CN115996472A - Resource allocation method and related equipment - Google Patents

Abstract

The embodiment of the disclosure provides a resource configuration method and related equipment. The method comprises the following steps: the network equipment maps a plurality of sections of frequency spectrums with different subcarrier intervals into virtual bandwidths V-BW; the network equipment sends the configuration information of the V-BW to a terminal through a first configuration message, wherein the configuration information of the V-BW comprises virtual physical resource blocks V-PRB forming the V-BW and resource mapping information between the V-PRB and virtual public resource blocks V-CRB; the network device configures a partial virtual bandwidth V-BWP for the terminal through a second configuration message, wherein each V-BWP is a section of frequency spectrum of the V-BW; when the terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling.

Description

Resource allocation method and related equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a resource allocation method, a network device, a terminal, and a computer readable storage medium.

Background

As a main technology of the next Generation wireless network, 5G (5 Generation, fifth Generation mobile communication system) is required to support not only a larger system capacity and a higher data rate but also higher energy efficiency. NR (New Radio), which is a New design that supports multiple application scenarios and services and a larger candidate spectrum range (within 52.6 GHz), a more flexible parameter set, a larger bandwidth, a lower delay, and more antennas, brings New challenges to terminal power consumption.

5G is a main technology of the next generation wireless network, and will support various services and terminals with different forms. The terminal will not use unified bandwidth any more, the terminal with high transmission rate requires large bandwidth, and the terminal with low transmission rate requires only narrow bandwidth. Under the adaptive bandwidth (Bandwidth Adaption, BA) technology, the receiving and transmitting bandwidths of the UE (User Equipment/terminal) need not be as large as the carrier bandwidth of the base station, and can be configured by the gNB (5G base station), including bandwidth configuration, frequency resource location, subcarrier spacing configuration, and the like. Such a resource allocation and transmission manner for some terminals, where the Bandwidth size is a fraction of the entire base station carrier Bandwidth, is referred to as fractional Bandwidth Part (BWP) transmission.

However, in the current standard, in consideration of the influence of signaling overhead and complexity, BWP can only cut off a part of bandwidth from one carrier bandwidth (a section of spectrum), and thus, spectrum resource utilization and terminal rate cannot be further improved.

Disclosure of Invention

The embodiment of the disclosure provides a resource allocation method, network equipment, a terminal and a computer readable storage medium, which can improve the utilization rate of spectrum resources and the rate of the terminal.

The embodiment of the disclosure provides a resource allocation method, which comprises the following steps: the network equipment maps a plurality of sections of frequency spectrums with different subcarrier intervals into virtual bandwidths V-BW; the network equipment sends the configuration information of the V-BW to a terminal through a first configuration message, wherein the configuration information of the V-BW comprises virtual physical resource blocks V-PRB forming the V-BW and resource mapping information between the V-PRB and virtual public resource blocks V-CRB; the network device configures a partial virtual bandwidth V-BWP for the terminal through a second configuration message, wherein each V-BWP is a section of frequency spectrum of the V-BW; when the terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling. The method provided by the embodiment of the present disclosure may be performed by a network device, or may be performed by a chip configured in the network device, which is not limited in this disclosure.

The embodiment of the disclosure provides a resource allocation method, which comprises the following steps: the method comprises the steps that a terminal receives a first configuration message sent by network equipment, wherein the first configuration message comprises configuration information of virtual bandwidth V-BW, the configuration information of the V-BW comprises virtual physical resource blocks V-PRB forming the V-BW and resource mapping information between the V-PRB and virtual public resource blocks V-CRB, and the V-BW is generated by multiple segments of frequency spectrum mapping with different subcarrier intervals; the terminal receives a second configuration message sent by the network device, wherein the second configuration message is used for configuring partial virtual bandwidth V-BWP for the terminal, and each V-BWP is a section of frequency spectrum of the V-BW; when the terminal service changes, the terminal receives the control signaling sent by the network device, where the control signaling is used to dynamically switch the activated V-BWP for the terminal. The method provided by the embodiment of the present disclosure may be performed by a terminal, or may be performed by a chip configured in the terminal, which is not limited in this disclosure.

The embodiment of the disclosure provides a network device, comprising: a first processing unit, configured to map multiple segments of spectrum having different subcarrier spacings into virtual bandwidths V-BW; a first communication unit, configured to send configuration information of the V-BW to a terminal through a first configuration message, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs forming the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs; the first communication unit is further configured to configure, for the terminal, a partial virtual bandwidth V-BWP through a second configuration message, each V-BWP being a section of spectrum of the V-BW; the first communication unit is further configured to dynamically switch the activated V-BWP for the terminal through control signaling when a terminal service changes. The first processing unit and the first communication unit included in the network device may be implemented in a software and/or hardware manner.

The embodiment of the disclosure provides a terminal, which comprises: a second communication unit, configured to receive a first configuration message sent by a network device, where the first configuration message includes configuration information of a virtual bandwidth V-BW, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs forming the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs, where the V-BW is generated by multiple segments of spectrum mapping having different subcarrier intervals; the second communication unit is further configured to receive a second configuration message sent by the network device, where the second configuration message is configured to configure a partial virtual bandwidth V-BWP for the terminal, and each V-BWP is a section of spectrum of the V-BW; the second communication unit is further configured to receive a control signaling sent by the network device when a terminal service changes, where the control signaling is used to dynamically switch the activated V-BWP for the terminal. The second communication unit included in the terminal may be implemented in a software and/or hardware manner.

Embodiments of the present disclosure provide a network device including at least one processor and a communication interface. The communication interface is used for information interaction between the network device and other communication devices, and when the program instructions are executed in the at least one processor, the method in any one of the possible implementation manners of the above embodiment is implemented.

Optionally, the network device may further comprise a memory. The memory is used for storing programs and data.

Optionally, the network device comprises a base station.

Embodiments of the present disclosure provide a terminal comprising at least one processor and a communication interface. The communication interface is used for information interaction between the terminal and other communication devices, and when the program instructions are executed in the at least one processor, the method in any one of the possible implementation manners of the above embodiment is implemented.

Optionally, the terminal may further comprise a memory. The memory is used for storing programs and data.

The disclosed embodiments provide a computer readable storage medium having stored thereon a computer program for execution by a communication device, which when executed by a processor, implements a method in any one of the possible implementations of the embodiments described above.

For example, the computer readable storage medium may have stored therein a computer program for execution by a network device, which when executed by a processor, implements instructions of the method performed by the network device as in the above embodiments.

For example, the computer readable storage medium may store therein a computer program for execution by a terminal, which when executed by a processor, implements instructions of the method performed by the terminal as in the above embodiments.

Embodiments of the present disclosure provide a computer program product containing instructions. The computer program product, when run on a communication device, causes the communication device to execute instructions of the method in the above-described parties or any one of the possible implementations of the above-described parties.

For example, the computer program product, when executed on a terminal, causes the terminal to execute instructions of the method in any of the possible implementations of the embodiments described above.

Embodiments of the present disclosure provide a computer program product containing instructions. The computer program product, when run on a network device, causes the network device to execute instructions of the method in the above-described parties or any one of the possible implementations of the above-described parties.

For example, the computer program product, when executed on a base station, causes the base station to perform the instructions of the method in any one of the possible implementations of the embodiments described above.

The disclosed embodiments provide a system chip comprising an input-output interface and at least one processor for invoking instructions in a memory to perform the operations of the method in any of the above-described possible implementations.

Optionally, the system chip may further include at least one memory for storing instructions for execution by the processor and a bus.

The embodiment of the disclosure provides a wireless communication system, which comprises the terminal and network equipment.

In some embodiments of the present disclosure, a network device maps multiple segments of spectrum having different subcarrier intervals into virtual bandwidth V-BW, and then the network device sends configuration information of the V-BW to a terminal through a first configuration message, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs constituting the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs; the network device configures a partial virtual bandwidth V-BWP for the terminal through a second configuration message, wherein each V-BWP is a section of frequency spectrum of the V-BW; when the terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling, thereby improving the utilization rate of spectrum resources and the terminal rate.

Drawings

Fig. 1 schematically illustrates an application scenario diagram of a resource allocation method according to an embodiment of the present disclosure.

Fig. 2 schematically illustrates a flow chart of a resource allocation method according to an embodiment of the present disclosure.

