neighboring cells and select the optimal cell for the terminal.
  • the current active BWP of the terminal is an additional (Additional) BWP, if SIB1 is within the active (active) BWP, the configuration of SearchSpaceSib1 will be ignored and SIB1 will be received normally; if SIB1 is outside the active BWP, the terminal will not be able to receive To SIB1, at this time, the terminal actively triggers random access to switch to InitialBWP to receive SIB1, and at the same time, it can ensure that the uplink and downlink DCI is not lost.
  • FirstActBWP is configured with SearchSpaceSib1 after the LTE switches to NR, and the terminal needs to receive SIB1 according to the protocol.
  • the terminal actively triggers random access to switch to InitialBWP to receive SIB1, and at the same time, it can ensure that the uplink and downlink DCI is not lost. In this way, after the terminal switches to InitialBWP, after receiving SIB1 and obtaining the neighbor cell list from OSI, the cell continues to deteriorate. Quickly restore business.
  • the network side does not provide candidate BWPs or candidate cells, and does not configure
  • the dedicatedSIB1-Delivery parameter is used, if the currently activated BWP is a non-initial BWP, such as an additional (Additional) BWP, the terminal may not be able to receive SIB1, and the terminal will actively switch to the initial BWP to try to send and receive data and obtain SIB1.
  • the terminal when the terminal executes the above S202, after the terminal determines that the channel quality of the cell where it is camped on has deteriorated, it can continue to judge whether the network side provides candidate BWP or candidate cell, and whether to configure the dedicatedSIB1-Delivery parameter and SearchSpaceSIB1 parameter, if the network side does not provide candidate BWP or candidate cell, and does not configure dedicatedSIB1-Delivery parameter, the terminal needs to continue to judge whether the currently activated BWP is not the initial BWP; if the network side provides candidate BWP or candidate cell, configure dedicatedSIB1 When any one of the -Delivery parameters is satisfied, the terminal can receive SIB1.
  • S302. Determine whether the SNR is greater than or equal to a set threshold, and whether the network side provides a candidate BWP or a candidate cell and whether a dedicatedSIB1-Delivery parameter is configured. If not, perform S303; otherwise, do not process.
  • the terminal may continue to judge whether the currently activated BWP includes the SIB1, if yes, execute S305, otherwise execute S306.
  • the terminal triggers a random access handover to the initial BWP to perform data transmission and receive SIB1.
  • the terminal actively receives the SIB1.
  • the terminal can then obtain the neighbor cell list from the OSI.
  • the terminal can first find a suitable cell to initiate registration from the neighbor cell list obtained from the OSI, and recover as quickly as possible. business and provide users with a better experience.
  • the embodiment of the present invention further provides a communication device, and the communication device 400 is configured to realize the function of the terminal in the above method.
  • the communication device 400 may be a terminal, or may be a device in a terminal.
  • the device may be a system on a chip.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the communication device 400 includes a measuring unit 401, a judging unit 402, a switching unit 403, and a receiving unit 404, wherein:
  • a judging unit 402 configured to judge whether the signal quality of the cell currently camped on indicated by the measurement result satisfies a preset condition
  • the switching unit 403 is configured to trigger random access switching to the initial BWP for data transmission when the measurement result indicates that the signal quality of the cell where the cell is currently camped on does not meet the preset condition.
  • the receiving unit is configured to receive SIB1 on the initial BWP.
  • the judging unit 402 before triggering random access switching to the initial BWP for data transmission, is further configured to: judge whether the currently activated bandwidth part BWP is the initial BWP;
  • the switching unit 403 is specifically configured to: if the currently activated BWP is not the initial BWP, trigger random access to switch to the initial BWP for data transmission.
  • the switching unit 403 is specifically configured to: if the currently activated BWP is not the initial BWP, and the currently activated BWP does not include SIB1, trigger a random access switch to the initial BWP for data transmission.
  • the receiving unit 404 is configured to directly receive the SIB1 if the currently activated BWP is the initial BWP.
  • the measurement result indicates that the signal quality of the cell currently camped on does not meet a preset condition, including: the measurement result indicates that a signal-to-noise ratio is smaller than a set threshold, or does not meet a camping condition.
  • the switching unit 403 before measuring the signal quality of the cell where the cell is currently camped on, is further configured to: switch from a cell in the first communication system to the cell where the cell is camped on in the second communication system .
  • the division of modules in the embodiments of the present invention is schematic, and is only a logical function division. In actual implementation, there may be other division methods.
  • each functional module in each embodiment of the present invention can be integrated into a processing In the controller, it can also be physically present separately, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.
  • the communication device 500 includes at least one processor 510 , a memory 520 , and a communication interface 530 . Wherein, a computer program is stored in the memory 520 .
  • the memory 520 is coupled to the processor 510 .
