A partial bandwidth switching method and apparatus

Abstract

This invention discloses a partial bandwidth switching method and apparatus, comprising: determining the access status of a partial bandwidth, generating restricted access information based on the access status, and sending the restricted access information to a user equipment. The user equipment determines a final target partial bandwidth based on the restricted access information, switches to the final target partial bandwidth, or stops the switching process. Therefore, this solution can prevent switching back to the initial partial bandwidth during the switching process from an existing partial bandwidth. This solution is applicable to various scenarios of switching between partial bandwidths, and not just scenarios of switching back to the initial partial bandwidth.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and specifically to a method and apparatus for partial bandwidth (BWP) switching. Background Technology

[0002] 5G use cases include enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). Between mMTC and URLLC, there is another category of application scenarios that are more time-sensitive and have relatively lower device complexity, such as industrial IoT sensors, smart monitoring in smart cities, and wearable devices. These new IoT devices have similar complexity and cost to URLLC / eMBB devices, are relatively smaller in size, and have lower requirements for bandwidth and peak data rates. The 3GPP RAN1 group initiated a project in Release 17, "support of reduced capability NR devices," to study how to support these new IoT devices, also known as Reduced Capability User Equipment (RedCap UE). RedCap UEs have significantly less bandwidth compared to traditional New Radio (NR) UEs. BWP (Bandwidth Part) is a concept introduced in NR. In NR, the UE's bandwidth can change dynamically; when traffic is high, the system allocates a large bandwidth BWP to the UE; when traffic is low, it allocates a small bandwidth. BWPs are mainly divided into two categories: initial BWPs and dedicated BWPs. Initial BWPs are primarily used for receiving RMSI (Residual Minimum System Information) and initiating random access; while dedicated BWPs are mainly used for data service transmission, and their bandwidth is generally larger than that of initial BWPs. Uplink and downlink each have their own initial and dedicated BWPs. As IoT devices, Redcap UEs are numerous within a cell, placing a heavy load on the limited radio resources where BWPs reside. In particular, initial BWPs must carry signaling such as the Paging Control Channel (PCCH) for paging, the Physical Random Access Channel (PRACH) for random access procedures, and Radio Resource Control (RRC). The load on initial downlink BWPs increases with the number of Redcap UEs. The reduced complexity of RedCap UEs, such as the reduced number of antennas, affects coverage. To improve coverage, the network transmits on the broadcast channel at a low bit rate or with retransmission techniques. This application, coupled with the large number of RedCap UEs, further exacerbates the load on the initial BWP.

[0003] In the current 3GPP specifications, there are four triggering methods for BWP handover: Handover based on DCI indication: This is used when data scheduling is available. The BWP handover indication is carried in the scheduling DCI. After receiving the indication, the UE performs a BWP handover and then data processing. DCI scheduling is mainly used for switching from the initial BWP to a dedicated BWP for data processing; however, when the number of dedicated BWPs configured at higher layers is less than four, the possibility of switching back to the initial BWP via scheduling DCI cannot be ruled out. Handover based on RRC indication: This is used after the UE completes initial access and enters the RRC connected state, or after RRC reconfiguration, or after SCell activation, for the UE to switch from the initial BWP to the configured firstActive BWP. This scheme is used after initial random access and cannot solve the problem of excessive load on the initial BWP during the initial random access process. Timer-based handover: When configuring the serving cell for the UE, the base station configures dedicated BWPs for uplink and downlink, and also configures an inactive timer for the downlink BWP. This timer is used to switch to the default downlink BWP (if configured) after the timer expires if the UE has not had service scheduling for a long time; otherwise, it switches to the initial downlink BWP. This scheme switches from the active downlink BWP to the default or initial downlink BWP. Handover during random access: The active BWP needs to initiate random access, but the current uplink BWP has no PRACH configuration. It needs to switch the uplink BWP to the initial uplink BWP for random access, and the corresponding downlink BWP also needs to switch to the pair corresponding to the uplink BWP. During the random access process, the uplink BWP and downlink BWP need to be paired (using the same BWP number) to send and receive messages, so they are coupled together during handover.

[0004] Among these four BWP switching methods, there are scenarios where the user switches back to the initial BWP. As mentioned earlier, in RedCapUE applications, the initial BWP is overloaded, and switching back to the initial BWP exacerbates its load. Therefore, existing technologies need improvement. Summary of the Invention

[0005] This invention provides a method and apparatus for partial bandwidth switching, which prevents switching back to the initial partial bandwidth.

[0006] An embodiment of the present invention provides a method for partial bandwidth switching, comprising: determining the access status of a portion of the bandwidth; generating restricted access information based on the access status; and sending the restricted access information to the user equipment.

[0007] Optionally, in some embodiments of the present invention, determining the access status of a portion of the bandwidth includes:

[0008] Receive a query command for the restricted access information sent by the user equipment.

[0009] Optionally, in some embodiments of the present invention, determining the access status of a portion of the bandwidth includes:

[0010] The user equipment is classified, and the partial bandwidth is the partial bandwidth corresponding to the user equipment of the preset classification.

[0011] The classification includes at least user categories or access priorities.

[0012] Optionally, in some embodiments of the present invention, determining the access status of a portion of the bandwidth includes:

[0013] The system receives a query instruction for target restricted access information sent by the user equipment, wherein the target restricted access information is the restricted access information corresponding to a portion of the target bandwidth.

[0014] Optionally, in some embodiments of the present invention, determining the access status of a portion of the bandwidth includes:

[0015] Obtain the channel state information of the aforementioned portion of the bandwidth;

[0016] If the channel state information is determined to meet the preset access prohibition condition, the portion of bandwidth is set to the access prohibition state.

[0017] If the channel state information does not meet the access prohibition condition, the portion of the bandwidth is set to the access allowment state.

[0018] Optionally, in some embodiments of the present invention, determining that the channel state information meets a preset access-prohibited condition, and setting a portion of the bandwidth to the access-prohibited state, includes:

[0019] The channel state information includes at least one or more of the following combinations: number of accessing users, signal-to-noise ratio, number of users in radio resource control connection state, noise floor, channel quality indication, reference signal reception quality, and reference signal reception power;

[0020] The conditions for prohibiting access include at least the number of users accessing the system being greater than a preset user threshold, and the signal-to-noise ratio being less than a preset signal-to-noise ratio threshold.