Fig. 3 schematically illustrates a schematic diagram of a V-CRB according to an embodiment of the present disclosure.

Fig. 4 schematically shows a schematic diagram of a V-PRB according to an embodiment of the present disclosure.

Fig. 5 schematically illustrates a mapping diagram between V-PRBs and V-CRBs according to an embodiment of the present disclosure.

Fig. 6 schematically illustrates a schematic diagram of V-BWP according to an embodiment of the present disclosure.

Fig. 7 schematically illustrates a flow chart of a resource allocation method according to another embodiment of the present disclosure.

Fig. 8 schematically illustrates a flow chart of a resource allocation method according to yet another embodiment of the present disclosure.

Fig. 9 schematically illustrates a schematic block diagram of a network device according to an embodiment of the disclosure.

Fig. 10 schematically shows a schematic block diagram of a terminal according to an embodiment of the present disclosure.

Fig. 11 schematically illustrates a schematic block diagram of an electronic device according to an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

In the description of the present disclosure, unless otherwise indicated, "/" means "or" and, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.

First, some terms that may be involved in the embodiments of the present disclosure will be explained.

3GPP:3rd Generation Partnership Project, the third generation partnership project.

NR: english abbreviation of New Radio, new air interface or New Radio.

RRC: radio Resource Control, i.e. radio resource control.

LTE: long Term Evolution, long term evolution.

PCI: physical Cell Identifier, i.e. physical cell identity.

UMTS: universal Mobile Telecommunication System, the generic mobile communication system.

E-UTRAN: evolved UMTS Terrestrial Radio Access Network, evolved UMTS terrestrial radio access network.

eNB: the acronym for E-UTRAN NodeB is E-UTRAN base station node.

PBCH: physical Broadcast Channel, i.e. the physical broadcast channel.

SSB: synchronization Signal and PBCH block, i.e. synchronization signal and PBCH block.

DMRS: demodulation Reference Signal, i.e. demodulation reference signal.

CRS: cell Reference Signal, cell reference signal.

NOMA: the english abbreviation of Non-orthogonal Multiple-access, i.e., non-orthogonal multiple access technology.

OMA: orthogonal Multiple-english abbreviation of access, orthogonal multiple access technology.

RE: resource Element, an english abbreviation for Resource Element.

PDSCH: physical Downlink Shared Channel, i.e. physical downlink shared channel or physical downlink shared channel.

PDCCH: physical Downlink Control Channel, i.e. physical downlink control channel or physical downlink control channel.

PUSCH: physical Uplink Shared Channel, i.e. physical uplink shared channel or physical uplink shared channel.

PUCCH: physical Uplink Control Channel, i.e. physical uplink control channel or physical uplink control channel.

DCI: downlink Control Information, downlink control information or downlink control information.

LTE: long Term Evolution, long term evolution.

PRB: physical Resource Block, i.e. physical resource blocks.

RBG: resource Block Groups, i.e., resource block groups.

CSI: channel State Information, i.e. channel state information, includes CQI (Channel Quality Indication, channel quality Indicator), PMI (Precoding Matrix Indicator ), RI (Rank Indicator), etc. information, which is used to tell the base station the quality of the downlink channel, etc. to assist the base station in downlink scheduling, including multi-antenna and beamforming schemes.

CSI-RS: wherein RS is an english abbreviation of reference signals, i.e. reference signal.

OFDM: orthogonal Frequency Division Multiplexing, i.e., orthogonal frequency division multiplexing.

BWP: the english abbreviation of Bandwidth Part, i.e. Bandwidth Part/partial Bandwidth.

SIC: successive Interference Cancellation, serial interference cancellation.

ZF: the english abbreviation for Zero force, i.e. Zero Forcing.

MMSE: minimum Mean Squared Error, the minimum mean square error.

SA: english abbreviations for Stand Alone, independent networking.

PSS: primary Synchronization Signals, the main synchronization signal.

SSS: secondary Synchronization Signals, the secondary synchronization signal.

PRACH: physical Random Access Channel, i.e. physical random access channel.

The scheme provided by the embodiment of the present disclosure can be widely applied to a wireless communication system in order to provide various types of communication contents, such as voice, video, packet data, messaging, broadcasting, and so on. These systems are capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Such multiple access systems include, for example, fourth generation (4G) systems (e.g., long term evolution (Long Term Evolution, LTE) systems or LTE-advanced (LTE-a) systems) and fifth generation (5G) systems (which may be referred to as New Radio (NR) systems). These systems may employ techniques such as code division multiple access (Code Division Multiple Access, abbreviated CDMA), time division multiple access (Time division multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), or discrete fourier transform spread OFDM, among others. A wireless multiple-access communication system may include multiple base stations or network access nodes, each supporting communication for multiple communication devices, which may be referred to as User Equipment, UEs, or terminals, simultaneously.

Fig. 1 schematically illustrates an application scenario diagram of a resource allocation method according to an embodiment of the present disclosure.

Fig. 1 illustrates an example of a wireless communication system 100 in accordance with various aspects of the present disclosure. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-a network, or an NR network. In some cases, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, or communications with low cost and low complexity devices.

Base station 105 may communicate wirelessly with UE 115 via one or more base station antennas. The base stations 105 described herein may include base station transceivers, radio base stations, access points, radio transceivers, node bs, evolved node bs (enbs), next generation node bs or giganode bs (any of which may be referred to as a gNB), home node bs, home evolved node bs, or some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro base stations or small cells). The UEs 115 described herein are capable of communicating with various types of base stations 105 and network devices (including macro enbs, small cell enbs, gnbs, relay base stations, etc.).

Each base station 105 may be associated with a particular geographic coverage area 110 in which communications with the respective UE 115 are supported. Each base station 105 may provide communication coverage for a respective geographic coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communication links 125 shown in the wireless communication system 100 may include: uplink transmissions from UE 115 to base station 105, or downlink transmissions from base station 105 to UE 115. The downlink transmission may also be referred to as a forward link transmission, while the uplink transmission may also be referred to as a reverse link transmission.

The base stations 105 may communicate with the core network 130 and with each other. For example, the base station 105 may interface with the core network 130 through a backhaul link 132. The base stations 105 may communicate with each other directly or indirectly over the backhaul link 134.

In addition, the terminals referred to in the embodiments of the present disclosure are devices that provide voice and/or data connectivity to a user, handheld devices with wireless connection capabilities, or other processing devices connected to a wireless modem. The terminals may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers with mobile terminals, which may be, for example, portable, pocket, hand-held, computer-built-in or car-mounted mobile devices which exchange voice and/or data with radio access networks. A Terminal may also be referred to as a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile Station), a Remote Station (RemoteStation), an AP (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), or a UE, without limitation.

Fig. 2 schematically illustrates a flow chart of a resource allocation method according to an embodiment of the present disclosure.

As shown in fig. 2, the method provided by the embodiment of the present disclosure may include the following steps.

In step S210, the network device maps a plurality of segments of spectrum having different subcarrier spacings into a virtual bandwidth V-BW (Virtual Bandwidth).

In step S220, the network device sends configuration information of the V-BW to a terminal through a first configuration message, where the configuration information of the V-BW includes virtual physical resource blocks V-PRB (Virtual Physical Resource Block) constituting the V-BW, and resource mapping information between V-PRBs and virtual common resource blocks V-CRB (Virtual Common Resource Block).

In an exemplary embodiment, the configuration information of the V-BW includes configuration information of each segment of spectrum resources constituting the V-BW, including: identification of each section of spectrum; subcarrier spacing for each segment of spectrum; the number of V-PRBs contained per segment of spectrum.

In an exemplary embodiment, the subcarrier spacing of each segment of spectrum is 2 ^μ *15kHz, and mu is an integer greater than or equal to 0.

In an exemplary embodiment, the frequency domain length of each V-PRB is a first number of subcarriers, wherein the subcarrier spacing is k×15khz, k being a positive integer greater than or equal to 1; each segment of the spectrum of the V-BW has a width k that is an integer multiple of the first number of subcarrier spacings.

