CN111224744A - Data receiving and processing method and system, base station and terminal - Google Patents
Data receiving and processing method and system, base station and terminal Download PDFInfo
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- CN111224744A CN111224744A CN201811414119.8A CN201811414119A CN111224744A CN 111224744 A CN111224744 A CN 111224744A CN 201811414119 A CN201811414119 A CN 201811414119A CN 111224744 A CN111224744 A CN 111224744A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
- H04L1/0018—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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Abstract
The invention provides a data receiving and processing method and system, a base station and a terminal, wherein the data receiving and processing method comprises the following steps: sending a first uplink authorization and a second uplink authorization to a target terminal; receiving and demodulating first type data sent by a target terminal according to a first uplink authorization and second type data sent by a second uplink authorization; and executing preset operation according to the receiving result or the demodulation result of the first class data and the second class data. By applying the technical scheme provided by the invention, the two data are tried to be received and demodulated at the indicated uplink resource positions of the first type data and the second type data, and corresponding operation is executed according to the receiving and demodulating results of the data, so that the receiving and processing of the second type data cannot be abandoned due to the overlapping of the uplink resources of the two types of data, the waste of the uplink resources is avoided, and the performance of a communication system is greatly improved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a data receiving and processing method, a data receiving and processing system, a base station, a data sending method, a data sending system, and a terminal.
Background
In the 5G communication technology, URLLC (Ultra-reliable and Low Latency Communications) data has extremely high burstiness, and the requirement for Latency is high, and a solution proposed at present for downlink transmission of URLLC data is: when the URLLC data arrives, the 5G base station immediately schedules the URLLC data, that is, performs puncturing transmission in an enhanced Mobile BroadBand (eMBB) data block in which resource configuration is completed, so as to realize the fastest data transmission, and further meet the requirement of the URLLC data on time delay. However, in UpLink transmission, when there is resource contention when multiple UEs send data to a base station, an existing UpLink URLLC scheme includes a GB (scheduling-based) data transmission mode, in the GB mode, a URLLC terminal needs to send an SR (Schedule Request) to a base station end before transmitting data, after receiving the SR, the base station feeds back UL Grant (UpLink Grant) information for indicating UpLink transmission to the terminal, and after correctly receiving and demodulating the UL Grant, the terminal sends URLLC data at an UpLink time-frequency position allocated by the base station.
In the prior art, when a terminal supports URLLC service and eMBB service simultaneously, an interference problem in the terminal may occur, as shown in fig. 1, the terminal first sends an eMBB SR, and sends uplink eMBB data at a specified position after receiving uplink grant fed back by a base station, but before a subframe sending the eMBB, the terminal has URLLC data to be sent to the base station, and then the terminal sends an URLLC SR again, and in order to meet a low delay requirement of the URLLC, the base station immediately feeds back a URLLC UL-grant, and at this time, uplink resources of the URLLC and the eMBB configured for the terminal by the base station may be overlapped, in this case, the terminal needs to send the URLLC first and give up or delay transmission of the eMBB data at the same time, which is an uplink self-interference problem of the URLLC. In the above self-interference problem, if the terminal sends the SR of the eMBB first and then sends the SR of the URLLC, the base station feeds back the two SRs, and the indicated URLLC data sending position overlaps with part or all of the eMBB data, but the URLLC uplink grant sent by the base station to the terminal is not correctly received by the terminal, the terminal will not send the URLLC data at the position specified by the base station and will send the eMBB data according to the previous eMBB uplink grant, but the base station will consider that the URLLC uplink grant has been correctly received by the terminal and will receive the URLLC data at the specified URLLC position, and at this time, the base station cannot correctly demodulate the URLLC data and the eMBB data (the URLLC data is not sent, and the base station considers that the emblc data is interfered by the URLLC puncturing and will not receive the eMBB), which wastes uplink resources greatly.
Therefore, a technical solution is needed to improve and optimize the data receiving and processing method of the base station under the above circumstances, so as to avoid the waste of uplink resources as much as possible and improve the performance of the communication system.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention proposes a data reception processing method.
A second aspect of the present invention provides a data reception processing system.
A third aspect of the present invention provides a base station.
A fourth aspect of the present invention provides a data transmission method.
