Bandwidth part configuration method and device, equipment and storage medium

Abstract

The invention provides a bandwidth part configuration method and device, equipment and a storage medium. The method is executed by the user equipment, and comprises the following steps: in response to the condition that the user equipment is configured with a plurality of initial downlink bandwidth parts (BWPs), determining one of the plurality of initial downlink BWPs as a default BWP; wherein the default BWP is a target BWP to which the user equipment is switched in response to timeout of a first timer. In the embodiment of the invention, when the user equipment does not receive the scheduling DCI for a long time, the user equipment is switched to the initial downlink BWP with a narrower bandwidth, so that the power consumption of the user equipment can be reduced, and the method is more suitable for a 5G NR-lite system.

Description

[0001] This disclosure is a divisional application of Chinese application No. 202280000451.8, filed on February 18, 2022, entitled "A method, apparatus, device and storage medium for configuring bandwidth". Technical Field

[0002] This disclosure relates to the field of wireless communication technology, and in particular to a method, apparatus, device and storage medium for configuring bandwidth portion. Background Technology

[0003] In LTE 4G systems, two major technologies were proposed to support IoT services: Machine-Type Communication (MTC) and Narrow Band Internet of Things (NB-IoT). These technologies primarily target scenarios with low data rates and high latency, such as meter reading and environmental monitoring. Currently, NB-IoT can only support speeds of a few hundred kilobytes per second (Mbps), while MTC can only support speeds of a few megabytes per second (Mbps). On the other hand, with the continuous development of IoT services, such as video surveillance, smart homes, wearable devices, and industrial sensing and monitoring, these services typically require speeds of tens to 100 megabytes per second (Mbps) and relatively high latency. Therefore, LTE's MTC and NB-IoT technologies struggle to meet these requirements. Based on this situation, many companies have proposed designing a new type of user equipment in the 5G New Radio (NR) to cover these mid-range IoT devices. In the current 3GPP standardization, this new terminal type is called a Reduced Capability (RedCap) terminal or simply an NR-lite terminal. Summary of the Invention

[0004] In view of this, the present disclosure provides a method, apparatus, device and storage medium for configuring bandwidth.

[0005] According to a first aspect of the present disclosure, a bandwidth portion configuration method is provided, executed by a user equipment, comprising: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), one of the multiple initial downlink BWPs is determined to be the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0006] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: Based on the configuration of the uplink BWP of the user equipment, one of the plurality of initial downlink BWPs is determined as the default BWP.

[0007] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: In response to the user equipment being configured with an initial uplink BWP, a first initial downlink BWP corresponding to the initial uplink BWP is determined as the default BWP, wherein the first initial downlink BWP is one of the plurality of initial downlink BWPs.

[0008] In one embodiment, the correspondence is that the initial uplink BWP and the first initial downlink BWP have the same center frequency.

[0009] In one embodiment, the correspondence is that the initial uplink BWP includes a random access channel configured for the user equipment to send random access information, and the first initial downlink BWP includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry random access responses corresponding to the random access information.

[0010] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: In response to the plurality of initial downlink BWPs including the initial downlink BWPs configured by the network device through the Master System Information Block (MIB), the initial downlink BWP configured through the MIB is determined to be the default BWP.

[0011] In one embodiment, determining that the initial downlink BWP configured via MIB is the default BWP includes: In response to the user equipment being configured with an uplink BWP that corresponds to the initial downlink BWP configured via MIB, the initial downlink BWP configured via MIB is determined to be the default BWP.

[0012] In one embodiment, the correspondence is that the uplink BWP and the initial downlink BWP configured via MIB have the same center frequency.

[0013] In one embodiment, the correspondence is that the uplink BWP includes a random access channel configured for the user equipment to send random access information, and the initial downlink BWP configured through the MIB includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry random access responses corresponding to the random access information.

[0014] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: In response to the plurality of initial downlink BWPs including the initial downlink BWP configured by the network device via MIB, the initial downlink BWP configured via MIB is determined to be the default BWP.

[0015] In one embodiment, the first timer is used to time the duration for which the user equipment does not receive scheduling downlink control information while the BWP is activated.

[0016] According to a second aspect of the present disclosure, a bandwidth portion configuration method is provided, executed by a network device, comprising: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), one of the multiple initial downlink BWPs is determined to be the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the first timer timeout.

[0017] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: Based on the configuration of the uplink BWP of the user equipment, one of the plurality of initial downlink BWPs is determined as the default BWP.

[0018] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: In response to the user equipment being configured with an initial uplink BWP, a first initial downlink BWP corresponding to the initial uplink BWP is determined as the default BWP, wherein the first initial downlink BWP is one of the plurality of initial downlink BWPs.

[0019] In one embodiment, the correspondence is that the initial uplink BWP and the first initial downlink BWP have the same center frequency.

[0020] In one embodiment, the correspondence is that the initial uplink BWP includes a random access channel configured for the user equipment to send random access information, and the first initial downlink BWP includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry random access responses corresponding to the random access information.

[0021] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: In response to the plurality of initial downlink BWPs including the initial downlink BWPs configured by the network device through the Master System Information Block (MIB), the initial downlink BWP configured through the MIB is determined to be the default BWP.

[0022] In one embodiment, determining that the initial downlink BWP configured via MIB is the default BWP includes: In response to the user equipment being configured with an uplink BWP that corresponds to the initial downlink BWP configured via MIB, the initial downlink BWP configured via MIB is determined to be the default BWP.

[0023] In one embodiment, the correspondence is that the uplink BWP and the initial downlink BWP configured via MIB have the same center frequency.

[0024] In one embodiment, the correspondence is that the uplink BWP includes a random access channel configured for the user equipment to send random access information, and the initial downlink BWP configured through the MIB includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry random access responses corresponding to the random access information.

