CN112996111B - BWP switching method and device - Google Patents

Abstract

The embodiment of the present application provides a BWP switching method and device. The UE determines the target BWP to be switched through the channel quality information corresponding to each BWP and the current traffic volume of the UE, and then sends a BWP switching request message to the network device to request the network The device switches the UE to the target BWP, and when the UE receives the BWP switching instruction sent by the network device, it can switch to the above-mentioned target BWP according to the BWP switching instruction. That is, in this embodiment of the application, the UE can actively select the BWP that needs to be switched according to the channel quality corresponding to each BWP and its own traffic volume, and report it to the network device, so that the network device can flexibly provide the UE with the actual needs according to the actual needs of the UE. Configuring BWP can effectively improve resource utilization and better cope with diversified application scenarios of UE.

Description

BWP switching method and equipment

technical field

The embodiment of the present application relates to the field of communication technologies, and in particular to a partial bandwidth (Bandwidth Bart, BWP for short) switching method and device.

Background technique

In the research process of the fifth-generation mobile communication technology (5th-Generation, 5G for short) New Radio (NR for short) system research process, for some user equipment (User Equipment, UE for short), due to limited capabilities, it does not It must be able to support all system bandwidth. In order to improve scheduling efficiency, the concept of BWP is introduced into the 5G NR system.

In the existing technology, in the radio resource control (Radio Resource Control, referred to as RRC) connection state, the network device can configure one or more BWPs for the UE, and then send the relevant switching information to the UE, and the UE switches according to the received switching information. to the corresponding BWP.

However, the BWP switching mechanism in the above-mentioned prior art is not flexible enough for switching bandwidth resources, and there may be a phenomenon that the BWP configured by the network device does not match the channel quality or working status of the UE, and the resource utilization rate is low, so it cannot handle Technical issues of UE's diverse application scenarios.

Contents of the invention

The embodiments of the present application provide a BWP switching method and device, which can solve the technical problem that the resource utilization rate of the BWP switching mechanism in the prior art is low and cannot cope with diversified application scenarios of the UE.

In the first aspect, the embodiment of the present application provides a BWP handover method, which is applied to the UE, and the method includes:

Measuring channel quality information corresponding to each BWP configured for the UE, and determining a target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic volume of the UE;

Sending a BWP switching request message to the network device, where the BWP switching request message includes the identification information of the target BWP;

receiving a BWP switching instruction sent by the network device, and switching to the target BWP according to the BWP switching instruction.

In a possible design manner, the measuring the channel quality information corresponding to each partial bandwidth BWP configured by the UE includes:

Based on the channel state information reference signal (Channel State Information Reference Signal, CSI-RS) of the serving cell where the UE is located, determine the channel quality information corresponding to each BWP.

In a possible design manner, the determining the target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic volume of the UE includes:

According to the channel quality information corresponding to each BWP, determine a candidate BWP whose channel quality is greater than a preset quality threshold in each BWP;

The target BWP is determined in each of the candidate BWPs according to the bandwidth corresponding to each of the candidate BWPs and the current traffic volume of the UE.

In a possible design manner, the determining the target BWP in each of the candidate BWPs according to the bandwidth corresponding to each of the candidate BWPs and the current traffic volume of the UE includes:

According to the current traffic volume of the UE, determine the minimum bandwidth of the BWP currently required by the UE;

A candidate BWP whose bandwidth is greater than the minimum bandwidth and whose difference with the minimum bandwidth is the smallest among each of the candidate BWPs is determined as the target BWP.

In the second aspect, the embodiment of the present application provides a BWP switching method, which is applied to a network device, and the method includes:

receiving a BWP switching request message sent by the UE, where the BWP switching request message includes identification information of a target BWP, and the target BWP is one of multiple BWPs configured by the UE;

Sending a BWP switching instruction to the UE according to the identification information of the target BWP, where the BWP switching instruction is used to instruct the UE to switch to the target BWP.

In a possible design manner, the sending the BWP switching instruction to the UE includes:

Sending a radio resource control (Radio Resource Control, RRC for short) message or downlink control information (Downlink Control Information, DCI for short) to the UE, where the RRC message or the DCI includes the BWP switching instruction.

