CN114025382B - 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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CN114025382B
CN114025382B CN202111006836.9A CN202111006836A CN114025382B CN 114025382 B CN114025382 B CN 114025382B CN 202111006836 A CN202111006836 A CN 202111006836A CN 114025382 B CN114025382 B CN 114025382B
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shared channel
physical
value
physical shared
time domain
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CN114025382A (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 the method comprises the following steps: acquiring a first parameter of a physical shared channel according to the time domain resource mapping type and the cyclic prefix value of the physical shared channel; acquiring a first determination of the total number of resource elements allocated to a physical shared channel in a physical resource block according to a first parameter; 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; determining a transport block size table according to configuration information of the user equipment; according to the scheduling information and the buffer status report size of the user equipment, inquiring the column index corresponding to the transmission block size table to obtain a corresponding physical resource block, and the invention can avoid the waste of physical resources of a cell and improve the utilization rate of the frequency spectrum of the cell; by means of table look-up, the processing efficiency of the base station software system is improved, the system processing time is shortened, 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 the 3gpp ts38.214 introduces the calculation of the transport block sizes (Transport Block Size, TBS) of the downlink physical shared channel (Physical Downlink Shared Channel, PDSCH) and the uplink physical shared channel (Physical Uplink Shared Channel, PUSCH), the TBS is calculated according to the scheduling information of the PDSCH or PUSCH and the number of physical resource blocks (Physical resource block, PRBs). However, the base station needs to calculate the number of PRBs according to the buffer status report (Buffer Status Report, BSR) size and the scheduling information of PDSCH or PUSCH, and cannot directly calculate the number of PRBs through the procedure introduced by TS 38.214.
Therefore, when the conventional base station calculates the number of PRBs, it calculates the number of PRBs according to the size of the BSR and PDSCH or PUSCH scheduling information, and the formula N in TS38.214 info ＝N RE ·R·Q m V pre-estimating a PRB number, where N in o To calculate an intermediate value of the information bits; n (N) RE A total number of Resource Elements (REs) for allocating PDSCH; r is the target code rate of PDSCH; q (Q) m Modulation order for PDSCH; v is PDSCH space multiplexingThe number of layers used. And according to the PRB number and the process of calculating TBS introduced by TS38.214, calculating whether the TBS corresponding to the PRB number is larger than or equal to the BSR size. If the TBS is more than or equal to the BSR, the number of the PRBs estimated at the time is the number of the PRBs required for subsequent scheduling; if the TBS is not satisfied and is greater than or equal to the BSR, the PRB number is gradually increased, and the process of calculating the TBS is introduced by TS38.214 again until the calculated TBS is greater than or equal to the BSR size, and the final PRB number is the PRB number required by subsequent scheduling.
It can be expected that when the base station adopts the method, the TBS corresponding to the number of PRBs is calculated to be larger than or equal to the size of the BSR for the first time, the TBS corresponding to the number of PRBs may be far larger than the size of the BSR, and the number of PRBs corresponding to the actual size of the BSR is smaller than the number of PRBs obtained by calculation, which can lead to cell physical resource waste and reduce the spectrum efficiency of the cell; when the TBS corresponding to the PRB number obtained by the first calculation is smaller than the BSR size, the base station needs to continuously increase the PRB number, and the TBS is calculated according to TS38.214 every time, and the increase of the PRB number is stopped until the calculated TBS is larger than or equal to the BSR size. In the PRB number calculation process, the software system of the base station needs to use a large number of processing operations such as multiplication, division, circulation and the like, so that the problems of large processing time consumption, increased time delay, overtime system processing and the like of the base station software system are caused.
Disclosure of Invention
The invention provides a processing method and a processing device for the number of physical resource blocks in a new air interface system, which are used for solving the defects of inaccurate calculation of RPB or overhigh consumed resources in the prior art, realizing quick and accurate finding of PRB corresponding to the size of BSR, avoiding physical resource waste and reducing system processing time delay.