[0025] In one embodiment, determining one of the plurality of initial downlink BWPs as the default BWP includes: In response to the plurality of initial downlink BWPs including the initial downlink BWP configured by the network device via MIB, the initial downlink BWP configured via MIB is determined to be the default BWP.

[0026] In one embodiment, the first timer is used to time the duration for which the user equipment does not receive scheduling downlink control information while the BWP is activated.

[0027] According to a third aspect of the present disclosure, a bandwidth portion configuration apparatus is provided, applied to a user equipment, comprising: The processing module is configured to determine one of the multiple initial downlink bandwidth portions (BWPs) as the default BWP in response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs). The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0028] According to a fourth aspect of the present disclosure, a bandwidth configuration apparatus is provided, applied to a network device, comprising: The processing module is configured to determine one of the multiple initial downlink bandwidth portions (BWPs) as the default BWP in response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs). The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0029] According to a fifth aspect of the present disclosure, a mobile terminal is provided, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the bandwidth portion configuration method described above.

[0030] According to a sixth aspect of the present disclosure, a network-side device is provided, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the bandwidth portion configuration method described above.

[0031] According to a seventh aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which executable instructions are stored, which, when executed by a processor, implement the steps of the bandwidth portion configuration method described above.

[0032] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: By determining the default BWP to which a user equipment (UE) should switch, and allowing the UE to switch to the initial downlink BWP with narrower bandwidth when it has not received a scheduled DCI for an extended period, the power consumption of the UE can be reduced, making it more suitable for 5G NR-lite systems.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of the embodiments of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and, together with their descriptions, serve to explain the embodiments of this disclosure and do not constitute an improper limitation of the embodiments of this disclosure. In the drawings: The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0035] Figure 1This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 2 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 3 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 4 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 5 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 6 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 7 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 8 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 9 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 10 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 11 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 12 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment; Figure 13 This is a block diagram illustrating a bandwidth portion configuration apparatus according to an exemplary embodiment; Figure 14 This is a block diagram illustrating a bandwidth portion configuration apparatus according to an exemplary embodiment; Figure 15 This is a structural diagram illustrating a bandwidth portion configuration device according to an exemplary embodiment; Figure 16 This is a structural diagram of a bandwidth portion configuration device according to an exemplary embodiment. Detailed Implementation

[0036] The embodiments of this disclosure will now be further described in conjunction with the accompanying drawings and specific implementation details.

[0037] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0038] It should be noted that one embodiment of this disclosure may include multiple steps; for ease of description, these steps are numbered; however, these numbers are not a limitation on the execution time slots or execution order between the steps; these steps can be implemented in any order, and this disclosure does not limit this.

[0039] Although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another.

[0040] Similar to IoT devices in LTE, terminals based on 5G NR-lite typically need to meet the following requirements: low cost and low complexity; a certain degree of coverage enhancement; and power saving.

[0041] Since current NR (New Radio) interfaces are designed for high-end terminals with high speed and low latency, they cannot meet the requirements of NR-lite. Therefore, the current NR system needs to be modified to meet the requirements of NR-lite. For example, to meet requirements such as low cost and low complexity, the RF bandwidth of NR-IoT can be limited, for example, to 5 MHz or 10 MHz, or the size of the NR-lite buffer can be limited, thereby limiting the size of each received transmission block, etc. Regarding power saving, possible optimization directions include simplifying the communication process and reducing the number of times NR-lite users need to detect the downlink control channel.

[0042] In an NR system, a serving cell can be configured with an inactivity timer for its bandwidth part (BWP). If a user equipment (UE) does not receive downlink control information (DCI) on the active BWP within the timeframe specified by this timer, the UE needs to switch to the default BWP. This default BWP can be configured by the network. If the network does not configure a default BWP for the UE, then the UE switches to the initial downlink BWP. In one possible implementation, the UE can be configured with one or more initial downlink BWPs based on the network-side device configuration or communication protocol. In this embodiment, "multiple" refers to two or more.

[0043] The solution provided in this disclosure can be used in NR-lite terminals, and of course, it can also be used in other types of terminals.

[0044] This disclosure provides a method for configuring bandwidth, which is executed by a user equipment. Figure 1 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 1 As shown, the method includes: Step 101: In response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs), determine one of the multiple initial downlink BWPs as the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0045] In this embodiment of the disclosure, the user equipment can typically be an NR-lite device.

[0046] The target BWP refers to the BWP that the user equipment switches to when the first timer expires; it can also be called the switching BWP.

[0047] In one implementation, when the user equipment is configured with multiple initial downlink BWPs, the user equipment determines one of these initial downlink BWPs as the default BWP. This default BWP is the target BWP that the user equipment will switch to in the event that the first timer expires.

[0048] In one implementation, in a scenario where an NR-lite-based user equipment is configured with multiple initial downlink BWPs, the user equipment determines one of these initial downlink BWPs as the default BWP. This default BWP is the target BWP that the user equipment will switch to in the event of a first timer timeout.

[0049] In one embodiment, a first timer is used to time the duration for which the user equipment (UE) has not received downlink control information (DCI) while on an active BWP. In one embodiment, the first timer is a BWP-InactivityTimer. The first timer starts counting after the UE receives a DCI on an active BWP. If a new DCI is received before the first timer expires, the first timer restarts counting. If no new DCI is received when the first timer expires, the UE performs a BWP handover. Alternatively, the first timer starts counting after the UE is on an active BWP; if no DCI is received when the first timer expires, the UE performs a BWP handover. That is, the first timer records the length of time the UE has not received a DCI. The duration of the first timer can be configured by the network device or determined according to the communication protocol.

[0050] In one implementation, if a user equipment (UE) does not receive scheduled downlink control information (DCI) on an active BWP for a specified period of time, such as when the timer BWP-InactivityTimer times out, the UE needs to switch to the default BWP. If the network has not configured a default BWP for the UE, and the UE has configured multiple initial downlink BWPs, the UE determines one of the multiple initial downlink BWPs as the default BWP and switches to the determined default BWP.