[0021] Optionally, in some embodiments of the present invention, determining the access status of a portion of the bandwidth includes:

[0022] Obtain resource status information for the initial portion of the bandwidth;

[0023] If the resource status information is determined to meet the preset resource restriction conditions, the resource is set to the prohibited access state.

[0024] If the resource status information does not meet the resource restriction conditions, the resource is set to the allowed access state.

[0025] The resources include public resources and proprietary resources.

[0026] Optionally, in some embodiments of the present invention, determining the access status of a portion of the bandwidth includes:

[0027] The system receives a query instruction for initial restricted access information sent by the user equipment, wherein the initial restricted access information is the restricted access information corresponding to the initial partial bandwidth.

[0028] Optionally, in some embodiments of the present invention, determining that the resource status information meets preset resource restriction conditions and setting the resource to the prohibited access state includes:

[0029] The public resources and the private resources are in the prohibited access state, and the initial portion of the bandwidth is set to the prohibited access state.

[0030] Optionally, in some embodiments of the present invention, determining that the resource status information does not meet the resource restriction condition and setting the resource to the allowed access state includes:

[0031] When the public resource is in the prohibited access state and the private resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, allowing the user equipment's services to be processed on the private resource.

[0032] Optionally, in some embodiments of the present invention, determining that the resource status information does not meet the resource restriction condition and setting the resource to the allowed access state includes:

[0033] When the initial public resource is in the prohibited access state, and the non-initial public resource and / or the proprietary resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, allowing the user equipment's services to be processed on the non-initial public resource.

[0034] An embodiment of the present invention provides a partial bandwidth switching method, comprising: receiving restricted access information sent by a base station; determining a final target partial bandwidth based on the restricted access information, wherein the final target partial bandwidth is in an allowed access state.

[0035] Optionally, in some embodiments of the present invention, determining the final target portion of the bandwidth based on the restricted access information includes:

[0036] A preset target bandwidth is defined, and the target bandwidth is in an access-allowed state. The target bandwidth is the final target bandwidth.

[0037] The target bandwidth is in a restricted access state; the target bandwidth is then reset.

[0038] Optionally, in some embodiments of the present invention, the restricted access information sent by the receiving base station includes:

[0039] Send a query command for the restricted access information to the base station.

[0040] Optionally, in some embodiments of the present invention, the restricted access information sent by the receiving base station includes:

[0041] The target bandwidth is preset;

[0042] A query command for target restricted access information is sent to the base station, wherein the target restricted access information is the restricted access information corresponding to a portion of the target bandwidth.

[0043] Optionally, in some embodiments of the present invention, the restricted access information sent by the receiving base station includes:

[0044] The system receives initial restricted access information sent by the base station, which includes public resource restricted access information and private resource restricted access information.

[0045] Optionally, in some embodiments of the present invention, the restricted access information sent by the receiving base station includes:

[0046] Send a query command for the initial restricted access information to the base station. The initial restricted access information is the restricted access information corresponding to the initial portion of the bandwidth.

[0047] Optionally, in some embodiments of the present invention, determining the final target portion of the bandwidth based on the restricted access information includes:

[0048] The public resources and the private resources are in a prohibited access state, and the switching process is stopped.

[0049] The public resource is in the prohibited access state, the private resource is in the allowed access state, and the user equipment's services are processed on the private resource; or the handover process is stopped.

[0050] When the initial public resource is in the prohibited access state, and the non-initial public resource and / or the proprietary resource is in the allowed access state, the user equipment's services are processed on the non-initial public resource; or the handover process is stopped.

[0051] The method disclosed in this invention can be programmed as computer-executable instructions stored in a non-volatile computer-readable medium. When loaded into a computer, the non-volatile computer-readable medium instructs the computer's processor to execute the method.

[0052] The non-volatile computer-readable medium may include 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 read-only memory, EPROM, electronically erasable programmable read-only memory, and flash memory.

[0053] The method disclosed in this invention can be programmed into a computer program product that causes a computer to execute the method of this invention.

[0054] This invention, through its embodiments, determines the access status of a portion of the bandwidth, generates restricted access information based on that access status, and sends the restricted access information to the user equipment. The user equipment then determines the final target portion of the bandwidth based on the restricted access information and switches to that final target portion of the bandwidth, or stops the switching process. Therefore, this solution can prevent switching back to the initial portion of the bandwidth during the switching process from an existing portion of the bandwidth. This solution is applicable to various scenarios involving switching between different portions of the bandwidth, and not just scenarios involving switching back to the initial portion of the bandwidth. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a schematic diagram of a base station, user equipment, and network entity provided in one embodiment of the present invention; Figure 2 This is a flowchart illustrating a partial bandwidth switching method according to an embodiment of the present invention;

[0057] Figure 3 This is a flowchart illustrating another partial bandwidth switching method provided in an embodiment of the present invention;

[0058] Figure 4 This is a flowchart illustrating a partial bandwidth switching method provided in an embodiment of the present invention.

[0059] Figure 5 This is a flowchart of another partial bandwidth switching method provided in an embodiment of the present invention.

[0060] Figure 6This is a schematic diagram of the system to which the partial bandwidth switching method provided in the application embodiment of the present invention is applied. Detailed Implementation

[0061] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] This invention provides a partial bandwidth switching method and apparatus. User equipment in this invention includes industrial IoT sensors, intelligent monitoring systems in smart cities, wearable devices, etc.

[0063] The following sections provide detailed descriptions of each example. It should be noted that the order in which the embodiments are described is not intended to limit the preferred order of the embodiments.

[0064] Reference Figure 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 connection between the devices and device components is... Figure 1 The following are shown in the diagram using lines and arrows. UE 10a may include processor 11a, memory 12a, and transceiver 13a. UE 10b may include processor 11b, memory 12b, and transceiver 13b. Base station 200a may include processor 201a, memory 202a, and transceiver 203a. Network entity device 300 may include processor 301, memory 302, and transceiver 303. Each of processors 11a, 11b, 201a, and 301 may be configured to implement the functions, procedures, and / or methods described herein. Multiple layers of the radio interface protocol may be implemented in processors 11a, 11b, 201a, and 301. Each memory 12a, 12b, 202a, and 302 stores various programs and information in an operational state to operate the connected processor. Each transceiver 13a, 13b, 203a, and 303 is coupled to a connected processor in an operational state to transmit and / or receive radio signals. Base station 200a may be an eNB, gNB, or other radio node.