A fifth aspect of the present invention proposes a data transmission system.
A sixth aspect of the present invention provides a terminal.
In view of this, a first aspect of the present invention provides a data receiving and processing method, which is used for a base station, and the data receiving and processing method includes: sending a first uplink authorization and a second uplink authorization to a target terminal; receiving and demodulating first type data sent by a target terminal according to a first uplink authorization and second type data sent by a second uplink authorization; and executing preset operation according to the receiving result or the demodulation result of the first class data and the second class data.
In the technical scheme, after a base station receives SRs for a first type of data service and a second type of data service of a target terminal which simultaneously supports the first type of data service and the second type of data service, a first uplink authorization and a second uplink authorization are sent to the target terminal, so that the target terminal sends the first type of data and the second type of data to the base station on corresponding sending resources according to the first uplink authorization and the second uplink authorization, the base station receives and demodulates the first type of data and the second type of data sent by the target terminal, and executes corresponding preset operations according to receiving results or demodulation results of the first type of data and the second type of data, wherein the preset operations comprise retransmitting uplink scheduling, retransmitting uplink authorization and sending negative acknowledgement to the target terminal. After the base station sends the eMBB uplink authorization and the URLLC uplink authorization to the same terminal, the base station tries to receive and demodulate the first type of data and the second type of data at the indicated uplink resource positions of the two types of data after receiving various data sent by the target terminal according to the UL-grant, and executes corresponding operation according to the receiving and demodulating results of the data, so that the situation that the base station considers that the second type of data is punched and interfered by the first type of data and directly selects to abandon the processing of the second type of data when the base station does not receive or can not correctly demodulate the first type of data is avoided, the waste of uplink resources is avoided, and the performance of a communication system is greatly improved.
Specifically, after the base station issues UL-grant aiming at URLLC data and eMBB data to the terminal, the corresponding URLLC data and eMBB data are received and demodulated at the corresponding resource positions, and when the URLLC data are received unsuccessfully or successfully but demodulated, the UL-grant of the URLLC data are immediately sent to the target terminal again so that the target terminal retransmits the URLLC data, and the low delay characteristic of the URLLC data is further ensured; and when the URLLC data is successfully received and demodulated, but the eMBB data is unsuccessfully received or successfully received but demodulated, because the eMBB data has a lower delay requirement than the URLLC data, the base station feeds back notification information of data reception failure or demodulation failure to the terminal, and informs the terminal to wait for subsequent retransmission permission. By selecting and executing different preset operations according to the receiving and demodulating results of different data types, the waste of uplink resources is effectively reduced, and the performance of the communication system is improved.
In addition, the data receiving and processing method in the above technical solution provided by the present invention may further have the following additional technical features:
in the foregoing technical solution, preferably, the step of executing a preset operation according to a reception result or a demodulation result of the first type data and the second type data specifically includes: when the second type data is successfully demodulated and the first type data is failed to be received or demodulated, the first uplink grant is sent again in the current TTI (Transmission Time Interval) or the next TTI so that the target terminal sends the first type data again.
In the technical scheme, when the second type of data is successfully demodulated, it is indicated that the second type of data is not interfered by other data for transmission, and the first type of data fails to be received or received successfully but demodulated, it is indicated that the first type of data is not successfully transmitted by the target terminal, or a transmission error occurs in the transmission process, so that in order to ensure the low delay requirement of the first type of data, the base station immediately retransmits the first uplink grant in the current TTI or the next TTI, that is, retransmits the uplink scheduling, so that the target terminal immediately retransmits the first type of data, and the low delay characteristic of the first type of resources is ensured.
In any of the above technical solutions, preferably, the step of executing a preset operation according to a reception result or a demodulation result of the first type data and the second type data specifically includes: and when the first type of data is successfully demodulated and the second type of data is unsuccessfully received or demodulated, feeding back a negative response corresponding to the second type of data to the target terminal.
In the technical scheme, when the first-class data is successfully demodulated, but the second-class data is unsuccessfully received or demodulated, it is indicated that the first-class data with low time delay is correctly received, but the second-class data may be unsuccessfully received or demodulated due to interference of other data, and because the second-class data has low time delay requirement, the base station feeds back a negative response corresponding to the second-class data to the target terminal, informs the target terminal that the second-class data is unsuccessfully received, and informs the target terminal to wait for subsequent retransmission permission, thereby avoiding waste of uplink resources.