The invention provides a processing method of 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 the time domain resource mapping type and the cyclic prefix value of the downlink physical shared channel; the first parameter comprises a physical shared channel time domain symbol value, a demodulation reference signal time domain symbol value, a total number of resource elements occupied by demodulation reference signals on a continuously preset subcarrier on a demodulation reference signal configuration type value, and other overhead values;
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 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 downlink physical shared channel and a modulation order of the downlink physical shared channel;
determining a transport block size table according to configuration information of the user equipment;
and inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain a corresponding physical resource block.
The invention provides a processing method for the number of physical resource blocks in a new air interface system, which is used for acquiring a first parameter of a downlink physical shared channel according to the time domain resource mapping type of the downlink physical shared channel, and specifically comprises 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 the symbol value {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 the symbol value {2,4,7};
when the time domain resource mapping type of the downlink physical shared channel is the first enumeration type, obtaining the time domain symbol value {1,2,3,4} of the demodulation reference signal according to the symbol value, when the time domain resource mapping type of the downlink physical shared channel is the second enumeration type, obtaining the time domain symbol value {1,2} of the demodulation reference signal according to the symbol value,
obtaining the total number of resource elements occupied by demodulation reference signals on a continuous preset subcarrier on the value of a single demodulation reference signal configuration type as {4,6};
and acquiring the other overhead values, wherein the other overhead values are {0,6,12,18}.
According to the method for processing the number of physical resource blocks in the new air interface system, the method for processing the number of physical resource blocks in the new air interface system acquires the total number of resource elements which are determined to be allocated to the downlink physical shared channel for the first time in the physical resource blocks according to the first parameter, and specifically comprises the following steps:
and obtaining the total number of the resource elements distributed 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 parameter.
The invention provides a processing method for the number of physical resource blocks in a new air interface system, which is characterized in that a transmission block size table is determined according to configuration information of user equipment, and the processing method specifically comprises the following steps:
and determining the corresponding transport block size table according to the configuration information of the user equipment and the total number of the resource elements distributed to the downlink physical shared channel in the physical resource block.
The invention provides a processing method for the number of physical resource blocks in a new air interface system, which is characterized by inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of user equipment to obtain a corresponding physical resource block, and 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 utilizing the row index and the buffer status report size 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, the row index and the buffer status report size are utilized to search the column index according to the scheduling information of the user equipment, and the value of the column index is used as the corresponding physical resource block, and the method specifically comprises the following steps:
and according to the scheduling information of the user equipment, searching a transmission block size corresponding to the buffer status report size to be scheduled of the user equipment by utilizing a row index, and taking a column index corresponding to the transmission block size as a corresponding physical resource block.
The invention also provides a processing device for the number of physical resource blocks in the new air interface system, which comprises:
the first acquisition module is used for acquiring a first parameter of the downlink physical shared channel according to the time domain resource mapping type and the cyclic prefix type of the downlink physical shared channel; the first parameter comprises a physical shared channel time domain symbol value, a demodulation reference signal time domain symbol value, a total number of resource elements occupied by demodulation reference signals on a continuously preset subcarrier on a demodulation reference signal configuration type value, 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;
the third acquisition module is used for 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; 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 the 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 a corresponding physical resource block.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the processing method of the number of physical resource blocks in the new air interface system.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of processing the number of physical resource blocks in a new air interface system as described in any of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements the steps of the method of processing the number of physical resource blocks in a new air interface system as described in any of the above.