In a third aspect, an embodiment of the present application provides a BWP switching device, which is applied to a UE, and the device includes:

A measurement module, configured to measure channel quality information corresponding to each BWP configured for the UE, and determine a target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic volume of the UE;

A sending module, configured to send a BWP switching request message to a network device, where the BWP switching request message includes identification information of the target BWP;

A control module, configured to receive a BWP switching instruction sent by the network device, and switch to the target BWP according to the BWP switching instruction.

In the fourth aspect, the embodiment of the present application provides a BWP switching device, which is applied to network equipment, and the device includes:

A receiving module, configured to receive a BWP switching request message sent by the UE, where the BWP switching request message includes identification information of a target BWP, and the target BWP is one of multiple BWPs configured by the UE;

A control module, configured to send a BWP switching instruction to the UE according to the identification information of the target BWP, where the BWP switching instruction is used to instruct the UE to switch to the target BWP.

In a fifth aspect, the embodiment of the present application provides a user equipment, including: at least one processor and a memory;

the memory stores computer-executable instructions;

The at least one processor executes the computer-executed instructions stored in the memory, so that the at least one processor executes the BWP switching method provided in the first aspect.

In a sixth aspect, the embodiment of the present application provides a network device, including: at least one processor and a memory;

the memory stores computer-executable instructions;

The at least one processor executes the computer-executed instructions stored in the memory, so that the at least one processor executes the BWP switching method provided in the second aspect.

In the seventh aspect, the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and when the processor executes the computer-executable instructions, the BWP as provided in the first aspect is realized. switching method;

Or, when the processor executes the computer-executed instruction, the BWP switching method provided in the second aspect is implemented.

In the eighth aspect, the embodiment of the present application provides a computer program product, including a computer program. When the computer program is executed by a processor, it implements the BWP switching method as provided in the first aspect, or implements the BWP as provided in the second aspect. switching method.

In the BWP switching method provided in the embodiment of the present application, the UE determines the target BWP to be switched through the channel quality information corresponding to each BWP and the current traffic volume of the UE, and then sends a BWP switching request message to the network device to request the network device The UE is switched to the target BWP, and when the UE receives the BWP switching instruction sent by the network device, it can switch to the above-mentioned target BWP according to the BWP switching instruction. That is, in this embodiment of the application, the UE can actively select the BWP that needs to be switched according to the channel quality corresponding to each BWP and its own traffic volume, and report it to the network device, so that the network device can flexibly provide the UE with the actual needs according to the actual needs of the UE. Configuring BWP can effectively improve resource utilization and better cope with diversified application scenarios of UE.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present application or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a wireless communication system provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of adaptively adjusting UE bandwidth provided in an embodiment of the present application;

FIG. 3 is a schematic flowchart of a BWP switching method provided in an embodiment of the present application;

FIG. 4 is a schematic flowchart of another BWP switching method provided in the embodiment of the present application;

FIG. 5 is a schematic diagram of signaling interaction of a BWP handover method provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of a program module of a BWP switching device provided in an embodiment of the present application;

FIG. 7 is a schematic diagram of program modules of another BWP switching device provided in the embodiment of the present application;

FIG. 8 is a schematic diagram of a hardware structure of an electronic device provided in an embodiment of the present application.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The embodiment of the present application can be applied to various communication systems, such as: Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on the license-free spectrum, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks, WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), next generation communication system or other communication systems, etc.

Generally speaking, the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, device-to-device (D2D ) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (MachineType Communication, MTC), and vehicle-to-vehicle (Vehicle to Vehicle, V2V) communication, etc., the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (CarrierAggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) network deployment Scenes.

The embodiment of the present application does not limit the applied frequency spectrum. For example, the embodiments of the present application may be applied to licensed spectrum, and may also be applied to unlicensed spectrum.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of a wireless communication system provided by an embodiment of the present application. The wireless communication system provided in this embodiment includes a UE 101 and a network device 102 .

