CN112399459A

CN112399459A - Measurement configuration method of bandwidth part, terminal and network equipment

Info

Publication number: CN112399459A
Application number: CN201910759100.5A
Authority: CN
Inventors: 胡丽洁; 王飞; 夏亮; 徐晓东; 王启星; 李男
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2021-02-23
Anticipated expiration: 2039-08-16
Also published as: CN112399459B

Abstract

A method, a terminal and a network device for configuring measurement of a bandwidth part are provided, the method comprises: receiving a first configuration message sent by a network, wherein the first configuration message is used for configuring the measurement association relationship of at least two BWPs of the same cell; when the active BWP of the terminal is a first BWP, the terminal switches to a second BWP for measurement before the arrival of the measurement opportunity of the second BWP, wherein the first BWP is one BWP of the at least two BWPs, and the second BWP is the other BWP except the first BWP. The embodiment of the invention provides a solution for how to measure other BWPs under the condition of configuring channel measurement resources and reporting configuration for each BWP, and can create conditions for the terminal to switch among the BWPs with different coverage levels.

Description

Measurement configuration method of bandwidth part, terminal and network equipment

Technical Field

The invention relates to the technical field of mobile communication, in particular to a method for measuring and configuring a bandwidth part, a terminal and network equipment.

Background

New air interface (NR, New Radio) systems introduce beam scanning to enhance coverage, and achieve longer coverage distances by using directional, narrower Synchronization Signal Block (SSB) beams. The coverage is carried out through SSBs of different beams in different directions, so that the advantages of large-scale antennas can be fully utilized, and the coverage enhancement of the cell search and the initial access of NR can be realized.

From standard design to network planning, the design is usually performed with the goal of cell equal coverage, and the coverage in each direction is as equivalent as possible. In actual network deployment, however, there may be some scenarios that result in short coverage in certain directions. For example, in the coverage area of the same cell, there are dense trees or buildings in one direction, the signal propagation in the direction may experience large attenuation, which results in poor coverage in the direction, low user rate, and coverage shrinkage, thereby causing short coverage in the cell. The most direct method to solve the coverage problem is to add relay devices (such as repeater or relay devices) and even new cells to cover these areas, but the above method usually requires more hardware facilities, resulting in increased network cost.

NR also supports the transmission of multiple cell defining SSBs in the same cell, and different users can access the SSBs on different synchronization grids during searching, thereby implementing multiple candidate initial (initial) BWP accesses.

In order to obtain the channel quality, the network generally needs to configure channel measurement and reporting resources, so that relevant operations such as user scheduling and beam management can be performed according to the measured channel quality reported by the terminal and the channel quality measured by the base station. Channel measurement of the NR system is generally implemented based on a channel state information reference signal (CSI-RS) or an SSB, and configuration of a time domain behavior of measurement report, a reported channel quality, and a PUCCH resource used for reporting is implemented through CSI-report configuration, and downlink measurement resources according to reporting, including a time-frequency position of the measurement resource, a power control parameter, a scrambling parameter, and antenna quasi co-location (QCL) information, are determined by associating to CSI-resource (CSI-resource) configuration.

The way in which the NR system transmits multiple cell defining SSBs simultaneously provides a possibility to implement different coverage accesses, where terminals accessed from different candidate initial BWPs can be in areas with different coverage levels, i.e. some BWPs provide normal coverage and some BWPs provide deeper coverage. As users move within a cell, handovers at different coverage levels may occur. The precondition for switching between different coverage classes is that the terminal needs to measure and grasp the channel quality of BWPs of other coverage classes to determine whether to switch to BWPs of other coverage classes, and specifically which coverage class BWP needs to be switched to.

The measurement reporting configuration in the prior art is performed on a per BWP (per BWP) basis, and although a terminal can configure 4 BWPs at most, the terminal can only activate one BWP at a time and only measure the channel quality of the activated BWP. Therefore, a solution is needed to perform measurement of BWPs other than active BWPs under the condition of configuring channel measurement resources per BWP and reporting configuration, so as to obtain channel quality of other BWPs in time.

Disclosure of Invention

At least one embodiment of the present invention provides a method, a terminal, and a network device for configuring measurement of a bandwidth portion, which can perform measurement of BWPs other than active BWPs under the condition of configuring channel measurement resources and reporting configuration per BWP, so as to obtain channel quality of other BWPs in time.

