CN114025382A - Method and device for processing number of physical resource blocks in new air interface system - Google Patents

Method and device for processing number of physical resource blocks in new air interface system Download PDF

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CN114025382A
CN114025382A CN202111006836.9A CN202111006836A CN114025382A CN 114025382 A CN114025382 A CN 114025382A CN 202111006836 A CN202111006836 A CN 202111006836A CN 114025382 A CN114025382 A CN 114025382A
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shared channel
value
parameter
physical
type
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CN114025382B (en
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肖赵斌
田炜
王文
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Inspur Communication Technology Co Ltd
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Shandong Inspur Scientific Research Institute Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The invention provides a method and a device for processing the number of physical resource blocks in a new air interface system, which relate to the technical field of communication and comprise the following steps: acquiring a first parameter of the physical shared channel according to the time domain resource mapping type and the cyclic prefix value of the physical shared channel; acquiring the total number of resource elements which are allocated to the physical shared channel in the physical resource block for the first time according to the first parameter; acquiring a second parameter according to the type of the modulation coding format table, and acquiring the size of the transmission block according to the second parameter; determining a transmission block size table according to configuration information of user equipment; according to the scheduling information of the user equipment and the size of the buffer status report, the column index corresponding to the transmission block size table is inquired to obtain a corresponding physical resource block; by means of table lookup, the processing efficiency of the base station software system is improved, the system processing time is reduced, and the system processing time delay is reduced.

Description

Method and device for processing number of physical resource blocks in new air interface system
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for processing the number of physical resource blocks in a new air interface system.
Background
When introducing a Transport Block Size (TBS) of a Downlink Physical Downlink Shared Channel (PDSCH) and an Uplink Physical Shared Channel (PUSCH), 3GPP TS38.214 calculates the TBS according to scheduling information of the PDSCH or the PUSCH and the number of Physical Resource Blocks (PRBs). However, the base station needs to calculate the number of PRBs according to the size of the Buffer Status Report (BSR) and the scheduling information of the PDSCH or PUSCH, and cannot directly calculate the number of PRBs through the steps introduced by TS 38.214.
Therefore, when the conventional base station calculates the number of PRBs, according to the BSR size and the PDSCH or PUSCH scheduling information, according to formula N in TS38.214info＝NRE·R·QmV estimate a PRB number, where NinfoTo calculate the median value of the information bits; n is a radical ofREA total number of Resource Elements (REs) for allocating PDSCH; r is the target code rate of the PDSCH; qmIs the modulation order of the PDSCH; v is the number of layers of PDSCH spatial multiplexing. And then, according to the number of the PRBs and the procedure of calculating the TBS introduced in TS38.214, calculating whether the TBS corresponding to the number of the PRBs is greater than or equal to the BSR size. If the TBS is more than or equal to the BSR, the estimated PRB quantity is the PRB quantity required by subsequent scheduling; and if the TBS is not satisfied to be greater than or equal to the BSR, gradually increasing the number of PRBs, and repeating the process of calculating the TBS according to the TS38.214 until the calculated TBS is greater than or equal to the size of the BSR, wherein the final number of PRBs is the number of PRBs required by subsequent scheduling.
It can be expected that, when the base station adopts the above method, when the TBS corresponding to the number of PRBs obtained by the first calculation is greater than or equal to the size of the BSR, the TBS corresponding to the number of PRBs may be much greater than the size of the BSR, and the number of PRBs corresponding to the actual size of the BSR is smaller than the calculated number of PRBs, which may cause the waste of physical resources of the cell and reduce the spectrum efficiency of the cell; when the TBS corresponding to the PRB quantity obtained by the first calculation is smaller than the BSR size, the base station needs to go through the step of continuously increasing the PRB quantity and calculating the TBS according to the TS38.214 every time, and the increase of the PRB quantity is not stopped until the calculated TBS is larger than or equal to the BSR size. In the calculation process of the number of PRBs, a large number of processing operations such as multiplication, division, and circulation are required to be performed by a software system of a base station, which results in a large processing time consumption, an increased time delay, and even a system processing timeout.
Disclosure of Invention
The invention provides a method and a device for processing the number of physical resource blocks in a new air interface system, which are used for solving the defects of inaccurate RPB calculation or over-high resource consumption in the prior art, realizing the rapid and accurate finding of PRBs corresponding to the BSR sizes, avoiding the waste of physical resources and reducing the processing delay of the system.
The invention provides a method for processing the number of physical resource blocks in a new air interface system, which comprises the following steps:
acquiring a first parameter of a downlink physical shared channel according to a time domain resource mapping type and a cyclic prefix value of the downlink physical shared channel; the first parameter comprises a physical shared channel time domain symbol value and a demodulation reference signal time domain symbol value, and the total number of resource elements occupied by the demodulation reference signal on a continuous preset subcarrier and other overhead values are taken by the demodulation reference signal configuration type value;
acquiring the total number of resource elements which are allocated to the downlink physical shared channel in the physical resource block for the first time according to the first parameter;
acquiring a second parameter according to the type of a modulation coding format table, and acquiring the size of a transmission block according to the second parameter; the second parameter comprises a type value of a modulation coding format table, a value of a modulation and coding strategy format index, the number of layers of an antenna, a target code rate of a downlink physical shared channel and a modulation order of the downlink physical shared channel;
determining a transmission block size table according to configuration information of user equipment;
and inquiring the column index corresponding to the transmission block size table according to the scheduling information of the user equipment and the size of the buffer status report to obtain the corresponding physical resource block.