Optionally, UE101 may refer to various forms of user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS for short), remote station, remote terminal, mobile device, terminal device ( terminalequipment), wireless communication equipment, user agent or user device. It can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP for short) phone, a Wireless Local Loop (WLL for short) station, a personal digital assistant (PDA for short), a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the future 5G network or terminals in the future evolution of the Public Land Mobile Network (PLMN) The device and the like are not limited in this embodiment of the present application, as long as the UE 101 can communicate with the network device 102 wirelessly.

Optionally, the network device 102 is a public mobile communication network device, which is an interface device for UE101 to access the Internet, and is also a form of radio station, which refers to information transfer between UE101 and UE101 in a certain radio coverage area. Radio transceiver stations, including base stations (Base Station, BS for short), also known as base station equipment, are devices deployed on a radio access network (Radio Access Network, RAN) to provide wireless communication functions. For example, the equipment that provides base station functions in the 2G network includes Base Transceiver Station (BTS for short), the equipment that provides base station functions in the 3G network includes Node B (NodeB), and the equipment that provides base station functions in the 4G network includes Evolution The Node B (evolved NodeB, eNB), in the wireless local area network (Wireless Local Area Networks, referred to as WLAN), the device that provides the function of the base station is the access point (Access Point, referred to as the AP), and the device that provides the function of the base station in 5G NR The device gNB, and the node B (ng-eNB) that continues to evolve, in which gNB and UE use NR technology for communication, and between ng-eNB and UE use Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial RadioAccess, referred to as E-UTRA) technology for communication, both gNB and ng-eNB can be connected to the 5G core network. The network device 102 in this embodiment of the present application also includes devices that provide base station functions in future new communication systems, and the like.

It can be understood that BWP is a subset bandwidth of the total bandwidth of the serving cell, which flexibly adjusts the size of UE receiving and transmitting bandwidth through bandwidth adaptation in NR, so that UE receiving and transmitting bandwidth does not need to be as large as the bandwidth of the cell, for example : (1) When the UE is in a low activity period, the gNB can indicate to reduce the bandwidth (BWP) of the UE through high-level signaling or DCI, which can save the power of the UE at this time; (2) The position of the BWP indicated by the gNB can be moved in the frequency domain, Therefore, the flexibility of scheduling is increased; (3) gNB can instruct UE to change subcarrier spacing, so different services can be allowed.

Each BWP consists of a continuous physical resource block (PRB), the corresponding bandwidth, frequency domain starting position, sub-carrier spacing (Sub-Channel Spacing, referred to as SCS) and cyclic prefix (Cyclic Prefix, The length of CP for short can be flexibly configured. The standard defines that BWP has an uplink/downlink distinction, and uplink/downlink can be configured with different parameters according to requirements. According to different applicable scenarios, BWP can be roughly divided into two categories: one is the initial activation BWP, which is used for the initial access phase of the UE and the UE is in the RRC idle state; the other is the BWP configured in the RRC connection state, which is used for the UE in the RRC connection state. The UE obtains the relevant information of the uplink/downlink initial activation BWP by reading the remaining minimum system information (Remaining Minimum System Information, referred to as RMSI) of the cell, and the downlink initial activation BWP is used to transmit the system information block (System information block, referred to as SIB) information, seek Call message, Msg2/4 of random access, etc.; uplink initial activation BWP is used to transmit uplink information of random access.

For the BWP configured in the RRC connection state, the network device can configure different BWPs for different UEs (each UE can configure up to four uplink/downlink), and the relevant configuration information of BWP is notified to the UE through the RRC signaling issued by the network. Although the network Multiple BWPs can be configured for each UE, but the 3GPP Rel-15 protocol stipulates that only one BWP can be activated for uplink/downlink at the same time. In addition to the activated downlink BWP, the UE no longer receives PDSCH (Physical Downlink Shared Channel, physical Downlink shared channel), PDCCH (Physical Downlink Control Channel, physical downlink control channel) or CSI-RS; outside the activated uplink BWP, UE will not send PUCCH (Physical Uplink Control Channel, physical uplink control channel) and PUSCH (Physical Uplink Shared Channel, physical uplink shared channel). In the connected state, if the UE is configured with multiple BWPs, the UE performs BWP switching by parsing the DCI indication in the PDCCH or when the BWP-Inactivity Timer (bwp-Inactivity Timer) expires. The deactivation timer is used to switch the currently activated BWP to the default BWP. When the PDCCH is successfully received on the activated BWP, the timer will be restarted. If the timer expires, the UE will switch to the default BWP.

