CN110876149B

CN110876149B - Bandwidth part BWP access method, terminal and network equipment

Info

Publication number: CN110876149B
Application number: CN201810994238.9A
Authority: CN
Inventors: 董文佳; 王小旭
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: 2018-08-29
Filing date: 2018-08-29
Publication date: 2022-12-13
Anticipated expiration: 2038-08-29
Also published as: CN110876149A

Abstract

The invention provides an access method, a terminal and a network device of bandwidth part BWP, wherein the method comprises the following steps: when the terminal is in a Radio Resource Control (RRC) connection state and the current electric quantity is less than or equal to a preset electric quantity threshold value, starting a BWP configuration updating process; sending BWP configuration feedback information to the network equipment according to the current BWP configuration configured by the network equipment and BWP demand configuration corresponding to a preset electric quantity threshold value; and receiving the target BWP determined according to the BWP configuration feedback information sent by the network equipment, and accessing the target BWP. The invention can realize that the network device determines the BWP related configuration and the activated BWP more fully by the terminal information, so that the BWP configured by the network device more conforms to the state or the capability of the terminal, the flexibility of the BWP configuration is more fully utilized, the power consumption performance of the terminal is improved, and the user experience is ensured.

Description

Access method, terminal and network device for bandwidth part BWP

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an access method, a terminal, and a network device for BWP.

Background

The Third Generation Partnership Project (3 GPP) introduces BWP (Bandwidth Part) features for 5GNR (5 Generation New RAT), one of the purposes is to ensure that a small Bandwidth UE (User Equipment) can operate in a large system Bandwidth cell, and the other is to ensure that the UE uses different operating bandwidths in different states, thereby saving terminal power consumption. For example, in the low data period, the UE is enabled to listen to or transmit the control channel with a small bandwidth, and in the high data period, the UE is enabled to receive or transmit data with a large bandwidth.

Each BWP is formed by a segment of continuous PRB (physical resource block), and the corresponding bandwidth, frequency domain starting position, SCS (Sub-Channel Spacing, and CP (Cyclic Prefix) length can be flexibly configured. BWPs can be roughly divided into two types, one is initial access BWP, which is used for terminal initial access phase and when the terminal is in RRC (Radio Resource Control) idle state; the other is BWP configured in RRC connected state for the terminal in RRC connected state. The terminal obtains related Information of uplink/downlink initial access BWP by reading RMSI (Remaining Minimum System Information) of the cell, where the downlink initial access BWP is used to transmit SIB (System Information block) Information, paging message, and random access signaling Msg2/4, and the uplink initial access BWP is used to transmit random access uplink Information. The network can configure different BWPs (at most four for each UE) for different UEs, and relevant configuration Information of the BWPs is notified to the terminal through an RRC signaling sent by the network, but 3GPP Rel-15 defines that only 1 BWP can be activated at the same time, and outside the activated Downlink BWPs, the UE no longer receives PDSCH (Physical Downlink Shared Channel), PDCCH (Physical Downlink Control Channel), or CSI-RS (Channel State Information Reference Signal, channel State indication Reference Signal); outside the active Uplink BWP, the UE does not transmit PUCCH (Physical Uplink Control Channel) and PUSCH (Physical Uplink Shared Channel). In the connected state, if the UE configures a plurality of BWPs, the terminal performs BWP handover by parsing DCI (Downlink Control Information) indication in the PDCCH or by expiration of a BWP deactivation timer (BWP-inactivity timer). The deactivation timer is used to switch the currently active BWP to the default BWP, and is restarted when the PDCCH is successfully received on the active BWP, and if the timer expires, the terminal is switched to the default BWP.

In the existing BWP related mechanism of 5G NR, for initial access BWP and RRC connected BWP, both the related configuration information and the activation/deactivation procedure are decided and indicated to the terminal by the network, including: bandwidth, frequency domain starting position, SCS, CP length, deactivation timer duration, default BWP, and connected state activated BWP for each uplink/downlink BWP, etc. Although the 3GPP specification defines that the network can flexibly configure different BWPs for each UE, such configuration flexibility may increase the complexity of processing and scheduling for the network, so that the network may configure BWPs only for specific users (e.g. small bandwidth terminals or industry-specific terminals) and adopt the same BWP configuration for a large number of general users in the network, and even configure only one full bandwidth BWP in RRC connected state for scheduling convenience. This may cause the network configuration/active BWP to be mismatched with the terminal state, and especially for some terminals in special state, such as low battery terminals, the performance and user experience of the terminal may be seriously affected.

On the other hand, even if the network does not take into account the processing and scheduling complexity that may occur, there is currently no corresponding mechanism that allows the terminal to report relevant information to assist the network in determining the BWP configuration of the terminal, with respect to the flexibility of fully exploiting the BWP configuration. Among the existing UE wireless access capabilities defined by 3gpp ts38.306, the maximum bandwidth of uplink/downlink single CC (Component Carrier) supported by the terminal mainly affects BWP configuration. When the maximum bandwidth supported by the terminal is smaller than the system bandwidth of the network, the BWP configured by the network needs to consider that the maximum bandwidth supported by the terminal cannot be larger, so as to ensure that the low-bandwidth UE can operate in the large system bandwidth cell. But if the maximum bandwidth supported by the terminal is equal to the system bandwidth of the network, the wireless access capability of the UE cannot provide additional assistance information to help the network determine the BWP configuration. In addition, the UE Assistance Information (UE Assistance Information) introduced in 3gpp ts36.331 includes a terminal power consumption preference indication (power PrefIndication) for indicating that the terminal prefers low power consumption or normal power consumption, but the limited Information amount still cannot clearly inform the network which BWP is configured/activated can better match the terminal state and capability, which is helpful to improve the terminal power consumption performance.

Disclosure of Invention

Embodiments of the present invention provide an access method, a terminal, and a network device for BWP in a bandwidth portion, so as to solve the problems in the prior art that processing complexity is increased for flexible BWP configuration for a terminal, the performance and user experience of the terminal are affected due to mismatch between the BWP and the terminal state in a network configuration/activation unification, and the power consumption performance of the terminal cannot be improved because the BWP effectively matched with the terminal cannot be determined due to limited information amount carried by terminal auxiliary information.

The embodiment of the invention provides an access method of bandwidth part BWP, which is applied to a terminal and comprises the following steps:

when the terminal is in a Radio Resource Control (RRC) connection state and the current electric quantity is less than or equal to a preset electric quantity threshold value, starting a BWP configuration updating process;

sending BWP configuration feedback information to the network device according to the current BWP configuration configured by the network device and BWP demand configuration corresponding to the preset electric quantity threshold value;

and receiving the target BWP which is sent by the network equipment and determined according to the BWP configuration feedback information, and accessing the target BWP.

Preferably, the method further comprises:

the corresponding relation between at least one preset electric quantity threshold value and the corresponding BWP requirement configuration is preset.

Preferably, a corresponding relation between at least two preset electric quantity threshold values and corresponding BWP demand configurations is preset; wherein,

when the terminal is in an RRC connected state and the current electric quantity is less than or equal to a preset electric quantity threshold value, starting a BWP configuration updating process, comprising the following steps:

and when the terminal is in an RRC connected state and the current electric quantity is less than or equal to each preset electric quantity threshold value, starting a BWP configuration updating process.

Preferably, the BWP demand configuration includes a demand operating bandwidth occupied by BWP and a demand value of the BWP deactivation timer.

Preferably, the method further comprises:

and when a low-power mode that the set power input by the user is lower than the preset power threshold value is received, determining that the current power is less than or equal to the preset power threshold value.

