WO2021259358A1

WO2021259358A1 - Bandwidth part switching method and apparatus

Info

Publication number: WO2021259358A1
Application number: PCT/CN2021/102078
Authority: WO
Inventors: 冯爱娟; 生嘉
Original assignee: Tcl通讯（宁波）有限公司
Priority date: 2020-06-24
Filing date: 2021-06-24
Publication date: 2021-12-30
Also published as: CN113840347A

Abstract

Disclosed are a bandwidth part switching method and apparatus. The switching method comprises: determining an access state of a bandwidth part, and generating restricted access information according to the access state; and sending the restricted access information to a user equipment. The user equipment determines a final target bandwidth part according to the restricted access information, and switches to the final target bandwidth part, or stops a switching process. Therefore, according to the solution, in the process of switching from the existing bandwidth part to an initial bandwidth part, the switching to the initial bandwidth part can be prohibited. This solution is applicable to scenes of switching between different types of bandwidth parts, but not only the scene of switching to the initial bandwidth part.

Description

Method and device for partial bandwidth switching

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on June 24, 2020, the application number is 202010591337.X, and the invention title is "a method and device for partial bandwidth switching", the entire content of which is incorporated by reference In this application.

Technical field

The present invention relates to the field of communication technology, and in particular to a method and device for switching Bandwidth Part (BWP).

Background technique

5G usage scenarios include enhanced mobile broadband (eMBB), large-scale machine type (mMTC), ultra-reliable and low-latency communications (URLLC). Between mMTC and URLLC, there is a class of time-sensitive application scenarios with relatively low device complexity, such as industrial IoT sensors, smart monitoring in smart cities, wearable devices and other new IoT application scenarios. The complexity and cost of new IoT devices are comparable to URLLC/eMBB devices. The device size is relatively small, and the bandwidth and peak rate requirements are not very high. The 3GPP RAN1 group set up a project "support of reduced capability NR devices" in R17 to study how to support this new type of IoT device, which is called Reduced Capability User Equipment (RedCapability User Equipment), referred to as RedCap UE for short. Compared with traditional New Radio (NR) UEs, RedCap UE has a much lower bandwidth. BWP (Bandwidth Part) is a concept introduced in NR. In NR, the bandwidth of the UE can be dynamically changed. When the traffic volume is large, the system configures a large bandwidth BWP for the UE; when the traffic volume is small, a small bandwidth is configured for the UE. BWP is mainly divided into two categories: initial BWP and proprietary BWP. The initial BWP is mainly used for receiving RMSI (minimum remaining system information), initiating random access, etc.; while the proprietary BWP is mainly used for data service transmission, and the bandwidth of the proprietary BWP is generally larger than the initial BWP. Upstream and downstream each have their own initial BWP and proprietary BWP. Redcap UE, as an Internet of Things device, has a large number in a cell. For the limited wireless resources where the BWP is located, the load is large. In particular, the initial BWP should carry the paging control channel (Paging Control Channel, PCCH), the physical random access channel (Physical Random Access Channel, PRACH), and the radio resource control (Radio Resource Control) for the random access process. RRC) and other signaling, the initial downlink BWP load will increase as the number of Redcap UEs increases. Redcap UE complexity is reduced. For example, the number of antennas is reduced, which will affect the coverage rate. In order to improve the coverage rate, the network uses low bit rate or retransmission technology to transmit on the broadcast channel. This application plus the huge number of RedCap UEs makes the initial situation worse. The load of BWP.

technical problem

In the current 3GPP specifications, there are 4 triggering methods for BWP handover: Handover based on DCI indication: Used to carry the BWP handover indication in the scheduling DCI when there is data scheduling. After receiving the indication, the UE performs BWP handover, and then Data processing; DCI scheduling is mainly used to switch from the initial BWP to the proprietary BWP for data processing; but when the proprietary BWP configured by the upper layer is less than 4, the possibility of switching from the proprietary BWP back to the initial BWP by scheduling DCI is not ruled out . Handover based on RRC indication: used for the UE to switch from the initial BWP to the configured firstActiveBWP after the UE completes the initial access and enters the RRC connected state or after the RRC reconfiguration or the SCell is activated; this scheme is after the initial random access The solution cannot solve the problem of the initial random access process and the excessive initial BWP load. Timer-based handover: When the base station configures the serving cell configuration for the UE, it will configure the uplink and downlink dedicated BWP configuration, and also configure the downlink BWP Inactive timer; this timer is used for the UE if there is no service scheduling for a long time, the timer After the timeout, switch to the default downlink BWP (if configured), otherwise switch to the initial downlink BWP; this solution is to switch from the active downlink BWP to the default downlink BWP or the initial downlink BWP. Handover during random access: The activated BWP needs to initiate random access, but the current uplink BWP does not have PRACH configuration, and the uplink BWP needs to be switched to the initial uplink BWP for random access, and the corresponding downlink BWP should also be switched to and uplink The pair corresponding to the BWP; in the random access process, the uplink BWP and the downlink BWP need to be paired (using the same BWP number) to receive and send messages, so they will be coupled and switched together.

In these four BWP switching methods, you can see the scenario of switching back to the initial BWP. As mentioned earlier, in the RedCap UE application, the initial BWP is overloaded. If it is switched back to the initial BWP, the load of the initial BWP is aggravated. Therefore, the existing technology needs to be improved.

Technical solutions

The embodiment of the present invention provides a partial bandwidth switching method and device, which prohibits switching back to the initial partial bandwidth.

A partial bandwidth switching method provided by an embodiment of the present invention includes: determining an access state of a partial bandwidth, generating restricted access information according to the access state, and sending the restricted access information to a user equipment.

Optionally, in some embodiments of the present invention, the determining the access state of the partial bandwidth includes:

Receiving the restricted access information query instruction sent by the user equipment.

Acquiring a classification of the user equipment, where the partial bandwidth is a partial bandwidth corresponding to the user equipment of the preset classification;

The classification includes at least user category or access priority.

Receiving a query instruction for target restricted access information sent by the user equipment, where the target restricted access information is restricted access information corresponding to the target partial bandwidth.

Acquiring channel state information of the part of the bandwidth;

Judging that the channel state information satisfies a preset access barring condition, and the partial bandwidth is set to the access barring state;

It is determined that the channel state information does not satisfy the access prohibition condition, and the partial bandwidth is set to the access permitted state.