In order to better understand the embodiment of the present application, refer to FIG. 2 , which is a schematic diagram of adaptively adjusting the bandwidth of the UE provided in the embodiment of the present application.

In Figure 2, at the first moment, the traffic volume of the UE is large, and the network device configures a large bandwidth (BWP1) for the UE; at the second moment, the traffic volume of the UE is small, and the network device configures a small bandwidth for the UE (BWP2), it is enough to meet the basic communication requirements; at the third moment, the network device finds that there is a wide range of frequency selective fading in the bandwidth where BWP1 is located, or the resources in the frequency range where BWP1 is located are relatively scarce, so a new bandwidth is configured for the UE (BWP3).

In the existing BWP-related mechanism of 5G NR, for the initial access BWP and RRC connection state BWP, both the relevant configuration information and the activation/deactivation process are determined by the network device and indicated to the UE, including: each up/down Downlink BWP bandwidth, frequency domain starting position, SCS, CP length, deactivation timer duration, default BWP, and BWP activated in connection state, etc. Although the 3GPP specification defines that the network can flexibly configure different BWPs for each UE, such configuration flexibility may increase the complexity of base station processing and scheduling for the network, so the network may only configure different BWPs for special users (such as , small bandwidth terminals or special industry terminals) configure BWP individually, and adopt the same BWP configuration for a large number of ordinary users in the network. In this way, it is very likely that the BWP configured/activated by the network does not match the actual channel quality or UE status.

For example, when the UE enters the RRC connection state, the network first needs to send the corresponding BWP configuration set to the UE through the RRC reconfiguration message. One of the BWPs is activated; in the subsequent data transmission scheduling process, BWP switching can be performed through DCI signaling, that is, other BWPs in the set are activated and the current BWP is deactivated by default. As the wireless UE moves, the channel state of the UE is constantly changing. For example, channel changes such as frequency selective fading may cause a mismatch between the network configuration and the activated BWP and the UE channel state, thus affecting the UE on/off Demodulation performance and user experience of downlink data.

In order to solve the above technical problems, the embodiment of the present application provides a BWP switching method. The UE can perform channel estimation and evaluation channel quality through CSI-RS, and then actively select according to the channel quality corresponding to each BWP and its own traffic. The BWP that needs to be switched is reported to the network device, so that the network device can flexibly configure BWP for the UE according to the actual needs of the UE, thereby effectively improving resource utilization and downlink data transmission performance, and better responding to the diverse application scenarios of the UE . Please refer to the following examples of this application for details:

Referring to FIG. 3 , FIG. 3 is a schematic flowchart of a BWP handover method provided by an embodiment of the present application, and the execution subject of this embodiment is the UE in the embodiment shown in FIG. 1 . As shown in Figure 3, the method includes:

S301. Measure channel quality information corresponding to each BWP configured for the UE, and determine a target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic volume of the UE.

In a feasible implementation manner of this application, the network device can configure multiple BWPs for a UE, and the network device can configure the UE to perform measurements for these multiple BWPs. The BWP performs measurement to determine the channel quality information corresponding to each BWP.

Optionally, the above channel quality information can be used to measure the communication capability of each BWP. For example, the channel quality information can include: RSRP (Reference Signal Receiving Power, reference signal receiving power), RSRQ (Reference Signal Receiving Quality, reference signal receiving Quality), CQI (Channel Quality Indicator, channel quality indication), SINR (Signal to Interference plus Noise Ratio, signal to interference plus noise ratio), RSSI (Received Signal Strength Indication, received signal strength indication), channel occupancy rate and other information.

In this embodiment of the application, after the UE determines the channel quality information corresponding to each BWP, according to the channel quality information corresponding to each BWP and the current traffic volume of the UE, select a BWP most suitable for the UE from the above-mentioned BWPs as the target BWP.