  • the coupling in the embodiments of the present invention is an interval coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the memory 520 may also be located outside the communication device 500 .
  • the processor 510 can cooperate with the memory 520 .
  • the processor 510 can invoke computer programs stored in the memory 520. At least one of the at least one memory may be included in the processor.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or Execute the methods, steps and logic block diagrams disclosed in the embodiments of the present invention.
  • the general processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk drive (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), and may also be a volatile memory (volatile memory).
  • the volatile memory may be a random-access memory (random-access memory, RAM).
  • RAM random-access memory
  • a memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in the embodiment of the present invention may also be a circuit or any other device capable of implementing a storage function, and is used for storing computer programs and/or data.
  • the methods provided in the embodiments of the present invention may be fully or partially implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment or other programmable devices.
  • the computer instructions may be stored in, or transmitted from, one computer-readable storage medium to another computer-readable storage medium. In a possible implementation, the computer instructions may be sent from a website, computer, server or data center via wire.
  • the wired connection may be coaxial cable, optical fiber or digital subscriber line (digital subscriber line, DSL for short), or, the computer instruction may be transmitted from a website site, computer, server or data center Wireless transmission to another website site, computer, server, or data center.
  • the wired connection may be infrared, wireless or microwave.
  • the computer-readable storage medium may be any medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more media.
  • the medium may be a magnetic medium, an optical medium, or a semiconductor medium.

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Abstract

本发明提供了一种小区接入方法、装置、介质和终端，该方法可以应用于终端，该方法包括：测量当前所驻留小区的信号质量，得到测量结果；当测量结果指示所述当前所驻留小区的信号质量不满足预设条件时，触发随机接入切换到初始BWP上进行数据传输，以及接收SIB1，该方法用以确保终端及时接收SIB1，以便于终端选择合适的小区驻留，避免频繁找网。

Description

一种小区接入方法、装置、介质及终端
本申请要求于2021年11月12日提交中国专利局、申请号为CN202111341560.X、申请名称为“一种小区接入方法、装置、介质及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信领域，尤其涉及一种小区接入方法、装置、介质及终端。
背景技术
随着通信技术的发展，第五代(5th generation，5G)通信系统被广泛研究，以实现大容量、高速率的传输需求。