Optionally, in some embodiments of the present invention, the judging that the channel state information satisfies a preset access barring condition, and setting the partial bandwidth to the access barring state includes:

The channel state information includes at least one or a combination of the following: the number of users connected, the signal-to-noise ratio, the number of users in the wireless resource control connection state, the noise floor, the channel quality indicator, the reference signal reception quality, and Reference signal received power;

The access prohibition condition includes that at least the number of accessed users is greater than a preset number of users threshold, and the signal-to-noise ratio is less than a preset signal-to-noise ratio threshold.

Obtain the resource status information of the initial part of the bandwidth;

Judging that the resource status information satisfies a preset resource restriction condition, and the resource is set to the access prohibited state;

Determining that the resource status information does not satisfy the resource restriction condition, and setting the resource to the permitted access status;

The resources include public resources and exclusive resources.

Receiving a query instruction for initial restricted access information sent by the user equipment, where the initial restricted access information is restricted access information corresponding to the initial partial bandwidth.

Optionally, in some embodiments of the present invention, the judging that the resource status information satisfies a preset resource restriction condition, and setting the resource to the access barred state includes:

The public resource and the dedicated resource are in the access prohibited state, and the initial partial bandwidth is set to the access prohibited state.

Optionally, in some embodiments of the present invention, the judging that the resource state information does not satisfy the resource restriction condition, and setting the resource to the allowed access state includes:

When the public resource is in the forbidden access state and the dedicated resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, allowing processing on the dedicated resource The service of the user equipment.

When the initial public resource is in the forbidden access state and the non-initial public resource and/or the dedicated resource is in the permitted access state, the initial partial bandwidth is set to the permitted access state , Allowing the service of the user equipment to be processed on the non-initial public resource.

A partial bandwidth switching method provided by an embodiment of the present invention includes: receiving restricted access information sent by a base station; determining a final target partial bandwidth according to the restricted access information, and the final target partial bandwidth is in a state of allowing access .

Optionally, in some embodiments of the present invention, the determining the final target partial bandwidth according to the restricted access information includes:

Preset target partial bandwidth, the target partial bandwidth is in an access allowed state, and the target partial bandwidth is the final target partial bandwidth;

The target partial bandwidth is in an access prohibited state, and the target partial bandwidth is preset again.

Optionally, in some embodiments of the present invention, the receiving restricted access information sent by the base station includes:

Sending the query instruction of the restricted access information to the base station.

Preset the target partial bandwidth;

Send a query instruction for target restricted access information to the base station, where the target restricted access information is restricted access information corresponding to the target partial bandwidth.

Receive initial restricted access information sent by the base station, where the initial restricted access information includes public resource restricted access information and dedicated resource restricted access information.

Sending the initial restricted access information query instruction to the base station, where the initial restricted access information is restricted access information corresponding to the initial partial bandwidth.

The public resource and the dedicated resource are in a state where access is prohibited, and the handover process is stopped;

The public resource is in the forbidden access state, the dedicated resource is in the allowed access state, and the service of the user equipment is processed on the dedicated resource; or the handover process is stopped;

When the initial public resource is in the forbidden access state and the non-initial public resource and/or the dedicated resource is in the permitted access state, the user equipment is processed on the non-initial public resource Business; or stop the switching process.

The method disclosed in the present invention can be programmed as computer-executable instructions stored in a non-volatile computer-readable medium. When loaded into the computer, the non-volatile computer-readable medium instructs the processor of the computer to perform the method.

The non-volatile computer-readable medium may include at least one consisting of at least one of the following: hard disk, optical disk, optical storage device, magnetic storage device, read-only memory, programmable read-only memory, erasable programmable only Read memory, EPROM, electronically erasable programmable read-only memory and flash memory.

The method disclosed in the present invention can be compiled into a computer program product, which can cause a computer to execute the method of the present invention.

Beneficial effect

In the embodiment of the present invention, the access status of a part of the bandwidth is determined, the restricted access information is generated according to the access status, and the restricted access information is sent to the user equipment. The user equipment determines the final target partial bandwidth according to the restricted access information, switches to the final target partial bandwidth, or stops the handover process. Therefore, this solution can prohibit switching back to the original partial bandwidth during the process of switching from the existing partial bandwidth back to the initial partial bandwidth. This solution is suitable for scenarios that switch between various partial bandwidths, not just switching back to the initial partial bandwidth. Scene.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative work, other drawings can be obtained based on these drawings.

FIG. 1 is a schematic diagram of a base station, a user device, and a network entity device provided by an embodiment of the present invention; FIG. 2 is a schematic flowchart of a partial bandwidth switching method provided by an embodiment of the present invention;

3 is a schematic flowchart of another partial bandwidth switching method according to an embodiment of the present invention;

4 is a working flowchart of a partial bandwidth switching method provided by an embodiment of the present invention;

Fig. 5 is a working flowchart of another partial bandwidth switching method provided by an embodiment of the present invention.

Fig. 6 is a schematic diagram of a system to which the partial bandwidth switching method provided by an application embodiment of the present invention is applied.

Embodiments of the present invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

The embodiment of the present invention provides a partial bandwidth switching method and device. The user equipment in the embodiments of the present invention includes industrial IoT sensors, smart monitoring in smart cities, wearable devices, and the like.

Detailed descriptions are given below. It should be noted that the order of description in the following embodiments is not meant to limit the preferred order of the embodiments.

1, a user equipment (UE) 10a, a UE 10b, a base station (BS) 200a, and a network entity device 300 perform a method according to an embodiment of the present invention. The connections between the device and the device components are shown in the form of lines and arrows in FIG. 1. The UE 10a may include a processor 11a, a memory 12a, and a transceiver 13a. The UE 10b may include a processor 11b, a memory 12b, and a transceiver 13b. The base station 200a may include a processor 201a, a memory 202a, and a transceiver 203a. The network entity device 300 may include a processor 301, a memory 302, and a transceiver 303. Each of the

processors

11a, 11b, 201a, and 301 may be configured to implement the functions, procedures, and/or methods described in this description. Multiple layers of the radio interface protocol can be implemented in the

processors

11a, 11b, 201a, and 301. Each of the

memories

12a, 12b, 202a, and 302 stores various programs and information in an operable state to operate the connected processor. Each of the

transceivers

13a, 13b, 203a, and 303 is coupled with the connected processor in an operable state to transmit and/or receive radio signals. The base station 200a may be one of eNB, gNB, or other radio nodes.

