CN110098903B - Uplink pilot frequency transmission method, user equipment and base station - Google Patents
Uplink pilot frequency transmission method, user equipment and base station Download PDFInfo
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- CN110098903B CN110098903B CN201810091877.4A CN201810091877A CN110098903B CN 110098903 B CN110098903 B CN 110098903B CN 201810091877 A CN201810091877 A CN 201810091877A CN 110098903 B CN110098903 B CN 110098903B
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
The embodiment of the invention provides an uplink pilot frequency transmission method, user equipment and a base station. The method comprises the following steps: acquiring uplink pilot frequency sending configuration corresponding to UE, which is determined according to Physical Uplink Shared Channel (PUSCH) time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe; and transmitting an uplink pilot signal according to the bearing position information. The scheme provided by the embodiment of the invention can meet the service requirements of different users, and improves the resource utilization rate and the frequency offset estimation accuracy of the base station.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to an uplink pilot frequency transmission method, user equipment and a base station.
Background
Currently, the LTE (Long Term Evolution) technology provides a high-speed data transmission service for users as a 4G mainstream technology. In some application scenarios based on the LTE technology, there may be users that do not move basically but have a large uplink transmission data amount, and there may also be users that have a small uplink transmission data amount. However, in the existing pilot transmission scheme, an uplink pilot mode with a fixed format is usually adopted in an uplink subframe, and the fixed pilot transmission mode may cause resource waste on one hand and may cause that a base station side cannot obtain accurate frequency offset estimation on the other hand.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention provides an uplink pilot frequency transmission method, user equipment and a base station, which can meet the service requirements of different users and improve the resource utilization rate and the frequency offset estimation accuracy of the base station.
In one aspect, an embodiment of the present invention provides an uplink pilot transmission method, including:
acquiring uplink pilot frequency sending configuration corresponding to UE, which is determined according to Physical Uplink Shared Channel (PUSCH) time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
and according to the bearing position information, bearing an uplink pilot signal to be sent in a PUSCH (physical uplink shared channel) allocated by the base station, and sending the uplink pilot signal to the base station through the PUSCH.
In another aspect, an embodiment of the present invention provides another uplink pilot transmission method, including:
acquiring uplink pilot frequency sending configuration of the UE determined according to PUSCH time-frequency resources distributed to the UE by a base station; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
and acquiring the uplink pilot signal sent by the UE from a PUSCH according to the bearing position information.
In another aspect, an embodiment of the present invention provides a user equipment, including:
a pilot configuration first obtaining unit, configured to obtain an uplink pilot transmission configuration corresponding to a UE, where the uplink pilot transmission configuration is determined according to a physical uplink shared channel PUSCH time-frequency resource allocated by a base station to the UE, and includes bearing position information of an uplink pilot signal in an uplink subframe;
and the uplink pilot signal sending unit is used for bearing the uplink pilot signal to be sent in the PUSCH allocated by the base station according to the bearing position information and sending the uplink pilot signal to the base station through the PUSCH.
In another aspect, an embodiment of the present invention provides a base station, including:
a pilot configuration second obtaining unit, configured to obtain an uplink pilot transmission configuration of the UE determined according to a PUSCH time-frequency resource allocated by the base station to the UE; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
and the uplink pilot signal acquisition unit is used for acquiring the uplink pilot signal sent by the UE from the PUSCH according to the bearing position information.
In another aspect, an embodiment of the present invention provides an electronic device, including a processor, a memory, and a bus, where:
the processor and the memory complete mutual communication through a bus;
the processor may invoke a computer program in memory to perform the steps of any of the methods described above.
In yet another aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of any one of the above-mentioned methods.
According to the uplink pilot frequency transmission method, the user equipment and the base station provided by the embodiment of the invention, the uplink pilot frequency transmission configuration corresponding to the UE determined according to the PUSCH time-frequency resource allocated to the UE by the base station is obtained, and the uplink pilot frequency signal is transmitted according to the bearing position information of the uplink pilot frequency signal in the uplink subframe included in the uplink pilot frequency transmission configuration, so that the service requirements of different users can be met, and the resource utilization rate and the frequency offset estimation accuracy of the base station are improved.