According to an aspect of the present invention, at least one embodiment provides a method for configuring measurement of a bandwidth part, including:

receiving a first configuration message sent by a network, wherein the first configuration message is used for configuring the measurement association relationship of at least two BWPs of the same cell;

when the active BWP of the terminal is a first BWP, the terminal switches to a second BWP for measurement before the arrival of the measurement opportunity of the second BWP, wherein the first BWP is one BWP of the at least two BWPs, and the second BWP is the other BWP except the first BWP.

Furthermore, according to at least one embodiment of the present invention, the first configuration message includes configuration information of the first BWP and/or the second BWP, and the configuration information includes a channel state information CSI resource configuration and/or a CSI reporting configuration.

Further, according to at least one embodiment of the present invention, the first configuration message is a CSI resource configuration corresponding to a first BWP in which a CSI measurement resource corresponding to a second BWP is configured.

Furthermore, according to at least one embodiment of the present invention, the first configuration message is a CSI reporting configuration corresponding to a first BWP, and a CSI reporting configuration corresponding to a second BWP is configured in the CSI reporting configuration corresponding to the first BWP, where the CSI reporting configuration corresponding to the second BWP includes an index of a CSI resource configuration of the second BWP, and the CSI resource configuration of the second BWP includes a CSI measurement resource of the second BWP.

In addition, according to at least one embodiment of the present invention, the first configuration message is CSI reporting configuration corresponding to a first BWP, where the CSI reporting configuration of the first BWP includes an index of CSI resource configuration of a second BWP, and the CSI resource configuration of the second BWP includes CSI measurement resource of the second BWP.

Further, in accordance with at least one embodiment of the present invention, the first configuration message includes IDs of the first BWP and the second BWP.

Further, according to at least one embodiment of the invention, after the measurement is performed on the second BWP, the method further comprises:

when the reporting configuration of the second BWP exists in the first configuration message and the CSI reporting resource is configured in the reporting configuration of the second BWP, sending the measurement result on the second BWP by using the CSI reporting resource of the second BWP, otherwise, switching back to the first BWP and sending the measurement result on the second BWP by using the CSI reporting resource on the first BWP.

Further, in accordance with at least one embodiment of the present invention, the timing of switching back to the first BWP after the completion of the measurement on the second BWP is configured or predefined by the network.

Furthermore, according to at least one embodiment of the invention, the time difference between the occasion of switching to measurement on the second BWP and the measurement occasion of the second BWP is configured or predefined by the network.

Furthermore, according to at least one embodiment of the present invention, the switching, by the terminal, to the second BWP for measurement before the arrival of the measurement occasion of the second BWP includes:

and the terminal judges whether the channel quality of the currently activated first BWP is lower than a preset quality threshold or not before the measurement opportunity of the second BWP is reached, and switches to the second BWP for measurement when the channel quality of the currently activated first BWP is lower than the preset quality threshold.

The embodiment of the invention also provides a measurement configuration method for the bandwidth part BWP, which comprises the following steps:

and sending a first configuration message to a terminal, where the first configuration message is used to configure a measurement association relationship of at least two BWPs of the same cell, where the measurement association relationship refers to that, when an active BWP of the terminal is a first BWP, the terminal performs measurement on a second BWP before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Furthermore, according to at least one embodiment of the present invention, the first configuration message is a CSI reporting configuration corresponding to a first BWP, the CSI reporting configuration of the first BWP includes an index of a CSI resource configuration of an associated second BWP, and the CSI resource configuration of the second BWP includes a CSI measurement resource of the second BWP.

Further, in accordance with at least one embodiment of the present invention, the method further comprises:

configuring a time difference between the timing of switching the terminal to the second BWP for measurement and the timing of measurement of the second BWP; and/or the presence of a gas in the gas,

and configuring the timing for switching back to the first BWP after the terminal completes measurement on the second BWP.

An embodiment of the present invention further provides a terminal, including:

a receiving module, configured to receive a first configuration message sent by a network, where the first configuration message is used to configure a measurement association relationship between at least two BWPs in a same cell;

and a measurement module, configured to, when an active BWP of the terminal is a first BWP, switch the terminal to a second BWP for measurement before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Optionally, the first configuration message includes configuration information of the first BWP and/or the second BWP, where the configuration information includes channel state information CSI resource configuration and/or CSI reporting configuration.