Each of the

processors

11a, 11b, 201a, and 301 may include a general-purpose central processing unit (CPU), an application-specific integrated circuit (ASIC), other chipsets, logic circuits, and/or data processing devices. Each of the

memories

12a, 12b, 202a, and 302 may include read-only memory (ROM), random access memory (RAM), flash memory (random access memory), and memory card (memory card). ), storage medium, other storage device, and/or any combination of memory and storage device. Each of the

transceivers

13a, 13b, 203a, and 303 may include a baseband circuit and a radio frequency (RF) circuit to process radio frequency signals. When the embodiments of the present invention are implemented in software, the technology described herein can be implemented by modules, programs, functions, entities, etc. that perform the functions described herein. These modules can be stored in the memory and executed by the processor. The memory may be implemented inside the processor or outside the processor, where the memory may be communicatively coupled with the processor in various ways known in the art.

The network entity device 300 may be a node in a central network (central network, CN). CN may include LTE CN or 5G core (5G core, 5GC), which may include user plane function (UPF), session management function (session management function, SMF), mobility management function (mobility management function, AMF) ), unified data management (UDM), policy control function (PCF), control plane/user plane separation (CUPS), authentication server (authentication server function, AUSF) , Network slicing selection function (network slice selection function, NSSF), network exposure function (network exposure function, NEF) and other network entities.

A partial bandwidth switching method includes: determining an access state of a partial bandwidth, generating restricted access information according to the access state, and sending the restricted access information to a user equipment.

As shown in Figure 2, the specific process of this part of the bandwidth switching method can be as follows:

In step 101, the base station determines the access status of a part of the bandwidth, and generates restricted access information according to the access status.

For example, the base station judges the access status of each part of the bandwidth, that is, determines whether each part of the bandwidth allows new users to access, and generates the restricted access information of each part of the bandwidth according to the access status of each part of the bandwidth, and then broadcasts or dedicated RRC information. Let the restricted access information of each part of the bandwidth be sent to the user equipment. The restricted access information may be broadcast to the user equipment through system information, such as master information block (MasterInformationBlock, MIB) or system information block type 1 (SystemInformationBlockType1).

Among them, if part of the bandwidth allows new users to access, then this part of the bandwidth is in an allowed access state, and if part of the bandwidth does not allow new users to access, then this part of the bandwidth is in a prohibited access state. The base station obtains the channel state information of each part of the bandwidth, and according to the channel state information of the obtained part of the bandwidth or other factors such as time, judges whether the channel state of the part of the bandwidth has deteriorated to a certain extent according to a certain strategy, if it is, then the part of the bandwidth It is in a state of forbidden to access, and no new users are allowed to access, so as to avoid further deterioration of the channel state.

Among them, the channel state information of part of the bandwidth includes, but is not limited to, the number of users connected, the signal-to-noise ratio (SINR), the number of users in the radio resource control connection state, the noise floor, the channel quality indicator (CQI), and the reference signal reception quality ( Reference Signal Received Quality), Reference Signal Received Power; The source of the channel state information can be: MSG4 sends the measurement configuration to the user equipment through broadcast signaling before, and the user equipment reports the channel state information to the base station after the measurement; Or the base station obtains it through the historical information or the information reported by other user equipment in the cell.

Among them, the pre-set part of the bandwidth of the base station does not allow new users to enter the policy, that is, the prohibition conditions of the part of the bandwidth, including the number of connected users is greater than the preset number of users threshold, the signal-to-noise ratio is less than the preset signal-to-noise ratio threshold, or two Combination of prohibiting access conditions, or setting a time period, using this time period as a time period for restricting access of new users, etc., the prohibiting access condition can be any one of the conditions or a combination thereof, and is not limited to the implementation of the present invention Examples listed. If the channel state information of a part of the bandwidth satisfies the aforementioned access prohibition condition, the part of the bandwidth is in the access prohibited state; if the channel state information of the part of the bandwidth does not meet the aforementioned access prohibition condition, the part of the bandwidth is in the allowed access state.

Among them, after the base station judges its access status according to the channel state information of part of the bandwidth, it generates corresponding restricted access information, and the information element of the part of the bandwidth restricted access information (Information element, IE) messages such as MSG4 for random access and reconfiguration are notified to the user equipment. The IE includes each part of the bandwidth and the access state of each part of the bandwidth, and the structure of the IE is not limited. The limited access information of the changed partial bandwidth, the limited access information of a single partial bandwidth, or the limited access information of all configured partial bandwidths can be carried in the signaling. For example, the structure of IE can be expressed in the following way:

Table 1

The restricted access information defines each of the partial bandwidths identified by the plurality of bwp-Ids as an access permitted state or an access prohibited state.

Wherein, the base station can judge the access state of part of the bandwidth of all user equipments accessing the base station, but not all part of the bandwidth of the user equipment needs to be judged. Access control can be performed according to the user category (UE Category, Cat for short). The types of UE Category are as follows: Cat-M1, Cat-M2, Category-0, Cat-1, Category-2,..., UE Category represents the terminal capability level , Indicating the data processing capabilities (download and upload rates) supported by the terminal, the maximum space division multiplexing, modulation and coding capabilities, etc.; one user category or multiple user categories can be preset, for the part of the user equipment of the preset category Bandwidth access control; for example, Cat-0, Cat-1, Cat-2, ... connect more user equipment, you can set to only perform part of the bandwidth of Cat-0, Cat-1, Cat-2 user equipment Access control. For example, the structure of IE can be expressed in the following way:

Table 2

Allowed indicates the state of allowed access; notAllowed indicates the state of prohibited access. Alternatively, the structure of IE can be expressed in the following way:

table 3

barredCategory represents the category of user equipment that is forbidden to access. Alternatively, the structure of IE can be expressed in the following way:

Table 4

In the example of the IE, the restricted access information defines that each user equipment category of a plurality of user equipment categories is associated with an allowed access state or a barred access state of the final target partial bandwidth.

In addition, the user equipment can be accessed to control part of the bandwidth according to the access priority from the upper layer. The access priority comes from, for example, the combination mapping of defined access identities and access categories. ; It can also be other priorities mapped from more combinations, which is not limited in the present invention. The access priority, for example, in TS 22.261 6.22, defines one or more mapping combinations of Access identities, Access Category, or other priorities. An access priority threshold can be preset, and some bandwidth access control for user equipment with an access priority greater than this threshold can be performed; an access priority or multiple access priorities can also be preset to control the preset access The user equipment of the incoming priority performs access control. For access control based on user categories, the IE format of part of the bandwidth-restricted information can be: list each user category, and the access status of this category after each user category; it can be the user category that will be barred from access status Enumerate, enumerate the user categories in the allowed access state; the IE format is not limited to the above format. For access control based on access priority, the IE format of part of the bandwidth limited information can be: list each access priority, and the access status of this priority after each access priority; it can be List the access priority in the prohibited access state, and list the access priority in the permitted access state; the IE format is not limited to the above format. For example, the structure of IE can be expressed in the following way:

table 5

priority-1Access and priority-2Access represent the access priority of the user equipment. Allowed indicates the state of allowed access; notAllowed indicates the state of prohibited access. Alternatively, the structure of IE can be expressed in the following way:

Table 6

Each bit in barredAccessPriority represents an access priority. Alternatively, the structure of IE can be expressed in the following way:

Table 7

barredAccessPriority represents an access priority. In the example of the IE, the restricted access information defines that each access priority of a plurality of user equipment access priorities is associated with the permitted access state or the barred access state of the final target bandwidth, where The access priority includes at least the access identity or access category of the user equipment.

