WO2022120582A1 - 一种系统信息块传输方法及通信装置 - Google Patents

一种系统信息块传输方法及通信装置 Download PDF

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Publication number
WO2022120582A1
WO2022120582A1 PCT/CN2020/134591 CN2020134591W WO2022120582A1 WO 2022120582 A1 WO2022120582 A1 WO 2022120582A1 CN 2020134591 W CN2020134591 W CN 2020134591W WO 2022120582 A1 WO2022120582 A1 WO 2022120582A1
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WO
WIPO (PCT)
Prior art keywords
system information
network device
information block
terminal device
timer
Prior art date
Application number
PCT/CN2020/134591
Other languages
English (en)
French (fr)
Inventor
项弘禹
陈磊
李秉肇
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202080103855.0A priority Critical patent/CN116114374A/zh
Priority to PCT/CN2020/134591 priority patent/WO2022120582A1/zh
Priority to EP20964527.4A priority patent/EP4240099A4/en
Publication of WO2022120582A1 publication Critical patent/WO2022120582A1/zh
Priority to US18/331,113 priority patent/US20230318791A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a system information block transmission method and a communication device.
  • a mobile communication system such as a new radio (NR) system or a long term evolution (LTE) system
  • NR new radio
  • LTE long term evolution
  • SI system information of the cell
  • the system information mainly includes: master information block (MIB), system information block (SIB), etc.
  • MIB master information block
  • SIB system information block
  • 14 types of SIBs are defined in the NR system: from SIB type (type) 1 to SIB type 14, which are abbreviated as SIB1, SIB2, . . . , SIB14, respectively.
  • SIBs other than SIB1 are also called other system information (OSI).
  • the terminal device When the terminal device is in the radio resource control (RRC) disconnected state, the terminal device is scheduled to work on the initial bandwidth part, and the terminal device can receive the SIB1 broadcast from the network device through the initial bandwidth part.
  • RRC radio resource control
  • the terminal device When the terminal device is in the RRC connection state, the terminal device is scheduled to work on the active bandwidth part, the terminal device may not receive the SIB1 broadcast by the network device on the active part of the bandwidth, and cannot work normally in the current cell, reducing the reliability of communication. sex.
  • the present application provides a system information block transmission method and a communication device, which are used to solve the problem that a terminal device cannot receive a system information block broadcast from a network device on an activated bandwidth part.
  • the present application provides a system information block transmission method, including: a network device sends a system information block to a terminal device through a first bandwidth part; The system information block is sent to the terminal device through the second bandwidth part, and the system information block is included in the first dedicated signaling, wherein the second bandwidth part is not configured with the configuration information for the network device to send the system information block.
  • the second bandwidth part is not configured with configuration information for the network device to send the system information block
  • the terminal device cannot receive the system information block broadcast by the network device when working on the second bandwidth part, and the network device is in the terminal device.
  • the system information block is sent to the terminal device through dedicated signaling, and the terminal device obtains the system information block from the dedicated signaling, so as to periodically update the stored system information block and avoid the occurrence of terminal
  • the terminal device deletes the system information block and cannot acquire a new system information block, which leads to the problem that it cannot work normally in the current cell and improves the reliability of communication.
  • the network device determining the arrival of the first moment satisfying the preset condition includes: the network device receiving first indication information from the terminal device, where the first indication information is used to indicate system information stored in the terminal device The block is about to expire; the network device determines the first moment according to the first indication information.
  • the terminal device maintenance timer is used to determine the duration of the system information block stored in the terminal device. If the terminal device cannot receive the system information block broadcast by the network device through the second bandwidth part, the duration reaches the timer.
  • the first indication information is sent to the network device, and the network device determines to immediately send the first dedicated signaling including the system information block to the terminal device according to the first indication information, and the terminal device receives the first dedicated signaling.
  • the system information block is obtained from the first dedicated signaling, so as to periodically update the stored system information block.
  • determining that the network device arrives at the first moment that satisfies the preset condition includes: the network device receives second indication information from the terminal device, where the second indication information includes the second moment, and the second moment is the terminal The expiration time of the system information block stored in the device; the network device determines the first time according to the second indication information, and the first time is before the second time.
  • the terminal device may determine that the duration of the storage system information block reaches the effective duration and send the second indication information to the network device at any time.
  • the network device can also determine the failure time in the second indication information.
  • the first dedicated signaling including the system information block is sent to the terminal device at any time before the duration reaches the effective duration.
  • determining that the network device arrives at the first moment that meets the preset condition includes: the network device starts timing the set duration from the moment when the network device establishes the RRC connection with the terminal device, and the first moment is not earlier than the preset time. The time when the timer long timed out.
  • the network device determining the arrival of the first moment satisfying the preset condition includes: the network device starts timing the set duration from the moment when the network device sends the system information block to the terminal device through the second dedicated signaling, The first time is not earlier than the time when the set duration timed out.
  • the network device determines that the terminal device cannot receive the system information block through the second bandwidth part, it actively maintains the timer to determine the duration of storing the system information block in the terminal device, and the network device determines that the duration reaches the device.
  • the timing is long, the first dedicated signaling including the system information block is sent to the terminal device, and the terminal device receives the first dedicated signaling, obtains the system information block from the first dedicated signaling, and periodically updates the stored system information. piece.
  • the terminal device does not need to determine whether the broadcast of the network device can be received, nor does it need to start a timer, etc., which reduces the complexity of the terminal device.
  • the second bandwidth portion is not configured with configuration information for the network device to send the system information block, including: the configuration information for the network device to send the system information block includes frequency domain resources for broadcasting the system information block by the network device , the second bandwidth part does not include frequency domain resources.
  • the network device can schedule the terminal device to the dedicated bandwidth part, and the terminal device realizes data transmission on the dedicated bandwidth part, which is helpful for resource utilization in the cell. Reasonable distribution.
  • the second bandwidth portion does not carry the system information block periodically broadcast by the network device.
  • the second bandwidth portion is the same as the first bandwidth portion.
  • the present application provides a method for transmitting a system information block, including: a terminal device receives a system information block from a network device through a first bandwidth part; the terminal device stores the system information block, and starts a timer, and the timing of the timer is is the set duration; when the timer expires, the terminal device receives the system information block from the network device through the second bandwidth part, and the system information block received through the second bandwidth part is included in the first dedicated signaling, wherein the second The bandwidth part is not configured with the configuration information for the network device to send the system information block.
  • the terminal device after receiving the system information block of the network device, the terminal device can start a timer to determine the duration of the current storage system information block. If the terminal device cannot receive the system information broadcast by the network device through the second bandwidth part block, then when the duration reaches the set duration of the timer (that is, the timer reaches the set duration), the first dedicated signaling including the system information block is received from the network device through the second bandwidth part to avoid There is a problem that the terminal device deletes the system information block and cannot obtain a new system information block, which leads to the problem that it cannot work normally in the current cell, thereby improving the reliability of communication.
  • the method further includes: when the timer times out, the terminal device sends first indication information to the network device, where the first indication information is used to indicate that the system information block stored in the terminal device is about to expire.
  • the terminal device if the terminal device cannot receive the system information block broadcasted by the network device through the second bandwidth part, then when the duration of the system information block stored in the terminal device determined by the timer reaches the set duration, the system information block is sent to the network device.
  • First indication information the network device determines to immediately send the first dedicated signaling including the system information block to the terminal device according to the first indication information, and the terminal device receives the first dedicated signaling and obtains it from the first dedicated signaling System information block, which implements periodic updating of the stored system information block.
  • the method further includes: when the timer times out, the terminal device sends second indication information to the network device, where the second indication information includes a second time, and the second time is system information stored in the terminal device The block's expiration time.
  • the terminal device may determine that the duration of the storage system information block reaches the effective duration and send the second indication information to the network device at any time.
  • the network device can also determine the failure time in the second indication information.
  • the first dedicated signaling including the system information block is sent to the terminal device at any time before the duration reaches the effective duration.
  • the second bandwidth portion is not configured with configuration information for the network device to send the system information block, including: the configuration information for the network device to send the system information block includes frequency domain resources for broadcasting the system information block by the network device , the second bandwidth part does not include frequency domain resources.
  • the network device can schedule the terminal device to the dedicated bandwidth part, and the terminal device realizes data transmission on the dedicated bandwidth part, which is helpful for resource utilization in the cell. Reasonable distribution.
  • the second bandwidth portion does not carry the system information block periodically broadcast by the network device.
  • the second bandwidth portion is the same as the first bandwidth portion.
  • the present application provides a system information block transmission method, including:
  • the terminal device receives the system information block from the network device through the first bandwidth part; the terminal device stores the system information block, and starts a first timer, and the time duration of the first timer is the set duration; the terminal device counts the first timer When the timeout expires, if the system information block from the network device is not received on the second bandwidth part, the stored system information block is continued to be used, wherein the second bandwidth part is not configured with the configuration information for the network device to send the system information block.
  • the terminal device after receiving the system information block of the network device, the terminal device can start a timer to determine the duration of the current storage system information block. If the terminal device determines that the system information block cannot be received through the second bandwidth part, then When the duration of the system information block stored in the terminal device reaches the valid duration, continue to use the stored system information block until the updated system information block sent by the network device through the first dedicated signaling is received, so as to avoid the occurrence of deletion by the terminal device The system information block cannot be acquired and a new system information block cannot be obtained, which leads to the problem of not working normally in the current cell, thereby improving the reliability of communication.
  • the terminal device continues to use the stored system information block, including: the terminal device extends the valid duration of the stored system information block; or the terminal device restarts the first timer; or the terminal device starts the second timer timer, the timing of the second timer and the first timer are different.
  • the second bandwidth portion is not configured with configuration information for the network device to send the system information block, including: the configuration information for the network device to send the system information block includes frequency domain resources for broadcasting the system information block by the network device , the second bandwidth part does not include frequency domain resources.
  • the network device can schedule the terminal device to the dedicated bandwidth part, and the terminal device realizes data transmission on the dedicated bandwidth part, which is helpful for resource utilization in the cell. Reasonable distribution.
  • the second bandwidth portion does not carry the system information block periodically broadcast by the network device.
  • the second bandwidth portion is the same as the first bandwidth portion.
  • an embodiment of the present application provides a communication device, including a processing module and a transceiver module;
  • the processing module is configured to control the transceiver module to send the system information block to the terminal device through the first bandwidth part; the processing module is further configured to determine that when the first moment that satisfies the preset condition is reached, control the transceiver module to At the first moment, the system information block is sent to the terminal device through the second bandwidth part, and the system information block is included in the first dedicated signaling, wherein the second bandwidth part is not configured with the configuration information for the network device to send the system information block.
  • the processing module is specifically configured to control the transceiver module to receive first indication information from the terminal device, where the first indication information is used to indicate that the system information block stored in the terminal device is about to expire; according to the first indication information Determine the first moment.
  • the processing module is specifically configured to control the transceiver module to receive second indication information from the terminal device, where the second indication information includes the second time, and the second time is the failure of the system information block stored in the terminal device time; determine the first time according to the second indication information, and the first time is before the second time.
  • the processing module is specifically configured to count the set duration from the moment when the communication apparatus establishes the RRC connection with the terminal device, and the first time is not earlier than the moment when the set duration expires.
  • the processing module is specifically configured to start timing the set duration from the moment when the communication device sends the system information block to the terminal device through the second dedicated signaling, and the first moment is not earlier than the moment when the set duration times out .
  • the processing module controls the transceiver module to send the configuration information of the system information block to include frequency domain resources for the transceiver module to broadcast the system information block, and the second bandwidth part does not include frequency domain resources.
  • the second bandwidth portion does not carry the system information block periodically broadcast by the network device.
  • the second bandwidth portion is the same as the first bandwidth portion.
  • an embodiment of the present application provides a communication device, including a processing module and a transceiver module;
  • the processing module is configured to control the transceiver module to receive the system information block from the network device through the first bandwidth part; the processing module is further configured to store the system information block, and start a timer, and the timing of the timer is is the set duration; the processing module is also used to control the transceiver module to receive the system information block from the network device through the second bandwidth part when the timer times out, and the system information block received through the second bandwidth part is included in the first dedicated information block.
  • the second bandwidth part is not configured with configuration information for the network device to send the system information block.
  • the processing module is further configured to control the transceiver module to send first indication information to the network device when the timer times out, where the first indication information is used to indicate that the system information block stored in the terminal device is about to expire .
  • the processing module is further configured to control the transceiver module to send second indication information to the network device when the timer times out, the second indication information includes the second time, and the second time is stored in the terminal device. The expiration time of the system information block.
  • the processing module controls the transceiver module to send the configuration information of the system information block to include frequency domain resources for the transceiver module to broadcast the system information block, and the second bandwidth part does not include frequency domain resources.
  • the second bandwidth portion does not carry the system information block periodically broadcast by the network device.
  • the second bandwidth portion is the same as the first bandwidth portion.
  • an embodiment of the present application provides a communication device, including a processing module and a transceiver module;
  • the processing module is configured to control the transceiver module to receive the system information block from the network device through the first bandwidth part; the processing module is further configured to store the system information block, and start a first timer, the first timing The timing duration of the timer is the set duration; the processing module is further configured to continue to use the stored system information block if the system information block from the network device is not received on the second bandwidth part when the first timer times out.
