CN110545562B

CN110545562B - BWP switching method and device, storage medium, user equipment and base station

Info

Publication number: CN110545562B
Application number: CN201810533884.5A
Authority: CN
Inventors: 邓云
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2018-05-29
Filing date: 2018-05-29
Publication date: 2021-07-09
Anticipated expiration: 2038-05-29
Also published as: CN110545562A

Abstract

A BWP switching method and device, storage medium, user equipment and base station, the BWP switching method includes: receiving first configuration information sent by a network, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP; measuring the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP; judging whether the channel state information of the inactive BWP meets a reporting condition; and if the judgment result shows that the channel state information meets the reporting condition, sending the BWP identification of the inactive BWP to the network for the network to switch the BWP. By the technical scheme provided by the invention, when the BWP is switched by the network, the throughput rate of the user equipment can be ensured not to generate large fluctuation, good spectrum efficiency can be obtained, and the user satisfaction is improved.

Description

BWP switching method and device, storage medium, user equipment and base station

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a BWP handover method and apparatus, a storage medium, a user equipment, and a base station.

Background

In a New Radio (NR, also referred to as a New air interface) technology of The Fifth-Generation mobile communications (5G for short), a cell bandwidth may be very large, which may be 400MHz at most, and far exceeds a cell bandwidth of 20MHz in an existing Long Term Evolution (LTE) technology. If all User Equipments (UEs) directly access the 400MHz bandwidth when accessing the network, not only high manufacturing cost of the UEs is caused, but also large power consumption is caused. Therefore, a new concept of "Bandwidth Part (BWP)" is introduced in 5G to allow NR UEs to access the 5G system using narrowband BWP and transmit traffic using broadband BWP. Therefore, after the UE accesses the network, the network can configure a plurality of BWPs.

Specifically, one cell (e.g., PCell cell) in a 5G system may include multiple BWPs, each BWP occupying a limited bandwidth, and at least one BWP allowing idle-state UEs to camp on. The idle UE may receive network information such as system messages and paging messages from the BWP, initiate random access through the BWP, establish Radio Resource Control (RRC) connection, change from the idle state to the connected state, and further establish a data Radio bearer. This BWP is referred to as the initial BWP for the UE. After the UE accesses the network, the network may configure other BWPs for the UE according to the UE capabilities, service requirements, and the like.

Release 15(Release 15) of the 3rd Generation Partnership Project (3 GPP) Release specifies that a UE can only have one active BWP in one serving cell. In the prior art, the UE only measures and reports the channel state information for activating BWP, so when the network switches BWP, it is only able to switch to other BWP randomly, the scheduling of the UE is a blind purpose, it is difficult to obtain good spectrum efficiency, and the throughput of the UE may be decreased sharply.

Disclosure of Invention

The technical problem solved by the invention is how to switch BWP in the switching process of BWP to ensure that the throughput rate of UE does not generate large fluctuation and obtain high spectral efficiency to improve the user experience.

To solve the foregoing technical problem, an embodiment of the present invention provides a BWP switching method, where the BWP switching method includes: receiving first configuration information sent by a network, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP; measuring the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP; judging whether the channel state information of the inactive BWP meets a reporting condition; and if the judgment result shows that the channel state information meets the reporting condition, sending the BWP identification of the inactive BWP to the network for the network to switch the BWP.

Optionally, the measuring the inactive BWP according to the measurement information includes: and measuring the inactive BWP by using the measurement resources left after the measurement of the active BWP according to the measurement information.

Optionally, the determining whether the channel state information of the inactive BWP meets the reporting condition includes: judging whether the channel quality indicated value of the non-activated BWP is higher than the channel quality indicated value of the activated BWP of the same serving cell; or, judging whether the channel quality indication value of the inactive BWP is higher than a preset channel quality indication threshold.

Optionally, the BWP switching method further includes: and when the BWP identification of the inactive BWP is sent, sending the channel state information associated with the BWP identification together.

Optionally, the BWP switching method further includes: and receiving second configuration information of switching activation BWP sent by the network.

Optionally, the first configuration information is sent by the network through RRC signaling or MAC layer control signaling.

Optionally, the measurement information includes one or more of the following: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported.

To solve the foregoing technical problem, an embodiment of the present invention further provides a BWP switching method, where the BWP switching method includes: sending first configuration information to a user equipment, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP (broadband access point), so that the user equipment measures the inactive BWP according to the measurement information; receiving a BWP identification of the inactive BWP sent by the user equipment to switch BWP.