Optionally, the user equipment queries whether each part of the bandwidth is restricted, and sends a query command for restricted access information of the partial bandwidth to the base station through RRC signaling. After receiving the query command, the base station judges the access status of the partial bandwidth . According to the channel status of part of the bandwidth fed back by each user in the cell, determine whether each part of the bandwidth configured by the user equipment allows new users to access, and send the information to the user equipment through RRC signaling. The IE information can be the above-mentioned information. Any one of the aforementioned base stations notifies the user equipment.

In 3GPP TS38.331, ServingCellConfigCommon includes the configuration of downlink BWP mainly as follows:

Table 8

Similarly, the configuration of the initial uplink BWP is mainly related to RACH, PUSCH, and PUSCH:

Table 9

The configuration in the BWP#0Dedicated part, and finally the configuration of the initial downlink BWP, is also mainly the configuration of PDSCH and PDCCH:

Table 10

Among them, it can be understood from 3GPP TS38.331 that the initial BWP (BWP#0) has two configurations. In configuration 1, there is only the ServingCellConfigCommon part, including the uplink public BWP and the downlink public BWP; the configuration 2 includes the ServingCellConfigCommon part and the ServingCellConfig part. The ServingCellConfig part includes the upstream dedicated BWP and the downstream dedicated BWP. It can be understood that the ServingCellConfigCommon part is a cell-level public configuration, that is to say, this part is shared by all user equipment; at the same time, a part of configuration 2 can be configured for user equipment exclusive, and this part of information is randomized The MSG4 message of the access process is configured; for the initial BWP of configuration 2, it includes two parts of time-frequency resources, dedicated and public. The ServingCellConfigCommon part will configure the common information of the initial BWP, such as the starting position, bandwidth, cyclic prefix (CP), subcarrier spacing (SCS), and physical downlink control channel (Physical Downlink Control Channel, PDCCH) ) Public configuration information and physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) public configuration information. The public configuration information of the PDCCH includes the initial control resource set (Control-resource set, CORESET) CORESET#0, the initial SearchSpace (SearchSpace#0), and may also include other CORSET (control resource set) and SearchSpace (search space) information . The following behavior example of ServingCellConfigDedicated will configure the proprietary information of the initial BWP, such as PDCCH/PDSCH proprietary configuration information; in the PDCCH proprietary configuration, it contains non-initial CORESET and non-initial SearchSpace information, when this part of the configuration overlaps with the public configuration The priority of the proprietary configuration is higher. The present invention treats the overlapping part as a proprietary configuration; for example, the PDSCH proprietary information includes the demodulation reference signal (demodulation reference signal, DMRS) configuration, and the transmission configuration indication (Transmission Configuration Indication, TCI) configuration and other information. In the common configuration part, the downlink such as the initial COREST/PDSCH resource, and the uplink such as the PRACH resource/PUSCH resource/PUCCH resource are common to the UE in the cell. If a large number of user equipment switches back to the initial BWP, and monitor or data scheduling is performed on the common resource Dealing with it is likely to cause an overload of public resources.

Among them, the embodiment of the present invention performs access control on the initial part of the bandwidth, the base station judges the access state of the initial part of the bandwidth, obtains the channel state information of the initial part of the bandwidth, and obtains the resource state information of the initial part of the bandwidth from the channel state information. Bandwidth resources include public resources and dedicated resources, and the base station respectively determines whether public resources and dedicated resources are restricted to access. The base station presets resource restriction conditions, and judges whether the acquired resource status information meets the resource restriction conditions. If the public resource/exclusive resource status information meets the resource restriction condition, the public resource/exclusive resource is set to a prohibited access state; If the public resource/exclusive resource status information does not meet the resource restriction conditions, the public resource/exclusive resource is set to the allowed access state. Both public resources and proprietary resources are in the forbidden access state, and the initial part of the bandwidth is set to the forbidden access state. If the public resource is in the forbidden access state and the dedicated resource is in the allowed access state, the initial part of the bandwidth can be set to the forbidden access state or the allowed access state. When the initial part of the bandwidth is allowed to access, the user equipment Only perform service processing on the accessed dedicated resources, such as PDCCH monitoring in the dedicated CORESET; if the initial public resources are in the forbidden access state, the non-initial public resources and/or the dedicated resources are in the permitted state In the access state, the initial part of the bandwidth can be set to the forbidden or allowed state. When the initial part of the bandwidth is allowed to access, the user equipment only performs service processing on the accessed public resources, such as PDCCH monitoring and other actions are performed in the initial CORESET. The judgment of the uplink common resources of the initial part of the bandwidth is the same as the above process. Among them, the downlink of the initial part of the bandwidth is mainly COREST resources, and the uplink PRACH, PUSCH, and PUSCH can be considered separately or in an overall plan. When the non-initial CORESET in the public configuration part of the initial BWP, its judgment principle can be the same as or different from the initial CORESET, and its limited results are presented to the user equipment separately. The base station generates restricted access information according to the restricted result, that is, the access state of the initial partial bandwidth, and informs the user equipment through broadcast or dedicated RRC signaling. The IE format of the downlink initial partial bandwidth restricted access information may be, but is not limited to: List the configuration of the initial part of the downlink bandwidth, such as initial CORESET, public CORESET, exclusive CORESET, etc., and record the access status of each resource separately. Similarly, for the initial part of the bandwidth, the user equipment can also be selected for restricted control according to the user category and access priority.

For example, the IE of restricted access information may include the following examples:

Table 11

coresetZeroBarred, commonCoresetBarred and dedicatedCoresetBarred represent initial CORESET, public CORESET and proprietary CORESET, respectively. In addition, the IE of restricted access information may include the following examples:

Table 12

CoresetZeroBarred, CommonCoresetBarred, and DedicatedCoresetBarred can also perform restricted control according to user type and access priority, as described in the previous implementation manner.