[0065] Each of processors 11a, 11b, 201a, and 301 may include a general-purpose central processing unit (CPU), an application-specific integrated circuit (ASIC), other chipsets, logic circuitry, and / or data processing devices. Each of memories 12a, 12b, 202a, and 302 may include read-only memory (ROM), random access memory (RAM), flash memory, a memory card, storage media, other storage devices, and / or any combination of memories and storage devices. Each transceiver 13a, 13b, 203a, and 303 may include baseband circuitry and radio frequency (RF) circuitry for processing radio frequency signals. When embodiments of the invention are implemented in software, the techniques described herein can be implemented by modules, programs, functions, entities, etc., that perform the functions described herein. These modules may be stored in memory and executed by the processor. The memory may be implemented internally or externally to the processor, wherein the memory may be communicatively coupled to the processor in various ways known in the art.

[0066] The network entity device 300 can be a node in a central network (CN). The CN can include an LTE CN or a 5G core (5GC), which can include network entities such as user plane function (UPF), session management function (SMF), mobility management function (AMF), unified data management (UDM), policy control function (PCF), control plane / user plane separation (CUPS), authentication server function (AUSF), network slice selection function (NSSF), and network exposure function (NEF).

[0067] A partial bandwidth switching method includes: determining the access status of a portion of the bandwidth; generating restricted access information based on the access status; and sending the restricted access information to a user equipment.

[0068] like Figure 2 As shown, the specific process of this bandwidth switching method can be as follows:

[0069] In step 101, the base station determines the access status of a portion of the bandwidth and generates restricted access information based on the access status.

[0070] For example, the base station determines the access status of each bandwidth segment, i.e., whether each bandwidth segment allows new users to access. Based on the access status of each bandwidth segment, it generates restricted access information for each bandwidth segment and then sends this restricted access information to the user equipment via broadcast or dedicated RRC signaling. This restricted access information can be broadcast to the user equipment via system information, such as the Master Information Block or System Information Block Type 1.

[0071] Specifically, if a portion of the bandwidth allows new users to access, then that portion of the bandwidth is in an access-allowed state; if a portion of the bandwidth does not allow new users to access, then that portion of the bandwidth is in an access-prohibited state. The base station acquires the channel state information for each portion of the bandwidth. Based on the acquired channel state information or other factors such as time, it determines, according to a certain strategy, whether the channel state of that portion of the bandwidth has deteriorated to a certain extent. If so, that portion of the bandwidth is placed in an access-prohibited state, disallowing new users to access, in order to prevent further deterioration of the channel state.

[0072] The channel state information for a portion of the bandwidth includes, but is not limited to, the number of accessing users, signal-to-noise ratio (SINR), the number of users in the radio resource control connected state, noise floor, channel quality indicator (CQI), reference signal received quality, and reference signal received power. The source of the channel state information may be: before MSG4, measurement configuration is sent to the user equipment via broadcast signaling, and the user equipment reports the channel state information to the base station after measurement; or the base station obtains it through historically retained information or information reported by other user equipment in the cell.

[0073] The base station's pre-set strategy of disallowing new users from accessing a portion of its bandwidth includes conditions such as the number of users accessing the bandwidth exceeding a preset user threshold, the signal-to-noise ratio (SNR) being less than a preset SNR threshold, a combination of two disallowing conditions, or setting a time period as the restricted access period. These disallowing conditions can be any one of these conditions or a combination thereof, and are not limited to those listed in the embodiments of this invention. If the channel state information of the portion of bandwidth meets the above disallowing conditions, that portion of bandwidth is in a disallowed access state; if the channel state information of the portion of bandwidth does not meet the above disallowing conditions, that portion of bandwidth is in a permitted access state.

[0074] In this process, after the base station determines the access status based on the channel state information of a portion of the bandwidth, it generates corresponding restricted access information. This information is then communicated to the user equipment via broadcast or a dedicated RRC signaling message containing information elements (IEs) for restricted access of the portion of bandwidth, such as MSG4 for random access or reconfiguration messages. The IE includes the access status of each portion of the bandwidth and the access status of that portion. The structure of the IE is not restricted. It can carry restricted access information for changed portions of bandwidth, restricted access information for a single portion of bandwidth, or restricted access information for all configured portions of bandwidth in the signaling. For example, the structure of the IE can be represented as follows:

[0075] Table 1

[0076]

[0077] The restricted access information defines each portion of the bandwidth identified by multiple bwp-Ids as either an allowed access state or a prohibited access state.

[0078] The base station can determine the access status of a portion of the bandwidth of all user equipment connected to it, but not all user equipment's bandwidth needs to be determined. Access control can be performed based on user category (UE Category, or Cat for short). UE Category types are as follows: Cat-M1, Cat-M2, Cat-0, Cat-1, Cat-2, ... UE Category represents the terminal capability level, indicating the terminal's supported data processing capabilities (download and upload rates), maximum spatial multiplexing, modulation and coding capabilities, etc. One or more user categories can be preset, and access control can be performed on a portion of the bandwidth of user equipment in the preset category. For example, if there are many user equipment connected to Cat-0, Cat-1, Cat-2, ..., access control can be set to perform access control only on a portion of the bandwidth of user equipment in Cat-0, Cat-1, and Cat-2. For example, the structure of an IE can be represented as follows:

[0079] Table 2

[0080]

[0081] Allowed indicates that access is permitted; notAllowed indicates that access is prohibited. Alternatively, the structure of IE can be represented as follows:

[0082] Table 3

[0083]

[0084] The `barredCategory` indicates the category of user devices that are prohibited from accessing the site. Alternatively, the IE structure can be represented as follows:

[0085] Table 4

[0086]

[0087] In the example of the IE, the restricted access information defines each of the multiple user equipment categories as associated with an allowed or denied access status of the final target portion of the bandwidth.

