Method for managing partial bandwidth, base station and communication system

Abstract

The present disclosure proposes a method for managing partial bandwidth, a base station and a communication system, and relates to the field of communication. The method for managing partial bandwidth includes: the base station queries the terminal capability reported by the terminal; the base station determines whether the terminal supports unlimited partial bandwidth according to the terminal capability; if the terminal supports unlimited partial bandwidth, the base station configures a dedicated partial bandwidth for the terminal according to the cell where the terminal is located, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth. Thus, an adaptive partial bandwidth management method capable of reducing interference between cells is realized, and network performance and user experience are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and in particular to a method for managing partial bandwidth, a base station, and a communication system. Background Art

[0002] The 5G (5th Generation Mobile Network) network supports a large bandwidth, but the terminal power consumption affects the terminal battery life. One solution requires the network to configure a small bandwidth BWP (Bandwidth Part) to achieve energy saving. In order to improve power saving performance, the smaller the BWP bandwidth, the better. However, the smaller the BWP bandwidth, the greater the scheduling probability of frequency domain resources within the small BWP. Figure 1 As shown, in actual network deployment, the frequency domain positions of small BWPs in different cells are the same. Thus, when each cell schedules resources at the corresponding frequency domain position of the small BWP, co-frequency interference between cells, especially between adjacent cells, is serious, affecting user experience. Summary of the invention

[0003] The disclosed embodiment proposes an adaptive BWP management method capable of reducing interference between cells, so that the BWPs of different cells are randomly distributed within the carrier bandwidth, thereby reducing interference between cells and improving network performance and user experience.

[0004] Some embodiments of the present disclosure provide a method for managing a portion of bandwidth, including:

[0005] The base station queries the terminal capabilities reported by the terminal;

[0006] The base station determines whether the terminal supports the unlimited partial bandwidth based on the terminal capability;

[0007] If the terminal supports unrestricted partial bandwidth, the base station configures a dedicated partial bandwidth for the terminal according to the cell where the terminal is located, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

[0008] In some embodiments, the base station configures a dedicated partial bandwidth for the terminal according to the cell where the terminal is located, including: the base station configures a dedicated partial bandwidth for the terminal according to the physical cell identifier of the cell where the terminal is located and in combination with the carrier bandwidth and the bandwidth of the partial bandwidth.

[0009] In some embodiments, the base station configures a dedicated partial bandwidth for the terminal based on the physical cell identifier of the cell where the terminal is located and in combination with the carrier bandwidth and the bandwidth of the partial bandwidth, including: the base station configures the starting resource block of the dedicated partial bandwidth for the terminal as PRBi, where the index i of the physical resource block PRB is determined according to the following formula, i = [PCI mod Floor (carrier bandwidth / bandwidth of partial bandwidth)] × bandwidth of partial bandwidth, where PCI represents the physical cell identifier of the cell where the terminal is located, mod represents modulo operation, and Floor represents rounding down operation.

[0010] In some embodiments, different cells with the same location of the starting resource blocks of the dedicated bandwidth portion maintain a preset degree of isolation in geographical locations.

[0011] In some embodiments, different cells having the same location of the starting resource blocks of the dedicated bandwidth portion are not configured as neighboring cells.

[0012] In some embodiments, it also includes: if the terminal does not support unlimited partial bandwidth, the base station configures partial bandwidth at a specified frequency domain position for the terminal.

[0013] In some embodiments, the exclusive portion of bandwidth includes a small exclusive portion of bandwidth having a bandwidth less than a preset value.