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 illustrates an exemplary flowchart of an uplink pilot transmission method according to an embodiment of the present invention;
fig. 2 illustrates an exemplary flowchart of an uplink pilot transmission method according to still another embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a user equipment according to an embodiment of the invention;
fig. 4 shows a schematic structural diagram of a base station according to an embodiment of the present invention;
FIG. 5 shows a physical schematic of an electronic device according to an embodiment of the invention;
fig. 6 shows a physical structure diagram of an electronic device according to still another embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
As used in this application, the terms "module," "device," and the like are intended to encompass a computer-related entity, such as but not limited to hardware, firmware, a combination of hardware and software, or software in execution. For example, a module may be, but is not limited to: a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. For example, an application running on a computing device and the computing device may both be a module. One or more modules may reside within a process and/or thread of execution and a module may be localized on one computer and/or distributed between two or more computers.
The technical scheme of the invention is explained in detail in the following with the accompanying drawings.
Referring to fig. 1, an exemplary flowchart of an uplink pilot transmission method according to an embodiment of the present invention is shown.
As shown in fig. 1, the uplink pilot transmission method provided in the embodiment of the present invention may include the following steps:
s110: acquiring uplink pilot frequency sending configuration corresponding to the UE, which is determined according to PUSCH time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe.
The uplink pilot transmission method provided by the embodiment of the invention is suitable for the UE (User Equipment) in the LTE (Long Term Evolution) 230M frequency band wireless communication private network system supporting the data acquisition of the smart grid of the power system.
In the embodiment of the invention, the UE can receive the uplink pilot frequency sending configuration corresponding to the UE sent by the base station through the downlink control channel. The Uplink pilot sending configuration corresponding to the UE may be determined by a base station according to a PUSCH (Physical Uplink Shared Channel) time-frequency resource allocated to the UE based on a service request of the UE.
Optionally, in the embodiment of the present invention, the uplink pilot transmission configuration corresponding to the UE may be determined by the UE based on the PUSCH time-frequency resource allocated by the base station. Specifically, after the UE initiates a service request to the base station and learns the PUSCH time-frequency resource allocated by the base station, the uplink pilot frequency transmission configuration corresponding to the UE may be determined according to the PUSCH time-frequency resource allocated by the base station.
In practical application, for UEs with different service requirements, the PUSCH time-frequency resources allocated by the base station to the UEs are different, and the number of consecutive subframes in the PUSCH time-frequency resources may also be different. For example, consider that in practical application, for a UE with a large demand for uplink transmission data volume, the number of uplink continuous subframes in the PUSCH time-frequency resource allocated by the UE is large; for users with small uplink transmission data volume requirements, the number of uplink continuous subframes in the PUSCH time-frequency resource allocated by the UE is small.
Further, considering that in the existing pilot transmission scheme of the LTE230M frequency band wireless communication private network supporting data acquisition of the smart grid of the power system, most users have the characteristics of large uplink transmission data volume and relative non-movement of the users, a base station generally allocates a plurality of continuous uplink subframes in the PUSCH allocated to the users, and a row of uplink pilots are set in the middle position of any uplink subframe. For a user with a small uplink transmission data amount, the base station may only have 1 uplink subframe in the PUSCH allocated to the user, that is, the number of continuous subframes is 1, and if a row of uplink pilot frequencies is set in the uplink subframe, the frequency offset estimation accuracy of the base station is affected in a scene where frequency offset exists.
Therefore, in the embodiment of the present invention, the above problem can be solved by controlling the number of times of transmitting the uplink pilot.
Specifically, the UE or the base station may determine the number of uplink continuous subframes in the PUSCH time-frequency resource according to the PUSCH time-frequency resource allocated by the base station to the UE; and then, determining the uplink pilot frequency sending configuration according to the number of uplink continuous subframes in the PUSCH time-frequency resource of the UE. The uplink pilot sending configuration comprises bearing position information of an uplink pilot signal in an uplink subframe.
In practical application, in order to facilitate the base station to rapidly analyze the uplink pilot signal sent by the UE, the UE may send the determined uplink pilot sending configuration to the base station without performing the determination process of the uplink pilot sending configuration at the base station side; in the case where the UE side does not perform the determination process of the uplink pilot transmission configuration, the base station may transmit the determined uplink pilot transmission configuration to the UE.