In an exemplary embodiment, in the time domain direction, if the subcarrier spacing of the V-PRBs is k times of 15kHz, k V-PRBs are placed in parallel in the time domain, the V-PRBs are numbered according to the sequence from left to right, the leftmost number is the smallest, and the numbers are sequentially increased, where k is a positive integer greater than or equal to 1; after the k V-PRBs are placed in the time domain, the next V-PRB is numbered according to the frequency domain direction; in the frequency domain direction, the V-PRBs are numbered in the order from low frequency to high frequency, and the number of the V-PRB at the lowest frequency position is the smallest and sequentially increases.

In an exemplary embodiment, k=2 ^μ Mu is an integer greater than or equal to 0; wherein, in the frequency domain direction, the frequency domain width of one V-PRB is 2 of the frequency domain width of the V-CRB ^μ Doubling; in the time domain direction, the time domain length of one V-PRB is 1/2 of the time domain length of one V-CRB ^μ Multiple times.

In the following embodiments, μ=0, 1,2,3,4 are exemplified, but the present disclosure is not limited thereto and may be set according to actual scenes.

In an exemplary embodiment, the configuration information of the V-BW includes a V-CRB set defined within a bandwidth of the V-BW, the V-CRB set includes V-CRBs therein, a spectrum width occupied by V-CRBs in the V-CRB set is the same as the bandwidth of the V-BW, and a frequency domain start point of V-CRBs in the V-CRB set is the same as a frequency domain start point of the V-BW.

In an exemplary embodiment, the configuration information of the V-BW includes configuration information of a V-CRB, the V-CRB including V-CRB0; wherein, the configuration information of the V-CRB comprises: absolute frequency of the frequency reference Point R-Point; the center frequency corresponding to the 1 st subcarrier of the V-CRB0 coincides with the R-Point; subcarrier spacing of the V-CRB; index of the V-CRB.

In an exemplary embodiment, each V-CRB includes a first number of subcarriers having a minimum subcarrier spacing (e.g., 15 kHz). In the following embodiments, the first number 12 is taken as an example for illustration, but the present disclosure is not limited thereto and may be set according to actual requirements.

In an exemplary embodiment, the configuration information of the V-CRB is unchanged when the configuration of the V-BW is unchanged.

In an exemplary embodiment, each V-CRB in the V-CRB set is numbered from 0 in the frequency domain, the number increasing in integer form with increasing frequency, the starting V-CRB in the V-CRB set being the V-CRB0, the lower boundary of the V-CRB0 being flush with the lower boundary of the V-BW; and defining the center frequency corresponding to the 1 st subcarrier of the V-CRB0 as the R-Point.

In an exemplary embodiment, the absolute frequency of the R-Point identifies the frequency reference Point with an absolute radio frequency channel number ARFCN.

In an exemplary embodiment, the subcarrier spacing of the V-CRB is a minimum subcarrier spacing, e.g., 15kHz.

In an exemplary embodiment, the resource mapping information between the V-PRB and the V-CRB includes: the number of the V-CRB corresponding to the starting V-PRB of each segment of spectrum and the number of the V-CRB corresponding to the ending V-PRB of each segment of spectrum are indicated.

In an exemplary embodiment, the V-BWP includes a set of consecutive V-CRBs.

In an exemplary embodiment, the resource mapping information between the V-PRBs and the V-CRBs includes configuration information of the V-CRBs constituting the V-BWP, the configuration information of the V-CRBs constituting the V-BWP including: the number of V-BWP to identify a particular V-BWP; the position and bandwidth of the V-BWP are integers between 0 and 37949, indicating the start number and length of the V-CRB corresponding to the V-PRB constituting the V-BWP.

In step S230, the network device configures the terminal with partial virtual bandwidths V-BWP (Virtual Bandwidth Part) through a second configuration message, each V-BWP being a segment of the spectrum of the V-BW.

The network device configures one or more V-BWP for the terminal, wherein at most the terminal configures N V-BWP, N being a positive integer greater than or equal to 1, at most one V-BWP being active at the same time.

In an exemplary embodiment, the second configuration message carries the following information: a downlink V-BWP adding list, wherein the value of the downlink V-BWP adding list is a positive integer which is more than or equal to 1 and less than or equal to N, so as to indicate the V-BWP configured for the terminal; a downlink V-BWP release list, wherein the value of the downlink V-BWP release list is a positive integer which is more than or equal to 1 and less than or equal to N, so as to indicate the released V-BWP list; the number of the V-BWP corresponding to the initial downlink V-BWP, to indicate the first activated V-BWP when the terminal receives the radio resource control RRC configuration or reconfiguration message; the number of the V-BWP corresponding to the downlink V-BWP is defaulted for reverting to a Default V-BWP (Default V-BWP) when no traffic is transmitted within a predetermined time length of the terminal.

In an exemplary embodiment, the downstream V-BWP add list includes a number of V-BWP configured for the terminal, and a location and bandwidth of V-BWP; the downlink V-BWP release list includes the number of the V-BWP released by the terminal, and the location and bandwidth of the V-BWP.

In an exemplary embodiment, the position and bandwidth of the V-BWP configured for the terminal indicate the start number and length of the V-CRB corresponding to the V-PRB configured for the V-BWP; the position and bandwidth of the V-BWP released by the terminal indicate the start number and length of the V-CRB corresponding to the V-PRB constituting the V-BWP released by the terminal.

In step S240, when the terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling.

In an exemplary embodiment, the control signaling includes a physical downlink control channel, PDCCH, message; wherein when a terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling, including: when terminal service changes, the network equipment sends the PDCCH message to the terminal, wherein the PDCCH carries a V-BWP indicator; so that the terminal activates the V-BWP indicated by the V-BWP indicator and deactivates the V-BWP currently activated by the terminal when it is determined that the number of the V-BWP indicated by the V-BWP indicator is different from the number of the V-BWP currently activated by the terminal.

In an exemplary embodiment, the V-BWP indicator has a field length of [ log ] ₂ (n _V-BWP )]Bits, wherein: if the number n of the V-BWPs configured for the terminal _V-BWP,RRC N is less than or equal to N-1, N _V-BWP ＝n _V-BWP,RRC +1, N is a positive integer greater than or equal to 1, n _V-BWP,RRC Is a positive integer greater than or equal to 1, n _V-BWP,RRC Is an integer greater than or equal to 0; if n configured for the terminal _V-BWP,RRC N is =n _V-BWP ＝n _V-BWP,RRC 。

In an exemplary embodiment, the method may further include: the network device sends a third configuration message to the terminal, where the third configuration message carries a PDCCH parameter for configuring the terminal, and the PDCCH parameter may include: a control resource set adding list, configured to indicate a control resource set list configured for the terminal, where the control resource set list includes a control resource set configured for the terminal; a control resource set release list for indicating to release the control resource set list configured for the terminal; a search space adding list for indicating a search space of the terminal; a search space release list for indicating to delete configured search spaces for the terminal; and the terminal obtains the time-frequency position of the PDCCH message according to the control resource set in the third configuration message so as to search the PDCCH message in the time-frequency position.

In the following description, the first to third configuration messages are described by taking RRC signaling as an example, but the present disclosure is not limited thereto.

According to the resource configuration method provided by the embodiment of the disclosure, a network device maps multiple segments of frequency spectrums with different subcarrier intervals into virtual bandwidth V-BW, and then the network device sends configuration information of the V-BW to a terminal through a first configuration message, wherein the configuration information of the V-BW comprises virtual physical resource blocks V-PRB forming the V-BW and resource mapping information between the V-PRB and virtual public resource blocks V-CRB; the network device configures a partial virtual bandwidth V-BWP for the terminal through a second configuration message, wherein each V-BWP is a section of frequency spectrum of the V-BW; when the terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling, thereby improving the utilization rate of spectrum resources and the terminal rate.

The above-described method provided by the embodiments of the present disclosure is illustrated below in conjunction with fig. 3 to 7, but the present disclosure is not limited thereto.

The partial bandwidth BWP in the related art includes the following:

(1) Initial BWP (Initial BWP): PCell (Primary Cell) is a BWP for initial access. In idle state, the UE acquires initial BWP information through a broadcast message. The downlink initial BWP may provide contents such as a synchronization channel, a broadcast message, etc.; the uplink initial BWP may be used for the UE to initiate initial connection establishment.

(2) Default BWP (Default BWP): for connected UEs, a default BWP configured on the serving cell is used for random access backoff, i.e., if there are no random access resources on the active BWP, the UE rolls back to the default BWP to complete the random access procedure. When the default BWP is not configured, the initial BWP is the default BWP.

