CN111901815A - Method for determining transmission power of data symbols, method for combining data symbols and device for combining data symbols - Google Patents

Method for determining transmission power of data symbols, method for combining data symbols and device for combining data symbols Download PDF

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CN111901815A
CN111901815A CN201910367134.XA CN201910367134A CN111901815A CN 111901815 A CN111901815 A CN 111901815A CN 201910367134 A CN201910367134 A CN 201910367134A CN 111901815 A CN111901815 A CN 111901815A
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target data
repeated
data symbol
data symbols
transmission
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朱莉森
王姗
龚秋莎
冯绍鹏
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Potevio Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters

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Abstract

The embodiment of the invention provides a method for determining the sending power of a data symbol, a method for combining the data symbol and a device thereof, wherein when a transmission block carried by a PUSCH is divided into K data symbols after being coded, the method comprises the following steps: receiving the power allowance reported by the terminal; according to the power margin, whether the terminal adjusts the sending power of the target data symbol with the residual repeated sending times is detected, and a detection result is obtained, wherein the residual repeated sending times is the difference value between M and N; and combining the target data symbols of the residual repeated sending times according to the detection result and the M and the N. The embodiment realizes that the reliability of the merged data symbols is basically consistent under the conflict condition, and improves the decoding performance.

Description

Method for determining transmission power of data symbols, method for combining data symbols and device for combining data symbols
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for determining transmit power of data symbols, a method for combining data symbols, and an apparatus for combining data symbols.
Background
LTE, as a 4G mainstream technology, provides users with high-speed data transmission services. In some application scenarios based on the LTE technology, such as data acquisition of a smart grid of a power system, a Downlink transmission acquisition instruction, and various types of data acquired by Uplink transmission, in order to support a Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat reQuest (HARQ), a terminal needs a Physical Uplink Control Channel (PUCCH) to feed back a decoding result of the PDSCH. In order to reduce PDSCH HARQ delay and fully utilize frequency domain resources, simultaneous transmission of the PUCCH and the PUSCH needs to be supported. In the power system, if the PUSCH uses the repetitive transmission and the PUCCH occupies a part of resources in the repetitive transmission, the terminal does not transmit PUSCH data to be transmitted in the resources occupied by the PUCCH.
For example, it is assumed that a Transport Block (TB) carried by PUSCH is divided into two TB blocks, i.e., TB1 and TB2, and coded and modulated, and then corresponding data symbols symbol is codedTB1And symbolBT2The method comprises the steps of mapping to resource blocks 1-4 and resource blocks 5-8 respectively for transmission, repeatedly sending the resource blocks 1-4, repeatedly sending the resource blocks 5-8, and enabling the contents of repeated sending to be identical every time. Since there are adjacent completely repeated resources in the current transmission of the PUSCH, if a PUCCH collision occurs, the PUCCH directly occupies the resources, and no PUSCH data is transmitted in the occupied resources, which may result in a decrease in the number of repeated transmission of data symbols. For example, symbol when PUCCH occupies resource 3 and resource 4TB1From 4 to 2, and symbolBT2The number of repeated transmissions of (a) is still unchanged. In a communication system with white noise in the channel environment, the reliability of the signal can be improved by accumulating the repeatedly transmitted data, but the repeated merging frequency of the TB1 is less than that of the TB2 due to the occupation of the PUCCHThe number of times of combining is repeated, resulting in a combined data symbol symbolcombinationTB1Is less reliable than symbolcombinationTB2The reliability of (2). In addition, the combined data symbols are demodulated and decoded to recover to TB, and the decoding effect is also affected by directly decoding the two portions of data symbols with different credibility after demodulation.
In summary, in the prior art, when the PUCCH collides with the PUSCH, the reliability after data symbol combination is inconsistent and the decoding effect is poor.
Disclosure of Invention
The embodiment of the invention provides a method for determining the sending power of a data symbol, a method for combining the data symbol and a device thereof, and aims to solve the problems of inconsistent reliability and poor decoding effect of the combined data symbol caused by the conflict between a PUCCH and a PUSCH in the prior art.
The embodiment of the invention provides a method for determining the transmission power of a data symbol, which is applied to a terminal, wherein when a transmission block carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being coded and modulated, the repeated transmission frequency of each data symbol in the K data symbols is M, and if N repeated transmission frequencies are occupied by a Physical Uplink Control Channel (PUCCH) in the repeated transmission frequency corresponding to a target data symbol, the method for determining the transmission power comprises the following steps:
acquiring normal transmission power of a current uplink shared channel (UL-SCH) and the maximum transmission power of a terminal;
determining the transmission power of the terminal when the target data symbols with the residual repeated transmission times are transmitted according to the repeated transmission times M of the target data symbols, the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols, the normal transmission power of the current UL-SCH and the maximum transmission power of the terminal; the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the number of the remaining repeated transmission times is a difference between M and N.