According to the method for processing the number of physical resource blocks in a new air interface system provided by the present invention, the obtaining of the first parameter of the downlink physical shared channel according to the time domain resource mapping type of the downlink physical shared channel specifically includes the following steps:
when the time domain resource mapping type of the downlink physical shared channel is a first enumeration type and the cyclic prefix is a common type, obtaining that the symbol value is {3,4,5,6,7,8,9,10,11,12,13}, and when the time domain resource mapping type of the downlink physical shared channel is a second enumeration type and the cyclic prefix is a common type, obtaining that the symbol value is {2,4,7 };
when the time domain resource mapping type of the downlink physical shared channel is a first enumeration type, obtaining that the demodulation reference signal time domain symbol value is {1,2,3,4} according to the symbol value, when the time domain resource mapping type of the downlink physical shared channel is a second enumeration type, obtaining that the demodulation reference signal time domain symbol value is {1,2} according to the symbol value,
obtaining the total number of resource elements occupied by demodulation reference signals on continuous preset subcarriers on a single demodulation reference signal configuration type value as {4,6}, according to the demodulation reference signal configuration type value;
and acquiring the other overhead values, wherein the other overhead values are {0,6,12 and 18 }.
According to the method for processing the number of the physical resource blocks in the new air interface system, which is provided by the invention, the total number of the resource elements which are allocated to the downlink physical shared channel in the physical resource block for the first time is obtained according to the first parameter, and the method specifically comprises the following steps:
and obtaining the total number of the resource elements which are allocated to the downlink physical shared channel in the physical resource block for the first time according to the value of each parameter in the first parameters.
According to the method for processing the number of physical resource blocks in the new air interface system, which is provided by the invention, the determination of the size table of the transmission block according to the configuration information of the user equipment specifically comprises the following steps:
and determining the corresponding transmission block size table according to the configuration information of the user equipment and the total number of the resource elements allocated to the downlink physical shared channel in the physical resource block for the first time.
According to the method for processing the number of physical resource blocks in the new air interface system, provided by the invention, the column index corresponding to the transmission block size table is inquired according to the scheduling information of the user equipment and the size of the buffer status report to obtain the corresponding physical resource block, and the method specifically comprises the following steps:
determining a row index and a column index of the transport block size table;
and searching a column index by using the row index and the size of the buffer status report according to the scheduling information of the user equipment, and taking the value of the column index as a corresponding physical resource block.
According to the method for processing the number of physical resource blocks in the new air interface system, provided by the invention, according to the scheduling information of the user equipment, the column index is searched by using the row index and the size of the buffer status report, and the value of the column index is used as a corresponding physical resource block, which specifically comprises the following steps:
and searching the size of a transmission block, corresponding to the size of the buffer status report to be scheduled, of the row by using the row index according to the scheduling information of the user equipment, and taking the column index corresponding to the size of the transmission block as a corresponding physical resource block.
The invention also provides a device for processing the number of physical resource blocks in the new air interface system, which comprises:
a first obtaining module, configured to obtain a first parameter of a downlink physical shared channel according to a time domain resource mapping type and a cyclic prefix type of the downlink physical shared channel; the first parameter comprises a physical shared channel time domain symbol value and a demodulation reference signal time domain symbol value, wherein the demodulation reference signal configuration type value comprises the total number of resource elements occupied by the demodulation reference signal on continuous preset subcarriers and other overhead values;
a second obtaining module, configured to obtain, according to the first parameter, a total number of resource elements allocated to the downlink physical shared channel in the physical resource block for the first time;
a third obtaining module, configured to obtain a second parameter according to a type of a modulation and coding format table, and obtain a size of a transport block according to the second parameter; the second parameter comprises a type value of a modulation coding format table, a value of a modulation and coding strategy format index, the number of layers of an antenna, a target code rate of a downlink physical shared channel and a modulation order of the downlink physical shared channel;
a determining module, configured to determine a transport block size table according to configuration information of a user equipment;
and the processing module is used for inquiring the column index corresponding to the transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain the corresponding physical resource block.
The present invention also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the program, the steps of the method for processing the number of physical resource blocks in any of the new air interface systems are implemented.
The present invention also provides a non-transitory computer readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for processing the number of physical resource blocks in the new air interface system according to any of the above.
The present invention also provides a computer program product, including a computer program, where the computer program, when executed by a processor, implements the steps of the method for processing the number of physical resource blocks in any of the new air interface systems.