S120: and according to the bearing position information, bearing an uplink pilot signal to be sent in a PUSCH distributed by the base station, and sending the uplink pilot signal to the base station.
In the embodiment of the present invention, after the UE obtains the uplink pilot transmission configuration through step S110, in the process of transmitting the service data through the PUSCH, the UE may bear the uplink pilot signal to be transmitted at the corresponding position in the PUSCH according to the bearing position information in the uplink pilot transmission configuration, and send the service data and the uplink pilot signal to the base station through the PUSCH.
According to the uplink pilot frequency transmission method provided by the embodiment of the invention, the uplink pilot frequency sending configuration corresponding to the UE, which is determined according to the PUSCH time-frequency resource allocated to the UE by the base station, is obtained, the uplink pilot frequency signal to be sent is borne in the PUSCH allocated by the base station according to the bearing position information of the uplink pilot frequency signal in the uplink subframe included in the uplink pilot frequency sending configuration, and the uplink pilot frequency signal is sent to the base station through the PUSCH, so that the service requirements of different users can be met, and the resource utilization rate and the frequency offset estimation accuracy of the base station are improved.
Referring to fig. 2, there is shown an exemplary flowchart of an uplink pilot transmission method according to still another embodiment of the present invention.
As shown in fig. 2, the uplink pilot transmission method provided in the embodiment of the present invention may include the following steps:
s210: acquiring uplink pilot frequency sending configuration corresponding to the UE, which is determined according to PUSCH time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe.
The uplink pilot frequency transmission method provided by the embodiment of the invention is suitable for the base station in the LTE230M frequency band wireless communication private network system supporting the data acquisition of the intelligent power grid of the power system.
In the embodiment of the invention, the base station can receive the uplink pilot frequency sending configuration corresponding to the UE sent by the UE. The uplink pilot frequency transmission configuration corresponding to the UE may be determined by the UE according to the PUSCH time-frequency resource allocated to the UE based on the service request of the UE.
Optionally, in the embodiment of the present invention, the uplink pilot transmission configuration corresponding to the UE may be determined by the base station based on the PUSCH time-frequency resource allocated by the base station for the UE. Specifically, after receiving a service request sent by the UE and allocating PUSCH time-frequency resources to the UE, the base station may determine uplink pilot frequency sending configuration corresponding to the UE according to the allocated PUSCH time-frequency resources.
In practical application, for UEs with different service requirements, the PUSCH time-frequency resources allocated by the base station to the UEs are different, and the number of consecutive subframes in the PUSCH time-frequency resources may also be different. For example, consider that in practical application, for a UE with a large demand for uplink transmission data volume, the number of uplink continuous subframes in the PUSCH time-frequency resource allocated by the UE is large; for users with small uplink transmission data volume requirements, the number of uplink continuous subframes in the PUSCH time-frequency resource allocated by the UE is small.
Further, considering that in the existing pilot transmission scheme of the LTE230M frequency band wireless communication private network supporting data acquisition of the smart grid of the power system, most users have the characteristics of large uplink transmission data volume and relative non-movement of the users, a base station generally allocates a plurality of continuous uplink subframes in the PUSCH allocated to the users, and a row of uplink pilots are set in the middle position of any uplink subframe. For a user with a small uplink transmission data amount, the base station may only have 1 uplink subframe in the PUSCH allocated to the user, that is, the number of continuous subframes is 1, and if a row of uplink pilot frequencies is set in the uplink subframe, the frequency offset estimation accuracy of the base station is affected in a scene where frequency offset exists.
Therefore, in the embodiment of the present invention, the above problem can be solved by controlling the number of times of transmitting the uplink pilot.
Specifically, the UE or the base station may determine the number of uplink continuous subframes in the PUSCH time-frequency resource according to the PUSCH time-frequency resource allocated by the base station to the UE; and then, determining the uplink pilot frequency sending configuration according to the number of uplink continuous subframes in the PUSCH time-frequency resource of the UE. The uplink pilot sending configuration comprises bearing position information of an uplink pilot signal in an uplink subframe.
In practical application, in order to facilitate the base station to rapidly analyze the uplink pilot signal sent by the UE, the UE may send the determined uplink pilot sending configuration to the base station without performing the determination process of the uplink pilot sending configuration at the base station side; in the case where the UE side does not perform the determination process of the uplink pilot transmission configuration, the base station may transmit the determined uplink pilot transmission configuration to the UE.