[0051] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth can reduce the UE's power consumption, making it more suitable for 5G NR-lite systems. Here, "narrower bandwidth" means that the bandwidth of the initial downlink BWP is less than the bandwidth of the activated downlink BWP. Alternatively, "narrower bandwidth" means that the bandwidth of the initial downlink BWP is less than a threshold.

[0052] This disclosure provides a method for configuring bandwidth, which is executed by a user equipment. Figure 2 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 2 As shown, the method includes: Step 201: In response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs), based on the configuration of the uplink BWPs of the user equipment, determine one of the multiple initial downlink BWPs as the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0053] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, the UE determines one of these initial downlink BWPs as the default BWP based on its uplink BWP configuration. This default BWP is the target BWP that the UE will switch to in the event that the first timer expires.

[0054] In one embodiment, the communication system is a Time Division Duplex (TDD) based system, where both the uplink and downlink BWPs need to be switched during BWP handover by the user equipment. Therefore, in scenarios where the user equipment is configured with multiple initial downlink BWPs, the user equipment determines one of these initial downlink BWPs as the default BWP based on its uplink BWP configuration. This default BWP is the target BWP that the user equipment will switch to in the event of a first timer timeout. In this scenario, both the default BWP and the target BWP refer to the downlink BWP that the user equipment switches to.

[0055] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth can reduce the UE's power consumption, making it more suitable for 5G NR-lite systems. Furthermore, in scenarios where the UE is configured with multiple initial downlink BWPs, the default BWP to switch to is determined based on the configuration of its uplink BWPs.

[0056] This disclosure provides a method for configuring bandwidth, which is executed by a user equipment. Figure 3 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 3 As shown, the method includes: Step 301: In response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs) and the user equipment being configured with an initial uplink BWP, a corresponding first initial downlink BWP is determined according to the correspondence between the initial uplink BWP and the initial downlink BWP, wherein the first initial downlink BWP is the default BWP. Wherein, the first initial downlink BWP is one of the plurality of initial downlink BWPs; the default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0057] In some possible implementations, the user equipment can determine the default BWP based on the correspondence between the initial uplink BWP and the initial downlink BWP. For example, it can be based on the correspondence configured on the network side, or based on the corresponding correspondence, or based on the correspondence determined by the communication protocol; the user equipment can determine the first initial downlink BWP based on the correspondence and use the first initial downlink BWP as the default BWP.

[0058] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and the UE is configured with one initial uplink BWP, a first initial downlink BWP that corresponds to the initial uplink BWP is determined as the default BWP. This default BWP is the target BWP that the UE will switch to when the first timer times out. Here, the first initial downlink BWP is one of the multiple initial downlink BWPs, and the first initial downlink BWP does not indicate its order among the multiple initial downlink BWPs.

[0059] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and the UE is configured with one initial uplink BWP, one of the initial downlink BWPs with the same center frequency as the initial uplink BWP is determined as the default BWP. This default BWP is the target BWP that the UE will switch to in the event that the first timer expires.

[0060] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and the UE is configured with one initial uplink BWP, one of the multiple initial downlink BWPs that has the following relationship with the initial uplink BWP is determined as the default BWP: the initial uplink BWP includes a random access channel configured for the UE to transmit random access information, and the initial downlink BWP includes a physical layer channel and a random access search space configured for the UE; wherein the physical layer channel is used to carry a random access response corresponding to the random access information. This default BWP is the target BWP that the UE will switch to in the event of a first timer timeout.

[0061] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth can reduce the UE's power consumption, making it more suitable for 5G NR-lite systems. Furthermore, in scenarios where the UE is configured with multiple initial downlink BWPs, the default BWP to switch to is determined based on the configuration of its uplink BWPs.

[0062] This disclosure provides a method for configuring bandwidth, which is executed by a user equipment. Figure 4This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 4 As shown, the method includes: Step 401: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), and the multiple initial downlink BWPs include the initial downlink BWPs configured by the network equipment through the main system information block (MIB), determine that the initial downlink BWP configured through the MIB is the default BWP. The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0063] In one embodiment, where the user equipment is configured with multiple initial downlink BWPs, and these multiple initial downlink BWPs include the initial downlink BWPs configured by the network device through the Master System Information Block (MIB), the initial downlink BWP configured through the MIB is determined to be the default BWP. This default BWP is the target BWP that the user equipment will switch to in the event that the first timer expires.

[0064] In one embodiment, the communication system is an FDD-based system. In a scenario where the user equipment is configured with multiple initial downlink BWPs, and these multiple initial downlink BWPs include the initial downlink BWPs configured by the network device through the Master System Information Block (MIB), the initial downlink BWP configured through the MIB is determined as the default BWP. This default BWP is the target BWP that the user equipment will switch to in the event of a first timer timeout.

[0065] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth can reduce the UE's power consumption, making it more suitable for 5G NR-lite systems. Furthermore, in scenarios where the UE is configured with multiple initial downlink BWPs, the default BWP to switch to is determined based on the configuration of its uplink BWPs.

[0066] This disclosure provides a method for configuring bandwidth, which is executed by a user equipment. Figure 5 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 5 As shown, the method includes: Step 501: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), and the multiple initial downlink BWPs include the initial downlink BWPs configured by the network device through the main system information block (MIB) and the user equipment is configured with an uplink BWP that corresponds to the initial downlink BWPs configured through the MIB, the initial downlink BWP configured through the MIB is determined to be the default BWP. The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0067] The correspondence can be as described in other embodiments of this disclosure, and will not be repeated here.