The invention provides a method and a device for processing the number of physical resource blocks in a new air interface system.A base station side determines parameters for searching a TBS table according to the parameter configuration information of User Equipment (UE) when the UE is scheduled, and the parameters are arranged in the corresponding TBS table according to the currently scheduled IMCSAnd the BSR size, the PRB number of the PDSCH or the PUSCH is accurately determined, and when a base station side schedules a downlink or uplink BSR, the waste of cell physical resources can be avoided, and the cell spectrum utilization rate is improved; by means of table lookup, the processing efficiency of the base station software system is improved, and the number of the system is reducedThe processing time is shortened, and the system processing time delay is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings needed for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart of a method for processing the number of physical resource blocks in a new air interface system according to the present invention;
fig. 2 is a schematic flowchart of a specific step S100 in the method for processing the number of physical resource blocks in the new air interface system according to the present invention;
fig. 3 is a schematic flowchart of a specific step S200 in the method for processing the number of physical resource blocks in the new air interface system according to the present invention;
fig. 4 is a flowchart illustrating a specific process of step S400 in the method for processing the number of physical resource blocks in the new air interface system according to the present invention;
fig. 5 is a flowchart illustrating a specific process in step S500 of the method for processing the number of physical resource blocks in the new air interface system according to the present invention;
fig. 6 is a schematic structural diagram of a device for processing the number of physical resource blocks in the new air interface system according to the present invention;
fig. 7 is a schematic structural diagram of a first obtaining module in a processing apparatus for processing the number of physical resource blocks in a new air interface system according to the present invention;
fig. 8 is a schematic structural diagram of a second obtaining module in the processing apparatus for processing the number of physical resource blocks in the new air interface system according to the present invention;
fig. 9 is a schematic structural diagram of a specific determination module in the processing apparatus for the number of physical resource blocks in the new air interface system according to the present invention;
fig. 10 is a schematic structural diagram of a specific processing module in the processing apparatus for processing the number of physical resource blocks in the new air interface system according to the present invention;
fig. 11 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in 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 following describes a method for processing the number of physical resource blocks in a new air interface system according to the present invention with reference to fig. 1, where the method includes the following steps:
s100, acquiring a first parameter of a downlink physical shared channel according to a time domain resource mapping type and a cyclic prefix type of the physical shared channel, namely a PDSCH or PUSCH, wherein the first parameter comprises a PDSCH or PUSCH time domain symbol value
Figure BDA0003237180470000071
Or
Figure BDA0003237180470000072
Demodulation reference signal time domain symbol dereferencing
Figure BDA0003237180470000073
The total number of resource elements occupied by demodulation reference signals on continuous preset subcarriers on the value of demodulation reference signal configuration type
Figure BDA0003237180470000074
Other overhead values
Figure BDA0003237180470000075
S200, acquiring the total number N 'of resource elements allocated to the downlink physical shared channel in the physical resource block for the first time according to the first parameter'RE。
S300, acquiring a second parameter according to the type of a Modulation and coding scheme Table (mcs-Table), and acquiring the TBS according to the second parameter. Wherein the second parameter comprises a type value of the mcs-Table, and a value I of the modulation and coding strategy format indexMCSNumber of layers v of antenna (layer), target code rate of physical shared channel and modulation order of physical shared channel, e.g. target code rate R of PDSCH and modulation order Q of PDSCHm。
S400, determining a TBS table according to the configuration information of the UE;
s500, according to the scheduling information and BSR of the UE, inquiring a column index corresponding to the TBS table to obtain a corresponding PRB.
The invention relates to a processing method of physical resource block quantity in a new air interface system.A base station side determines parameters for checking a TBS table according to parameter configuration information of UE when the UE is scheduled, and the parameters are in the corresponding TBS table according to currently scheduled IMCSAnd the BSR size, the PRB number of the PDSCH or the PUSCH is accurately determined, and when a base station side schedules a downlink or uplink BSR, the waste of cell physical resources can be avoided, and the cell spectrum utilization rate is improved; by means of table lookup, the processing efficiency of the base station software system is improved, the system processing time is reduced, and the system processing time delay is reduced.
The time domain resource mapping type (PDSCH mappingType) of the PDSCH is an enumeration type, and the corresponding protocol TS38.331 parameter PDSCH-TimeDomainResourceAllocation: : mappingType, having two types of { type A, type B }, type A being a first enumeration type and type B being a second enumeration type.
The following describes the method for processing the number of physical resource blocks in the new air interface system in conjunction with fig. 2, taking a physical shared channel as a PDSCH as an example, where the step of the PUSCH is similar to that of the PDSCH, and step S100 specifically includes the following steps:
s110, when the time domain resource mapping Type of the PDSCH is Type A, the value of the PDSCH mapping Type in the corresponding protocol TS38.214table5.1.2.1-1 is the value of L corresponding to the Type A row, and taking the example that the cyclic prefix configuration Type is Normal cyclic prefix (Normal Type) and the PDSCH mapping Type is Type A, the method obtains the value
Figure BDA0003237180470000081
Is {3,4,5,6,7,8,9,10,11,12,13 }; when the time domain resource mapping Type of the PDSCH is Type B, the PDSCH mapping Type value in the corresponding protocol ts38.214table5.1.2.1-1 is the L value set corresponding to the Type B row, taking the cyclic prefix configuration Type as Normal cyclic prefix and the PDSCH mapping Type as Type B as examples, and obtaining the value set
Figure BDA0003237180470000082
Is {2,4,7 }.