当前，处于无线资源控制(radio resource control，RRC)空闲态(idle)的终端设备，需要接收系统信息(system information，SI)，才能根据SI进入无线资源控制连接态(RRC-connected)。具体地，在引入带宽部分(bandwidth part，BWP)之后，终端设备可以通过同步信号(synchronizing signal)/物理广播信道块(physical broadcast channel，PBCH)块接收主系统信息块(mater information block，MIB)。MIB中包含系统信息块(system information block，SIB)1的调度信息，终端设备可以根据MIB中的调度信息，在物理下行共享控制信息(physical downlink share control channel，PDSCH)上接收SIB1，通常SIB1承载于初始(Initial)BWP上。SIB1中包含其他系统消息(other system information，OSI)的调度信息，因此，终端设备可以根据SIB1中的调度信息，在PDSCH上接收的OSI中获取终端设备所关心的系统信息块。根据上述系统信息块，终端设备可以进行RRC连接，从RRC空闲状态进入RRC连接(connected)状态。
但是，当终端发生小区切换时，例如终端从长期演进(long term evolution，LTE) 小区切换到新一代无线接入技术(new radio access technology，NR)小区的这种场景，网络设备无法保证会将终端切换到初始(Initial)BWP上，如果网络设备将终端切换到附加(Additional)BWP上，因附加BWP不包括SIB1，导致终端无法接收到SIB1，在没有SIB1的情况下，在小区信道质量恶化后，小区失步，终端会发起全带宽、全制式找网，直接影响终端丢网后找网的效率，影响用户体验。
因此，亟需提供一种小区接入方案来改善上述问题。
发明内容
本发明的目的在于提供一种小区接入方法、装置、介质及终端，用以确保终端及时接收SIB1，以便于终端选择合适的小区驻留，避免频繁找网。
第一方面，本发明提供一种小区接入方法，该该方法包括：测量当前所驻留小区的信号质量，得到测量结果；当测量结果指示所述当前所驻留小区的信号质量不满足预设条件时，触发随机接入切换到初始BWP上进行数据传输，以及接收系统信息块SIB1。
本发明提供的小区接入方法的有益效果在于：上述方法中，在终端发生小区切换后，当测量结果指示所述当前所驻留小区的信号质量不满足预设条件时，终端通过主动切换到初始BWP上尝试收发数据，以及获取SIB1，从而获取邻区列表，这样即使小区突然发生失步无法恢复，终端也可以利用邻区列表更快地寻找到合适的小区进行驻留，以保证终端的稳定性，便于终端快速恢复业务，提高用户体验。
在一种可能的实施例中，触发随机接入切换到初始BWP上进行数据传输之前，还包括：判断当前激活的带宽部分BWP是否为初始BWP；若当前激活的BWP不是初始BWP，则触发随机接入切换到初始BWP上进行数据传输；若当前激活的BWP不是初始BWP，且当前激活的BWP中不包括SIB1，则触发随机接入切换到初始BWP上进行数据传输，以及接收系统信息块SIB1。从而获取邻区列表，这样即使小区突然发生失步无法恢复，终端也可以利用邻区列表更快地 寻找到合适的小区进行驻留，以保证终端的稳定性，便于终端快速恢复业务，提高用户体验。
在一种可能的实施例中所述方法还包括：若当前激活的BWP是初始BWP，则接收SIB1。从而获取邻区列表，这样即使小区突然发生失步无法恢复，终端也可以利用邻区列表更快地寻找到合适的小区进行驻留，以保证终端的稳定性，便于终端快速恢复业务，提高用户体验。
在一种可能的实施例中，测量结果指示所述当前所驻留小区的信号质量不满足预设条件，包括：测量结果指示信噪比小于设定阈值，或者不符合驻留条件。
在一种可能的实施例中，所述测量当前所驻留小区的信号质量之前，还包括：从第一通信系统中的小区切换至第二通信系统的所述驻留小区，该方法可以适用于异系统切换的场景。
第二方面，本发明实施例还提供一种通信装置，该装置包括执行上述第二方面的任意一种可能的设计的方法的模块/单元。这些模块/单元可以通过硬件实现，也可以通过硬件执行相应的软件实现。
第三方面，本发明实施例提供一种终端，包括处理器和存储器。其中，存储器用于存储一个或多个计算机程序；当存储器存储的一个或多个计算机程序被处理器执行时，使得该终端能够实现上述第一方面的任意一种可能的设计的方法。
第四方面，本发明实施例中还提供一种计算机可读存储介质，所述计算机可读存储介质包括计算机程序，当计算机程序在终端设备上运行时，使得所述终端执行上述第一方面的任意一种可能的设计的方法。
第五方面，本发明实施例还提供一种包含计算机程序产品，当所述计算机程序产品在终端上运行时，使得所述终端执行上述第一方面的任意一种可能的设计的方法。
第六方面，本发明实施例还提供一种芯片或芯片模组，芯片或芯片模组与存储器耦合，用于执行所述存储器中存储的计算机程序，使得所述终端执行上述任 一方面的任意一种可能的设计的方法。
关于上述第二方面至第六方面的有益效果可以参见上述第一方面中的描述。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本发明实施例提供的一种通信系统架构示意图；
图2为本发明实施例提供的一种小区接入方法流程示意图；
图3为本发明实施例提供的另一种小区接入方法流程示意图；
图4为本发明实施例提供的一种通信装置示意图；
图5为本发明实施例提供的一种终端结构示意图。
具体实施方式
目前，当终端从LTE小区切换到NR小区后，如果终端当前切换后的激活BWP不是初始BWP，则当前BWP可能不存在SIB1，导致无法接收到SIB1；或者，即使切换后激活BWP是初始BWP，但是搜索空间SIB1(SearchSpaceSIB1)被置为空(Omitted)，或者网络侧也一直没有配置专用SIB1-传输(dedicatedSIB1-Delivery)参数，那么终端也无法接收SIB1，也就无法从SIB1中获取OSI，自然也就无法得到邻区列表。这种场景下，一旦终端进入小区边缘覆盖或信号被遮挡，或者终端处于高速运行场景下，小区的信号质量会迅速恶化，小区发生失步，终端就无法快速地寻找到适合的小区进行驻留，这样终端就不得不启动全制式、全带宽找网。因全制式、全带宽找网存在找网速度慢，搜网期间终端无法正常使用的缺陷，所以会极大的影响用户体验。