[0014] Some embodiments of the present disclosure provide a base station for managing a portion of bandwidth, including:

[0015] A query module, configured to query terminal capabilities reported by the terminal;

[0016] A determination module, configured to determine whether the terminal supports unlimited partial bandwidth according to the terminal capability;

[0017] The configuration module is configured to configure a dedicated partial bandwidth for the terminal according to the cell where the terminal is located if the terminal supports the unlimited partial bandwidth, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

[0018] In some embodiments, the configuration module is configured to configure a dedicated partial bandwidth for the terminal if the terminal supports unrestricted partial bandwidth, based on the physical cell identifier of the cell where the terminal is located and in combination with the carrier bandwidth and the bandwidth of the partial bandwidth, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

[0019] In some embodiments, the configuration module is configured to configure the starting resource block of the dedicated partial bandwidth for the terminal as PRBi, wherein the index i of the physical resource block PRB is determined according to the following formula, i = [PCI mod Floor (carrier bandwidth / bandwidth of partial bandwidth)] × bandwidth of partial bandwidth, wherein PCI represents the physical cell identifier of the cell where the terminal is located, mod represents modulo operation, and Floor represents rounding down operation.

[0020] In some embodiments, the configuration module is further configured to configure different cells with the same location of the starting resource blocks of the dedicated portion of bandwidth to maintain a preset degree of isolation in geographical location.

[0021] In some embodiments, the configuration module is further configured to configure a partial bandwidth at a specified frequency domain position for the terminal if the terminal does not support unlimited partial bandwidth.

[0022] Some embodiments of the present disclosure provide a base station for managing partial bandwidth, including: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the method for managing partial bandwidth of each embodiment based on instructions stored in the memory.

[0023] Some embodiments of the present disclosure propose a communication system, including: a base station for managing partial bandwidth of each embodiment and a terminal, wherein the terminal is configured to report whether the terminal capability supports unlimited partial bandwidth and perform data transmission according to the dedicated partial bandwidth configured by the base station.

[0024] Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the steps of the method for managing a portion of bandwidth of each embodiment are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. The present disclosure can be more clearly understood according to the following detailed description with reference to the drawings.

[0026] Obviously, the drawings described below are only some embodiments of the present disclosure, and a person skilled in the art can obtain other drawings based on these drawings without creative work.

[0027] Figure 1 A schematic diagram showing co-channel interference of small BWPs in different cells.

[0028] Figure 2 A flowchart of a method for managing partial bandwidth according to some embodiments of the present disclosure is shown.

[0029] Figure 3A schematic diagram showing how a base station in some embodiments of the present disclosure configures a dedicated portion of bandwidth for a terminal according to a formula.

[0030] Figure 4 A schematic diagram of a communication system for managing partial bandwidth according to some embodiments of the present disclosure is shown.

[0031] Figure 5 A schematic diagram illustrating a base station managing partial bandwidth according to some embodiments of the present disclosure.

[0032] Figure 6 A schematic diagram illustrating a base station managing partial bandwidth according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure.

[0034] Unless otherwise specified, descriptions such as “first” and “second” in the present disclosure are used to distinguish different objects and are not used to indicate meanings such as size or time sequence.

[0035] Figure 2 A flowchart of a method for managing partial bandwidth according to some embodiments of the present disclosure is shown.

[0036] like Figure 2 As shown, the method for managing partial bandwidth in this embodiment includes steps 210-250.

[0037] In step 210, the base station configures the bandwidth of the carrier and the bandwidth of the partial bandwidth.

[0038] In step 220, the terminal reports its terminal capabilities to the base station in advance, and the base station queries the terminal capabilities reported by the terminal. The terminal capabilities include, for example, whether the terminal supports unlimited partial bandwidth (BWP-WithoutRestriction).

[0039] In step 230, the base station determines whether the terminal supports unrestricted partial bandwidth according to the terminal capability, and executes step 240 or step 250 according to different determination results.

[0040] In step 240, if the terminal supports unrestricted partial bandwidth, the base station configures a dedicated partial bandwidth for the terminal according to the cell where the terminal is located, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

[0041] The base station configures a dedicated bandwidth at a corresponding frequency domain position for the terminal according to the cell where the terminal is located. Different cells are configured with dedicated bandwidths at different frequency domain positions within the carrier bandwidth, so that the dedicated bandwidths of different cells are randomly distributed within the carrier bandwidth, thereby reducing interference between cells.