In any of the above technical solutions, preferably, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In the technical scheme, the first type of data is URLLC data, and the URLLC data has higher requirements on time delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
A second aspect of the present invention provides a data reception processing system for a base station, including: a transmitting unit, a receiving demodulation unit and a control unit; the sending unit is used for sending a first uplink authorization and a second uplink authorization to the target terminal; the receiving and demodulating unit is used for receiving and demodulating first type data sent by a target terminal according to a first uplink authorization and second type data sent by a second uplink authorization; the control unit is used for executing preset operation according to the receiving result or the demodulation result of the first class data and the second class data.
In the technical scheme, after a base station receives SRs for a first type of data service and a second type of data service of a target terminal which simultaneously supports the first type of data service and the second type of data service, a first uplink authorization and a second uplink authorization are sent to the target terminal, so that the target terminal sends the first type of data and the second type of data to the base station on corresponding sending resources according to the first uplink authorization and the second uplink authorization, the base station receives and demodulates the first type of data and the second type of data sent by the target terminal, and executes corresponding preset operations according to receiving results or demodulation results of the first type of data and the second type of data, wherein the preset operations comprise retransmitting uplink scheduling, retransmitting uplink authorization and sending negative acknowledgement to the target terminal. After the base station sends the eMBB uplink authorization and the URLLC uplink authorization to the same terminal, the base station tries to receive and demodulate the first type of data and the second type of data at the indicated uplink resource positions of the two types of data after receiving various data sent by the target terminal according to the UL-grant, and executes corresponding operation according to the receiving and demodulating results of the data, so that the situation that the base station considers that the second type of data is punched and interfered by the first type of data and directly selects to abandon the processing of the second type of data when the base station does not receive or can not correctly demodulate the first type of data is avoided, the waste of uplink resources is avoided, and the performance of a communication system is greatly improved.
In the above technical solution, preferably, the control unit is further configured to: and when the second type of data is successfully demodulated and the first type of data is failed to be received or demodulated, the first uplink authorization is sent again in the current TTI or the next TTI so that the target terminal can send the first type of data again.
In the technical scheme, when the second type of data is successfully demodulated, it is indicated that the second type of data is not interfered by other data for transmission, and the first type of data fails to be received or received successfully but demodulated, it is indicated that the first type of data is not successfully transmitted by the target terminal, or a transmission error occurs in the transmission process, so that in order to ensure the low delay requirement of the first type of data, the base station immediately retransmits the first uplink grant in the current TTI or the next TTI, that is, retransmits the uplink scheduling, so that the target terminal immediately retransmits the first type of data, and the low delay characteristic of the first type of resources is ensured.
In any of the above technical solutions, preferably, the control unit is further configured to: and when the first type of data is successfully demodulated and the second type of data is unsuccessfully received or demodulated, feeding back a negative response corresponding to the second type of data to the target terminal.
In the technical scheme, when the first-class data is successfully demodulated, but the second-class data is unsuccessfully received or demodulated, it is indicated that the first-class data with low time delay is correctly received, but the second-class data may be unsuccessfully received or demodulated due to interference of other data, and because the second-class data has low time delay requirement, the base station feeds back a negative response corresponding to the second-class data to the target terminal, informs the target terminal that the second-class data is unsuccessfully received, and informs the target terminal to wait for subsequent retransmission permission, thereby avoiding waste of uplink resources.
In any of the above technical solutions, preferably, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In the technical scheme, the first type of data is URLLC data, and the URLLC data has higher requirements on time delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
A third aspect of the present invention provides a base station, which includes the data receiving and processing system according to any one of the above technical solutions, and therefore, the base station includes all the advantages of the data receiving and processing system according to any one of the above technical solutions.
A fourth aspect of the present invention provides a data transmission method, used for a terminal, including: receiving a first uplink grant and a second uplink grant from a base station; according to the first uplink authorization, first type data is sent to the base station through a first sending resource; according to the second uplink authorization, sending second type data to the base station through a second sending resource; when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the overlapped part of the transmission resources is used for transmitting the first type of data.