(3) Activation BWP (Active BWP): the connected UE may set up only one active BWP at most for both the uplink BWP and the downlink BWP of one cell for the BWP for data transmission with the gmb.

As described above, in order to support different terminal services, improve spectrum utilization, reduce terminal power consumption, and NR introduces BWP. Specifically, the serving cell may allocate a part of the carrier bandwidth to the terminal for use according to different services of the terminal. However, in the current standard, in consideration of the influence of signaling overhead and complexity, BWP can only cut off a part of bandwidth from one carrier bandwidth (a section of spectrum), and cannot allocate a part of bandwidth from a virtual bandwidth composed of a plurality of carriers with different subcarrier intervals (a plurality of carrier spectrums with different subcarrier intervals) to a terminal for use, and thus cannot further improve the spectrum resource utilization and the terminal rate. In order to improve the utilization rate of spectrum resources and the terminal rate, the following problems exist in the current standards and implementation:

-failing to schedule a virtual bandwidth consisting of a plurality of segments of discontinuous spectrum: considering that each spectrum may have different subcarrier spacing, bandwidths of multiple segments of spectrum cannot be combined into a large virtual bandwidth and scheduled for a terminal to use, so that flexibility of spectrum resource scheduling and terminal speed are inhibited.

The serving cell cannot schedule for the terminal a virtual partial bandwidth consisting of several segments of discontinuous spectrum: in the current standard, all PRBs contained in the partial bandwidth have the same subcarrier spacing, and a serving cell cannot schedule a virtual partial bandwidth composed of a plurality of PRBs with different subcarrier spacing for a terminal according to the service requirement of the terminal, so that the utilization rate of spectrum resources and the terminal rate are inhibited.

-switching between multiple virtual partial bandwidths cannot be achieved: in the current standard, the serving cell can only realize the switching between partial bandwidths with the same subcarrier spacing according to the terminal service requirement, and can not realize the switching between virtual partial bandwidths composed of a plurality of PRBs with different carriers according to the terminal service requirement, thereby reducing the utilization rate of spectrum resources.

Based on the above requirement and reason analysis, the current 3GPP NR protocol cannot meet the requirement, and needs to be enhanced by a new manner to meet the requirement of resource allocation and optimization.

Aiming at the requirements of the 5G terminal for high speed and high spectrum resource utilization rate, the embodiment of the disclosure provides an efficient resource allocation method. Through the scheme provided by the embodiment of the disclosure, the service cell can combine multiple sections of spectrum into a large virtual bandwidth and schedule the virtual bandwidth for the terminal to use, wherein the multiple sections of spectrum may have the same or different subcarrier intervals. In order to improve the spectrum resource utilization and reduce the power consumption of the terminal, the serving cell may divide a large virtual bandwidth into a plurality of virtual partial bandwidths and configure one or more of them according to the service requirements of the terminal. Considering that only one virtual partial bandwidth can be activated at one moment, when the terminal service changes, the service cell can realize the switching among a plurality of partial virtual bandwidths according to the current service requirement of the terminal, thereby reducing the power consumption of the terminal and improving the utilization rate of spectrum resources. The method provided by the embodiment of the disclosure is based on the existing protocol process and has the characteristic of small change to the existing protocol.

The embodiment of the disclosure provides an efficient resource allocation method. First, the serving cell combines multiple segments of spectrum, which may have the same subcarrier spacing or different subcarrier spacing, into one large virtual bandwidth. To allocate virtual bandwidth resources to a terminal, a serving cell maps the virtual bandwidth into a plurality of virtual physical resource blocks, where each virtual physical resource block has a unique number and the same/different subcarrier spacing. For ease of indexing, a set of virtual common resource blocks having the same frequency domain width as the virtual bandwidth is defined, wherein each virtual common resource block has the same subcarrier spacing and unique number. In order to improve the utilization rate of spectrum resources, the service cell divides the virtual bandwidth into a plurality of virtual partial bandwidths and configures one or more of the virtual partial bandwidths according to the service requirements of the terminal. In order to facilitate terminal indexing, the serving cell sends the starting position and length of the public resource block corresponding to the virtual partial bandwidth to the terminal, and after the terminal receives the configuration, the terminal analyzes the allocated virtual partial bandwidth resource according to the configuration of the virtual public resource block and the mapping relation between the virtual public resource block and the virtual physical resource block. When the service requirement of the terminal changes, the service cell switches the activated virtual part bandwidth for the terminal, thereby improving the utilization rate of spectrum resources and improving the terminal rate with lower power consumption.

The method provided by the embodiment of the disclosure can comprise the following steps.

Step 1: in order to meet the service requirement of the terminal, the serving cell needs to configure corresponding time-frequency resources for the terminal, and in order to improve the flexibility of resource scheduling, the serving cell maps multiple sections of frequency spectrums with different subcarrier intervals into a section of large virtual bandwidth (Virtual Bandwidth, V-BW) and corresponds the virtual bandwidth to one virtual serving cell (hereinafter referred to as serving cell or virtual cell) so as to provide services for the terminal. The virtual cell may allocate a portion of virtual bandwidth (Virtual Bandwidth Part, V-BWP) resources in the V-BW to the terminal for use according to traffic demands of the terminal in consideration of the terminal capability and the requirement of terminal energy saving. Wherein the operating bandwidth of the virtual cell is the entire virtual large bandwidth, and the operating bandwidth of the terminal may be only a portion of the operating bandwidth of the virtual cell.

For example, the base station configures a virtual bandwidth for the terminal, wherein the virtual bandwidth is composed of a plurality of segments of spectrum resources with different subcarrier spacing, the first segment of spectrum is spaced by 30kHz, the second segment of spectrum is spaced by 15kHz, and the third segment of spectrum is spaced by 60kHz.

Step 2: to facilitate configuration of time-frequency resources for the terminal, a set of virtual common resource blocks (Virtual Common Resource Block, V-CRBs) is defined within the entire bandwidth of the V-BW. Wherein the frequency spectrum width occupied by the V-CRB is the same as the bandwidth of the V-BW, and the frequency domain starting point of the V-CRB is the same as the frequency domain starting point of the V-BW.

As shown in fig. 3, the V-CRB is composed of 12 subcarriers having a minimum subcarrier spacing (e.g., 15 kHz), which are numbered from 0 in the frequency domain, the number increasing in integer form with increasing frequency, starting with V-CRB0. To identify the specific location of V-CRB0, a frequency reference Point (Frequency Reference Point, R-Point) is defined for the center frequency corresponding to the 1 st subcarrier of V-CRB0 (i.e., subcarrier 0).

It should be noted that, although fig. 4, fig. 5 and fig. 6 are each illustrated by taking the minimum subcarrier spacing in V-BW as an example, the disclosure is not limited thereto, and in other embodiments, the subcarrier spacing included in V-BW may be, for example, 30kHz and 60kHz, where the minimum subcarrier spacing is 30kHz, that is, the subcarrier spacing of the designated V-CRB (that is, the designated subcarrier spacing) is 15kHz in the embodiments of the disclosure, but the subcarrier spacing of the V-CRB is not required to be the minimum subcarrier spacing in V-BW.

The configuration information of the V-CRB may be sent to the terminal in a static form through a configuration parameter of a higher layer, where the static configuration indicates that the configuration information of the V-CRB is unchanged in the case that the V-BW configuration is unchanged, and the higher layer configuration message (e.g., RRC signaling) includes, but is not limited to, the following information:

Absolute frequency of R-Point: the frequency reference point is identified by an absolute radio frequency channel number (Absolute Radio Frequency Channel Number, ARFCN).

The 1 st subcarrier of V-CRB0, subcarrier 0, corresponds to a center frequency coincident with R-Point.

-subcarrier spacing of V-CRB: 15kHz.

Index of V-CRB: the V-CRBs are numbered from low frequency to high frequency with integers starting from 0, with V-CRB0 at the lowest frequency. For example, as shown in FIG. 3, the numbers V-CRB0, V-CRB1, V-CRB2, V-CRB3, V-CRB4, V-CRB5, …, V-CRB11, V-CRB12, … V-CRB16, … are sequentially from low frequency to high frequency

Step 3: to facilitate terminal resource allocation, the serving cell maps the entire V-BW into multiple virtual physical resource blocks (Virtual Physical Resource Block, V-PRBs).