Preferably, the step of sending BWP configuration feedback information to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold value includes:

comparing the current BWP configuration with a BWP demand configuration corresponding to the preset electric quantity threshold value, and judging whether the current BWP configuration is in accordance with the BWP demand configuration corresponding to the preset electric quantity threshold value;

when the current BWP configuration conforms to the preset BWP requirement configuration corresponding to the preset electric quantity threshold, determining that the BWP configuration feedback information includes a BWP identification number conforming to the BWP requirement configuration corresponding to the preset electric quantity threshold;

when the current BWP configuration does not accord with the BWP demand configuration corresponding to the preset electric quantity threshold value, determining that the BWP configuration feedback information comprises the BWP demand configuration corresponding to the current preset electric quantity threshold value;

and sending the BWP configuration feedback information to the network equipment.

Preferably, the step of sending BWP configuration feedback information to the network device includes:

sending the BWP configuration feedback information to the network equipment through terminal auxiliary information; or

Sending the BWP configuration feedback information to the network equipment through an RRC reconfiguration complete message; or

And sending the BWP configuration feedback information to the network equipment through defined independent uplink signaling.

Preferably, the step of determining whether the current BWP configuration conforms to the BWP requirement configuration corresponding to the preset electric quantity threshold includes:

if the frequency domain bandwidth corresponding to at least part of the BWPs configured by the network device is less than or equal to the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and the BWP deactivation timer configured by the network device has a duration less than or equal to the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, determining that the current BWP configuration matches the BWP requirement configuration corresponding to the preset electric quantity threshold value;

if the frequency domain bandwidth corresponding to all BWPs configured by the network device is greater than the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and/or the duration of the BWP deactivation timer configured by the network device is greater than the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, determining that the current BWP configuration does not match the BWP requirement configuration corresponding to the preset electric quantity threshold value.

Preferably, before or after the BWP configuration update procedure is started, the method further includes:

and receiving the RRC reconfiguration message which is sent by the network equipment and contains the current BWP configuration.

The embodiment of the invention also provides an access method of the bandwidth part BWP, which is applied to network equipment, and the method comprises the following steps:

receiving BWP configuration feedback information sent by a terminal after starting a BWP configuration updating process;

and determining a target BWP according to the BWP configuration feedback information, and sending the target BWP to the terminal.

Preferably, the step of sending the BWP configuration feedback information after the receiving terminal starts the BWP configuration update procedure includes:

receiving the BWP configuration feedback information sent by the terminal through terminal auxiliary information; or

Receiving the BWP configuration feedback information sent by the terminal through a Radio Resource Control (RRC) reconfiguration completion message; or

And receiving the BWP configuration feedback information sent by the independent uplink signaling defined by the terminal.

Preferably, the step of the BWP configuration feedback information sent by the receiving terminal after the BWP configuration update procedure is started includes:

receiving a BWP identification number included in the BWP configuration feedback information;

the BWP corresponding to the BWP identification number is one of the BWPs configured by the network device for the terminal.

Preferably, the step of determining a target BWP according to the BWP configuration feedback information includes:

determining the BWP corresponding to the BWP identification number as the target BWP.

receiving BWP demand configuration included in the BWP configuration feedback information;

wherein the BWP demand configuration includes a demanded operating bandwidth occupied by BWP and a demand value for the BWP deactivation timer.

when the terminal has a data scheduling requirement, determining a relation between a first bandwidth occupied by resources allocated by a current data scheduling plan and a required working bandwidth occupied by the BWP in the BWP configuration feedback information according to the channel quality, the service requirement, the data volume and the scheduling strategy of the terminal;

if the first bandwidth is less than or equal to the required working bandwidth occupied by the BWP in the BWP configuration feedback information, determining the BWP corresponding to the required working bandwidth occupied by the BWP in the BWP configuration feedback information as the target BWP;

if the first bandwidth is larger than the required working bandwidth occupied by the BWP in the BWP configuration feedback information, determining the target BWP according to a relationship between the first bandwidth, the required working bandwidth occupied by the BWP in the BWP configuration feedback information, and a second bandwidth, where the second bandwidth is a frequency domain bandwidth of the BWP in the BWP configuration that is larger than and closest to the first bandwidth.

Preferably, the step of determining the target BWP according to the relationship between the first bandwidth, the required operating bandwidth occupied by the BWP in the BWP configuration feedback information, and the second bandwidth includes:

calculating the ratio of the required working bandwidth occupied by the BWP in the BWP configuration feedback information to the first bandwidth to obtain a first reference value;

calculating the ratio of the first bandwidth to the second bandwidth to obtain a second reference value;

if the first reference value is greater than or equal to a first bandwidth proportion threshold value and the second reference value is less than a second bandwidth proportion threshold value, determining that the BWP corresponding to the BWP occupied required working bandwidth in the BWP configuration feedback information is the target BWP;

if the first reference value is greater than or equal to a first bandwidth proportion threshold value and the second reference value is greater than or equal to a second bandwidth proportion threshold value, determining the BWP corresponding to the second bandwidth as the target BWP;

and if the first reference value is smaller than a first bandwidth ratio threshold value, determining the BWP corresponding to the second bandwidth as the target BWP.

Preferably, after receiving the BWP demand configuration included in the BWP configuration feedback information, the method further includes:

detecting whether at least one of frequency domain bandwidths corresponding to all BWPs configured by the network device, a duration of a BWP deactivation timer configured by the network device, and a default BWP conforms to a BWP requirement configuration in the BWP configuration feedback information;

and if not, sending the updated BWP configuration to the terminal through a Radio Resource Control (RRC) reconfiguration message.

The embodiment of the invention provides a terminal, which comprises a processor and a transceiver, wherein the processor is used for:

controlling the transceiver to send BWP configuration feedback information to the network device according to the current BWP configuration configured by the network device and BWP demand configuration corresponding to the preset electric quantity threshold value;

and controlling the transceiver to receive the target BWP which is sent by the network device and determined according to the BWP configuration feedback information, and accessing the target BWP.

Preferably, the processor is further configured to:

Preferably, the processor is further configured to: presetting a corresponding relation between at least two preset electric quantity thresholds and corresponding BWP (bwpeer) demand configuration; wherein,

in the process of starting the BWP configuration update procedure when the terminal is in the RRC connected state and the current electric quantity is less than or equal to the preset electric quantity threshold value, the processor is further configured to:

Preferably, the processor is further configured to:

and when the transceiver receives a low-power mode that the set power input by the user is lower than the preset power threshold value, determining that the current power is less than or equal to the preset power threshold value.

Preferably, when the BWP configuration feedback information is sent to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold, the processor is further configured to:

when the current BWP configuration conforms to the preset BWP demand configuration corresponding to the preset electric quantity threshold value, determining that the BWP configuration feedback information includes a BWP identification number conforming to the BWP demand configuration corresponding to the current preset electric quantity threshold value;

controlling the transceiver to transmit BWP configuration feedback information to the network device.

Preferably, when the BWP configuration feedback information is sent to the network device, the transceiver is further configured to:

Sending the BWP configuration feedback information to the network equipment through an RRC reconfiguration completion message; or

Preferably, when determining whether the current BWP configuration conforms to the BWP requirement configuration corresponding to the preset electric quantity threshold, the processor is further configured to:

Preferably, before or after the BWP configuration update procedure is initiated, the transceiver is further configured to:

An embodiment of the present invention provides a network device, including a processor and a transceiver, where the transceiver is configured to:

the processor is configured to determine a target BWP according to the BWP configuration feedback information, and control the transceiver to transmit the target BWP to the terminal.

Preferably, when the receiving terminal starts the BWP configuration feedback information sent after the BWP configuration update procedure, the transceiver is configured to:

Preferably, when determining a target BWP according to the BWP configuration feedback information, the processor is configured to:

wherein the BWP demand configuration includes a demanded operating bandwidth occupied by BWP and a demand value of a BWP deactivation timer.

Preferably, when determining the target BWP according to the relationship between the first bandwidth, the required operating bandwidth occupied by the BWP in the BWP configuration feedback information, and the second bandwidth, the processor is configured to:

Preferably, after receiving the BWP demand configuration included in the BWP configuration feedback information, the processor is further configured to:

and if not, controlling the transceiver to send the updated BWP configuration to the terminal through a Radio Resource Control (RRC) reconfiguration message.

