CN107872891B - Resource scheduling method and device, network equipment and terminal - Google Patents
Resource scheduling method and device, network equipment and terminal Download PDFInfo
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- CN107872891B CN107872891B CN201711126409.8A CN201711126409A CN107872891B CN 107872891 B CN107872891 B CN 107872891B CN 201711126409 A CN201711126409 A CN 201711126409A CN 107872891 B CN107872891 B CN 107872891B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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Abstract
The invention discloses a resource scheduling method, a resource scheduling device, network equipment and a terminal, wherein the method comprises the following steps: acquiring the maximum bandwidth supported by a terminal; dividing a carrier into at least one bandwidth part according to the maximum bandwidth supported by the terminal; the bandwidth value of each bandwidth part is less than or equal to the maximum bandwidth supported by the terminal; and generating a bandwidth part index corresponding to the at least one bandwidth part, scheduling the at least one bandwidth part for the terminal, and sending the bandwidth part index corresponding to the bandwidth part to the terminal. Therefore, according to the above-mentioned division mode, when the base station performs resource allocation, it only needs to indicate which resources in the bandwidth part are allocated to the terminal through the DCI signaling, and since the bandwidth part is much smaller than the carrier bandwidth, DCI signaling overhead for resource allocation is greatly reduced.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a resource scheduling allocation method, apparatus, network device, and terminal.
Background
Under the condition of the traditional LTE, the carrier bandwidth is smaller, and the bandwidth required by the terminal is also smaller, generally, the secondary carrier bandwidth in the LTE is only 20MHz at most, and the requirement of the traditional LTE terminal can be met without continuously distributing the large bandwidth after the large bandwidth is only distributed to the secondary carrier. One carrier substantially corresponds to one cell, and the carrier bandwidth is the bandwidth corresponding to one cell. In the new radio technology (NR), the bandwidth required by the terminal is widened, the terminal requirements are diversified (for example, the bandwidth required by different terminals has a wide variation range), and when the single carrier bandwidth is 400MHz, the single carrier bandwidth can be divided into 4 secondary carriers, but the bandwidth of the secondary carrier is 100MHz, which can meet the requirements of most terminals. However, for a terminal with poor bandwidth supporting capability, for example, the bandwidth that can be supported by the terminal is only 20MHz, but since the bandwidth of the secondary bandwidth is 100MHz, when the base station allocates resources to the terminal, it needs to dynamically indicate to the terminal which resources of 100MHz are allocated to the terminal by using Downlink Control signaling (DCI). For example, a 2MHz bandwidth is a resource allocation granularity, then 100MHz can be divided into 50 2MHz, that is, 50 bits are needed to indicate which 2MHz of 50 2MHz is allocated to the terminal, so that the number of DCI is large, and as the single carrier bandwidth increases, or the terminal requirements diversify, the DCI signaling overhead is huge.
Disclosure of Invention
In view of this, embodiments of the present invention provide a resource scheduling method, an apparatus, a network device, and a terminal to solve the problem of large DCI signaling overhead.
According to a first aspect, an embodiment of the present invention provides a resource scheduling method, for a network device, including: acquiring the maximum bandwidth supported by a terminal; dividing a carrier into at least one Bandwidth Part (BWP) according to a maximum Bandwidth supported by a terminal; that is, the bandwidth of one cell is divided into a plurality of bandwidth parts. The bandwidth value of each bandwidth part is less than or equal to the maximum bandwidth supported by the terminal; and generating a bandwidth part index corresponding to at least one bandwidth part, scheduling the at least one bandwidth part for the terminal, and sending the bandwidth part index corresponding to the bandwidth part to the terminal. According to the scheduling mode, when the network equipment performs resource allocation, only which resources in the bandwidth part are allocated to the terminal through the DCI signaling indication, and since the bandwidth part is much smaller than the carrier bandwidth, the DCI signaling overhead for resource allocation is greatly reduced.
Optionally, there are no shared bandwidth resources between the bandwidth parts.
Optionally, there are shared bandwidth resources between the bandwidth parts.
Optionally, the shared bandwidth resource is used for transmitting any one or a combination of the synchronization signal block and the control channel resource.
Optionally, the number of bandwidth parts having shared bandwidth resources is 2-3.