[0088] Additionally, partial bandwidth access control can be implemented for user equipment based on access priorities from higher levels. Access priorities are derived from, for example, a combination mapping of defined access identities and access categories; other priorities can also be derived from more combinations, and this invention does not limit this. The access priorities, for example, are mapping combinations of one or more access identities, access categories, or other priorities as defined in TS 22.261 Chapter 6.22. An access priority threshold can be preset, and partial bandwidth access control can be implemented for user equipment with access priorities greater than this threshold; alternatively, one or more access priorities can be preset, and access control can be implemented for user equipment with preset access priorities. For access control based on user categories, the IE format for partial bandwidth-limited information can be: listing each user category, followed by the access status for each category; or listing user categories with prohibited access and those with allowed access; the IE format is not limited to the above forms. For access control based on access priorities, the IE format for partial bandwidth-limited information can be: listing each access priority, followed by the access status for each priority; or listing access priorities with prohibited access and those with allowed access; the IE format is not limited to the above forms. For example, the structure of IE can be represented in the following way:

[0089] Table 5

[0090]

[0091] `priority-1Access` and `priority-2Access` represent the access priority of the user device. `Allowed` indicates that access is allowed; `notAllowed` indicates that access is prohibited. Alternatively, the structure in Internet Explorer can be represented as follows:

[0092] Table 6

[0093]

[0094] Each bit in barredAccessPriority represents an access priority. Alternatively, the IE structure can be represented as follows:

[0095] Table 7

[0096]

[0097] barredAccessPriority represents an access priority. In the example of the IE, the restricted access information defines each of a plurality of user equipment access priorities as associated with an allowed or prohibited access state of a final target portion of bandwidth, wherein the access priority includes at least the user equipment's access identity or access category.

[0098] Optionally, the user equipment (UE) queries whether access to each portion of the bandwidth is restricted. It sends a query command for restricted access information of the restricted bandwidth to the base station via RRC signaling. Upon receiving this query command, the base station determines the access status of the restricted bandwidth. Based on the channel status of the restricted bandwidth reported by each user within the cell, it determines whether new user access is permitted for each portion of the bandwidth configured for the UE, and sends this information to the UE via RRC signaling. The IE information can be any of the methods described above for the base station to notify the UE.

[0099] In 3GPP TS38.331, ServingCellConfigCommon contains the following main configurations for downlink BWP:

[0100] Table 8

[0101]

[0102] Similarly, the initial BWP configuration for uplink is mainly related to RACH, PUSCH, and PUSCH:

[0103] Table 9

[0104]

[0105] In the BWP#0 Dedicated section, the final configuration of the downlink initial BWP mainly involves the configuration of PDSCH and PDCCH:

[0106] Table 10

[0107]

[0108] From 3GPP TS38.331, we can see that the initial BWP (BWP#0) has two configurations. Configuration 1 only includes the ServingCellConfigCommon part, which includes both uplink and downlink common BWPs. Configuration 2 includes both the ServingCellConfigCommon and ServingCellConfig parts. The ServingCellConfig part includes both uplink and downlink proprietary BWPs. It can be understood that the ServingCellConfigCommon part is a cell-level common configuration, meaning it is shared by all user equipment. Configuration 2 can also configure a portion specific to user equipment, which is configured through the MSG4 message in the random access procedure. The initial BWP in configuration 2 contains both proprietary and common time-frequency resources. The ServingCellConfigCommon section configures common information for the initial BWP, such as the start position, bandwidth, cyclic prefix (CP), subcarrier spacing (SCS), and common configuration information for the Physical Downlink Control Channel (PDCCH) and Physical Downlink Shared Channel (PDSCH). The common configuration information for the PDCCH includes the initial control resource set (CORESET) CORESET#0, the initial searchspace (SearchSpace#0), and may also include other CORESETs and searchspaces. Taking the following lines as an example, ServingCellConfigDedicated will configure the proprietary information of the initial BWP, such as the proprietary configuration information of PDCCH / PDSCH. The proprietary configuration of PDCCH includes information on non-initial CORESET and non-initial SearchSpace. When this part of the configuration overlaps with the common configuration, the proprietary configuration has a higher priority. This invention treats the overlapping parts as proprietary configurations. For example, the proprietary information of PDSCH includes the demodulation reference signal (DMRS) configuration, transmission configuration indication (TCI) configuration, and other information.In the common configuration section, downlink resources such as the initial COREST / PDSCH resources and uplink resources such as PRACH / PUSCH / PUCCH resources are shared by UEs within the cell. If a large number of user equipments switch back to the initial BWP and perform listening or data scheduling processing on the common resources, it may cause overload of the common resources.

[0109] In this embodiment of the invention, access control is performed on the initial portion of the bandwidth. The base station determines the access status of the initial portion of the bandwidth, obtains the channel status information of the initial portion of the bandwidth, and obtains the resource status information of the initial portion of the bandwidth from the channel status information. The resources of the initial portion of the bandwidth include public resources and private resources. The base station determines whether the public resources and private resources are restricted from access. The base station presets resource restriction conditions and determines whether the obtained resource status information meets the resource restriction conditions. If the public resource / private resource status information meets the resource restriction conditions, the public resource / private resource is set to a prohibited access state; if the public resource / private resource status information does not meet the resource restriction conditions, the public resource / private resource is set to a permitted access state. If both public resources and private resources are in a prohibited access state, the initial portion of the bandwidth is set to a prohibited access state. If public resources are in a prohibited access state and private resources are in a permitted access state, the initial partial bandwidth can be set to either a prohibited or permitted access state. When the initial partial bandwidth allows access, the user equipment only performs service processing on the accessed private resources, such as PDCCH listening in the private CORESET. If the initial public resources are in a prohibited access state and non-initial public resources and / or private resources are in the permitted access state, the initial partial bandwidth can also be set to either a prohibited or permitted access state. When the initial partial bandwidth allows access, the user equipment only performs service processing on the accessed public resources, such as PDCCH listening in the non-initial CORESET. The determination of the uplink public resources in the initial partial bandwidth is the same as the above process. Among them, the downlink of the initial partial bandwidth is mainly COREST resources, and the uplink PRACH, PUSCH, and PUSCH can be considered separately or in a unified manner. When the non-initial CORESET in the public configuration part of the initial BWP, the determination principle can be the same as that of the initial CORESET or different, and the restricted result is presented to the user equipment separately. The base station generates restricted access information based on the restricted access status of the initial partial bandwidth, and notifies the user equipment via broadcast or dedicated RRC signaling. The IE format of the downlink initial partial bandwidth restricted access information can be, but is not limited to, listing the downlink initial partial bandwidth configuration such as initial CORESET, public CORESET, dedicated CORESET, etc., and recording the access status of each resource. Similarly, the initial partial bandwidth can also be restricted for user equipment based on user category and access priority.

[0110] For example, IE with restricted access information might include the following:

[0111] Table 11

[0112]

[0113] `coresetZeroBarred`, `commonCoresetBarred`, and `dedicatedCoresetBarred` represent the initial coreset, the common coreset, and the dedicated coreset, respectively. Additionally, IE instances with restricted access information can include examples like the following:

[0114] Table 12

[0115]

[0116] CoresetZeroBarred, CommonCoresetBarred, and DedicatedCoresetBarred can also implement restricted access based on user type and access priority, as described in previous implementations.