为了解决上述问题，本发明提供一种小区接入方案，该方案中，当终端从第 一通信系统中的小区切换至第二通信系统的小区，因进行小区切换，且切换后的小区的信道环境发生恶化，终端能够主动切换到在初始BWP上尝试收发数据，同时还可以获取SIB1，从而获取邻区列表，这样即使小区突然发生失步无法恢复，终端也可以利用邻区列表更快地寻找到合适的小区进行驻留，以保证终端的稳定性，便于快速恢复业务，提高用户体验。
下面结合本发明实施例中的附图，对本发明实施例中的技术方案进行描述。其中，在本发明实施例的描述中，以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本发明的限制。如在本发明的说明书和所附权利要求书中所使用的那样，单数表达形式“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。还应当理解，在本发明以下各实施例中，“至少一个”、“一个或多个”是指一个或两个以上，两个以上也包含两个。术语“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系；一种可能的实施例中，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A、B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。
在本说明书中描述的参考“一个实施例”或“一些实施例”意味着在本发明的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。术语“连接”包括直接连接和间接连接，除非另外说明。“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。
在本发明实施例中，“示例性地”或者“例如”词用于表示作例子、例证或说明。 本发明实施例中被描述为“示例性地”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性地”或者“例如”词旨在以具体方式呈现相关概念。
本发明将围绕可包括多个设备、组件、模块的系统来呈现各个方面、实施例或特征。应当理解和明白的是，各个系统可以包括另外的设备、组件、模块，并且/或者可以并不包括结合附图讨论的所有设备、组件、模块。此外，还可以使用这些方案的组合。
本发明实施例的技术方案可以应用于各种通信系统。一种可能的实施例中，各种通信系统可以是长期演进(long term evolution，LTE)系统，全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统，第五代(5th Generation，5G)系统，未来的通信系统。一种可能的实施例中，5G系统可以是新一代无线接入技术(new radio access technology，NR)，未来的通信系统可以是第六代(6th Generation，6G)系统。本发明实施例中部分场景以无线通信网络中NR网络的场景为例进行说明，应当指出的是，本发明实施例中的方案还可以应用于其他无线通信网络中，相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。
以下先对下文中涉及的部分用语进行解释说明，以便于本领域技术人员理解。
(1)SSB
本发明中的SSB为同步信号(synchronizing signal)/物理广播信道块(physical broadcast channel，PBCH)块，即SSB为SS/PBCH block。也就是说，在本发明中，SSB与SS/PBCH block可以相互替换。
(2)带宽部分(bandwidth part，BWP)
由于NR频段相较于LTE频段比较宽，按照当前的频谱划分方式，NR的频段至少为100MHz，而不同终端设备的射频能力不同，所能支持的最大带宽不同，因此引入BWP的概念。通过在一个宽带上为终端设备分配部分频谱使用，可以 适应终端设备所能支持的带宽。并且，通过为终端设备配置多种不同带宽的BWP，可以实现对终端设备的灵活调度以及终端设备的节能。
(3)初始(initial)BWP
初始BWP指的是：终端设备从RRC-idle状态接入一个小区或者一个宽带载波时，终端设备初始接入时的BWP。或者，初始BWP也可以理解为：SSB中广播的MIB所指示的SIB1所在位置的带宽，可以定义为初始BWP。在初始BWP上终端设备可以获取SIB1，以及其他系统消息(other system information，OSI)，并且可以监听寻呼消息。
(4)激活BWP
当终端设备有业务到达时，网络设备将终端设备从初始BWP调度到一个带宽和其业务相匹配的BWP上，这个BWP就称为激活BWP。
根据当前标准，激活BWP上配置有类型(Type)0A以及Type2类型的物理下行控制信息(Physical downlink control channel，PDCCH)公共搜索空间(common search space)，即，终端设备可以在当前激活BWP上接收寻呼消息。
(5)系统信息(system information，SI)
SI可以包括最小系统消息(minimum system information，MSI)和其他系统消息(other system information，OSI)。