S220: and acquiring the uplink pilot signal sent by the UE from a PUSCH according to the bearing position information.
In the embodiment of the present invention, after acquiring the uplink pilot transmission configuration in step S210, in the process of receiving the service data transmitted by the UE through the PUSCH, the base station may acquire the uplink pilot signal transmitted by the UE at the corresponding position in the PUSCH according to the bearing position information in the uplink pilot transmission configuration.
According to the uplink pilot frequency transmission method provided by the embodiment of the invention, the uplink pilot frequency sending configuration corresponding to the UE, which is determined according to the PUSCH time-frequency resource distributed to the UE by the base station, is obtained, and the uplink pilot frequency signal sent by the UE is obtained from the PUSCH according to the bearing position information of the uplink pilot frequency signal in the uplink subframe included in the uplink pilot frequency sending configuration, so that the service requirements of different users can be met, and the frequency offset estimation accuracy of the resource utilization base station is improved.
On the basis of the embodiment shown in fig. 1 or fig. 2, in an uplink pilot transmission method provided by another embodiment of the present invention, determining an uplink pilot transmission configuration according to the number of uplink continuous subframes includes:
if the number of the uplink continuous subframes is greater than or equal to a preset continuous subframe threshold, determining that the uplink pilot frequency information of the UE is a first uplink pilot frequency sending configuration;
and if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration.
Wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal; two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
In the embodiment of the present invention, the continuous subframe threshold is set by a person skilled in the art according to experience, for example, the continuous subframe threshold may be set to 2, 3, or 4.
Taking the threshold of the continuous sub-frame as 2 as an example, the base station schedules a single sub-frame for uplink channel transmission, and when the number of the uplink continuous sub-frames is 1, two columns of OFDM symbols are configured in each sub-frame in the second uplink pilot transmission configuration for carrying uplink pilot signals, that is, 2 columns of uplink pilots may be used in each sub-frame. The two columns of uplink pilots are distributed at different positions in the subframe, for example, the head and tail positions in the subframe, or one column is located at the head position of the subframe, and the other column is located at the middle position of the subframe. Therefore, the service requirement of the user with small uplink transmission data volume can be met.
Taking the continuous sub-frame threshold as 2 as an example, for the case of scheduling exceeding or including 2 continuous uplink sub-frames, that is, when the number of uplink associated sub-frames is greater than or equal to 2, a column of OFDM symbols is configured in each sub-frame in the first uplink pilot transmission configuration to carry uplink pilot signals, that is, 1 column of uplink pilot can be used in each sub-frame. Therefore, each subframe can send the uplink pilot frequency, the requirement of estimation of an uplink service channel is met, resources can be saved for transmitting uplink service data, and the resource utilization rate is improved.
In practical applications, the position of the OFDM symbol for carrying the uplink pilot signal in one uplink continuous subframe may be set empirically by those skilled in the art.
For example, the OFDM symbol used for carrying the uplink pilot signal in the subframe in the first uplink pilot transmission configuration is specifically an OFDM symbol corresponding to the middle position of the subframe.
And in the second uplink pilot frequency sending configuration, two columns of OFDM symbols used for bearing the uplink pilot signals in the subframe are respectively the OFDM symbol corresponding to the middle position of the subframe and the first column of OFDM symbols in the subframe.
Other steps of the embodiment of the present invention are similar to those of the previous embodiment, and are not described again in the embodiment of the present invention.
The uplink pilot transmission method provided by the embodiment of the invention introduces the preset continuous sub-frame threshold value to divide different service requirements, so that the mode of sending the uplink pilot signal by the UE can meet the service requirements of users, and the resource utilization rate and the user experience are improved.
On the basis of the above embodiments, another embodiment of the present invention provides a user equipment.
Referring to fig. 3, a schematic structural diagram of a user equipment according to an embodiment of the present invention is shown.
As shown in fig. 3, a user equipment 300 provided in an embodiment of the present invention may include: a pilot configuration first acquiring unit 301 and an uplink pilot signal transmitting unit 302.