[0117] Optionally, the user equipment (UE) queries whether the initial partial bandwidth is subject to access restrictions by sending a query command for restricted access information of the initial partial bandwidth to the base station via RRC signaling. After receiving this query command, the base station determines the access status of the initial partial bandwidth. After determining whether the target partial bandwidth allows new user access, the base station generates target restricted access information and feeds this information back to the UE.

[0118] In step 102, the restricted access information is sent to the user equipment.

[0119] For example, after determining the access status of a portion of the bandwidth, the base station generates restricted access information and then sends this information to the user equipment via RRC signaling.

[0120] The base station periodically reassesses whether each bandwidth segment allows new users to access the network, either periodically or based on channel state information reported by the user equipment (UE). If the base station periodically assesses the bandwidth segment, it will re-inform the UE of the latest restricted access information via broadcast or RRC command when the timer expires. If the base station determines the access status based on the received channel state information for the bandwidth segment differs from the previous assessment, it will re-inform the UE of the latest restricted access information via broadcast or RRC command. The message can contain restricted access information for all bandwidth segments, a portion of the bandwidth, or only the changed bandwidth segments.

[0121] When a user equipment receives the restricted access information retransmitted by the base station, it will refresh the restricted access information of a portion of the bandwidth that it has already saved.

[0122] A partial bandwidth switching method includes: receiving restricted access information sent by a base station; determining a final target partial bandwidth based on the restricted access information, wherein the final target partial bandwidth is in an allowed access state.

[0123] like Figure 3 As shown, the specific process of this bandwidth switching method can be as follows:

[0124] In step 201, restricted access information sent by the base station is received.

[0125] For example, the base station generates restricted access information for each bandwidth based on the access status of each bandwidth segment, and then sends the restricted access information for each bandwidth segment to the user equipment via broadcast or dedicated RRC signaling. The user equipment receives the restricted access information for each bandwidth segment.

[0126] Optionally, before or during the partial bandwidth handover process, the user equipment (UE) first presets a target partial bandwidth and then queries the base station for restricted access information of that bandwidth via RRC signaling. After determining the access status of that bandwidth, the base station feeds this information back to the UE. Upon receiving the feedback, if the preset target partial bandwidth allows access, the UE continues the handover process and switches to that bandwidth; if the preset target partial bandwidth prohibits access, the UE stops the handover process or selects a new target partial bandwidth and initiates the process of querying restricted access information again. Alternatively, the UE can first query the restricted access information of each partial bandwidth, and then determine the final target partial bandwidth based on the feedback information from the base station, and initiate the handover process for it.

[0127] Optionally, when the base station performs access control only on the initial portion 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 private resource restricted access information. Based on the initial restricted access information, the user equipment determines whether it can access the initial portion of the bandwidth.

[0128] Optionally, the user equipment may query the restricted access information of the initial partial bandwidth as needed, such as before or during the process of initiating an active handover to the initial partial bandwidth, and then receive the initial restricted access information fed back by the base station to determine whether it can access the initial partial bandwidth.

[0129] In step 202, the final target portion bandwidth is determined based on the restricted access information, and the final target portion bandwidth is in an allowed access state.

[0130] For example, after receiving restricted access information, the user equipment determines the final target portion of the bandwidth, which is allowed access.

[0131] Optionally, after receiving restricted access information, the user equipment determines whether the preset target bandwidth is restricted. If the target bandwidth is in an allowed access state, then the target bandwidth is the final target bandwidth; if the target bandwidth is in a prohibited access state, then a new target bandwidth is preset.

[0132] Optionally, if the user equipment first queries the restricted access information of the preset target bandwidth, and after receiving the access status of the target bandwidth from the base station, if access is allowed, the target bandwidth is determined as the final target bandwidth; if access is prohibited, the user equipment resets the target bandwidth or stops the actively initiated handover process.

[0133] In this scenario, when access control is applied only to the initial portion of the bandwidth, the base station determines whether access is permitted for both public and private resources within that initial bandwidth. The base station generates initial restricted access information based on this determination and sends it to the user equipment (UE). The UE determines whether access to the initial portion of the bandwidth is permitted during or before the handover process. Based on the received initial restricted access information, if both public and private resources are prohibited from access, the UE stops the handover process. If public resources are prohibited but private resources are permitted, service processing is performed only on the permitted private resources after access to the initial portion of the bandwidth is granted. If initial public resources are prohibited but non-initial public resources and / or the aforementioned private resources are permitted, service processing is performed only on the permitted public resources after access to the initial portion of the bandwidth is granted.

[0134] Please see Figure 4 , Figure 4 This is a flowchart illustrating the workflow of a partial bandwidth switching method provided in an embodiment of the present invention, as follows: Figure 4 As shown, the base station determines whether each bandwidth segment allows new user access, generates restricted access information for each bandwidth segment, and sends this information to the user equipment. The user equipment initiates an active handover process, determining the target bandwidth segment based on the access status of each bandwidth segment, or stopping the handover process. Please refer to [link to relevant documentation]. Figure 5 , Figure 5 This is a flowchart of another partial bandwidth switching method provided in an embodiment of the present invention, as shown below. Figure 5As shown, the user equipment (UE) queries whether access to each bandwidth segment is restricted. It sends a query command for restricted access information of each bandwidth segment to the base station via RRC signaling. Upon receiving this query command, the base station determines whether each bandwidth segment allows access for a new user. Based on the channel status of each user's bandwidth segment within the cell, it determines whether the UE's configured bandwidth segments allow handover to a new user and sends this information to the UE via RRC signaling. The UE initiates an active handover procedure, determining the target bandwidth segment based on the restricted access information of each bandwidth segment or halting the handover procedure.

[0135] Figure 6 This is a schematic diagram of an exemplary wireless communication system 700 for performing the methods disclosed according to embodiments of the present invention. The embodiments described herein can be implemented using any suitably configured hardware and / or software. Figure 6 The system 700 is described, including radio frequency circuit 710, baseband circuit 720, processor 730, memory / storage device 740, sensor 770 and input / output (I / O) interface 780, which are connected to each other as shown in the figure.

[0136] 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 general-purpose processors and special-purpose processors, such as graphics processors and application processors. The processor may be coupled to memory / storage device 740 and configured to execute instructions stored in memory / storage device 740 to enable various applications and / or operating systems running on the system.