Optionally, the first configuration message is a CSI resource configuration corresponding to a first BWP, and a CSI measurement resource corresponding to a second BWP is configured in the CSI resource configuration of the first BWP.

Optionally, the first configuration message is CSI reporting configuration corresponding to a first BWP, and the CSI reporting configuration corresponding to the first BWP is configured with CSI reporting configuration corresponding to a second BWP, where the CSI reporting configuration corresponding to the second BWP includes an index of CSI resource configuration of the second BWP, and the CSI resource configuration of the second BWP includes CSI measurement resources of the second BWP.

Optionally, the first configuration message is CSI reporting configuration corresponding to a first BWP, where the CSI reporting configuration of the first BWP includes an index of CSI resource configuration of a second BWP, and the CSI resource configuration of the second BWP includes CSI measurement resource of the second BWP.

Optionally, the first configuration message includes IDs of the first BWP and the second BWP.

Optionally, the terminal further includes:

a reporting module, configured to send a measurement result on the second BWP by using a CSI reporting resource of the second BWP after the measurement is performed by switching to the second BWP, and when the reporting configuration of the second BWP exists in the first configuration message and the CSI reporting resource is configured in the reporting configuration of the second BWP, otherwise, switch back to the first BWP and send the measurement result on the second BWP by using the CSI reporting resource of the first BWP.

Optionally, the timing for switching back to the first BWP after the measurement is completed on the second BWP is configured or predefined by a network.

Optionally, the time difference between the timing of switching to the measurement on the second BWP and the measurement timing of the second BWP is configured or predefined by the network.

Optionally, the measurement module is further configured to, before a measurement opportunity of the second BWP arrives, determine whether the channel quality of the currently activated first BWP is lower than a preset quality threshold, and switch to the second BWP for measurement when the channel quality of the currently activated first BWP is lower than the preset quality threshold.

In accordance with another aspect of the present invention, at least one embodiment provides a terminal comprising a transceiver and a processor, wherein,

the transceiver is configured to receive a first configuration message sent by a network, where the first configuration message is used to configure a measurement association relationship between at least two BWPs in a same cell;

the processor is configured to, when an active BWP of the terminal is a first BWP, switch the terminal to a second BWP for measurement before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Optionally, the processor is further configured to, after the measurement is performed on the second BWP by switching to the second BWP, send the measurement result on the second BWP by using the CSI reporting resource of the second BWP when the reporting configuration of the second BWP exists in the first configuration message and the CSI reporting resource is configured in the reporting configuration of the second BWP, and otherwise, switch back to the first BWP and send the measurement result on the second BWP by using the CSI reporting resource on the first BWP.

Optionally, the processor is further configured to, before a measurement opportunity of the second BWP arrives, determine whether the channel quality of the currently activated first BWP is lower than a preset quality threshold, and switch to the second BWP for measurement when the channel quality of the currently activated first BWP is lower than the preset quality threshold.

According to another aspect of the present invention, at least one embodiment provides a terminal including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the measurement configuration method as described above.

According to another aspect of the present invention, at least one embodiment provides a network device, including:

a sending module, configured to send a first configuration message to a terminal, where the first configuration message is used to configure a measurement association relationship of at least two BWPs of a same cell, where the measurement association relationship refers to that, when an active BWP of the terminal is a first BWP, the terminal performs measurement on a second BWP before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Optionally, the sending module is further configured to configure a time difference between a timing when the terminal switches to the second BWP for measurement and a measurement timing of the second BWP; and/or configuring the timing for switching back to the first BWP after the terminal completes measurement on the second BWP.

According to another aspect of the present invention, at least one embodiment provides a network device, including: a transceiver and a processor, wherein,

the transceiver is configured to send a first configuration message to a terminal, where the first configuration message is used to configure a measurement association relationship of at least two BWPs of the same cell, where the measurement association relationship refers to that, when an active BWP of the terminal is a first BWP, the terminal performs measurement on a second BWP before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Optionally, the processor is configured to configure a time difference between an opportunity of the terminal to switch to the second BWP for measurement and a measurement opportunity of the second BWP; and/or configuring the timing for switching back to the first BWP after the terminal completes measurement on the second BWP.