The embodiment of the invention provides a merging method of data symbols, which is applied to a base station, when a transmission block carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being coded and modulated, the repeated transmission frequency of each data symbol in the K data symbols is M, and if N repeated transmission frequencies are occupied by a Physical Uplink Control Channel (PUCCH) in the repeated transmission frequency corresponding to a target data symbol, the merging method comprises the following steps:
receiving the power allowance reported by the terminal;
detecting whether the terminal adjusts the sending power of a target data symbol of the residual repeated sending times according to the power margin to obtain a detection result, wherein the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the residual repeated sending times are the difference value of M and N;
and merging the target data symbols with the residual repeated sending times according to the detection result, the repeated sending times M of the target data symbols and the repeated sending times N occupied by the PUCCH in the repeated sending times of the target data symbols.
The embodiment of the present invention provides a device for determining transmission power of a data symbol, which is applied to a terminal, and when a transport block carried by a physical uplink shared channel PUSCH is divided into K data symbols after being coded and modulated, the number of times of repeat transmission of each data symbol in the K data symbols is M, and if there are N number of times of repeat transmission occupied by a physical uplink control channel PUCCH in the number of times of repeat transmission corresponding to a target data symbol, the device for determining transmission power includes:
the acquisition module is used for acquiring the normal transmission power of the current uplink shared channel UL-SCH and the maximum transmission power of a terminal;
a determining module, configured to determine, according to the number M of repeated transmissions of the target data symbol, the number N of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol, a normal transmission power of the current UL-SCH, and a maximum transmission power of the terminal, a transmission power of the terminal when transmitting the target data symbol of the remaining number of repeated transmissions; the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the number of the remaining repeated transmission times is a difference between M and N.
The embodiment of the present invention provides a merging device of data symbols, which is applied to a base station, and when a transmission block carried by a physical uplink shared channel PUSCH is divided into K data symbols after being coded and modulated, the number of times of repeat transmission of each data symbol in the K data symbols is M, and if there are N times of repeat transmission occupied by a physical uplink control channel PUCCH in the number of times of repeat transmission corresponding to a target data symbol, the merging device includes:
the receiving module is used for receiving the power allowance reported by the terminal;
a detection module, configured to detect, according to the power margin, whether the terminal adjusts the transmission power of a target data symbol for a remaining number of repeated transmission times to obtain a detection result, where the target data symbol is one of K data symbols, K, M and N are both positive integers, N is smaller than M, and the remaining number of repeated transmission times is a difference between M and N;
and the merging module is used for merging the target data symbols with the residual repeated sending times according to the detection result, the repeated sending times M of the target data symbols and the repeated sending times N occupied by the PUCCH in the repeated sending times of the target data symbols.
An embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method for determining the transmission power of data symbols or the steps of the method for combining data symbols when executing the program.
An embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method for determining transmission power of data symbols or the steps of the method for combining data symbols.
In the method for determining the transmission power of the data symbols, the method for combining the data symbols and the device provided by the embodiment of the invention, when a transmission block carried by a PUSCH is divided into K data symbols after being coded and modulated, the number of times of repeated transmission of each data symbol in the K data symbols is M, and N times of repeated transmission occupied by the PUCCH in the times of repeated transmission corresponding to a target data symbol exist, a base station detects whether a terminal adjusts the transmission power of the target symbol of the remaining times of repeated transmission according to a received power margin, combines the target data symbols of the remaining times of repeated transmission according to a detection result that whether the terminal adjusts the transmission power, combines the target data symbols of the remaining times of repeated transmission according to the detection result that whether the terminal adjusts the transmission power, ensures that the reliability of a plurality of data symbols after combination is basically consistent under the condition of PUCCH collision, thereby improving decoding performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a diagram illustrating a case where data symbols are repeatedly transmitted M times according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating steps of a method for determining transmission power of data symbols applied to a terminal according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating steps of a method for combining data symbols applied to a base station according to an embodiment of the present invention;
fig. 4 is a block diagram showing a transmission power determination apparatus for data symbols applied to a terminal according to an embodiment of the present invention;
fig. 5 is a block diagram of a data symbol combining apparatus applied to a base station according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this embodiment, when a Transport Block (TB) carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being subjected to coding adjustment, where the number of times of retransmission of each of the K data symbols is M, and if there are N times of retransmission occupied by a physical uplink control channel PUCCH in the number of times of retransmission corresponding to a target data symbol, where the target data symbol is one of the K data symbols, the determination of the transmission power of the data symbol may be performed by the method shown in fig. 2.