Optionally, the bandwidth part index includes one or more of a number of the bandwidth part, a position of a preset resource block of the bandwidth part, and a bandwidth width of the bandwidth part.
Optionally, in the step of sending the bandwidth part index corresponding to the bandwidth part to the terminal, an RRC signaling or a DCI signaling bandwidth part index is used.
According to a second aspect, the present invention provides a resource scheduling method, for a terminal, including: receiving a bandwidth part index from a network device; and monitoring at least one bandwidth part indicated by the bandwidth part index in the carrier. The terminal monitors the corresponding partial bandwidth according to the bandwidth partial index sent by the network equipment, so that the resource monitored by the terminal can be greatly reduced, and the energy consumption of the terminal can be reduced.
Optionally, there are no shared bandwidth resources between the bandwidth parts.
Optionally, there are shared bandwidth resources between the bandwidth parts.
Optionally, the shared bandwidth resource is used for transmitting any one or a combination of the synchronization signal block and the control channel resource.
Optionally, the number of bandwidth parts having shared bandwidth resources is 2-3.
Optionally, the bandwidth part index includes one or more of a number of the bandwidth part, a position of a preset resource block of the bandwidth part, and a bandwidth width of the bandwidth part.
Optionally, in the step of receiving the bandwidth part index from the network device, the bandwidth part index is signaled by RRC signaling or DCI signaling.
According to a third aspect, an embodiment of the present invention provides a resource scheduling apparatus, which is used for a network device, and includes: the first receiving unit is used for acquiring the maximum bandwidth supported by the terminal; the first processing unit is used for dividing the carrier bandwidth into at least one bandwidth part according to the maximum bandwidth supported by the terminal; the bandwidth value of each bandwidth part is less than or equal to the maximum bandwidth supported by the terminal; a second processing unit for generating a bandwidth part index corresponding to at least one bandwidth part; and the sending unit is used for scheduling at least one bandwidth part for the terminal and sending the bandwidth part index corresponding to the bandwidth part to the terminal.
Optionally, there are no shared bandwidth resources between the bandwidth parts.
Optionally, there are shared bandwidth resources between the bandwidth parts.
Optionally, the shared bandwidth resource is used for transmitting any one or a combination of the synchronization signal block and the control channel resource.
Optionally, the number of bandwidth parts having shared bandwidth resources is 2-3.
Optionally, the bandwidth part index includes one or more of a number of the bandwidth part, a position of a preset resource block of the bandwidth part, and a bandwidth width of the bandwidth part.
Optionally, the bandwidth part index corresponding to the bandwidth part is sent to the terminal in the sending unit by using RRC signaling or DCI signaling bandwidth part index.
According to a fourth aspect, an embodiment of the present invention provides a resource scheduling apparatus, which is used for a terminal, and includes: a second receiving unit that receives the bandwidth part index from the network device; a third processing unit, configured to monitor at least one bandwidth part indicated by the bandwidth part index in the carrier.
Optionally, there are no shared bandwidth resources between the bandwidth parts.
Optionally, there are shared bandwidth resources between the bandwidth parts.
Optionally, the shared bandwidth resource is used for transmitting any one or a combination of the synchronization signal block and the control channel resource.
Optionally, the number of bandwidth parts having shared bandwidth resources is 2-3.
Optionally, the bandwidth part index includes one or more of a number of the bandwidth part, a position of a preset resource block of the bandwidth part, and a bandwidth width of the bandwidth part.
Optionally, the bandwidth part index received from the network device is RRC signaling or DCI signaling bandwidth part index in the receiving unit.
According to a fifth aspect, an embodiment of the present invention provides a network device, including: a first controller comprising: at least one first processor; and a first memory communicatively coupled to the at least one first processor; the first memory stores instructions executable by a first processor, and the instructions are executed by at least one first processor to cause the at least one first processor to execute the resource calling method of any one of the first aspects.
According to a sixth aspect, an embodiment of the present invention provides a terminal, including: a second controller comprising: at least one second processor; and a second memory communicatively coupled to the at least one second processor; wherein the second memory stores instructions executable by a second processor, the instructions being executable by the at least one second processor to cause the at least one second processor to perform the method of resource scheduling as described in the second aspect above.