Optionally, the BWP switching method further includes: and when receiving the BWP identification sent by the user equipment, receiving the channel state information associated with the BWP identification.

Optionally, the BWP switching method further includes: transmitting second configuration information for handover activation BWP to the user equipment.

Optionally, the first configuration information is sent through RRC signaling or MAC layer control signaling.

To solve the above technical problem, an embodiment of the present invention further provides a BWP switching device, including: a first receiving module, adapted to receive first configuration information sent by a network, where the first configuration information is used to indicate measurement information for measuring an inactive BWP; a measurement module adapted to measure the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP; a judging module, adapted to judge whether the channel state information of the inactive BWP satisfies a reporting condition; and a first sending module, adapted to send the BWP id of the inactive BWP to the network for the network to switch BWP if the determination result indicates that the channel state information satisfies the reporting condition.

Optionally, the measurement module includes: a measurement sub-module adapted to measure the inactive BWP using measurement resources remaining after BWP activation according to the measurement information.

Optionally, the determining module includes: a first judging sub-module adapted to judge whether the channel quality indication value of the inactive BWP is higher than the channel quality indication value of the active BWP of the same serving cell; or, the second determining sub-module is adapted to determine whether the channel quality indication value of the inactive BWP is higher than a channel quality indication preset threshold.

Optionally, the BWP switching device further includes: and a second sending module, adapted to send the BWP id of the inactive BWP together with the channel state information associated with the BWP id.

Optionally, the BWP switching device further includes: a second receiving module, adapted to receive second configuration information of the handover activation BWP sent by the network.

Optionally, the measurement configuration information includes one or more of the following: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported.

To solve the above technical problem, an embodiment of the present invention further provides a BWP switching device, including: a third sending module, adapted to send first configuration information to a user equipment, where the first configuration information is used to indicate measurement information for measuring an inactive BWP, so that the user equipment measures the inactive BWP according to the measurement information; a third receiving module, adapted to receive the BWP identification of the inactive BWP sent by the user equipment, so as to switch BWP.

Optionally, the BWP switching device further includes: a fourth receiving module, adapted to receive the BWP id sent by the user equipment, and receive the channel state information associated with the BWP id.

Optionally, the BWP switching device further includes: a fourth sending module adapted to send second configuration information for handover activation, BWP, to the user equipment.

Optionally, the measurement information includes one or more of the following: and the device is used for measuring the reference signal of the inactive BWP, reporting whether the measurement result is reported, and reporting the time-frequency resource occupied by the measurement result.

To solve the above technical problem, embodiments of the present invention further provide a storage medium having stored thereon computer instructions, which when executed perform the steps of the BWP switching method described above.

In order to solve the foregoing technical problem, an embodiment of the present invention further provides a user equipment, which includes a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the steps of the BWP switching method when executing the computer instructions.

In order to solve the above technical problem, an embodiment of the present invention further provides a base station, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform the steps of the BWP switching method.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

an embodiment of the present invention provides a BWP switching method, including: receiving first configuration information sent by a network, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP; measuring the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP; judging whether the channel state information of the inactive BWP meets a reporting condition; and if the judgment result shows that the channel state information meets the reporting condition, sending the BWP identification of the inactive BWP to the network for the network to switch the BWP. By the technical scheme provided by the embodiment of the invention, before the network switches the BWP, the UE can measure the inactive BWP and report the BWP identification of the inactive BWP, the channel state information of which meets the reporting condition, after receiving the first configuration message of the network. When the network switches the BWP, the BWP identification implies the channel state information, so that the network does not schedule the UE blindly, the large fluctuation of the throughput rate of the UE can be avoided, and the user satisfaction is improved. Furthermore, the network can reasonably schedule the UE according to the implicit channel state information, thereby obtaining better spectrum efficiency and improving user experience.

Further, according to the measurement information, the inactive BWP is measured using the measurement resources remaining after the active BWP is measured. The measurement of the inactive BWP in the embodiments of the present invention does not affect the measurement of the active BWP, and can still meet the measurement requirement of the active BWP.

Further, when the BWP id of the inactive BWP is sent, the channel state information associated with the BWP id is sent together. The embodiment of the invention can send the BWP identification and the associated channel state information together, so that the network can obtain more accurate channel state information, and further can adopt a proper modulation and demodulation strategy to transmit data to obtain higher spectrum efficiency.