Specifically, it should be noted herein that the number M of repeated transmissions of the target data symbol and the number N of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol are acquired by the base station and transmitted to the terminal in advance.
Specifically, as shown in fig. 1, after the coding adjustment, the TB may be divided into TB1 and TB2 … … TBk data symbols, each data symbol may be repeatedly transmitted M times, and for each data symbol, in the M times of repeated transmission, the data symbol repeatedly transmitted each time is mapped onto different resources, that is, the data symbol in different times of repeated transmission is carried by different resources. For example, for one of the data symbols, the data symbol in the 1 st transmission may be carried by resource 1, the data symbol in the 2 nd repeated transmission may be carried by resource 2, and so on, and the data symbol in the mth repeated transmission may be carried by resource M. At this time, for the target data symbol (for example, TB1), if N of the M repetitions of the target data symbol are occupied by the PUCCH, that is, if resources corresponding to the N repetitions of the target data symbol are occupied by the PUCCH, as shown in fig. 2, the method for determining the transmission power of the data symbol may include the following steps:
step 201: and acquiring the normal transmission power of the current uplink shared channel (UL-SCH) and the maximum transmission power of the terminal.
Step 202: and determining the transmission power of the terminal when the target data symbol with the residual repeated transmission times is transmitted according to the repeated transmission times N occupied by the repeated transmission times M, PUCCH of the target data symbol in the repeated transmission times of the target data symbol, the normal transmission power of the current UL-SCH and the maximum transmission power of the terminal.
Specifically, the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the remaining repeated transmission times are a difference between M and N.
In addition, specifically, when determining the transmission power of the terminal when transmitting the target data symbol with the remaining number of repeated transmissions according to the number M of repeated transmissions of the target data symbol, the number N of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol, the normal transmission power of the current UL-SCH, and the maximum transmission power of the terminal, the transmission power of the terminal when transmitting the target data symbol with the remaining number of repeated transmissions may be calculated by the following formula;
Figure BDA0002048584870000061
wherein the content of the first and second substances,
PTBa transmission power value indicating a transmission power value at which the terminal transmits the target data symbol for the remaining number of times of repeated transmission; pmaxThe maximum transmission power of the terminal is shown, P shows the normal transmission power of the current UL-SCH, M shows the repeated transmission times of the target data symbol, and N shows the repeated transmission times occupied by the PUCCH in the repeated transmission times of the target data symbol.
In this way, when the terminal transmits the PUSCH data and when the repeated data symbol is occupied by the PUCCH, the transmission power of the terminal when transmitting the remaining number of repeated transmissions is adjusted by the above formula to increase the transmission power of the target data symbol of the remaining number of repeated transmissions, so that the reliability of the target data symbol of the remaining number of repeated transmissions after combining can be substantially equal to the reliability of the target data symbol of the remaining number of repeated transmissions after combining with other unoccupied data symbols, thereby improving the decoding performance.
In the method for determining transmission power of a data symbol provided in this embodiment, the transmission power of the terminal when transmitting the target data symbol with the remaining number of repeated transmissions is determined according to the number of repeated transmissions N occupied by the number of repeated transmissions M, PUCCH of the target data symbol in the number of repeated transmissions of the target data symbol, the normal transmission power of the current UL-SCH, and the maximum transmission power of the terminal, so that the terminal can adjust the transmission power of the remaining number of repeated transmissions of the target data symbol, and further the reliability of the target data symbol with the remaining number of repeated transmissions after being combined can be basically equal to the reliability of the target data symbol combined with other unoccupied data symbols, thereby improving the decoding performance.
In addition, as shown in fig. 3, it is a flowchart of steps of a method for combining data symbols applied to a base station in the embodiment of the present invention. When a transmission block carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being coded and modulated, the number of times of repeat transmission of each data symbol in the K data symbols is M, and if there are N number of times of repeat transmission occupied by a Physical Uplink Control Channel (PUCCH) in the number of times of repeat transmission corresponding to a target data symbol, the method includes the following steps:
step 301: and receiving the power allowance reported by the terminal.
Step 302: and according to the power margin, detecting whether the terminal adjusts the transmission power of the target data symbol with the residual repeated sending times to obtain a detection result.