The invention provides a processing method and a device for the number of physical resource blocks in a new air interface system, when a base station side schedules User Equipment (UE), the base station side determines the parameters of a TBS table according to the parameter configuration information of the UE, and the base station side determines the parameters of the TBS table according to the current scheduled I in the corresponding TBS table MCS And the size of the BSR, the PRB number of the PDSCH or the PUSCH is accurately determined, and when the base station side schedules the downlink or uplink BSR, the physical resource waste of the cell can be avoided, and the frequency spectrum utilization rate of the cell is improved; by means of table look-up, the processing efficiency of the base station software system is improved, the system processing time is shortened, and the system processing time delay is reduced.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a processing method for the number of physical resource blocks in a new air interface system provided by the invention;
fig. 2 is a specific flowchart of step S100 in the method for processing the number of physical resource blocks in the new air interface system provided by the present invention;
fig. 3 is a specific flowchart of step S200 in the method for processing the number of physical resource blocks in the new air interface system provided by the present invention;
fig. 4 is a specific flowchart of step S400 in the method for processing the number of physical resource blocks in the new air interface system provided by the present invention;
fig. 5 is a specific flowchart of step S500 in the method for processing the number of physical resource blocks in the new air interface system provided by the present invention;
fig. 6 is a schematic structural diagram of a processing device for 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 the processing device for the number of physical resource blocks in the new air interface system according to the present invention;
fig. 8 is a schematic structural diagram of a second obtaining module in the processing device for the number of physical resource blocks in the new air interface system provided by the present invention;
fig. 9 is a schematic diagram of a specific structure of a determining module in a processing device for the number of physical resource blocks in a new air interface system provided by the present invention;
fig. 10 is a schematic diagram of a specific structure of a processing module in a processing device for the number of physical resource blocks in a new air interface system according to the present invention;
fig. 11 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The method for processing the number of physical resource blocks in the new air interface system according to the present invention is described below with reference to fig. 1, and includes the following steps:
s100, according to the time domain resource mapping type and the cyclic prefix type of the physical shared channel (PDSCH) or the PUSCH, acquiring a first parameter of the downlink physical shared channel, wherein the first parameter comprises the time domain symbol value of the PDSCH or the PUSCH
Figure GDA0003418640560000071
Or->
Figure GDA0003418640560000072
Demodulation reference signal time domain symbol value +.>
Figure GDA0003418640560000073
The total number of resource elements occupied by demodulation reference signals on continuously preset subcarriers on the value of the configuration type of the demodulation reference signals is +.>
Figure GDA0003418640560000074
Other overhead value +.>
Figure GDA0003418640560000075
S200, according to the first parameter, obtaining the total number N 'of the resource elements which are determined to be allocated to the downlink physical shared channel in the physical resource block for the first time' RE 。
S300, acquiring a second parameter according to the type of the modulation coding format Table (Modulation and coding scheme Table, mcs-Table), and acquiring the TBS according to the second parameter. Wherein the second parameter comprises the type value of the mcs-Table, the value I of the modulation and coding strategy format index MCS The number of layers v of the antenna (layer), the target code rate of the physical shared channel and the modulation order of the physical shared channel, e.g. the target code rate R of the PDSCH and the modulation order Q of the PDSCH m 。
S400, determining a TBS table according to configuration information of the UE;
s500, inquiring column indexes corresponding to the TBS table according to scheduling information and BSR of the UE to obtain corresponding PRBs.
The invention relates to a processing method of physical resource block number in a new air interface system, when a base station side schedules UE, according to the parameter configuration information of the UE, the base station side determines the parameters of a TBS table, and in the corresponding TBS table, the base station side determines the parameters of a TBS table according to the current scheduled I MCS And the size of the BSR, the PRB number of the PDSCH or the PUSCH is accurately determined, and a cell can be avoided when the base station side schedules the downlink or the uplink BSRPhysical resource waste, and the utilization rate of the cell spectrum is improved; by means of table look-up, the processing efficiency of the base station software system is improved, the system processing time is shortened, and the system processing time delay is reduced.
The time domain resource mapping type (PDSCH mappingType) of the PDSCH is an enumeration type, corresponding to the protocol TS38.331 parameter PDSCH-timedomainresource allocation: : mapingtype has two types { typeA, typeB }, typeA is the first enumeration type, typeB is the second enumeration type.
The following describes a method for processing the number of physical resource blocks in the new air interface system with reference to fig. 2, taking a physical shared channel as a PDSCH for illustration, and the steps of PUSCH are similar to those of PDSCH, and step S100 specifically includes the following steps:
s110, when the time domain resource mapping Type of PDSCH is typeA, L values corresponding to PDSCH mapping Type values of Type A rows in the corresponding protocol TS38.214 Table5.1.2.1-1 are obtained by taking a cyclic prefix configuration Type of Normal cyclic prefix (common Type) and PDSCH mapping Type as Type A as an example
Figure GDA0003418640560000081
{3,4,5,6,7,8,9,10,11,12,13}; when the time domain resource mapping Type of the PDSCH is typeB, obtaining an L value set corresponding to a PDSCH mapping Type value Type B row in a corresponding protocol TS38.214 Table5.1.2.1-1 by taking a cyclic prefix configuration Type Normal cyclic prefix and PDSCH mapping Type Type B as an example
Figure GDA0003418640560000082
Is {2,4,7}.