  • the second bandwidth portion is not configured with configuration information for the network device to send the system information block.
  • the processing module is specifically configured to extend the valid duration of the stored system information block; or restart the first timer; or start the second timer, the timing of the second timer and the first timer Duration varies.
  • the processing module controls the transceiver module to send the configuration information of the system information block to include frequency domain resources for the transceiver module to broadcast the system information block, and the second bandwidth part does not include frequency domain resources.
  • the second bandwidth portion does not carry the system information block periodically broadcast by the network device.
  • the second bandwidth portion is the same as the first bandwidth portion.
  • the present application provides a communication device, comprising a processor and a communication interface, the communication interface is used to receive signals from other communication devices other than the communication device and transmit to the processor or send signals from the processor to the communication device Other communication devices other than the device, the processor is used to implement the method in the first aspect or any possible implementation manner of the first aspect, or the second aspect or any possible implementation manner of the second aspect through logic circuits or executing code instructions A method in an implementation, or a method in the third aspect or any possible implementation of the third aspect.
  • the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed by a communication device, the communication device is made to realize the above-mentioned first aspect or the first aspect.
  • the present application provides a computer program product, the computer program product includes a computer program or an instruction, when the computer program or instruction is executed by a communication device, the communication device enables the communication device to realize the above-mentioned first aspect or any possible possibility of the first aspect.
  • the present application provides a communication system, including a communication device in the fourth aspect or any possible implementation of the fourth aspect and a communication device in the fifth aspect or any possible implementation of the fifth aspect ; or the communication device including the sixth aspect or any possible implementation manner of the sixth aspect.
  • the present application provides a chip, comprising at least one processor and an interface
  • At least one processor is configured to execute program line instructions to implement the method in the first aspect or any possible implementation of the first aspect, or to implement the method in the second aspect or any possible implementation of the second aspect, or The method of the third aspect or any possible implementation of the third aspect.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by the present application.
  • FIG. 2 is a schematic flowchart of a SIB1 transmission method provided by the present application.
  • FIG. 3 is a schematic flowchart of a first network device sending SIB1 provided by the present application
  • FIG. 4 is a schematic flowchart of the second type of network device sending SIB1 provided by the present application.
  • FIG. 5 is a schematic flowchart of a third type of network device sending SIB1 provided by the present application.
  • FIG. 6 is a schematic flowchart of a fourth network device sending SIB1 provided by the present application.
  • FIG. 7 is a schematic structural diagram of a communication device provided by the present application.
  • FIG. 8 is a schematic structural diagram of another communication device provided by the present application.
  • the method provided in this application can be applied to the fifth generation (5G) communication system, or can also be applied to a new communication system that will appear in future communication development, and the like.
  • 5G fifth generation
  • the method provided in this embodiment of the present application can be applied to the communication system shown in FIG. 1 , where a network device and three terminal devices (represented by UE1 to UE3 respectively) form a single-cell communication system, and UE1 to UE3 form a single-cell communication system.
  • the uplink data can be sent to the network device separately or simultaneously, and the network device can send the downlink data to the UE1 to UE3 separately or simultaneously.
  • FIG. 1 is only an exemplary illustration, and does not specifically limit the number of terminal devices included in the communication system, the number of network devices, and the number of cells covered by the network devices.
  • the terminal equipment involved in the embodiments of this application is an entity on the user side that is used to receive or transmit signals.
  • a terminal device may be a device that provides voice and/or data connectivity to a user, eg, a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • the terminal device may also be other processing device connected to the wireless modem.
  • Terminal devices can communicate with a radio access network (RAN).
  • RAN radio access network
  • Terminal equipment may also be referred to as wireless terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment, UE) and so on.
  • Common terminal devices include, for example, mobile phones, tablet computers, notebook computers, PDAs, mobile internet devices (MIDs), video surveillance devices, and wearable devices, such as smart watches, smart bracelets, pedometers, etc.
  • MIDs mobile internet devices
  • wearable devices such as smart watches, smart bracelets, pedometers, etc.
  • the embodiments of the present application are not limited thereto.
  • the network device involved in the embodiments of the present application is an entity on the network side that is used to transmit or receive signals, and can be used to convert the received air frame and the network protocol (internet protocol, IP) packet to each other, as the A router between a terminal device and the rest of the access network, which may include an IP network and the like.
  • the network device may also coordinate attribute management of the air interface.
  • the network device may be a new radio controller (NR controller), a gNode B (gNB) in a 5G system, a centralized unit, a new radio base station, or a
  • the remote radio module can be a micro base station, a relay, a distributed unit, a reception point (transmission reception point, TRP) or a transmission point (TP) or Any other wireless access device, but the embodiment of the present application is not limited to this.
  • a network device can cover one or more cells.
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the 5G system supports the configuration of the bandwidth part (BWP), and the network device can flexibly adjust the bandwidth according to the service data volume of the terminal device to save the power consumption of the terminal device.
  • BWP bandwidth part
  • the network device configures the initial bandwidth part (initial BWP) for the terminal device, and the initial bandwidth part includes the frequency domain resources of the network device broadcast SIB1, and the terminal device obtains the initial bandwidth part through cell search and cell Downlink synchronization is performed to obtain the physical cell identifier (PCI) of the cell.
  • the terminal device parses the master information block (MIB) carried in the physical broadcast channel (PBCH) according to the PCI of the cell, and then further obtains the transmission resources of SIB1 according to the MIB.
  • the terminal device is on the transmission resources of SIB1.
  • the terminal equipment accesses the cell and works in the cell according to the SIB of the cell.
  • the network device can configure multiple dedicated bandwidth parts (dedicated BWP) for the terminal device, and the network device can activate the dedicated bandwidth part (active BWP) of the terminal device through dynamic instructions.
  • the device operates on this active bandwidth portion. It should be noted that, in this application, when a terminal device is scheduled to a certain dedicated bandwidth portion, the dedicated bandwidth portion may also be referred to as an active bandwidth portion.
  • the SIB1 stored in the terminal device has a valid duration, which may be 3h.
  • the duration of storage of the SIB1 in the terminal device reaches the valid duration, the stored SIB1 will be deleted and the process of acquiring a new SIB1 will be performed.
  • the terminal device cannot receive the SIB1 of the current cell broadcast by the network device. The terminal equipment mistakenly thinks that the current cell is banned and performs the cell reselection process.
  • the present application provides a system information block transmission method.
  • a terminal device cannot obtain a system information block broadcast by a network device, it obtains the system information block by means of dedicated signaling, so as to avoid the terminal device from mistaking the current cell to be banned and blocked.
  • the problem of performing the cell reselection procedure is a problem of performing the cell reselection procedure.
  • system information block can be SIB1 or OSI, and the OSI is any one of SIB2, .
  • FIG. 2 is a schematic flowchart of a SIB1 transmission method exemplarily provided by this application, in the process:
  • Step 201 the network device sends the SIB1 to the terminal device through the first bandwidth part.
  • the terminal device receives the SIB1 from the network device through the first bandwidth part.
  • the first bandwidth part is configured with the configuration information of the SIB1 sent by the network device, and when the terminal device works in the first bandwidth part, it can receive the SIB1 from the network device.
  • the first bandwidth portion may be an initial bandwidth portion configured by the network device for the terminal device, or a dedicated bandwidth portion configured by the network device for the terminal device.
  • the first bandwidth part includes frequency domain resources of the SIB1 broadcast by the network device, and the terminal device receives the SIB1 broadcast by the network device through the first bandwidth part.
  • the network device broadcasts the MIB, wherein the MIB indicates a common search space (common search space, CSS) and a control resource set (control resource set, CORESET) 0, and the terminal device determines according to the common search space and the control resource set 0 in the MIB.
  • the physical downlink control channel (PDCCH) resource used by the network device to send the scheduling information of the SIB1, and then receives the scheduling information of the SIB1 broadcast by the network device on the PDCCH resource, and determines the broadcast of the network device according to the scheduling information of the SIB1.
  • the physical downlink shared channel (PDSCH) resource of the SIB1, and the terminal device receives the SIB1 broadcast from the network device on the PDSCH resource.
  • PDSCH physical downlink shared channel
  • step 202 the terminal device stores the system information block and starts a timer.
  • the SIB1 corresponds to the valid duration, and the valid duration may be 3h or other values.
  • the duration of the storage of the SIB1 in the terminal device shall not exceed the valid duration corresponding to the SIB1.
  • the timer started by the terminal device is used to determine the duration of storing the SIB1 in the terminal device, and the timing duration of the timer is a set duration, and the set duration is less than the valid duration corresponding to the SIB1.
  • the terminal device may start a timer to determine the duration of storing the SIB1 in the terminal device, and the timing duration of the timer is, for example, 2.9h.
  • Step 203 when the network device determines that the first moment that satisfies the preset condition is reached, it sends the first dedicated signaling including the SIB1 to the terminal device through the second bandwidth part at the first moment.
  • the first time is not earlier than the time when the set duration timed out.
  • the terminal device works on the second bandwidth part at the first moment, and the second bandwidth part may be a dedicated bandwidth part configured by the network device for the terminal device. It should be understood that when the terminal device works on the second bandwidth part, the second bandwidth part The bandwidth portion is activated, and this second bandwidth portion may be referred to as the active bandwidth portion.
  • the configuration information of the SIB1 sent by the network device is not configured on the second bandwidth part, and the terminal device cannot receive the SIB1 broadcast from the network device through the second bandwidth part. Specifically in the following two cases:
  • Case 1 The second bandwidth portion and the first bandwidth portion are different bandwidth portions.
  • the first bandwidth portion is an initial bandwidth portion configured by the network device for the terminal device
  • the second bandwidth portion is a dedicated bandwidth portion configured by the network device for the terminal device.
  • the first bandwidth portion is a dedicated bandwidth portion configured by the network device for the terminal device
  • the second bandwidth portion is another dedicated bandwidth portion configured by the network device for the terminal device.
  • the network device may schedule terminal devices from one dedicated bandwidth portion to another dedicated bandwidth portion.
  • the first bandwidth part and the second bandwidth part may be indicated by an identity (ID), and the network device configures four dedicated bandwidth parts for the terminal device, corresponding to IDs: BWP0 to BWP3, for example, the terminal device works On the dedicated bandwidth part corresponding to BWP3, the handover information from the network device is received, and the handover information may include BWP1, which is used to instruct the terminal device to switch from the dedicated bandwidth part corresponding to BWP3 to the dedicated bandwidth part corresponding to BWP1.
  • the dedicated bandwidth portion corresponding to BWP3 is the first bandwidth portion
  • the dedicated bandwidth portion corresponding to BWP1 is the second bandwidth portion.
  • the frequency domain resources and/or time domain resources of the network device broadcasting SIB1 are not configured on the second bandwidth portion.
  • the second bandwidth part is not configured with the frequency domain resources of the network equipment to broadcast SIB1, that is, the second bandwidth part does not include the frequency domain resources of the network equipment to broadcast the SIB1, although the network equipment may broadcast the SIB1, but because the terminal equipment works in the first In the second bandwidth part, the SIB1 broadcast by the network device cannot be received.
  • the second bandwidth part is not configured with time domain resources for network equipment to broadcast SIB1, although the second bandwidth part may include frequency domain resources for network equipment to broadcast SIB1, the network equipment does not periodically broadcast SIB1 due to the consideration of energy saving. Then the terminal device cannot receive the SIB1 broadcast by the network device.
  • the terminal device cannot receive the SIB1 broadcast by the network device. For details, please refer to the description.
  • Case 2 The first bandwidth portion and the second bandwidth portion are the same bandwidth portion.
  • the second bandwidth part is not configured with the time domain resources of the network equipment broadcasting SIB1, which means that the terminal equipment has been working on the first bandwidth part, and the first bandwidth part includes the network equipment broadcasting SIB1 frequency domain resources , but after the network device sends the SIB1 to the terminal device through the first bandwidth part, the network device no longer periodically broadcasts the SIB1 for the sake of energy saving, and the terminal device cannot receive the SIB1 broadcast by the network device.
  • the network device may send the first SIB1 to the terminal device through unicast on the second bandwidth part before the duration of the stored SIB1 reaches the valid duration.
  • a dedicated signaling wherein the first dedicated signaling includes SIB1.
  • the parameters of the SIB1 in the first dedicated signaling and the parameters of the SIB1 currently stored by the terminal device may be the same or different.
  • the first dedicated signaling may be RRC dedicated signaling of the connection control process, for example, RRC reconfiguration (RRC reconfiguration), RRC connection establishment (RRC connection establishment), RRC connection recovery (RRC connection resume), RRC connection Reconstruction (RRC connection re-establishment).
  • RRC reconfiguration RRC reconfiguration
  • RRC connection establishment RRC connection establishment
  • RRC connection recovery RRC connection resume
  • RRC connection Reconstruction RRC connection re-establishment
  • the second bandwidth part is not configured with the configuration information of the SIB1 sent by the network device, the terminal device cannot receive the SIB1 broadcast by the network device when working on the second bandwidth part, and the network device is in the terminal device before the SIB1 becomes invalid.
  • the SIB1 is sent to the terminal device by means of dedicated signaling, and the terminal device obtains the SIB1 from the dedicated signaling, thereby realizing the periodic update of the stored SIB1, avoiding the occurrence of the terminal device deleting the SIB1 after the valid duration of the terminal device arrives.