According to a seventh aspect, an embodiment of the present invention provides a non-transitory computer readable storage medium, which is characterized by storing computer instructions for causing a computer to execute the resource scheduling method of any one of the first aspect or the second aspect.
According to the resource scheduling method, the resource scheduling device, the network device and the terminal provided by the embodiment of the invention, when the network device is connected with the terminal, the maximum bandwidth value supported by the terminal is obtained, the carrier bandwidth of the network device can be divided into at least one bandwidth part according to the maximum bandwidth value supported by the terminal, the bandwidth part index corresponding to the at least one bandwidth part is generated, the at least one bandwidth part is scheduled for the terminal, and the bandwidth part index corresponding to the bandwidth part is sent to the terminal. Therefore, according to the above-mentioned division manner, when the network device performs resource scheduling, it may only need to indicate which resources in the bandwidth part are allocated to the terminal through the DCI signaling, and since the bandwidth part is much smaller than the carrier bandwidth, DCI signaling overhead for resource allocation is greatly reduced.
According to the resource scheduling method, the resource scheduling device, the network equipment and the terminal provided by the embodiment of the invention, the divided bandwidth parts are used for allocating the corresponding bandwidth parts to the terminal through the bandwidth part indexes, and when the network equipment allocates resources, the bandwidth parts are much smaller than the carrier bandwidth, so that even for the terminal capable of supporting the carrier bandwidth, the smaller bandwidth parts are configured for the users under the condition of small data volume, the bandwidth monitored by the terminal can be reduced, and the power consumption of the terminal is greatly reduced.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 is a flowchart illustrating a resource scheduling method on a network device side according to an embodiment of the present invention;
FIG. 2 illustrates a schematic diagram of the absence of shared bandwidth resources between bandwidth parts according to an embodiment of the present invention;
FIG. 3 illustrates a schematic diagram of the presence of shared bandwidth resources between bandwidth parts according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a resource scheduling method at a terminal side according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a resource scheduling apparatus on a network device side according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a resource scheduling apparatus at a terminal side according to an embodiment of the present invention;
FIG. 7 shows a schematic diagram of a network device of an embodiment of the invention;
fig. 8 shows a schematic diagram of a terminal of an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a resource scheduling method, which is suitable for network equipment, wherein the network equipment can be a base station (eNodeB, eNB) or a base station (gNB) suitable for a new air interface. The network device in the following embodiments is described by taking a base station as an example, and as shown in fig. 1, the method includes:
and S11, acquiring the maximum bandwidth supported by the terminal. In this embodiment, when a terminal establishes a connection with a base station, the base station obtains a maximum bandwidth value supported by each terminal. The terminal Device may be a User Equipment (UE) such as a Mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), and the like. In this embodiment, the maximum bandwidths supported by the terminals connected to the base station may be 5MHz, 10MHz, 15MHz, and 20MHz, and the maximum bandwidth values supported by each terminal acquired by the base station are 5MHz, 10MHz, 15MHz, and 20MHz, respectively. And S12, dividing the carrier into at least one bandwidth part according to the maximum bandwidth supported by the terminal. In this embodiment, the bandwidth value of each bandwidth part is less than or equal to the maximum bandwidth supported by the terminal. The BWP is a part of the carrier bandwidth monitored by the terminal. The carrier bandwidth may be a single carrier, for example, a primary single carrier bandwidth of a new radio technology (NR) is 400MHz, or a plurality of secondary carriers are obtained by dividing the primary carrier, and some terminals may support the 400MHz bandwidth by carrier aggregation of the plurality of secondary carriers. Taking the secondary carrier with the bandwidth of 100MHz and the maximum bandwidth supported by the user of 20MHz adopted in the prior art as an example, since the secondary bandwidth is 100MHz, when the base station needs to allocate resources to the terminal, it needs to dynamically indicate to the terminal which resources of 100MHz are allocated to the terminal by using DCI signaling. For example, the 2MHz bandwidth is a resource allocation granularity, then 100MHz can be divided into 50 2MHz, that is, 50 bits are needed to indicate which 2MHz of 50 2MHz is allocated to the terminal, so that the number of bits of the DCI signaling is large, and actually, the user can only support 20MHz of 100MHz, if the base station directly informs the user first that only 20MHz of 100MHz needs to be monitored, and 20MHz includes 10 resource allocation granularities of 2MHz, then during resource allocation, the DCI signaling only needs 10 bits to indicate, thereby greatly reducing the overhead indicated by the DCI signaling. And the carrier is divided into a plurality of bandwidth parts, so that the requirements of terminals in different frequency bands can be met. In this embodiment, the bandwidth values of the plurality of bandwidth portions may be equal or different, and are determined according to the service type of the terminal. The division of the bandwidth part may be the same or different for different terminals, and is determined according to the maximum bandwidth value supportable by the terminal, the service type of each terminal, and the like.