Drawings

Fig. 1 is a flowchart illustrating a BWP handover method according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a BWP handover method according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a BWP switching apparatus according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a BWP switching apparatus according to another embodiment of the present invention;

fig. 5 is a schematic diagram of an exemplary application scenario according to an embodiment of the present invention.

Detailed Description

Those skilled in the art understand that, as the background art shows, there is currently no technical solution for facilitating BWP handover.

The present inventors have found through careful study that, in 3GPP Release 15, for one cell, the network can configure multiple BWPs (e.g., 4 BWPs) for the UE. However, only one of them is active BWP, and the UE can only receive Downlink Control Information (DCI) of the network through the active BWP, and receive and transmit data on the active BWP. The network may trigger the UE to switch from the current active BWP to other BWPs through the DCI. At this time, the network may also schedule the UE to receive downlink data or transmit uplink data on the new active BWP through the DCI. The active BWP for different UEs may be the same or different.

However, in the existing mechanism, the UE does not measure and report Channel State Information (CSI) of other inactive BWPs. Therefore, the network cannot know the channel state information of the UE on other inactive BWPs. At this time, the scheduling of the UE by the network is relatively blind, and if the channel quality of the BWP after network handover is lower than that of the currently active BWP, it is difficult to obtain good spectrum efficiency, and the throughput of the UE is also reduced rapidly.

An embodiment of the present invention provides a BWP switching method, including: receiving first configuration information sent by a network, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP; measuring the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP; judging whether the channel state information of the inactive BWP meets a reporting condition; and if the judgment result shows that the channel state information meets the reporting condition, sending the BWP identification of the inactive BWP to the network for the network to switch the BWP.

By the technical scheme provided by the embodiment of the invention, before the network switches the BWP, the UE can measure the inactive BWP and report the BWP identification of the inactive BWP, the channel state information of which meets the reporting condition, after receiving the first configuration message of the network. When the network switches the BWP, the BWP identification implies the channel state information, so that the network does not schedule the UE blindly, the throughput rate of the UE can be ensured not to generate large fluctuation, and the user satisfaction is improved.

Furthermore, the network can reasonably schedule the UE according to the implicit channel state information, thereby obtaining better spectrum efficiency and improving user experience.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a flowchart illustrating a BWP handover method according to an embodiment of the present invention. Wherein the BWP handover method may be applied to a user equipment side. Specifically, in a 5G system, an idle UE accesses a cell (e.g., a serving cell) and establishes an RRC connection. The UE may access BWP according to the configuration information in the system message.

More specifically, each BWP includes corresponding parameter configuration information, such as a location of a Physical REsource block occupied by the BWP and a COntrol REsource SET (CORESET) configuration therein, a Physical Downlink Shared CHannel (PDSCH) configuration, a Physical Uplink COntrol CHannel (PUCCH) configuration, a Physical Uplink Shared CHannel (PUSCH) configuration, a Reference Signal (RS) configuration, a Random Access CHannel (RACH) configuration, and other Physical layer related parameter configuration information, and the UE acquires the parameter configuration information of the BWP, and the BWP can be applied only after being activated by the network.

Thereafter, the UE may detect DCI activating CORESET on BWP. Since activation BWP may configure multiple CORESETs, and each CORESET may have one or more search spaces, the network may configure the UE with the number of blind detections for detecting each CORESET, so as to ensure that the maximum number of blind detections does not exceed the capability of the UE or the maximum number of blind detections for a single carrier set by the system.

Specifically, on activation BWP, the UE may detect its DCI in the configured one or more CORESET. Current 3GPP protocols specify that each CORESET may include two search spaces: a Common search space (Common search space) and a UE specific search space (UE specific search space). The UE may perform blind detection on the DCI according to the protocol rule in the search space.

For example, the UE may detect downlink control information belonging to the UE according to a Radio Network Temporary Identifier (RNTI). And then, receiving data or uploading data according to the downlink control information.

Wherein each UE may have one or more RNTIs. The UE does not need to detect DCI scrambled by a different RNTI in the search space on each slot. The UE may have different detection periods for different search spaces on the same CORESET. The network may configure the UE to detect the search space according to a detection period to detect DCI located in the common search space and the UE-specific search space.