  • the SIB1 cannot be acquired and a new SIB1 cannot be obtained, which leads to the problem of not working normally in the current cell, which helps to improve the reliability of communication.
  • the network equipment can schedule the terminal equipment to the dedicated bandwidth part, and the terminal equipment realizes data transmission on the dedicated bandwidth part, which is conducive to the rationalization of resources in the cell. distribute. And under the premise of ensuring that the terminal device periodically updates the SIB1 in the terminal device, the network device does not need to periodically broadcast the SIB1, thereby effectively reducing the consumption of the network device.
  • the network device sends the first dedicated signaling including SIB1 to the terminal device through the second bandwidth part at the first moment, which may be based on the indication information of the terminal device, or based on internal implementation. For details, refer to the following optional implementations.
  • the network device determines, based on the indication of the terminal device, to send the first dedicated signaling including the SIB1 to the terminal device at the first moment when the preset condition is met.
  • the terminal device determines the duration of the SIB1 stored in the terminal device through the timer, and when it is determined that the duration reaches the set duration of the timer, determines whether the SIB1 from the network device can be received through the second bandwidth part, and if so, then Receive the SIB1 from the network device through the second bandwidth part, otherwise, send indication information to the network device, the indication information is specifically used to instruct the network device to send the SIB1 to the terminal device, the network device receives the indication information, and responds to the indication information.
  • the first dedicated signaling including the SIB1 is sent to the terminal device.
  • the terminal device determines whether it can receive the SIB1 from the network device through the second bandwidth part, at least the following examples:
  • Example 1 If the terminal device determines that the second bandwidth part does not include the frequency domain resources for broadcasting SIB1 by the network device, it determines that the second bandwidth part is not configured with the frequency domain resources for sending SIB1 by the network device.
  • the frequency domain resource of the SIB1 broadcast by the network device may be determined by the terminal device based on the public search space and the control resource set 0 in the MIB. For details, refer to the above implementation manner, which will not be repeated here.
  • Example 2 if the terminal device determines that the second bandwidth part includes the frequency domain resources of the SIB1 broadcast by the network device, but after monitoring the PDSCH resource for the first preset duration, and determines that it cannot receive the SIB1 broadcasted by the network device, then determine the second bandwidth.
  • the bandwidth part is not configured with a time domain resource for the network device to send the SIB1.
  • the first preset duration may be greater than the period during which the network device broadcasts the SIB1, and the first preset duration may be pre-negotiated by the terminal device and the network device, or pre-determined according to a protocol.
  • the period of the network device broadcasting SIB1 is 160ms, wherein the repeated transmission interval is 20ms, the first preset duration is 200ms, and of course other values determined according to the network deployment method.
  • the terminal device can send indication information to the network device when it is determined that the duration of storing the SIB1 reaches the set duration, and the set duration can be any duration less than the effective duration of the SIB1, that is, the terminal device can determine the duration of the storage SIB1.
  • the indication information is sent to the network device at any time before the valid duration of the SIB1 is reached. Exemplarily, when it is determined that the duration of the stored SIB1 is about to reach the valid duration (it is determined that the stored SIB1 is about to expire), the indication information is sent to the network device.
  • the terminal device may, under some trigger conditions, for example, when the terminal device determines that the working bandwidth part is switched from the first bandwidth part to the second bandwidth part, or determines that the service busy rate is less than the busy rate threshold, or at other times, to the The network device sends indication information.
  • the terminal device may determine to send the indication information to the network device in combination with the trigger condition and the set duration. Exemplarily, if the terminal device determines that the trigger condition occurs before the timer reaches the set duration, the terminal device sends the indication information to the network device. Indication information; if the terminal device determines that the trigger condition has not occurred, it will send the indication information to the network device when the timer reaches the set duration.
  • the network device determines the first moment that satisfies the preset condition according to the indication information, and sends the first dedicated signaling including the SIB1 to the terminal device at the first moment.
  • the terminal device also determines the first moment that satisfies the preset condition, and receives the first dedicated signaling including the SIB1 sent by the network device at the first moment.
  • the indication information sent by the terminal device to the network device may be the first indication information or the second indication information.
  • the first indication information can be understood as SIB1 reminder information, the first indication information is used to remind the network device that the SIB1 stored in the terminal device is about to expire, and the network device needs to immediately send the first dedicated signaling including the SIB1 to the terminal device.
  • the second indication information is used to indicate the failure time of the SIB1 stored in the terminal device, and the network device needs to send the first dedicated signaling including the SIB1 to the terminal device before the failure time.
  • FIG. 3 exemplarily shows a schematic flow chart of the first network device sending SIB1, in this flow:
  • Step 301 the terminal device sends first indication information to the network device.
  • the terminal device determines through the timer that the duration of storing the SIB1 in the terminal device reaches a set duration (which may be referred to as the second preset duration), it is determined that the SIB1 stored in the terminal device is about to expire.
  • the second preset duration may be pre-negotiated by the terminal device and the network device, or pre-determined according to a protocol. For example, if the valid duration of SIB1 is 3h, and the second preset duration is 2.9h, the terminal device will send the first indication information to the network device when the duration of storing SIB1 reaches 2.9h. The remaining valid time is 0.1h.
  • Step 302 the network device determines the first time according to the first indication information.
  • the network device receives the first indication information, and determines the first time according to the first indication information, where the first time is a time within a third preset time period after the network device receives the first indication information.
  • the third preset duration is smaller than the remaining valid duration of SIB1 stored in the terminal device, so as to ensure that the terminal device receives the first dedicated signaling including SIB1 from the network device before deleting SIB1, and the third preset duration may be the terminal device and the SIB1. It is pre-negotiated by the network device, or pre-determined according to the protocol.
  • Step 303 the network device sends the first dedicated signaling including the SIB1 to the terminal device through the second bandwidth part at the first moment.
  • the terminal equipment maintenance timer is used to determine the duration of the storage of SIB1 in the terminal equipment. If the terminal equipment cannot receive the SIB1 through the second bandwidth part, when the timer reaches the second preset period, send to the network equipment. the first indication information, the network device determines to immediately send the first dedicated signaling including the SIB1 to the terminal device according to the first indication information, and the terminal device receives the first dedicated signaling and obtains the SIB1 from the first dedicated signaling, Implement periodic update of stored SIB1.
  • FIG. 4 exemplarily shows a schematic flowchart of the second type of network device sending SIB1. In this process:
  • Step 401 The terminal device sends second indication information to the network device.
  • the terminal device determines through the timer that the duration of storing SIB1 in the terminal device reaches the set duration (which may be referred to as the fourth preset duration), or when some of the above trigger conditions (handover bandwidth, business busy rate is less than the busy rate threshold, etc.) , the terminal device sends the second indication information to the network device.
  • the set duration which may be referred to as the fourth preset duration
  • some of the above trigger conditions handover bandwidth, business busy rate is less than the busy rate threshold, etc.
  • the second indication information includes expiration time information.
  • the expiration time information is used to indicate the expiration time of the SIB1 stored in the terminal device.
  • the expiration time information such as the expiration time determined by the terminal device, or the duration of the SIB1 stored in the terminal device, or The remaining valid duration of SIB1 is stored in the terminal device.
  • Step 402 the network device determines the first moment according to the second indication information.
  • the network device receives the second indication information, and determines the first time according to the failure time information in the second indication information, where the first time is before the failure time.
  • Step 403 the network device sends the first dedicated signaling including the SIB1 to the terminal device through the second bandwidth part at the first moment.
  • the second indication information includes a second time
  • the second time is the expiration time of the SIB1 stored in the terminal device.
  • the network device determines the first moment before the second moment, and then sends the first dedicated signaling including the SIB1 to the terminal device through the second bandwidth part at the first moment.
  • the valid duration of SIB1 is 3h
  • the terminal device receives the SIB1 from the network device at 10:00, starts the timer to count, and the terminal device determines that the second time is 13:00, then the terminal device can 12:00) sending second indication information to the network device, wherein the second indication information includes the second time 13:00.
  • the network device may send the first dedicated signaling including SIB1 to the terminal device at any time before 13:00 of the second time (ie, the first time, such as 12:50). .
  • the terminal device may determine that the duration of storing SIB1 reaches the effective duration and send the second indication information to the network device.
  • the network device can also determine the duration before the effective time is reached according to the failure time information in the second indication information. Send the first dedicated signaling including the SIB1 to the terminal device at any time, and on the premise of ensuring that the terminal device periodically updates the stored SIB1, it helps to improve the flexibility of the terminal device to obtain the SIB1.
  • the network device can also determine the first moment by itself, and then send the first dedicated signaling including the SIB1 to the terminal device at the first moment.
  • the second implementation is exemplarily provided in this application as follows.
  • FIG. 5 exemplarily shows a schematic flow chart of a third network device sending SIB1, in this flow:
  • Step 501 the network device determines the duration of the SIB1 stored in the terminal device.
  • the network device determines whether the terminal device can receive the SIB1 through the second bandwidth portion. Specifically, the network device may determine whether configuration information for sending SIB1 is configured on the second bandwidth portion. For example, the network device determines the configuration information of the frequency domain resources for broadcasting SIB1, and if it is determined that the second bandwidth part does not include the frequency domain resources for broadcasting SIB1 by the network device, it is determined that the terminal device cannot receive SIB1 through the second bandwidth part. For another example, if the network device determines that the SIB1 will not be broadcast within a period of time, the terminal equipment cannot receive the SIB1 within the period of time.
  • the network device determines that the terminal device cannot receive the SIB1 through the second bandwidth part, it will actively start the timing, and when it is determined that the duration of the SIB1 stored in the terminal device reaches the set duration, it sends the first dedicated signaling containing the SIB1 to the terminal device.
  • the set duration here can be any duration shorter than the effective duration of SIB1.
  • the network device needs to determine the time when the terminal device receives the SIB1 before further starting the timing.
  • the network device sends the second dedicated signaling including the SIB1 to the terminal device. If the terminal device successfully receives the SIB1 through the second dedicated signaling, it stores the received SIB1 and sends it to the network. The device sends an acknowledgement (ACK). The network device receives the ACK, and determines the time when the terminal device receives SIB1 according to the time when the second dedicated signaling is sent. The network device starts timing when the terminal device receives the SIB1 to determine the duration of the SIB1 stored in the terminal device.
  • the second dedicated signaling may be RRC dedicated signaling.
  • the network device before sending the first dedicated signaling to the terminal device, the network device sends second dedicated signaling to the terminal device, where the second dedicated signaling is different from the first dedicated signaling.
  • the network device after sending the first dedicated signaling (including SIB1) to the terminal device, the network device starts a timer, and when it is determined that the duration of the SIB1 stored in the terminal device reaches the set duration, the network device sends a message containing the SIB1 to the terminal device.
  • the first dedicated signaling can be understood as the second dedicated signaling
  • the third dedicated signaling can be understood as the first dedicated signaling.
  • the terminal device requests the SIB1 of the current cell from the network device, and if the SIB1 of the current cell is successfully requested, the SIB1 of the current cell is stored.
  • the requested SIB1 and sends an ACK to the network device.
  • the network device receives the ACK, and determines the time when the terminal device receives SIB1 according to the time when the RRC connection is established with the terminal device.
  • the network device starts timing according to the time when the terminal device receives SIB1 to determine the duration of SIB1 stored in the terminal device.
  • Step 502 the network device determines the first moment according to the duration of the SIB1 stored in the terminal device.
  • the first moment is the moment before the duration of storing the SIB1 in the terminal device reaches the valid duration.
  • Step 503 the network device sends the first dedicated signaling including the SIB1 to the terminal device through the second bandwidth part at the first moment.
  • the network device starts a timer, and the timer corresponds to a set duration.
  • the network device determines that the duration of the SIB1 stored in the terminal device reaches the set duration of the timer, Determine the first time that meets the preset condition, where the first time may be after the duration of storing the SIB1 in the terminal device reaches the set time and before the expiration time.
  • the network device may also send the first dedicated signaling including the SIB1 to the terminal device when it is determined that the triggering condition occurs.
  • the triggering condition here may refer to the description in the above-mentioned embodiment, and will not be repeated here.
  • the terminal device may or may not start the timer, that is, in this embodiment, the above step 202 is an optional step.
  • the network device determines that the terminal device cannot receive the system information block through the second bandwidth part, it actively maintains the timer to determine the duration of storing the system information block in the terminal device, and the network device determines the duration according to the timer. Before the duration reaches the effective duration, the first dedicated signaling including the system information block is sent to the terminal device, and the terminal device receives the first dedicated signaling, obtains the system information block from the first dedicated signaling, and periodically updates the stored data. System Information Block. Further, the terminal device does not need to determine whether the broadcast of the network device can be received, nor does it need to start a timer, etc., which reduces the complexity of the terminal device.
  • the present application also provides the following third implementation manner. Before the duration of storing the SIB1 in the terminal device reaches the effective duration, if it is determined that the second bandwidth part is not configured with the configuration information for the network device to send the SIB1, the currently stored SIB1 can continue to be used. , to avoid the problem that the terminal device deletes the stored SIB1, leading to mistakenly thinking that the current cell is banned.
  • the terminal device receives the SIB1 from the network device through the first bandwidth part, stores the SIB1, and starts a timer (herein, it may be referred to as a first timer), and the timing duration of the first timer is a set duration , the set duration is less than the effective duration of SIB1.