S13, generating a bandwidth part index corresponding to at least one bandwidth part. In this embodiment, the bandwidth part index is used to instruct the terminal to listen to the bandwidth part corresponding to the bandwidth part index. In a specific embodiment, the bandwidth part index may configure at least one bandwidth part, and the bandwidth part index informs the terminal that it only needs to listen to the bandwidth part configured in the bandwidth part index. The bandwidth part index may be RRC (radio Resource connected) signaling or DCI signaling of UE-specific.
And S14, scheduling at least one bandwidth part for the terminal, and sending the bandwidth part index corresponding to the bandwidth part to the terminal. In this embodiment, according to the data size of the terminal and the load situation on the whole carrier, a bandwidth part suitable for being allocated to the terminal can be found, a bandwidth part index corresponding to the bandwidth part is generated at the same time, the bandwidth part index is sent to the terminal, and the corresponding bandwidth part is allocated to the terminal.
The method includes the steps of acquiring a maximum bandwidth value supported by a terminal when a base station is connected with the terminal, dividing a carrier bandwidth of the base station into at least one bandwidth part according to the maximum bandwidth value supported by the terminal, and generating a bandwidth part index corresponding to the at least one bandwidth part, wherein the bandwidth part index can indicate the terminal to monitor the bandwidth part corresponding to the bandwidth part index.
The following describes a dividing strategy for dividing the carrier bandwidth into multiple bandwidth parts according to the maximum bandwidth supported by the terminal in detail with reference to fig. 2 and 3.
In an alternative embodiment, the bandwidth part may be equal to the maximum bandwidth supported by the terminal, and in order to distribute the plurality of terminals evenly over the entire carrier bandwidth, thereby implementing load balancing, in one case, as shown in fig. 2, there is no shared bandwidth resource between the divided bandwidth parts, and the sum of the bandwidths of the bandwidth parts may be equal to or less than the carrier bandwidth. In this embodiment, a carrier bandwidth is taken as an example, that is, according to a maximum bandwidth supported by a terminal, the carrier is divided into a plurality of bandwidth parts having a bandwidth equal to the maximum bandwidth supported by the terminal, and the plurality of bandwidth parts are not overlapped with each other. The divided bandwidth parts may be numbered according to frequency band, and the bandwidth part index may be directly the number of at least one bandwidth part. That is, the different bandwidth part indexes represent different bandwidth parts, and after the terminal receives the bandwidth part indexes, the terminal may monitor at least one bandwidth part represented by the bandwidth part indexes according to the bandwidth part indexes. This example shows a case where the bandwidth values of the bandwidth parts are equal when the bandwidth parts are not overlapped, and actually, the bandwidth values of the bandwidth parts may be different when the bandwidth parts are not overlapped.
When the bandwidth of the bandwidth part is less than or equal to the maximum bandwidth supported by the terminal, there is another case, as shown in fig. 3, there is a Shared bandwidth resource between the bandwidth parts, that is, the sum of the bandwidths of all the bandwidth parts is greater than the carrier bandwidth, and in this embodiment, the Shared bandwidth resource is used for transmitting a Synchronization Signal block, which may include a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), or a Broadcast Channel (PBCH), and a control Channel resource, that is, a Physical Downlink Shared Channel (PDSCH). In this embodiment, the bandwidth value of the shared bandwidth resource may be fixed or may not be fixed, and when the bandwidth value of the shared bandwidth resource is fixed, that is, the frequency band position occupied by each bandwidth part is fixed, the bandwidth parts may be numbered according to the frequency band position occupied by the bandwidth part, and the bandwidth part index may be the number of at least one bandwidth part. When the bandwidth value of the shared bandwidth resource is not fixed, if numbering is performed according to the frequency band occupied by the bandwidth, confusion may occur, and the position of the preset resource block of the bandwidth part, for example, the starting position of the low frequency band resource block of the bandwidth part or the position of the middle resource block of the bandwidth part or the starting position of the high frequency band of the bandwidth part, needs to be included in the index of the bandwidth part. Alternatively, the position of the preset resource block and the bandwidth width of the bandwidth part are included in the bandwidth part index of the bandwidth part.