S120, mapping types of time domain resources of the PDSCH obtained according to the step S110 and corresponding
Figure GDA0003418640560000091
Determining a set of demodulation reference signal (Demodulation Reference Signal, DMRS) symbol values corresponding to each PDSCH symbol value>
Figure GDA0003418640560000092
Specifically, when the time domain resource mapping type of the PDSCH is typeA, the method is based on
Figure GDA0003418640560000093
Obtain->
Figure GDA0003418640560000094
Is {1,2,3,4}; when the time domain resource mapping type of PDSCH is typeB, according to +.>
Figure GDA0003418640560000095
Obtain->
Figure GDA0003418640560000096
Is {1,2}.
Figure GDA0003418640560000097
Wherein (1)>
Figure GDA0003418640560000098
For DMRS position +.in protocol TS38.211Table7.4.1.1.2-3 or Table7.4.1.1.2-4>
Figure GDA0003418640560000099
Number of (A)>
Figure GDA00034186405600000910
The number of l' in Table7.4.1.1.2-5.
S130, obtaining REs occupied by the DMRS on the continuous preset subcarriers on the single DMRS configuration parameter value as {4,6}, according to the DMRS configuration parameter value. In this embodiment, the preset subcarriers are 12 subcarriers.
According to the calculation formula provided in protocol TS38.211 7.4.1.1.2:
Figure GDA00034186405600000911
where k' =0, 1, n is a non-negative integer, Δ is the subcarrier offset of DMRS at different antenna ports, due to the preset subcarriersThe carrier is 12 subcarriers k<The value of Δ does not affect the number of DMRSs, and Δ=0. Calculating the k value of Configuration type 1, wherein n= {0,1,2}, k' = {0,1}, and delta=0, and k= {0,2,4,6,8,10}; the k value of Configuration type 2, n= {0,1}, k' = {0,1}, Δ=0, then k= {0,1,6,7}, is calculated. The DMRS continuously presets the +.f. occupied by the DMRS on the sub-carriers on the single DMRS configuration parameter value>
Figure GDA00034186405600000912
Then will get +>
Figure GDA00034186405600000913
And multiplying the two to obtain the product.
S140, obtaining other spending value sets
Figure GDA00034186405600000914
Other overhead value sets->
Figure GDA00034186405600000915
{0,6,12,18}.
Figure GDA0003418640560000101
For protocol TS38.331PDSCH-ServerCellConfig, the configuration value of xOverhead, the parameter type is enumeration type { xOh, xOh, xOh18}, the parameter indicates that the PDSCH considers the overhead of CSI-RS, COESET and the like, and the value is xOh0 when the field is not configured by default; according to TS 38.214.5.1.3.2, the configuration values { xOh0, xOh6, xOh12, xOh18} of xOverhead correspond to {0,6,12,18}, respectively, { }>
Figure GDA0003418640560000102
{0,6,12,18}.
The following describes a method for processing the number of physical resource blocks in a new air interface system with reference to fig. 3, taking a physical shared channel as a PDSCH for illustration, where the steps of PUSCH are similar to those of 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' RE The formula of (2) calculates an intermediate variable N' RE And N' RE As one of the conditions for subsequent querying of the TBS table.
The following describes a method for processing the number of physical resource blocks in the new air interface system with reference to fig. 4, taking a physical shared channel as a PDSCH for illustration, and the steps of PUSCH are similar to those of PDSCH, and step S400 specifically includes the following steps:
s410, according to the configuration information of the UE and N' RE A corresponding TBS table is determined.