其中，OSI可以包括除SIB1外的所有SIB，比如，OSI可以包括SIB2～SIB14。不同的SIB携带不同的参数，具备不同的功能。例如，可能包括用于小区重选、公共预警信息(Public Warning System，PWS)，定时(例如，(全球定位系统，globalpositioning system，GPS)时间、世界协调时间(Coordinated Universal Time，UTC)相关的信息等)、V2X业务(例如，SL发送资源池、SL接收资源池、SL配置信息等)或定位等相关的系统信息。其中PWS包括ETWS(Earthquake and Tsunami Warning System，地震和海啸预警系统)通知或CMAS(Commercial Mobile Alert Service，公共移动警告服务)通知等。
SIB1可携带其他SIB的调度信息。例如，SIB到SI消息的映射关系、SI消息的窗口长度(例如，SI-windowlength)、SI消息的周期；其中，SI消息的周期指每个SI消息的窗口重复出现的间隔，即出现两次相同SI消息的窗口的间隔；SI消息的窗口长度指每个SI消息的窗口长度，一个网络设备下的SI消息的窗口长度可以是相同的。SIB1中还可以包括指示各个SIB是一直广播的还是为按需(on-demand)提供的，以及请求系统信息时所需要的配置信息，例如前导码和/或资源配置等。SIB1也可称为system information block type1。
需要说明的是，本发明中的系统信息可能是SI消息，也可能是SIB。也就是说，本发明中下文中所描述的系统信息可以包括SI消息，或者也可包括SIB。
应理解，对于某一终端来讲，终端并不关心OSI中的所有SIB，而可能只关心OSI中的部分SIB，即只关心与自己有关的SIB。
(6)公共搜索空间
公共搜索空间可包括用于寻呼、随机接入(random access，RA)、SIB1、其它SI(other SI)的搜索空间。
若BWP上未配置用于随机接入的搜索空间(例如，没有ra-SearchSpace)，则终端设备不能在该BWP上接收网络设备发送的MSG2，即不能基于随机接入过程获取到SI消息。也就是说，处于连接态的终端设备工作的BWP上未配置公共搜索空间，不能实现基于随机接入的方式按需请求系统信息(on demand SI)的过程。
若BWP上未配置用于SIB1的搜索空间(例如，没有searchSpaceSIB1)，则终端设备不能在该BWP上接收网络设备广播的SIB1。
若BWP上未配置用于other SI的搜索空间(例如，没有searchSpaceOtherSystemInformation)，则终端设备不能在该BWP上接收网络设备广播的other SI。
若BWP上未配置用于寻呼的搜索空间(例如，没有pagingSearchSpace)，则 终端设备不能在该BWP上接收寻呼。
为便于理解本发明实施例，首先以图1中示出的通信系统为例详细说明适用于本发明实施例的通信系统。图1示出了适用于本发明实施例的小区接入方法的通信系统的示意图。如图1所示，该通信系统100包括网络设备102和终端106，网络设备102可配置有一个或多个天线，终端也可配置有一个或多个天线。可选地，该通信系统还可包括网络设备104，网络设备104也可配置有多个天线。
应理解，网络设备102或网络设备104还可包括与信号发送和接收相关的多个部件。一种可能的实施例中，与信号发送和接收相关的多个部件可以包括处理器、调制器、复用器、解调器或解复用器中的至少一个。
其中，网络设备为具有无线收发功能的设备或可设置于该设备的芯片，该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission and reception point，TRP或者transmission point，TP)，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(DU，distributed unit)。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括射频单元(radio unit，RU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能，DU实现无线链路控制(radio link control，RLC)、媒体接入控制(media access control，MAC)和物理(physical，PHY)层的功能。由于RRC层的信息最终会变成PHY层的信息，或 者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令或PHCP层信令，也可以认为是由DU发送的，或者，由DU+RU发送的。可以理解的是，网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外，CU可以划分为接入网RAN中的网络设备，也可以将CU划分为核心网CN中的网络设备，在此不做限制。
终端106也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。本发明的实施例中的终端可以是手机(mobile phone)、平板电脑(Pad)、智能打印机、火车探测器、加油站探测器、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端。本发明的实施例对应用场景不做限定。本发明中将前述终端106及可设置于前述终端106的芯片统称为终端。
网络设备102和网络设备104均可以与多个终端通信。一种可能的实施方式中，网络设备102和网络设备104均可以与图中示出的终端106通信。网络设备102和网络设备104可以与类似于终端106的任意数目的终端通信。但应理解，与网络设备102通信的终端和与网络设备104通信的终端可以是相同的，也可以是不同的。图1中示出的终端106可同时与网络设备102和网络设备104通信，但这仅示出了一种可能的场景，在某些场景中，终端可能仅与网络设备102或网络设备104通信，本发明对此不做限定。
应理解，图1仅为便于理解而示例的简化示意图，该通信系统中还可以包括其他网络设备或者还可以包括其他终端，图1中未予以画出。
本发明实施例提供的一种小区接入方法，该方法可以由终端执行，本发明实 施例以下内容中的终端可以为图1所示的终端106，以下内容中的网络设备可以为图1所示的网络设备102。应理解，本发明中，由终端执行的步骤也可以具体由终端的一个模块或部件执行，如可以由该终端中的芯片执行。以下实施例是以终端为执行主体进行的描述。