S120, obtaining the time domain resource mapping type and the corresponding time domain resource mapping type of the PDSCH according to the step S110
Figure BDA0003237180470000091
Determining a set of Demodulation Reference Signal (DMRS) symbol values corresponding to each PDSCH symbol value
Figure BDA0003237180470000092
Specifically, when the time domain resource mapping type of the PDSCH is typeA, the method is based on
Figure BDA0003237180470000093
To obtain
Figure BDA0003237180470000094
Is {1,2,3,4 }; when the time domain resource mapping type of PDSCH is typeB, according to
Figure BDA0003237180470000095
To obtain
Figure BDA0003237180470000096
Is {1,2 }.
Figure BDA0003237180470000097
Wherein,
Figure BDA0003237180470000098
is the DMRS position in the protocol TS38.211 Table7.4.1.1.2-3 or Table7.4.1.1.2-4
Figure BDA0003237180470000099
The number of the (c) is,
Figure BDA00032371804700000910
the number of l's in Table7.4.1.1.2-5.
S130, obtaining that the REs occupied by the DMRS on the continuous preset subcarrier on the value of the single DMRS configuration parameter is {4,6} according to the value of the DMRS configuration parameter. In this embodiment, the preset subcarriers are 12 subcarriers.
According to the calculation formula provided in protocol TS38.2117.4.1.1.2:
Figure BDA00032371804700000911
where k' is 0,1, n is a non-negative integer, Δ is a subcarrier offset of DMRS at different antenna ports, and k is a preset subcarrier of 12 subcarriers<And 12, if the value of delta does not influence the number of the DMRSs, the value of delta is made to be 0. Calculating a value of k of Configuration type 1, wherein n is {0,1,2}, k' is {0,1}, and Δ is 0, and k is {0,2,4,6,8,10 }; and calculating the value of k of the Configuration type 2, wherein n is {0,1}, k' is {0,1}, and delta is 0, and k is {0,1,6,7 }. The DMRS occupies on the continuous preset sub-carrier on the single DMRS configuration parameter value
Figure BDA00032371804700000912
Figure BDA00032371804700000913
Then it will get
Figure BDA00032371804700000914
The result of the multiplication.
S140, acquiring other expense value sets
Figure BDA00032371804700000915
Other overhead value sets
Figure BDA00032371804700000916
Is {0,6,12,18 }.
Figure BDA0003237180470000101
The parameter type is enumeration type { xOh6, xOh12, xOh18} for the configuration value of xOverhead in the protocol TS38.331PDSCH-servingCellConfig, the parameter indicates that the PDSCH considers the overhead of CSI-RS, CORESET and the like, and when the field is not configured by default, the value is xOh 0; according to TS38.2145.1.3.2, the configuration values of xOverhead { xOh0, xOh6, xOh12, xOh18} correspond to {0,6,12,18},
Figure BDA0003237180470000102
is {0,6,12,18 }.
The following describes the method for processing the number of physical resource blocks in the new air interface system in conjunction with fig. 3, taking a physical shared channel as a PDSCH as an example, where the step of the PUSCH is similar to that of the PDSCH, and step 200 specifically includes the following steps:
s210, obtaining N 'according to the value of each parameter in the first parameters'RE. Specifically, the base station traverses each value of each parameter in the first parameters according to N 'in TS 38.214'RECalculating to obtain an intermediate variable N'REAnd is prepared from N'REAs one of the conditions for subsequent queries of the TBS table.
The following describes the method for processing the number of physical resource blocks in the new air interface system in conjunction with fig. 4, taking a physical shared channel as a PDSCH as an example, where the step of the PUSCH is similar to that of the PDSCH, and step S400 specifically includes the following steps:
s410, according to configuration information of UE and N'REAnd determining a corresponding TBS table.