In this step, specifically, the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the remaining number of repeated transmissions is a difference between M and N.
It should be noted that, for each data symbol, in M times of repeated transmission, the data symbol repeatedly transmitted each time is mapped onto a different resource, that is, the data symbol in different times of repeated transmission is carried by a different resource, so the number of times of repeated transmission N occupied by the PUCCH in the number of times of repeated transmission of the target data symbol refers to N resources occupied by the PUCCH in M resources corresponding to the M times of repeated transmission of the target data symbol.
Specifically, after the base station receives the power margin reported by the terminal, it may be detected whether the terminal adjusts the transmission power of the target data symbol for the remaining repeated transmission times according to the power margin, so as to obtain a detection result.
In addition, specifically, when the base station detects whether the terminal adjusts the transmission power of the target data symbol for the remaining number of repeated transmissions according to the power margin, and obtains a detection result, the base station may perform detection through the following steps:
judging whether the power margin is larger than the value of a preset formula or not;
when the power margin is detected to be larger than or equal to the value of the preset formula, obtaining a first detection result, wherein the first detection result indicates that the terminal adjusts the sending power of the target data symbol with the residual repeated sending times;
when the power margin is detected to be smaller than the value of the preset formula, obtaining a second detection result, wherein the second detection result indicates that the terminal does not adjust the transmission power of the target data symbol of the residual repeated transmission times; wherein the preset formula is as follows:
Figure BDA0002048584870000081
wherein the content of the first and second substances,
m represents the number of repeated transmissions of the target data symbol, and N represents the number of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol.
Specifically, when it is detected that the power margin is greater than the value of the preset formula, it indicates that the terminal adjusts the transmission power when the terminal transmits the target data symbol of the remaining number of times of repeated transmission, otherwise, it is determined that the terminal cannot adjust the transmission power of the terminal.
In this way, whether the sending power of the target data symbol with the residual repeated sending times is adjusted by the detection terminal or not is detected, so that the base station can select whether to revise the data symbol during combination according to the detection result so as to ensure that the reliability of the combined target data symbol is consistent with the reliability of the combined other data symbols, thereby improving the decoding performance.
Step 303: and merging the target data symbols with the residual repeated transmission times according to the detection result, the repeated transmission times M of the target data symbols and the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols.
In this step, specifically, after the detection result is obtained, the target data symbols of the remaining repeated transmission times may be combined according to the detection result and the values of M and N.
Specifically, when combining the target data symbols of the remaining number of repeated transmissions according to the detection result, the number of repeated transmissions M of the target data symbol, and the number of repeated transmissions N occupied by the PUCCH in the number of repeated transmissions of the target data symbol, the following two cases may be adopted:
first, when the detection result is the first detection result, merging the target data symbols of the remaining repeated transmission times according to the repeated transmission times M of the target data symbols and the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols by the following formula:
Figure BDA0002048584870000091
wherein the content of the first and second substances,
Sithe value of the merged target data symbol with the residual repeated sending times is shown when the ith data symbol in the K data symbols is the target data symbol; simRepresents a target data symbol at the time of the m-th repeated transmission; snr isimRepresenting the signal-to-noise ratio of a pre-obtained target resource, which is the target of the mth repeated transmissionMarking the resource carried by the data symbol; m represents the number of times of repeated transmission of the target data symbol, and M is naturally equal to or greater than 1 and equal to or less than M.
Therefore, when the detection result is the first detection result, the terminal is determined to adjust the transmission power of the target data symbol with the remaining repeated transmission times, and at this time, the base station does not need to revise the combined data symbol, and can also ensure that the reliability of the combined target data symbol is basically consistent with that of the combined other unoccupied data symbols, thereby improving the decoding performance.
Secondly, when the detection result is the second detection result, merging the target data symbols with the residual repeated sending times according to the repeated sending times M of the target data symbols and the repeated sending times N occupied by the PUCCH in the repeated sending times of the target data symbols by the following formula;
Figure BDA0002048584870000092
wherein the content of the first and second substances,
Sithe value of the merged target data symbol with the residual repeated sending times is shown when the ith data symbol in the K data symbols is the target data symbol; simRepresents a target data symbol at the time of the m-th repeated transmission; snr isimRepresenting the signal-to-noise ratio of a pre-obtained target resource, wherein the target resource is a resource for bearing a target data symbol during the mth repeated transmission; m represents the number of repeated transmissions of the target data symbol; n represents the number of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol.