  • the terminal device determines the duration of the storage of SIB1 in the terminal device through the first timer.
  • the following examples 1 to 3 can be specifically used, which helps to avoid the occurrence of the terminal device deleting the SIB1, resulting in failure to The problem of working normally in the current cell, thereby improving the reliability of communication.
  • Example 1 the terminal device restarts the first timer, then at this time, the duration of storing SIB1 in the terminal device determined by the first timer is zero, and further, the terminal device continues to use the first timer to determine the storage SIB1 in the terminal device. duration.
  • the terminal device further includes a counter for determining the number of times to restart the first timer, and the terminal device deletes the SIB1 stored in the terminal device after determining that the number of times to restart the first timer reaches a preset number of times.
  • the terminal device extends the valid duration of the stored system information block, which is equivalent to that the terminal device continues to use the first timer to determine the duration of storage of the SIB1 in the terminal device.
  • a fifth preset duration for storing SIB1 may be set in the terminal device, and the duration for which the terminal device stores SIB1 may not exceed the fifth preset duration.
  • Example 3 the terminal device starts a second timer, and uses the second timer to determine the duration of storing the SIB1 in the terminal device.
  • the timing duration of the second timer is different from the timing duration of the first timer, for example, the timing duration of the first timer is 3h, and the timing duration of the second timer is 6h.
  • the SIB1 sent by the network device to the terminal device through the first bandwidth portion may be called the first SIB1.
  • the network device determines that the system information of the current cell has changed, it will broadcast a system information change instruction, and the system information change instruction It is used to instruct the terminal equipment in the current cell to obtain a new SIB1 (SIB1 after system information change), which can be called the second SIB1, and the parameters in the second SIB1 are different from those in the first SIB1.
  • FIG. 6 exemplarily shows a schematic flow chart of the fourth network device sending SIB1, in this flow:
  • Step 601 the network device determines that the system information of the current cell has changed, and generates a second SIB1.
  • Step 602 The network device determines that the second bandwidth portion is not configured with configuration information for sending the second SIB1.
  • the configuration information of the second bandwidth part does not include the configuration information of the second SIB1 sent by the network device. Even if the network device broadcasts the second SIB1, since the network device is not configured with configuration information for sending the second SIB1 on the second bandwidth part, the terminal device working on the second bandwidth part cannot receive the second SIB1.
  • Step 603 the network device sends the first dedicated signaling including the second SIB1 to the terminal device through the second bandwidth part.
  • the terminal device receives the first dedicated signaling from the network device, replaces the currently stored first SIB1 with the second SIB1 in the first dedicated signaling, and restarts the first timer.
  • the terminal device determines that the SIB1 cannot be received through the second bandwidth part, when the duration of the SIB1 stored in the terminal device reaches the effective duration, the stored SIB1 continues to be used until the network device receives the first dedicated SIB1.
  • the updated SIB1 sent by the signaling avoids the problem that the terminal equipment deletes the SIB1, which leads to the problem that it cannot work normally in the current cell, thereby improving the reliability of communication.
  • SIB1 is used as an example in the above embodiment, the present application is also applicable to OSI, such as any one of SIB2, ..., SIB14.
  • the network device and/or terminal device can determine the first 2. Whether the bandwidth part is configured with the time domain resource and/or frequency domain resource for the network device to send the OSI, and perform the process of obtaining the system information block in the above embodiment.
  • a practical application scenario exemplarily provided in this application includes one network device and three video surveillance devices, and the three video surveillance devices can be connected to the service cell provided by the network device. Due to the particularity of the monitoring service, the video monitoring equipment may be in the RRC connection state for a long time.
  • the network device schedules the video surveillance device from the initial bandwidth part to the activated bandwidth part, wherein the activated bandwidth part may not be configured with the configuration information of the SIB1 sent by the network device, then the video surveillance device can continue to use SIB1 received on the initial bandwidth part until the first dedicated signaling including SIB1 is received from the network device through the active bandwidth part.
  • the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device, and the methods and operations implemented by the network device can also be implemented by A component (eg, chip or circuit) implementation that can be used in a network device.
  • components such as chips or circuits
  • a component eg, chip or circuit
  • the methods provided by the embodiments of the present application are respectively introduced from the perspective of interaction between various devices.
  • the terminal device and the network device may include hardware structures and/or software modules, and the above functions are implemented in the form of hardware structures, software modules, or hardware structures plus software modules. . Whether one of the above functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • each functional module in each embodiment of the present application may be integrated into one processor, or may exist physically alone, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.
  • FIG. 7 and FIG. 8 are schematic structural diagrams of possible communication apparatuses provided by the present application. These communication apparatuses can be used to implement the functions of the terminal equipment or the network equipment in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.
  • the communication device 700 includes a processing module 701 and a transceiver module 702 .
  • the communication apparatus 700 is configured to implement the function of the network device or the function of the terminal device in the above-mentioned embodiments related to FIG. 2 to FIG. 6 .
  • the communication apparatus 700 may be a network device, or may be a chip applied in the network device or other combined devices, components, etc. having the functions of the above-mentioned network device.
  • the communication apparatus 700 may also be a terminal device, or may be a chip applied in the terminal device or other combined devices, components and the like having the functions of the above-mentioned terminal device.
  • the transceiver module 702 may be a transceiver, the transceiver may include an antenna and a radio frequency circuit, etc., and the processing module 701 may be a processor (or a processing circuit), such as a baseband processor, One or more CPUs may be included in the baseband processor.