In the technical scheme, the terminal with the functions of the first type of data and the second type of data receives a first uplink authorization and a second uplink authorization from the base station, and respectively transmits the first type of data to the base station through a first transmission resource and transmits the second type of data to the base station through a second transmission resource according to the first uplink authorization and the second uplink authorization, so that the functions of transmitting the two types of data are realized. Meanwhile, when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the first type of data is preferentially transmitted by the transmission resource at the overlapped part because the first type of resource has higher requirements on transmission reliability and low time delay, so that the characteristics of high reliability and low time delay of the first type of data are ensured.
In the foregoing technical solution, preferably, the data transmission method further includes: when receiving a negative response corresponding to the second type of data, sending the second type of data to the base station again; or when receiving a negative response corresponding to the second type of data, acquiring retransmission uplink authorization of the second type of data; and according to the retransmission uplink authorization, the second type data is sent to the base station again.
In the technical scheme, when a negative response corresponding to the second type of data is received, the second type of data is not successfully transmitted, and the second type of data is transmitted to the base station again at the moment so as to ensure the success of the transmission of the second type of data; or when receiving the negative response corresponding to the second type of data, obtaining the retransmission uplink authorization of the second type of data from the base station, and after the base station issues the corresponding retransmission uplink authorization, sending the second type of data to the base station again according to the uplink resource indicated by the retransmission uplink authorization.
In the above technical solution, preferably, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In the technical scheme, the first type of data is URLLC data, and the URLLC data has higher requirements on time delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
A fifth aspect of the present invention provides a data transmission system for a terminal, the data transmission system comprising: the device comprises a receiving module and a sending module; the receiving module is used for receiving a first uplink authorization and a second uplink authorization from a base station; the sending module is used for sending first type data to the base station through a first sending resource according to the first uplink authorization; and transmitting the second type data to the base station through a second transmission resource according to the second uplink authorization; when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the overlapped part of the transmission resources is used for transmitting the first type of data.
In the technical scheme, the terminal with the functions of the first type of data and the second type of data receives a first uplink authorization and a second uplink authorization from the base station, and respectively transmits the first type of data to the base station through a first transmission resource and transmits the second type of data to the base station through a second transmission resource according to the first uplink authorization and the second uplink authorization, so that the functions of transmitting the two types of data are realized. Meanwhile, when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the first type of data is preferentially transmitted by the transmission resource at the overlapped part because the first type of resource has higher requirements on transmission reliability and low time delay, so that the characteristics of high reliability and low time delay of the first type of data are ensured.
In the foregoing technical solution, preferably, the sending module is further configured to: when receiving a negative response corresponding to the second type of data, sending the second type of data to the base station again; or when receiving a negative response corresponding to the second type of data, acquiring retransmission uplink authorization of the second type of data; and according to the retransmission uplink authorization, the second type data is sent to the base station again.
In the technical scheme, when a negative response corresponding to the second type of data is received, the second type of data is not successfully transmitted, and the second type of data is transmitted to the base station again at the moment so as to ensure the success of the transmission of the second type of data; or when receiving the negative response corresponding to the second type of data, obtaining the retransmission uplink authorization of the second type of data from the base station, and after the base station issues the corresponding retransmission uplink authorization, sending the second type of data to the base station again according to the uplink resource indicated by the retransmission uplink authorization.
In any of the above technical solutions, preferably, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In the technical scheme, the first type of data is URLLC data, and the URLLC data has higher requirements on time delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
A sixth aspect of the present invention provides a terminal including the data transmission system according to any one of the above technical solutions, and therefore, the terminal includes all the advantages of the data transmission system according to any one of the above technical solutions.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 illustrates a schematic diagram of a URLLC uplink self-interference problem in the prior art;
FIG. 2 shows a flow diagram of a data reception processing method according to one embodiment of the invention;
fig. 3 shows a flow chart of a data reception processing method according to another embodiment of the present invention;
fig. 4 shows a flow chart of a data reception processing method according to yet another embodiment of the present invention;
fig. 5 shows a schematic TTI diagram in a data reception processing method according to an embodiment of the present invention;
FIG. 6 shows a block diagram of a data reception processing system according to one embodiment of the invention;
FIG. 7 shows a flow diagram of a data transmission method according to an embodiment of the invention;
fig. 8 is a diagram illustrating transmission resources of an overlapping portion in a data transmission method according to an embodiment of the present invention;
fig. 9 shows a block diagram of a data transmission system according to another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A data reception processing method, a data reception processing system, a base station, a data transmission method, a data transmission system, and a terminal according to some embodiments of the present invention are described below with reference to fig. 2 to 9.