Exemplarily, assuming that the UE is currently configured with two BWPs, where one BWP has a larger bandwidth and the other BWP has a smaller bandwidth, then after the UE measures the above two BWPs, it assumes that the channel quality of the above two BWPs If both can meet the service requirements of the UE, when the service volume of the UE is large, the UE selects a BWP with a large bandwidth as the target BWP; and when the service volume of the UE is small, the UE selects a BWP with a small bandwidth as the target BWP.

S302. Send a BWP switching request message to the network device, where the BWP switching request message includes the identification information of the target BWP.

In the embodiment of the present application, after determining the target BWP, the UE can send a BWP switching request message to the network device, requesting the network device to switch the UE to the target BWP.

S303. Receive a BWP switching instruction sent by the network device, and switch to a target BWP according to the BWP switching instruction.

In the embodiment of the present application, after receiving the BWP switching request message sent by the UE, the network device parses the identification information of the target BWP contained in the BWP switching request message, and if the target BWP meets the BWP switching condition, then according to the target BWP Identification information, sending a BWP switching instruction to the UE, instructing the UE to switch to the target BWP.

That is to say, in the BWP switching method provided by the embodiment of this application, the UE can actively select the BWP to be switched according to the channel quality corresponding to each BWP and its own traffic volume and report it to the network device, so that the network device can flexibly base on the actual situation of the UE. It is necessary to configure BWP for UE, so as to effectively improve resource utilization and better cope with diversified application scenarios of UE.

Based on the content described in the above embodiments, in a feasible implementation manner of the present application, the UE may determine the channel quality information corresponding to each BWP based on the CSI-RS or TRS of the serving cell.

Among them, in NR, CSI-RS is usually used to detect downlink channels and beam management, and CSI-RS can be configured as 32 antenna ports, which means that UE can detect 32 spatial channel conditions. The phase reference signal (tracking reference signal, TRS for short) is a multi-period CSI-RS, and the UE can also estimate frequency and time errors according to the TRS.

Based on the content described in the above embodiments, in a feasible implementation manner of the present application, when the UE determines the target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic volume of the UE, it may first determine the target BWP according to each BWP The channel quality information corresponding to the BWP determines the candidate BWP whose channel quality is greater than the preset quality threshold in each BWP, and then determines the target BWP in each candidate BWP according to the bandwidth corresponding to each candidate BWP and the current traffic volume of the UE.

For example, according to the current traffic of the UE, determine the minimum bandwidth of the BWP currently required by the UE; among the above candidate BWPs, the candidate BWP whose bandwidth is greater than the minimum bandwidth and has the smallest difference with the minimum bandwidth is determined as the target BWP.

Or, in another feasible implementation manner of the present application, the UE first determines the minimum bandwidth of the BWP currently required by the UE according to the current traffic volume, and then selects the BWP whose bandwidth is greater than the minimum bandwidth and has the best channel quality among the above-mentioned BWPs. The BWP is determined as the target BWP.

That is, in the embodiment of the present application, the UE can actively select the BWP that needs to be switched according to the channel quality corresponding to each BWP and its own traffic, so as to better cope with the diversified application scenarios of the UE.

Based on the content described in the above embodiments, a BWP switching method is also provided in the embodiment of the present application. Referring to FIG. 4, FIG. 4 is a schematic flowchart of another BWP switching method provided in the embodiment of the present application. The execution subject of the example is the network device in the embodiment shown in Figure 1, as shown in Figure 4, the method includes:

S401. Receive a BWP switching request message sent by a UE, where the BWP switching request message includes identification information of a target BWP, and the target BWP is one of multiple BWPs configured by the UE.

S402. Send a BWP switching instruction to the UE according to the identification information of the target BWP, where the BWP switching instruction is used to instruct the UE to switch to the target BWP.

In the embodiment of the present application, after receiving the BWP switching request message sent by the UE, the network device parses the identification information of the target BWP contained in the BWP switching request message, and sends a BWP switching instruction to the UE according to the identification information of the target BWP , instructing the UE to switch to the target BWP.