The number of potential DCIs that the UE needs to detect may be one or more for each search space. Thus, each search space may be represented by a set of search spaces. In 3GPP Release 15, the maximum number of CORESET that can be configured per active BWP is 3. The maximum number of Search space sets (Search space sets) per active BWP is 10. Thus, there may be more than 3 sets of search spaces per CORESET.

As a non-limiting example, assuming that the initial BWP is BWP1, BWP1 corresponds to a plurality of parameter configurations, for example, time-frequency position of physical resource block occupied by BWP1, CORESET configuration, PDSCH configuration, PUCCH configuration, PUSCH configuration, reference signal configuration, RACH configuration, etc. And the network sends the parameter configuration to the UE in the serving cell. After that, the network instructs the UE to activate BWP1 through DCI, and the UE receives the activation signaling and then can use BWP1 to transmit traffic.

Then, the network configures the UE to measure active BWP in order to obtain the channel state information of the UE. In particular, the network may configure the UE to measure Reference signals that activate BWP, such as Synchronization Signal Block (SSB) or Channel State Information Reference Signal (CSI-RS). In addition, the network also configures the PUCCH resource for the UE to report the channel state information for activating BWP. Then, the UE may measure the SSB or CSI-RS activating BWP, and report the channel state information of the currently activated BWP through the PUCCH resource. The PUCCH resource may be a time-frequency resource position occupied by the PUCCH.

In step S101, after the UE accesses the network (e.g., serving cell base station), the network may send configuration information to the UE through signaling. The configuration information may include parameter configuration information corresponding to respective BWPs (e.g., one or more inactive BWPs). For example, the time-frequency location of the physical resource block occupied by each inactive BWP, the CORESET configuration, the PDSCH configuration, the PUCCH configuration, the PUSCH configuration, the reference signal configuration, the RACH configuration, etc.

Further, the configuration information may be transmitted through RRC signaling. For example, the network may send the first configuration information to the UE through RRC signaling.

Specifically, the first configuration information may be configuration information including measurement inactive BWP to instruct the UE to measure inactive BWP. Wherein the measurement information may include: and measuring the BWP identification of the inactive BWP, measuring a reference signal on the inactive BWP, reporting whether to report a measurement result, reporting a time-frequency resource occupied by the measurement result and the like. In particular implementations, the network may instruct the UE to measure channel state information for some or all of the inactive BWPs.

In a specific implementation, if the UE has a traffic demand or the network considers the load demands of different BWPs and the network configures multiple inactive BWPs for the UE, the network may switch the UE from the current active BWP to other inactive BWPs. In order to improve scheduling efficiency when switching BWP, the network may transmit measurement information before performing BWP switching, so that the UE may measure candidate BWPs for BWP switching in advance. At this time, the network may transmit measurement information of other inactive BWPs to the UE as the first configuration information.

In particular, the network may indicate configuration information on other BWPs to the UE through signaling. For example, the CSI-RS or SSB may be inactive BWP. Further, the network needs to indicate whether the UE measures CSI on other inactive BWPs. When the UE is instructed to measure other inactive BWPs, the network may configure the PUCCH resource for which the UE reports the BWP identifier.

As a non-limiting example, the network may indicate the reference signal information on other BWPs through RRC signaling. E.g., CSI-RS or SSB for inactive BWP. The network may also indicate whether the UE reports CSI and reports PUCCH resources occupied by CSI. The PUCCH resource may be a time-frequency resource location occupied by PUCCH. Those skilled in the art understand that the PUCCH resource is located on the currently active BWP and is located only on the primary cell or on the secondary cell configured with PUCCH.

In step S102, after the UE receives the first configuration information including the measurement information, the UE may measure the reference signal at a time corresponding to the reference signal according to the configuration information of the reference signal on the inactive BWP, and evaluate the channel state information thereof.

In step S103, the UE may determine whether the channel state information of the inactive BWP satisfies a reporting condition according to the evaluation result. The reporting condition may be a preset reporting condition agreed in advance by the network and the UE.

As a non-limiting example, the preset reporting condition may include: the measured Channel Quality Indicator (CQI) on other inactive BWPs is higher than the CQI on the currently active BWP; alternatively, the measured CQI on other inactive BWPs is above a preset CQI threshold.

Further, in step S104, if the channel state information of the inactive BWP satisfies the reporting condition, the UE may report the BWP id of the inactive BWP. After the UE sends the BWP id of the inactive BWP to the network, the network can know the BWP meeting the channel state information according to the BWP ids of other inactive BWPs, and can select one BWP for BWP handover, which can not only save signaling transmission of the UE, but also avoid the network switching the UE to an inappropriate BWP.