According to another aspect of the present invention, at least one embodiment provides a network device, including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the measurement configuration method as described above.

According to another aspect of the invention, at least one embodiment provides a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.

Compared with the prior art, the method, the terminal and the network device for configuring measurement of a bandwidth portion according to the embodiments of the present invention configure multiple BWPs associated with each other, so that the terminal switches to an inactive BWP according to the configured association relationship before a measurement opportunity of the inactive BWP arrives, and performs channel quality measurement when the measurement opportunity of the inactive BWP arrives to obtain the signal quality of the inactive BWP.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic view of an application scenario according to an embodiment of the present invention;

fig. 2 is a flowchart of a measurement configuration method according to an embodiment of the present invention;

fig. 3 is a diagram illustrating an example of associating BWPs in a measurement configuration method according to an embodiment of the present invention;

fig. 4 is a diagram illustrating another example of associating BWPs in a measurement configuration method according to an embodiment of the present invention;

fig. 5 is a diagram illustrating a BWP association in a measurement configuration method according to an embodiment of the present invention;

fig. 6 is a flowchart of a measurement configuration method of a bandwidth part according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to NR systems and Long Time Evolution (LTE)/LTE Evolution (LTE-a) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.21(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a User terminal or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station and/or a core network element, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention only takes the Base Station in the NR system as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

Referring to fig. 2, a method for configuring measurement of a bandwidth portion (BWP) according to an embodiment of the present invention, when applied to a terminal side, includes:

step 21, receiving a first configuration message sent by a network, where the first configuration message is used to configure a measurement association relationship between at least two BWPs in the same cell.

Here, the measurement association refers to that, when the active BWP of the terminal is the first BWP of the at least two BWPs, the terminal switches to the second BWP for measurement before the measurement opportunity of the second BWP arrives, where the second BWP is the other BWP of the at least two BWPs except the first BWP. In addition, in the embodiment of the present invention, at least two BWPs having the above-described measurement association relationship may be referred to as correlated BWPs.

In this embodiment of the present invention, the first configuration message includes configuration information of the first BWP and/or the second BWP, where the configuration information includes channel state information CSI resource configuration and/or CSI reporting configuration.

And step 22, when the active BWP of the terminal is a first BWP, the terminal switches to a second BWP for measurement before the measurement timing of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Here, the above step 22 implements a BWP handover scheme triggered based on a measurement occasion (occasion) of a measurement resource. The measurement/reporting occasion on inactive BWP is decided according to its measurement resource configuration/measurement reporting configuration. The BWP handover is triggered before the arrival of the measurement occasion of the inactive BWP (which may be separated by a preset time difference, which may be configured by the network or predefined) and is handed over to the BWP corresponding to the measurement resource (the second BWP, which may be 1 or more), and then the measurement resource is handed over back to the original active BWP (the first BWP) after the completion of the measurement and/or reporting (depending on whether the reporting is done on the measured BWP or the reporting back to the original active BWP).

The timing for switching back to the first BWP after the measurement on the second BWP is completed may also be configured or predefined by the network. For example, a measurement timer may be defined to implement BWP switch-back after measurement and/or reporting, and the duration of the measurement timer is related to the duration of the measurement resource, and may specifically be in units of slots (slots). For example, when the measurement resource on the second BWP lasts for one slot, the duration of the measurement timer may be a value greater than or equal to 1.

Through the above steps, the embodiment of the present invention configures multiple BWPs associated with each other, so that before a measurement occasion of a certain inactive BWP arrives, the terminal switches to the inactive BWP according to the configured association relationship, and performs channel quality measurement when the measurement occasion of the inactive BWP arrives, so as to obtain the signal quality of the inactive BWP. Therefore, the embodiment of the invention can perform measurement of other BWPs except active BWP under the condition of configuring channel measurement resources and reporting configuration per BWP, so as to obtain channel quality of other BWPs in time and provide reference information of channel quality for the terminal to switch between BWPs of different coverage levels.

After switching to the second BWP for measurement, the terminal may perform measurement reporting on the second BWP or report back to the first BWP for reporting, specifically, when the reporting configuration of the second BWP is configured in the first configuration message and the CSI reporting resource is configured in the reporting configuration of the second BWP, the terminal may send the measurement result on the second BWP by using the CSI reporting resource of the second BWP, otherwise, the terminal may switch back to the first BWP and send the measurement result on the second BWP by using the CSI reporting resource on the first BWP.