Specifically, the method comprises the following steps:
1) cycling each value of an mcs-Table type, wherein the mcs-Table is a protocol TS38.331 PDSCH-Config, the configuration value of the mcs-Table and the parameter type are enumeration types { qam256, qam64LowSE }; the parameter represents the type of the mcs Table selected by the PDSCH, when the field is not configured by default, the value is qam64, the mcs-Table type value set is { qam64, qam256, qam64LowSE }, and each value of the parameter represents the protocols ts38.214table 5.1.3.1-1, Table 5.1.3.1-2 and Table 5.1.3.1-3, respectively. Each mcs-Table type value is used for searching the condition of the TBS Table when the UE is scheduled;
2) then, according to each value of the mcs-Table type, I is determinedMCS，IMCSIs the row index MCS indexI in the protocol TS38.214Table 5.1.3.1-1, Table 5.1.3.1-2 or Table 5.1.3.1-3MCS；
3) Each value of a cyclic layer, namely each value of the number v of layers of physical shared channel spatial multiplexing, the value of each layer is used for searching the condition of a TBS table when UE is scheduled, and the value range v corresponding to a PDSCH is {1,2,3,4,5,6,7,8 };
4) n 'is recycled'REEach value of N'REIs used to look up the conditions of the TBS table when scheduling the UE;
5) cycle IMCSEach value of (1), each IMCSIs used for inquiring the value v and N 'of the mcs-Table type when the UE is scheduled'REDetermining a row index in the TBS table;
6) according to IMCSDetermination of R and Qm；
7) Cycle nPRBEach value of nPRBIs used for inquiring the value v and N 'of the mcs-Table type when the UE is scheduled'REColumn index in the determined TBS table, where nPRBIndicating the PRB value range specified by a New Radio (NR) of 5G, that is, the maximum supported 100MHz bandwidth of the NR of 5G, taking a subcarrier spacing of 30kHz as an example, where the maximum corresponding PRB value is 273, then n isPRB＝1,2,3,…,273；
8) Calculating TBS according to TS38.214, and adding each N'RE、nPRB、R、 QmAnd v substituting the formula to calculate TBS.
The TBS calculation steps are as follows:
81) according to N'REAnd nPRBCalculating NRE＝min(156,N′RE)·nPRBWherein N isRETotal number of REs for which PDSCH is allocated;
82) according to NRE、R、QmV calculating Ninfo＝NRE·R·Qm·v；
83) If N is presentinfo3824 is not more than, 84 is executed), otherwise, 85 is executed);
84)Ninfo3824 or less, calculating the median number of quantized information bits
Figure BDA0003237180470000111
Figure BDA0003237180470000112
Wherein,
Figure BDA0003237180470000113
searching for being greater than or equal to N 'in protocol TS38.214Table5.1.3.2-1'infoThe first value of (a) is used as the TBS calculated this time;
85)Ninfo>3824 calculating an intermediate number of quantized information bits
Figure RE-GDA0003418640560000114
Figure RE-GDA0003418640560000121
Wherein round represents rounding; when the target code rate R is less than or equal to 1/4,
Figure RE-GDA0003418640560000122
Figure RE-GDA0003418640560000123
at this time, the process of the present invention,
Figure RE-GDA0003418640560000124
when target code rate R>1/4 and Ninfo>8424 (c), the temperature is controlled,
Figure RE-GDA0003418640560000125
at this time, the process of the present invention,
Figure RE-GDA0003418640560000126
when target code rate R>1/4 and NinfoWhen the content is less than or equal to 8424,
Figure RE-GDA0003418640560000127
9) the TBS calculated this time is stored in a TBS Table, and the Table header information is { mcs-Table type, Layer number and N'REValue, and the row and column indices of the table are { I }MCS,nPRB}。
Therefore, in step S400, all tables needed to be used are imported into the software system of the base station, and when the base station schedules the UE, the base station calculates N 'according to the mcs-Table type configured by the UE, the number of layers currently scheduled to use, and the scheduling information of the PDSCH'REThe corresponding TBS table is selected.
The following describes the method for processing the number of physical resource blocks in the new air interface system in conjunction with fig. 5, taking a physical shared channel as a PDSCH as an example, where the step of the PUSCH is similar to that of the PDSCH, and step S500 specifically includes the following steps:
s510, determining a row index I of the TBS tableMCSAnd column index nPRB. In the method, a base station indexes i according to MCS used by a scheduled UEMCSAs the row index i of the TBS tableMCS。
S520, according to the scheduling information of the UE, utilizing the line index IMCSAnd the BSR size is used for searching the column index and indexing the column by nPRBAs corresponding PRB, in particular, using the row index IMCSSearching TBS corresponding to the BSR size to be scheduled of the UE in the row, and indexing n corresponding to the TBSPRBAs a corresponding PRB.
The PRB (number) processing procedure of the PUSCH is identical to the PRB (number) processing procedure of the PDSCH, and the difference is the number of symbols of the PUSCH
Figure BDA0003237180470000129
And corresponding DMRS symbol number
Figure BDA00032371804700001210
The mcs-Table type value taking set is configured to be 'enabled' and 'disabled' according to the transmission precoding parameter transformRecoder to take different mcs-tables.
The following describes the processing apparatus of the number of physical resource blocks in the new air interface system provided by the present invention, and the processing apparatus of the number of physical resource blocks in the new air interface system described below and the processing method of the number of physical resource blocks in the new air interface system described above may be referred to each other correspondingly.