In this way, when the detection result is the second detection result, it is determined that the terminal cannot adjust the transmission power of the target data symbols of the remaining number of times of retransmission, and at this time, the target data symbols of the remaining number of times of retransmission need to be combined and multiplied by the coefficient
Figure BDA0002048584870000101
I.e. target data symbol for adjusting the number of remaining retransmissionsThe weighted value after the number combination ensures that the reliability of the target data symbol after combination is basically consistent with the reliability of the data symbol after combination of other unoccupied data symbols even if PUCCH conflict exists, thereby improving the decoding performance.
In this way, according to the method for merging data symbols provided by this embodiment, whether the terminal adjusts the transmission power of the target symbol with the remaining number of repeated transmissions is detected according to the received power margin, and the target data symbols with the remaining number of repeated transmissions are merged according to the detection result, the number M of repeated transmissions of the target data symbols, and the number N of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbols, so that the base station can merge the target data symbols with the remaining number of repeated transmissions according to the detection result whether the terminal adjusts the transmission power, and it is ensured that the reliability after merging a plurality of data symbols is substantially consistent under the PUCCH collision condition, thereby improving the decoding performance.
Furthermore, as shown in fig. 4, a block diagram of a device for determining transmit power of a data symbol applied to a terminal in an embodiment of the present invention is shown, where a transport block carried by a physical uplink shared channel PUSCH is divided into K data symbols after being coded and modulated, a number of retransmission times of each of the K data symbols is M, and if there are N retransmission times occupied by a physical uplink control channel PUCCH in the number of retransmission times corresponding to a target data symbol, the device includes:
an obtaining module 401, configured to obtain a normal transmission power of a current uplink shared channel UL-SCH and a maximum transmission power of a terminal;
a determining module 402, configured to determine, according to the number M of repeated transmissions of the target data symbol, the number N of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol, a normal transmission power of the current UL-SCH, and a maximum transmission power of the terminal, a transmission power of the terminal when the terminal transmits the target data symbol of the remaining number of repeated transmissions; the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the number of the remaining repeated transmission times is a difference between M and N.
Optionally, the determining module is configured to calculate, according to the number of repeated transmission times M of the target data symbol, the number of repeated transmission times N occupied by the PUCCH in the number of repeated transmission times of the target data symbol, a normal transmission power of the current UL-SCH, and a maximum transmission power of the terminal, and according to the following formula, obtain a transmission power of the terminal when the target data symbol of the remaining number of repeated transmission times is transmitted;
Figure BDA0002048584870000111
wherein the content of the first and second substances,
PTBa transmission power value indicating a transmission power value at which the terminal transmits the target data symbol for the remaining number of times of repeated transmission; pmaxThe maximum transmission power of the terminal is shown, P shows the normal transmission power of the current UL-SCH, M shows the repeated transmission times of the target data symbol, and N shows the repeated transmission times occupied by the PUCCH in the repeated transmission times of the target data symbol.
Thus, the transmission power determination apparatus provided in this embodiment obtains the normal transmission power of the current uplink shared channel UL-SCH and the maximum transmission power of the terminal through the obtaining module, and the determining module determines the sending power of the terminal when sending the target data symbol with the residual repeated sending times according to the repeated sending times N occupied by the repeated sending times M, PUCCH of the target data symbol in the repeated sending times of the target data symbol, the normal transmission power of the current UL-SCH and the maximum transmission power of the terminal, so that the terminal can adjust the sending power of the residual repeated sending times of the target data symbol, and then the reliability of the target data symbols with the residual repeated sending times after combination can be basically equal to the reliability of the target data symbols after combination with other unoccupied data symbols, so that the decoding performance is improved.
Furthermore, as shown in fig. 5, a block diagram of an apparatus for combining data symbols applied to a base station in the embodiment of the present invention is shown, where a transport block carried by a PUSCH is divided into K data symbols after being coded and modulated, a number of retransmission times of each data symbol in the K data symbols is M, and if there are N retransmission times occupied by a PUCCH in the retransmission times corresponding to a target data symbol, the apparatus includes:
a receiving module 501, configured to receive a power margin reported by a terminal;
a detecting module 502, configured to detect, according to the power margin, whether the terminal adjusts the transmission power of a target data symbol with a remaining number of repeated transmissions, to obtain a detection result, where the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the remaining number of repeated transmissions is a difference between M and N;
a merging module 503, configured to merge the target data symbols with the remaining repeated transmission times according to the detection result, the repeated transmission times M of the target data symbol, and the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbol.