[0042] In some embodiments, the base station configures a dedicated partial bandwidth for the terminal according to the cell where the terminal is located, including: the base station configures a dedicated partial bandwidth for the terminal according to the physical cell identifier of the cell where the terminal is located and in combination with the carrier bandwidth and the bandwidth of the partial bandwidth.

[0043] In some embodiments, the base station configures a dedicated partial bandwidth for the terminal based on the physical cell identifier of the cell where the terminal is located and in combination with the carrier bandwidth and the bandwidth of the partial bandwidth, including: the base station configures the starting resource block of the dedicated partial bandwidth for the terminal as PRBi, where the index i of the physical resource block PRB is determined according to the following formula, i = [PCI mod Floor (carrier bandwidth / bandwidth of partial bandwidth)] × bandwidth of partial bandwidth, where PCI represents the physical cell identifier of the cell where the terminal is located, mod represents modulo operation, and Floor represents rounding down operation.

[0044] Figure 3 FIG. 4 shows a schematic diagram of a base station configuring a dedicated bandwidth for a terminal according to the above formula. Figure 3 As shown, the dedicated partial bandwidths corresponding to cell PCIs 0 to 5 are respectively located at different frequency domain positions within the carrier bandwidth, and the dedicated partial bandwidths corresponding to cell PCIs 6 to 11 are respectively located at different frequency domain positions within the carrier bandwidth. Carrier bandwidth / partial bandwidth bandwidth=6, taking cell PCI 0 as an example, i=[0mod Floor(6)]×3=0, taking cell PCI 1 as an example, i=[1mod Floor(6)]×3=3.

[0045] In addition, the base station configures a dedicated bandwidth for the terminal according to the cell where the terminal is located. In addition to the above configuration scheme, other configuration schemes can also be adopted. For example, a mapping relationship is established between each cell and its dedicated bandwidth. In the mapping relationship, the dedicated bandwidths of different cells are randomly distributed within the carrier bandwidth. For example, the dedicated bandwidths of different cells are located at different frequency domain positions within the carrier bandwidth.

[0046] In some embodiments, different cells with the same starting resource block of the dedicated bandwidth maintain a preset degree of isolation in terms of geographical location. For example, different cells with the same starting resource block of the dedicated bandwidth are not configured as adjacent cells. Figure 3 For example, if the starting resource blocks of the dedicated bandwidths corresponding to cell PCI 0 and cell PCI 6 are at the same position, then cell PCI 0 and cell PCI 6 may be configured not to be adjacent cells, thereby reducing the co-channel interference between adjacent cells.

[0047] BWP is a terminal energy saving solution. The smaller the bandwidth of BWP is, the better the energy saving performance is. Therefore, in some embodiments, the dedicated portion of bandwidth includes a small dedicated portion of bandwidth whose bandwidth is less than a preset value.

[0048] In step 250, if the terminal does not support unlimited partial bandwidth, the base station configures a partial bandwidth at a designated frequency domain position for the terminal.

[0049] Among them, each BWP can have different frequencies and bandwidths, and each BWP can correspond to different configurations. For example, the subcarrier spacing, CP (Cyclic Prefix) type, SSB period, etc. of each BWP can be configured differently to adapt to different services. Among them, SSB refers to the synchronization signal and PBCH block (Synchronization Signal and PBCHblock), which consists of three parts: primary synchronization signal (PSS), secondary synchronization signal (SSS), and PBCH (Physical Broadcast Channel).

[0050] The disclosed embodiment proposes an adaptive BWP management method capable of reducing interference between cells, so that the BWPs of different cells are randomly distributed within the carrier bandwidth, thereby reducing interference between cells (especially between adjacent cells) and improving network performance (such as network capacity) and user experience.