The following describes, with reference to fig. 6, a device for processing the number of physical resource blocks in a new air interface system according to the present invention, where the device includes:
a first obtaining module 100, configured to obtain a first parameter of a downlink physical shared channel according to a time domain resource mapping type and a cyclic prefix type of a physical shared channel, that is, a PDSCH or a PUSCH, where the first parameter includes a PDSCH or PUSCH symbol value
Figure BDA0003237180470000131
Or
Figure BDA0003237180470000132
Demodulation reference signal time domain symbol dereferencing
Figure BDA0003237180470000133
The total number of resource elements occupied by demodulation reference signals on continuous preset subcarriers on the value of the demodulation reference signal configuration type
Figure BDA0003237180470000134
Other overhead values
Figure BDA0003237180470000135
A second obtaining module 200, configured to obtain, according to the first parameter, a total number N 'of resource elements allocated to the downlink physical shared channel in the physical resource block for the first time'RE。
A third obtaining module 300, configured to obtain the second parameter according to the type of the mcs-TableAnd obtaining the TBS according to the second parameter. Wherein the second parameter comprises a type value of the mcs-Table, and a value I of the modulation and coding strategy format indexMCSNumber of layers v of antenna (layer), target code rate of physical shared channel and modulation order of physical shared channel, e.g. target code rate R of PDSCH and modulation order Q of PDSCHm。
A determining module 400, configured to determine the TBS table according to the configuration information of the UE.
The processing module 500 is configured to query a column index corresponding to the TBS table according to the scheduling information and the BSR of the UE, so as to obtain a corresponding PRB.
The invention relates to a processing device for physical resource block quantity in a new air interface system.A base station side determines parameters for checking a TBS table according to parameter configuration information of UE when the UE is scheduled, and the parameters are in the corresponding TBS table according to currently scheduled IMCSAnd the BSR size, the PRB number of the PDSCH or the PUSCH is accurately determined, and when a base station side schedules a downlink or uplink BSR, the waste of cell physical resources can be avoided, and the cell spectrum utilization rate is improved; by means of table lookup, the processing efficiency of the base station software system is improved, the system processing time is reduced, and the system processing time delay is reduced.
The following describes, with reference to fig. 7, a processing apparatus for processing the number of physical resource blocks in a new air interface system according to the present invention, which takes a physical shared channel as a PDSCH for example, where the step of the PUSCH is similar to that of the PDSCH, and the first obtaining module 100 specifically includes:
a first obtaining unit 110, configured to, when a time domain resource mapping Type of the PDSCH is Type a, obtain an L value corresponding to a PDSCH mapping Type value in a corresponding protocol TS38.214 tablet 5.1.2.1-1 as a Type a row, taking a cyclic prefix configuration Type as a Normal cyclic prefix and the PDSCH mapping Type as a Type a as an example, where the PDSCH mapping Type is Type a
Figure BDA0003237180470000141
Is {3,4,5,6,7,8,9,10,11,12,13 }; when the time domain resource mapping Type of the PDSCH is Type B, the mapping Type of the PDSCH in the corresponding protocol TS38.214table5.1.2.1-1 is the L value set corresponding to Type B row, and the cyclic prefix configuration Type is Normal cyclic prefix and the PDSCH is the PDSCH TypeTaking mapping Type as Type B as an example, obtain
Figure BDA0003237180470000142
Is {2,4,7 }.
A second obtaining unit 120, configured to obtain a time domain resource mapping type of the PDSCH obtained in step S110 and a corresponding type
Figure BDA0003237180470000143
Determining a set of DMRS symbol values for each PDSCH symbol value
Figure BDA0003237180470000144
A third obtaining unit 130, configured to obtain, according to the DMRS configuration parameter value, that REs occupied by the DMRS on the continuous preset subcarrier on the single DMRS configuration parameter value is {4,6 }. In this embodiment, the preset subcarriers are 12 subcarriers.
A fourth obtaining unit 140, configured to obtain other overhead value sets
Figure BDA0003237180470000145
Other overhead value sets
Figure BDA0003237180470000146
Is {0,6,12,18 }.
The following describes the processing apparatus for the number of physical resource blocks in the new air interface system in conjunction with fig. 8, taking a physical shared channel as a PDSCH as an example, where the step of the PUSCH is similar to that of the PDSCH, and the second obtaining module 200 specifically includes:
a fifth obtaining unit 210, configured to obtain N 'according to the value of each of the first parameters'RE. Specifically, the base station traverses each value of each parameter in the first parameters according to N 'in TS 38.214'RECalculating to obtain an intermediate variable N'REAnd is prepared from N'REAs one of the conditions for subsequent queries of the TBS table.
The following describes the processing apparatus for the number of physical resource blocks in the new air interface system in conjunction with fig. 9, taking a physical shared channel as a PDSCH as an example, where the step of the PUSCH is similar to that of the PDSCH, and the determining module 400 specifically includes:
a determining unit 410, configured to determine N 'according to the configuration information of the UE'REAnd determining a corresponding TBS table.