The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; the processor implements the steps in the above-described access method of the bandwidth part BWP on the terminal side when executing the program.

The embodiment of the invention also provides network equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; when the processor executes the program, the steps in the above-mentioned access method for the bandwidth portion BWP on the network device side are implemented.

An embodiment of the present invention is a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps in the above-mentioned method for accessing the bandwidth portion BWP on the terminal side or the network device side.

After the terminal starts the update flow of BWP configuration, based on the current BWP configuration and the preset current corresponding BWP demand configuration, the BWP configuration feedback information is sent to the network device, the network device determines the target BWP based on the BWP configuration feedback information, the network device can determine the BWP related configuration and activated BWP more sufficiently by means of the terminal information, so that the BWP configured by the network device better conforms to the state or capability of the terminal, the flexibility of the BWP configuration is more sufficiently utilized, the power consumption performance of the terminal is improved, the user experience is ensured, meanwhile, the network device does not need to configure BWP individually for all terminals in a cell, only configures BWP individually for the terminals with special states, the processing and scheduling complexity of the network device is not excessively increased, meanwhile, the terminals with special demands in the cell can be provided, and good user experience is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a diagram illustrating a first access method of a bandwidth portion BWP on a terminal side according to an embodiment of the present invention;

fig. 2 is a diagram illustrating a second method for accessing a bandwidth portion BWP on a terminal side according to an embodiment of the present invention;

fig. 3 is a diagram illustrating a third method for accessing the bandwidth portion BWP on the terminal side according to the embodiment of the present invention;

fig. 4 is a diagram illustrating a first access method of a bandwidth portion BWP on a network device side according to an embodiment of the present invention;

fig. 5 is a diagram illustrating a second access method of a bandwidth portion BWP on a network device side according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating an implementation structure of a terminal according to an embodiment of the present invention;

FIG. 7 is a diagram of a network device according to an embodiment of the present invention;

FIG. 8 is a diagram of a second implementation structure of the terminal according to the embodiment of the invention;

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the present invention provides an access method for BWP in a bandwidth segment, which is applied to a terminal, and as shown in fig. 1, the method includes:

step 101, when the terminal is in a radio resource control RRC connected state and the current electric quantity is less than or equal to a preset electric quantity threshold value, a BWP configuration update procedure is started.

The embodiment of the invention is applied to a scene that the terminal enters the RRC connection state, and at this time, the terminal can obtain the relevant configuration information of the BWP in the connection state through RRC signaling, such as the number of BWPs configured for the terminal by the network device, the frequency domain starting position and bandwidth corresponding to each BWP, the time length of a BWP deactivation timer, default BWP and the like.

When the terminal is in the RRC connected state, the terminal may use its own power as a judgment basis for starting the BWP configuration update procedure. When the current power remaining in the terminal is less than or equal to the preset power threshold, the terminal may start a BWP configuration update procedure.

The preset electric quantity threshold value is preset by the terminal according to the requirement, wherein the terminal can set at least one preset electric quantity threshold value and preset the corresponding relation between the at least one preset electric quantity threshold value and the corresponding BWP requirement configuration. Certainly, the terminal may also set at least two preset electric quantity thresholds, and preset a corresponding relationship between the at least two preset electric quantity thresholds and the corresponding BWP demand configuration; when the terminal is in an RRC connected state and the current electric quantity is less than or equal to a preset electric quantity threshold value, the step of starting the BWP configuration update procedure includes: when the terminal is in the RRC connected state and the current electric quantity is less than or equal to each preset electric quantity threshold value, a BWP configuration update procedure is started.

For example, two preset electric quantity threshold values corresponding to the terminal are P1 and P2, a value of P1 is 20%, and a value of P2 is 40%, then when the electric quantity of the terminal is less than or equal to 40%, the BWP configuration update process may be started, and when the electric quantity of the terminal is less than or equal to 20%, the BWP configuration update process may also be started.

Meanwhile, each preset electric quantity threshold value corresponds to a BWP demand configuration, where the BWP demand configuration includes a demanded working bandwidth occupied by the BWP and a demanded value of the BWP deactivation timer, but is not limited thereto. For example: two preset electric quantity threshold values corresponding to the terminal are P1 (20%) and P2 (40%), a required working bandwidth occupied by BWP corresponding to P1 is not more than 20MHz, and a required value of a BWP deactivation timer is not more than 30ms; the required operating bandwidth occupied by BWP for P2 is no more than 50mhz and the required value of the BWP deactivation timer is no more than 60ms.

The number of preset electric quantity threshold values, the value of each electric quantity threshold, the required working bandwidth occupied by the BWP corresponding to each electric quantity threshold and the required value of the BWP deactivation timer need to be determined according to the processing capability of each terminal, the power consumption level, the power consumption optimization strategy and other factors.

The embodiment of the present invention further provides a preferable scheme, and when a low power mode in which a set power input by a user is lower than a preset power threshold is received, it is determined that the current power is less than or equal to the preset power threshold.

That is, on the basis that the terminal can use its own power as the basis for determining to start the BWP configuration update process, the terminal can support the BWP configuration update process by manually starting the low power mode (power saving mode). At this time, the BWP configuration update may be triggered according to the user's requirement, without triggering the BWP configuration update when the actual power of the terminal meets the requirement.

Step 102, sending BWP configuration feedback information to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold.

After the terminal starts the BWP configuration update flow, the terminal needs to determine information that the terminal needs to feed back to the network device according to the BWP information (current BWP configuration) configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold.

The method specifically comprises the following steps: the method for sending the BWP configuration feedback information to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold value comprises the following steps:

comparing the current BWP configuration with a BWP demand configuration corresponding to a preset electric quantity threshold value, and judging whether the current BWP configuration is in accordance with the BWP demand configuration corresponding to the preset electric quantity threshold value; when the current BWP configuration is consistent with the BWP demand configuration corresponding to the preset electric quantity threshold value, determining that the BWP configuration feedback information comprises a BWP identification number of the BWP demand configuration corresponding to the current preset electric quantity threshold value; when the current BWP configuration does not accord with the BWP demand configuration corresponding to the preset electric quantity threshold value, determining that the BWP configuration feedback information comprises the BWP demand configuration corresponding to the current preset electric quantity threshold value; and sending the BWP configuration feedback information to the network device.

Firstly, the terminal needs to determine a corresponding preset electric quantity threshold value according to the current electric quantity, determine a BWP demand configuration corresponding to the preset electric quantity threshold value, compare the current BWP demand configuration with the BWP demand configuration corresponding to the preset electric quantity threshold value, and judge whether the two meet each other according to the comparison result. If the two are in accordance, determining that the BWP configuration feedback information sent to the network device should include a BWP identification number corresponding to the BWP requirement configuration corresponding to the current preset electric quantity threshold; if the two are not in accordance, determining that the BWP configuration feedback information sent to the network device should include the BWP requirement configuration corresponding to the current preset electric quantity threshold, where the BWP requirement configuration corresponding to the current preset electric quantity threshold should include: the required operating bandwidth occupied by BWP and the required value of the BWP deactivation timer.

After determining the content included in the BWP configuration feedback information transmitted to the network device according to the comparison result, the BWP configuration feedback information may be transmitted to the network device.

In the implementation process, the step of sending the BWP configuration feedback information to the network device includes:

sending the BWP configuration feedback information to the network equipment through the terminal auxiliary information; or sending the BWP configuration feedback information to the network equipment through an RRC reconfiguration complete message; or sending the BWP configuration feedback information to the network device through defined independent uplink signaling.

When the terminal sends the BWP configuration feedback information to the network device, an uplink signaling may be defined to indicate the BWP requirement configuration of the terminal at this time, and the uplink signaling may include 3 fields, which respectively correspond to the BWP identification number field, the BWP required working bandwidth field, and the recommended value field of the timer duration.