The pilot configuration first obtaining unit 301 is configured to obtain an uplink pilot transmission configuration corresponding to the UE, where the uplink pilot transmission configuration is determined according to a physical uplink shared channel PUSCH time-frequency resource allocated by a base station for the UE, and the uplink pilot transmission configuration includes bearing position information of an uplink pilot signal in an uplink subframe.
The uplink pilot signal sending unit 302 is configured to bear, according to the bearing position information, an uplink pilot signal to be sent in a PUSCH allocated by the base station, and send the uplink pilot signal to the base station through the PUSCH.
Optionally, the pilot configuration first obtaining unit 301 is configured to receive an uplink pilot sending configuration sent by the base station.
Optionally, the pilot configuration first obtaining unit 301 is configured to determine, according to the PUSCH time-frequency resource allocated by the base station, an uplink continuous subframe number in the PUSCH time-frequency resource; and determining the uplink pilot frequency sending configuration according to the uplink continuous subframe number.
Optionally, the pilot configuration first obtaining unit 301 is specifically configured to determine that the uplink pilot information of the UE is a first uplink pilot sending configuration if the number of uplink continuous subframes is greater than or equal to a preset continuous subframe threshold;
if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal; two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
Optionally, an OFDM symbol used for carrying the uplink pilot signal in the subframe in the first uplink pilot transmission configuration is specifically an OFDM symbol corresponding to the middle position of the subframe; and in the second uplink pilot frequency transmission configuration, two columns of OFDM symbols in the subframe for carrying the uplink pilot signals are OFDM symbols corresponding to the middle position of the subframe and a first column of OFDM symbols in the subframe respectively.
The user equipment provided by the embodiment of the invention can meet the service requirements of different users and improve the resource utilization rate and the frequency offset estimation accuracy of the base station by acquiring the uplink pilot frequency sending configuration corresponding to the UE, which is determined according to the PUSCH time-frequency resource distributed by the base station for the UE, bearing the uplink pilot signal to be sent in the PUSCH distributed by the base station according to the bearing position information of the uplink pilot signal in the uplink subframe included in the uplink pilot frequency sending configuration, and sending the uplink pilot signal to the base station through the PUSCH.
The embodiment of the user equipment provided by the present invention may be specifically configured to execute the processing flow in the embodiment shown in fig. 1, and the functions of the embodiment are not described herein again, and refer to the detailed description of the embodiment of the method.
On the basis of the foregoing embodiments, another embodiment of the present invention provides a base station.
Referring to fig. 4, a schematic structural diagram of a base station according to an embodiment of the present invention is shown.
As shown in fig. 4, a base station 400 provided in an embodiment of the present invention may include: a pilot configuration second acquiring unit 401 and an uplink pilot signal acquiring unit 402.
The pilot configuration second obtaining unit 401 is configured to obtain an uplink pilot transmission configuration of the UE, which is determined according to a PUSCH time-frequency resource allocated by the base station to the UE; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe.
The uplink pilot signal obtaining unit 402 is configured to obtain an uplink pilot signal sent by the UE from a PUSCH according to the bearer location information.
Optionally, the pilot configuration second obtaining unit 401 is configured to receive an uplink pilot sending configuration sent by the UE.
Optionally, the pilot configuration second obtaining unit 401 is configured to determine, according to a PUSCH time-frequency resource allocated to the UE, an uplink continuous subframe number in the PUSCH time-frequency resource; and determining the uplink pilot frequency sending configuration according to the uplink continuous subframe number.
Optionally, the pilot configuration second obtaining unit 401 is specifically configured to determine that the uplink pilot information of the UE is the first uplink pilot sending configuration if the number of uplink continuous subframes is greater than or equal to a preset continuous subframe threshold; if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal; two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
Optionally, an OFDM symbol used for carrying the uplink pilot signal in the subframe in the first uplink pilot transmission configuration is specifically an OFDM symbol corresponding to the middle position of the subframe;
and in the second uplink pilot frequency transmission configuration, two columns of OFDM symbols in the subframe for carrying the uplink pilot signals are OFDM symbols corresponding to the middle position of the subframe and a first column of OFDM symbols in the subframe respectively.
According to the base station provided by the embodiment of the invention, the uplink pilot frequency sending configuration corresponding to the UE determined according to the PUSCH time-frequency resource distributed to the UE is obtained, and the uplink pilot frequency signal sent by the UE is obtained from the PUSCH according to the bearing position information of the uplink pilot frequency signal in the uplink subframe included in the uplink pilot frequency sending configuration, so that the service requirements of different users can be met, and the resource utilization rate and the frequency offset estimation accuracy of the base station are improved.