In addition, in order to perform channel measurement on the inactive BWP more effectively and reduce unnecessary measurement, in step 22, the terminal may determine whether the channel quality of the currently active first BWP is lower than the preset quality threshold before the measurement occasion of the second BWP arrives, and switch to the second BWP for measurement only when the channel quality is lower than the preset quality threshold. In this way, the terminal performs BWP handover measurement triggered by measurement resource configuration or measurement report configuration, which is triggered only under certain conditions, so as to reduce unnecessary measurement to a certain extent.

As can be seen from the above description, according to the embodiment of the present invention, through the association relationship between the measurement resources controlled by the network and the measurement report configuration, the network can control which BWPs need to measure the channel quality of the other BWPs when the terminal operates on one BWP.

For example, BWP0 and BWP1 in cell 1 are both normal overlay user access and working BWP, BWP2 and BWP3 are both enhanced overlay user access and working BWP, and BWP2 and BWP3 may be different directions of enhanced overlay. The base station can configure the measurement resource or the report configuration on BWP0/1, and associate the measurement resource or the report configuration with BWP2 and BWP3, so that when the terminal operates on BWP0 or BWP1, the BWP switch is performed based on the association relationship of the measurement configuration to measure the channel quality of BWP2 and BWP 3.

The implementation manner of the measurement association configuration may be to add an index/identifier of other associated CSI reporting configurations (CSI-ReportConfigId) or an index/identifier of CSI resource configurations (CSI-resourceconconfigid) to a Radio Resource Control (RRC) message configuration CSI reporting configuration (CSI-ReportConfig) or a CSI resource configuration (CSI-resourceconconfigid), or to directly associate two or more BWPs, so that when any one of the BWPs is activated, BWP handover measurement is performed according to the measurement resources or reporting configurations of the other associated BWPs.

A plurality of specific implementations of associating BPWs with each other in the embodiment of the present invention are provided below, and it should be noted that the following is only one or more implementations that may be adopted in the embodiment of the present invention, and is not intended to limit the present invention.

Mode 1: the first configuration message is a CSI resource configuration corresponding to a first BWP, and a CSI measurement resource corresponding to a second BWP is configured in the CSI resource configuration of the first BWP.

In the method 1, for the same CSI reporting configuration (CSI report), multiple CSI measurement resources (CSI resources) are associated, and different CSI measurement resources (CSI resources) correspond to different BWPs. For the associated CSI resource, when the corresponding BWP is inactive, the BWP is switched at a time that satisfies a certain time interval (gap) before the measurement opportunity, and the measurement is completed by switching to a new BWP, and then the measurement report can be performed by switching back to the original BWP. Fig. 3 shows an example of the measurement timing in the association manner, there are respective CSI measurement timings on BWP1 and BWP2 (as shown by the downward arrow in fig. 3), and after the measurement is completed by switching to BWP2, the terminal returns to BWP1 for measurement reporting (as shown by the upward arrow in fig. 3).

In the prior art measurement configuration, only the measurement resource of a certain BWP is usually included in the CSI resource configuration of the BWP. In the foregoing implementation 1 of the embodiment of the present invention, in the CSI resource configuration of the first BWP, the CSI measurement resource of the second BWP is configured, so as to establish a measurement relationship between the first BWP and the second BWP, and through this relationship, the terminal may determine that it is necessary to switch to the second BWP measurement before the measurement opportunity of the second BWP arrives when knowing that the first BWP is active, so that the cross-BWP measurement when the coverage levels of the two BWPs are different can be implemented, so that the terminal can measure the inactive BWP in time and send the measurement result to the base station, and the base station determines whether to trigger BWP handover.

Mode 2: the first configuration message is CSI reporting configuration corresponding to a first BWP, and the CSI reporting configuration corresponding to the first BWP is configured with CSI reporting configuration corresponding to a second BWP, where the CSI reporting configuration corresponding to the second BWP includes an index of CSI resource configuration of the second BWP, and the CSI resource configuration of the second BWP includes CSI measurement resources of the second BWP.