The following describes, with reference to fig. 10, a processing apparatus for processing the number of physical resource blocks in a new air interface system according to the present invention, which takes a physical shared channel as a PDSCH for example, where the steps of the PUSCH are similar to those of the PDSCH, and the processing module 500 specifically includes:
a first processing unit 510 for determining a row index I of the TBS tableMCSAnd column index nPRB. In the method, a base station indexes i according to MCS used by a scheduled UEMCSAs the row index i of the TBS tableMCS。
A second processing unit 520 for utilizing the row index I according to the scheduling information of the UEMCSLook up the column index by BSR size and index the column by nPRBIs used as the corresponding PRB, specifically, by using the row index IMCSSearching TBS corresponding to the BSR size to be scheduled of the UE in the row, and indexing n corresponding to the TBSPRBAs a corresponding PRB.
The PRB (number) processing procedure of the PUSCH is identical to the PRB (number) processing procedure of the PDSCH, and the difference is the number of symbols of the PUSCH
Figure BDA0003237180470000151
And corresponding DMRS symbol number
Figure BDA0003237180470000152
The mcs-Table type value taking set is configured to be 'enabled' and 'disabled' according to the transmission precoding parameter transformRecoder to take different mcs-tables.
Fig. 11 illustrates a physical structure diagram of an electronic device, and as shown in fig. 11, the electronic device may include: a processor (processor)810, a communication Interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication Interface 820 and the memory 830 communicate with each other via the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute a method for processing the number of physical resource blocks in the new air interface system, where the method includes the following steps:
s100, acquiring a first parameter of the physical shared channel according to the time domain resource mapping type and the cyclic prefix value of the physical shared channel; the first parameter comprises a physical shared channel time domain symbol value and a demodulation reference signal time domain symbol value, and the total number of resource elements occupied by the demodulation reference signal on a continuous preset subcarrier and other overhead values are taken on the demodulation reference signal configuration type value;
s200, acquiring the total number of resource elements which are allocated to the physical shared channel in the physical resource block for the first time according to the first parameter;
s300, acquiring a second parameter according to the type of the modulation coding format table, and acquiring the size of a transmission block according to the second parameter; the second parameter comprises a type value of a modulation coding format table, a value of a modulation and coding strategy format index, the number of layers of an antenna, a target code rate of a physical shared channel and a modulation order of the physical shared channel;
s400, determining a transmission block size table according to configuration information of user equipment;
s500, according to the scheduling information of the user equipment and the size of the buffer status report, inquiring a column index corresponding to a transmission block size table to obtain a corresponding physical resource block.
Furthermore, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product, where the computer program product includes a computer program, where the computer program is stored on a non-transitory computer readable storage medium, and when the computer program is executed by a processor, the computer is capable of executing the method for processing the number of physical resource blocks in a new air interface system provided by the foregoing methods, where the method includes the following steps:
s100, acquiring a first parameter of the physical shared channel according to the time domain resource mapping type and the cyclic prefix value of the physical shared channel; the first parameter comprises a physical shared channel time domain symbol value and a demodulation reference signal time domain symbol value, and the demodulation reference signal configuration type value comprises the total number of resource elements occupied by the demodulation reference signal on continuous preset subcarriers and other overhead values;
s200, acquiring the total number of resource elements which are allocated to the physical shared channel in the physical resource block for the first time according to the first parameter;
s300, acquiring a second parameter according to the type of the modulation coding format table, and acquiring the size of a transmission block according to the second parameter; the second parameter comprises a type value of a modulation coding format table, a value of a modulation and coding strategy format index, the number of layers of an antenna, a target code rate of a physical shared channel and a modulation order of the physical shared channel;
s400, determining a transmission block size table according to configuration information of user equipment;
s500, according to the scheduling information of the user equipment and the size of the buffer status report, inquiring a column index corresponding to a transmission block size table to obtain a corresponding physical resource block.
In another aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to, when executed by a processor, perform a method for processing the number of physical resource blocks in a new air interface system provided by the foregoing methods, where the method includes the following steps:
s100, acquiring a first parameter of the physical shared channel according to the time domain resource mapping type and the cyclic prefix value of the physical shared channel; the first parameter comprises a physical shared channel time domain symbol value and a demodulation reference signal time domain symbol value, and the total number of resource elements occupied by the demodulation reference signal on a continuous preset subcarrier and other overhead values are taken on the demodulation reference signal configuration type value;
s200, acquiring the total number of resource elements which are allocated to the physical shared channel in the physical resource block for the first time according to the first parameter;
s300, acquiring a second parameter according to the type of the modulation coding format table, and acquiring the size of a transmission block according to the second parameter; the second parameter comprises a type value of a modulation coding format table, a value of a modulation and coding strategy format index, the number of layers of an antenna, a target code rate of a physical shared channel and a modulation order of the physical shared channel;
s400, determining a transmission block size table according to configuration information of user equipment;
s500, according to the scheduling information of the user equipment and the size of the buffer status report, inquiring a column index corresponding to a transmission block size table to obtain a corresponding physical resource block.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate components may or may not be physically separate, and components displayed 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 modules can be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement the present invention without any inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A method for processing the number of physical resource blocks in a new air interface system is characterized by comprising the following steps:
acquiring a first parameter of the physical shared channel according to the time domain resource mapping type and the cyclic prefix value of the physical shared channel; the first parameter comprises a physical shared channel time domain symbol value and a demodulation reference signal time domain symbol value, and the demodulation reference signal configuration type value comprises the total number of resource elements occupied by the demodulation reference signal on continuous preset subcarriers and other overhead values;
acquiring the total number of resource elements which are allocated to the physical shared channel in the physical resource block for the first time according to the first parameter;
acquiring a second parameter according to the type of a modulation coding format table, and acquiring the size of a transmission block according to the second parameter; the second parameter comprises a type value of a modulation coding format table, a value of a modulation and coding strategy format index, the number of layers of an antenna, a target code rate of a physical shared channel and a modulation order of the physical shared channel;
determining a transmission block size table according to configuration information of user equipment;
and inquiring the column index corresponding to the transmission block size table according to the scheduling information of the user equipment and the size of the buffer status report to obtain the corresponding physical resource block.