[0051] Figure 4 A schematic diagram of a communication system for managing partial bandwidth according to some embodiments of the present disclosure is shown.

[0052] like Figure 4 As shown, the communication system 400 of this embodiment includes: a base station 410 for managing a portion of bandwidth and a terminal 420.

[0053] The base station 410 queries the terminal capability reported by the terminal; determines whether the terminal supports unlimited partial bandwidth according to the terminal capability; if the terminal supports unlimited partial bandwidth, configures the terminal with a dedicated partial bandwidth according to the cell where the terminal is located, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth. In some embodiments, the base station 410 configures the terminal with a dedicated partial bandwidth according to the physical cell identifier of the cell where the terminal is located, and in combination with the carrier bandwidth and the bandwidth of the partial bandwidth. In some embodiments, the base station 410 configures the starting resource block of the dedicated partial bandwidth for the terminal as PRBi, wherein the index i of the physical resource block PRB is determined according to the following formula, i=[PCI mod Floor(carrier bandwidth / bandwidth of partial bandwidth)]×bandwidth of partial bandwidth, wherein PCI represents the physical cell identifier of the cell where the terminal is located, mod represents a modulo operation, and Floor represents a rounding operation. In some embodiments, different cells with the same location of the starting resource block for configuring the dedicated partial bandwidth maintain a preset degree of isolation in terms of geographical location.

[0054] The terminal 420 reports whether the terminal capability supports the unlimited partial bandwidth, and performs data transmission according to the dedicated partial bandwidth configured by the base station.

[0055] Figure 5 A schematic diagram illustrating a base station managing partial bandwidth according to some embodiments of the present disclosure.

[0056] like Figure 5 As shown, the base station 410 for managing partial bandwidth of this embodiment includes modules 510-530.

[0057] The query module 510 is configured to query the terminal capabilities reported by the terminal.

[0058] The determination module 520 is configured to determine whether the terminal supports the unlimited partial bandwidth according to the terminal capability.

[0059] The configuration module 530 is configured to configure a dedicated partial bandwidth for the terminal according to the cell where the terminal is located if the terminal supports the unlimited partial bandwidth, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

[0060] In some embodiments, the configuration module 530 is configured to configure a dedicated partial bandwidth for the terminal if the terminal supports unrestricted partial bandwidth, based on the physical cell identifier of the cell where the terminal is located, and in combination with the carrier bandwidth and the bandwidth of the partial bandwidth, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

[0061] In some embodiments, the configuration module 530 is configured to configure the starting resource block of the dedicated partial bandwidth for the terminal as PRBi, wherein the index i of the physical resource block PRB is determined according to the following formula, i = [PCI mod Floor (carrier bandwidth / bandwidth of partial bandwidth)] × bandwidth of partial bandwidth, wherein PCI represents the physical cell identifier of the cell where the terminal is located, mod represents a modulo operation, and Floor represents a rounding-down operation.

[0062] In some embodiments, the configuration module 530 is further configured to configure different cells with the same starting resource block of the dedicated bandwidth to maintain a preset degree of isolation in geographical location. For example, different cells with the same starting resource block of the dedicated bandwidth are not configured as adjacent cells.

[0063] In some embodiments, the configuration module 530 is further configured to configure a partial bandwidth at a specified frequency domain position for the terminal if the terminal does not support unlimited partial bandwidth.

[0064] Figure 6 A schematic diagram illustrating a base station managing partial bandwidth according to some embodiments of the present disclosure.

[0065] like Figure 6 As shown, the base station 410 for managing partial bandwidth of this embodiment includes a memory 610 and a processor 620 coupled to the memory 610 , and the processor 620 is configured to execute the method for managing partial bandwidth of each embodiment based on the instructions stored in the memory 610 .

[0066] The memory 610 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, and other programs.

[0067] The processor 620 may be implemented by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistors and other discrete hardware components.