In the two embodiments, it is stated that the sum of the bandwidth portions is equal to or greater than the carrier bandwidth, and in fact, the sum of the bandwidth portions may also be smaller than the carrier bandwidth, in an alternative embodiment, the base station obtains the maximum bandwidth value supported by each terminal, and for a certain terminal, for example, the maximum bandwidth value supported by the terminal is 20MHz, 2 to 3 bandwidth portions with a bandwidth of 20MHz may be divided from the carrier bandwidth with a bandwidth of 100MHz, and one bandwidth portion among the 2 to 3 bandwidth portions with a bandwidth of 20MHz may be allocated to the terminal according to the data amount of the terminal and the load condition on the whole carrier.
When there is a shared bandwidth resource between bandwidth parts, there is also a case: to increase PDSCH resources, in an alternative embodiment, the secondary carriers may be divided such that one bandwidth portion completely contains another bandwidth portion. Specifically, the description will be given by taking two bandwidth parts, a bandwidth part one and a bandwidth part two as an example, where the bandwidth part one is smaller than the maximum bandwidth value supported by the terminal, the bandwidth part two is smaller than or equal to the maximum bandwidth value supported by the terminal, but the bandwidth part two is larger than the bandwidth part one, and the bandwidth part two includes the bandwidth part one. The first bandwidth part is used for the terminal to monitor the PSS/SSS/PBCH and the PDCCH, meanwhile, the first bandwidth part contains a small amount of PDSCH resources, the second bandwidth part has more PDSCH resources, and when the data volume of the terminal is increased, the second bandwidth part is allocated to the terminal to replace the first bandwidth part, so that the frequency spectrum resources for sending the PDSCH can be increased.
An embodiment of the present invention further provides a resource scheduling method, which is used for a terminal, where the terminal is accessed to the network device in the foregoing embodiment, and as shown in fig. 4, the method may include the following steps:
and S21, receiving the bandwidth part index from the network equipment. In this embodiment, when a terminal communicates with a network device, for example, a base station, the terminal may send a maximum bandwidth and a data size supported by the terminal to the network device, that is, the base station finds a bandwidth portion suitable for being allocated to the terminal according to the maximum bandwidth and the data size supported by the terminal and a load condition on its entire carrier, and generates a bandwidth portion index corresponding to the bandwidth portion, sends the bandwidth portion index to the terminal, and the terminal receives the bandwidth portion index sent by the base station.
And S22, monitoring at least one bandwidth part indicated by the bandwidth part index in the carrier wave. After receiving the bandwidth part index, the terminal selects one or more bandwidth parts to monitor according to the bandwidth part index, so that the terminal can be prevented from monitoring the whole carrier, and the power consumption of the terminal can be greatly reduced because the carrier monitored by the terminal is reduced.
An embodiment of the present invention provides a resource scheduling apparatus, which is used for a network device, and as shown in fig. 5, the apparatus includes: a first receiving unit 110, configured to obtain a maximum bandwidth supported by a terminal; the detailed implementation is shown in S11, and is not described herein. A first processing unit 120, configured to divide a carrier bandwidth into at least one bandwidth part according to a maximum bandwidth supported by a terminal; the bandwidth value of each bandwidth part is less than or equal to the maximum bandwidth supported by the terminal; the detailed implementation is shown in S12, and is not described herein. A second processing unit 130, configured to generate a bandwidth part index corresponding to at least one bandwidth part, where the bandwidth part index is used to instruct the terminal to monitor a bandwidth part corresponding to the bandwidth part index; the detailed implementation is shown in S13, and is not described herein. A sending unit 140, configured to schedule at least one bandwidth part for the terminal, and send a bandwidth part index corresponding to the bandwidth part to the terminal, where details of a specific implementation manner are described in S14, and details are not described here.