Specifically, the method comprises the following steps:
1) Each value of the cycle mcs-Table type, wherein the mcs-Table is a configuration value of a protocol TS38.331PDSCH-Config, and the parameter type is an enumeration type { qam, qam and 64LowSE }; the parameter represents the type of the mcs Table selected by the PDSCH, when the field is not configured by default, the value is qam, the set of the mcs-Table type values is { qam64, qam256, qam64LowsE }, and each value of the parameter represents the protocols TS38.214 Table 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, determining I MCS ，I MCS MCS index I for a row index in the protocol TS38.214 Table 5.1.3.1-1, table 5.1.3.1-2 or Table 5.1.3.1-3 MCS ；
3) Each value of the cyclic layers, namely, each value of the layer number v of the physical shared channel spatial multiplexing, is used for searching the condition of the TBS table when the UE is scheduled, and the value range v corresponding to the PDSCH is {1,2,3,4,5,6,7,8};
4) Cycle N' RE Each N 'takes on the value of each' RE The value of (2) is used for searching the condition of the TBS table when the UE is scheduled;
5) Cycle I MCS Each of which takes the value of each I MCS For querying the value of the mcs-Table type, v, N 'when scheduling UE' RE A row index in the determined TBS table;
6) According to I MCS Determination of R and Q m ；
7) Cycle n PRB Each n PRB For querying the value of the mcs-Table type, v, N 'when scheduling UE' RE Column index in a determined TBS table, where n PRB Representing the PRB value range specified by a New air interface (NR) of 5G, namely, the maximum supported 100MHz bandwidth of 5G NR, taking a subcarrier spacing of 30kHz as an example, the corresponding PRB maximum value is 273, then n PRB ＝1,2,3,…,273；
8) A TBS calculation step according to TS38.214, wherein each of the above N' RE 、n PRB 、R、Q m And v is carried into a formula to calculate and obtain TBS.
The TBS calculation steps are as follows:
81 According to N' RE And n PRB Calculate N RE ＝min(156,N′ RE )·n PRB Wherein N is RE Total number of REs for allocated PDSCH;
82 According to N RE 、R、Q m V calculating N info ＝N RE ·R·Q m ·v；
83 If N info 3824, execution 84), otherwise, execution 85);
84)N info not more than 3824, calculating intermediate number of quantized information bits
Figure GDA0003418640560000111
Figure GDA0003418640560000112
Wherein (1)>
Figure GDA0003418640560000113
Find N 'or more in protocol TS38.214 Table5.1.3.2-1' info As the TBS of the present calculation;
85)N info >3824 calculating intermediate number of quantized information bits
Figure GDA0003418640560000114
Figure GDA0003418640560000121
Wherein round represents rounding; when the target code rate R is less than or equal to 1/4, < + >>
Figure GDA0003418640560000122
Figure GDA0003418640560000123
At this time, a->
Figure GDA0003418640560000124
When the target code rate R>1/4 and N info >8424->
Figure GDA0003418640560000125
At this time, a->
Figure GDA0003418640560000126
When the target code rate R>1/4 and N info When the weight is less than or equal to 8424, the weight is less than or equal to the weight of the Chinese medicinal composition>
Figure GDA0003418640560000127
9) Storing the TBS calculated at this time into a TBS Table, wherein the Table header information is { mcs-Table type, layer number, N' RE Take value }, the row and column index of the table is { I } MCS ,n PRB }。
Therefore, step S400 imports all needed tables 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 used for current scheduling and the scheduling information of PDSCH' RE A corresponding TBS table is selected.
The following describes a method for processing the number of physical resource blocks in the new air interface system with reference to fig. 5, taking a physical shared channel as a PDSCH for illustration, and the steps of PUSCH are similar to those of PDSCH, and step S500 specifically includes the following steps:
s510, determining TBS tableRow index I of a trellis MCS And column index n PRB . In the method, the base station indexes i according to the MCS used by the scheduled UE MCS Line index i as the TBS table MCS 。
S520, according to the scheduling information of the UE, utilizing the row index I MCS And the BSR size searches the column index, and n is the column index PRB As the corresponding PRB, specifically, using row index I MCS Searching TBS corresponding to the size of BSR to be scheduled by the UE, and indexing n the column corresponding to the TBS PRB As corresponding PRBs.