Specifically, each V-PRB has a frequency domain length of 12 subcarriers (with a subcarrier spacing of 2 ^μ 15kHz (μ=0, 1,2,3, 4)), the width of each segment spectrum of V-BW needs to be 2, considering that V-BW is composed of a plurality of frequency bands with different subcarrier spacing ^μ Integer multiples of 12 (μ=0, 1,2,3, 4) subcarrier spacing.

In addition, since the larger the subcarrier spacing is, the smaller the time domain length of the subcarrier is, in order to ensure that the V-PRB is in the time domain Alignment, based on the time domain length of the V-CRB with minimum subcarrier spacing (15 kHz), when the subcarrier spacing of the V-PRB is the minimum subcarrier spacing of 2 ^μ At times, there is 2 ^μ The V-PRBs are placed in parallel in the time domain (i.e., the frequency domain locations are the same).

For example, as shown in fig. 4, for a subcarrier spacing of 30kHz, V-PRB0 and V-PRB1 are placed in parallel over a V-CRB time domain length, the frequency domain positions of V-PRB0 and V-PRB1 are the same, and the symbol here may be, for example, an OFDM symbol assuming that the V-CRB time domain length is equal to 2 symbol lengths, but the present disclosure is not limited thereto. For a subcarrier spacing of 15kHz, V-PRB2 is placed in parallel over the V-CRB time domain length.

Step 4: the V-PRB is numbered based on the configuration, and the numbering rule is as follows: the time domain increases from left to right, and the frequency domain increases from bottom to top.

For example, as shown in fig. 4, in the time domain direction, if the subcarrier spacing of the V-PRB is 2 of the minimum subcarrier spacing ^μ (μ=0, 1,2,3, 4), then the time domains are placed in parallel 2 ^μ The V-PRBs are numbered according to the sequence from left to right, the leftmost number is minimum and sequentially increases, for example, the V-PRB0 and the V-PRB1 in the V-BW are sequentially increased, and as the subcarrier interval of the first section of frequency spectrum is 30kHz, the time domain needs to place two V-PRBs in parallel in the first section of frequency spectrum; when the time domain placement is completed 2 ^μ After the V-PRB is counted, the next V-PRB is numbered according to the frequency domain direction; in the frequency domain direction, the V-PRBs are numbered in order from low frequency to high, and the number of the V-PRB at the lowest frequency position is the smallest and sequentially increases, for example, after the first band spectrum is finished, i.e., after the V-PRB3, the next V-PRB is the V-PRB4 of the second band spectrum. I.e. the lowest layer (frequency domain), the leftmost (time domain) V-PRB number is smallest, e.g. the leftmost (time domain) V-PRB0 at the lowest frequency (frequency domain).

Step 5: in view of the fact that each V-PRB constituting the V-BW may have a different subcarrier spacing, in order to facilitate V-BW configuration, the V-PRB constituting the V-BW of the entire virtual bandwidth is resource mapped with the V-CRB, wherein the lower boundary of the V-CRB0 is flush with the lower boundary of the V-BW, as shown in fig. 5.

As shown in table 1 below, since the subcarrier spacing of the V-PRB may be 2 ^μ 15kHz (μ=0, 1,2,3, 4), so that the frequency domain width of one V-PRB is 2 of the frequency domain width of V-CRB in the frequency domain direction ^μ Multiple, and in the time domain direction, the time domain length of one V-PRB is 1/2 of the time domain length of the V-CRB ^μ 。

Table 1: V-PRB and V-CRB correspondence

For example, as shown in FIG. 5, when the subcarrier spacing is 30kHz, V-PRB0 and V-PRB1 are placed in parallel in the time domain, and V-PRB2 and V-PRB3 are placed in parallel in the time domain; in the frequency domain, V-PRB0 and V-PRB1 are the same and correspond to V-CRB0 and V-CRB 1; in the frequency domain, V-PRB2 and V-PRB3 are the same and correspond to V-CRB 2 and V-CRB 3. When the subcarrier spacing is 15kHz, the V-PRB4, the V-PRB5, the V-PRB6 and the V-PRB7 respectively correspond to the V-CRB4, the V-CRB 5, the V-CRB 6 and the V-CRB 7. When the subcarrier spacing is 60kHz, the V-PRB8, the V-PRB9, the V-PRB10 and the V-PRB11 are placed in parallel on the time domain; in the frequency domain, V-PRB8, V-PRB9, V-PRB10 and V-PRB11 are identical and correspond to V-CRB8, V-CRB9, V-CRB10 and V-CRB11.

Step 6: in order to facilitate indexing of the V-PRB when time-frequency resources are allocated to the terminal in the following manner, the serving cell transmits configuration information of the V-BW, and resource mapping information of the V-PRB and the V-CRB constituting the V-BW to the terminal in a static form through higher layer configuration information (e.g., fourth configuration information), where the static configuration indicates that the configuration information of the V-BW is unchanged if the configuration of the V-BW is unchanged, and specifically, the configuration information of the V-BW, and the resource mapping information of the V-PRB and the V-CRB constituting the V-BW include, but are not limited to, the following information:

the configuration of each segment of spectrum resources constituting the total virtual bandwidth V-BW may include, but is not limited to, the following information:

identification of each section of spectrum;

subcarrier spacing for each segment of spectrum, wherein the subcarrier spacing is 2 ^μ ·15kHz(μ＝0，1，2，3，4)；

The number of V-PRBs contained per segment of spectrum.

The V-CRBs corresponding to the V-PRBs constituting each segment of spectrum of V-BW may contain, but are not limited to, the following information:

mapping relation between initial V-PRB and V-CRB of each spectrum: the number of the V-CRB corresponding to the starting V-PRB of each section of spectrum and the number of the V-CRB corresponding to the ending V-PRB of each section of spectrum are indicated.

For example, taking fig. 5 as an example, for a 30kHz subcarrier spacing, the starting V-PRB of this segment of spectrum is referred to as V-PRB0 and the ending V-PRB is referred to as V-PRB3. For a 15kHz subcarrier spacing, the starting V-PRB of this segment of spectrum is referred to as V-PRB4 and the ending V-PRB is referred to as V-PRB7.

Step 7: the virtual cell configures V-BWP (V-BWP is composed of a set of consecutive V-CRBs) for the terminal according to the terminal service requirement and the above configuration, and transmits V-BWP-related parameters to the terminal through a higher layer message (RRC signaling or RRC configuration message), as shown in fig. 6. Based on the above description, the serving cell has mapped all V-PRBs constituting the V-BW with V-CRBs one by one, and for convenience of configuration, the serving cell transmits configuration information of V-CRBs constituting the V-BWP, including but not limited to the following information, to the terminal:

-V-BWP numbering: identifying a particular V-BWP;

-position and bandwidth of V-BWP: the value is an integer of 0 to 37949, and indicates the V-CRB start number and length corresponding to the V-PRB constituting the V-BWP.

As shown in fig. 4, V-BWP is defined as a set of V-CRBs 2 to 12, with a start number of 2 and a length of 11, and can resolve the corresponding V-RPBs 0 to 10 and the subcarrier spacing and time-frequency position of each V-PRB according to the mapping relationship between the V-PRB and the V-CRB that are statically configured previously.

Step 8: the serving cell configures one or more V-BWP for the terminal according to the traffic of the terminal, wherein at most the terminal configures N V-BWP, but at most one V-BWP is active at a time. The serving cell may dynamically adjust the configured V-BWP number through RRC signaling or an RRC configuration message (i.e., a first configuration message). To save power consumption, a default V-BWP is defined, which typically has a smaller bandwidth, and is rolled back to save power consumption when the terminal has no traffic transmission for a period of time. The serving cell transmits the configuration to the terminal through an RRC message, where the RRC message includes, but is not limited to, the following information:

-downstream V-BWP add list: integers 1 to N, indicating V-BWP configured for the terminal, include, but are not limited to, the following information:

V-BWP numbering: identifying a particular V-BWP;

location and bandwidth of V-BWP: the value is an integer of 0 to 37949, and indicates the V-CRB start number and length corresponding to the V-PRB constituting the V-BWP.