The embodiment of the base station provided in the present invention may be specifically configured to execute the processing flow of the embodiment shown in fig. 2, and the functions of the embodiment are not described herein again, and refer to the detailed description of the embodiment of the method.
Referring to fig. 5, a physical structure diagram of an electronic device according to an embodiment of the invention is shown. As shown in fig. 5, the electronic device 500 may include: a processor (processor)501, a memory (memory)502 and a bus 503, wherein the processor 501 and the memory 502 are communicated with each other through the bus 503. The processor 501 may call the computer program in the memory 502 to perform the methods provided by the above method embodiments, for example, including:
acquiring uplink pilot frequency sending configuration corresponding to UE, which is determined according to Physical Uplink Shared Channel (PUSCH) time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
and according to the bearing position information, bearing an uplink pilot signal to be sent in a PUSCH (physical uplink shared channel) allocated by the base station, and sending the uplink pilot signal to the base station through the PUSCH.
In another embodiment, the processor 501, when executing the computer program, implements the following method: the acquiring uplink pilot frequency sending configuration corresponding to the UE, which is determined according to the PUSCH time-frequency resource of the physical uplink shared channel allocated to the UE by the base station, comprises the following steps:
determining the number of uplink continuous subframes in the PUSCH time-frequency resource according to the PUSCH time-frequency resource distributed by the base station;
and determining the uplink pilot frequency sending configuration according to the uplink continuous subframe number.
In another embodiment, the processor 501, when executing the computer program, implements the following method: the determining the uplink pilot frequency sending configuration according to the uplink continuous subframe number comprises:
if the number of the uplink continuous subframes is greater than or equal to a preset continuous subframe threshold, determining that the uplink pilot frequency information of the UE is a first uplink pilot frequency sending configuration;
if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal;
two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
In another embodiment, in the first uplink pilot transmission configuration, an OFDM symbol used for carrying the uplink pilot signal in the subframe is specifically an OFDM symbol corresponding to a middle position of the subframe;
and in the second uplink pilot frequency transmission configuration, two columns of OFDM symbols in the subframe for carrying the uplink pilot signals are OFDM symbols corresponding to the middle position of the subframe and a first column of OFDM symbols in the subframe respectively.
The electronic device 500 provided by the embodiment of the invention at least has the following technical effects:
the uplink pilot frequency sending configuration corresponding to the UE is determined according to the PUSCH time-frequency resource distributed by the base station for the UE, the uplink pilot frequency signal to be sent is borne in the PUSCH distributed by the base station according to the bearing position information of the uplink pilot frequency signal in the uplink subframe included in the uplink pilot frequency sending configuration, and the uplink pilot frequency signal is sent to the base station through the PUSCH, so that the service requirements of different users can be met, and the resource utilization rate and the frequency offset estimation accuracy of the base station are improved.
Referring to fig. 6, a schematic physical structure diagram of an electronic device according to still another embodiment of the present invention is shown. As shown in fig. 6, the electronic device 600 may include: a processor (processor)601, a memory (memory)602, and a bus 603, wherein the processor 601 and the memory 602 communicate with each other via the bus 603. The processor 601 may call the computer program in the memory 602 to execute the methods provided by the above method embodiments, for example, including:
acquiring uplink pilot frequency sending configuration of the UE determined according to PUSCH time-frequency resources distributed to the UE by a base station; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
and acquiring the uplink pilot signal sent by the UE from a PUSCH according to the bearing position information.
In another embodiment, the processor 601, when executing the computer program, implements the following method: the acquiring of the uplink pilot frequency sending configuration of the UE determined according to the PUSCH time-frequency resource allocated to the UE by the base station comprises the following steps:
determining an uplink continuous subframe number in the PUSCH time-frequency resource according to the PUSCH time-frequency resource distributed to the UE; and determining the uplink pilot frequency sending configuration according to the uplink continuous subframe number.