The uplink signaling may be terminal assistance information, when the current BWP configuration conforms to the BWP requirement configuration corresponding to the preset electric quantity threshold, a BWP identification number field in the uplink signaling sent by the terminal to the network device carries a BWP identification number meeting the BWP requirement configuration, when the current BWP configuration does not conform to the BWP requirement configuration corresponding to the preset electric quantity threshold, a BWP required working bandwidth field in the uplink signaling sent by the terminal to the network device carries a required working bandwidth occupied by the BWP meeting the BWP requirement configuration, and a recommended value field of the timer duration carries a required value of the BWP deactivation timer meeting the BWP requirement configuration.

When the uplink signaling is the terminal auxiliary information, 3 fields may be directly added to the terminal auxiliary information, or 3 fields may be added to the terminal power consumption preference indication of the terminal auxiliary information. According to different results of comparison between the current BWP configuration and the BWP demand configuration corresponding to the preset electric quantity threshold, the information carried in the 3 fields is different, when the current BWP configuration matches the BWP demand configuration corresponding to the preset electric quantity threshold, the information carried in the BWP identification number field, and when the current BWP configuration does not match the BWP demand configuration corresponding to the preset electric quantity threshold, the information carried in the BWP demand working bandwidth field and the recommended value field of the timer duration.

The uplink signaling may be an RRC reconfiguration complete message, and when the uplink signaling is the RRC reconfiguration complete message, the BWP configuration feedback information may be sent through the RRC reconfiguration complete message, where the RRC reconfiguration complete message includes 3 fields.

When the terminal sends the BWP configuration feedback information to the network device, an independent uplink signaling may be defined, and the BWP configuration feedback information is sent to the network device through the independent uplink signaling, where the independent uplink signaling may include 3 fields.

In the foregoing embodiment of the present invention, the step of determining whether the current BWP configuration matches the BWP requirement configuration corresponding to the preset threshold value of electric quantity includes:

if the frequency domain bandwidth corresponding to at least part of the BWPs configured by the network device is less than or equal to the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and the BWP deactivation timer configured by the network device has a duration less than or equal to the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, determining that the current BWP configuration conforms to the BWP requirement configuration corresponding to the preset electric quantity threshold value;

if the frequency domain bandwidth corresponding to all the BWPs configured by the network device is greater than the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and/or the duration of the BWP deactivation timer configured by the network device is greater than the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, it is determined that the current BWP configuration does not match the BWP requirement configuration corresponding to the preset electric quantity threshold value.

When judging whether the current BWP configuration conforms to the BWP demand configuration corresponding to the preset electric quantity threshold, the corresponding method is as follows: comparing the frequency domain bandwidth corresponding to all or part of the BWPs in 1 or more BWPs configured by the network device for the terminal with the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and comparing the duration of the BWP deactivation timer configured by the network device with the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal.

If the frequency domain bandwidth corresponding to at least part of the BWPs configured by the network device is less than or equal to the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and the BWP deactivation timer configured by the network device has a duration less than or equal to the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, it may be determined that the current BWP configuration conforms to the BWP requirement configuration corresponding to the preset electric quantity threshold value.

If the frequency domain bandwidth corresponding to all (1 or more) BWPs configured by the network device is greater than the required working bandwidth occupied by the BWPs in the BWP demand configuration corresponding to the preset electric quantity threshold value of the terminal, and/or the duration of the BWP deactivation timer configured by the network device is greater than the required value of the BWP deactivation timer in the BWP demand configuration corresponding to the preset electric quantity threshold value of the terminal, it is determined that the current BWP configuration does not match the BWP demand configuration corresponding to the preset electric quantity threshold value.

In the embodiment of the present invention, when the current BWP configuration does not match the BWP demand configuration corresponding to the preset electric-quantity threshold, the frequency-domain bandwidth corresponding to the BWP configured by the network device may be smaller than or equal to the demanded working bandwidth occupied by the BWP carried in the BWP configuration feedback information, and the duration of the BWP deactivation timer configured by the network device may be smaller than or equal to the demanded value of the BWP deactivation timer carried in the BWP configuration feedback information. That is, the required working bandwidth occupied by the BWP carried in the BWP configuration feedback information may be an upper limit value of the frequency domain bandwidth corresponding to the BWP configured by the network device, and the required value of the BWP deactivation timer carried in the BWP configuration feedback information may be an upper limit value of the duration of the BWP deactivation timer configured by the network device. Of course, this is only one case of the relationship between the frequency domain bandwidth corresponding to the BWP configured by the network device and the frequency domain bandwidth recommended by the terminal, and the relationship between the two is not limited to this, and the relationship between the BWP deactivation timer duration configured by the corresponding network device and the required value of the BWP deactivation timer recommended by the terminal is also not limited to this.

Step 103, receiving the target BWP determined according to the BWP configuration feedback information sent by the network device, and accessing the target BWP.

After transmitting the BWP configuration feedback information to the network device, the target BWP may be determined by the network device according to the received BWP configuration feedback information, and the determined target BWP may be transmitted to the terminal. The terminal executes an access procedure after receiving the target BWP sent by the network device. The BWP configured by the network equipment better conforms to the state or the capability of the terminal, and the power consumption performance of the terminal can be improved and the user experience is ensured by fully utilizing the flexibility of the BWP configuration.

In this embodiment of the present invention, before or after the BWP configuration update procedure is started, the method further includes:

The terminal may receive an RRC reconfiguration message containing a current BWP configuration sent by the network device before starting the BWP configuration update procedure; the terminal may also receive an RRC reconfiguration message containing the current BWP configuration sent by the network device after initiating the BWP configuration update procedure.

If the terminal receives an RRC reconfiguration message sent by the network device after starting the BWP configuration update procedure, the terminal may directly report BWP configuration feedback information in an RRC reconfiguration complete message; if the terminal receives the RRC reconfiguration message first and then starts the BWP configuration update procedure, the terminal may report BWP configuration feedback information in the terminal assistance information at this time.

For an embodiment in which the terminal receives an RRC reconfiguration message containing a current BWP configuration sent by the network device before starting the BWP configuration update procedure, refer to the procedure in fig. 2:

step 201, the terminal sets one or more preset electric quantity thresholds, and sets a corresponding relationship between each preset electric quantity threshold and the BWP demand configuration.

Step 202, receiving an RRC reconfiguration message containing BWP configuration sent by the network device.

Step 203, when the power of the terminal is less than or equal to the preset power threshold or the terminal is in the low power mode, starting a BWP configuration updating process.

Step 204, determining whether the current BWP configuration conforms to the BWP requirement configuration corresponding to the preset electric quantity threshold.

Step 205, sending the BWP configuration feedback information to the network device according to the determination result.

For this case, when the terminal transmits the BWP configuration feedback information to the network device, the BWP configuration feedback information may be transmitted through the terminal assistance information.

For an embodiment in which the terminal receives an RRC reconfiguration message containing a current BWP configuration sent by the network device after starting the BWP configuration update procedure, refer to the procedure in fig. 3:

step 301, the terminal sets one or more preset electric quantity thresholds, and sets a corresponding relationship between each preset electric quantity threshold and the BWP demand configuration.

Step 302, when the power of the terminal is less than or equal to the preset power threshold or the terminal is in the low power mode, starting a BWP configuration updating process.

Step 303, receiving an RRC reconfiguration message containing BWP configuration sent by the network device.

Step 304, determining whether the current BWP configuration matches the BWP requirement configuration corresponding to the preset threshold value of electric energy.

And 305, sending the BWP configuration feedback information to the network equipment according to the judgment result.

For this case, when the terminal sends the BWP configuration feedback information to the network device, the BWP configuration feedback information may be sent through an RRC reconfiguration complete message.