[0068] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and these multiple initial downlink BWPs include those configured by the network device through the Master System Information Block (MIB), when the UE has an uplink BWP that corresponds to the initial downlink BWP configured through the MIB, the initial downlink BWP configured through the MIB is determined to be the default BWP. This default BWP is the target BWP that the UE will switch to in the event of a first timer expiration.

[0069] In one embodiment, the communication system is an FDD-based system. In a scenario where a user equipment (UE) is configured with multiple initial downlink BWPs, and these initial downlink BWPs include those configured by the network device through the Master System Information Block (MIB), when the UE has an uplink BWP that corresponds to the initial downlink BWP configured through the MIB, the initial downlink BWP configured through the MIB is determined to be the default BWP. This correspondence is that the initial downlink BWP configured through the MIB and the uplink BWP have the same center frequency. This default BWP is the target BWP that the UE will switch to in the event of a first timer timeout.

[0070] In one embodiment, the communication system is an FDD-based system. In a scenario where a user equipment (UE) is configured with multiple initial downlink BWPs (Browser Window Devices), and these initial downlink BWPs include those configured by the network device through the Master System Information Block (MIB), when the UE has an uplink BWP that corresponds to the initial downlink BWP configured through the MIB, the initial downlink BWP configured through the MIB is determined to be the default BWP. This correspondence is as follows: the initial uplink BWP includes a random access channel configured for the UE to transmit random access information, and the initial downlink BWP configured through the MIB includes a physical layer channel and a random access search space configured for the UE; wherein the physical layer channel is used to carry a random access response corresponding to the random access information.

[0071] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth can reduce the UE's power consumption, making it more suitable for 5G NR-lite systems. Furthermore, in scenarios where the UE is configured with multiple initial downlink BWPs, the default BWP to switch to is determined based on the configuration of its uplink BWPs.

[0072] This disclosure provides a method for configuring bandwidth, which is executed by a user equipment. Figure 6 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 6 As shown, the method includes: Step 601: In response to the user equipment being configured with a plurality of initial downlink bandwidth portions (BWPs), and the plurality of initial downlink BWPs including the initial downlink BWPs configured by the network device through the MIB, the initial downlink BWP configured through the MIB is determined to be the default BWP. The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0073] In one embodiment, where the user equipment is configured with multiple initial downlink BWPs, and these multiple initial downlink BWPs include the initial downlink BWPs configured by the network device through the Master System Information Block (MIB), the initial downlink BWP configured through the MIB is determined to be the default BWP. This default BWP is the target BWP that the user equipment will switch to in the event that the first timer expires.

[0074] In one implementation, the communication system is a Frequency Division Duplex (FDD) based system, and user equipment (UE) can perform BWP handover without switching uplink BWP. Therefore, in scenarios where the UE is configured with multiple initial downlink BWPs, and these initial downlink BWPs include those configured by the network device through the Master System Information Block (MIB), the initial downlink BWP configured through the MIB is determined as the default BWP. This default BWP is the target BWP that the UE will switch to when the first timer expires. In this scenario, it is not necessary to determine the default BWP based on the UE's uplink BWP configuration.

[0075] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth can reduce the UE's power consumption, making it more suitable for 5G NR-lite systems. Here, "narrower bandwidth" means that the bandwidth of the initial downlink BWP is less than the bandwidth of the activated downlink BWP. Alternatively, "narrower bandwidth" means that the bandwidth of the initial downlink BWP is less than a threshold.

[0076] This disclosure provides a method for configuring bandwidth, which is executed by a user equipment. The method includes: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), one of the multiple initial downlink BWPs is determined to be the default BWP; Wherein, the default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer; the first timer is used to start timing when the user equipment receives the scheduling downlink control information (DCI) on the activated BWP, and to determine whether the DCI is received within the timing duration of the first timer.

[0077] When a user equipment (UE) receives a DCI on an Active BWP, a first timer starts counting. If a new DCI is received before the first timer expires, the first timer restarts. If no new DCI is received when the first timer expires, the UE performs a BWP handover. Alternatively, the first timer starts counting after the UE is on an Active BWP; if no DCI is received when the first timer expires, the UE performs a BWP handover. That is, the first timer is used to record the length of time the UE has not received a DCI. In one embodiment, if the duration for which the UE has not received a scheduling downlink control information DCI on an active BWP reaches a predetermined time range, and if the UE is configured with multiple initial downlink BWPs, the UE determines one of the multiple initial downlink BWPs as the default BWP and switches to the determined default BWP.

[0078] In one implementation, the first timer is BWP-InactivityTimer.

[0079] In the above implementation, when the user equipment does not receive the scheduling DCI for a long time, it switches to the initial downlink BWP with narrower bandwidth, which can reduce the power consumption of the user equipment and make it more suitable for 5G NR-lite systems.

[0080] This disclosure provides a method for configuring bandwidth, which is executed by a network device. Figure 7 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 7 As shown, the method includes: Step 701: In response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs), determine one of the multiple initial downlink BWPs as the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the first timer timeout.

[0081] In this disclosure, the user equipment is typically an NR-lite device. In this disclosure, the network equipment is typically a base station.

[0082] In one implementation, when a user equipment is configured with multiple initial downlink BWPs, the network device determines one of these initial downlink BWPs as the default BWP. This default BWP is the target BWP that the user equipment will switch to when the first timer expires.

[0083] In one implementation, in a scenario where a user equipment based on NR-lite is configured with multiple initial downlink BWPs, the network device determines one of these initial downlink BWPs as the default BWP. This default BWP is the target BWP that the user equipment will switch to when the first timer expires.

[0084] In one embodiment, a first timer is used to time the duration during which the user equipment (UE) does not receive Downlink Control Information (DCI) on an active BWP. In one embodiment, the first timer is a BWP-InactivityTimer. The first timer starts counting after the UE receives a DCI on an active BWP. If a new DCI is received before the first timer expires, the first timer restarts counting. If no new DCI is received when the first timer expires, the UE performs a BWP handover. Alternatively, the first timer starts counting after the UE is on an active BWP; if no DCI is received when the first timer expires, the UE performs a BWP handover. That is, the first timer records the length of time during which the UE does not receive a DCI. The duration of the first timer can be configured by the network device or determined according to the communication protocol.