Optionally, the user equipment queries whether the initial part of the bandwidth is restricted, and sends a query command for the restricted access information of the initial part of the bandwidth to the base station through RRC signaling. After receiving the query command, the base station determines the access of the initial part of the bandwidth. Into state. After determining whether the target part of the bandwidth allows the new user to access, the base station generates target restricted access information, and feeds the information back to the user equipment.

In step 102, the restricted access information is sent to the user equipment.

For example, after determining the access state of a part of the bandwidth, the base station generates restricted access information, and then sends the information to the user equipment through RRC signaling.

Among them, the base station will periodically or according to the channel state information of each part of the bandwidth reported by the user equipment, re-evaluate whether each part of the bandwidth is allowed to access new users. If the base station judges regularly, when the timer expires, it will notify the user equipment of the latest partial bandwidth restricted access information through broadcast or RRC commands; if the base station judges the access status based on the received partial bandwidth channel state information Different from the previous time, the user equipment is notified of the latest partial bandwidth restricted access information through broadcast or RRC command again. The message can be all the partial bandwidth, or a part of the partial bandwidth, or only the restricted access information of the changed partial bandwidth.

Among them, after the user equipment receives the restricted access information re-sent by the base station, it will refresh the saved restricted access information of part of the bandwidth.

A partial bandwidth switching method includes: receiving restricted access information sent by a base station; determining a final target partial bandwidth according to the restricted access information, and the final target partial bandwidth is in a state of allowing access.

As shown in Figure 3, the specific process of this part of the bandwidth switching method can be as follows:

In step 201, the restricted access information sent by the base station is received.

For example, the base station generates the restricted access information of each part of the bandwidth according to the access state of each part of the bandwidth, and then sends the restricted access information of each part of the bandwidth to the user equipment through broadcast or dedicated RRC signaling, and the user equipment receives each part. Bandwidth restricted access information.

Optionally, the user equipment first presets the target partial bandwidth before or during the start of the partial bandwidth switching procedure, and then queries the base station for restricted access information of the partial bandwidth through RRC signaling. After the base station judges the access status of this part of the bandwidth, it feeds back the information to the user equipment. After the user equipment receives the feedback information, if the preset target part of the bandwidth is allowed to access, it will continue the handover process and switch to this part of the bandwidth; if the preset target part of the bandwidth is forbidden to access, stop the handover process, or select a new one For the target part of the bandwidth, the process of querying restricted access information is initiated again. It may also be that the user equipment first queries the restricted access information of each part of the bandwidth, and then determines the final target part of the bandwidth according to the feedback information of the base station, and initiates a handover process to it.

Optionally, when the base station only performs access control on the initial part of the bandwidth, it generates initial restricted access information and sends it to the user equipment. The initial restricted access information received by the user equipment includes public resource restricted access information and proprietary access information. The resource restricted access information determines whether the initial part of the bandwidth can be accessed according to the initial restricted access information.

Optionally, the user equipment queries the limited access information of the initial partial bandwidth as needed, for example, initiates the query before or during the process of initiating the active handover to the initial partial bandwidth, and then receives the initial limited access information fed back by the base station, and determines Whether the initial part of the bandwidth can be accessed.

In step 202, the final target partial bandwidth is determined according to the restricted access information, and the final target partial bandwidth is in a state of allowing access.

For example, after receiving the restricted access information, the user equipment determines the final target partial bandwidth, and the final target partial bandwidth is allowed to be accessed.

Optionally, after receiving the restricted access information, the user equipment determines whether the preset target part bandwidth is restricted, and if the target part bandwidth is in the allowed access state, the target part bandwidth is the final target part bandwidth; if the target part When the bandwidth is in the state of prohibiting access, a target partial bandwidth is preset again.

Optionally, if the user equipment first queries the preset limited access information of the target part bandwidth, after receiving the access status of the target part bandwidth fed back by the base station, if access is allowed, the target part bandwidth is determined For the final target part of the bandwidth, if access is prohibited, the user equipment resets a target part of the bandwidth or stops actively initiated handover procedures.

Among them, when access control is performed on only the initial part of the bandwidth, it is judged whether the public resources and the dedicated resources in the initial part of the bandwidth are allowed to be accessed, and the base station generates initial restricted access information from the judgment result and sends it to the user equipment. The device determines whether to allow access to the initial part of the bandwidth during or before the handover process. According to the initial restricted access information received, the user equipment stops the handover process if both public resources and dedicated resources are forbidden to access; if the public resources are forbidden to access, the dedicated resources are allowed to be accessed, and then the access is allowed. After the initial part of the bandwidth, service processing is performed only in the exclusive resources that are allowed to be accessed; if the initial public resources are forbidden to access, the non-initial public resources and/or the exclusive resources are allowed to be accessed, and then the initial part is allowed to be accessed. After the bandwidth, service processing is performed only in the public resources that are allowed to be accessed.

Please refer to Figure 4. Figure 4 is a working flow chart of a partial bandwidth switching method provided by an embodiment of the present invention. As shown in Figure 4, the base station determines whether each part of the bandwidth allows new users to access, and generates the restriction of each part of the bandwidth. Access information, this information is sent to the user equipment, and the user equipment initiates an active handover process, determines the target part of the bandwidth or stops the handover process according to the access state of each part of the bandwidth. Please refer to Figure 5. Figure 5 is a working flow chart of another partial bandwidth switching method provided by an embodiment of the present invention. Send a query instruction for restricted access information of part of the bandwidth. After receiving the query instruction, the base station determines whether each part of the bandwidth allows access to a new user. According to the channel state of part of the bandwidth fed back by each user in the cell, determine whether each part of the bandwidth configured by the user equipment allows a new user to switch, and send the information to the user equipment through RRC signaling. The user equipment initiates an active handover process, determines the target part of the bandwidth or stops the handover process according to the restricted access information of each part of the bandwidth.

FIG. 6 is a schematic diagram of an exemplary wireless communication system 700 for performing the method disclosed according to the embodiments of the present invention. The embodiments described herein can be implemented using any suitably configured hardware and/or software. 6 illustrates a system 700, including a radio frequency circuit 710, a baseband circuit 720, a processor 730, a memory/storage device 740, a sensor 770, and an input/output (input/output, I/O) interface 780, which are connected to each other as shown .

The processor 730 may include circuitry, such as (but not limited to) one or more single-core or multi-core processors. The processor may include any combination of a general-purpose processor and a special-purpose processor, such as a graphics processor and an application processor (application processor). The processor may be coupled to the memory/storage device 740 and configured to execute instructions stored in the memory/storage device 740 to enable various applications and/or operating systems running on the system.