According to the access method of the bandwidth part BWP applied to the terminal side provided by the embodiment of the present invention, after the terminal starts the BWP configuration update flow, the BWP configuration feedback information is sent to the network device according to the current BWP configuration and the preset current corresponding BWP requirement configuration, and the network device determines the target BWP according to the BWP configuration feedback information, so that the network device can determine the BWP related configuration and the activated BWP more sufficiently by using the terminal information, so that the BWP configured by the network device better conforms to the state or capability of the terminal, the flexibility of the BWP configuration is more sufficiently utilized, the power consumption performance of the terminal is improved, and the user experience is ensured. Meanwhile, the network device does not need to configure the BWP for all terminals in the cell independently, and only configures the BWP for the terminal with a special state independently, so that the processing and scheduling complexity of the network device is not increased excessively, meanwhile, the terminal with special requirements in the cell can be considered, and good user experience is guaranteed.

An embodiment of the present invention provides an access method for BWP in a bandwidth segment, which is applied to a network device, and as shown in fig. 4, the method includes:

step 401, receiving BWP configuration feedback information sent by the terminal after starting the BWP configuration update flow.

The network device may receive BWP configuration feedback information sent by the terminal after the terminal starts the BWP configuration update procedure. For the terminal, when the RRC connection state and the current electric quantity is less than or equal to the preset electric quantity threshold, the BWP configuration update procedure is started, and BWP configuration feedback information is determined according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold, and then the BWP configuration feedback information is sent to the network device. The terminal may set a correspondence between at least one preset electric quantity threshold and the corresponding BWP demand configuration, and start a BWP configuration update procedure when the current electric quantity of the terminal is less than or equal to each preset electric quantity threshold.

In this embodiment of the present invention, the step of receiving BWP configuration feedback information sent by a terminal after starting a BWP configuration update procedure includes: receiving BWP configuration feedback information sent by a terminal through terminal auxiliary information; or receiving BWP configuration feedback information sent by the terminal through a radio resource control RRC reconfiguration completion message; or receiving BWP configuration feedback information sent through independent uplink signaling defined by the terminal.

The network device may receive BWP configuration feedback information sent by the terminal through the terminal assistance information or through the RRC reconfiguration complete message when receiving the BWP configuration feedback information. The process of receiving BWP configuration feedback information by the network device through the terminal auxiliary information reception or through the RRC reconfiguration complete message may be regarded as a process of receiving an uplink signaling defined by the terminal, where the uplink signaling defined by the terminal may include 3 fields, which respectively correspond to the BWP identification number field, the BWP required operating bandwidth field, and the recommended value field of the timer duration.

The uplink signaling received by the network device may be terminal auxiliary information, and when the uplink signaling is the terminal auxiliary information, 3 fields may be directly added to the terminal auxiliary information, or 3 fields may be added to the terminal power consumption preference indication of the terminal auxiliary information. According to different results of comparison between the current BWP configuration and the BWP demand configuration corresponding to the preset electric quantity threshold, the situations of information carried in the 3 fields of the uplink signaling are different, when the current BWP configuration matches the BWP demand configuration corresponding to the preset electric quantity threshold, the BWP identification number field carries information, and when the current BWP configuration does not match the BWP demand configuration corresponding to the preset electric quantity threshold, the BWP demand working bandwidth field and the recommended value field of the timer duration carry information.

The uplink signaling received by the network device may also be an RRC reconfiguration complete message, where the RRC reconfiguration complete message may carry 3 fields. And according to different results of comparison between the current BWP configuration and the BWP requirement configuration corresponding to the preset electric quantity threshold, the situations of information carried in the 3 fields of the uplink signaling are different.

On the other hand, the network device may further receive an independent uplink signaling defined by the terminal, and the network device may obtain the BWP configuration feedback information by receiving the independent uplink signaling sent by the terminal, where the independent uplink signaling may include 3 fields.

In this embodiment of the present invention, the step of receiving BWP configuration feedback information sent by a terminal after starting a BWP configuration update flow includes: receiving a BWP identification number included in the BWP configuration feedback information; the BWP corresponding to the BWP identification number is one of the BWPs configured by the network device for the terminal.

Before sending the BWP configuration feedback information to the network device, the terminal needs to determine whether the current BWP configuration matches the BWP requirement configuration corresponding to the preset electric quantity threshold, and according to whether the current BWP configuration matches the preset electric quantity threshold, the terminal may include different contents in the BWP configuration feedback information. If the BWP configuration feedback information and the BWP identification number match, the BWP configuration feedback information sent by the terminal to the network device includes the BWP identification number, and after receiving the BWP configuration feedback information, the network device may obtain the BWP identification number included in the BWP configuration feedback information, where the BWP corresponding to the BWP identification number is a type of BWP configured by the network device for the terminal.

In this embodiment of the present invention, the step of receiving BWP configuration feedback information sent by the terminal after starting the BWP configuration update flow further includes: receiving BWP demand configuration included in the BWP configuration feedback information; wherein the BWP demand configuration includes a demanded operating bandwidth occupied by BWP and a demand value of the BWP deactivation timer.

Before sending the BWP configuration feedback information to the network device, the terminal needs to determine whether the current BWP configuration matches the BWP requirement configuration corresponding to the preset electric quantity threshold, and according to whether the current BWP configuration matches the preset electric quantity threshold, the terminal may include different contents in the BWP configuration feedback information. If the BWP configuration feedback information and the BWP demand configuration do not match, the BWP configuration feedback information sent by the terminal to the network device includes the BWP demand configuration, and after receiving the BWP configuration feedback information, the network device may obtain the BWP demand configuration included in the BWP configuration feedback information, where the BWP demand configuration includes the demanded working bandwidth occupied by BWP and the demanded value of the BWP deactivation timer.

Step 402, determining the target BWP according to the BWP configuration feedback information, and sending the target BWP to the terminal.

The network device may determine a target BWP to be accessed by the terminal according to the received BWP configuration feedback information after receiving the BWP configuration feedback information transmitted by the terminal, and may transmit the determined target BWP to the terminal after determining the target BWP to be accessed by the terminal.

Wherein the target BWP may be determined in different ways depending on different contents contained in the received BWP configuration feedback information.

When the receiving terminal starts the BWP configuration feedback information sent after the BWP configuration update procedure, if the received BWP configuration feedback information includes the BWP identification number, the step of determining the target BWP according to the BWP configuration feedback information includes: the BWP corresponding to the BWP identification number is determined as the target BWP.

If the BWP configuration feedback information received by the network device includes the BWP identification number, the target BWP may be determined according to the BWP identification number, that is, the BWP corresponding to the BWP identification number is determined as the target BWP accessed by the terminal.

When the BWP configuration feedback information sent by the receiving terminal after starting the BWP configuration update flow, if the received BWP configuration feedback information includes the BWP required configuration, the step of determining the target BWP according to the BWP configuration feedback information includes:

when a terminal has a data scheduling requirement, determining the relationship between a first bandwidth occupied by resources allocated by a current data scheduling plan and a required working bandwidth occupied by BWP in BWP configuration feedback information according to the channel quality, the service requirement, the data volume and a scheduling strategy of the terminal; if the first bandwidth is smaller than or equal to the required working bandwidth occupied by the BWP in the BWP configuration feedback information, determining the BWP corresponding to the required working bandwidth occupied by the BWP in the BWP configuration feedback information as the target BWP; if the first bandwidth is larger than the required working bandwidth occupied by the BWP in the BWP configuration feedback information, determining the target BWP according to a relationship between the first bandwidth, the required working bandwidth occupied by the BWP in the BWP configuration feedback information, and a second bandwidth, wherein the second bandwidth is a frequency domain bandwidth of the BWP in the BWP configuration that is larger than and closest to the first bandwidth.

When the terminal has a data scheduling requirement, the network device may determine, according to factors such as channel quality, service requirement, data volume, and scheduling policy of the terminal, a relationship between a first bandwidth occupied by resources allocated by the data scheduling plan and a required working bandwidth occupied by the BWP in the BWP configuration feedback information.