[0137] The baseband circuit 720 may include circuitry, such as (but not limited to) one or more single-core or multi-core processors. The processor may include baseband circuitry and radio frequency (RF) circuitry. The baseband circuitry can handle various radio control functions and communicate with one or more radio networks via the RF circuitry. Radio control functions may include, but are not limited to, signal modulation, encoding, decoding, and RF conversion. In some embodiments, the baseband circuitry can provide communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support NR, Evolved Universal Terrestrial Radio Access Network (EUTRAN), and / or other Wireless Metropolitan Area Network (WMAN), Wireless Local Area Network (WLAN), and Wireless Personal Area Network (WPAN). Implementations that configure the baseband circuitry to support radio communication for multiple wireless protocols are referred to as multi-mode baseband circuitry. In various embodiments, the baseband circuitry may include circuitry for operating signals that are not strictly considered as baseband frequencies. For example, in some implementations, the baseband circuit may include circuitry that operates in a signal having an intermediate frequency (i.e., baseband frequency and radio frequency).

[0138] The radio frequency (RF) circuit can communicate with a wireless network using modulated electromagnetic radiation through a non-solid-state medium. In various embodiments, the RF circuit may include switches, filters, amplifiers, etc., for communication with the wireless network. In various embodiments, the RF circuit may include circuitry for operating with signals not strictly considered to be in the radio frequency range. For example, in some embodiments, the RF circuit may include circuitry for operating with signals having an intermediate frequency between the baseband frequency and the radio frequency.

[0139] As used herein, "circuit" can refer to, participate in, or include application-specific integrated circuits (ASICs), electronic circuits, processors (shared, dedicated chips, or chipsets) and / or execution of one or more software or firmware programs, combinational logic circuits, and / or other suitable hardware components that provide the aforementioned functions. In some embodiments, the circuitry of an electronic device or the circuitry-related functions may be implemented in one or more software or firmware modules. In some embodiments, some or all of the baseband circuitry, application circuitry, and / or components of memory / storage device 740 may be implemented together on a system on a chip (SOC).

[0140] The memory / repository 740 can be used to load and store data and / or instructions, for example, for the system. In one embodiment, the memory / repository 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 user interaction with the system and / or peripheral component interfaces for peripheral component interaction with the system. The user interface may include, but is not limited to, a physical keyboard or keypad, a touchpad, a speaker, a 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, etc.

[0141] In various embodiments, sensor 770 may include one or more sensing devices to determine environmental conditions and / or location information relevant 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 part of, or interact with, baseband and / or radio frequency circuitry to communicate with components of a positioning network, such as Global Positioning System (GPS) satellites. In various embodiments, system 700 may be a mobile computing device, such as, but not limited to, a laptop computer, a tablet computer, a netbook, an ultrabook, a smartphone, etc. In various embodiments, the system may have more or fewer components and / or different architectures. Where appropriate, the methods described herein may be implemented as a computer program. This computer program may be stored in a storage medium, such as a non-transitory storage medium.

[0142] Embodiments of this disclosure can be created using a combination of technologies / processes in 3GPP specifications.

[0143] Those skilled in the art will understand that every unit, algorithm, and step described and disclosed in this disclosure is implemented using electronic hardware or a combination of computer and electronic hardware software. Whether these functions operate in hardware or software depends on the application conditions and design requirements of the technical solution. Those skilled in the art can implement functions in different ways for each specific application, and such implementations should not exceed the scope of this disclosure. Those skilled in the art will understand that since the working processes of the above systems, devices, and units are substantially the same, the working processes of the systems, devices, and units in the above embodiments can be referred to. For ease of description and simplification, these working processes will not be described in detail here.

[0144] It is understood that the systems, apparatuses, and methods disclosed in the embodiments of this invention can also be implemented in other ways. The above embodiments are merely exemplary. The division of units is based solely on logical function, while other divisions exist in the implementation. It is possible to combine or integrate multiple units or components into another system. It is also possible to omit or skip certain features. On the other hand, the mutual coupling, direct coupling, or communication coupling shown or discussed operates indirectly or communicatively through some ports, devices, or units via electrical, mechanical, or other means.

[0145] The units that are separate components may or may not be physically separate units. These units may or may not be physically separate units, meaning they may be located in one place or distributed across multiple network units. For the purposes of embodiments of the invention, some or all of the units are used. Furthermore, each functional unit in this embodiment may be integrated into a processing unit, physically independent, or two or more units integrated into a processing unit.

[0146] 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 in this disclosure can be implemented essentially or partially as a software product. Alternatively, a portion of a technical solution advantageous to conventional technology can be implemented as a software product. The software product in the computer is stored in a storage medium, which includes commands for a computing device (e.g., a personal computer, server, or network device) to execute all or part of the steps disclosed in the technical solutions of this disclosure. This storage medium includes a USB disk, a portable hard drive, read-only memory (ROM), random access memory (RAM), a floppy disk, or other media capable of storing program code.

[0147] The foregoing has provided a detailed description of a partial bandwidth switching method and apparatus provided by embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A partial bandwidth switching method, characterized in that, include: The base station determines the access status of a portion of the bandwidth and generates restricted access information based on the access status; and Send the restricted access information to the user equipment; The determination of the access status of a portion of the bandwidth includes: Obtain the channel state information of the aforementioned portion of the bandwidth; If the channel state information is determined to meet a preset access-prohibited condition, the portion of the bandwidth is set to an access-prohibited state; and If the channel state information does not meet the access prohibition condition, the portion of the bandwidth is set to the access allowment state. Wherein, determining that the channel state information meets the preset access prohibition condition, and setting a portion of the bandwidth to the access prohibition state, includes: The channel state information includes at least one or more combinations of the following: the number of accessing users, signal-to-noise ratio, the number of users in radio resource control (RRR) connection state, noise floor, channel quality indication, reference signal reception quality, and reference signal reception power; and The conditions for prohibiting access include at least the number of users accessing the system being greater than a preset user threshold, and the signal-to-noise ratio being less than a preset signal-to-noise ratio threshold.

2. The partial bandwidth switching method according to claim 1, characterized in that, The determination of the access status of a portion of the bandwidth includes: Receive a query command for the restricted access information sent by the user equipment.

3. The partial bandwidth switching method according to claim 2, characterized in that, The determination of the access status of a portion of the bandwidth includes: The user equipment is classified, and 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 access priority, wherein the access priority includes at least the access identity or access category of the user equipment.

4. The partial bandwidth switching method according to claim 3, characterized in that, The determination of the access status of a portion of the bandwidth includes: The system receives a query instruction for target restricted access information sent by the user equipment, wherein the target restricted access information is the restricted access information corresponding to a portion of the target bandwidth.