如图2所示，示出本发明实施例提供的一种小区接入方法，该方法包括：
S201，测量当前所驻留小区的信号质量，得到测量结果。
S202，当测量结果指示所述当前所驻留小区的信号质量不满足预设条件时，触发随机接入切换到初始BWP上进行数据传输，以及接收SIB1。
该S202中，一种可能的实施方式中，触发随机接入切换到初始BWP上进行数据传输之前，还可以继续判断当前激活的BWP是否为初始BWP，若不是初始BWP，则触发随机接入切换到初始BWP上进行数据传输，以及接收SIB1。若当前激活的BWP是初始BWP，则接收SIB1。
示例性地，当终端从LTE小区切换到NR小区后，NR小区的信道质量变差，如信噪比(Signal to Noise Ratio，SNR)小于设定阈值，或者不符合小区驻留条件(如驻留条件包括：成功读取到小区的系统信息且符合小区选择S准则)的小区，这时，若当前激活的BWP为非初始BWP，如附加(Additional)BWP，终端很可能会无法接收到SIB1。因此需要触发随机接入切换到初始BWP上进行数据传输。之后，终端在Initial BWP上发起随机接入，那么网络也会相应的将上下行BWP都切换到Initial BWP上，可以保证接收数据的连续，同时从当前激活的BWP切换到Initial BWP上做业务，更换了BWP也会改善终端数据的发送和接收，因SIB1中包含其他系统消息(other system information，OSI)的调度信息，然后终端从OSI中获得的邻区列表，当驻留小区继续恶化，发生失步后，终端就可以从OSI中获得的邻区列表优先找适合小区发起注册，最快速度恢复业务，为用户提供更好的体验。
一种可能的实施例中，终端在执行上述S202时，当测量结果指示所述当前 所驻留小区的信号质量不满足预设条件时，即使当前激活的BWP是非初始BWP，终端还可以继续判断当前激活的BWP中是否包括SIB1，若当前激活的BWP中包括SIB1，则终端接收SIB1；若当前激活的BWP中不包括SIB1，才触发随机接入切换到初始BWP上进行数据传输和接收SIB1。
在另一种可能的实施例中，终端在执行上述S202时，终端在确定驻留小区的信道质量变差之后，还可以继续判断网络侧是否提供候选BWP或者候选小区，以及是否配置dedicatedSIB1-Delivery参数，根据不同的判断结果可以存在如下不同的情况。
情况a，若网络侧没有提供候选BWP或者候选小区，也并未配置dedicatedSIB1-Delivery参数时，终端需要继续判断当前激活的BWP是否非初始BWP，即执行上述S203至S204。
情况b，若网络侧提供候选BWP或者候选小区、配置dedicatedSIB1-Delivery参数中任意一项满足时，终端可以不执行上述方法步骤即执行上述S202至S204。
情况c，若网络侧没有提供候选BWP或者候选小区，也并未配置dedicatedSIB1-Delivery参数，无论是否配置了SearchSpaceSIB1参数时，仍然需要继续判断当前激活的BWP是否非初始BWP，即执行上述S203至S204。具体来说，假设终端从LTE切换NR后，终端的激活BWP(FirstActBWP)没有配置SearchSpaceSib1，按照协议终端不需要接收SIB1。(1).如果终端当前激活BWP是InitialBWP，终端可以SearchSpaceSib1配置信息，主动接收SIB1，后续请求(request)OSI，以帮助终端了解邻区状况，为终端选择最优小区。(2).如果终端当前激活的(active)BWP是附加(Additional)BWP，若SIB1在激活的(active)BWP内，则忽略SearchSpaceSib1配置，正常接收SIB1；若SIB1在active BWP外，终端无法接收到SIB1，此时终端主动触发随机接入切换到InitialBWP上接收SIB1，同时可以保证上下行DCI不丢失。另一场景下，LTE切换NR后FirstActBWP配置了SearchSpaceSib1，按照协议终端需要接收SIB1。(1).如果当前激活BWP是 InitialBWP，正常接收SIB1；(2).如果当前激活BWP是AdditionalBWP，若SIB1在激活的(active)BWP内，则忽略SearchSpaceSib1配置，正常接收SIB1；若SIB1在active BWP外，终端无法接收到SIB1，此时终端主动触发随机接入切换到InitialBWP上接收SIB1，同时可以保证上下行DCI不丢失。这样，当终端切换到InitialBWP后，接收完SIB1并从OSI中获得的邻区列表，小区继续恶化，NR小区发生失步后，终端从OSI中获得的邻区列表优先找适合小区发起注册，最快速度恢复业务。
示例性地，一种可能的情况下，当终端从LTE小区切换到NR小区后，终端在确定驻留小区的信道质量变差之后，网络侧并没有提供候选BWP或者候选小区，也并未配置dedicatedSIB1-Delivery参数时，若当前激活的BWP为非初始BWP，如附加(Additional)BWP，终端很可能会无法接收到SIB1，则终端通过主动切换到初始BWP上尝试收发数据，以及获取SIB1。另一种可能的情况下，如果网侧没有配置SearchSpaceSIB1，但是当前激活的BWP存在与Initial BWP相同的SCS和CP length并且Coreset0包含在激活的BWP内，那么Coreset0＝0、Searchspace0＝0，这样就可以确定调度SIB1的PDCCH时频域位置，因此也就可以获取SIB1。
在一种可能的实施例中，终端在执行上述S202时，终端在确定驻留小区的信道质量变差之后，还可以继续判断网络侧是否提供候选BWP或者候选小区，以及是否配置dedicatedSIB1-Delivery参数和SearchSpaceSIB1参数，若网络侧没有提供候选BWP或者候选小区，也并未配置dedicatedSIB1-Delivery参数时，终端需要继续判断当前激活的BWP是否非初始BWP；若网络侧提供候选BWP或者候选小区、配置dedicatedSIB1-Delivery参数中任意一项满足时，终端可以接收到SIB1。