As shown in fig. 2, in an embodiment of the first aspect of the present invention, there is provided a data receiving and processing method, used in a base station, where the data receiving and processing method includes:
s202, sending a first uplink authorization and a second uplink authorization to a target terminal;
s204, receiving and demodulating first type data sent by a target terminal according to a first uplink authorization and second type data sent by a target terminal according to a second uplink authorization;
and S206, executing preset operation according to the receiving result or the demodulation result of the first class data and the second class data.
In this embodiment, after a base station receives SRs of a target terminal supporting a first type of data service and a second type of data service respectively for the first type of data service and the second type of data service, a first uplink grant and a second uplink grant are sent to the target terminal, so that the target terminal sends the first type of data and the second type of data to the base station on corresponding sending resources according to the first uplink grant and the second uplink grant, the base station receives and demodulates the first type of data and the second type of data sent by the target terminal, and executes corresponding preset operations according to receiving results or demodulation results of the first type of data and the second type of data, where the preset operations include retransmitting uplink scheduling, retransmitting uplink grant, and sending negative acknowledgement to the target terminal. After the base station sends the eMBB uplink authorization and the URLLC uplink authorization to the same terminal, the base station tries to receive and demodulate the first type of data and the second type of data at the indicated uplink resource positions of the two types of data after receiving various data sent by the target terminal according to the UL-grant, and executes corresponding operation according to the receiving and demodulating results of the data, so that the situation that the base station considers that the second type of data is punched and interfered by the first type of data and directly selects to abandon the processing of the second type of data when the base station does not receive or can not correctly demodulate the first type of data is avoided, the waste of uplink resources is avoided, and the performance of a communication system is greatly improved.
Specifically, after the base station issues UL-grant aiming at URLLC data and eMBB data to the terminal, the corresponding URLLC data and eMBB data are received and demodulated at the corresponding resource positions, and when the URLLC data are received unsuccessfully or successfully but demodulated, the UL-grant of the URLLC data are immediately sent to the target terminal again so that the target terminal retransmits the URLLC data, and the low delay characteristic of the URLLC data is further ensured; and when the URLLC data is successfully received and demodulated, but the eMBB data is unsuccessfully received or successfully received but demodulated, because the eMBB data has a lower delay requirement than the URLLC data, the base station feeds back notification information of data reception failure or demodulation failure to the terminal, and informs the terminal to wait for subsequent retransmission permission. By selecting and executing different preset operations according to the receiving and demodulating results of different data types, the waste of uplink resources is effectively reduced, and the performance of the communication system is improved.
In an embodiment of the present invention, preferably, as shown in fig. 3, the data receiving processing method includes:
s302, sending a first uplink authorization and a second uplink authorization to a target terminal;
s304, receiving and demodulating first type data sent by a target terminal according to a first uplink authorization and second type data sent by a second uplink authorization;
s306, when the second type data is successfully demodulated and the first type data is failed to be received or demodulated, the first uplink grant is sent again in the current TTI or the next TTI so that the target terminal can send the first type data again.
In this embodiment, when the second type of data is successfully demodulated, it indicates that the second type of data is not interfered by other data for transmission, and the first type of data fails to be received or received successfully but demodulated successfully, it indicates that the first type of data is not successfully transmitted by the target terminal, or a transmission error occurs during the transmission process, so that to ensure the low latency requirement of the first type of data, the base station immediately retransmits the first uplink grant in the current TTI or the next TTI, that is, retransmits the uplink scheduling, so that the target terminal immediately retransmits the first type of data, and the low latency characteristic of the first type of resource is ensured.
In an embodiment of the present invention, preferably, as shown in fig. 4, the data receiving processing method includes:
s402, sending a first uplink authorization and a second uplink authorization to a target terminal;
s404, receiving and demodulating first type data sent by a target terminal according to a first uplink authorization and second type data sent by a second uplink authorization;
s406, when the first type data is successfully demodulated and the second type data is unsuccessfully received or demodulated, a negative response corresponding to the second type data is fed back to the target terminal.