  • the transceiver module 702 may be a radio frequency unit, and the processing module 701 may be a processor (or a processing circuit), such as a baseband processor.
  • the transceiver module 702 may be an input/output interface of a chip (eg, a baseband chip), and the processing module 701 may be a processor (or a processing circuit) of the chip system, which may include one or more central processing units. module. It should be understood that the processing module 701 in this embodiment of the present application may be implemented by a processor or a processor-related circuit component (or referred to as a processing circuit), and the transceiver module 702 may be implemented by a transceiver or a transceiver-related circuit component.
  • FIG. 8 shows a communication apparatus 800 provided by an embodiment of the present application.
  • the communication apparatus shown in FIG. 8 may be an implementation of a hardware circuit of the communication apparatus shown in FIG. 7 .
  • the communication apparatus can be applied to the flow chart shown above to perform the functions of the terminal device or the network device in the above method embodiments.
  • FIG. 8 only shows the main components of the communication device.
  • the communication apparatus 800 shown in FIG. 8 includes at least one processor 820, configured to implement any one of the methods in FIG. 2 to FIG. 6 provided by the embodiments of the present application.
  • Communication apparatus 800 may also include at least one memory 830 for storing program instructions and/or data.
  • Memory 830 is coupled to processor 820 .
  • the coupling in the embodiments of the present application is an indirect coupling or 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.
  • Processor 820 may cooperate with memory 830 .
  • Processor 820 may execute program instructions stored in memory 830 . At least one of the at least one memory may be included in the processor.
  • the communication apparatus 800 shown in FIG. 8 includes at least one processor 820 and a communication interface 810 , and the processor 820 is configured to execute the instructions or programs stored in the memory 830 .
  • the processor 820 is configured to perform the operations performed by the processing module 701 in the above embodiments
  • the communication interface 810 is configured to perform operations performed by the transceiver module 702 in the above embodiments.
  • the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • the transceiver when the communication interface is a transceiver, the transceiver may include an independent receiver and an independent transmitter; it may also be a transceiver integrating a transceiver function, or a communication interface.
  • Communication device 800 may also include communication line 840 .
  • the communication interface 810, the processor 820 and the memory 830 can be connected to each other through a communication line 840; the communication line 840 can be a peripheral component interconnect (PCI for short) bus or an extended industry standard architecture (extended industry standard architecture). , referred to as EISA) bus and so on.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the communication line 840 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.
  • the present application provides a communication device including a processor and a communication interface, the communication interface being used for receiving signals from other communication devices other than the communication device and transmitting to the processor or transferring the signals from the processor Sent to other communication devices other than the communication device, the processor is used to implement the function of the network device or the function of the terminal device in the method embodiments shown in FIG. 2 to FIG. 6 through a logic circuit or executing code instructions.
  • the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed by a communication device, the implementation shown in FIGS.
  • the present application provides a computer program product
  • the computer program product includes a computer program or an instruction
  • the computer program or instruction when executed by a communication device, implements the network of the method embodiments shown in FIG. 2 to FIG. 6 .
  • the present application provides a communication system, including the network device in the method embodiments shown in FIG. 2 to FIG. 6 and the terminal device in the method embodiments shown in FIG. 2 to FIG. 6 .
  • the present application provides a chip including at least one processor and an interface
  • At least one processor is configured to execute program line instructions to implement the function of the network device or the function of the terminal device in the method embodiments shown in FIG. 2 to FIG. 6 .
  • At least one means one or more, and “plurality” means two or more.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • at least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, c can be single or multiple.

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Abstract

一种系统信息块传输方法及通信装置，用于解决终端设备不能在激活带宽部分上接收来自网络设备广播的系统信息块的问题。在本申请中，网络设备通过第一带宽部分向终端设备发送系统信息块；网络设备确定到达满足预设条件的第一时刻时，在第一时刻通过第二带宽部分向终端设备发送系统信息块，系统信息块包含在第一专用信令里，其中第二带宽部分上未配置有网络设备发送系统信息块的配置信息。

Description

一种系统信息块传输方法及通信装置 技术领域
本申请涉及通信技术领域，尤其涉及一种系统信息块传输方法及通信装置。
背景技术
在移动通信系统中，例如新无线(new radio，NR)系统或者长期演进(long term evolution，LTE)系统，终端设备通过小区搜索与小区取得下行同步之后，需要获取到小区的系统信息(system information，SI)，以便接入该小区并在该小区内正常地工作。
系统信息主要包括：主信息块(master information block，MIB)、系统信息块(system information block，SIB)等。示例性的，NR系统中定义了14种类型的SIB：从SIB类型(type)1到SIB类型14，分别简称为SIB1，SIB2，…，SIB14。除SIB1之外的SIB也称其他系统信息(other system information，OSI)。
终端设备处于无线资源控制(radio resource control，RRC)非连接态时，终端设备被调度在初始带宽部分上工作，终端设备可通过初始带宽部分接收来自网络设备广播的SIB1。当终端设备处于RRC连接态时，终端设备被调度在激活带宽部分上工作，终端设备在激活部分带宽上可能接收不到网络设备广播的SIB1，不能在当前小区中正常工作，降低了通信的可靠性。
发明内容
本申请提供一种系统信息块传输方法及通信装置，用于解决终端设备在激活带宽部分上不能接收来自网络设备广播的系统信息块的问题。
第一方面，本申请提供一种系统信息块传输方法，包括：网络设备通过第一带宽部分向终端设备发送系统信息块；网络设备确定到达满足预设条件的第一时刻时，在第一时刻通过第二带宽部分向终端设备发送系统信息块，系统信息块包含在第一专用信令里，其中第二带宽部分上未配置有网络设备发送系统信息块的配置信息。
上述技术方案中，第二带宽部分上未配置有网络设备发送系统信息块的配置信息，终端设备在第二带宽部分上工作时接收不到网络设备广播的系统信息块，网络设备在终端设备中系统信息块失效之前的第一时刻，通过专用信令方式向终端设备发送系统信息块，终端设备从该专用信令中获取系统信息块，从而实现周期性更新存储的系统信息块，避免出现终端设备中系统信息块的有效时长到达之后，终端设备删除系统信息块且无法获取新的系统信息块，导致不能在当前小区中正常工作的问题，提高了通信的可靠性。
在一种可能的实现方式中，网络设备确定到达满足预设条件的第一时刻，包括：网络设备接收来自终端设备的第一指示信息，第一指示信息用于指示终端设备中存储的系统信息块即将失效；网络设备根据第一指示信息确定第一时刻。
上述技术方案中，终端设备维护计时器用于确定终端设备中存储系统信息块的持续时长，若终端设备不能通过第二带宽部分接收到网络设备广播的系统信息块，则在该持续时长到达计时器的设定时长时，向网络设备发送第一指示信息，网络设备根据该第一指示信息，确定立即向终端设备发送包括有系统信息块的第一专用信令，终端设备接收该第一专 用信令，从第一专用信令中获取系统信息块，实现周期性更新存储的系统信息块。
在一种可能的实现方式中，网络设备确定到达满足预设条件的第一时刻，包括：网络设备接收来自终端设备的第二指示信息，第二指示信息包括第二时刻，第二时刻是终端设备中存储的系统信息块的失效时刻；网络设备根据第二指示信息确定第一时刻，第一时刻在第二时刻之前。
上述技术方案中，终端设备可以确定存储系统信息块的持续时长到达有效时长之前的任一时刻向网络设备发送第二指示信息，示例性的，在确定存储系统信息块的持续时长到达计时器的设定时长时，或者在由第一带宽部分切换至第二带宽部分时，或者在业务繁忙率小于繁忙率阈值时，相应的，网络设备也可以根据第二指示信息中的失效时刻，确定在持续时长到达有效时长之前的任一时刻向终端设备发送包括有系统信息块的第一专用信令，在保障终端设备周期性更新存储的系统信息块的前提下，有助于提高了终端设备获取系统信息块的灵活性。
在一种可能的实现方式中，网络设备确定到达满足预设条件的第一时刻，包括：网络设备从网络设备与终端设备建立RRC连接的时刻开始计时设定时长，第一时刻不早于设定时长超时的时刻。
在一种可能的实现方式中，网络设备确定到达满足预设条件的第一时刻，包括：网络设备从网络设备通过第二专用信令向终端设备发送系统信息块的时刻开始计时设定时长，第一时刻不早于设定时长超时的时刻。
上述技术方案中，网络设备若确定终端设备不能通过第二带宽部分接收到系统信息块，则主动维护计时器以确定终端设备中存储系统信息块的持续时长，网络设备在确定该持续时长到达设定时长时，向终端设备发送包括有系统信息块的第一专用信令，终端设备接收该第一专用信令，从第一专用信令中获取系统信息块，实现周期性更新存储的系统信息块。进一步的，终端设备无需判断是否可以接收到网络设备的广播，也无需启动计时器等，降低了终端设备的复杂度。
在一种可能的实现方式中，第二带宽部分上未配置有网络设备发送系统信息块的配置信息，包括：网络设备发送系统信息块的配置信息中包括网络设备广播系统信息块的频域资源，第二带宽部分上不包括频域资源。上述技术方案中，在保障终端设备中存储有效系统信息块的前提下，网络设备可以将终端设备调度至专用带宽部分上，终端设备在专用带宽部分上实现数据传输，有助于小区内资源的合理分配。
在一种可能的实现方式中，第二带宽部分上未承载有网络设备周期性广播的系统信息块。可选的，第二带宽部分与第一带宽部分相同。上述技术方案中，在保障终端设备中存储有效系统信息块的前提下，网络设备无需周期性广播系统信息块，从而有效减少网络设备的消耗。