-downstream V-BWP release list: integers 1-N, indicating a list of released V-BWP, including but not limited to the following information:

V-BWP numbering: identifying a particular V-BWP;

location and bandwidth of V-BWP: the value is an integer of 0 to 37949, and indicates the V-CRB start number and length corresponding to the V-PRB constituting the V-BWP.

-initial downstream V-BWP: indicating that the first activated V-BWP (referred to as the first activated V-BWP) when the RRC configuration or reconfiguration message is received, includes, but is not limited to, the following information:

V-BWP numbering: a particular V-BWP is identified.

-default downstream V-BWP: the V-BWP number identifies a particular V-BWP as a default downstream V-BWP, including, but not limited to, the following information:

V-BWP numbering: a particular V-BWP is identified.

Step 9: the terminal constructs the detailed information of the whole bandwidth of the V-BW according to the configuration information of the V-CRB and the resource mapping information of the V-PRB and the V-CRB of the V-BW which are statically configured, wherein the detailed information comprises the mapping relation of each V-PRB and the V-CRB. Then, the first activated V-BWP allocated to the serving cell is parsed and activated according to configuration information of the V-BWP configured by the base station, including the number of V-BWP, the start number and length of each V-BWP, and information of the first activated V-BWP.

Step 10: in order to accommodate the dynamically changing terminal requirements, the serving cell supports a dynamic handoff mechanism for V-BWP.

Specifically, when the traffic volume of the terminal increases, the serving cell may dynamically configure a V-BWP with a larger bandwidth for the terminal through a V-BWP indication field (hereinafter referred to as a V-BWP indicator) in the PDCCH to adapt to the traffic demand of the terminal, and specifically, the configuration information includes, but is not limited to, the following information:

PDCCH configuration: for configuring UE-specific PDCCH parameters, including but not limited to the following information:

control resource set addition list: taking an integer between 1 and 3, and indicating the integer as a control resource set (CORESET) list configured by the terminal;

control resource set release list: taking an integer between 1 and 3, and indicating to release a control resource set (CORESET) list configured for the terminal;

search space add list: taking an integer between 1 and 10, and indicating a specific search space of the UE;

search space release list: and taking an integer between 1 and 10, and indicating to delete the configured search space for the UE.

-V-BWP indicator: the field length is [ log ] ₂ (n _V-BWP )]Bits (value range is [0, log) ₂ N]) Number n of V-BWPs specifically configured by RRC _V-BWP,RRC And (3) determining:

if n _V-BWP,RRC N is less than or equal to N-1, N _V-BWP ＝n _V-BWP,RRC +1；

Otherwise n _V-BWP ＝n _V-BWP,RRC I.e. the serving cell configures the terminal with N V-BWP.

Assuming that the RRC configures 4V-BWPs for the terminal, n _V-BWP,RRC ＝4，[log ₂ (n _V-BWP )]The value range of (2) is [0,2 ]]Integers between, i.e., 0,1,2.

If n _V-BWP,RRC =3, then n _V-BWP ＝n _V-BWP,RRC +1＝4，Doing so avoids log appearance ₂ 0。

Otherwise n _V-BWP ＝n _V-BWP,RRC ＝4。

Step 11: the terminal obtains information such as a time-frequency position of the PDCCH according to a control resource set (CORESET) setting in RRC signaling, then searches the PDCCH on a specific time-frequency resource, and when the terminal detects that the PDCCH carries a V-BWP indicator, and the indicated V-BWP number is different from the currently activated V-BWP number, the terminal activates the V-BWP indicated by the V-BWP indicator and deactivates the currently activated V-BWP.

The method provided by the embodiment of the disclosure can schedule a virtual bandwidth consisting of a plurality of discontinuous frequency spectrums for the terminal in one service cell. In order to reduce signaling overhead and complexity, a virtual public resource block set corresponding to the virtual bandwidth is defined, and the mapping relation between the virtual physical resource blocks forming the virtual bandwidth and the virtual public resource blocks is sent to the terminal through static RRC signaling, so that the flexibility of spectrum resource scheduling and the spectrum resource utilization rate are improved with lower signaling overhead.

Fig. 7 schematically illustrates a flow chart of a resource allocation method according to another embodiment of the present disclosure. As shown in fig. 7, the method provided by the embodiment of the present disclosure may include the following steps.

In step S1, the gNB semi-statically configures virtual bandwidth configuration information and virtual V-PRB information, and sends the virtual bandwidth configuration information and the virtual V-PRB information to the UE through RRC signaling.

In step S2, the gNB semi-statically configures virtual V-CRB information corresponding to the virtual bandwidth, and sends the virtual V-CRB information to the UE through RRC signaling.

In step S3, the gNB configures V-BWP information and transmits it to the UE through RRC signaling.

In step S4, the gNB dynamically switches the activated V-BWP and transmits it to the UE through PDCCH signaling.

Reference may be made to the other embodiments described above for specific implementation.

According to the method provided by the embodiment of the disclosure, on one hand, a virtual partial bandwidth can be configured for a terminal according to the service requirement of the terminal, wherein the virtual partial bandwidth is composed of a plurality of virtual physical resource blocks with the same or different subcarrier intervals, in order to reduce signaling overhead, the virtual partial bandwidth is mapped into a section of continuous virtual public resource block set, and the configured virtual partial bandwidth is analyzed by the terminal according to the mapping relation between the statically configured virtual public resource blocks and the virtual physical resource blocks, so that the frequency spectrum resource utilization rate and the terminal rate are greatly improved with lower signaling overhead. On the other hand, switching between multiple virtual partial bandwidths can be achieved: considering that each section of virtual partial bandwidth can have different bandwidths, the service cell can dynamically switch the virtual partial bandwidth activated by the terminal through physical layer control signaling according to the service requirement of the terminal, thereby reducing the power consumption of the terminal and improving the utilization rate of spectrum resources. In addition, the method provided by the embodiment of the disclosure has small influence on the terminal and good backward compatibility and deployment feasibility. The method provided by the embodiment of the disclosure is to enhance the existing protocol without introducing a new protocol process, and has small change to the existing protocol and low realization difficulty.

Fig. 8 schematically illustrates a flow chart of a resource allocation method according to yet another embodiment of the present disclosure. As shown in fig. 8, the method provided by the embodiment of the present disclosure may include the following steps.

In step S810, the terminal receives a first configuration message sent by a network device, where the first configuration message includes configuration information of a virtual bandwidth V-BW, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs forming the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs, where the V-BW is generated by multiple segments of spectrum mapping with different subcarrier intervals.

In step S820, the terminal receives a second configuration message sent by the network device, where the second configuration message is used to configure a portion of virtual bandwidth V-BWP for the terminal, and each V-BWP is a segment of spectrum of the V-BW.

In step S830, when the terminal service changes, the terminal receives a control signaling sent by the network device, where the control signaling is used to dynamically switch the activated V-BWP for the terminal.

Reference may be made in particular to the content of the other embodiments described above.

The embodiment of the disclosure provides an efficient resource allocation method. First, the serving cell combines multiple segments of spectrum, which may have the same subcarrier spacing or different subcarrier spacing, into one virtual large bandwidth. To allocate virtual bandwidth resources to a terminal, the serving cell maps the virtual bandwidth into a plurality of virtual physical resource blocks, where each virtual physical resource block may have a different subcarrier spacing, and a unique number. For ease of indexing, a set of virtual common resource blocks having the same frequency domain width as the virtual bandwidth is defined, wherein each virtual common resource block has the same subcarrier spacing and unique number. In order to improve the utilization of the spectrum resources, the service is used for improving the utilization of the spectrum resources, the service cell divides the virtual bandwidth into a plurality of virtual partial bandwidths, and one or more of the virtual partial bandwidths are configured for the virtual partial bandwidths according to the service requirements of the terminal. In order to facilitate terminal indexing, the serving cell sends the starting position and length of the public resource block corresponding to the virtual partial bandwidth to the terminal, and after the terminal receives the configuration, the terminal analyzes the allocated virtual partial bandwidth resources according to the configuration of the virtual public resource block and the mapping relation between the virtual public resource block and the virtual partial bandwidth. When the service demand of the terminal changes, the service cell switches the activated virtual partial bandwidth for the terminal, thereby controlling the power consumption of the terminal and improving the utilization rate of spectrum resources.