The PRB (number) processing procedure of the PUSCH is consistent with that of the PDSCH, and the difference is the number of symbols of the PUSCH
Figure GDA0003418640560000128
And the corresponding DMRS symbol number +.>
Figure GDA0003418640560000129
The value set of the mcs-Table type is configured as 'enabled' and 'disabled' to take different mcs-tables according to the transmission precoding parameter transformPrecoder.
The processing device for the number of physical resource blocks in the new air interface system provided by the invention is described below, and the processing device for the number of physical resource blocks in the new air interface system described below and the processing method for the number of physical resource blocks in the new air interface system described above can be referred to correspondingly.
The processing apparatus for the number of physical resource blocks in the new air interface system according to the present invention is described below with reference to fig. 6, where the apparatus 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 the physical shared channel, i.e. PDSCH or PUSCH, where the first parameter includes a PDSCH or PUSCH symbol value
Figure GDA0003418640560000131
Or->
Figure GDA0003418640560000132
Demodulation reference signal time domain symbol value +.>
Figure GDA0003418640560000133
The total number of resource elements occupied by demodulation reference signals on continuously preset subcarriers on the value of the configuration type of the demodulation reference signals is +.>
Figure GDA0003418640560000134
Other overhead value +.>
Figure GDA0003418640560000135
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 determined for the first time' RE 。
And a third obtaining module 300, configured to obtain the second parameter according to the type of the mcs-Table, and obtain the TBS according to the second parameter. Wherein the second parameter comprises the type value of the mcs-Table, the value I of the modulation and coding strategy format index MCS The number of layers v of the antenna (layer), the target code rate of the physical shared channel and the modulation order of the physical shared channel, e.g. the target code rate R of the PDSCH and the modulation order Q of the PDSCH m 。
A determining module 400, configured to determine a TBS table according to configuration information of the UE.
And 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, and obtain a corresponding PRB.
The invention relates to a processing device for physical resource block number in a new air interface system, when a base station side schedules UE, the base station side determines parameters of a TBS table according to the parameter configuration information of the UE, and the parameters are checked in the corresponding TBS table according to the current scheduled I MCS And the size of the BSR, the PRB number of the PDSCH or the PUSCH is accurately determined, and when the base station side schedules the downlink or uplink BSR, the physical resource waste of the cell can be avoided, and the frequency spectrum utilization rate of the cell is improved; by means of table look-up, the processing efficiency of the base station software system is improved, the system processing time is shortened, and the system processing time delay is reduced.
The following describes the processing apparatus for the number of physical resource blocks in the new air interface system according to the present invention with reference to fig. 7, taking a physical shared channel as a PDSCH for example, and the steps of PUSCH are similar to those of PDSCH, where the first acquisition module 100 specifically includes:
a first obtaining unit 110, configured to obtain, when the time domain resource mapping Type of the PDSCH is typeA, an L value corresponding to a PDSCH mapping Type value being Type a row in a corresponding protocol TS38.214 table5.1.2.1-1, taking a cyclic prefix configuration Type being Normal cyclic prefix and PDSCH mapping Type being Type a as an example
Figure GDA0003418640560000141
{3,4,5,6,7,8,9,10,11,12,13}; when the time domain resource mapping Type of the PDSCH is typeB, obtaining an L value set corresponding to a PDSCH mapping Type value Type B row in a corresponding protocol TS38.214 Table5.1.2.1-1 by taking a cyclic prefix configuration Type Normal cyclic prefix and PDSCH mapping Type Type B as an example
Figure GDA0003418640560000142
Is {2,4,7}.
A second obtaining unit 120, configured to obtain a time domain resource mapping type and a corresponding time domain resource mapping type of the PDSCH obtained in step S110
Figure GDA0003418640560000143
Determining the set of DMRS symbol values corresponding to each PDSCH symbol value, namely +.>
Figure GDA0003418640560000144
And a third obtaining unit 130, configured to obtain, according to the DMRS configuration parameter value, that REs occupied by the DMRS on the continuously preset subcarriers on the single DMRS configuration parameter value is {4,6}. In this embodiment, the preset subcarriers are 12 subcarriers.
A fourth obtaining unit 140 for obtaining other overhead value sets
Figure GDA0003418640560000145
Other overhead value sets->
Figure GDA0003418640560000146
{0,6,12,18}.