[0085] In one implementation, if a user equipment (UE) does not receive scheduled downlink control information (DCI) on an active BWP for a specified period of time, such as when the timer BWP-InactivityTimer times out, the UE needs to switch to the default BWP. If the network does not configure a default BWP for the UE, and the UE has multiple initial downlink BWPs configured, the network device determines one of the multiple initial downlink BWPs as the default BWP.

[0086] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth reduces the UE's power consumption, making it more suitable for 5G NR-lite systems. Network devices use this method to determine the default BWP that the UE will switch to, thereby enabling communication with the UE after the BWP switch.

[0087] This disclosure provides a method for configuring bandwidth, which is executed by a network device. Figure 8This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 8 As shown, the method includes: Step 801: In response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs), based on the configuration of the uplink BWPs of the user equipment, determine one of the multiple initial downlink BWPs as the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0088] In one implementation, when a user equipment (UE) is configured with multiple initial downlink BWPs, the network device determines one of these initial downlink BWPs as the default BWP based on the UE's uplink BWP configuration. This default BWP is the target BWP that the UE will switch to when the first timer expires.

[0089] In one implementation, the communication system is a Time Division Duplex (TDD) based system. When a user equipment (UE) performs a BWP handover, both the uplink and downlink BWPs need to be switched. Therefore, in a scenario where the UE is configured with multiple initial downlink BWPs, the network device determines one of these initial downlink BWPs as the default BWP based on the UE's uplink BWP configuration. This default BWP is the target BWP that the UE will switch to in the event of a first timer timeout. In this scenario, both the default BWP and the target BWP refer to the downlink BWP that the UE switches to.

[0090] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to an initial downlink BWP with narrower bandwidth reduces UE power consumption, making it more suitable for 5G NR-lite systems. In scenarios where a UE is configured with multiple initial downlink BWPs, the network device determines the default BWP to switch to based on the UE's uplink BWP configuration. The network device uses the above method to determine the default BWP to which the UE will switch, thereby enabling communication with the UE after the BWP switch.

[0091] This disclosure provides a method for configuring bandwidth, which is executed by a network device. Figure 9 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 9 As shown, the method includes: Step 901: In response to the user equipment being configured with multiple initial downlink bandwidth portions (BWPs) and the user equipment being configured with an initial uplink BWP, a corresponding first initial downlink BWP is determined according to the correspondence between the initial uplink BWP and the initial downlink BWP, wherein the first initial downlink BWP is the default BWP. Wherein, the first initial downlink BWP is one of the plurality of initial downlink BWPs; the default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0092] In some possible implementations, the user equipment can determine the default BWP based on the correspondence between the initial uplink BWP and the initial downlink BWP. For example, it can be based on the correspondence configured on the network side, or based on the corresponding correspondence, or based on the correspondence determined by the communication protocol; the user equipment can determine the first initial downlink BWP based on the correspondence and use the first initial downlink BWP as the default BWP.

[0093] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and the UE is configured with one initial uplink BWP, the network device determines the first initial downlink BWP that corresponds to the initial uplink BWP as the default BWP. This default BWP is the target BWP that the UE will switch to when the first timer expires. Here, the first initial downlink BWP is one of the multiple initial downlink BWPs, and does not indicate its order among the multiple initial downlink BWPs.

[0094] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and the UE is configured with one initial uplink BWP, the network device determines one of the multiple initial downlink BWPs that has the same center frequency as the initial uplink BWP as the default BWP. This default BWP is the target BWP that the UE will switch to in the event that the first timer expires.

[0095] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and the UE is configured with one initial uplink BWP, the network device determines one of the multiple initial downlink BWPs that has the following relationship with the initial uplink BWP as the default BWP: the initial uplink BWP includes a random access channel configured for the UE to send random access information, and the initial downlink BWP includes a physical layer channel and a random access search space configured for the UE; wherein the physical layer channel is used to carry a random access response corresponding to the random access information. This default BWP is the target BWP that the UE will switch to in the event of a first timer timeout.

[0096] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to an initial downlink BWP with narrower bandwidth reduces UE power consumption, making it more suitable for 5G NR-lite systems. In scenarios where a UE is configured with multiple initial downlink BWPs, the network device determines the default BWP to switch to based on the UE's uplink BWP configuration. The network device uses the above method to determine the default BWP to which the UE will switch, thereby enabling communication with the UE after the BWP switch.

[0097] This disclosure provides a method for configuring bandwidth, which is executed by a network device. Figure 10 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 10 As shown, the method includes: Step 1001: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), and the multiple initial downlink BWPs include the initial downlink BWPs configured by the network equipment through the main system information block (MIB), determine that the initial downlink BWP configured through the MIB is the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0098] In one embodiment, when a user equipment is configured with multiple initial downlink BWPs, and these multiple initial downlink BWPs include the initial downlink BWPs configured by the network device through the Master System Information Block (MIB), the network device determines the initial downlink BWP configured through the MIB as the default BWP based on the uplink BWP configuration of the user equipment. This default BWP is the target BWP that the user equipment will switch to in the event of a first timer timeout.

[0099] In one embodiment, the communication system is an FDD-based system. In a scenario where the user equipment (UE) is configured with multiple initial downlink BWPs, including those configured by the network device via the Master System Information Block (MIB), the network device determines the initial downlink BWP configured via the MIB as the default BWP based on the UE's uplink BWP configuration. This default BWP is the target BWP that the UE will switch to in the event of a first timer timeout.