Optionally, the detecting module 502 includes:
the judging unit is used for judging whether the power margin is larger than the value of a preset formula or not;
a first obtaining unit, configured to obtain a first detection result when it is detected that the power margin is greater than or equal to the value of the preset formula, where the first detection result indicates that the terminal has adjusted the transmission power of the target data symbol for the remaining number of repeated transmissions;
a second obtaining unit, configured to obtain a second detection result when it is detected that the power margin is smaller than the value of the preset formula, where the second detection result indicates that the terminal does not adjust the transmission power of the target data symbol for the remaining number of repeated transmissions; wherein the preset formula is as follows:
Figure BDA0002048584870000121
wherein the content of the first and second substances,
m represents the number of repeated transmissions of the target data symbol, and N represents the number of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol.
Optionally, the merging module 503 includes:
a first merging unit, configured to, when the detection result is the first detection result, merge the target data symbols of the remaining repeated transmission times according to the repeated transmission times M of the target data symbols and the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols by using the following formula;
Figure BDA0002048584870000122
wherein the content of the first and second substances,
Sithe value of the merged target data symbol with the residual repeated sending times is shown when the ith data symbol in the K data symbols is the target data symbol; simRepresents a target data symbol at the time of the m-th repeated transmission; snr isimRepresenting the signal-to-noise ratio of a pre-obtained target resource, wherein the target resource is a resource for bearing a target data symbol during the mth repeated transmission; m represents the number of repeated transmissions of the target data symbol;
a second merging unit, configured to, when the detection result is the second detection result, merge the target data symbols of the remaining repeated transmission times according to the repeated transmission times M of the target data symbols and the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols by using the following formula;
Figure BDA0002048584870000123
wherein the content of the first and second substances,
Sithe value of the merged target data symbol with the residual repeated sending times is shown when the ith data symbol in the K data symbols is the target data symbol; simRepresents a target data symbol at the time of the m-th repeated transmission; snr isimRepresenting the signal-to-noise ratio of a pre-obtained target resource that carries the target data symbol when repeatedly transmitted the mth timeA resource; m represents the number of repeated transmissions of the target data symbol; n represents the number of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol.
In this way, the combining device provided in this embodiment receives the power margin reported by the terminal through the receiving module, and detects whether the terminal adjusts the transmission power of the target data symbols of the remaining repeated transmission times according to the power margin through the detecting module to obtain a detection result, and finally combines the target data symbols of the remaining repeated transmission times through the combining module according to the detection result, M, and N, so that the base station can combine the target data symbols of the remaining repeated transmission times according to the detection result whether the terminal adjusts the transmission power, thereby ensuring that the reliability after combining a plurality of data symbols is basically consistent under the condition of PUCCH collision, and thus improving the decoding performance.
In addition, as shown in fig. 6, an entity structure schematic diagram of the electronic device provided in the embodiment of the present invention is shown, where the electronic device may include: a processor (processor)610, a communication Interface (Communications Interface)620, a memory (memory)630 and a communication bus 640, wherein the processor 610, the communication Interface 620 and the memory 630 communicate with each other via the communication bus 640. The processor 610 may invoke a computer program stored on the memory 630 and executable on the processor 610 to perform the methods provided by the various embodiments described above, including, for example: acquiring normal transmission power of a current uplink shared channel (UL-SCH) and the maximum transmission power of a terminal; determining the transmission power of the terminal when the target data symbols with the residual repeated transmission times are transmitted according to the repeated transmission times M of the target data symbols, the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols, the normal transmission power of the current UL-SCH and the maximum transmission power of the terminal; the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the number of the remaining repeated transmission times is a difference between M and N.
Alternatively, it comprises: receiving the power allowance reported by the terminal; detecting whether the terminal adjusts the sending power of a target data symbol of the residual repeated sending times according to the power margin to obtain a detection result, wherein the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the residual repeated sending times are the difference value of M and N; and merging the target data symbols with the residual repeated sending times according to the detection result, the repeated sending times M of the target data symbols and the repeated sending times N occupied by the PUCCH in the repeated sending times of the target data symbols.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. 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.
Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the method provided in the foregoing embodiments when executed by a processor, and the method includes: acquiring normal transmission power of a current uplink shared channel (UL-SCH) and the maximum transmission power of a terminal; determining the transmission power of the terminal when the target data symbols with the residual repeated transmission times are transmitted according to the repeated transmission times M of the target data symbols, the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols, the normal transmission power of the current UL-SCH and the maximum transmission power of the terminal; the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the number of the remaining repeated transmission times is a difference between M and N.