If the first bandwidth occupied by the resource allocated by the data scheduling plan is less than or equal to the required working bandwidth occupied by the BWP in the BWP configuration feedback information, the network device determines that the BWP corresponding to the required working bandwidth occupied by the BWP in the BWP configuration feedback information is the target BWP, and activates the target BWP during the scheduling.

If the first bandwidth occupied by the resource allocated by the data scheduling plan is larger than the required working bandwidth occupied by the BWP in the BWP configuration feedback information, the network device needs to determine the target BWP by combining the relationship between the first bandwidth (denoted as X) occupied by the resource allocated by the plan, the required working bandwidth (denoted as Y) occupied by the BWP in the BWP configuration feedback information, and the second bandwidth (frequency domain bandwidth of the BWP that is larger than and closest to the first bandwidth occupied by the resource allocated by the plan in the existing BWP configuration, denoted as Z).

Wherein, the step of determining the target BWP according to the relationship between the first bandwidth, the required working bandwidth occupied by the BWP in the BWP configuration feedback information, and the second bandwidth comprises:

calculating the ratio of the required working bandwidth occupied by the BWP in the BWP configuration feedback information to the first bandwidth to obtain a first reference value; calculating the ratio of the first bandwidth to the second bandwidth to obtain a second reference value; if the first reference value is greater than or equal to the first bandwidth proportion threshold value and the second reference value is less than the second bandwidth proportion threshold value, determining that the BWP corresponding to the BWP occupying the required working bandwidth in the BWP configuration feedback information is the target BWP; if the first reference value is greater than or equal to the first bandwidth proportion threshold value and the second reference value is greater than or equal to the second bandwidth proportion threshold value, determining the BWP corresponding to the second bandwidth as a target BWP; and if the first reference value is smaller than the first bandwidth ratio threshold value, determining the BWP corresponding to the second bandwidth as the target BWP.

Firstly, the network device sets two threshold values of bandwidth proportion: the bandwidth ratio threshold value is determined by means of simulation and the like, wherein the first bandwidth ratio threshold value M and the second bandwidth ratio threshold value N are both smaller than 1, and the specific value of the bandwidth ratio threshold value needs to consider the influence of the scheduled bandwidth and the scheduled time on the power consumption of the terminal and the utilization rate of network resources and the like.

Calculating the ratio of the required working bandwidth (Y) occupied by the BWP in the BWP configuration feedback information to the first bandwidth (X) to obtain a first reference value; and calculating the ratio of the first bandwidth (X) to the second bandwidth (Z) to obtain a second reference value, when the first reference value (Y/X) is greater than or equal to M and the second reference value (X/Z) is less than N, the network device determines the BWP corresponding to the BWP occupied required working bandwidth in the BWP configuration feedback information as a target BWP, and activates the target BWP during scheduling.

When the first reference value (Y/X) is greater than or equal to M and the second reference value (X/Z) is greater than or equal to N, the network device determines that the BWP corresponding to the second bandwidth is the target BWP, and activates the target BWP at this scheduling time. When the first reference value (Y/X) is smaller than M, the network device determines that the BWP corresponding to the second bandwidth is the target BWP, and activates the target BWP at this scheduling time.

In this embodiment of the present invention, after receiving the BWP demand configuration included in the BWP configuration feedback information, the method further includes: detecting whether at least one of frequency domain bandwidths corresponding to all the BWPs configured by the network device, the BWP deactivation timer duration configured by the network device and default BWPs conforms to BWP demand configuration in BWP configuration feedback information; and if not, sending the updated BWP configuration to the terminal through a Radio Resource Control (RRC) reconfiguration message.

After receiving the BWP configuration feedback information including the BWP demand configuration reported by the terminal, the network device may determine whether to update the configuration for the terminal. When the frequency domain bandwidths corresponding to the 1 or more BWPs configured for the terminal by the network device do not conform to the BWP requirement configuration in the BWP configuration feedback information reported by the terminal, and/or the duration of the default BWP and/or BWP deactivation timer configured for the network device does not conform to the BWP requirement configuration in the BWP configuration feedback information reported by the terminal, the network may update the corresponding BWP configuration, and send an RRC reconfiguration message to the terminal. Otherwise, the network device does not need to update the BWP configuration of the terminal.

Wherein, the flow of determining whether to update configuration for the terminal only addresses the situation that BWP configuration feedback information includes BWP required configuration, and before determining the target BWP, the corresponding flow of the determining process may refer to fig. 5:

step 501, the network device receives BWP configuration feedback information reported by the terminal.

Step 502, determining whether the BWP configuration needs to be updated according to the BWP configuration feedback information, if yes, performing step 503, otherwise, performing step 504.

Step 503, the network device updates the BWP configuration in the RRC reconfiguration message. Step 504 is then performed.

Step 504, the network device determines the target BWP.

The BWP configuration feedback information includes BWP required configuration, and the BWP configuration feedback information includes BWP identification number, both of which need to execute the procedure of determining the target BWP.

In the embodiment of the present invention, in order to reduce the scheduling and processing responsibility, the network device may uniformly configure a full bandwidth BWP for all terminals in the cell. When the BWP configuration feedback information reported by the first terminal carries the recommended BWP bandwidth (the required working bandwidth occupied by the BWP), the network device may add a BWP corresponding to the recommended BWP bandwidth to the terminal, update the BWP configuration in the RRC reconfiguration message, and send the updated BWP configuration to the terminal. The method and the device can not increase the processing and scheduling complexity of the network equipment too much, and simultaneously give consideration to the terminals with special requirements in the cell, thereby ensuring good user experience.

It should be noted that, when determining the target BWP, the terminal service requirement and the data volume need to be combined, and a specific example is described below. The network device configures 3 BWPs for the terminal in advance, and when the terminal reports that the BWP configuration feedback information carries the recommended BWP bandwidth and the network device determines that one of the 3 BWPs meets the recommended BWP bandwidth, the network device should also determine the activated target BWP in consideration of factors such as the terminal service requirement and the data volume when the terminal has a data scheduling requirement. For example, the amount of data to be transmitted by the terminal is small, and the bandwidth actually occupied by scheduling after the network device combines the channel quality and the scheduling policy is smaller than the newly added (terminal-recommended) BWP bandwidth, the network device activates the BWP corresponding to the newly added BWP bandwidth during the scheduling.

In the method for accessing a bandwidth part BWP on a network device side provided in the embodiments of the present invention, a receiving terminal receives BWP configuration feedback information sent after starting a BWP configuration update procedure; the target BWP is determined according to the BWP configuration feedback information and is sent to the terminal, the network device can determine the BWP related configuration and activated BWP more sufficiently by means of the terminal information, the BWP configured by the network device is ensured to be more consistent with the state or the capability of the terminal, the flexibility of the BWP configuration is more sufficiently utilized, the power consumption performance of the terminal is improved, the user experience is ensured, meanwhile, the network device does not need to configure the BWP independently for all terminals in the cell, only configures the BWP independently for the terminal in a special state, the processing and scheduling complexity of the network device is not excessively increased, meanwhile, the terminal with special requirements in the cell can be considered, and the good user experience is ensured.

As shown in fig. 6, the terminal includes a transceiver 610 and a processor 620, where the processor 620 is configured to: when the terminal is in a Radio Resource Control (RRC) connection state and the current electric quantity is less than or equal to a preset electric quantity threshold value, starting a BWP configuration updating process; according to the current BWP configuration configured by the network device and the BWP demand configuration corresponding to the preset electric quantity threshold, controlling the transceiver 610 to send BWP configuration feedback information to the network device; the control transceiver 610 receives a target BWP determined according to the BWP configuration feedback information transmitted by the network device and accesses the target BWP.

Wherein, the processor 620 is further configured to: the corresponding relation between at least one preset electric quantity threshold value and the corresponding BWP requirement configuration is preset.