In an alternative embodiment, the bandwidth portion is equal to the maximum bandwidth supported by the terminal.
In an alternative embodiment, the bandwidth portion is smaller than the maximum bandwidth supported by the terminal.
In an alternative embodiment, there are no shared bandwidth resources between the bandwidth portions.
In an alternative embodiment, there are shared bandwidth resources between the bandwidth portions.
In an alternative embodiment, the shared bandwidth resource is used to transmit any one or combination of the synchronization signal block and the control channel resource.
In an alternative embodiment, the number of bandwidth portions having shared bandwidth resources is 2-3.
In an alternative embodiment, the sum of the bandwidths of all the bandwidth parts is smaller than the carrier bandwidth.
In an alternative embodiment, the sum of the bandwidths of all the bandwidth parts is equal to the carrier bandwidth.
In an alternative embodiment, the sum of the bandwidths of all the bandwidth parts is greater than the carrier bandwidth.
In an alternative embodiment, one of the bandwidth portions is larger than the other bandwidth portion and completely contains the other bandwidth portion.
In an optional embodiment, the bandwidth part index includes one or more of a number of the bandwidth part, a position of a preset resource block of the bandwidth part, and a bandwidth width of the bandwidth part.
An embodiment of the present invention further provides a resource scheduling apparatus, which is used for a terminal, and as shown in fig. 6, the apparatus may include:
a second receiving unit 210, configured to receive the bandwidth part index from the network device. The detailed implementation is shown in S21, and is not described herein. A third processing unit 220, configured to monitor at least one bandwidth part indicated by the bandwidth part index in the carrier. The detailed implementation is shown in S22, and is not described herein.
In an alternative embodiment, the bandwidth portion is equal to the maximum bandwidth supported by the terminal.
In an alternative embodiment, the bandwidth portion is smaller than the maximum bandwidth supported by the terminal.
In an alternative embodiment, there are no shared bandwidth resources between the bandwidth portions.
In an alternative embodiment, there are shared bandwidth resources between the bandwidth portions.
In an alternative embodiment, the shared bandwidth resource is used to transmit any one or combination of the synchronization signal block and the control channel resource.
In an alternative embodiment, the number of bandwidth portions having shared bandwidth resources is 2-3.
In an alternative embodiment, the sum of the bandwidths of all the bandwidth parts is smaller than the carrier bandwidth.
In an alternative embodiment, the sum of the bandwidths of all the bandwidth parts is equal to the carrier bandwidth.
In an alternative embodiment, the sum of the bandwidths of all the bandwidth parts is greater than the carrier bandwidth.
In an alternative embodiment, one of the bandwidth portions is larger than the other bandwidth portion and completely contains the other bandwidth portion.
In an optional embodiment, the bandwidth part index includes one or more of a number of the bandwidth part, a position of a preset resource block of the bandwidth part, and a bandwidth width of the bandwidth part.
An embodiment of the present invention further provides a network device, as shown in fig. 7, including a first controller, where the controller includes one or more first processors 71 and a memory 72, and one first processor 71 is taken as an example in fig. 7.
The first controller may further include: a first input device 73 and a first output device 74.
The first processor 71, the first memory 72, the first input device 73 and the first output device 74 may be connected by a bus or other means, and fig. 7 illustrates the connection by a bus as an example.
The first processor 71 may be a Central Processing Unit (CPU). The first Processor 71 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The first memory 72 is a non-transitory computer readable storage medium, and can be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the carrier bandwidth allocation method in the embodiment of the present application. The first processor 71 executes various functional applications and data processing of the base station by running non-transitory software programs, instructions and modules stored in the first memory 72, that is, implements the resource scheduling method of the above-described method embodiment.
The first memory 72 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of a processing device operated by the base station, and the like. Further, the first memory 72 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the first memory 72 may optionally comprise a memory located remotely from the first processor 71, and these remote memories may be connected to the resource scheduling device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The first input means 73 may receive input numeric or character information and generate key signal inputs related to terminal settings and function control of a processing means of the terminal. The first output device 74 may include a display device such as a display screen.