Further, when the UE transmits the BWP identity of the inactive BWP, channel state information (e.g., CQI information) associated with the BWP identity may be transmitted together. When the network needs to perform BWP handover on the UE, the UE may be handed over to the BWP with good channel state according to the received channel state information. At this time, since the network obtains more accurate channel state information, the network can schedule the UE more reasonably. For example, data is transmitted to the UE by adopting a suitable modulation and demodulation strategy, thereby obtaining higher spectral efficiency.

Preferably, since the network needs to avoid the UE from frequently measuring the channel state information on the inactive BWP, the UE may save the relevant measurement information after the network sends the measurement information for measuring the inactive BWP to the UE through RRC signaling.

Further, when the UE receives a Media Access Control (MAC) layer Control signaling (e.g., a Control Element (CE)) that the network notifies the UE whether the UE needs to measure CSI on the inactive BWP, the UE measures the inactive BWP. That is, when the UE receives the MAC layer control signaling, the UE measures CSI on the inactive BWP. This is because the MAC layer control signaling is sent more quickly so that the network can quickly inform the UE whether to detect CSI on inactive BWP.

And then, the UE may report the obtained BWP id and CSI associated therewith according to the configured PUCCH resource.

Those skilled in the art understand that the UE may first measure the active BWP, and then the UE may measure the inactive BWP using the measurement resources remaining after measuring the active BWP. For example, when the UE performs measurement on the inactive BWP, the measurement priority of the inactive BWP may be set to be lower than that of the active BWP, that is, the measurement requirement for the inactive BWP is lower than that for the active BWP measured by the UE. Therefore, the measurement of the inactive BWP by the UE does not affect the measurement of the active BWP, and the measurement requirement of the active BWP can be satisfied.

As one non-limiting example, assume that the UE's currently active BWP is BWP1, and other inactive BWPs include BWP2 and BWP 3. The BWP1, BWP2, and BWP3 all correspond to multiple parameter configurations, such as the location of the physical resource block, PDSCH configuration, PUCCH configuration, PUSCH configuration, reference signal configuration, RACH configuration, CORESET configuration, and the number of blind detections of the search space on each CORESET. In addition, the network configures a measurement reference signal (e.g., SSB or CSI-RS) for BWP1 and a PUCCH resource for the UE to report channel state information of BWP 1. At this time, the UE still has only one active BWP, BWP 1.

Further, to improve the scheduling efficiency of switching BWPs, the network may configure measurement information for BWP2, BWP3, e.g., the network indicates to the UE reference signals (e.g., CSI-RS or SSB) on BWP2 and BWP3 and whether the UE needs to measure BWP2, BWP 3. When indicating that the UE needs to measure BWP2 and BWP3, the network may also configure PUCCH resources used by the UE to report channel state information of BWP2 and BWP 3. Note that the PUCCH resource is located on active BWP 1.

Specifically, as a non-limiting example, the network may indicate through RRC signaling whether the UE needs to measure and report CSI on BWP2 or BWP 3. If the UE receives the first configuration information containing the measurement information, the UE may perform measurement at a time corresponding to the reference signal according to the reference signal information on BWP2 and BWP3, and evaluate its channel state information. If the channel state information of BWP2 and BWP3 satisfies the reporting condition (e.g., the CQI of BWP2 and/or BWP3 is higher than the CQI of BWP1 in the same serving cell, or the CQI of BWP2 and/or BWP3 is higher than a preset threshold), the UE may report the BWP identity according to the configured PUCCH resource, or report the BWP identity and the CQI associated therewith.

As a variation, the network may indicate by MAC layer control signaling whether the UE measures CSI on BWP2 or BWP 3. If the channel state information of BWP2 and BWP3 satisfies the reporting condition (e.g., CQI of BWP2 and/or BWP3 is higher than CQI of BWP1 in the same serving cell, or CQI of BWP2 and/or BWP3 is higher than a preset threshold), the UE may report BWP id of BWP2 and/or BWP 3. Preferably, the UE may also report the CQI on BWP2 and/or BWP3 together, so as to save signaling overhead and avoid the network switching the UE to an inappropriate BWP. When the carrier aggregation is performed, the UE may have multiple serving cells, and at this time, when determining whether the reporting condition is satisfied, the UE needs to compare the CQI on the inactive BWP and the CQI on the active BWP of the same serving cell.