It should also be understood that the above is only intended to assist those skilled in the art in better understanding the embodiments of the present disclosure, and is not intended to limit the scope of the embodiments of the present disclosure. It will be apparent to those skilled in the art from the foregoing examples that various equivalent modifications or variations can be made, for example, some steps of the methods described above may not be necessary, or some steps may be newly added, etc. Or a combination of any two or more of the above. Such modifications, variations, or combinations thereof are also within the scope of the embodiments of the present disclosure.

It should also be understood that the foregoing description of the embodiments of the present disclosure focuses on highlighting differences between the various embodiments and that the same or similar elements not mentioned may be referred to each other and are not repeated here for brevity.

It should also be understood that the sequence numbers of the above processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.

It should also be understood that, in the embodiments of the present disclosure, the "preset" and "predefined" may be implemented by pre-storing corresponding codes, tables, or other manners that may be used to indicate relevant information in devices (including, for example, terminals and network devices), and the present disclosure is not limited to a specific implementation manner thereof.

It is also to be understood that in the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent and may be referenced to one another in the absence of a particular explanation or logic conflict, and that the features of the various embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

Examples of the resource allocation method provided by the present disclosure are described above in detail. It will be appreciated that the terminals and network devices, in order to implement the above-described functions, include corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

Fig. 9 schematically illustrates a schematic block diagram of a network device according to an embodiment of the disclosure.

As shown in fig. 9, a network device 900 provided by an embodiment of the present disclosure may include: a first processing unit 910 and a first communication unit 920.

The first processing unit 910 may be configured to map multiple segments of spectrum having different subcarrier spacings into a virtual bandwidth V-BW.

The first communication unit 920 may be configured to send configuration information of the V-BW to a terminal through a first configuration message, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs constituting the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs.

The first communication unit 920 may be further configured to configure the terminal with partial virtual bandwidths V-BWP through a second configuration message, each V-BWP being a segment of the spectrum of the V-BW;

the first communication unit 920 may be further configured to dynamically switch the activated V-BWP for the terminal through control signaling when the terminal service is changed.

Other content in the embodiment of fig. 9 may be referred to the other embodiments described above.

Fig. 10 schematically shows a schematic block diagram of a terminal according to an embodiment of the present disclosure.

As shown in fig. 10, a terminal 1000 provided by an embodiment of the present disclosure may include: a second communication unit 1010.

The second communication unit 1010 may be configured to receive a first configuration message sent by a network device, where the first configuration message includes configuration information of a virtual bandwidth V-BW, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs that form the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs, where the V-BW is generated by multiple segments of spectrum mapping with different subcarrier intervals.

The second communication unit 1010 may be further configured to receive a second configuration message sent by the network device, where the second configuration message is configured to configure a portion of virtual bandwidth V-BWP for the terminal, each V-BWP being a portion of the spectrum of the V-BW.

The second communication unit 1010 may be further configured to receive control signaling sent by the network device when a terminal service changes, where the control signaling is used to dynamically switch the activated V-BWP for the terminal.

Optionally, network device 900 and terminal 1000 can also include a storage unit for storing instructions to be executed by each unit included in network device 900 and each unit included in terminal 1000.

It is to be understood that the first communication unit 920 and the second communication unit 1010 may be implemented by transceivers, and the first processing unit 910 may be implemented by a processor. The memory unit may be implemented by a memory.

An electronic device 1100 (which may be a terminal or a network device) as shown in fig. 11 may include a processor 1110, memory 1120, and transceiver 1130.

Further, the embodiment of the disclosure also provides a wireless communication system, which comprises network equipment and a terminal.

It will be clear to those skilled in the art that, when the steps performed by the terminal and the network device and the corresponding advantageous effects are referred to the description related to the terminal and the network device in the above method, the details are not repeated here for brevity.

It should be understood that the above division of the units is only a functional division, and other division methods are possible in practical implementation.

The embodiment of the disclosure also provides a processing device, which comprises a processor and an interface; the processor is configured to execute the resource allocation method in any of the method embodiments described above.

It should be understood that the processing means may be a chip. For example, the processing device may be a Field programmable gate array (Field-Programmable Gate Array, FPGA), an application specific integrated Chip (Application Specific Integrated Circuit, ASIC), a System on Chip (SoC), a central processing unit (Central Processor Unit, CPU), a network processor (Network Processor, NP), a digital signal processing circuit (Digital Signal Processor, DSP), a microcontroller (Micro Controller Unit, MCU), a programmable controller (Programmable Logic Device, PLD) or other integrated Chip.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present disclosure may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present disclosure may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (digitalsignal processor, DSP), an application specific integrated circuit (application specific integrated crcuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks of the disclosure in the embodiments of the disclosure may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present disclosure may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The disclosed embodiments also provide a computer readable medium having stored thereon a computer program which, when executed by a computer, implements the resource allocation method in any of the method embodiments described above.

The disclosed embodiments also provide a computer program product which, when executed by a computer, implements the resource allocation method in any of the method embodiments described above.

The embodiment of the disclosure also provides a system chip, which comprises: a processing unit, which may be, for example, a processor, and a communication unit, which may be, for example, an input/output interface, pins or circuitry, etc. The processing unit may execute computer instructions to cause the chips within the terminal, the primary node, and the secondary node to perform any of the resource allocation methods provided by the embodiments of the present disclosure described above.

Optionally, the computer instructions are stored in a storage unit.

Alternatively, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit in the terminal located outside the chip, such as a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM), etc. The processor mentioned in any of the above may be a CPU, microprocessor, ASIC, or one or more integrated circuits for controlling the execution of the programs of the above-mentioned resource allocation method. The processing unit and the storage unit may be decoupled and respectively disposed on different physical devices, and the respective functions of the processing unit and the storage unit are implemented by wired or wireless connection, so as to support the system chip to implement the various functions in the foregoing embodiments. Alternatively, the processing unit and the memory may be coupled to the same device.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/processes/concepts may be named in the present disclosure, and it should be understood that these specific names do not constitute limitations on related objects, and that the named names may be changed according to the scenario, context, or usage habit, etc., and understanding of technical meaning of technical terms in the present disclosure should be mainly determined from functions and technical effects that are embodied/performed in the technical solution.

In various embodiments of the disclosure, where no special description or logic conflict exists, terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (27)

1. A method for resource allocation, comprising:

the network equipment maps a plurality of sections of frequency spectrums with different subcarrier intervals into virtual bandwidths V-BW;

the network equipment sends the configuration information of the V-BW to a terminal through a first configuration message, wherein the configuration information of the V-BW comprises virtual physical resource blocks V-PRB forming the V-BW and resource mapping information between the V-PRB and virtual public resource blocks V-CRB;

the network device configures a partial virtual bandwidth V-BWP for the terminal through a second configuration message, wherein each V-BWP is a section of frequency spectrum of the V-BW;

when the terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling.

2. The method of claim 1 wherein the configuration information for the V-BW includes configuration information for each segment of spectrum resources comprising the V-BW, comprising:

identification of each section of spectrum;

subcarrier spacing for each segment of spectrum;

the number of V-PRBs contained per segment of spectrum.

3. The method of claim 2, wherein the subcarrier spacing of each segment of spectrum is 2 ^μ *15kHz, and mu is an integer greater than or equal to 0.

4. The method of claim 1, wherein the frequency domain length of each V-PRB is a first number of subcarriers, wherein the subcarrier spacing is k x 15khz, and k is a positive integer greater than or equal to 1; each segment of the spectrum of the V-BW has a width k that is an integer multiple of the first number of subcarrier spacings.

5. The method according to claim 1, wherein in the time domain direction, if the subcarrier spacing of the V-PRBs is k times of 15kHz, the k V-PRBs are placed in parallel in the time domain, the V-PRBs are numbered in the order from left to right, the leftmost number is the smallest, and are sequentially incremented, and k is a positive integer greater than or equal to 1;

after the k V-PRBs are placed in the time domain, the next V-PRB is numbered according to the frequency domain direction;

in the frequency domain direction, the V-PRBs are numbered in the order from low frequency to high frequency, and the number of the V-PRB at the lowest frequency position is the smallest and sequentially increases.

6. The method of claim 5, wherein k = 2 ^μ Mu is greater than or equal toAn integer of 0; wherein, the liquid crystal display device comprises a liquid crystal display device,

in the frequency domain direction, the frequency domain width of one V-PRB is 2 of the frequency domain width of the V-CRB ^μ Doubling;

in the time domain direction, the time domain length of one V-PRB is 1/2 of the time domain length of one V-CRB ^μ Multiple times.