One or more modules are stored in the first memory 72, which when executed by the one or more first processors 71, perform the method as shown in fig. 1.
An embodiment of the present invention further provides a network device, as shown in fig. 8, which includes a second controller, where the controller includes one or more second processors 81 and a second memory 82, and one second processor 81 is taken as an example in fig. 8.
The second controller may further include: a second input device 83 and a second output device 84.
The second processor 81, the second memory 82, the second input device 83 and the second output device 84 may be connected by a bus or other means, and the bus connection is taken as an example in fig. 8.
The second processor 81 may be a Central Processing Unit (CPU). The second Processor 81 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The second memory 82, which is a non-transitory computer readable storage medium, may be used for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the resource scheduling method in the embodiments of the present application. The second processor 81 executes various functional applications and data processing of the base station by running non-transitory software programs, instructions and modules stored in the second memory 82, that is, implements the resource scheduling method of the above-described method embodiment.
The second memory 82 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of a processing device operated by the base station, and the like. Further, the second memory 82 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the second memory 82 may optionally include a memory located remotely from the second processor 81, and these remote memories may be connected to the resource scheduling device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The second input device 83 may receive input numeric or character information and generate key signal inputs related to terminal settings and function control of a processing device of the terminal. The second output device 84 may include a display device such as a display screen.
One or more modules are stored in the second memory 82, which when executed by the one or more second processors 81, perform the method as shown in fig. 4.
Embodiments of the present invention also provide a non-transitory computer readable medium storing computer instructions for causing a computer to perform a bandwidth portion allocation method as described in any one of the above embodiments. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (17)
1. A resource scheduling method is used for a network device, and the network device allocates carrier resources for an accessed terminal, and is characterized in that the method comprises the following steps:
acquiring the maximum bandwidth supported by the terminal;
dividing a carrier into at least one bandwidth part according to the maximum bandwidth supported by the terminal, wherein the bandwidth value of each bandwidth part is less than or equal to the maximum bandwidth supported by the terminal;
generating a bandwidth part index corresponding to the at least one bandwidth part;
scheduling at least one bandwidth part for the terminal, and initiating a bandwidth part index corresponding to the bandwidth part to be sent to the terminal;
when shared bandwidth resources exist among the bandwidth parts, dividing a secondary carrier of the carrier, wherein one bandwidth part completely contains another bandwidth part used for monitoring PSS/SSS/PBCH and PDCCH, and replacing the other bandwidth part with the one bandwidth part when the data volume of the terminal becomes large;
when shared bandwidth resources exist among the bandwidth parts and the bandwidth value of the shared bandwidth resources is not fixed, the starting position of the low-frequency resource block of the bandwidth part, the position of the middle resource block of the bandwidth part or the starting position of the high-frequency resource block of the bandwidth part is included in the index of the bandwidth part, or the position of a preset resource block and the bandwidth width of the bandwidth part are included in the index of the bandwidth part.
2. The resource scheduling method of claim 1,
there are no shared bandwidth resources between the bandwidth portions.
3. The resource scheduling method of claim 1,
the shared bandwidth resource is used for transmitting any one or combination of a synchronization signal block and a control channel resource.
4. The resource scheduling method of claim 3,
the number of bandwidth parts having said shared bandwidth resource is 2-3.
5. The resource scheduling method according to any of claims 1-4,
the bandwidth part index comprises one or more of the number of the bandwidth part, the position of the preset resource block of the bandwidth part and the bandwidth width of the bandwidth part.
6. The resource scheduling method of claim 5,
and in the step of sending the bandwidth part index corresponding to the bandwidth part to the terminal, adopting RRC signaling or DCI signaling bandwidth part index.
7. A resource scheduling method for a terminal, comprising:
receiving a bandwidth part index from a network device;
monitoring at least one bandwidth part indicated by the bandwidth part index in a carrier;
when shared bandwidth resources exist among the bandwidth parts, dividing a secondary carrier of the carrier, wherein one bandwidth part completely contains another bandwidth part used for monitoring PSS/SSS/PBCH and PDCCH, and replacing the other bandwidth part with the one bandwidth part when the data volume of the terminal becomes large;
when shared bandwidth resources exist among the bandwidth parts and the bandwidth value of the shared bandwidth resources is not fixed, the starting position of the low-frequency resource block of the bandwidth part, the position of the middle resource block of the bandwidth part or the starting position of the high-frequency resource block of the bandwidth part is included in the index of the bandwidth part, or the position of a preset resource block and the bandwidth width of the bandwidth part are included in the index of the bandwidth part.