In the method 2, association is performed through CSI reporting configurations, and more than 2 CSI reporting configurations are associated, where each CSI reporting configuration corresponds to its own measurement BWP and reporting BWP, respectively. When the terminal works on BWP1, according to the time domain behavior of CSI reporting configuration 2 associated with CSI reporting configuration 1 of BWP1, the terminal is triggered to switch from BWP1 to BWP2 corresponding to CSI reporting configuration 2, and measurement of the switched BWP and switching back to BWP1 after reporting are realized. Fig. 4 shows an example of the measurement timing in the association manner, where BWP1 and BWP2 both have respective CSI measurement timing (as shown by the downward arrow in fig. 4) and reporting timing (as shown by the upward arrow in fig. 4), and after switching to BWP2 to complete measurement and reporting, the terminal returns to BWP 1.

In the measurement configuration of the prior art, a reporting configuration of a certain BWP (e.g., a first BWP) corresponds to a CSI measurement resource configuration of the first BWP, and in the implementation mode 2 in the embodiment of the present invention, by introducing a CSI reporting configuration of a second BWP (which includes the CSI measurement configuration of the second BWP) into the reporting configuration of the first BWP, a relationship between the measurement reporting of the first BWP and the measurement reporting of the second BWP may be established, so that when the first BWP is activated, the terminal can determine that it is necessary to switch to the second BWP for measurement before the measurement occasion of the second BWP arrives, and since the relevant reporting configuration that includes the second BWP at this time, the terminal may complete measurement on the second BWP and switch back to the first BWP after the second BWP realizes measurement. The advantage of this is that measurement and reporting in the same CSI reporting configuration are in the same BWP, which facilitates the timely reporting of measurement reports and the receiving process at the network side.

Mode 3: the first configuration message is CSI reporting configuration corresponding to a first BWP, where the CSI reporting configuration of the first BWP includes an index of CSI resource configuration of a second BWP, and the CSI resource configuration of the second BWP includes CSI measurement resources of the second BWP.

In the method 3, the CSI reporting configuration is associated with the CSI measurement resource (CSI resource) configuration of other BWPs. When the terminal works on BWP1, switching from BWP1 to BWP2 is triggered according to the time domain behavior configured by CSI resource on BWP1 configured by reporting to BWP1, and after the measurement is completed, switching back to BWP1 for measurement reporting. Fig. 5 shows an example of the measurement timing in the association manner, there is a CSI measurement timing on BWP2 (as shown by the downward arrow in fig. 5), and after the measurement is completed by switching to BWP2, the terminal returns to BWP1 for measurement reporting (as shown by the upward arrow in fig. 5).

In the existing measurement configuration, only the reporting configuration of the first BWP includes the measurement configuration corresponding to the first BWP. The above implementation mode 3 of the embodiment of the present invention has the following advantages: the measurement of the first BWP and the measurement of the second BWP are configured by using different CSI reporting configurations, so that the measurement of the first BWP is implemented in a manner similar to the conventional manner, and the measurement of the second BWP can be implemented by configuring one CSI reporting configuration of the first BWP, which includes the CSI measurement configuration of the second BWP. By making the terminal know that the reporting on the first BWP corresponds to the measurement on the second BWP, the terminal may switch to the second BWP measurement before the measurement occasion of the second BWP arrives, and then switch to the first BWP to complete the measurement reporting, thereby implementing a measurement reporting scheme that performs measurement on one BWP but reporting on another BWP.

Mode 4: the first configuration message includes IDs of the first BWP and the second BWP.

The method 4 directly configures a plurality of BWPs as a measurement association relationship, so that when any one of the BWPs is activated, BWP handover measurement is performed according to measurement resources or reporting configuration of other associated BWPs. In the method 4, associated BWPs, such as BWP1 and BWP2, may be directly configured through RRC signaling, which means that the two BWPs are associated with each other, so that the terminal may determine that, when one of the BWPs is activated, CSI measurement of the other BWP is performed according to a specific measurement occasion.

Referring to fig. 6, a measurement configuration method for BWP according to an embodiment of the present invention is applied to a network device on a network side, and includes:

step 61, the network device sends a first configuration message to the terminal, where the first configuration message is used to configure a measurement association relationship of at least two BWPs of the same cell, where the measurement association relationship refers to that, when an active BWP of the terminal is a first BWP, the terminal switches to a second BWP before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Here, the network device may specifically be a base station or an access device on the other radio access network side.