5. The partial bandwidth switching method according to claim 1, characterized in that, The determination of the access status of a portion of the bandwidth includes: Obtain resource status information for the initial portion of the bandwidth; If the resource status information is determined to meet the preset resource restriction conditions, the resource is set to the prohibited access state. If the resource status information does not meet the resource restriction conditions, the resource is set to the allowed access state; and The resources include public resources and proprietary resources.

6. The partial bandwidth switching method according to claim 5, characterized in that, The determination of the access status of a portion of the bandwidth includes: The system receives a query instruction for initial restricted access information sent by the user equipment, wherein the initial restricted access information is the restricted access information corresponding to the initial partial bandwidth.

7. The partial bandwidth switching method according to claim 5, characterized in that, The step of determining that the resource status information meets the preset resource restriction conditions and setting the resource to the prohibited access state includes: The public resources and the private resources are in the prohibited access state, and the initial portion of the bandwidth is set to the prohibited access state.

8. The partial bandwidth switching method according to claim 5, characterized in that, The step of determining that the resource status information does not meet the resource restriction conditions and setting the resource to the allowed access state includes: When the public resource is in the prohibited access state and the private resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, allowing the user equipment's services to be processed on the private resource.

9. The partial bandwidth switching method according to claim 5, characterized in that, The step of determining that the resource status information does not meet the resource restriction conditions and setting the resource to the allowed access state includes: When the initial public resource is in the prohibited access state, and the non-initial public resource and / or the proprietary resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, and the user equipment's services are processed on the non-initial public resource.

10. A partial bandwidth switching method, characterized in that, include: Report channel status information to the base station; The user equipment receives restricted access information sent by the base station, wherein the restricted access information is generated by the base station based on the access status of a portion of the bandwidth. If the channel status information meets the preset access prohibition condition, the portion of the bandwidth is set to the access prohibition state; and if the channel status information does not meet the access prohibition condition, the portion of the bandwidth is set to the access allow state. and The final target portion bandwidth is determined based on the restricted access information, and the final target portion bandwidth is in an allowed access state based on the channel state information. The channel state information includes at least one or more of the following combinations: number of accessing users, signal-to-noise ratio, number of users in radio resource control connection state, noise floor, channel quality indication, reference signal reception quality, and reference signal reception power; The conditions for prohibiting access include at least the number of users accessing the system being greater than a preset user threshold, and the signal-to-noise ratio being less than a preset signal-to-noise ratio threshold.

11. The partial bandwidth switching method according to claim 10, characterized in that, Before receiving the restricted access information sent by the base station, the following is included: The user equipment sends a query instruction for the restricted access information to the base station. The query instruction is used to query the restricted access information of the user equipment's preset target bandwidth.

12. The partial bandwidth switching method according to claim 11, characterized in that, The step of determining the final target portion of bandwidth based on the restricted access information includes: When the preset target bandwidth is in an access-allowed state, the preset target bandwidth is the final target bandwidth; and When the preset target bandwidth is in a blocked access state, the target bandwidth is reset.

13. The partial bandwidth switching method according to claim 11, characterized in that, The restricted access information received from the base station includes: The user equipment sends a query instruction for target restricted access information to the base station. The target restricted access information is the restricted access information corresponding to the preset target portion of the bandwidth. The query instruction is Radio Resource Control (RRC) signaling.

14. The partial bandwidth switching method according to claim 10, characterized in that, The restricted access information received from the base station includes: The user equipment receives initial restricted access information sent by the base station, the initial restricted access information including public resource restricted access information and private resource restricted access information.

15. The partial bandwidth switching method according to claim 14, characterized in that, The restricted access information received from the base station includes: The user equipment sends a query command for the initial restricted access information to the base station, where the initial restricted access information is the restricted access information corresponding to the initial portion of the bandwidth.

16. The partial bandwidth switching method according to claim 14, characterized in that, The bandwidth switching method includes: When the public and private resources are in a restricted access state, the switching process for the user equipment to access the final target bandwidth is stopped.

17. The partial bandwidth switching method according to claim 14, characterized in that, The bandwidth switching method includes: When the public resources and the private resources are in a prohibited access state, the switching process for the user equipment to access the final target bandwidth is stopped, and the user equipment sends another query command to the base station to query the restricted access information of another preset target bandwidth of the user equipment.

18. The partial bandwidth switching method according to claim 14, characterized in that, The bandwidth switching method includes: When the public resource is in a restricted access state and the private resource is in a permitted access state, the user equipment's services are processed on the private resource.

19. The partial bandwidth switching method according to claim 14, characterized in that, The bandwidth switching method includes: When the initial public resource is in a prohibited access state, and the non-initial public resource and / or the proprietary resource is in the allowed access state, the user equipment's services are processed on the non-initial public resource.

20. The partial bandwidth switching method according to claim 10, characterized in that, The restricted access information defines each of the multiple partial bandwidths as either an allowed access state or a prohibited access state.

21. The partial bandwidth switching method according to claim 10, characterized in that, The restricted access information defines the allowed or prohibited access status of each of the multiple user equipment categories associated with the final target portion of the bandwidth.

22. The partial bandwidth switching method according to claim 10, characterized in that, The restricted access information defines each of the multiple user equipment access priorities as associated with the allowed or prohibited access status of the final target portion of the bandwidth, wherein the access priority includes at least the user equipment's access identity or access category.

23. The partial bandwidth switching method according to claim 10, characterized in that, The restricted access information sent by the base station is either Radio Resource Control (RRC) signaling or system information.

24. The partial bandwidth switching method according to claim 10, characterized in that, Before or during the process of initiating an active switch to the initial partial bandwidth, the user equipment sends a query instruction for the restricted access information to the base station. The query instruction is used to query the restricted access information of the user equipment's preset target partial bandwidth.

25. A computer-readable storage medium storing a computer program that causes a computer to perform the method of any one of claims 1 to 9.

26. A computer-readable storage medium storing a computer program that causes a computer to perform the method of any one of claims 10 to 24.