Wherein, the processor 620 is further configured to: presetting a corresponding relation between at least two preset electric quantity threshold values and corresponding BWP demand configurations; wherein,

in the process of starting the BWP configuration update procedure when the terminal is in the RRC connected state and the current power is less than or equal to the preset power threshold, the processor 620 is further configured to:

when the terminal is in the RRC connected state and the current electric quantity is less than or equal to each preset electric quantity threshold value, a BWP configuration update procedure is started.

Wherein, the BWP demand configuration includes the demanded working bandwidth occupied by BWP and the demand value of the BWP deactivation timer.

Wherein, the processor 620 is further configured to:

when the transceiver 610 receives a low power mode in which the set power input by the user is lower than the preset power threshold, it is determined that the current power is less than or equal to the preset power threshold.

When BWP configuration feedback information is sent to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold, the processor 620 is further configured to:

comparing the current BWP configuration with a BWP demand configuration corresponding to a preset electric quantity threshold value, and judging whether the current BWP configuration is in accordance with the BWP demand configuration corresponding to the preset electric quantity threshold value;

when the current BWP configuration is consistent with the BWP demand configuration corresponding to the preset electric quantity threshold value, determining that the BWP configuration feedback information comprises a BWP identification number of the BWP demand configuration corresponding to the current preset electric quantity threshold value;

the control transceiver 610 transmits BWP configuration feedback information to the network device.

Wherein, when sending the BWP configuration feedback information to the network device, the transceiver 610 is further configured to:

sending the BWP configuration feedback information to the network equipment through the terminal auxiliary information; or

Sending the BWP configuration feedback information to the network equipment through an RRC reconfiguration complete message; or alternatively

And sending the BWP configuration feedback information to the network equipment through the defined independent uplink signaling.

When determining whether the current BWP configuration matches the BWP requirement configuration corresponding to the preset threshold, the processor 620 is further configured to:

if the frequency domain bandwidth corresponding to at least part of the BWPs configured by the network device is smaller than or equal to the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and the BWP deactivation timer configured by the network device has a duration smaller than or equal to the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, determining that the current BWP configuration is consistent with the BWP requirement configuration corresponding to the preset electric quantity threshold value;

if the frequency domain bandwidth corresponding to all BWPs configured by the network device is greater than the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, and/or the duration of the BWP deactivation timer configured by the network device is greater than the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value of the terminal, it is determined that the current BWP configuration is not in accordance with the BWP requirement configuration corresponding to the preset electric quantity threshold value.

Wherein, before or after initiating the BWP configuration update procedure, the transceiver 610 is further configured to:

The terminal provided by the embodiment of the invention can send the BWP configuration feedback information to the network device according to the current BWP configuration and the preset current corresponding BWP requirement configuration after the terminal starts a BWP configuration updating flow, and the network device determines the target BWP according to the BWP configuration feedback information to realize that the network device determines the BWP related configuration and activated BWP by the terminal information more fully, so that the BWP configured by the network device better conforms to the state or capability of the terminal, the flexibility of the BWP configuration is more fully utilized, the power consumption performance of the terminal is improved, the user experience is ensured, meanwhile, the network device does not need to configure the BWP for all terminals in a cell independently, only configures the BWP for the terminals with special states, the processing and scheduling complexity of the network device is not increased excessively, meanwhile, the terminals with special requirements in the cell can be considered, and the good user experience is ensured.

A network device according to an embodiment of the present invention is further provided, as shown in fig. 7, where the network device includes a processor 710 and a transceiver 720, where the transceiver 720 is configured to:

receiving BWP configuration feedback information sent by a terminal after starting a BWP configuration updating process; the processor 710 is configured to determine a target BWP according to the BWP configuration feedback information, and control the transceiver 720 to transmit the target BWP to the terminal.

Wherein, when the receiving terminal starts the BWP configuration feedback information sent after the BWP configuration update procedure, the transceiver 720 is configured to:

receiving BWP configuration feedback information sent by a terminal through terminal auxiliary information; or

Receiving BWP configuration feedback information sent by a terminal through a Radio Resource Control (RRC) reconfiguration completion message; or

And receiving BWP configuration feedback information sent by independent uplink signaling defined by the terminal.

the BWP corresponding to the BWP identification number is one of the BWPs configured for the terminal by the network device.

Wherein, when determining the target BWP according to the BWP configuration feedback information, the processor 710 is configured to:

and determining the BWP corresponding to the BWP identification number as the target BWP.

wherein the BWP demand configuration includes a demanded operating bandwidth occupied by BWP and a demand value of the BWP deactivation timer.

when a terminal has a data scheduling requirement, determining the relationship between a first bandwidth occupied by resources allocated by a current data scheduling plan and a required working bandwidth occupied by BWP in BWP configuration feedback information according to the channel quality, the service requirement, the data volume and a scheduling strategy of the terminal;

if the first bandwidth is smaller than or equal to the required working bandwidth occupied by the BWP in the BWP configuration feedback information, determining the BWP corresponding to the required working bandwidth occupied by the BWP in the BWP configuration feedback information as the target BWP;

if the first bandwidth is larger than the required working bandwidth occupied by the BWP in the BWP configuration feedback information, determining the target BWP according to a relationship between the first bandwidth, the required working bandwidth occupied by the BWP in the BWP configuration feedback information, and a second bandwidth, wherein the second bandwidth is a frequency domain bandwidth of the BWP in the BWP configuration that is larger than and closest to the first bandwidth.

Wherein, when determining the target BWP according to the relationship between the first bandwidth, the required working bandwidth occupied by the BWP in the BWP configuration feedback information, and the second bandwidth, the processor 710 is configured to:

if the first reference value is greater than or equal to the first bandwidth proportion threshold value and the second reference value is less than the second bandwidth proportion threshold value, determining that the BWP corresponding to the BWP occupying the required working bandwidth in the BWP configuration feedback information is the target BWP;

if the first reference value is greater than or equal to the first bandwidth proportion threshold value and the second reference value is greater than or equal to the second bandwidth proportion threshold value, determining the BWP corresponding to the second bandwidth as a target BWP;

and if the first reference value is smaller than the first bandwidth ratio threshold value, determining the BWP corresponding to the second bandwidth as the target BWP.

Wherein, after receiving the BWP requirement configuration included in the BWP configuration feedback information, the processor 710 is further configured to:

detecting whether at least one of frequency domain bandwidths corresponding to all the BWPs configured by the network device, the BWP deactivation timer duration configured by the network device and default BWPs conforms to BWP demand configuration in BWP configuration feedback information;

if not, the control transceiver 720 sends the updated BWP configuration to the terminal through a radio resource control RRC reconfiguration message.

The network device provided by the embodiment of the invention receives the BWP configuration feedback information sent by the terminal after the BWP configuration updating process is started; the target BWP is determined according to the BWP configuration feedback information and is sent to the terminal, so that the network device can determine the BWP related configuration and activated BWP more sufficiently by means of the terminal information, the BWP configured by the network device is ensured to be more consistent with the state or capability of the terminal, the flexibility of the BWP configuration is more sufficiently utilized, the power consumption performance of the terminal is improved, the user experience is ensured, meanwhile, the network device does not need to configure the BWP for all terminals in the cell independently, only configures the BWP for the terminal in a special state independently, the processing and scheduling complexity of the network device is not increased excessively, meanwhile, the terminal with special requirements in the cell can be considered, and the good user experience is ensured.

The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; the processor implements the above-described access method of the bandwidth part BWP on the terminal side when executing the program.

Specifically, as shown in fig. 8, the terminal includes:

a processor 810 for reading programs in the memory 820;

a transceiver 830 for receiving and transmitting data under the control of the processor 810; and a user interface 840.

Wherein in fig. 8 the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 810 and various circuits of memory represented by memory 820 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 830 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 in performing operations.

The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 in performing operations.