That is, in the BWP switching method provided in the embodiment of this application, the network device can receive the BWP switching request message sent by the UE, and configure the BWP for the UE according to the BWP actively selected by the UE, so as to effectively improve resource utilization and better deal with Various application scenarios of UE.

In order to better understand the embodiment of the present application, refer to FIG. 5, which is a schematic diagram of signaling interaction of a BWP switching method provided in the embodiment of the present application. As shown in FIG. 5, the method includes:

501. The UE measures channel quality information corresponding to each BWP configured for the UE.

502. The UE determines the target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current service volume of the UE.

503. The UE sends a BWP switching request message to the network device, and the BWP switching request message includes the identification information of the target BWP.

504. The network device sends a BWP switching instruction to the UE.

505. The UE switches to the target BWP.

In the BWP switching method provided in the embodiment of the present application, the UE can actively select the BWP to be switched according to the channel quality corresponding to each BWP and its own traffic volume and report it to the network device, so that the network device can flexibly base on the actual situation of the UE. It is necessary to configure BWP for UE, so as to effectively improve resource utilization and better cope with diversified application scenarios of UE.

Based on the content described in the foregoing embodiments, the embodiments of the present application further provide a BWP switching apparatus, which is applied to user equipment. Referring to FIG. 6, FIG. 6 is a schematic diagram of a program module of a BWP switching device provided in an embodiment of the present application. The BWP switching device 60 includes:

The measurement module 601 is configured to measure channel quality information corresponding to each BWP configured for the UE, and determine a target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic volume of the UE.

The sending module 602 is configured to send a BWP switching request message to the network device, where the BWP switching request message includes the identification information of the target BWP.

The control module 603 is configured to receive the BWP switching instruction sent by the network device, and switch to the target BWP according to the BWP switching instruction.

That is, the BWP switching device 60 provided in the embodiment of the present application allows the UE to actively select the BWP that needs to be switched and report it to the network device according to the channel quality corresponding to each BWP and its own traffic volume, so that the network device can flexibly according to the UE Configure BWP for the UE according to the actual needs, so as to effectively improve the resource utilization rate and better cope with the diversified application scenarios of the UE.

In a feasible implementation manner, the measurement module 601 is used for:

Based on the CSI-RS of the serving cell where the UE is located, the channel quality information corresponding to each BWP is determined.

In a feasible implementation manner, the measurement module 601 is used for:

According to the channel quality information corresponding to each BWP, determine the candidate BWP whose channel quality is greater than the preset quality threshold in each BWP; according to the bandwidth corresponding to each candidate BWP and the current traffic volume of the UE, determine the target BWP among each candidate BWP.

Optionally, according to the current traffic volume of the UE, determine the minimum bandwidth of the BWP currently required by the UE; determine the candidate BWP whose bandwidth is greater than the minimum bandwidth and has the smallest difference with the minimum bandwidth among each candidate BWP as the target BWP.

It should be noted that the specific execution content of the measurement module 601, the sending module 602, and the control module 603 in the embodiment of the present application is related to each step in the BWP switching method described in the embodiment shown in FIG. 3 . For details, please refer to the above The content described in the embodiment will not be repeated here.

Based on the content described in the foregoing embodiments, another BWP switching apparatus is provided in the embodiments of the present application, which is applied to network devices. Referring to FIG. 7, FIG. 7 is a schematic diagram of program modules of another BWP switching device provided in the embodiment of the present application. The BWP switching device 70 includes:

The receiving module 701 is configured to receive a BWP switching request message sent by the UE, where the BWP switching request message includes identification information of a target BWP, and the target BWP is one of multiple BWPs configured by the UE.

The control module 702 is configured to send a BWP switching instruction to the UE according to the identification information of the target BWP, where the BWP switching instruction is used to instruct the UE to switch to the target BWP.

It should be noted that the content specifically executed by the receiving module 701 and the control module 702 in the embodiment of the present application is related to each step in the BWP switching method described in the embodiment shown in FIG. content, which will not be repeated here.