8. A resource scheduling apparatus for a network device, comprising:
the first receiving unit is used for acquiring the maximum bandwidth supported by the terminal;
the first processing unit is used for dividing the carrier into at least one bandwidth part according to the maximum bandwidth supported by the terminal; the bandwidth value of each bandwidth part is less than or equal to the maximum bandwidth supported by the terminal;
a second processing unit for generating a bandwidth part index corresponding to the at least one bandwidth part;
a sending unit, configured to schedule at least one bandwidth part for the terminal, and send a bandwidth part index corresponding to the bandwidth part to the terminal;
when shared bandwidth resources exist among the bandwidth parts, dividing a secondary carrier of the carrier, wherein one bandwidth part completely contains another bandwidth part used for monitoring PSS/SSS/PBCH and PDCCH, and replacing the other bandwidth part with the one bandwidth part when the data volume of the terminal becomes large;
when shared bandwidth resources exist among the bandwidth parts and the bandwidth value of the shared bandwidth resources is not fixed, the starting position of the low-frequency resource block of the bandwidth part, the position of the middle resource block of the bandwidth part or the starting position of the high-frequency resource block of the bandwidth part is included in the index of the bandwidth part, or the position of a preset resource block and the bandwidth width of the bandwidth part are included in the index of the bandwidth part.
9. The resource scheduling apparatus of claim 8,
there are no shared bandwidth resources between the bandwidth portions.
10. The resource scheduling apparatus of claim 9,
the shared bandwidth resource is used for transmitting any one or combination of a synchronization signal block and a control channel resource.
11. The resource scheduling apparatus of claim 10,
the number of bandwidth parts having said shared bandwidth resource is 2-3.
12. The resource scheduling apparatus according to any of claims 8-11,
the bandwidth part index comprises one or more of the number of the bandwidth part, the position of the preset resource block of the bandwidth part and the bandwidth width of the bandwidth part.
13. The resource scheduling apparatus of claim 12,
and sending the bandwidth part index corresponding to the bandwidth part to the terminal in the sending unit by adopting RRC signaling or DCI signaling bandwidth part index.
14. A resource scheduling apparatus for a terminal, comprising:
a second receiving unit that receives the bandwidth part index from the network device;
a third processing unit, configured to monitor at least one bandwidth part indicated by the bandwidth part index in a carrier;
when shared bandwidth resources exist among the bandwidth parts, dividing a secondary carrier of the carrier, wherein one bandwidth part completely contains another bandwidth part used for monitoring PSS/SSS/PBCH and PDCCH, and replacing the other bandwidth part with the one bandwidth part when the data volume of the terminal becomes large;
when shared bandwidth resources exist among the bandwidth parts and the bandwidth value of the shared bandwidth resources is not fixed, the starting position of the low-frequency resource block of the bandwidth part, the position of the middle resource block of the bandwidth part or the starting position of the high-frequency resource block of the bandwidth part is included in the index of the bandwidth part, or the position of a preset resource block and the bandwidth width of the bandwidth part are included in the index of the bandwidth part.
15. A network device, comprising: a first controller comprising: at least one first processor; and a first memory communicatively coupled to the at least one first processor; wherein the first memory stores instructions executable by the at least one first processor to cause the at least one first processor to perform the method of resource scheduling according to any one of claims 1 to 6.
16. A terminal, comprising: a second controller comprising: at least one second processor; and a second memory communicatively coupled to the at least one second processor; wherein the second memory stores instructions executable by a second processor, the instructions being executable by the at least one second processor to cause the at least one second processor to perform the method of resource scheduling according to claim 7.
17. A non-transitory storage medium storing computer instructions for causing a computer to perform the resource scheduling method according to any one of claims 1 to 6 or perform the resource scheduling method according to claim 7.
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