The transceiver 720 may include circuitry, such as (but not limited to) one or more single-core or multi-core processors. The processor may include a baseband (baseband) circuit and a radio frequency (RF) circuit. The baseband circuit can handle various radio control functions and communicate with one or more radio networks through radio frequency circuits. Radio control functions can include, but are not limited to, signal modulation, encoding, decoding, radio frequency conversion, and so on. In some embodiments, the baseband circuit can provide communications compatible with one or more radio technologies. For example, in some embodiments, the baseband circuit can support NR, evolved Universal Terrestrial Radio Access Network (EUTRAN) and/or other wireless metropolitan area networks (Wireless Metropolitan Area Network, WMAN), wireless Local area network (Wireless Local Area Network, WLAN), Wireless Personal Area Network (Wireless Personal Area Network, WPAN). An implementation in which the baseband circuit is configured to support radio communication of multiple wireless protocols may be referred to as a multi-mode baseband circuit. In various embodiments, the baseband circuit may include circuits for operating signals that are not strictly regarded as baseband frequencies. For example, in some embodiments, the baseband circuit may include a circuit that operates on a signal having an intermediate frequency (i.e., baseband frequency and radio frequency).

The radio frequency circuit can communicate with a wireless network using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuit may include switches, filters, amplifiers, etc. for communication with a wireless network. In various embodiments, the RF circuit may include circuitry for operating with signals that are not strictly regarded as being in radio frequency. For example, in some embodiments, the RF circuit may include a circuit for working with signals having an intermediate frequency between the baseband frequency and the radio frequency.

As used herein, "circuit" can refer to, participate in, or include application specific integrated circuits (Application Specific Integrated Circuit, ASIC), electronic circuits, processors (shared, dedicated chips or chipsets), and/or execute one or more software or Firmware programs, combinational logic circuits, and/or other suitable hardware components that provide the above-mentioned functions. In some embodiments, the circuit of the electronic device or the function related to the circuit may be implemented in one or more software or firmware modules. In some embodiments, part or all of the components of the baseband circuit, the application circuit, and/or the memory/storage device 740 may be implemented together on a system on a chip (SOC).

The memory/memory 740 can be used to load and store data and/or instructions for the system, for example. In one embodiment, the memory/memory may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM) and/or non-volatile memory, such as flash memory. In various embodiments, the I/O interface 780 may include one or more user interfaces for implementing user interaction with the system and/or peripheral component interfaces for implementing the interaction between peripheral components and the system. The user interface may include, but is not limited to, a physical keyboard or keypad, touch pad, speaker, microphone, etc. The peripheral component interface may include, but is not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power interface.

In various embodiments, the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system. In some embodiments, the sensor may include, but is not limited to, a gyroscope sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be a part of the baseband circuit and/or radio frequency circuit, or interact with the baseband circuit and/or radio frequency circuit to communicate with components of the positioning network, for example, global positioning system (GPS) satellite communication. In various embodiments, the system 700 may be a mobile computing device, such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smart phone, etc. In various embodiments, the system may have more or fewer components, and/or different architectures. Where appropriate, the methods described here can be implemented as computer programs. The computer program can be stored in a storage medium, such as a non-transitory storage medium.

The embodiments of the present disclosure may adopt a combination of technologies/processes in 3GPP specifications to create a final product.

A person with ordinary skills can understand that each unit, algorithm, and step described and disclosed in the embodiment of the present disclosure is implemented using electronic hardware or a software combination of computer and electronic hardware. Whether these functions run in hardware or software depends on the application conditions and design requirements of the technical solution. People with ordinary skills can use different ways to implement functions for each specific application, and such implementation should not go beyond the scope of the present disclosure. A person with an ordinary technical level can understand that since the working processes of the above systems, devices, and units are basically the same, they can refer to the working processes of the systems, devices, and units in the above embodiments. For ease of description and simplification, these working processes are not described in detail here.

It can be understood that the system, device, and method disclosed in the embodiments of the present invention may also be implemented in other ways. The above embodiment is only exemplary. The division of units is only based on the division of logic functions, and other divisions exist in the implementation. It is possible to combine or integrate multiple units or components in another system. It is also possible to omit or skip certain features. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communication coupling, etc., operate indirectly or communicatively through some ports, devices, or units through electrical, mechanical, or other types of means.

A unit that is a separate component is or is not a physically separate unit. These units are physical units or not, that is, they are located in one place or distributed on multiple network units, and these units are physical units or not. According to the purpose of the embodiment of the present invention, part or all of the units are used. In addition, each functional unit in this embodiment may be integrated in one processing unit, or physically independent, or two or more units integrated in one processing unit.

If the software functional unit is implemented and used and sold as a product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions proposed by the technical solutions of the present disclosure may be implemented essentially or partially in the form of software products. Alternatively, a part of the technical solution that is advantageous to the traditional technology can be implemented in the form of a software product. The software product in the computer is stored in a storage medium, and the software product includes commands for a computing device (for example, a personal computer, a server, or a network device) to run all or part of the steps disclosed in the technical solution of the present disclosure. The storage medium includes a USB disk (USB disk), a mobile hard disk, a read-only memory (read-only memory, ROM), a random access memory (random access memory, RAM), a floppy disk, or other media capable of storing program codes.

The foregoing describes in detail a partial bandwidth switching method and device provided by the embodiments of the present invention. Specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the present invention The method of the invention and its core idea; at the same time, for those skilled in the art, according to the idea of the invention, there will be changes in the specific implementation and the scope of application. In summary, the content of this specification should not be understood as Restrictions on the present invention.