[0100] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to an initial downlink BWP with narrower bandwidth reduces UE power consumption, making it more suitable for 5G NR-lite systems. In scenarios where a UE is configured with multiple initial downlink BWPs, the network device determines the default BWP to switch to based on the UE's uplink BWP configuration. The network device uses the above method to determine the default BWP to which the UE will switch, thereby enabling communication with the UE after the BWP switch.

[0101] This disclosure provides a method for configuring bandwidth, which is executed by a network device. Figure 11 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 11 As shown, the method includes: Step 1101: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), and the multiple initial downlink BWPs include the initial downlink BWPs configured by the network device through the main system information block (MIB) and the user equipment is configured with an uplink BWP that corresponds to the initial downlink BWPs configured through the MIB, the initial downlink BWP configured through the MIB is determined to be the default BWP. The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0102] The correspondence can be as described in other embodiments of this disclosure, and will not be repeated here.

[0103] In one embodiment, when a user equipment (UE) is configured with multiple initial downlink BWPs, and these multiple initial downlink BWPs include those configured by the network device through the Master System Information Block (MIB), when the UE is configured with an uplink BWP that corresponds to the initial downlink BWP configured through the MIB, the network device determines the initial downlink BWP configured through the MIB as the default BWP. This default BWP is the target BWP that the UE will switch to in the event of a first timer expiration.

[0104] In one embodiment, the communication system is an FDD-based system. In a scenario where a user equipment (UE) is configured with multiple initial downlink BWPs, and these initial downlink BWPs include those configured by the network device through the Master System Information Block (MIB), when the UE has an uplink BWP that corresponds to the initial downlink BWP configured through the MIB, the network device determines the initial downlink BWP configured through the MIB as the default BWP. This correspondence is that the initial downlink BWP configured through the MIB and the uplink BWP have the same center frequency. This default BWP is the target BWP that the UE will switch to in the event of a first timer expiration.

[0105] In one embodiment, the communication system is an FDD-based system. In a scenario where a user equipment (UE) is configured with multiple initial downlink BWPs (Browser Window Devices), and these initial downlink BWPs include those configured by the network device via the Master System Information Block (MIB), when the UE has an uplink BWP that corresponds to the initial downlink BWP configured via the MIB, the network device determines the initial downlink BWP configured via the MIB as the default BWP. This correspondence is as follows: the initial uplink BWP includes a random access channel configured for the UE to transmit random access information, and the initial downlink BWP configured via the MIB includes a physical layer channel and a random access search space configured for the UE; wherein the physical layer channel is used to carry a random access response corresponding to the random access information.

[0106] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to an initial downlink BWP with narrower bandwidth reduces UE power consumption, making it more suitable for 5G NR-lite systems. In scenarios where a UE is configured with multiple initial downlink BWPs, the network device determines the default BWP to switch to based on the UE's uplink BWP configuration. The network device uses the above method to determine the default BWP to which the UE will switch, thereby enabling communication with the UE after the BWP switch.

[0107] This disclosure provides a method for configuring bandwidth, which is executed by a network device. Figure 12 This is a flowchart illustrating a bandwidth portion configuration method according to an exemplary embodiment, such as... Figure 12 As shown, the method includes: Step 1201: In response to the user equipment being configured with a plurality of initial downlink bandwidth portions (BWPs), and the plurality of initial downlink BWPs including the initial downlink BWPs configured by the network device through the MIB, the initial downlink BWP configured through the MIB is determined to be the default BWP. The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0108] In one embodiment, where the user equipment is configured with multiple initial downlink BWPs, and these multiple initial downlink BWPs include the initial downlink BWPs configured by the network device through the Master System Information Block (MIB), the network device determines the initial downlink BWP configured through the MIB as the default BWP. This default BWP is the target BWP that the user equipment will switch to in the event that the first timer expires.

[0109] In one implementation, the communication system is a Frequency Division Duplex (FDD) based system, and user equipment (UE) can perform BWP handover without switching uplink BWP. Therefore, in scenarios where the UE is configured with multiple initial downlink BWPs, and these initial downlink BWPs include the initial downlink BWP configured by the network device through the Master System Information Block (MIB), the network device determines the initial downlink BWP configured through the MIB as the default BWP. This default BWP is the target BWP that the UE will switch to in the event of a first timer timeout. In this scenario, it is not necessary to determine the default BWP based on the UE's uplink BWP configuration.

[0110] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth reduces the UE's power consumption, making it more suitable for 5G NR-lite systems. Network devices use this method to determine the default BWP that the UE will switch to, thereby enabling communication with the UE after the BWP switch.

[0111] This disclosure provides a method for configuring bandwidth, which is executed by a network device. The method includes: In response to the fact that the user equipment is configured with multiple initial downlink bandwidth portions (BWPs), one of the multiple initial downlink BWPs is determined to be the default BWP; The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer; the first timer is used to count the duration for which the user equipment does not receive scheduling downlink control information while the BWP is active.

[0112] In one embodiment, if a user equipment fails to receive scheduling downlink control information (DCI) on an activated BWP for a specified period of time, in response to the user equipment having configured multiple initial downlink BWPs, the network device determines one of the multiple initial downlink BWPs as the default BWP and switches to the determined default BWP.

[0113] In one embodiment, the first timer is a BWP-InactivityTimer. The function of the first timer can be found in the description of other embodiments of this disclosure, and will not be repeated here.

[0114] In the above implementation, when a user equipment (UE) does not receive a scheduled DCI for an extended period, switching to the initial downlink BWP with narrower bandwidth reduces the UE's power consumption, making it more suitable for 5G NR-lite systems. Network devices use this method to determine the default BWP that the UE will switch to, thereby enabling communication with the UE after the BWP switch.