Through the above steps, the network device may configure a plurality of BWPs associated with each other for the terminal, so that the terminal may switch to the inactive BWP according to the configured association relationship before the measurement occasion of the inactive BWP arrives, and perform channel quality measurement when the measurement occasion of the inactive BWP arrives to obtain the signal quality of the inactive BWP. Therefore, the embodiment of the invention can perform measurement of other BWPs except active BWP under the condition of configuring channel measurement resources and reporting configuration per BWP, so as to obtain channel quality of other BWPs in time and provide reference information of channel quality for the terminal to switch between BWPs of different coverage levels.

In addition, the network device may further configure a time difference between an opportunity of the terminal to switch to measurement on the second BWP and a measurement opportunity of the second BWP; and/or configuring the timing for switching back to the first BWP after the terminal completes measurement on the second BWP.

Based on the method, the embodiment of the invention also provides equipment for implementing the method.

Referring to fig. 7, an embodiment of the present invention provides a terminal 70, including:

a receiving module 71, configured to receive a first configuration message sent by a network, where the first configuration message is used to configure a measurement association relationship between at least two BWPs in a same cell;

a measurement module 72, configured to, when an active BWP of the terminal is a first BWP, switch the terminal to a second BWP for measurement before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Optionally, the terminal further includes:

Referring to fig. 8, another structure of a terminal according to an embodiment of the present invention is shown, where the terminal 800 includes: a processor 801, a transceiver 802, a memory 803, a user interface 804 and a bus interface, wherein:

in this embodiment of the present invention, the terminal 800 further includes: a program stored on the memory 803 and executable on the processor 801, which when executed by the processor 801, performs the steps of: receiving a first configuration message sent by a network, wherein the first configuration message is used for configuring the measurement association relationship of at least two BWPs of the same cell; when the active BWP of the terminal is a first BWP, the terminal switches to a second BWP for measurement before the arrival of the measurement opportunity of the second BWP, wherein the first BWP is one BWP of the at least two BWPs, and the second BWP is the other BWP except the first BWP.

In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 801, and various circuits, represented by the memory 803, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 802 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 804 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.

Optionally, the program may further implement the following steps when executed by the processor 803: after the measurement is performed on the second BWP after switching to the second BWP, when the reporting configuration of the second BWP exists in the first configuration message and the CSI reporting resource is configured in the reporting configuration of the second BWP, the CSI reporting resource of the second BWP is used to send the measurement result on the second BWP, otherwise, the measurement result on the second BWP is switched back to the first BWP and the CSI reporting resource on the first BWP is used to send the measurement result on the second BWP.

Optionally, the program may further implement the following steps when executed by the processor 803: before the measurement opportunity of the second BWP is reached, judging whether the channel quality of the first BWP which is currently activated is lower than a preset quality threshold, and switching to the second BWP for measurement when the channel quality is lower than the preset quality threshold.

Referring to fig. 9, another schematic structural diagram of a network device 90 according to an embodiment of the present invention is provided, where the network device 90 includes:

a sending module 91, configured to send a first configuration message to a terminal, where the first configuration message is used to configure a measurement association relationship of at least two BWPs of the same cell, where the measurement association relationship refers to that, when an active BWP of the terminal is a first BWP, the terminal performs measurement on a second BWP before a measurement opportunity of the second BWP arrives, where the first BWP is one BWP of the at least two BWPs, and the second BWP is another BWP of the at least two BWPs except the first BWP.

Optionally, the sending module 91 is further configured to configure a time difference between a timing when the terminal switches to the second BWP for measurement and a measurement timing of the second BWP; and/or configuring the timing for switching back to the first BWP after the terminal completes measurement on the second BWP.

Referring to fig. 10, another schematic structural diagram of a network device according to an embodiment of the present invention includes: a processor 1001, a transceiver 1002, a memory 1003, and a bus interface, wherein:

in this embodiment of the present invention, the network device 1000 further includes: a program stored on the memory 1003 and executable on the processor 1001, which when executed by the processor 1001 performs the steps of:

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1001 is responsible for managing a bus architecture and general processes, and the memory 1003 may store data used by the processor 1001 in performing operations.