Alternatively, it comprises: receiving the power allowance reported by the terminal; detecting whether the terminal adjusts the sending power of a target data symbol of the residual repeated sending times according to the power margin to obtain a detection result, wherein the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the residual repeated sending times are the difference value of M and N; and merging the target data symbols with the residual repeated sending times according to the detection result, the repeated sending times M of the target data symbols and the repeated sending times N occupied by the PUCCH in the repeated sending times of the target data symbols.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts 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 may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without 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-described 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 methods 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 will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still 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 of the embodiments of the present invention.

Claims (9)

1. When a transmission block carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being coded and modulated, the number of times of repeated transmission of each data symbol in the K data symbols is M, and if N repeated transmission times occupied by a Physical Uplink Control Channel (PUCCH) in the repeated transmission times corresponding to a target data symbol exist, the method for determining the transmission power of the data symbols is applied to a terminal and is characterized by comprising the following steps:
acquiring normal transmission power of a current uplink shared channel (UL-SCH) and the maximum transmission power of a terminal;
determining the transmission power of the terminal when the target data symbols with the residual repeated transmission times are transmitted according to the repeated transmission times M of the target data symbols, the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols, the normal transmission power of the current UL-SCH and the maximum transmission power of the terminal; the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the number of the remaining repeated transmission times is a difference between M and N.
2. The method of claim 1, wherein the determining the transmission power of the terminal when transmitting the target data symbol with the remaining number of repeated transmissions according to the number M of repeated transmissions of the target data symbol, the number N of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol, the normal transmission power of the current UL-SCH, and the maximum transmission power of the terminal comprises:
calculating to obtain the transmission power of the terminal when the terminal transmits the target data symbols with the residual repeated transmission times according to the repeated transmission times M of the target data symbols, the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols, the normal transmission power of the current UL-SCH and the maximum transmission power of the terminal;
Figure FDA0002048584860000011
wherein the content of the first and second substances,
PTBa transmission power value indicating a transmission power value at which the terminal transmits the target data symbol for the remaining number of times of repeated transmission; pmaxThe maximum transmission power of the terminal is shown, P shows the normal transmission power of the current UL-SCH, M shows the repeated transmission times of the target data symbol, and N shows the repeated transmission times occupied by the PUCCH in the repeated transmission times of the target data symbol.
3. A merging method of data symbols is applied to a base station, when a transmission block carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being coded and modulated, the repeated transmission frequency of each data symbol in the K data symbols is M, and N repeated transmission frequencies occupied by a Physical Uplink Control Channel (PUCCH) exist in the repeated transmission frequency corresponding to a target data symbol, the merging method is characterized by comprising the following steps:
receiving the power allowance reported by the terminal;
detecting whether the terminal adjusts the sending power of a target data symbol of the residual repeated sending times according to the power margin to obtain a detection result, wherein the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the residual repeated sending times are the difference value of M and N;
and merging the target data symbols with the residual repeated sending times according to the detection result, the repeated sending times M of the target data symbols and the repeated sending times N occupied by the PUCCH in the repeated sending times of the target data symbols.
4. The method according to claim 3, wherein the detecting whether the terminal adjusts the transmission power of the target data symbol with the remaining number of repeated transmissions according to the power margin to obtain the detection result comprises:
judging whether the power margin is larger than the value of a preset formula or not;
when the power margin is detected to be larger than or equal to the value of the preset formula, obtaining a first detection result, wherein the first detection result indicates that the terminal adjusts the sending power of the target data symbol with the residual repeated sending times;
when the power margin is detected to be smaller than the value of the preset formula, obtaining a second detection result, wherein the second detection result indicates that the terminal does not adjust the transmission power of the target data symbol of the residual repeated transmission times; wherein the preset formula is as follows:
Figure FDA0002048584860000021
wherein the content of the first and second substances,
m represents the number of repeated transmissions of the target data symbol, and N represents the number of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol.