That is, the BWP switching device 70 provided in the embodiment of the present application, the network device can receive the BWP switching request message sent by the UE, and configure the BWP for the UE according to the BWP actively selected by the UE, so as to effectively improve resource utilization and better To cope with the diverse application scenarios of UE.

Further, based on the content described in the above-mentioned embodiments, the embodiments of the present application also provide a user equipment, the user equipment includes at least one processor and a memory; wherein, the memory stores computer-executable instructions; the above-mentioned at least one processor Execute the computer-executed instructions stored in the memory to implement the steps performed by the user equipment side in the above-mentioned embodiments, which will not be described again in this embodiment.

Further, based on the content described in the above-mentioned embodiments, the embodiments of the present application also provide a network device, the network device includes at least one processor and a memory; wherein, the memory stores computer-executable instructions; the above-mentioned at least one processor Execute the computer-executable instructions stored in the memory to implement the steps performed by the network device side in the above-mentioned embodiments, which will not be repeated here in this embodiment.

In order to better understand the embodiment of the present application, refer to FIG. 8 , which is a schematic diagram of a hardware structure of an electronic device provided in the embodiment of the present application. The electronic device may be the above-mentioned user equipment, or may be the above-mentioned network device.

As shown in FIG. 8, the electronic device 80 of this embodiment includes: a processor 801 and a memory 802; wherein:

memory 802, for storing computer-executable instructions;

The processor 801 is configured to execute the computer-executable instructions stored in the memory, so as to implement the steps performed by the user equipment in the foregoing embodiments, and for details, refer to the relevant descriptions in the foregoing method embodiments.

Alternatively, the processor 801 is configured to execute the computer-executed instructions stored in the memory, so as to implement the various steps performed by the network device in the foregoing embodiments, and for details, refer to relevant descriptions in the foregoing method embodiments.

Optionally, the memory 802 can be independent or integrated with the processor 801 .

When the memory 802 is set independently, the device further includes a bus 803 for connecting the memory 802 and the processor 801 .

Further, based on the content described in the above embodiments, the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and when the processor executes the computer-executable instructions, so as to implement the steps performed by the user equipment side in the foregoing embodiments.

Further, based on the content described in the above embodiments, the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and when the processor executes the computer-executable Instructions are used to implement the steps performed by the network device side in the foregoing embodiments.

Further, based on the content described in the above-mentioned embodiments, the embodiments of the present application also provide a computer program product, including a computer program. When the computer program is executed by a processor, the user equipment side execution in the above-mentioned embodiments can be implemented. or implement the steps performed by the network device side in the foregoing embodiments.

It should be understood that, in the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods, for example, multiple modules can be combined or integrated. to another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing unit, each module may exist separately physically, or two or more modules may be integrated into one unit. The units formed by the above modules can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The above-mentioned software functional modules are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) or a processor (English: processor) to execute the functions described in various embodiments of the present application. part of the method.

It should be understood that the above-mentioned processor can be a central processing unit (English: Central Processing Unit, referred to as: CPU), and can also be other general-purpose processors, digital signal processors (English: Digital Signal Processor, referred to as: DSP), application-specific integrated circuits (English: Application Specific Integrated Circuit, referred to as: ASIC), etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in conjunction with the application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

The storage may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage, and may also be a U disk, a mobile hard disk, a read-only memory, a magnetic disk, or an optical disk.

The bus can be an Industry Standard Architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, the buses in the drawings of the present application are not limited to only one bus or one type of bus.

The above-mentioned storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable In addition to programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be located in Application Specific Integrated Circuits (ASIC for short). Of course, the processor and the storage medium can also exist in the electronic device or the main control device as discrete components.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit it; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present application. scope.

Claims (8)

1. A BWP handover method, applied to a User Equipment (UE), the method comprising:

measuring channel quality information corresponding to each part bandwidth BWP configured for the UE, and determining a target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic of the UE;

sending a BWP handover request message to a network device, wherein the BWP handover request message comprises the identification information of the target BWP;

receiving a BWP switching instruction sent by the network equipment, and switching to the target BWP according to the BWP switching instruction;

the measuring channel quality information corresponding to each partial bandwidth BWP configured by the UE includes:

determining channel quality information corresponding to each BWP based on a channel state information reference signal (CSI-RS) of a serving cell where the UE is located;

determining a target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and the current traffic of the UE, including:

determining candidate BWPs with channel quality larger than a preset quality threshold in each BWP according to the channel quality information corresponding to each BWP;

and determining the target BWP in each candidate BWP according to the bandwidth corresponding to each candidate BWP and the current traffic of the UE.