In this embodiment, when the first type of data is successfully demodulated, but the second type of data is unsuccessfully received or demodulated, it is indicated that the first type of data with low delay has been correctly received, but the second type of data may be interfered by other data to cause reception failure or demodulation failure, and because the second type of data has a low delay requirement, the base station feeds back a negative response corresponding to the second type of data to the target terminal, informs the target terminal that the second type of data is unsuccessfully received, and informs the target terminal to wait for a subsequent retransmission grant, thereby avoiding waste of uplink resources.
In an embodiment of the present invention, preferably, as shown in fig. 5, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In this embodiment, the first type of data is URLLC data, which has high requirements on delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
As shown in fig. 6, in an embodiment of the second aspect of the present invention, there is provided a data receiving and processing system 600 for a base station, including: a transmitting unit 602, a reception demodulating unit 604, and a control unit 606; the sending unit 602 is configured to send a first uplink grant and a second uplink grant to a target terminal; the receiving and demodulating unit 604 is configured to receive and demodulate first type data sent by a target terminal according to a first uplink grant and second type data sent by a second uplink grant; the control unit 606 is configured to perform a preset operation according to the reception result or the demodulation result of the first type data and the second type data.
In this embodiment, after a base station receives SRs of a target terminal supporting a first type of data service and a second type of data service respectively for the first type of data service and the second type of data service, a first uplink grant and a second uplink grant are sent to the target terminal, so that the target terminal sends the first type of data and the second type of data to the base station on corresponding sending resources according to the first uplink grant and the second uplink grant, the base station receives and demodulates the first type of data and the second type of data sent by the target terminal, and executes corresponding preset operations according to receiving results or demodulation results of the first type of data and the second type of data, where the preset operations include retransmitting uplink scheduling, retransmitting uplink grant, and sending negative acknowledgement to the target terminal. After the base station sends the eMBB uplink authorization and the URLLC uplink authorization to the same terminal, the base station tries to receive and demodulate the first type of data and the second type of data at the indicated uplink resource positions of the two types of data after receiving various data sent by the target terminal according to the UL-grant, and executes corresponding operation according to the receiving and demodulating results of the data, so that the situation that the base station considers that the second type of data is punched and interfered by the first type of data and directly selects to abandon the processing of the second type of data when the base station does not receive or can not correctly demodulate the first type of data is avoided, the waste of uplink resources is avoided, and the performance of a communication system is greatly improved.
In an embodiment of the present invention, preferably, as shown in fig. 6, the control unit 606 is further configured to: and when the second type of data is successfully demodulated and the first type of data is failed to be received or demodulated, the first uplink authorization is sent again in the current TTI or the next TTI so that the target terminal can send the first type of data again.
In this embodiment, when the second type of data is successfully demodulated, it indicates that the second type of data is not interfered by other data for transmission, and the first type of data fails to be received or received successfully but demodulated successfully, it indicates that the first type of data is not successfully transmitted by the target terminal, or a transmission error occurs during the transmission process, so that to ensure the low latency requirement of the first type of data, the base station immediately retransmits the first uplink grant in the current TTI or the next TTI, that is, retransmits the uplink scheduling, so that the target terminal immediately retransmits the first type of data, and the low latency characteristic of the first type of resource is ensured.
In an embodiment of the present invention, preferably, as shown in fig. 6, the control unit 606 is further configured to: and when the first type of data is successfully demodulated and the second type of data is unsuccessfully received or demodulated, feeding back a negative response corresponding to the second type of data to the target terminal.
In this embodiment, when the first type of data is successfully demodulated, but the second type of data is unsuccessfully received or demodulated, it is indicated that the first type of data with low delay has been correctly received, but the second type of data may be interfered by other data to cause reception failure or demodulation failure, and because the second type of data has a low delay requirement, the base station feeds back a negative response corresponding to the second type of data to the target terminal, informs the target terminal that the second type of data is unsuccessfully received, and informs the target terminal to wait for a subsequent retransmission grant, thereby avoiding waste of uplink resources.