5. The method according to claim 4, wherein the merging the target data symbols of the remaining number of repeated transmissions according to the detection result, the number of repeated transmissions M of the target data symbol, and the number of repeated transmissions N occupied by the PUCCH in the number of repeated transmissions of the target data symbol comprises:
when the detection result is the first detection result, merging the target data symbols with the residual repeated transmission times through the following formula according to the repeated transmission times M of the target data symbols and the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols;
Figure FDA0002048584860000031
wherein the content of the first and second substances,
Sithe value of the merged target data symbol with the residual repeated sending times is shown when the ith data symbol in the K data symbols is the target data symbol; simRepresents a target data symbol at the time of the m-th repeated transmission; snr isimRepresenting the signal-to-noise ratio of a pre-obtained target resource, wherein the target resource is a resource for bearing a target data symbol during the mth repeated transmission; m represents the number of repeated transmissions of the target data symbol;
when the detection result is the second detection result, merging the target data symbols with the residual repeated transmission times through the following formula according to the repeated transmission times M of the target data symbols and the repeated transmission times N occupied by the PUCCH in the repeated transmission times of the target data symbols;
Figure FDA0002048584860000032
wherein the content of the first and second substances,
Sithe value of the merged target data symbol with the residual repeated sending times is shown when the ith data symbol in the K data symbols is the target data symbol; simRepresents a target data symbol at the time of the m-th repeated transmission; snr isimRepresenting the signal-to-noise ratio of a pre-obtained target resource, wherein the target resource is a resource for bearing a target data symbol during the mth repeated transmission; m represents the number of repeated transmissions of the target data symbol; n represents the number of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol.
6. When a transport block carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being coded and modulated, the number of times of repeated transmission of each data symbol in the K data symbols is M, and if N repeated transmission times occupied by a Physical Uplink Control Channel (PUCCH) in the repeated transmission times corresponding to a target data symbol exist, the transmission power determination device applied to a terminal is characterized by comprising:
the acquisition module is used for acquiring the normal transmission power of the current uplink shared channel UL-SCH and the maximum transmission power of a terminal;
a determining module, configured to determine, according to the number M of repeated transmissions of the target data symbol, the number N of repeated transmissions occupied by the PUCCH in the number of repeated transmissions of the target data symbol, a normal transmission power of the current UL-SCH, and a maximum transmission power of the terminal, a transmission power of the terminal when transmitting the target data symbol of the remaining number of repeated transmissions; the target data symbol is one of K data symbols, K, M and N are positive integers, N is smaller than M, and the number of the remaining repeated transmission times is a difference between M and N.
7. A merging device of data symbols is applied to a base station, when a transmission block carried by a Physical Uplink Shared Channel (PUSCH) is divided into K data symbols after being coded and modulated, the number of times of repeated transmission of each data symbol in the K data symbols is M, and N times of repeated transmission occupied by a Physical Uplink Control Channel (PUCCH) in the number of times of repeated transmission corresponding to a target data symbol exist, the merging device comprises:
the receiving module is used for receiving the power allowance reported by the terminal;
a detection module, configured to detect, according to the power margin, whether the terminal adjusts the transmission power of a target data symbol for a remaining number of repeated transmission times to obtain a detection result, where the target data symbol is one of K data symbols, K, M and N are both positive integers, N is smaller than M, and the remaining number of repeated transmission times is a difference between M and N;
and the merging module is used for merging the target data symbols with the residual repeated sending times according to the detection result, the repeated sending times M of the target data symbols and the repeated sending times N occupied by the PUCCH in the repeated sending times of the target data symbols.
8. 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 implements the steps of the method for determining the transmission power of data symbols as claimed in claim 1 or 2 or the steps of the method for combining data symbols as claimed in any one of claims 3 to 5 when executing the program.
9. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for determining the transmission power of data symbols according to claim 1 or 2, or the steps of the method for combining data symbols according to any one of claims 3 to 5.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101808360A (en) * 2010-04-02 2010-08-18 中兴通讯股份有限公司 Method for reporting total power margin of user equipment and use equipment
CN103095629A (en) * 2011-11-01 2013-05-08 华为技术有限公司 Method, device and system for transmitting and receiving data
CN106716911A (en) * 2015-03-18 2017-05-24 华为技术有限公司 Method and device for data transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101808360A (en) * 2010-04-02 2010-08-18 中兴通讯股份有限公司 Method for reporting total power margin of user equipment and use equipment
CN103095629A (en) * 2011-11-01 2013-05-08 华为技术有限公司 Method, device and system for transmitting and receiving data
CN106716911A (en) * 2015-03-18 2017-05-24 华为技术有限公司 Method and device for data transmission

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
""RP-151186 Status Report for Further LTE Physical Layer Enhancements for MTC"", 《3GPP TSG_RAN\TSG_RAN》 *
CCL/ITRI: "R1-99b96 "Questions amp;amp; Answers of CCL/ITRI amp;apos;s MAC Procedures for CPCH"", 《3GPP TSG_RAN\WG1_RL1》 *
HUAWEI等: "R1-1801347 "Summary of remaining issues on bandwidth part and wideband operation"", 《3GPP TSG_RAN\WG1_RL1》 *

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