2. The method of claim 1, wherein the determining the target BWP in each of the candidate BWPs according to the bandwidth corresponding to each of the candidate BWPs and the current traffic volume of the UE comprises:

determining the minimum bandwidth of BWP currently required by the UE according to the current traffic of the UE;

and determining the candidate BWP with bandwidth larger than the minimum bandwidth and the smallest difference with the minimum bandwidth in each candidate BWP as the target BWP.

3. A switching method of BWP, applied to a network device, the method comprising:

receiving a partial bandwidth BWP handover request message sent by User Equipment (UE), wherein the BWP handover request message comprises identification information of a target BWP, and the target BWP is one of a plurality of BWPs configured by the UE; the target BWP is a candidate BWP of which the channel quality is greater than a preset quality threshold in each BWP determined by the UE according to the channel quality information corresponding to each BWP; determining in each candidate BWP according to the bandwidth corresponding to each candidate BWP and the current traffic of the UE;

sending a BWP handover instruction to the UE according to the identification information of the target BWP, wherein the BWP handover instruction is used for indicating the UE to handover to the target BWP;

the sending the BWP handover command to the UE includes:

and sending a Radio Resource Control (RRC) message or Downlink Control Information (DCI) to the UE, wherein the RRC message or the DCI comprises the BWP switching instruction.

4. A switching apparatus of BWP, applied to a User Equipment (UE), the apparatus comprising:

a measuring module, configured to measure channel quality information corresponding to each partial bandwidth BWP configured for the UE, and determine a target BWP corresponding to the UE according to the channel quality information corresponding to each BWP and a current traffic volume of the UE;

a sending module, configured to send a BWP handover request message to a network device, where the BWP handover request message includes identification information of the target BWP;

the control module is used for receiving a BWP switching instruction sent by the network device and switching to the target BWP according to the BWP switching instruction;

the measurement module is specifically configured to determine channel quality information corresponding to each BWP based on a channel state information reference signal CSI-RS of a serving cell in which the UE is located;

determining candidate BWPs of which the channel quality is greater than a preset quality threshold in each BWP according to the channel quality information corresponding to each BWP;

and determining the target BWP in each candidate BWP according to the bandwidth corresponding to each candidate BWP and the current traffic of the UE.

5. A switching apparatus of BWP, applied to a network device, the apparatus comprising:

a receiving module, configured to receive a BWP handover request message sent by a user equipment UE, where the BWP handover request message includes identification information of a target BWP, and the target BWP is one of BWPs configured by the UE; the target BWP is a candidate BWP of which the channel quality is greater than a preset quality threshold in each BWP determined by the UE according to the channel quality information corresponding to each BWP; determining in each candidate BWP according to the bandwidth corresponding to each candidate BWP and the current traffic of the UE;

a control module, configured to send a BWP handover instruction to the UE according to the identification information of the target BWP, where the BWP handover instruction is used to instruct the UE to handover to the target BWP;

the receiving module is specifically configured to send a radio resource control RRC message or downlink control information DCI to the UE, where the RRC message or the DCI includes the BWP switching instruction.

6. A user device, comprising: at least one processor and a memory;

the memory stores computer execution instructions;

the at least one processor executing the memory-stored computer-executable instructions cause the at least one processor to perform the BWP handoff method of any one of claims 1-2.

7. A network device, comprising: at least one processor and a memory;

the memory stores computer-executable instructions;

the at least one processor executing the memory-stored computer-executable instructions cause the at least one processor to perform the BWP handoff method of claim 3.

8. A computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, implement the BWP switching method according to any one of claims 1-2;

or, when the computer executes the instructions, a processor implements the BWP switching method of claim 3.

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