为了更加系统地对上述小区接入方法进行阐述，下文以终端从LTE小区切换到NR小区，且NR小区发生信号质量恶化为例，对上述终端的小区接入的方 法流程图进行举例说明，如图3所示。
S301，当终端接入NR小区之后，启动信号质量的测量，以及计算信噪比。
S302，判断信噪比是否大于或等于设定阈值，且网络侧是否提供候选BWP或者候选小区和是否配置dedicatedSIB1-Delivery参数，若否执行S303，否则不作处理。
S303，终端继续判断当前激活的BWP是否是初始BWP，若否，则执行S304，否则执行S305。
S304，终端还可以继续判断当前激活的BWP中是否包括SIB1，若是，则执行S305，否则执行S306。
S305，终端触发随机接入切换到初始BWP上进行数据传输，以及接收SIB1。
S306，终端主动接收SIB1。
基于上述步骤，然后终端可以从OSI中获得的邻区列表，当驻留小区继续恶化，发生失步后，终端就可以从OSI中获得的邻区列表优先找适合小区发起注册，最快速度恢复业务，为用户提供更好的体验。
与上述实施例的构思相同，本发明实施例还提供一种通信装置，该通信装置400用于实现上述方法中终端的功能。示例地，该通信装置400可以是终端，也可以是终端中的装置。该装置可以为芯片系统。本发明实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。如图4所示，通信装置400包括测量单元401、判断单元402、切换单元403和接收单元404，其中：
测量单元401，用于测量当前所驻留小区的信号质量，得到测量结果。
判断单元402，用于判断测量结果所指示的所述当前所驻留小区的信号质量是否满足预设条件；
切换单元403，用于当测量结果指示所述当前所驻留小区的信号质量不满足预设条件时，则触发随机接入切换到初始BWP上进行数据传输。
接收单元，用于在初始BWP上接收SIB1。
在一种可能的实施例中，所述判断单元402在触发随机接入切换到初始BWP上进行数据传输之前，还用于：判断当前激活的带宽部分BWP是否为初始BWP；
所述切换单元403，具体用于：若当前激活的BWP不是初始BWP，则触发随机接入切换到初始BWP上进行数据传输。
在一种可能的实施例中，所述切换单元403，具体用于：若当前激活的BWP不是初始BWP，且当前激活的BWP中不包括SIB1，则触发随机接入切换到初始BWP上进行数据传输。
在一种可能的实施例中，接收单元404，用于若当前激活的BWP是初始BWP，则直接接收SIB1。
在一种可能的实施例中，测量结果指示所述当前所驻留小区的信号质量不满足预设条件，包括：测量结果指示信噪比小于设定阈值，或者不符合驻留条件。
在一种可能的实施例中，所述切换单元403在测量当前所驻留小区的信号质量之前，还用于：从第一通信系统中的小区切换至第二通信系统的所述驻留小区。
关于上述单元的具体执行过程和有益效果，可参见上图2和图3相关的方法实施例中的记载。
本发明实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，另外，在本发明各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。如图5所示，该通信装置500包括至少一个处理器510和存储器520，以及通信接口530。其中，存储器520中存储有计算机程序。存储器520和处理器510耦合。本发明实施例中的耦合是装置、单元或模块之间的间隔耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。作为另一种实现，存储器520还可以位于通信装置500之外。处理器510可以和存储器520协同操作。处理器510可以调用存储器520中存储的 计算机程序。所述至少一个存储器中的至少一个可以包括于处理器中。
在本发明实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。一种可能的实施例中，通用处理器可以是微处理器或者任何常规的处理器。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本发明实施例中，存储器可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)，还可以是易失性存储器(volatile memory)。一种可能的实施方式中，易失性存储器可以是随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本发明实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储计算机程序和/或数据。
本发明实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机计算机程序时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输。一种可能的实施方式中，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线。一种可能的实施例中，有线连接方式可以是同轴电缆、光纤或数字用户线(digital subscriber line，简称DSL)，或者，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过无线方式向另一个网站站点、计算机、 服务器或数据中心进行传输。一种可能的实施例中，有线连接方式可以是红外、无线或微波。所述计算机可读存储介质可以是计算机可以存取的任何介质或者是包含一个或多个介质集成的服务器、数据中心等数据存储设备。一种可能的实施方式中，所述介质可以是磁性介质、光介质、或者半导体介质。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (14)

  1. 一种小区接入方法，其特征在于，应用于终端，所述方法包括：
    测量当前所驻留小区的信号质量，得到测量结果；