2. The method according to claim 1, wherein the obtaining a first parameter of the physical shared channel according to a time domain resource mapping type of the physical shared channel includes:
when the time domain resource mapping type of the physical shared channel is a first enumeration type and the cyclic prefix is a common type, obtaining that the symbol value is {3,4,5,6,7,8,9,10,11,12,13}, and when the time domain resource mapping type of the physical shared channel is a second enumeration type and the cyclic prefix is a common type, obtaining that the symbol value is {2,4,7 };
when the time domain resource mapping type of the physical shared channel is a first enumeration type, obtaining that the demodulation reference signal time domain symbol value is {1,2,3,4} according to the symbol value, when the time domain resource mapping type of the physical shared channel is a second enumeration type, obtaining that the demodulation reference signal time domain symbol value is {1,2} according to the symbol value,
obtaining the total number of resource elements occupied by demodulation reference signals on continuous preset subcarriers on a single demodulation reference signal configuration type value as {4,6}, according to the demodulation reference signal configuration type value;
and acquiring the other overhead values, wherein the other overhead values are {0,6,12 and 18 }.
3. The method according to claim 1, wherein the obtaining, according to the first parameter, a total number of resource elements that are first determined to be allocated to a physical shared channel in a physical resource block includes:
and obtaining the total number of the resource elements which are allocated to the physical shared channel in the physical resource block for the first time according to the value of each parameter in the first parameters.
4. The method according to claim 1, wherein the determining a transport block size table according to configuration information of a user equipment includes:
and determining the corresponding transmission block size table according to the configuration information of the user equipment and the total number of the resource elements allocated to the physical shared channel in the physical resource block determined for the first time.
5. The method according to claim 1, wherein the querying a column index corresponding to a transport block size table according to the scheduling information of the ue and a buffer status report size to obtain a corresponding physical resource block specifically includes:
determining a row index and a column index of the transport block size table;
and searching a column index by using the row index and the size of the buffer status report according to the scheduling information of the user equipment, and taking the value of the column index as a corresponding physical resource block.
6. The method according to claim 5, wherein the method for processing the number of physical resource blocks in a new air interface system, according to scheduling information of a user equipment, searches for a column index by using a row index and the size of the buffer status report, and uses a value of the column index as a corresponding physical resource block, specifically includes the following steps:
and searching the size of a transmission block, corresponding to the size of the buffer status report to be scheduled, of the row by using the row index according to the scheduling information of the user equipment, and taking the column index corresponding to the size of the transmission block as a corresponding physical resource block.
7. A processing device for the number of physical resource blocks in a new air interface system is characterized by comprising:
a first obtaining module, configured to obtain a first parameter of a physical shared channel according to a time domain resource mapping type and a cyclic prefix value of the physical shared channel; the first parameter comprises a physical shared channel time domain symbol value and a demodulation reference signal time domain symbol value, and the demodulation reference signal configuration type value comprises the total number of resource elements occupied by the demodulation reference signal on continuous preset subcarriers and other overhead values;
a second obtaining module, configured to obtain, according to the first parameter, a total number of resource elements allocated to the physical shared channel in the physical resource block for the first time;
a third obtaining module, configured to obtain a second parameter according to a type of a modulation and coding format table, and obtain a size of a transport block according to the second parameter; the second parameter comprises a type value of a modulation coding format table, a value of a modulation and coding strategy format index, the number of layers of an antenna, a target code rate of a physical shared channel and a modulation order of the physical shared channel;
a determining module, configured to determine a transport block size table according to configuration information of a user equipment;
and the processing module is used for inquiring the column index corresponding to the transmission block size table according to the scheduling information of the user equipment and the size of the buffer status report to obtain the corresponding physical resource block.
8. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for processing the number of physical resource blocks in the new air interface system according to any one of claims 1 to 6 when executing the program.
9. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the method for processing the number of physical resource blocks in the new air interface system according to any one of claims 1 to 6.
10. A computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the steps of the method for processing the number of physical resource blocks in a new air interface system according to any one of claims 1 to 6.
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