The following describes the processing apparatus for the number of physical resource blocks in the new air interface system according to the present invention with reference to fig. 8, taking a physical shared channel as a PDSCH for example, and the steps of PUSCH are similar to those of PDSCH, and the second acquisition module 200 specifically includes:
a fifth obtaining unit 210 for obtaining 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' RE The formula of (2) calculates an intermediate variable N' RE And N' RE As one of the conditions for subsequent querying of the TBS table.
The following describes a processing apparatus for the number of physical resource blocks in a new air interface system according to the present invention with reference to fig. 9, taking a physical shared channel as a PDSCH for example, where the steps of PUSCH are similar to those of PDSCH, and the determining module 400 specifically includes:
a determining unit 410 for determining, according to the configuration information of the UE and N' RE A corresponding TBS table is determined.
The following describes a processing apparatus for the number of physical resource blocks in a new air interface system according to the present invention with reference to fig. 10, taking a physical shared channel as a PDSCH for example, where the steps of PUSCH are similar to those of PDSCH, and the processing module 500 specifically includes:
a first processing unit 510 for determining a row index I of the TBS table MCS And column index n PRB . In the method, the base station indexes i according to the MCS used by the scheduled UE MCS Line index i as the TBS table MCS 。
A second processing unit 520 for utilizing the row index I according to the scheduling information of the UE MCS And the BSR size searches the column index, and n is the column index PRB As the corresponding PRB, specifically, using row index I MCS Searching TBS corresponding to the size of BSR to be scheduled by the UE, and indexing n the column corresponding to the TBS PRB As corresponding PRBs.
PRB (number) of PUSCH processedThe process is consistent with the PRB (number) processing process of PDSCH, and is distinguished by the number of symbols of the PUSCH
Figure GDA0003418640560000151
And the corresponding DMRS symbol number +.>
Figure GDA0003418640560000152
The value set of the mcs-Table type is configured as 'enabled' and 'disabled' to take different mcs-tables according to the transmission precoding parameter transformPrecoder.
Fig. 11 illustrates a physical structure diagram of an electronic device, as shown in fig. 11, which may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. The processor 810 may call logic instructions in the memory 830 to perform a method of processing the number of physical resource blocks in a new air interface system, the method comprising the steps of:
s100, acquiring 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, a demodulation reference signal time domain symbol value, a total number of resource elements occupied by demodulation reference signals on a continuously preset subcarrier on a demodulation reference signal configuration type value, 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, inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain a corresponding physical resource block.
Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform 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, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, where the computer program when executed by a processor can perform a method for processing the number of physical resource blocks in a new air interface system provided by the above methods, where the method includes the following steps:
s100, acquiring 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 continuously presets the total number of resource elements occupied by demodulation reference signals on 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, inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain a corresponding physical resource block.
In yet another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a method for processing a number of physical resource blocks in a new air interface system provided by the above methods, the method comprising the steps of:
s100, acquiring 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, a demodulation reference signal time domain symbol value, a total number of resource elements occupied by demodulation reference signals on a continuously preset subcarrier on a demodulation reference signal configuration type value, 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, inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain a corresponding physical resource block.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several 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 respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (4)

1. The method for processing the number of the physical resource blocks in the new air interface system is characterized by comprising the following steps:
acquiring a first parameter of a 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, a demodulation reference signal time domain symbol value, a total number of resource elements occupied by demodulation reference signals on a continuously preset subcarrier on a demodulation reference signal configuration type value, 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 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;
determining a transport block size table according to configuration information of the user equipment;
inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain a corresponding physical resource block;
the method specifically comprises the following steps of:
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 the time domain symbol value {3,4,5,6,7,8,9,10,11,12,13} of the physical shared channel, 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 the time domain symbol value {2,4,7} of the physical shared channel;
obtaining the demodulation reference signal time domain symbol value {1,2,3,4} according to the physical shared channel time domain symbol value when the physical shared channel time domain resource mapping type is the first enumeration type, obtaining the demodulation reference signal time domain symbol value {1,2} according to the physical shared channel time domain symbol value when the physical shared channel time domain resource mapping type is the second enumeration type,