In particular, processor 810 is configured to: when the terminal is in a Radio Resource Control (RRC) connection state and the current electric quantity is less than or equal to a preset electric quantity threshold value, starting a BWP configuration updating process; controlling the transceiver 830 to send BWP configuration feedback information to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric quantity threshold; the control transceiver 830 receives the target BWP determined according to the BWP configuration feedback information transmitted by the network device and accesses the target BWP.

The transceiver 830 and the processor 810 are further configured to perform other specific steps corresponding to the transceiver and the processor in the embodiment corresponding to fig. 6, which are not described herein again.

The embodiment of the invention also provides network equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the above-described access method for the bandwidth part BWP on the network device side.

Specifically, as shown in fig. 9, the network device includes:

a processor 910 for reading a program in a memory 920;

a transceiver 930 for receiving and transmitting data under the control of the processor 910.

Wherein in fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 910, and various circuits, represented by memory 920, 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 930 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 910 in performing operations.

The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 610 in performing operations.

Specifically, the transceiver 930 is configured to: receiving BWP configuration feedback information sent by a terminal after starting a BWP configuration updating process; the processor 910 is configured to determine a target BWP according to the BWP configuration feedback information, and control the transceiver 930 to transmit the target BWP to the terminal.

The transceiver 930 and the processor 910 are further configured to perform other specific steps corresponding to the transceiver and the processor in the embodiment corresponding to fig. 7, which are not described herein again.

In addition, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the steps in the method for accessing the bandwidth portion BWP according to any of the above-mentioned embodiments.

Specifically, the computer-readable storage medium is applied to a network device or a terminal, and when the computer-readable storage medium is applied to the network device or the terminal, the steps executed in the access method for the bandwidth portion BWP corresponding to the network device or the terminal are described in detail above, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus 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.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An access method for bandwidth segment BWP, applied to a terminal, the method comprising:

2. The method of claim 1, further comprising:

3. The method according to claim 2, wherein a corresponding relationship between at least two preset threshold values of electric quantity and corresponding BWP requirement configurations is preset; wherein,

4. The method according to any of claims 1 to 3, wherein the BWP demand profile comprises a demanded operating bandwidth occupied by BWP and a demand value of a BWP deactivation timer.

5. The method of claim 1, further comprising:

6. The method according to claim 1, wherein the step of sending BWP configuration feedback information to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset threshold value of power consumption comprises:

7. The method according to claim 1 or 6, wherein the step of sending BWP configuration feedback information to the network device comprises:

sending the BWP configuration feedback information to the network equipment through terminal auxiliary information; or sending the BWP configuration feedback information to the network equipment through an RRC reconfiguration complete message; or

8. The method according to claim 6, wherein said step of determining whether the current BWP configuration is compliant with the BWP requirement configuration corresponding to the preset threshold value comprises:

and if the frequency domain bandwidth corresponding to all BWPs configured by the network device is greater than the required working bandwidth occupied by the BWPs under the BWP requirement configuration corresponding to the preset electric quantity threshold value set by the terminal, and/or the duration of the BWP deactivation timer configured by the network device is greater than the required value of the BWP deactivation timer under the BWP requirement configuration corresponding to the preset electric quantity threshold value set by the terminal, determining that the current BWP configuration does not conform to the BWP requirement configuration corresponding to the preset electric quantity threshold value set by the terminal.

9. The method according to claim 1, before or after initiating the BWP configuration update procedure, further comprising:

10. An access method of bandwidth part BWP, applied to a network device, is characterized in that the method comprises:

11. The method according to claim 10, wherein the step of the receiving terminal sending the BWP configuration feedback information after starting the BWP configuration update procedure comprises:

12. The method according to claim 10, wherein the step of the receiving terminal sending the BWP configuration feedback information after starting the BWP configuration update procedure comprises:

13. The method according to claim 12, wherein the step of determining a target BWP according to the BWP configuration feedback information comprises:

14. The method according to claim 10, wherein the step of the receiving terminal sending the BWP configuration feedback information after starting the BWP configuration update procedure comprises:

15. The method according to claim 14, wherein the step of determining a target BWP according to the BWP configuration feedback information comprises:

when the terminal has a data scheduling requirement, determining a relationship between a first bandwidth occupied by resources allocated by a current data scheduling plan and a required working bandwidth occupied by the BWP in the BWP configuration feedback information according to the channel quality, the service requirement, the data volume and a scheduling policy of the terminal;

16. The method according to claim 15, wherein the step of determining the target BWP according to the relationship between the first bandwidth, the required operating bandwidth occupied by BWP in the BWP configuration feedback information, and the second bandwidth comprises:

17. The method according to claim 14, wherein said receiving the BWP configuration feedback information comprises a BWP demand configuration, and further comprising:

18. A terminal comprising a processor and a transceiver, the processor configured to:

19. The terminal of claim 18, wherein the processor is further configured to:

20. The terminal of claim 19, wherein the processor is further configured to: presetting a corresponding relation between at least two preset electric quantity thresholds and corresponding BWP (bwpeer) demand configuration; wherein,

when the terminal is in an RRC connected state and the current electric quantity is less than or equal to a preset electric quantity threshold value, the processor is further configured to, during a process of starting a BWP configuration update procedure:

and when the terminal is in an RRC (radio resource control) connected state and the current electric quantity is less than or equal to each preset electric quantity threshold value, starting a BWP (BWP) configuration updating process.

21. The terminal of any of claims 18 to 20, wherein the BWP demand profile comprises a demanded operating bandwidth occupied by BWP and a demanded value of a BWP deactivation timer.

22. The terminal of claim 18, wherein the processor is further configured to:

23. The terminal of claim 18, wherein when the BWP configuration feedback information is sent to the network device according to the current BWP configuration configured by the network device and the BWP requirement configuration corresponding to the preset electric-quantity threshold, the processor is further configured to:

24. The terminal according to claim 18 or 23, wherein said transceiver, when sending BWP configuration feedback information to said network device, is further configured to:

25. The terminal of claim 23, wherein when determining whether the current BWP configuration matches the BWP requirement configuration corresponding to the preset threshold, the processor is further configured to:

26. The terminal of claim 18, wherein before or after initiating a BWP configuration update procedure, the transceiver is further configured to:

27. A network device comprising a processor and a transceiver configured to:

28. The network device of claim 27, wherein the transceiver is configured to, when receiving BWP configuration feedback information sent by the terminal after initiating the BWP configuration update procedure:

receiving the BWP configuration feedback information sent by the terminal through terminal auxiliary information; or alternatively

Receiving the BWP configuration feedback information sent by the terminal through a Radio Resource Control (RRC) reconfiguration completion message; or alternatively

29. The network device of claim 27, wherein the transceiver is configured to, when the receiving terminal sends the BWP configuration feedback information after initiating the BWP configuration update procedure:

30. The network device of claim 29, wherein the processor, when determining a target BWP based on the BWP configuration feedback information, is configured to:

31. The network device of claim 27, wherein the transceiver is configured to, when receiving BWP configuration feedback information sent by the terminal after initiating the BWP configuration update procedure:

32. The network device of claim 31, wherein the processor, when determining a target BWP based on the BWP configuration feedback information, is configured to:

33. The network device of claim 32, wherein when determining the target BWP according to the relationship between the first bandwidth, the required working bandwidth occupied by BWP in the BWP configuration feedback information, and the second bandwidth, the processor is configured to:

34. The network device of claim 31, wherein after receiving the BWP configuration feedback information comprising the BWP demand configuration, the processor is further configured to:

35. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the steps in the method for accessing a bandwidth part BWP according to any of claims 1 to 9.

36. A network device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the steps in the access method for bandwidth portion BWP according to any of the claims 10 to 17.

37. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of an access method for a bandwidth segment BWP according to any one of claims 1 to 9 or of an access method for a bandwidth segment BWP according to any one of claims 10 to 17.