[0115] This disclosure provides a bandwidth configuration apparatus applied to a user equipment, with reference to... Figure 13 As shown, it includes: Processing module 1301 is configured to determine one of the multiple initial downlink bandwidth portions (BWPs) as a default BWP in response to the user equipment having multiple initial downlink bandwidth portions (BWPs) configured. The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0116] This disclosure provides a bandwidth configuration apparatus for use in network devices, as shown in the following embodiments. Figure 14 As shown, it includes: Processing module 1401 is configured to determine one of the multiple initial downlink bandwidth portions (BWPs) as a default BWP in response to the user equipment having multiple initial downlink bandwidth portions (BWPs) configured. The default BWP is the target BWP that the user equipment will switch to in response to the expiration of the first timer.

[0117] This disclosure provides a mobile terminal, including: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the bandwidth portion configuration method described above.

[0118] This disclosure provides a network-side device, including: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the bandwidth portion configuration method described above.

[0119] This disclosure provides a non-transitory computer-readable storage medium storing executable instructions that, when executed by a processor, implement the steps of the bandwidth configuration method described above.

[0120] Figure 15 This is a block diagram illustrating a bandwidth configuration device 1500 according to an exemplary embodiment. For example, device 1500 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0121] Reference Figure 15 The device 1500 may include one or more of the following components: a processing component 1502, a memory 1504, a power supply component 1506, a multimedia component 1508, an audio component 1510, an input / output (I / O) interface 1512, a sensor component 1514, and a communication component 1516.

[0122] Processing component 1502 typically controls the overall operation of device 1500, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1502 may include one or more processors 1520 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1502 may include one or more modules to facilitate interaction between processing component 1502 and other components. For example, processing component 1502 may include a multimedia module to facilitate interaction between multimedia component 1508 and processing component 1502.

[0123] Memory 1504 is configured to store various types of data to support the operation of device 1500. Examples of this data include instructions for any application or method operating on device 1500, contact data, phonebook data, messages, pictures, videos, etc. Memory 1504 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0124] Power supply component 1506 provides power to various components of device 1500. Power supply component 1506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 1500.

[0125] Multimedia component 1508 includes a screen that provides an output interface between the device 1500 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1508 includes a front-facing camera and / or a rear-facing camera. When the device 1500 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0126] Audio component 1510 is configured to output and / or input audio signals. For example, audio component 1510 includes a microphone (MIC) configured to receive external audio signals when device 1500 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1504 or transmitted via communication component 1516. In some embodiments, audio component 1510 also includes a speaker for outputting audio signals.

[0127] I / O interface 1512 provides an interface between processing component 1502 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0128] Sensor assembly 1514 includes one or more sensors for providing status assessments of various aspects of device 1500. For example, sensor assembly 1514 may detect the on / off state of device 1500, the relative positioning of components such as the display and keypad of device 1500, changes in the position of device 1500 or a component of device 1500, the presence or absence of user contact with device 1500, the orientation or acceleration / deceleration of device 1500, and temperature changes of device 1500. Sensor assembly 1514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1514 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0129] Communication component 1516 is configured to facilitate wired or wireless communication between device 1500 and other devices. Device 1500 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 1516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1516 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0130] In an exemplary embodiment, the apparatus 1500 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0131] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1504 including instructions, which can be executed by a processor 1520 of the device 1500 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0132] Figure 16 This is a block diagram illustrating a bandwidth configuration 1600 according to an exemplary embodiment. For example, the device 1600 may be provided as a base station. (Refer to...) Figure 16 The apparatus 1600 includes a processing component 1622, which further includes one or more processors, and memory resources represented by memory 1632 for storing instructions, such as application programs, that can be executed by the processing component 1622. The application programs stored in memory 1632 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1622 is configured to execute instructions to perform the aforementioned unlicensed channel access method.

[0133] Device 1600 may also include a power supply component 1626 configured to perform power management of device 1600, a wired or wireless network interface 1650 configured to connect device 1600 to a network, and an input / output (I / O) interface 1659. Device 1600 can operate on an operating system stored in memory 1632, such as Windows Server™, MacOS X™, Unix™, Linux™, FreeBSD™, or similar.

[0134] Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the present disclosure that follow the general principles of the embodiments of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of the present disclosure are indicated by the following claims.

[0135] It should be understood that the embodiments disclosed herein are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments disclosed herein is limited only by the appended claims.

[0136] Industrial applicability By determining the default BWP to which a user equipment (UE) should switch, and allowing the UE to switch to the initial downlink BWP with narrower bandwidth when it has not received a scheduled DCI for an extended period, the power consumption of the UE can be reduced, making it more suitable for 5G NR-lite systems.

Claims

1. A bandwidth configuration method, executed by a user equipment and a network device, comprising: The network device configures the user equipment with a random access channel for sending random access information, as well as a physical layer channel and a random access search space. The physical layer channel is used to carry a random access response corresponding to the random access information. The network device configures multiple initial downlink bandwidth portions (BWPs) and one initial uplink BWP for the user equipment. One of the multiple initial downlink BWPs is a first initial downlink BWP. The initial uplink BWP includes the random access channel, and the first initial downlink BWP includes the physical layer channel and the random access search space. The user equipment determines one of the plurality of initial downlink BWPs as the default BWP; wherein the default BWP is the first initial downlink BWP; After the user equipment determines that the first timer has expired, it switches to the target BWP, which is the default BWP. The first timer is used to count the duration for which the user equipment does not receive scheduling downlink control information while the BWP is active.

2. A bandwidth configuration method, executed by a user equipment and a network device, comprising: The network device configures the user equipment with a random access channel for sending random access information, as well as a physical layer channel and a random access search space. The physical layer channel is used to carry a random access response corresponding to the random access information. The network device configures multiple initial downlink bandwidth portions (BWPs) and uplink BWPs for the user equipment. One of the multiple initial downlink BWPs is an initial downlink BWP configured via MIB. The uplink BWP includes the random access channel, and the initial downlink BWP configured via MIB includes the physical layer channel and the random access search space. The user equipment determines one of the plurality of initial downlink BWPs as the default BWP; wherein, the default BWP is the initial downlink BWP configured through the MIB; After the user equipment determines that the first timer has expired, it switches to the target BWP, which is the default BWP. The first timer is used to count the duration for which the user equipment does not receive scheduling downlink control information while the BWP is active.