In another embodiment, the processor 601, when executing the computer program, implements the following method: the determining the uplink pilot frequency sending configuration of the UE according to the uplink continuous subframe number comprises:
if the number of the uplink continuous subframes is greater than or equal to a preset continuous subframe threshold, determining that the uplink pilot frequency information of the UE is a first uplink pilot frequency sending configuration;
if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal;
two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
In another embodiment, in the first uplink pilot transmission configuration, an OFDM symbol used for carrying the uplink pilot signal in the subframe is specifically an OFDM symbol corresponding to a middle position of the subframe;
and in the second uplink pilot frequency transmission configuration, two columns of OFDM symbols in the subframe for carrying the uplink pilot signals are OFDM symbols corresponding to the middle position of the subframe and a first column of OFDM symbols in the subframe respectively.
The electronic device 600 provided by the embodiment of the invention at least has the following technical effects:
the uplink pilot frequency signal sent by the UE is obtained from the PUSCH according to the bearing position information of the uplink pilot frequency signal in the uplink subframe included in the uplink pilot frequency sending configuration, so that the service requirements of different users can be met, and the resource utilization rate and the frequency offset estimation accuracy of the base station are improved.
An embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer can execute the methods provided by the above method embodiments, for example, the method includes:
acquiring uplink pilot frequency sending configuration corresponding to UE, which is determined according to Physical Uplink Shared Channel (PUSCH) time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe; and according to the bearing position information, bearing an uplink pilot signal to be sent in a PUSCH (physical uplink shared channel) allocated by the base station, and sending the uplink pilot signal to the base station through the PUSCH.
Accordingly, embodiments of the present invention provide a non-transitory computer-readable storage medium storing a computer program, the computer program causing the computer to perform the methods provided by the above method embodiments, for example, including:
acquiring uplink pilot frequency sending configuration corresponding to UE, which is determined according to Physical Uplink Shared Channel (PUSCH) time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe; and according to the bearing position information, bearing an uplink pilot signal to be sent in a PUSCH (physical uplink shared channel) allocated by the base station, and sending the uplink pilot signal to the base station through the PUSCH.
Yet another computer program product is disclosed, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, which when executed by a computer, enable the computer to perform the methods provided by the above method embodiments, for example, including:
acquiring uplink pilot frequency sending configuration of the UE determined according to PUSCH time-frequency resources distributed to the UE by a base station; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe; and acquiring the uplink pilot signal sent by the UE from a PUSCH according to the bearing position information.
Accordingly, an embodiment of the present invention provides a non-transitory computer-readable storage medium storing a computer program, which causes the computer to execute the method provided by the above method embodiments, for example, including:
acquiring uplink pilot frequency sending configuration of the UE determined according to PUSCH time-frequency resources distributed to the UE by a base station; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe; and acquiring the uplink pilot signal sent by the UE from a PUSCH according to the bearing position information.
In addition, the logic instructions in the memory 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 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.
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 according to the various 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 (7)
1. An uplink pilot transmission method, comprising:
acquiring uplink pilot frequency sending configuration corresponding to UE, which is determined according to Physical Uplink Shared Channel (PUSCH) time-frequency resources allocated to the UE by a base station, wherein the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
according to the bearing position information, bearing an uplink pilot signal to be sent in a PUSCH (physical uplink shared channel) distributed by the base station, and sending the uplink pilot signal to the base station through the PUSCH;
the acquiring uplink pilot frequency sending configuration corresponding to the UE, which is determined according to the PUSCH time-frequency resource of the physical uplink shared channel allocated to the UE by the base station, comprises the following steps:
determining the number of uplink continuous subframes in the PUSCH time-frequency resource according to the PUSCH time-frequency resource distributed by the base station;
determining uplink pilot frequency sending configuration according to the uplink continuous subframe number;
the determining the uplink pilot frequency sending configuration according to the uplink continuous subframe number comprises:
if the number of the uplink continuous subframes is greater than or equal to a preset continuous subframe threshold, determining that the uplink pilot frequency information of the UE is a first uplink pilot frequency sending configuration;
if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal;
two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
2. The method of claim 1,
an OFDM symbol used for carrying the uplink pilot signal in the subframe in the first uplink pilot transmission configuration is specifically an OFDM symbol corresponding to the middle position of the subframe;
and in the second uplink pilot frequency transmission configuration, two columns of OFDM symbols in the subframe for carrying the uplink pilot signals are OFDM symbols corresponding to the middle position of the subframe and a first column of OFDM symbols in the subframe respectively.