第二方面，本申请提供一种系统信息块传输方法，包括：终端设备通过第一带宽部分接收来自网络设备的系统信息块；终端设备存储系统信息块，并启动计时器，计时器的计时时长为设定时长；终端设备在计时器计时超时时，通过第二带宽部分接收来自网络设备的系统信息块，通过第二带宽部分接收的系统信息块包含在第一专用信令里，其中第二带宽部分上未配置有网络设备发送系统信息块的配置信息。
上述技术方案中，终端设备在接收到网络设备的系统信息块之后，可以启动计时器，确定当前存储系统信息块的持续时长，若终端设备不能通过第二带宽部分接收到网络设备 广播的系统信息块，则在该持续时长到达计时器的设定时长(也即计时器计时达到设定时长)时，通过第二带宽部分接收来自网络设备的包括有系统信息块的第一专用信令，避免出现终端设备删除系统信息块且无法获取新的系统信息块，导致不能在当前小区中正常工作的问题，从而提高通信的可靠性。
在一种可能的实现方式中，还包括：终端设备在计时器计时超时时，向网络设备发送第一指示信息，第一指示信息用于指示终端设备中存储的系统信息块即将失效。
上述技术方案中，若终端设备不能通过第二带宽部分接收到网络设备广播的系统信息块，则根据计时器确定的终端设备中存储系统信息块的持续时长到达设定时长时，向网络设备发送第一指示信息，网络设备根据该第一指示信息，确定立即向终端设备发送包括有系统信息块的第一专用信令，终端设备接收该第一专用信令，从第一专用信令中获取系统信息块，实现周期性更新存储的系统信息块。
在一种可能的实现方式中，还包括：终端设备在计时器计时超时时，向网络设备发送第二指示信息，第二指示信息包括第二时刻，第二时刻是终端设备中存储的系统信息块的失效时刻。
上述技术方案中，终端设备可以确定存储系统信息块的持续时长到达有效时长之前的任一时刻向网络设备发送第二指示信息，示例性的，在确定存储系统信息块的持续时长到达计时器的设定时长时，或者在由第一带宽部分切换至第二带宽部分时，或者在业务繁忙率小于繁忙率阈值时，相应的，网络设备也可以根据第二指示信息中的失效时刻，确定在持续时长到达有效时长之前的任一时刻向终端设备发送包括有系统信息块的第一专用信令，在保障终端设备周期性更新存储的系统信息块的前提下，有助于提高了终端设备获取系统信息块的灵活性。
在一种可能的实现方式中，第二带宽部分上未配置有网络设备发送系统信息块的配置信息，包括：网络设备发送系统信息块的配置信息中包括网络设备广播系统信息块的频域资源，第二带宽部分上不包括频域资源。上述技术方案中，在保障终端设备中存储有效系统信息块的前提下，网络设备可以将终端设备调度至专用带宽部分上，终端设备在专用带宽部分上实现数据传输，有助于小区内资源的合理分配。
在一种可能的实现方式中，第二带宽部分上未承载有网络设备周期性广播的系统信息块。可选的，第二带宽部分与第一带宽部分相同。上述技术方案中，在保障终端设备中存储有效系统信息块的前提下，网络设备无需周期性广播的系统信息块，从而有效减少网络设备的消耗。
第三方面，本申请提供一种系统信息块传输方法，包括：
终端设备通过第一带宽部分接收来自网络设备的系统信息块；终端设备存储系统信息块，并启动第一计时器，第一计时器的计时时长为设定时长；终端设备在第一计时器计时超时时，若未在第二带宽部分上接收到来自网络设备的系统信息块，则继续使用存储的系统信息块，其中第二带宽部分上未配置有网络设备发送系统信息块的配置信息。
上述技术方案中，终端设备在接收到网络设备的系统信息块之后，可以启动计时器，确定当前存储系统信息块的持续时长，终端设备若确定不能通过第二带宽部分接收到系统信息块，则在终端设备中存储的系统信息块的持续时长到达有效时长时，继续使用存储的系统信息块，直至接收到网络设备通过第一专用信令发送的更新后的系统信息块，避免出现终端设备删除系统信息块且无法获取新的系统信息块，导致不能在当前小区中正常工作 的问题，从而提高通信的可靠性。
在一种可能的实现方式中，终端设备继续使用存储的系统信息块，包括：终端设备延长存储的系统信息块的有效时长；或终端设备重新启动第一计时器；或终端设备启动第二计时器，第二计时器和第一计时器的计时时长不同。
在一种可能的实现方式中，第二带宽部分上未配置有网络设备发送系统信息块的配置信息，包括：网络设备发送系统信息块的配置信息中包括网络设备广播系统信息块的频域资源，第二带宽部分上不包括频域资源。上述技术方案中，在保障终端设备中存储有效系统信息块的前提下，网络设备可以将终端设备调度至专用带宽部分上，终端设备在专用带宽部分上实现数据传输，有助于小区内资源的合理分配。
在一种可能的实现方式中，第二带宽部分上未承载有网络设备周期性广播的系统信息块。可选的，第二带宽部分与第一带宽部分相同。上述技术方案中，在保障终端设备中存储有效系统信息块的前提下，网络设备无需周期性广播的系统信息块，从而有效减少网络设备的消耗。
第四方面，本申请实施例提供一种通信装置，包括处理模块和收发模块；
在一种可能的实现方式中，处理模块用于控制收发模块通过第一带宽部分向终端设备发送系统信息块；处理模块还用于确定到达满足预设条件的第一时刻时，控制收发模块在第一时刻通过第二带宽部分向终端设备发送系统信息块，系统信息块包含在第一专用信令里，其中第二带宽部分上未配置有网络设备发送系统信息块的配置信息。
在一种可能的实现方式中，处理模块具体用于控制收发模块接收来自终端设备的第一指示信息，第一指示信息用于指示终端设备中存储的系统信息块即将失效；根据第一指示信息确定第一时刻。
在一种可能的实现方式中，处理模块具体用于控制收发模块接收来自终端设备的第二指示信息，第二指示信息包括第二时刻，第二时刻是终端设备中存储的系统信息块的失效时刻；根据第二指示信息确定第一时刻，第一时刻在第二时刻之前。
在一种可能的实现方式中，处理模块具体用于从通信装置与终端设备建立RRC连接的时刻开始计时设定时长，第一时刻不早于设定时长超时的时刻。
在一种可能的实现方式中，处理模块具体用于从通信装置通过第二专用信令向终端设备发送系统信息块的时刻开始计时设定时长，第一时刻不早于设定时长超时的时刻。
在一种可能的实现方式中，处理模块控制收发模块发送系统信息块的配置信息中包括收发模块广播系统信息块的频域资源，第二带宽部分上不包括频域资源。
在一种可能的实现方式中，第二带宽部分上未承载有网络设备周期性广播的系统信息块。可选的，第二带宽部分与第一带宽部分相同。
第五方面，本申请实施例提供一种通信装置，包括处理模块和收发模块；
在一种可能的实现方式中，处理模块用于控制收发模块通过第一带宽部分接收来自网络设备的系统信息块；处理模块还用于存储系统信息块，并启动计时器，计时器的计时时长为设定时长；处理模块还用于在计时器计时超时时，控制收发模块通过第二带宽部分接收来自网络设备的系统信息块，通过第二带宽部分接收的系统信息块包含在第一专用信令里，其中第二带宽部分上未配置有网络设备发送系统信息块的配置信息。
在一种可能的实现方式中，处理模块还用于在计时器计时超时时，控制收发模块向网络设备发送第一指示信息，第一指示信息用于指示终端设备中存储的系统信息块即将失效。
在一种可能的实现方式中，处理模块还用于在计时器计时超时时，控制收发模块向网络设备发送第二指示信息，第二指示信息包括第二时刻，第二时刻是终端设备中存储的系统信息块的失效时刻。
在一种可能的实现方式中，处理模块控制收发模块发送系统信息块的配置信息中包括收发模块广播系统信息块的频域资源，第二带宽部分上不包括频域资源。
在一种可能的实现方式中，第二带宽部分上未承载有网络设备周期性广播的系统信息块。可选的，第二带宽部分与第一带宽部分相同。
第六方面，本申请实施例提供一种通信装置，包括处理模块和收发模块；
在一种可能的实现方式中，处理模块用于控制收发模块通过第一带宽部分接收来自网络设备的系统信息块；处理模块还用于存储系统信息块，并启动第一计时器，第一计时器的计时时长为设定时长；处理模块还用于在第一计时器计时超时时，若未在第二带宽部分上接收到来自网络设备的系统信息块，则继续使用存储的系统信息块，其中第二带宽部分上未配置有网络设备发送系统信息块的配置信息。
在一种可能的实现方式中，处理模块具体用于延长存储的系统信息块的有效时长；或重新启动第一计时器；或启动第二计时器，第二计时器和第一计时器的计时时长不同。
在一种可能的实现方式中，处理模块控制收发模块发送系统信息块的配置信息中包括收发模块广播系统信息块的频域资源，第二带宽部分上不包括频域资源。
在一种可能的实现方式中，第二带宽部分上未承载有网络设备周期性广播的系统信息块。可选的，第二带宽部分与第一带宽部分相同。
第七方面，本申请提供一种通信装置，包括处理器和通信接口，通信接口用于接收来自通信装置之外的其它通信装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它通信装置，处理器通过逻辑电路或执行代码指令用于实现上述第一方面或第一方面的任意可能的实现方式中的方法、或者第二方面或第二方面的任意可能的实现方式中的方法、或者第三方面或第三方面的任意可能的实现方式中的方法。
第八方面，本申请提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令被通信装置执行时，使得该通信装置实现上述第一方面或第一方面的任意可能的实现方式中的方法、或者第二方面或第二方面的任意可能的实现方式中的方法、或者第三方面或第三方面的任意可能的实现方式中的方法。
第九方面，本申请提供一种计算机程序产品，计算机程序产品包括计算机程序或指令，当计算机程序或指令被通信装置执行时，使得该通信装置实现上述第一方面或第一方面的任意可能的实现方式中的方法、或者第二方面或第二方面的任意可能的实现方式中的方法、或者第三方面或第三方面的任意可能的实现方式中的方法。
第十方面，本申请提供一种通信系统，包括上述第四方面或第四方面的任意可能的实现方式中的通信装置和上述第五方面或第五方面的任意可能的实现方式中的通信装置；或者包括上述第六方面或第六方面的任意可能的实现方式中的通信装置。
第十一方面，本申请提供一种芯片，包括至少一个处理器和接口；
接口，用于为至少一个处理器提供程序指令或者数据；
至少一个处理器用于执行程序行指令，以实现上述第一方面或第一方面的任意可能的实现方式中的方法、或者实现第二方面或第二方面的任意可能的实现方式中的方法、或者第三方面或第三方面的任意可能的实现方式中的方法。
上述第四方面至第十一方面中任一方面可以达到的技术效果可以参照上述第一方面至第三方面中有益效果的描述，此处不再重复赘述。
附图说明
图1为本申请提供的一种通信系统架构示意图；
图2为本申请提供的一种SIB1传输方法的流程示意图；
图3为本申请提供的第一种网络设备发送SIB1的流程示意图；
图4为本申请提供的第二种网络设备发送SIB1的流程示意图；
图5为本申请提供的第三种网络设备发送SIB1的流程示意图；
图6为本申请提供的第四种网络设备发送SIB1的流程示意图；
图7为本申请提供的一种通信装置的结构示意图；
图8为本申请提供的另一种通信装置的结构示意图。
具体实施方式
下面将结合附图，对本申请实施例进行详细描述。
本申请提供的方法可以应用于第五代(5G)通信系统中，或者还可以应用于未来通信发展中出现的新的通信系统等。
举例来说，本申请实施例提供的方法可以应用于图1所示的通信系统中，其中，网络设备和3个终端设备(分别用UE1～UE3表示)组成一个单小区通信系统，UE1～UE3可以分别或同时发送上行数据给网络设备，网络设备可以分别或同时发送下行数据给UE1～UE3。应理解，图1仅是一种示例性说明，并不对通信系统中包括的终端设备、网络设备的数量、网络设备覆盖的小区数量进行具体限定。
本申请实施例中涉及的终端设备，是用户侧的一种用于接收或发射信号的实体。终端设备可以是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。终端设备也可以是连接到无线调制解调器的其他处理设备。终端设备可以与无线接入网(radio access network，RAN)进行通信。终端设备也可以称为无线终端、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(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户设备(user device)、或用户设备(user equipment，UE)等等。常见的终端设备例如包括：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、视频监控设备、可穿戴设备，例如智能手表、智能手环、计步器等，但本申请实施例不限于此。
本申请实施例中所涉及的网络设备，是网络侧的一种用于发射或接收信号的实体，可以用于将收到的空中帧与网络协议(internet protocol，IP)分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可以包括IP网络等。网络设备还可以协调对空中接口的属性管理。例如，网络设备可以是新无线控制器(new radio controller，NR controller)，可以是5G系统中的gNode B(gNB)，可以是集中式网元(centralized unit)，可以是新无线基站，可以是射频拉远模块，可以是微基站，可以是中 继(relay)，可以是分布式网元(distributed unit)，可以是接收点(transmission reception point，TRP)或传输点(transmission point，TP)或者任何其它无线接入设备，但本申请实施例不限于此。网络设备可以覆盖1个或多个小区。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
5G系统中支持配置带宽部分(bandwidth part，BWP)，网络设备可以根据终端设备的业务数据量灵活调整带宽，以节省终端设备的功耗。
当终端设备处于RRC非连接态时，网络设备为终端设备配置初始带宽部分(initial BWP)，初始带宽部分包括网络设备广播SIB1的频域资源，终端设备在初始带宽部分上通过小区搜索与小区取得下行同步，得到小区的物理小区标识(physical cell identifier，PCI)。终端设备根据小区的PCI，解析物理广播信道(physical broadcast channel，PBCH)中承载的主信息块(master information block，MIB)，然后根据MIB进一步获得SIB1的传输资源，终端设备在SIB1的传输资源上接收SIB1，其中SIB1作为小区特定的SIB消息，包含了OSI的调度信息。终端设备根据小区的SIB，接入小区并在小区内工作。
终端设备处于RRC连接态时，网络设备可以为终端设备配置多个专用带宽部分(dedicated BWP)，网络设备可以通过动态指示来激活终端设备的专用带宽部分(激活带宽部分(active BWP))，终端设备工作在该激活带宽部分。需要指出的是，本申请中，当终端设备被调度到某个专用带宽部分时，该专用带宽部分又可以称为是激活带宽部分。
终端设备中存储的SIB1具有有效时长，可以是3h，当终端设备中存储SIB1的持续时长达到有效时长时，会删除存储的SIB1并执行获取新的SIB1的流程。此时，若终端设备工作的激活带宽部分中不包括网络设备广播SIB1的频域资源，则终端设备不能接收到来自网络设备广播的当前小区的SIB1。终端设备误认为当前小区被禁，执行小区重选过程。
基于此，本申请提供一种系统信息块传输方法，在终端设备不能获取网络设备广播的系统信息块时，通过专用信令方式获取该系统信息块，避免出现终端设备误认为当前小区被禁并执行小区重选过程的问题。
本申请中，系统信息块可以是SIB1或者OSI，OSI比如SIB2，…，SIB14中任一个，为方便说明，如下可以以系统信息块为SIB1举例说明。
如图2为本申请示例性提供的一种SIB1传输方法的流程示意图，该流程中：
步骤201，网络设备通过第一带宽部分向终端设备发送SIB1。
相应的，终端设备通过第一带宽部分接收来自网络设备的SIB1。
第一带宽部分上配置有网络设备发送SIB1的配置信息，当终端设备工作在第一带宽部分时，可以接收到来自网络设备的SIB1。第一带宽部分可以是网络设备为终端设备配置的初始带宽部分，或者是网络设备为终端设备配置一个专用带宽部分。
一种具体实现方式中，第一带宽部分中包括网络设备广播SIB1的频域资源，终端设备通过第一带宽部分接收网络设备广播的SIB1。示例性的，网络设备广播MIB，其中MIB指示公共搜索空间(common search space，CSS)和控制资源集合(control resource set，CORESET)0，终端设备根据MIB中公共搜索空间和控制资源集合0，确定网络设备用于发送SIB1的调度信息的物理下行控制信道(physical downlink control channel，PDCCH)资 源，然后在该PDCCH资源上接收来自网络设备广播的SIB1的调度信息，根据SIB1的调度信息确定网络设备广播SIB1的物理下行共享信道(physical downlink shared channel，PDSCH)资源，终端设备在该PDSCH资源上接收来自网络设备广播的SIB1。
步骤202，终端设备存储系统信息块，并启动计时器。
SIB1对应有效时长，有效时长可以是3h或其他数值，终端设备中存储SIB1的持续时长需不超过SIB1对应的有效时长。进一步的，终端设备启动的计时器用于确定终端设备中存储SIB1的持续时长，该计时器的计时时长为设定时长，该设定时长小于SIB1对应的有效时长。示例性的，终端设备可以在通过第一带宽部分接收到SIB1之后，启动计时器用于确定终端设备中存储SIB1的持续时长，计时器的计时时长比如2.9h。
步骤203，网络设备确定到达满足预设条件的第一时刻时，在第一时刻通过第二带宽部分向终端设备发送包括有SIB1的第一专用信令。第一时刻不早于设定时长超时的时刻。