Fig. 2 is a flowchart illustrating a BWP handover method according to another embodiment of the present invention. The BWP handover method may be applied to the network side, as performed by the base station on the network side. Specifically, referring to fig. 2, the BWP switching method may include the steps of:

step S201: sending first configuration information to a user equipment, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP (broadband access point), so that the user equipment measures the inactive BWP according to the measurement information;

step S202: receiving a BWP identification of the inactive BWP sent by the user equipment to switch BWP.

Specifically, in step S201, the network (e.g., serving cell base station) may transmit first configuration information to the UE, which may include measurement information informing the UE to measure the inactive BWP of the UE. After receiving the first configuration information, the UE may measure the inactive BWP according to the measurement information in the first configuration information.

Wherein the first configuration information is transmitted through RRC signaling or MAC layer control signaling. The measurement information may include one or more of: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported.

In step S202, after the UE completes measurement of the inactive BWP based on the measurement information, if the measured channel state information of the inactive BWP satisfies the reporting condition, the network may receive the BWP id of the inactive BWP sent by the UE. After that, the network may perform BWP handover for the UE.

Preferably, the UE may transmit channel state information associated with the BWP identity together when transmitting the BWP identity. Accordingly, the network may receive the channel state information associated with the BWP identity when receiving the BWP identity sent by the UE.

Further, the network may send second configuration information for handover activation BWP to the UE according to the received BWP identity.

Those skilled in the art understand that the steps S201 to S202 can be regarded as execution steps corresponding to the steps S101 to S104 described in the above embodiment shown in fig. 1, and the two steps are complementary in specific implementation principle and logic. Therefore, reference may be made to the related description of the embodiment shown in fig. 1 for a BWP handover method on the network side, which is not described herein again.

Therefore, by adopting the technical scheme of the embodiment of the invention, the UE can measure and report the inactive BWP after the network configures the measurement information of the inactive BWP, so that the network can obtain the channel state information on the inactive BWP, thereby ensuring that the throughput of the UE does not generate large fluctuation when switching the BWP, and obtaining better spectrum efficiency to improve the user experience.

Fig. 3 is a schematic structural diagram of a BWP switching device according to an embodiment of the present invention. The BWP switching apparatus 3 described in fig. 3 may be applied to the user equipment side. Those skilled in the art will understand that the BWP switching device 3 according to the embodiment of the present invention can be used to implement the BWP switching method technical solution described in the embodiment of fig. 1.

Specifically, as shown in fig. 3, the BWP switching device 3 may include: a first receiving module 31, adapted to receive first configuration information sent by a network, where the first configuration information is used to indicate measurement information for measuring an inactive BWP; a measurement module 32, adapted to measure the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP; a determining module 33, adapted to determine whether the channel state information of the inactive BWP meets a reporting condition; the first sending module 34, if the determination result indicates that the channel state information satisfies the reporting condition, the first sending module 34 is adapted to send the BWP id of the inactive BWP to the network, so that the network switches BWP.

Further, the measurement module 32 may include: a measurement sub-module 321 adapted to measure the inactive BWP using the measurement resources remaining after the measurement of the active BWP according to the measurement information.

Further, the determining module 33 may include: a first determining sub-module 331 adapted to determine whether a channel quality indicator value of the inactive BWP is higher than a channel quality indicator value of the active BWP of the same serving cell; alternatively, the second determining sub-module 332 is adapted to determine whether the channel quality indication value of the inactive BWP is higher than a preset channel quality indication threshold.

Further, the BWP switching device 3 may further include: the second sending module 35 is adapted to send the BWP id of the inactive BWP together with the channel state information associated with the BWP id.

Further, the BWP switching device 3 may further include: a second receiving module 36, adapted to receive second configuration information of the handover activation BWP sent by the network.

Further, the first configuration information is sent by the network through RRC signaling or MAC layer control signaling.

Further, the measurement configuration information includes one or more of: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported.

For more details on the operation principle and operation mode of the BWP switching device 3, reference may be made to the description in fig. 1, and further description is omitted here.

Fig. 4 is a schematic structural diagram of a BWP switching device according to another embodiment of the present invention. The BWP switching apparatus 4 described in fig. 4 may be applied to the network side, as performed by the base station on the network side. Those skilled in the art will understand that the BWP switching device 4 according to the embodiment of the present invention can be used to implement the BWP switching method technical solution described in the embodiment shown in fig. 2.