Optionally, when executed by the processor 1003, the program may further implement the following steps: configuring a time difference between the timing of switching the terminal to the second BWP for measurement and the timing of measurement of the second BWP; and/or configuring the timing for switching back to the first BWP after the terminal completes measurement on the second BWP.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or a part of the technical solution that substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the measurement configuration method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A measurement configuration method of a bandwidth part BWP is applied to a terminal, and is characterized by comprising the following steps:

2. The method of claim 1, wherein the first configuration message comprises configuration information of the first BWP and/or the second BWP, and wherein the configuration information comprises a channel state information, CSI, resource configuration and/or a CSI reporting configuration.

3. The method of claim 2, wherein the first configuration message is a CSI resource configuration for a first BWP having CSI measurement resources configured therein that correspond to a second BWP.

4. The method of claim 2, wherein the first configuration message is a CSI reporting configuration corresponding to a first BWP, and a CSI reporting configuration corresponding to a second BWP is configured in the CSI reporting configuration corresponding to the first BWP, wherein the CSI reporting configuration corresponding to the second BWP includes an index of a CSI resource configuration of the second BWP, and the CSI resource configuration of the second BWP includes a CSI measurement resource of the second BWP.

5. The method of claim 2, wherein the first configuration message is a CSI reporting configuration corresponding to a first BWP, and the CSI reporting configuration of the first BWP includes an index of a CSI resource configuration of a second BWP, and the CSI resource configuration of the second BWP includes a CSI measurement resource of the second BWP.

6. The method of claim 1, wherein the first configuration message includes an ID of the first BWP and the second BWP.

7. The method of claim 1, wherein after switching to the second BWP for the measurement, the method further comprises:

8. The method of claim 7, wherein an opportunity to switch back to the first BWP after completion of measurements on the second BWP is configured or predefined by a network.

9. The method of claim 1, wherein a time difference between an occasion to switch to measurement on the second BWP and a measurement occasion for the second BWP is configured or predefined by a network.

10. The method of claim 1, wherein the terminal switching to measurement on a second BWP before arrival of a measurement occasion for the second BWP comprises:

11. A measurement configuration method of bandwidth part BWP is applied to a network device, and is characterized by comprising the following steps:

and sending a first configuration message to a terminal, wherein the first configuration message is used for configuring a measurement association relationship of at least two BWPs of the same cell, and the association refers to that, when an active BWP of the terminal is a first BWP, the terminal performs measurement on a second BWP before a measurement opportunity of the second BWP arrives, where the first BWP is one of the at least two BWPs, and the second BWP is another BWP except the first BWP.

12. The method of claim 11, wherein the first configuration message comprises configuration information of the first BWP and/or the second BWP, and wherein the configuration information comprises a channel state information, CSI, resource configuration and/or a CSI reporting configuration.

13. The method of claim 12, wherein the first configuration message is a CSI resource configuration for a first BWP with a CSI measurement resource configured therein for a second BWP.

14. The method of claim 12, wherein the first configuration message is a CSI reporting configuration corresponding to a first BWP, and a CSI reporting configuration corresponding to a second BWP is configured in the CSI reporting configuration corresponding to the first BWP, wherein the CSI reporting configuration corresponding to the second BWP includes an index of a CSI resource configuration of the second BWP, and the CSI resource configuration of the second BWP includes a CSI measurement resource of the second BWP.

15. The method of claim 12, wherein the first configuration message is a CSI reporting configuration corresponding to a first BWP, and wherein the CSI reporting configuration of the first BWP includes an index of a CSI resource configuration of a second BWP, and wherein the CSI resource configuration of the second BWP includes a CSI measurement resource of the second BWP.

16. The method of claim 11, wherein the first configuration message includes an ID of the first BWP and the second BWP.

17. The method of claim 11, further comprising:

18. A terminal, comprising:

19. A terminal comprising a transceiver and a processor, wherein,

20. A terminal, comprising: processor, memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the measurement configuration method according to any one of claims 1 to 10.

21. A network device, comprising:

22. A network device comprising a transceiver and a processor, wherein,

23. A network device, comprising: processor, memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the measurement configuration method according to any one of claims 11 to 17.

24. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the measurement configuration method according to any one of claims 1 to 17.