obtaining the total number {4,6} of resource elements occupied by demodulation reference signals on continuously preset subcarriers on the single demodulation reference signal configuration type value according to the demodulation reference signal configuration type value;
acquiring the other overhead values, wherein the other overhead values are {0,6,12,18};
the step of obtaining, according to the first parameter, the total number of the resource elements allocated to the physical shared channel in the physical resource block for the first time, specifically includes the following steps:
obtaining the total number of resource elements allocated to a physical shared channel in a physical resource block according to the value of each parameter in the first parameter;
the method for determining the transport block size table according to the configuration information of the user equipment specifically comprises the following steps:
determining the corresponding transport block size table according to the configuration information of the user equipment and the total number of resource elements allocated to the physical shared channel in the physical resource block;
inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain a corresponding physical resource block, wherein the method specifically comprises the following steps of:
determining a row index and a column index of the transport block size table;
searching a column index by utilizing a row index and the buffer status report size according to scheduling information of the user equipment, and taking the value of the column index as a corresponding physical resource block;
the step of searching the column index by utilizing the row index and the buffer status report size according to the scheduling information of the user equipment and taking the value of the column index as the corresponding physical resource block specifically comprises the following steps:
and according to the scheduling information of the user equipment, searching a transmission block size corresponding to the buffer status report size to be scheduled of the user equipment by utilizing a row index, and taking a column index corresponding to the transmission block size as a corresponding physical resource block.
2. A processing apparatus for a number of physical resource blocks in a new air interface system, comprising:
the first acquisition module is used for 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, a demodulation reference signal time domain symbol value, a total number of resource elements occupied by demodulation reference signals on a continuously preset subcarrier on a demodulation reference signal configuration type value, 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 determined for the first time;
the third acquisition module is used for 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; 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 the user equipment;
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 a corresponding physical resource block;
the method specifically comprises the following steps of:
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 the time domain symbol value {3,4,5,6,7,8,9,10,11,12,13} of the physical shared channel, 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 the time domain symbol value {2,4,7} of the physical shared channel;
obtaining the demodulation reference signal time domain symbol value {1,2,3,4} according to the physical shared channel time domain symbol value when the physical shared channel time domain resource mapping type is the first enumeration type, obtaining the demodulation reference signal time domain symbol value {1,2} according to the physical shared channel time domain symbol value when the physical shared channel time domain resource mapping type is the second enumeration type,
obtaining the total number {4,6} of resource elements occupied by demodulation reference signals on continuously preset subcarriers on the single demodulation reference signal configuration type value according to the demodulation reference signal configuration type value;
acquiring the other overhead values, wherein the other overhead values are {0,6,12,18};
the step of obtaining, according to the first parameter, the total number of the resource elements allocated to the physical shared channel in the physical resource block for the first time, specifically includes the following steps:
obtaining the total number of resource elements allocated to a physical shared channel in a physical resource block according to the value of each parameter in the first parameter;
the method for determining the transport block size table according to the configuration information of the user equipment specifically comprises the following steps:
determining the corresponding transport block size table according to the configuration information of the user equipment and the total number of resource elements allocated to the physical shared channel in the physical resource block;
inquiring a column index corresponding to a transmission block size table according to the scheduling information and the buffer status report size of the user equipment to obtain a corresponding physical resource block, wherein the method specifically comprises the following steps of:
determining a row index and a column index of the transport block size table;
searching a column index by utilizing a row index and the buffer status report size according to scheduling information of the user equipment, and taking the value of the column index as a corresponding physical resource block;
the step of searching the column index by utilizing the row index and the buffer status report size according to the scheduling information of the user equipment and taking the value of the column index as the corresponding physical resource block specifically comprises the following steps:
and according to the scheduling information of the user equipment, searching a transmission block size corresponding to the buffer status report size to be scheduled of the user equipment by utilizing a row index, and taking a column index corresponding to the transmission block size as a corresponding physical resource block.
3. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, implements the steps of the method of handling the number of physical resource blocks in a new air interface system according to claim 1.
4. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being 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 claim 1.
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