[0068] The base station 410 may also include an input / output interface 630, a network interface 640, a storage interface 650, etc. These interfaces 630, 640, 650 and the memory 610 and the processor 620 may be connected, for example, via a bus 660. Among them, the input / output interface 630 provides a connection interface for input / output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networked devices. The storage interface 650 provides a connection interface for external storage devices such as SD cards and USB flash drives. The bus 660 may use any of a variety of bus structures. For example, the bus structure includes, but is not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, and a Peripheral Component Interconnect (PCI) bus.

[0069] Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the steps of the method for managing a portion of bandwidth of each embodiment are implemented.

[0070] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more non-transient computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer program code.

[0071] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0072] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0073] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0074] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A method for managing a portion of bandwidth, characterized in that: include: The base station queries the terminal capabilities reported by the terminal; The base station determines whether the terminal supports the unlimited partial bandwidth based on the terminal capability; If the terminal supports unrestricted partial bandwidth, the base station randomly configures a dedicated partial bandwidth for the terminal within the carrier bandwidth according to the cell where the terminal is located, including: the starting resource block for the base station to configure the dedicated partial bandwidth for the terminal is PRBi, where the index i of the physical resource block PRB is determined according to the following formula, i = [PCI mod Floor(carrier bandwidth / bandwidth of partial bandwidth)]×bandwidth of partial bandwidth, where PCI represents the physical cell identifier of the cell where the terminal is located, mod represents a modulo operation, and Floor represents a rounding-down operation, where the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

2. The method according to claim 1, characterized in that Different cells with the same location of the starting resource block of the dedicated bandwidth portion maintain a preset degree of isolation in terms of geographical location.

3. The method according to claim 2, characterized in that Different cells with the same location of the starting resource block of the dedicated bandwidth portion are not configured as adjacent cells.

4. The method according to claim 1, characterized in that: Also includes: If the terminal does not support unlimited partial bandwidth, the base station configures partial bandwidth at a specified frequency domain position for the terminal.

5. The method according to any one of claims 1 to 4, characterized in that: The dedicated portion bandwidth includes a small dedicated portion bandwidth having a bandwidth smaller than a preset value.

6. A base station for managing a portion of bandwidth, characterized in that: include: A query module, configured to query terminal capabilities reported by the terminal; A determination module, configured to determine whether the terminal supports unlimited partial bandwidth according to the terminal capability; The configuration module is configured to randomly configure a dedicated partial bandwidth for the terminal within the carrier bandwidth according to the cell where the terminal is located if the terminal supports unrestricted partial bandwidth, including: the starting resource block for the base station to configure the dedicated partial bandwidth for the terminal is PRBi, wherein the index i of the physical resource block PRB is determined according to the following formula, i = [PCI mod Floor(carrier bandwidth / bandwidth of partial bandwidth)]×bandwidth of partial bandwidth, wherein PCI represents the physical cell identifier of the cell where the terminal is located, mod represents a modulo operation, and Floor represents a rounding-down operation, wherein the dedicated partial bandwidths of different cells are randomly distributed within the carrier bandwidth.

7. The base station according to claim 6, characterized in that The configuration module is further configured to configure different cells with the same location of the starting resource blocks of the dedicated bandwidth portion to maintain a preset degree of isolation in geographical location.

8. The base station according to claim 6, characterized in that The configuration module is further configured to configure a partial bandwidth at a specified frequency domain position for the terminal if the terminal does not support unlimited partial bandwidth.

9. A base station for managing a portion of bandwidth, characterized in that: include: Memory; and a processor coupled to the memory, wherein the processor is configured to execute the method according to any one of claims 1 to 5 based on instructions stored in the memory.

10. A communication system, characterized in that: include: The base station and terminal as described in any one of claims 6 to 9, wherein the terminal is configured to report whether the terminal capability supports unlimited partial bandwidth, and to transmit data according to the dedicated partial bandwidth configured by the base station.

11. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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