Specifically, the BWP switching device 4 may include: a third sending module 41, adapted to send first configuration information to a user equipment, where the first configuration information is used to indicate measurement information for measuring an inactive BWP, so that the user equipment measures the inactive BWP according to the measurement information; a third receiving module 42, adapted to receive the BWP identification of the inactive BWP sent by the user equipment, so as to switch BWP.

Further, the BWP switching device 4 may further include: a fourth receiving module 43, adapted to receive the BWP id sent by the user equipment, and receive the channel state information associated with the BWP id.

Further, the BWP switching device 4 may further include: a fourth sending module 44 adapted to send second configuration information for handover activation BWP to the user equipment.

Further, the measurement information includes one or more of: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported.

For more details on the operation principle and operation mode of the BWP switching device 4, reference may be made to the description in fig. 2, and details are not repeated here.

The signaling interaction between the user equipment and the network (e.g., NR base station) employing embodiments of the present invention is further described below in conjunction with a typical application scenario.

In a typical application scenario, referring to fig. 5, first, the network 2 may perform operation s1, that is, the network 2 sends first configuration information to the user equipment 1, where the first configuration information is used for indicating measurement information for measuring the inactive BWP. Wherein the first configuration information may be measurement information sent by the network 2 through RRC signaling or MAC layer control signaling. The measurement information may include one or more of: and the device is used for measuring the reference signal of the inactive BWP, reporting whether the measurement result is reported, and reporting the time-frequency resource occupied by the measurement result.

Secondly, the user equipment 1 may perform operation s21, namely, measure the inactive BWP according to the measurement information to obtain the channel state information of the inactive BWP;

thirdly, the ue 1 may perform operation s22, that is, the ue 1 determines whether the channel state information of the inactive BWP meets a reporting condition according to the measurement result, where the reporting condition may be a preset reporting condition agreed in advance by the network 2 and the ue 1;

then, if the determination result indicates that the channel state information satisfies the reporting condition, the ue 1 may execute operation s3, that is, the ue 1 sends the BWP id of the inactive BWP to the network 2, so that the network 2 performs BWP handover; preferably, when the user equipment 1 transmits the BWP id of the inactive BWP, the channel state information associated with the BWP id may be transmitted together.

Finally, the network 2 may perform operation s4, i.e. the network 2 sends the second configuration information of the handover activation BWP to inform the user equipment 1 of the handover activation BWP.

For more contents of the working principle and the working mode of the user equipment 1 and the network 2 in the application scenario shown in fig. 5, reference may be made to the related description in fig. 1 and fig. 2 together, and details are not repeated here.

Further, an embodiment of the present invention further discloses a storage medium, where a computer instruction is stored, and when the computer instruction runs, the technical solution of the BWP switching method in the embodiments shown in fig. 1 and fig. 2 is executed. Preferably, the storage medium may include a computer-readable storage medium. The storage medium may include ROM, RAM, magnetic or optical disks, etc.

Further, an embodiment of the present invention further discloses a user equipment, which includes a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and the processor executes the computer instruction to execute the technical solution of the BWP switching method in the embodiment shown in fig. 1.

Further, an embodiment of the present invention further discloses a base station, which includes a memory and a processor, where the memory stores a computer instruction capable of being executed on the processor, and when the processor executes the computer instruction, the base station executes the technical solution of the BWP handover method in the embodiment shown in fig. 2. Preferably, the base station may interact with the user equipment, and specifically, the base station is an NR base station.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A partial bandwidth BWP switching method, wherein the partial bandwidth BWP switching method is performed by a user equipment and comprises:

receiving first configuration information sent by a network, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP;

measuring the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP;

judging whether the channel state information of the inactive BWP meets the reporting condition, including: judging whether the channel quality indicated value of the non-activated BWP is higher than the channel quality indicated value of the activated BWP of the same serving cell; or, judging whether the channel quality indication value of the inactive BWP is higher than a channel quality indication preset threshold;

and if the judgment result shows that the channel state information meets the reporting condition, sending the BWP identification of the inactive BWP to the network for the network to switch the BWP.

2. The BWP handover method according to claim 1, wherein said measuring the inactive BWP according to the measurement information comprises:

and measuring the inactive BWP by using the measurement resources left after the measurement of the active BWP according to the measurement information.