终端设备在第一时刻时工作在第二带宽部分上，第二带宽部分可以是网络设备为终端设备配置的一个专用带宽部分，应理解，当终端设备工作在第二带宽部分时，该第二带宽部分被激活，该第二带宽部分可以称为激活带宽部分。第二带宽部分上未配置有网络设备发送SIB1的配置信息，则终端设备不能通过第二带宽部分接收来自网络设备广播的SIB1。具体如下述两种情况：
情况一、第二带宽部分与第一带宽部分为不同带宽部分。
第一个示例，第一带宽部分是网络设备为终端设备配置的初始带宽部分，第二带宽部分是网络设备为终端设备配置的一个专用带宽部分。终端设备处于RRC非连接态时，网络设备可以为终端设备配置初始带宽部分，终端设备通过初始带宽部分与网络设备建立RRC连接，然后网络设备将该终端设备由初始带宽部分调度至激活带宽部分。
第二个示例，第一带宽部分是网络设备为终端设备配置的一个专用带宽部分，第二带宽部分是网络设备为终端设备配置的另一个专用带宽部分。网络设备可以将终端设备由一个专用带宽部分调度至另一个专用带宽部分。
在第二个示例中，第一带宽部分和第二带宽部分可以通过标识(identity，ID)指示，网络设备为终端设备配置四个专用带宽部分，分别对应ID：BWP0至BWP3，比如终端设备工作在BWP3对应的专用带宽部分上，然后接收到来自网络设备的切换信息，该切换信息中可以包括BWP1，用于指示终端设备由BWP3对应的专用带宽部分切换至BWP1对应的专用带宽部分，此时，BWP3对应的专用带宽部分为第一带宽部分，BWP1对应的专用带宽部分为第二带宽部分。
在情况一中，第二带宽部分上未配置有网络设备广播SIB1的频域资源和/或时域资源。
若第二带宽部分上未配置有网络设备广播SIB1的频域资源，也即第二带宽部分上不包括网络设备广播SIB1的频域资源，网络设备虽然可能广播SIB1，但是由于终端设备工作在第二带宽部分上，则接收不到网络设备广播的SIB1。
若第二带宽部分上未配置有网络设备广播SIB1的时域资源，虽然第二带宽部分可能包括网络设备广播SIB1的频域资源，但是由于网络设备出于节能考虑，不再周期性广播SIB1，则终端设备接收不到网络设备广播的SIB1。
若第二带宽部分上未配置有网络设备广播SIB1的时域资源和频域资源，则终端设备接收不到网络设备广播的SIB1，具体可参见描述。
情况二、第一带宽部分与第二带宽部分为相同带宽部分。
相当于情况一中第二带宽部分上未配置有网络设备广播SIB1的时域资源，解释为，终端设备一直工作在第一带宽部分上，第一带宽部分上包括网络设备广播SIB1的频域资源，但是网络设备在通过第一带宽部分向终端设备发送SIB1后，网络设备出于节能考虑，不再周期性广播SIB1，终端设备接收不到网络设备广播的SIB1。
为了避免终端设备因存储SIB1的持续时长达到有效时长之后删除存储的SIB1，网络设备可以在终端设备存储SIB1的持续时长达到有效时长之前，在第二带宽部分上通过单播方式向终端设备发送第一专用信令，其中第一专用信令包括有SIB1。此处，第一专用信令中SIB1的参数和终端设备当前存储的SIB1的参数可以相同或不同。
示例性的，第一专用信令可以是连接控制过程的RRC专用信令，比如，RRC重配置(RRC reconfiguration)、RRC连接建立(RRC connection establishment)、RRC连接恢复(RRC connection resume)、RRC连接重建(RRC connection re-establishment)。
上述技术方案中，第二带宽部分上未配置有网络设备发送SIB1的配置信息，终端设备在第二带宽部分上工作时接收不到网络设备广播的SIB1，网络设备在终端设备中SIB1失效之前的第一时刻，通过专用信令方式向终端设备发送SIB1，终端设备从该专用信令中获取SIB1，从而实现周期性更新存储的SIB1，避免出现终端设备中SIB1的有效时长到达之后，终端设备删除SIB1且无法获取新的SIB1，导致不能在当前小区中正常工作的问题，有助于提高通信的可靠性。
进一步的，在保障终端设备周期性更新终端设备中SIB1的前提下，网络设备可以将终端设备调度至专用带宽部分上，终端设备在专用带宽部分上实现数据传输，有助于小区内资源的合理分配。以及在保障终端设备周期性更新终端设备中SIB1的前提下，网络设备无需周期性广播SIB1，从而有效减少网络设备的消耗。
网络设备在第一时刻通过第二带宽部分向终端设备发送包括有SIB1的第一专用信令，具体可以是基于终端设备的指示信息，或者基于内部实现，具体可参照如下可选实现方式。
第一种可选实现方式中，网络设备基于终端设备的指示，确定在符合预设条件的第一时刻向终端设备发送包括有SIB1的第一专用信令。
具体的，终端设备通过计时器确定终端设备中存储SIB1的持续时长，在确定该持续时长到达计时器的设定时长时，确定是否可以通过第二带宽部分接收来自网络设备的SIB1，若是，则通过第二带宽部分接收来自网络设备的SIB1，否则，向网络设备发送指示信息，该指示信息具体用于指示网络设备向终端设备发送SIB1，网络设备接收该指示信息，响应于该指示信息，在第一时刻向终端设备发送包括有SIB1的第一专用信令。
终端设备确定是否可以通过第二带宽部分接收来自网络设备的SIB1，至少有如下示例：
示例一，终端设备若确定第二带宽部分不包括网络设备广播SIB1的频域资源，则确定第二带宽部分上未配置有网络设备发送SIB1的频域资源。网络设备广播SIB1的频域资源可以是终端设备基于MIB中公共搜索空间和控制资源集合0确定，具体可参见上述实现方式，此处不再赘述。
示例二，终端设备若确定第二带宽部分包括网络设备广播SIB1的频域资源，但是在PDSCH资源上监听第一预设时长后，确定接收不到来自网络设备的广播的SIB1，则确定第二带宽部分上未配置有网络设备发送SIB1的时域资源。本申请中，第一预设时长可以大于网络设备广播SIB1的周期，第一预设时长可以是终端设备和网络设备预先协商的，或者根据协议预先确定的。示例性的，网络设备广播SIB1的周期为160ms，其中重复传输 间隔为20ms，第一预设时长是200ms，当然还可以是依据网络部署方式确定的其他数值。
终端设备可以在确定存储SIB1的持续时长到达设定时长时向网络设备发送指示信息，该设定时长可以是小于SIB1有效时长的任一时长，也即，终端设备可以在确定存储SIB1的持续时长到达SIB1有效时长之前的任一时刻向网络设备发送指示信息，示例性的，在确定存储SIB1的持续时长即将到达有效时长(确定存储的SIB1即将失效)时，向网络设备发送指示信息。此外，终端设备还可以在一些触发条件下，比如终端设备在确定工作带宽部分由第一带宽部分切换至第二带宽部分时，或者在确定业务繁忙率小于繁忙率阈值时，或者其他时刻，向网络设备发送指示信息。
此处，触发条件发生于终端设备中SIB1失效之前。在一些实施例中，终端设备可以结合触发条件和设定时长确定向网络设备发送指示信息，示例性的，若计时器计时到达设定时长之前，终端设备确定触发条件发生，则向网络设备发送指示信息；若终端设备确定触发条件一直未发生，则在计时器计时到达设定时长时，向网络设备发送指示信息。
相应的，网络设备根据该指示信息确定满足预设条件的第一时刻，并在该第一时刻向终端设备发送包括有SIB1的第一专用信令。终端设备同样确定满足预设条件的第一时刻，并在该第一时刻接收网络设备发送的包括有SIB1的第一专用信令。
终端设备向网络设备发送的指示信息可以是第一指示信息或第二指示信息。其中第一指示信息可以理解为SIB1提醒信息，该第一指示信息用于提醒网络设备终端设备中存储的SIB1即将失效，网络设备需要立即向终端设备发送包括有SIB1的第一专用信令。第二指示信息用于指示终端设备中存储的SIB1的失效时刻，网络设备需要在失效时刻之前向终端设备发送包括有SIB1的第一专用信令。具体可参照如下实施例。
如图3示例性示出第一种网络设备发送SIB1的流程示意图，该流程中：
步骤301，终端设备向网络设备发送第一指示信息。
终端设备通过计时器确定终端设备中存储SIB1的持续时长到达设定时长(可以称为第二预设时长)时，确定终端设备中存储的SIB1即将失效。本申请中，第二预设时长可以是终端设备和网络设备预先协商的，或者根据协议预先确定的。比如，SIB1的有效时长为3h，第二预设时长为2.9h，则终端设备确定存储SIB1的持续时长到达2.9h时，向网络设备发送第一指示信息，此时，终端设备中存储SIB1的剩余有效时长为0.1h。
步骤302，网络设备根据第一指示信息确定第一时刻。
网络设备接收第一指示信息，根据第一指示信息确定第一时刻，其中第一时刻是网络设备接收到第一指示信息后的第三预设时长之内的时刻。
第三预设时长小于终端设备中存储SIB1的剩余有效时长，从而保障终端设备在删除SIB1之前接收到来自网络设备的包括有SIB1的第一专用信令，第三预设时长可以是终端设备和网络设备预先协商的，或者根据协议预先确定的。
步骤303，网络设备在第一时刻通过第二带宽部分向终端设备发送包括有SIB1的第一专用信令。
上述技术方案中，终端设备维护计时器用于确定终端设备中存储SIB1的持续时长，若终端设备不能通过第二带宽部分接收到SIB1，则在计时器达到第二预设时长时，向网络设备发送第一指示信息，网络设备根据该第一指示信息，确定立即向终端设备发送包括有SIB1的第一专用信令，终端设备接收该第一专用信令，从第一专用信令中获取SIB1，实现周期性更新存储的SIB1。
如图4示例性示出第二种网络设备发送SIB1的流程示意图，该流程中：
步骤401，终端设备向网络设备发送第二指示信息。
终端设备通过计时器确定终端设备中存储SIB1的持续时长到达设定时长(可以称为第四预设时长)时，或者在上述一些触发条件(切换带宽、业务繁忙率小于繁忙率阈值等)时，终端设备向网络设备发送第二指示信息。
其中第二指示信息中包括有失效时间信息，失效时间信息用于指示终端设备中存储的SIB1的失效时刻，失效时间信息比如终端设备确定的失效时刻，或者终端设备中存储SIB1的持续时长，或者终端设备中存储SIB1的剩余有效时长。
步骤402，网络设备根据第二指示信息确定第一时刻。
网络设备接收第二指示信息，根据第二指示信息中失效时间信息确定第一时刻，其中第一时刻在失效时刻之前。
步骤403，网络设备在第一时刻通过第二带宽部分向终端设备发送包括有SIB1的第一专用信令。
一种具体实现中，第二指示信息中包括第二时刻，第二时刻是终端设备中存储的SIB1的失效时刻。网络设备确定在第二时刻之前的第一时刻，然后在第一时刻通过第二带宽部分向终端设备发送包括有SIB1的第一专用信令。
比如SIB1的有效时长为3h，终端设备在10:00接收到来自网络设备的SIB1，启动计时器进行计时，终端设备确定第二时刻为13:00，则终端设备可以在13:00之前(比如12:00)向网络设备发送第二指示信息，其中第二指示信息包括有第二时刻13:00。相应的，网络设备接收到该第二指示信息，可以在第二时刻13:00之前的任一时刻(即第一时刻，比如12:50)向终端设备发送包括有SIB1的第一专用信令。
上述技术方案中，终端设备可以确定存储SIB1的持续时长到达有效时长之前的任一时刻向网络设备发送第二指示信息，示例性的，在确定存储SIB1的持续时长即将到达有效时长时，或者在由第一带宽部分切换至第二带宽部分时，或者在业务繁忙率小于繁忙率阈值时，相应的，网络设备也可以根据第二指示信息中的失效时间信息，确定在持续时长到达有效时长之前的任一时刻向终端设备发送包括有SIB1的第一专用信令，在保障终端设备周期性更新存储的SIB1的前提下，有助于提高了终端设备获取SIB1的灵活性。
此外，网络设备还可以自己确定第一时刻，然后在第一时刻向终端设备发送包括有SIB1的第一专用信令。如下为本申请示例性提供的第二种实现方式。
如图5示例性示出第三种网络设备发送SIB1的流程示意图，该流程中：
步骤501，网络设备确定终端设备中存储的SIB1的持续时长。
网络设备确定终端设备是否可以通过第二带宽部分接收到SIB1。具体的，网络设备可以确定是否在第二带宽部分上配置有发送SIB1的配置信息。比如，网络设备确定广播SIB1的频域资源的配置信息，若确定第二带宽部分不包括网络设备广播SIB1的频域资源，则确定终端设备不能通过第二带宽部分接收到SIB1。再比如，网络设备确定在一段时间内不再广播SIB1，则终端设备在该时间段内不能接收SIB1。
网络设备若确定终端设备不能通过第二带宽部分接收到SIB1，则主动启动计时，确定终端设备中存储的SIB1的持续时长到达设定时长时，向终端设备发送包含有SIB1的第一专用信令，此处的设定时长可以是小于SIB1有效时长的任一时长。本申请实施例中，网络设备需要先确定终端设备接收到SIB1的时刻，才能进一步启动计时。
一个示例中，在步骤201之后，网络设备向终端设备发送包括有SIB1的第二专用信令，终端设备若成功通过第二专用信令接收到该SIB1，则存储该接收到的SIB1并向网络设备发送肯定应答(acknowledgement，ACK)。网络设备接收到ACK，根据发送第二专用信令的时刻确定终端设备接收SIB1的时刻，网络设备在终端设备接收到SIB1的时刻启动计时，确定终端设备中存储的SIB1的持续时长。第二专用信令可以是RRC专用信令。
应理解，网络设备向终端设备发送第一专用信令之前，向终端设备发送第二专用信令，其中第二专用信令与第一专用信令不同。在一些实施例中，网络设备在向终端设备发送第一专用信令(包含有SIB1)之后，启动计时器，确定终端设备中存储的SIB1的持续时长到达设定时长时，向终端设备发送包含有SIB1的第三专用信令，此处，第一专用信令又可以理解是第二专用信令，第三专用信令又可以理解是第一专用信令。
再另一个示例中，在步骤201之后，终端设备在随机接入信道(random access channel，RACH)过程中，终端设备向网络设备请求当前小区的SIB1，若成功请求到当前小区的SIB1则存储该请求到的SIB1并向网络设备发送ACK。网络设备接收到ACK，根据与终端设备建立RRC连接的时刻确定终端设备接收SIB1的时刻，网络设备根据终端设备接收SIB1的时刻启动计时，确定终端设备中存储的SIB1的持续时长。
步骤502，网络设备根据终端设备中存储的SIB1的持续时长，确定第一时刻。
其中第一时刻是终端设备中存储SIB1的持续时长到达有效时长之前的时刻。
步骤503，网络设备在第一时刻通过第二带宽部分向终端设备发送包括有SIB1的第一专用信令。
需要说明的是，上述步骤501至步骤503中，网络设备启动计时器，该计时器对应有设定时长，当网络设备确定终端设备中存储的SIB1的持续时长达到计时器的设定时长时，确定符合预设条件的第一时刻，此处第一时刻可以是在终端设备中存储SIB1的持续时长到达设定时长之后，失效时刻之前。
此外，网络设备还可以在确定触发条件发生时，向终端设备发送包括有SIB1的第一专用信令，此处的触发条件可参照上述实施例中说明，不再赘述。
终端设备可以启动或不启动计时器，也即在该实施例中，上述步骤202为可选步骤。
上述技术方案中，网络设备若确定终端设备不能通过第二带宽部分接收到系统信息块，则主动维护计时器以确定终端设备中存储系统信息块的持续时长，网络设备在根据计时器确定该持续时长到达有效时长之前，向终端设备发送包括有系统信息块的第一专用信令，终端设备接收该第一专用信令，从第一专用信令中获取系统信息块，实现周期性更新存储的系统信息块。进一步的，终端设备无需判断是否可以接收到网络设备的广播，也无需启动计时器等，降低了终端设备的复杂度。
本申请还提供如下第三种实现方式，终端设备中存储SIB1的持续时长到达有效时长之前，若确定第二带宽部分上未配置有网络设备发送SIB1的配置信息，则可以继续使用当前存储的SIB1，避免出现终端设备删除存储的SIB1，导致误认为当前小区被禁的问题。
该实现方式中，终端设备通过第一带宽部分接收来自网络设备的SIB1，存储SIB1，并启动计时器(此处可以称为是第一计时器)，第一计时器的计时时长为设定时长，该设定时长小于SIB1的有效时长。
终端设备通过第一计时器确定终端设备中存储SIB1的持续时长，在确定该持续时长到达设定时长时，具体可以有如下示例1至示例3，有助于避免出现终端设备删除SIB1， 导致不能在当前小区中正常工作的问题，从而提高通信的可靠性。
示例1，终端设备重新启动第一计时器，则此时，第一计时器确定的终端设备中存储SIB1的持续时长为零，进一步的，终端设备继续使用第一计时器确定终端设备中存储SIB1的持续时长。可选的，终端设备中还包括计数器，用于确定重启第一计时器的次数，终端设备在确定重启第一计时器的次数达到预设次数之后删除终端设备中存储的SIB1。
示例2，终端设备延长存储的系统信息块的有效时长，相当于，终端设备继续使用第一计时器，确定终端设备中存储SIB1的持续时长。可选的，终端设备中可以设置存储SIB1的第五预设时长，终端设备存储SIB1的持续时长不得超过第五预设时长。
示例3，终端设备启动第二计时器，使用第二计时器确定终端设备中存储SIB1的持续时长。可选的，第二计时器的计时时长与第一计时器的计时时长不同，比如第一计时器的计时时长为3h，第二计时器的计时时长为6h。
该实现方式中，网络设备通过第一带宽部分向终端设备发送的SIB1可以称为第一SIB1，网络设备若确定当前小区的系统信息发生变化，则会广播系统信息变更指示，该系统信息变更指示用于指示当前小区中终端设备获取新的SIB1(系统信息变化后的SIB1)，可以将该新的SIB1称为第二SIB1，第二SIB1中参数与第一SIB1中参数不同。
如图6示例性示出第四种网络设备发送SIB1的流程示意图，该流程中：
步骤601，网络设备确定当前小区的系统信息发生变化，生成第二SIB1。
步骤602，网络设备确定在第二带宽部分上未配置有发送第二SIB1的配置信息。
相当于说，第二带宽部分的配置信息中不包括网络设备发送第二SIB1的配置信息。即使网络设备广播第二SIB1，但由于网络设备在第二带宽部分上未配置有发送第二SIB1的配置信息，则工作在第二带宽部分上的终端设备不能接收到该第二SIB1。