Claims

A partial bandwidth switching method is characterized in that it includes:

The base station determines the access status of a part of the bandwidth, and generates restricted access information according to the access status; and

Send the restricted access information to the user equipment.
The access control method according to claim 1, wherein the restricted access information performs access control according to the type of the user equipment.
The access control method according to claim 1, wherein the restricted access information is sent to the user equipment through broadcast system information or dedicated RRC signaling.
The partial bandwidth switching method according to claim 1, wherein the determining the access state of the partial bandwidth comprises:

Receiving the restricted access information query instruction sent by the user equipment.
The partial bandwidth switching method according to claim 4, wherein the determining the access state of the partial bandwidth comprises:

Acquiring the classification of the user equipment, where the partial bandwidth is the partial bandwidth corresponding to the user equipment of the preset classification; and

The classification includes at least a user category or an access priority, where the access priority includes at least an access identity or an access category of the user equipment.
The partial bandwidth switching method according to claim 5, wherein the determining the access state of the partial bandwidth comprises:

Receiving a query instruction for target restricted access information sent by the user equipment, where the target restricted access information is restricted access information corresponding to the target partial bandwidth.
The partial bandwidth switching method according to claim 1, wherein the determining the access state of the partial bandwidth comprises:

Acquiring channel state information of the part of the bandwidth;

Determining that the channel state information satisfies a preset access barring condition, and the partial bandwidth is set to the access barring state; and

It is determined that the channel state information does not satisfy the access prohibition condition, and the partial bandwidth is set to the access permitted state.
The partial bandwidth switching method according to claim 7, wherein the judging that the channel state information satisfies a preset access barring condition, and setting the partial bandwidth to the access barring state comprises:

The channel state information includes a combination of at least one or more of the following: the number of users connected, the signal-to-noise ratio, the number of users in the radio resource control connection state, the noise floor, the channel quality indicator, the reference signal reception quality, and the reference Signal received power; and

The access prohibition condition includes that at least the number of accessed users is greater than a preset number of users threshold, and the signal-to-noise ratio is less than a preset signal-to-noise ratio threshold.
The partial bandwidth switching method according to claim 1, wherein the determining the access state of the partial bandwidth comprises:

Obtain the resource status information of the initial part of the bandwidth;

Judging that the resource status information satisfies a preset resource restriction condition, and the resource is set to the access prohibited state;

Determining that the resource status information does not satisfy the resource restriction condition, and setting the resource to the allowed access state; and

The resources include public resources and exclusive resources.
The partial bandwidth handover method according to claim 9, wherein the determining the access state of the partial bandwidth comprises:

Receiving a query instruction for initial restricted access information sent by the user equipment, where the initial restricted access information is restricted access information corresponding to the initial partial bandwidth.
The partial bandwidth switching method according to claim 9, wherein the judging that the resource status information satisfies a preset resource restriction condition, and setting the resource to the access prohibited state includes:

The public resource and the dedicated resource are in the access prohibited state, and the initial partial bandwidth is set to the access prohibited state.
The partial bandwidth switching method according to claim 9, wherein the determining that the resource state information does not satisfy the resource restriction condition, and setting the resource to the allowed access state includes:

When the public resource is in the forbidden access state and the dedicated resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, allowing processing on the dedicated resource The service of the user equipment.
The partial bandwidth switching method according to claim 9, wherein the determining that the resource state information does not satisfy the resource restriction condition, and setting the resource to the allowed access state includes:

When the initial public resource is in the forbidden access state and the non-initial public resource and/or the dedicated resource is in the permitted access state, the initial partial bandwidth is set to the permitted access state , Processing the service of the user equipment on the non-initial public resource.
A partial bandwidth switching method is characterized in that it includes:

The user equipment receives the restricted access information sent by the base station; and

The final target partial bandwidth is determined according to the restricted access information, and the final target partial bandwidth is in a state of allowing access.
The partial bandwidth handover method according to claim 14, wherein before the receiving restricted access information sent by the base station, the method comprises:

The user equipment sends the restricted access information query instruction to the base station, where the query instruction is used to query the restricted access information of the preset target partial bandwidth of the user equipment.
The partial bandwidth switching method according to claim 15, wherein the determining the final target partial bandwidth according to the restricted access information comprises:

When the preset target partial bandwidth is in a state of allowing access, the preset target partial bandwidth is the final target partial bandwidth; and

When the preset target partial bandwidth is in an access prohibited state, reset the target partial bandwidth.
The partial bandwidth handover method according to claim 15, wherein said receiving restricted access information sent by a base station comprises:

The user equipment sends a query instruction for target restricted access information to the base station, where the target restricted access information is restricted access information corresponding to the preset target partial bandwidth, and the query instruction is wireless Resource control RRC signaling.
The partial bandwidth handover method according to claim 14, wherein said receiving restricted access information sent by a base station comprises:

The user equipment receives initial restricted access information sent by the base station, where the initial restricted access information includes public resource restricted access information and dedicated resource restricted access information.
The partial bandwidth handover method according to claim 18, wherein said receiving restricted access information sent by a base station comprises:

The user equipment sends the initial restricted access information query instruction to the base station, where the initial restricted access information is restricted access information corresponding to the initial partial bandwidth.
The partial bandwidth switching method according to claim 18, wherein the partial bandwidth switching method comprises:

The public resource and the dedicated resource are in an access prohibited state, and the handover procedure for the user equipment to access the final target partial bandwidth is stopped.
The partial bandwidth switching method according to claim 18, wherein the partial bandwidth switching method comprises:

The public resource and the dedicated resource are in the access barred state, the handover procedure for the user equipment to access the final target part bandwidth is stopped, and the user equipment sends another query instruction to the base station to use For querying the restricted access information of another preset target partial bandwidth of the user equipment.
The partial bandwidth switching method according to claim 18, wherein the partial bandwidth switching method comprises:

When the public resource is in the forbidden access state and the dedicated resource is in the allowed access state, the service of the user equipment is processed on the dedicated resource.
The partial bandwidth switching method according to claim 18, wherein the partial bandwidth switching method comprises:

When the initial public resource is in the forbidden access state and the non-initial public resource and/or the dedicated resource is in the permitted access state, the user equipment is processed on the non-initial public resource Business.
The partial bandwidth switching method according to claim 14, wherein the restricted access information defines each partial bandwidth of the plurality of partial bandwidths as an access permitted state or an access prohibited state.
The partial bandwidth switching method according to claim 14, wherein the restricted access information defines that each user equipment category of a plurality of user equipment categories is associated with the allowed access state or the prohibited access state of the final target partial bandwidth Access status.
The partial bandwidth switching method according to claim 14, wherein the restricted access information defines that each of the multiple user equipment access priorities is associated with the allowed access of the final target partial bandwidth. The access state or the access barring state, wherein the access priority includes at least the access identity or the access category of the user equipment.
The partial bandwidth switching method according to claim 14, wherein the restricted access information sent by the base station is radio resource control RRC signaling or broadcast system information.
The partial bandwidth handover method according to claim 14, wherein the user equipment sends the restricted access information query instruction to the base station before or during the process of initiating the active handover to the initial partial bandwidth, and The query instruction is used to query the restricted access information of the preset target partial bandwidth of the user equipment.
A computer-readable storage medium storing a computer program that causes a computer to execute the method of any one of claims 1 to 10.
A computer-readable storage medium storing a computer program that causes a computer to execute the method of any one of claims 14 to 28.
A user device, characterized in that it comprises:

Transceiver; and

The processor is connected to the transceiver and configured to perform the following steps, including:

The user equipment receives the restricted access information sent by the base station; and

The final target partial bandwidth is determined according to the restricted access information, and the final target partial bandwidth is in a state of allowing access.
The user equipment according to claim 31, wherein the processor further executes the following steps before receiving the restricted access information sent by the base station, including:

The user equipment sends the restricted access information query instruction to the base station, where the query instruction is used to query the restricted access information of the preset target partial bandwidth of the user equipment.
The user device according to claim 32, wherein the processor further executes the following steps, including:

When the preset target partial bandwidth is in the state of allowing access, the preset target partial bandwidth is the final target partial bandwidth; and

When the preset target partial bandwidth is in an access prohibited state, reset the target partial bandwidth.
The user device according to claim 32, wherein the processor further executes the following steps, comprising:

The user equipment sends a query instruction for target restricted access information to the base station, where the target restricted access information is restricted access information corresponding to the preset target partial bandwidth, and the query instruction is wireless Resource control RRC signaling.
The user device according to claim 31, wherein the processor further executes the following steps, including:

The user equipment receives initial restricted access information sent by the base station, where the initial restricted access information includes public resource restricted access information and dedicated resource restricted access information.
The user device according to claim 35, wherein the processor further executes the following steps, comprising:

The user equipment sends the initial restricted access information query instruction to the base station, where the initial restricted access information is restricted access information corresponding to the initial partial bandwidth.
The user device according to claim 35, wherein the processor further executes the following steps, comprising:

The public resource and the dedicated resource are in an access prohibited state, and the handover procedure for the user equipment to access the final target partial bandwidth is stopped.
The user device according to claim 35, wherein the processor further executes the following steps, comprising:

The public resource and the dedicated resource are in the access barred state, the handover procedure for the user equipment to access the final target part bandwidth is stopped, and the user equipment sends another query instruction to the base station to use For querying the restricted access information of another preset target partial bandwidth of the user equipment.
The user device according to claim 35, wherein the processor further executes the following steps, comprising:

When the public resource is in the forbidden access state and the dedicated resource is in the allowed access state, the service of the user equipment is processed on the dedicated resource.
The user device according to claim 35, wherein the processor further executes the following steps, comprising:

When the initial public resource is in the forbidden access state and the non-initial public resource and/or the dedicated resource is in the permitted access state, the user equipment is processed on the non-initial public resource Business.
The user equipment according to claim 31, wherein the restricted access information defines each of the plurality of partial bandwidths as an access permitted state or an access prohibited state.
The user equipment according to claim 31, wherein the restricted access information defines that each user equipment category in a plurality of user equipment categories is associated with the allowed access state or the access prohibited state of the bandwidth of the final target portion state.
The user equipment according to claim 31, wherein the restricted access information defines that each access priority of a plurality of user equipment access priorities is associated with the allowed access state of the bandwidth of the final target portion Or access prohibited state, wherein the access priority includes at least the access identity or access category of the user equipment.
The user equipment according to claim 31, wherein the restricted access information sent by the base station is radio resource control RRC signaling or broadcast system information.
The user equipment according to claim 31, wherein the user equipment sends the restricted access information query instruction to the base station before or during the process of initiating the active handover to the initial partial bandwidth, the query instruction Used to query the restricted access information of the preset target partial bandwidth of the user equipment.
A base station, characterized in that it comprises:

Transceiver; and

The processor is connected to the transceiver and configured to perform the following steps, including:

The base station determines the access status of a part of the bandwidth, and generates restricted access information according to the access status; and

Send the restricted access information to the user equipment.
The base station according to claim 46, wherein the restricted access information performs access control according to the type of the user equipment.
The base station according to claim 46, wherein the restricted access information is sent to the user equipment through broadcast system information or dedicated RRC signaling.
The base station according to claim 46, wherein the processor further executes the following steps, comprising:

Receiving the restricted access information query instruction sent by the user equipment.
The base station according to claim 49, wherein the processor further executes the following steps, comprising:

Acquiring the classification of the user equipment, where the partial bandwidth is the partial bandwidth corresponding to the user equipment of the preset classification; and

The classification includes at least a user category or an access priority, where the access priority includes at least an access identity or an access category of the user equipment.
The base station according to claim 50, wherein the processor further executes the following steps, comprising:

Receiving a query instruction for target restricted access information sent by the user equipment, where the target restricted access information is restricted access information corresponding to the target partial bandwidth.
The base station according to claim 46, wherein the processor further executes the following steps, comprising:

Acquiring channel state information of the part of the bandwidth;

Determining that the channel state information satisfies a preset access barring condition, and the partial bandwidth is set to the access barring state; and

It is determined that the channel state information does not satisfy the access prohibition condition, and the partial bandwidth is set to the access permitted state.
The base station according to claim 52, wherein the processor further executes the following steps, comprising:

The channel state information includes a combination of at least one or more of the following: the number of users connected, the signal-to-noise ratio, the number of users in the radio resource control connection state, the noise floor, the channel quality indicator, the reference signal reception quality, and the reference Signal received power; and

The access prohibition condition includes that at least the number of accessed users is greater than a preset number of users threshold, and the signal-to-noise ratio is less than a preset signal-to-noise ratio threshold.
The base station according to claim 46, wherein the processor further executes the following steps, comprising:

Obtain the resource status information of the initial part of the bandwidth;

Judging that the resource status information satisfies a preset resource restriction condition, and the resource is set to the access prohibited state;

Determining that the resource status information does not satisfy the resource restriction condition, and setting the resource to the allowed access state; and

The resources include public resources and exclusive resources.
The base station according to claim 54, wherein the processor further executes the following steps, comprising:

Receiving a query instruction for initial restricted access information sent by the user equipment, where the initial restricted access information is restricted access information corresponding to the initial partial bandwidth.
The base station according to claim 54, wherein the processor further executes the following steps, comprising:

The public resource and the dedicated resource are in the access prohibited state, and the initial partial bandwidth is set to the access prohibited state.
The base station according to claim 54, wherein the processor further executes the following steps, comprising:

When the public resource is in the forbidden access state and the dedicated resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, allowing processing on the dedicated resource The service of the user equipment.
The base station according to claim 54, wherein the processor further executes the following steps, comprising:

When the initial public resource is in the forbidden access state and the non-initial public resource and/or the dedicated resource is in the permitted access state, the initial partial bandwidth is set to the permitted access state , Processing the service of the user equipment on the non-initial public resource.