    当测量结果指示所述当前所驻留小区的信号质量不满足预设条件时，触发随机接入切换到初始BWP上进行数据传输，以及接收系统信息块SIB1。
  2. 根据权利要求1所述的方法，其特征在于，触发随机接入切换到初始BWP上进行数据传输之前，还包括：
    判断当前激活的带宽部分BWP是否为初始BWP；
    触发随机接入切换到初始BWP上进行数据传输，包括：若当前激活的BWP不是初始BWP，则触发随机接入切换到初始BWP上进行数据传输。
  3. 根据权利要求2所述的方法，其特征在于，若当前激活的BWP不是初始BWP，则触发随机接入切换到初始BWP上进行数据传输，包括：
    若当前激活的BWP不是初始BWP，且当前激活的BWP中不包括SIB1，则触发随机接入切换到初始BWP上进行数据传输。
  4. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：
    若当前激活的BWP是初始BWP，则接收SIB1。
  5. 根据权利要求1至3任一项所述的方法，其特征在于，测量结果指示所述当前所驻留小区的信号质量不满足预设条件，包括：测量结果指示信噪比小于设定阈值，或者不符合驻留条件。
  6. 根据权利要求1至3任一项所述的方法，其特征在于，所述测量当前所驻留小区的信号质量之前，还包括：
    从第一通信系统中的小区切换至第二通信系统的所述驻留小区。
  7. 一种通信装置，其特征在于，包括：
    测量单元，用于测量当前所驻留小区的信号质量，得到测量结果；
    判断单元，用于判断测量结果所指示的所述当前所驻留小区的信号质量是否满足预设条件；
    切换单元，用于当测量结果指示所述当前所驻留小区的信号质量不满足预设条件时，则触发随机接入切换到初始BWP上进行数据传输；
    接收单元，用于在所述初始BWP上接收系统信息块SIB1。
  8. 根据权利要求7所述的装置，其特征在于，所述判断单元在触发随机接入切换到初始BWP上进行数据传输之前，还用于：判断当前激活的带宽部分BWP是否为初始BWP；
    所述切换单元，具体用于：若当前激活的BWP不是初始BWP，则触发随机接入切换到初始BWP上进行数据传输。
  9. 根据权利要求8中所述的装置，其特征在于，所述切换单元，具体用于：若当前激活的BWP不是初始BWP，且当前激活的BWP中不包括SIB1，则触发随机接入切换到初始BWP上进行数据传输。
  10. 根据权利要求8或9所述的装置，其特征在于，所述装置还包括：
    接收单元，用于若当前激活的BWP是初始BWP，则接收SIB1。
  11. 根据权利要求7至9任一项所述的装置，其特征在于，测量结果指示所述当前所驻留小区的信号质量不满足预设条件，包括：测量结果指示信噪比小于设定阈值，或者不符合驻留条件。
  12. 根据权利要求7至9任一项所述的装置，其特征在于，所述切换单元在测量当前所驻留小区的信号质量之前，还用于：
    从第一通信系统中的小区切换至第二通信系统的所述驻留小区。
  13. 一种终端，其特征在于，包括：处理器及存储器，所述存储器用于存储计算机程序；所述处理器用于执行所述存储器存储的计算机程序，以使所述终端执行权利要求1至6中任一项所述的方法。
  14. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计 算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1至6任一项所述的方法。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109996332A (zh) * 2018-01-03 2019-07-09 维沃移动通信有限公司 驻留的方法和设备
CN111543069A (zh) * 2017-11-14 2020-08-14 诺基亚技术有限公司 空闲模式和非活动模式下的bwp处理
US20210274377A1 (en) * 2018-06-20 2021-09-02 Lg Electronics Inc. Method for selecting bwp and device supporting the same
CN113923741A (zh) * 2021-11-12 2022-01-11 展讯通信（上海）有限公司 一种小区接入方法、装置、介质及终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021516478A (ja) * 2018-01-19 2021-07-01 オッポ広東移動通信有限公司Ｇｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ． タイマーに基づく帯域幅部分の切り替え方法、端末デバイス及びネットワークデバイス
CN110087311A (zh) * 2018-01-26 2019-08-02 华为技术有限公司 通信方法和通信设备
CN111756499A (zh) * 2019-03-29 2020-10-09 中国移动通信有限公司研究院 调整带宽部分计时器的方法、终端以及存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111543069A (zh) * 2017-11-14 2020-08-14 诺基亚技术有限公司 空闲模式和非活动模式下的bwp处理
CN109996332A (zh) * 2018-01-03 2019-07-09 维沃移动通信有限公司 驻留的方法和设备
US20210274377A1 (en) * 2018-06-20 2021-09-02 Lg Electronics Inc. Method for selecting bwp and device supporting the same
CN113923741A (zh) * 2021-11-12 2022-01-11 展讯通信（上海）有限公司 一种小区接入方法、装置、介质及终端

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