步骤603，网络设备通过第二带宽部分向终端设备发送包括有第二SIB1的第一专用信令。相应的，终端设备接收来自网络设备的第一专用信令，将第一专用信令中第二SIB1替换当前存储的第一SIB1，并重新启动第一计时器。
上述技术方案中，终端设备若确定不能通过第二带宽部分接收到SIB1，则在终端设备中存储的SIB1的持续时长到达有效时长时，继续使用存储的SIB1，直至接收到网络设备通过第一专用信令发送的更新后的SIB1，避免出现终端设备删除SIB1，导致不能在当前小区中正常工作的问题，从而提高通信的可靠性。
上述实施例中虽然是以SIB1举例说明，但本申请同样适用于OSI，比如SIB2，…，SIB14中任一个，若系统信息块是OSI时，则网络设备和/或终端设备可以基于SIB1确定第二带宽部分上是否配置有网络设备发送该OSI的时域资源和/或频域资源，并执行上述实施例中获取系统信息块的过程。
本申请示例性提供的一种实际应用场景，该实际应用场景中包括一个网络设备和三个视频监控设备，三个视频监控设备可以接入至网络设备提供的服务小区中，由于视频监控设备提供的监控业务的特殊性，视频监控设备可能较长时间处于RRC连接态。对于任一个视频监控设备，网络设备将该视频监控设备由初始带宽部分调度至激活带宽部分，其中该激活带宽部分上可能未配置有网络设备发送SIB1的配置信息，则该视频监控设备可以持续使用在初始带宽部分上接收到的SIB1，直至通过激活带宽部分接收到来自网络设备的包括有SIB1的第一专用信令。
本文中描述的各个实施例可以为独立的方案，也可以根据内在逻辑进行组合，这些方案都落入本申请的保护范围中。
可以理解的是，上述各个方法实施例中，由终端设备实现的方法和操作，也可以由可用于终端设备的部件(例如芯片或者电路)实现，由网络设备实现的方法和操作，也可以由可用于网络设备的部件(例如芯片或者电路)实现。
上述本申请提供的实施例中，分别从各个设备之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，终端设备与网络设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
本申请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，在本申请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。
基于上述内容和相同构思，图7和图8为本申请的提供的可能的通信装置的结构示意图。这些通信装置可以用于实现上述方法实施例中终端设备或网络设备的功能，因此也能实现上述方法实施例所具备的有益效果。
如图7所示，该通信装置700包括处理模块701和收发模块702。通信装置700用于实现上述图2至图6相关实施例中网络设备的功能或终端设备的功能。
示例性地，通信装置700可以是网络设备，也可以是应用于网络设备中的芯片或者其他具有上述网络设备功能的组合器件、部件等。通信装置700还可以是终端设备，也可以是应用于终端设备中的芯片或者其他具有上述终端设备功能的组合器件、部件等。
示例性地，当通信装置700是网络设备时，收发模块702可以是收发器，收发器可以包括天线和射频电路等，处理模块701可以是处理器(或者，处理电路)，例如基带处理器，基带处理器中可以包括一个或多个CPU。当通信装置700是具有上述网络设备功能的部件时，收发模块702可以是射频单元，处理模块701可以是处理器(或者，处理电路)，例如基带处理器。当通信装置700是芯片系统时，收发模块702可以是芯片(例如基带芯片)的输入输出接口、处理模块701可以是芯片系统的处理器(或者，处理电路)，可以包括一个或多个中央处理模块。应理解，本申请实施例中的处理模块701可以由处理器或处理器相关电路组件(或者，称为处理电路)实现，收发模块702可以由收发器或收发器相关电路组件实现。
如图8所示为本申请实施例提供的通信装置800，图8所示的通信装置可以为图7所示的通信装置的一种硬件电路的实现方式。该通信装置可适用于前面所示出的流程图中，执行上述方法实施例中终端设备或者网络设备的功能。
为了便于说明，图8仅示出了该通信装置的主要部件。图8所示的通信装置800包括至少一个处理器820，用于实现本申请实施例提供的图2至图6中任一方法。
通信装置800还可以包括至少一个存储器830，用于存储程序指令和/或数据。存储器830和处理器820耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，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。处理器820可能和存储器830协同操作。处理器820可能执行存储器830中存储的程序指令。 所述至少一个存储器中的至少一个可以包括于处理器中。
图8所示的通信装置800包括至少一个处理器820以及通信接口810，处理器820用于执行存储器830中存储的指令或程序。存储器830中存储的指令或程序被执行时，该处理器820用于执行上述实施例中处理模块701执行的操作，通信接口810用于执行上述实施例中收发模块702执行的操作。
在本申请实施例中，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口。在本申请实施例中，通信接口为收发器时，收发器可以包括独立的接收器、独立的发射器；也可以集成收发功能的收发器、或者是通信接口。
通信装置800还可以包括通信线路840。其中，通信接口810、处理器820以及存储器830可以通过通信线路840相互连接；通信线路840可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。所述通信线路840可以分为地址总线、数据总线、控制总线等。为便于表示，图8中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
基于上述内容和相同构思，本申请提供一种通信装置，包括处理器和通信接口，通信接口用于接收来自通信装置之外的其它通信装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它通信装置，处理器通过逻辑电路或执行代码指令用于实现图2至图6所示的方法实施例的网络设备的功能或终端设备的功能。
基于上述内容和相同构思，本申请提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令被通信装置执行时，实现图2至图6所示的方法实施例的网络设备的功能或终端设备的功能。
基于上述内容和相同构思，本申请提供一种计算机程序产品，计算机程序产品包括计算机程序或指令，当计算机程序或指令被通信装置执行时，实现图2至图6所示的方法实施例的网络设备的功能或终端设备的功能。
基于上述内容和相同构思，本申请提供一种通信系统，包括图2至图6所示的方法实施例中的网络设备和图2至图6所示的方法实施例中的终端设备。
基于上述内容和相同构思，本申请提供一种芯片，包括至少一个处理器和接口；
接口，用于为至少一个处理器提供程序指令或者数据；
至少一个处理器用于执行程序行指令，实现图2至图6所示的方法实施例的网络设备的功能或终端设备的功能。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，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。在本申请的文字描述中，字符“/”，一般表示前后关联对象是一种“或”的关系；在本申请的公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。上述各过程的序号的大小并不意味着执行顺序的先 后，各过程的执行顺序应以其功能和内在逻辑确定。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的保护范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (30)

  1. 一种系统信息块传输方法，其特征在于，包括：
    网络设备通过第一带宽部分向终端设备发送系统信息块；
    所述网络设备确定到达满足预设条件的第一时刻时，在所述第一时刻通过第二带宽部分向所述终端设备发送所述系统信息块，所述系统信息块包含在第一专用信令里，其中所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息。
  2. 如权利要求1所述的方法，其特征在于，所述网络设备确定到达满足预设条件的第一时刻，包括：
    所述网络设备接收来自所述终端设备的第一指示信息，所述第一指示信息用于指示所述终端设备中存储的所述系统信息块即将失效；
    所述网络设备根据所述第一指示信息确定所述第一时刻。
  3. 如权利要求1所述的方法，其特征在于，所述网络设备确定到达满足预设条件的第一时刻，包括：
    所述网络设备接收来自所述终端设备的第二指示信息，所述第二指示信息包括第二时刻，所述第二时刻是所述终端设备中存储的所述系统信息块的失效时刻；
    所述网络设备根据所述第二指示信息确定所述第一时刻，所述第一时刻在所述第二时刻之前。
  4. 如权利要求1所述的方法，其特征在于，所述网络设备确定到达满足预设条件的第一时刻，包括：
    所述网络设备从所述网络设备与所述终端设备建立无线资源控制RRC连接的时刻开始计时设定时长，所述第一时刻不早于所述设定时长超时的时刻。
  5. 如权利要求1所述的方法，其特征在于，所述网络设备确定到达满足预设条件的第一时刻，包括：
    所述网络设备从所述网络设备通过第二专用信令向所述终端设备发送所述系统信息块的时刻开始计时设定时长，所述第一时刻不早于所述设定时长超时的时刻。
  6. 如权利要求1至5任一项所述的方法，其特征在于，所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息，包括：
    所述网络设备发送所述系统信息块的配置信息中包括所述网络设备广播所述系统信息块的频域资源，所述第二带宽部分上不包括所述频域资源。
  7. 如权利要求1至5任一项所述的方法，其特征在于，所述第二带宽部分与所述第一带宽部分相同。
  8. 一种系统信息块传输方法，其特征在于，包括：
    终端设备通过第一带宽部分接收来自网络设备的系统信息块；
    所述终端设备存储所述系统信息块，并启动计时器，所述计时器的计时时长为设定时长；
    所述终端设备在所述计时器计时超时时，通过第二带宽部分接收来自所述网络设备的系统信息块，通过所述第二带宽部分接收的所述系统信息块包含在第一专用信令里，其中所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息。
  9. 如权利要求8所述的方法，其特征在于，还包括：
    所述终端设备在所述计时器计时超时时，向所述网络设备发送第一指示信息，所述第一指示信息用于指示所述终端设备中存储的所述系统信息块即将失效。
  10. 如权利要求8所述的方法，其特征在于，还包括：
    所述终端设备在所述计时器计时超时时，向所述网络设备发送第二指示信息，所述第二指示信息包括第二时刻，所述第二时刻是所述终端设备中存储的所述系统信息块的失效时刻。
  11. 如权利要求8至10任一项所述的方法，其特征在于，所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息，包括：
    所述网络设备发送所述系统信息块的配置信息中包括所述网络设备广播所述系统信息块的频域资源，所述第二带宽部分上不包括所述频域资源。
  12. 如权利要求8至10任一项所述的方法，其特征在于，所述第二带宽部分与所述第一带宽部分相同。
  13. 一种系统信息块传输方法，其特征在于，包括：
    终端设备通过第一带宽部分接收来自网络设备的系统信息块；
    所述终端设备存储所述系统信息块，并启动第一计时器，所述第一计时器的计时时长为设定时长；
    所述终端设备在所述第一计时器计时超时时，若未在第二带宽部分上接收到来自所述网络设备的系统信息块，则继续使用存储的所述系统信息块，其中所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息。
  14. 如权利要求13所述的方法，其特征在于，所述终端设备继续使用存储的所述系统信息块，包括：
    所述终端设备延长存储的所述系统信息块的有效时长；或
    所述终端设备重新启动所述第一计时器；或
    所述终端设备启动第二计时器，所述第二计时器和所述第一计时器的计时时长不同。
  15. 如权利要求13或14所述的方法，其特征在于，所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息，包括：
    所述网络设备发送所述系统信息块的配置信息中包括所述网络设备广播所述系统信息块的频域资源，所述第二带宽部分上不包括所述频域资源。
  16. 如权利要求13或14所述的方法，其特征在于，所述第二带宽部分与所述第一带宽部分相同。
  17. 一种通信装置，其特征在于，包括：
    处理模块用于控制收发模块通过第一带宽部分向终端设备发送系统信息块；
    所述处理模块还用于确定到达满足预设条件的第一时刻时，控制所述收发模块在所述第一时刻通过第二带宽部分向所述终端设备发送所述系统信息块，所述系统信息块包含在第一专用信令里，其中所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息。
  18. 如权利要求17所述的通信装置，其特征在于，所述处理模块具体用于控制所述收发模块接收来自所述终端设备的第一指示信息，所述第一指示信息用于指示所述终端设备中存储的所述系统信息块即将失效；根据所述第一指示信息确定所述第一时刻。
  19. 如权利要求17所述的通信装置，其特征在于，所述处理模块具体用于控制所述 收发模块接收来自所述终端设备的第二指示信息，所述第二指示信息包括第二时刻，所述第二时刻是所述终端设备中存储的所述系统信息块的失效时刻；根据所述第二指示信息确定所述第一时刻，所述第一时刻在所述第二时刻之前。
  20. 如权利要求17所述的通信装置，其特征在于，所述处理模块具体用于从所述通信装置与所述终端设备建立无线资源控制RRC连接的时刻开始计时设定时长，所述第一时刻不早于所述设定时长超时的时刻。
  21. 如权利要求17所述的通信装置，其特征在于，所述处理模块具体用于从所述通信装置通过第二专用信令向所述终端设备发送所述系统信息块的时刻开始计时设定时长，所述第一时刻不早于所述设定时长超时的时刻。
  22. 一种通信装置，其特征在于，包括：
    处理模块用于控制收发模块通过第一带宽部分接收来自网络设备的系统信息块；
    所述处理模块还用于存储所述系统信息块，并启动计时器，所述计时器的计时时长为设定时长；
    所述处理模块还用于在所述计时器计时超时时，控制所述收发模块通过第二带宽部分接收来自所述网络设备的系统信息块，通过所述第二带宽部分接收的所述系统信息块包含在第一专用信令里，其中所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息。
  23. 如权利要求22所述的通信装置，其特征在于，所述处理模块还用于在所述计时器计时超时时，控制所述收发模块向所述网络设备发送第一指示信息，所述第一指示信息用于指示所述终端设备中存储的所述系统信息块即将失效。
  24. 如权利要求22所述的通信装置，其特征在于，所述处理模块还用于在所述计时器计时超时时，控制所述收发模块向所述网络设备发送第二指示信息，所述第二指示信息包括第二时刻，所述第二时刻是所述终端设备中存储的所述系统信息块的失效时刻。
  25. 一种通信装置，其特征在于，包括：
    处理模块用于控制收发模块通过第一带宽部分接收来自网络设备的系统信息块；
    所述处理模块还用于存储所述系统信息块，并启动第一计时器，所述第一计时器的计时时长为设定时长；
    所述处理模块还用于在所述第一计时器计时超时时，若未在第二带宽部分上接收到来自所述网络设备的系统信息块，则继续使用存储的所述系统信息块，其中所述第二带宽部分上未配置有所述网络设备发送所述系统信息块的配置信息。
  26. 如权利要求25所述的通信装置，其特征在于，所述处理模块具体用于延长存储的所述系统信息块的有效时长；或重新启动所述第一计时器；或启动第二计时器，所述第二计时器和所述第一计时器的计时时长不同。
  27. 一种通信装置，其特征在于，包括处理器和通信接口，所述通信接口用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至7中任一项所述的方法、或8至12中任一项所述的方法、或13至16中任一项所述的方法。
  28. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求1至7中任 一项所述的方法、或8至12中任一项所述的方法、或13至16中任一项所述的方法。
  29. 一种芯片，其特征在于，包括至少一个处理器和接口；
    接口，用于为至少一个处理器提供程序指令或者数据；
    至少一个处理器用于执行程序行指令，以实现如权利要求1至7中任一项所述的方法、或8至12中任一项所述的方法、或13至16中任一项所述的方法。
  30. 一种通信系统，其特征在于，包括如权利要求17至21中任一项所述的通信装置和如权利要求22至24中任一项所述的通信装置，或包括如权利要求25或26所述的通信装置。
PCT/CN2020/134591 2020-12-08 2020-12-08 一种系统信息块传输方法及通信装置 WO2022120582A1 (zh)

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