27. A user equipment, characterized in that, include: transceiver; as well as A processor, connected to a transceiver, is configured to perform the following steps, including: Report channel status information to the base station; The user equipment receives restricted access information sent by the base station, wherein the restricted access information is generated by the base station based on the access status of a portion of the bandwidth. If the channel state information meets a preset access prohibition condition, the portion of the bandwidth is set to an access prohibition state; and if the channel state information does not meet the access prohibition condition, the portion of the bandwidth is set to an access allow state. The final target portion bandwidth is determined based on the restricted access information, and the final target portion bandwidth is in an allowed access state based on the channel state information. The channel state information includes at least one or more of the following combinations: number of accessing users, signal-to-noise ratio, number of users in radio resource control connection state, noise floor, channel quality indication, reference signal reception quality, and reference signal reception power; The conditions for prohibiting access include at least the number of users accessing the system being greater than a preset user threshold, and the signal-to-noise ratio being less than a preset signal-to-noise ratio threshold.

28. The user equipment according to claim 27, characterized in that, Before receiving the restricted access information sent by the base station, the processor also performs the following steps, including: The user equipment sends a query instruction for the restricted access information to the base station. The query instruction is used to query the restricted access information of the user equipment's preset target bandwidth.

29. The user equipment according to claim 28, characterized in that, The processor also performs the following steps, including: When the preset target bandwidth is in an access-allowed state, the preset target bandwidth is the final target bandwidth; and When the preset target bandwidth is in a blocked access state, the target bandwidth is reset.

30. The user equipment according to claim 28, characterized in that, The processor also performs the following steps, including: The user equipment sends a query instruction for target restricted access information to the base station. The target restricted access information is the restricted access information corresponding to the preset target portion of the bandwidth. The query instruction is Radio Resource Control (RRC) signaling.

31. The user equipment according to claim 27, characterized in that, The processor also performs the following steps, including: The user equipment receives initial restricted access information sent by the base station, the initial restricted access information including public resource restricted access information and private resource restricted access information.

32. The user equipment according to claim 31, characterized in that, The processor also performs the following steps, including: The user equipment sends a query command for the initial restricted access information to the base station, where the initial restricted access information is the restricted access information corresponding to the initial portion of the bandwidth.

33. The user equipment according to claim 31, characterized in that, The processor also performs the following steps, including: When the public and private resources are in a restricted access state, the switching process for the user equipment to access the final target bandwidth is stopped.

34. The user equipment according to claim 31, characterized in that, The processor also performs the following steps, including: When the public resources and the private resources are in a prohibited access state, the switching process for the user equipment to access the final target bandwidth is stopped, and the user equipment sends another query command to the base station to query the restricted access information of another preset target bandwidth of the user equipment.

35. The user equipment according to claim 31, characterized in that, The processor also performs the following steps, including: When the public resource is in a restricted access state and the private resource is in a permitted access state, the user equipment's services are processed on the private resource.

36. The user equipment according to claim 31, characterized in that, The processor also performs the following steps, including: When the initial public resource is in a restricted access state, and the non-initial public resource and / or the proprietary resource is in a permitted access state, the user equipment's services are processed on the non-initial public resource.

37. The user equipment according to claim 27, characterized in that, The restricted access information defines each of the multiple partial bandwidths as either an allowed access state or a prohibited access state.

38. The user equipment according to claim 27, characterized in that, The restricted access information defines the allowed or prohibited access status of each of the multiple user equipment categories associated with the final target portion of the bandwidth.

39. The user equipment according to claim 27, characterized in that, The restricted access information defines each of the multiple user equipment access priorities as associated with the allowed or prohibited access status of the final target portion of the bandwidth, wherein the access priority includes at least the user equipment's access identity or access category.

40. The user equipment according to claim 27, characterized in that, The restricted access information sent by the base station is either Radio Resource Control (RRC) signaling or system information.

41. The user equipment according to claim 27, characterized in that, Before or during the process of initiating an active switch to the initial partial bandwidth, the user equipment sends a query instruction for the restricted access information to the base station. The query instruction is used to query the restricted access information of the user equipment's preset target partial bandwidth.

42. A base station, characterized in that, include: transceiver; as well as A processor, connected to a transceiver, is configured to perform the following steps, including: The base station determines the access status of a portion of the bandwidth and generates restricted access information based on the access status; and Send the restricted access information to the user equipment; The processor also performs the following steps, including: Obtain the channel state information of the aforementioned portion of the bandwidth; If the channel state information is determined to meet a preset access-prohibited condition, the portion of the bandwidth is set to an access-prohibited state; and If the channel state information does not meet the access prohibition condition, the portion of the bandwidth is set to the access allowment state. The channel state information includes at least one or more combinations of the following: the number of accessing users, signal-to-noise ratio, the number of users in radio resource control (RRR) connection state, noise floor, channel quality indication, reference signal reception quality, and reference signal reception power; and The conditions for prohibiting access include at least the number of users accessing the system being greater than a preset user threshold, and the signal-to-noise ratio being less than a preset signal-to-noise ratio threshold.

43. The base station according to claim 42, characterized in that, The processor also performs the following steps, including: Receive a query command for the restricted access information sent by the user equipment.

44. The base station according to claim 43, characterized in that, The processor also performs the following steps, including: The user equipment is classified, and 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 access priority, wherein the access priority includes at least the access identity or access category of the user equipment.

45. The base station according to claim 44, characterized in that, The processor also performs the following steps, including: The system receives a query instruction for target restricted access information sent by the user equipment, wherein the target restricted access information is the restricted access information corresponding to a portion of the target bandwidth.

46. ​​The base station according to claim 42, characterized in that, The processor also performs the following steps, including: Obtain resource status information for the initial portion of the bandwidth; If the resource status information is determined to meet the preset resource restriction conditions, the resource is set to a prohibited access state. If the resource status information does not meet the resource restriction conditions, the resource is set to an allowed access state; and The resources include public resources and proprietary resources.

47. The base station according to claim 46, characterized in that, The processor also performs the following steps, including: The system receives a query instruction for initial restricted access information sent by the user equipment, wherein the initial restricted access information is the restricted access information corresponding to the initial partial bandwidth.

48. The base station according to claim 46, characterized in that, The processor also performs the following steps, including: The public resources and the private resources are in the prohibited access state, and the initial portion of the bandwidth is set to the prohibited access state.

49. The base station according to claim 46, characterized in that, The processor also performs the following steps, including: When the public resource is in the prohibited access state and the private resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, allowing the user equipment's services to be processed on the private resource.

50. The base station according to claim 46, characterized in that, The processor also performs the following steps, including: When the initial public resource is in the prohibited access state, and the non-initial public resource and / or the proprietary resource is in the allowed access state, the initial partial bandwidth is set to the allowed access state, and the user equipment's services are processed on the non-initial public resource.

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