7. The method of claim 1 wherein the configuration information of the V-BW comprises a set of V-CRBs defined within a bandwidth of the V-BW, wherein the set of V-CRBs comprises V-CRBs, wherein a frequency spectrum width occupied by V-CRBs in the set of V-CRBs is the same as the bandwidth of the V-BW, and wherein a frequency domain starting point of V-CRBs in the set of V-CRBs is the same as a frequency domain starting point of the V-BW.

8. The method of claim 7 wherein the configuration information of the V-BW comprises configuration information of a V-CRB, the V-CRB comprising V-CRB0;

wherein, the configuration information of the V-CRB comprises:

absolute frequency of the frequency reference Point R-Point;

the center frequency corresponding to the 1 st subcarrier of the V-CRB0 coincides with the R-Point;

subcarrier spacing of the V-CRB;

index of the V-CRB.

9. The method of claim 8, wherein each V-CRB comprises a first number of subcarriers having a minimum subcarrier spacing.

10. The method of claim 8 wherein configuration information for the V-CRB is unchanged when the configuration of the V-BW is unchanged.

11. The method of claim 8, wherein each V-CRB in the set of V-CRBs starts numbering from 0 in the frequency domain, the numbering increasing in integer form with increasing frequency, the starting V-CRB in the set of V-CRBs being the V-CRB0, the lower boundary of the V-CRB0 being flush with the lower boundary of the V-BW;

and defining the center frequency corresponding to the 1 st subcarrier of the V-CRB0 as the R-Point.

12. The method of claim 8, wherein the absolute frequency of the R-Point identifies the frequency reference Point with an absolute radio frequency channel number ARFCN.

13. The method of claim 8, wherein the subcarrier spacing of the V-CRB is a minimum subcarrier spacing.

14. The method of claim 1, wherein the resource mapping information between V-PRBs and V-CRBs comprises:

the number of the V-CRB corresponding to the starting V-PRB of each segment of spectrum and the number of the V-CRB corresponding to the ending V-PRB of each segment of spectrum are indicated.

15. The method of claim 14, wherein the V-BWP comprises a set of consecutive V-CRBs.

16. The method of claim 15, wherein the resource mapping information between the V-PRBs and the V-CRBs comprises configuration information of V-CRBs constituting the V-BWP, and wherein the configuration information of V-CRBs constituting the V-BWP comprises:

the number of V-BWP to identify a particular V-BWP;

the position and bandwidth of the V-BWP are integers between 0 and 37949, indicating the start number and length of the V-CRB corresponding to the V-PRB constituting the V-BWP.

17. The method according to claim 1, wherein the network device configures the terminal with one or more V-BWP, wherein at most the terminal configures N V-BWP, N being a positive integer greater than or equal to 1, at most one V-BWP being active at the same time.

18. The method of claim 17, wherein the second configuration message carries the following information:

a downlink V-BWP adding list, wherein the value of the downlink V-BWP adding list is a positive integer which is more than or equal to 1 and less than or equal to N, so as to indicate the V-BWP configured for the terminal;

a downlink V-BWP release list, wherein the value of the downlink V-BWP release list is a positive integer which is more than or equal to 1 and less than or equal to N, so as to indicate the released V-BWP list;

the number of the V-BWP corresponding to the initial downlink V-BWP, to indicate the first activated V-BWP when the terminal receives the radio resource control RRC configuration or reconfiguration message;

and defaulting the number of the V-BWP corresponding to the downlink V-BWP to fall back to the default V-BWP when no service is transmitted in the preset time length of the terminal.

19. The method according to claim 18, wherein the downstream V-BWP add list comprises the number of V-BWP configured for the terminal, and the location and bandwidth of V-BWP;

the downlink V-BWP release list includes the number of the V-BWP released by the terminal, and the location and bandwidth of the V-BWP.

20. The method of claim 19, wherein the location and bandwidth indication of the V-BWP configured for the terminal is configured as a start number and a length of a V-CRB corresponding to V-PRBs of the V-BWP configured for the terminal;

The position and bandwidth of the V-BWP released by the terminal indicate the start number and length of the V-CRB corresponding to the V-PRB constituting the V-BWP released by the terminal.

21. The method of claim 1, wherein the control signaling comprises a physical downlink control channel, PDCCH, message; wherein when a terminal service changes, the network device dynamically switches the activated V-BWP for the terminal through control signaling, including:

when terminal service changes, the network equipment sends the PDCCH message to the terminal, wherein the PDCCH carries a V-BWP indicator;

so that the terminal activates the V-BWP indicated by the V-BWP indicator and deactivates the V-BWP currently activated by the terminal when it is determined that the number of the V-BWP indicated by the V-BWP indicator is different from the number of the V-BWP currently activated by the terminal.

22. The method of claim 21, wherein the V-BWP indicator has a field length of [ log ] ₂ (n _V-BWP )]Bits, wherein:

if the number n of the V-BWPs configured for the terminal _V-BWP,RRC N is less than or equal to N-1, N _V-BWP ＝n _V-BWP,RRC +1, N is a positive integer greater than or equal to 1, n _V-BWP,RRC Is a positive integer greater than or equal to 1, n _V-BWP,RRC Is an integer greater than or equal to 0;

if n configured for the terminal _V-BWP,RRC N is =n _V-BWP ＝n _V-BWP,RRC 。

23. The method as recited in claim 21, further comprising:

the network device sends a third configuration message to the terminal, wherein the third configuration message carries a PDCCH parameter for configuring the terminal, and the PDCCH parameter comprises:

a control resource set adding list, configured to indicate a control resource set list configured for the terminal, where the control resource set list includes a control resource set configured for the terminal;

a control resource set release list for indicating to release the control resource set list configured for the terminal;

a search space adding list for indicating a search space of the terminal;

a search space release list for indicating to delete configured search spaces for the terminal;

and the terminal obtains the time-frequency position of the PDCCH message according to the control resource set in the third configuration message so as to search the PDCCH message in the time-frequency position.

24. A method for resource allocation, comprising:

the method comprises the steps that a terminal receives a first configuration message sent by network equipment, wherein the first configuration message comprises configuration information of virtual bandwidth V-BW, the configuration information of the V-BW comprises virtual physical resource blocks V-PRB forming the V-BW and resource mapping information between the V-PRB and virtual public resource blocks V-CRB, and the V-BW is generated by multiple segments of frequency spectrum mapping with different subcarrier intervals;

The terminal receives a second configuration message sent by the network device, wherein the second configuration message is used for configuring partial virtual bandwidth V-BWP for the terminal, and each V-BWP is a section of frequency spectrum of the V-BW;

when the terminal service changes, the terminal receives the control signaling sent by the network device, where the control signaling is used to dynamically switch the activated V-BWP for the terminal.

25. A network device, comprising:

a first processing unit, configured to map multiple segments of spectrum having different subcarrier spacings into virtual bandwidths V-BW;

a first communication unit, configured to send configuration information of the V-BW to a terminal through a first configuration message, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs forming the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs;

the first communication unit is further configured to configure, for the terminal, a partial virtual bandwidth V-BWP through a second configuration message, each V-BWP being a section of spectrum of the V-BW;

the first communication unit is further configured to dynamically switch the activated V-BWP for the terminal through control signaling when a terminal service changes.

26. A terminal, comprising:

a second communication unit, configured to receive a first configuration message sent by a network device, where the first configuration message includes configuration information of a virtual bandwidth V-BW, where the configuration information of the V-BW includes virtual physical resource blocks V-PRBs forming the V-BW, and resource mapping information between the V-PRBs and virtual common resource blocks V-CRBs, where the V-BW is generated by multiple segments of spectrum mapping having different subcarrier intervals;

the second communication unit is further configured to receive a second configuration message sent by the network device, where the second configuration message is configured to configure a partial virtual bandwidth V-BWP for the terminal, and each V-BWP is a section of spectrum of the V-BW;

the second communication unit is further configured to receive a control signaling sent by the network device when a terminal service changes, where the control signaling is used to dynamically switch the activated V-BWP for the terminal.

27. A computer readable storage medium storing a computer program, which when executed by a processor implements the method of any one of claims 1 to 25 or the method of claim 26.

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