3. An uplink pilot transmission method, comprising:
acquiring uplink pilot frequency sending configuration of the UE determined according to PUSCH time-frequency resources distributed to the UE by a base station; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
acquiring an uplink pilot signal sent by the UE from a PUSCH according to the bearing position information;
the acquiring of the uplink pilot frequency sending configuration of the UE determined according to the PUSCH time-frequency resource allocated to the UE by the base station comprises the following steps:
determining an uplink continuous subframe number in the PUSCH time-frequency resource according to the PUSCH time-frequency resource distributed to the UE; determining uplink pilot frequency sending configuration according to the uplink continuous subframe number;
wherein, the determining the uplink pilot frequency sending configuration of the UE according to the uplink continuous subframe number includes:
if the number of the uplink continuous subframes is greater than or equal to a preset continuous subframe threshold, determining that the uplink pilot frequency information of the UE is a first uplink pilot frequency sending configuration;
if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal;
two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
4. A user device, comprising:
a pilot configuration first obtaining unit, configured to obtain an uplink pilot transmission configuration corresponding to a UE, where the uplink pilot transmission configuration is determined according to a physical uplink shared channel PUSCH time-frequency resource allocated by a base station to the UE, and includes bearing position information of an uplink pilot signal in an uplink subframe;
an uplink pilot signal sending unit, configured to bear, according to the bearing position information, an uplink pilot signal to be sent in a PUSCH allocated by a base station, and send the uplink pilot signal to the base station through the PUSCH;
the acquiring uplink pilot frequency sending configuration corresponding to the UE, which is determined according to the PUSCH time-frequency resource of the physical uplink shared channel allocated to the UE by the base station, comprises the following steps:
determining the number of uplink continuous subframes in the PUSCH time-frequency resource according to the PUSCH time-frequency resource distributed by the base station;
determining uplink pilot frequency sending configuration according to the uplink continuous subframe number;
the determining the uplink pilot frequency sending configuration according to the uplink continuous subframe number comprises:
if the number of the uplink continuous subframes is greater than or equal to a preset continuous subframe threshold, determining that the uplink pilot frequency information of the UE is a first uplink pilot frequency sending configuration;
if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal;
two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
5. A base station, comprising:
a pilot configuration second obtaining unit, configured to obtain an uplink pilot transmission configuration of the UE determined according to a PUSCH time-frequency resource allocated by the base station to the UE; the uplink pilot frequency sending configuration comprises bearing position information of an uplink pilot frequency signal in an uplink subframe;
an uplink pilot signal obtaining unit, configured to obtain, from a PUSCH according to the bearer location information, an uplink pilot signal sent by the UE;
the acquiring of the uplink pilot frequency sending configuration of the UE determined according to the PUSCH time-frequency resource allocated to the UE by the base station comprises the following steps:
determining an uplink continuous subframe number in the PUSCH time-frequency resource according to the PUSCH time-frequency resource distributed to the UE; determining uplink pilot frequency sending configuration according to the uplink continuous subframe number;
wherein, the determining the uplink pilot frequency sending configuration of the UE according to the uplink continuous subframe number includes:
if the number of the uplink continuous subframes is greater than or equal to a preset continuous subframe threshold, determining that the uplink pilot frequency information of the UE is a first uplink pilot frequency sending configuration;
if the number of the uplink continuous subframes is less than a preset continuous subframe threshold value, determining that the uplink pilot frequency transmission configuration of the UE is a second uplink pilot frequency transmission configuration;
wherein, each subframe in the first uplink pilot frequency transmission configuration is configured with a column of OFDM symbols for carrying the uplink pilot frequency signal;
two columns of OFDM symbols are configured in each subframe in the second uplink pilot transmission configuration to carry the uplink pilot signal.
6. An electronic device comprising a processor, a memory, and a bus, wherein:
the processor and the memory complete mutual communication through a bus;
the processor may invoke a computer program in memory to perform the steps of the method of any of claims 1-2;
alternatively, the processor may invoke a computer program in memory to perform the steps of the method of claim 3.
7. A 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 according to any one of claims 1-2;
alternatively, the program is adapted to carry out the steps of the method of any of claim 3 when executed by a processor.
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