3. The BWP switching method according to claim 1, further comprising:

and when the BWP identification of the inactive BWP is sent, sending the channel state information associated with the BWP identification together.

4. The BWP switching method according to claim 1, further comprising:

and receiving second configuration information of switching activation BWP sent by the network.

5. The BWP handover method according to any of claims 1 through 4, wherein the first configuration information is transmitted by the network through RRC signaling or MAC layer control signaling.

6. The BWP handover method according to any of claims 1-4, wherein said measurement information includes one or more of: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported.

7. A partial bandwidth BWP handover method, performed by a base station, comprising:

sending first configuration information to a user equipment, wherein the first configuration information is used for indicating measurement information for measuring an inactive BWP (broadband access point), so that the user equipment measures the inactive BWP according to the measurement information; the measurement information includes one or more of: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported;

receiving a BWP identification of the inactive BWP sent by the user equipment to switch BWP.

8. The BWP switching method according to claim 7, further comprising:

and when receiving the BWP identification sent by the user equipment, receiving the channel state information associated with the BWP identification.

9. The BWP switching method according to claim 7, further comprising:

transmitting second configuration information for handover activation BWP to the user equipment.

10. The BWP handover method according to any one of claims 7 to 9, wherein the first configuration information is sent via RRC signaling or MAC layer control signaling.

11. A partial bandwidth BWP switching apparatus, comprising:

a first receiving module, adapted to receive first configuration information sent by a network, where the first configuration information is used to indicate measurement information for measuring an inactive BWP;

a measurement module adapted to measure the inactive BWP according to the measurement information to obtain channel state information of the inactive BWP;

the determining module is adapted to determine whether the channel state information of the inactive BWP satisfies a reporting condition, and includes: a first judging sub-module, adapted to judge whether the channel quality indication value of the inactive BWP is higher than the channel quality indication value of the active BWP of the same serving cell; or, a second determining sub-module, adapted to determine whether a channel quality indication value of the inactive BWP is higher than a channel quality indication preset threshold;

and a first sending module, adapted to send the BWP id of the inactive BWP to the network for the network to switch BWP if the determination result indicates that the channel state information satisfies the reporting condition.

12. The BWP switching device of claim 11, wherein said measurement module comprises: a measurement sub-module adapted to measure the inactive BWP using measurement resources remaining after BWP activation according to the measurement information.

13. The BWP switching device according to claim 11, further comprising:

and a second sending module, adapted to send the BWP id of the inactive BWP together with the channel state information associated with the BWP id.

14. The BWP switching device according to claim 11, further comprising:

a second receiving module, adapted to receive second configuration information of the handover activation BWP sent by the network.

15. The BWP switching device according to any of claims 11-14, wherein said first configuration information is sent by said network through RRC signaling or MAC layer control signaling.

16. The BWP switching device according to any one of claims 11-14, wherein said measurement information includes one or more of the following: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported.

17. A partial bandwidth BWP switching apparatus, comprising:

a third sending module, adapted to send first configuration information to a user equipment, where the first configuration information is used to indicate measurement information for measuring an inactive BWP, so that the user equipment measures the inactive BWP according to the measurement information; the measurement information includes one or more of: the BWP identification is used for measuring the inactive BWP, the reference signal is used for measuring the inactive BWP, whether the measurement result is reported or not, and the time-frequency resource occupied by the measurement result is reported;

a third receiving module, adapted to receive the BWP identification of the inactive BWP sent by the user equipment, so as to switch BWP.

18. The BWP switching device according to claim 17, further comprising:

a fourth receiving module, adapted to receive the BWP id sent by the user equipment, and receive the channel state information associated with the BWP id.

19. The BWP switching device according to claim 17, further comprising:

a fourth sending module adapted to send second configuration information for handover activation, BWP, to the user equipment.

20. The BWP switching device according to any of claims 17-19, wherein said first configuration information is sent via RRC signaling or MAC layer control signaling.

21. A storage medium having stored thereon a computer program characterized in that the computer program, when being executed by a processor, performs the steps of the partial bandwidth BWP switching method according to any one of claims 1 to 6 or any one of claims 7 to 10.

22. A user equipment comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the partial bandwidth BWP switching method according to any one of claims 1 to 6.

23. A base station comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the partial bandwidth BWP switching method according to any one of claims 7 to 10.