3. A bandwidth configuration method, executed by a user equipment, comprising: The user equipment is configured with multiple initial downlink BWPs; After the BWP inactivity timer expires, the user equipment switches to a target BWP among multiple initial downlink BWPs. The BWP inactivity timer is used to time the duration for which the user equipment does not receive scheduling downlink control information on the active BWP. The target BWP is a first initial downlink BWP, which includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry a random access response corresponding to the random access information. Furthermore, the initial uplink BWP corresponding to the first initial downlink BWP includes a random access channel configured for the user equipment to send random access information.

4. A bandwidth configuration method, executed by a user equipment, comprising: The user equipment is configured with multiple initial downlink BWPs; After the BWP inactivity timer expires, the user equipment switches to a target BWP among multiple initial downlink BWPs. The BWP inactivity timer is used to time the duration for which the user equipment does not receive scheduling downlink control information on the active BWP. The target BWP is an initial downlink BWP configured via MIB. The initial downlink BWP configured via MIB includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry a random access response corresponding to the random access information. Furthermore, the uplink BWP corresponding to the initial downlink BWP configured via MIB includes a random access channel configured for the user equipment to send random access information.

5. A bandwidth configuration method, executed by a network device, comprising: The network device configures multiple initial downlink BWPs for the user equipment; wherein, the multiple initial downlink BWPs include a target BWP, which is the BWP that the user equipment switches to after the BWP inactivity timer expires. The BWP inactivity timer is used to time the duration for which the user equipment does not receive scheduling downlink control information on the active BWP. The target BWP is a first initial downlink BWP, which is a BWP that includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry a random access response corresponding to the random access information. Furthermore, the initial uplink BWP corresponding to the first initial downlink BWP includes a random access channel configured for the user equipment for sending random access information.

6. A bandwidth configuration method, executed by a network device, comprising: The network device configures multiple initial downlink BWPs for the user equipment. These initial downlink BWPs include a target BWP, which is the BWP the user equipment switches to after a BWP inactivity timer expires. The BWP inactivity timer is used to time the duration for which the user equipment does not receive scheduling downlink control information on an active BWP. The target BWP is an initial downlink BWP configured via a MIB, which includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry a random access response corresponding to the random access information. Furthermore, the uplink BWP corresponding to the initial downlink BWP configured via the MIB includes a random access channel configured for the user equipment to send random access information.

7. A bandwidth configuration apparatus, applied to a user equipment, comprising: The user equipment is configured with multiple initial downlink BWPs; The processing module is configured to, after the BWP inactivity timer expires, switch the user equipment to a target BWP among multiple initial downlink BWPs. The BWP inactivity timer is used to time the duration for which the user equipment has not received scheduling downlink control information on an active BWP. The target BWP is a first initial downlink BWP, which includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry a random access response corresponding to the random access information. Furthermore, the initial uplink BWP corresponding to the first initial downlink BWP includes a random access channel configured for the user equipment to send random access information.

8. A bandwidth configuration apparatus, applied to a user equipment, comprising: The user equipment is configured with multiple initial downlink BWPs; The processing module is configured to, after the BWP inactivity timer expires, switch the user equipment to a target BWP among multiple initial downlink BWPs. The BWP inactivity timer is used to count the duration for which the user equipment has not received scheduling downlink control information on an active BWP. The target BWP is an initial downlink BWP configured via MIB, which includes a physical layer channel and a random access search space configured for the user equipment. The physical layer channel is used to carry a random access response corresponding to the random access information. Furthermore, the uplink BWP corresponding to the initial downlink BWP configured via MIB includes a random access channel configured for the user equipment to transmit random access information.

9. A bandwidth configuration apparatus, applied to a network device, comprising: The processing module is configured such that the network device configures multiple initial downlink BWPs for the user equipment; wherein the multiple initial downlink BWPs include a target BWP, which is the BWP that the user equipment switches to after the BWP inactivity timer expires, the BWP inactivity timer is used to time the duration for which the user equipment does not receive scheduling downlink control information on the active BWP, the target BWP is a first initial downlink BWP, the first initial downlink BWP is a BWP that includes a physical layer channel and a random access search space configured for the user equipment, the physical layer channel is used to carry a random access response corresponding to the random access information; and the initial uplink BWP corresponding to the first initial downlink BWP includes a random access channel configured for the user equipment to send random access information.

10. A bandwidth configuration apparatus, applied to a network device, comprising: The processing module is configured such that the network device configures multiple initial downlink BWPs for the user equipment; wherein the multiple initial downlink BWPs include a target BWP, which is the BWP that the user equipment switches to after the BWP inactivity timer expires, the BWP inactivity timer is used to time the duration for which the user equipment does not receive scheduling downlink control information on the active BWP, the target BWP is an initial downlink BWP configured through MIB, the initial downlink BWP configured through MIB includes a physical layer channel and a random access search space configured for the user equipment, the physical layer channel is used to carry a random access response corresponding to the random access information; and the uplink BWP corresponding to the initial downlink BWP configured through MIB includes a random access channel configured for the user equipment for sending random access information.

11. A mobile terminal, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the bandwidth portion configuration method of claim 3 or 4.

12. A network-side device, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the bandwidth portion configuration method of claim 5 or 6.

13. A non-transitory computer-readable storage medium having stored executable instructions thereon, which, when executed by a processor, implement the steps of the bandwidth portion configuration method of any one of claims 3 to 6.

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