In an embodiment of the present invention, preferably, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In this embodiment, the first type of data is URLLC data, which has high requirements on delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
In an embodiment of the third aspect of the present invention, there is provided a base station including the data receiving and processing system as described in any one of the above embodiments, so that the base station includes all the advantages of the data receiving and processing system as described in any one of the above embodiments.
As shown in fig. 7 and 8, in an embodiment of the third aspect of the present invention, there is provided a data transmission method for a terminal, where the data transmission method includes:
s702, receiving a first uplink grant and a second uplink grant from a base station;
s704, according to the first uplink authorization, first type data is sent to the base station through the first sending resource;
s706, according to the second uplink authorization, sending the second type data to the base station through the second sending resource;
when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the overlapped part of the transmission resources is used for transmitting the first type of data.
In this embodiment, the terminal having the functions of the first type of data and the second type of data simultaneously receives the first uplink grant and the second uplink grant from the base station, and sends the first type of data to the base station through the first sending resource and sends the second type of data to the base station through the second sending resource according to the first uplink grant and the second uplink grant, respectively, so as to implement the sending functions of the two types of data. Meanwhile, when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the first type of data is preferentially transmitted by the transmission resource at the overlapped part because the first type of resource has higher requirements on transmission reliability and low time delay, so that the characteristics of high reliability and low time delay of the first type of data are ensured.
In one embodiment of the present invention, preferably, when a negative acknowledgement corresponding to the second type of data is received, the second type of data is transmitted again to the base station; or when receiving a negative response corresponding to the second type of data, acquiring retransmission uplink authorization of the second type of data; and according to the retransmission uplink authorization, the second type data is sent to the base station again.
In this embodiment, when a negative acknowledgement corresponding to the second type of data is received, which indicates that the second type of data is not successfully transmitted, the second type of data is transmitted to the base station again at this time, so as to ensure the success of the transmission of the second type of data; or when receiving the negative response corresponding to the second type of data, obtaining the retransmission uplink authorization of the second type of data from the base station, and after the base station issues the corresponding retransmission uplink authorization, sending the second type of data to the base station again according to the uplink resource indicated by the retransmission uplink authorization.
In an embodiment of the present invention, preferably, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In this embodiment, the first type of data is URLLC data, which has high requirements on delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
As shown in fig. 9, in an embodiment of the fifth aspect of the present invention, there is provided a data transmission system 900 for a terminal, the data transmission system including: a receiving module 902 and a transmitting module 904; the receiving module 902 is configured to receive a first uplink grant and a second uplink grant from a base station; the sending module 904 is configured to send the first type of data to the base station through the first sending resource according to the first uplink grant; and transmitting the second type data to the base station through a second transmission resource according to the second uplink authorization; when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the overlapped part of the transmission resources is used for transmitting the first type of data.
In this embodiment, the terminal having the functions of the first type of data and the second type of data simultaneously receives the first uplink grant and the second uplink grant from the base station, and sends the first type of data to the base station through the first sending resource and sends the second type of data to the base station through the second sending resource according to the first uplink grant and the second uplink grant, respectively, so as to implement the sending functions of the two types of data. Meanwhile, when the first transmission resource and the second transmission resource are at least partially overlapped with each other, the first type of data is preferentially transmitted by the transmission resource at the overlapped part because the first type of resource has higher requirements on transmission reliability and low time delay, so that the characteristics of high reliability and low time delay of the first type of data are ensured.
In an embodiment of the present invention, preferably, as shown in fig. 9, the sending module 904 is further configured to: when receiving a negative response corresponding to the second type of data, sending the second type of data to the base station again; or when receiving a negative response corresponding to the second type of data, acquiring retransmission uplink authorization of the second type of data; and according to the retransmission uplink authorization, the second type data is sent to the base station again.
In this embodiment, when a negative acknowledgement corresponding to the second type of data is received, which indicates that the second type of data is not successfully transmitted, the second type of data is transmitted to the base station again at this time, so as to ensure the success of the transmission of the second type of data; or when receiving the negative response corresponding to the second type of data, obtaining the retransmission uplink authorization of the second type of data from the base station, and after the base station issues the corresponding retransmission uplink authorization, sending the second type of data to the base station again according to the uplink resource indicated by the retransmission uplink authorization.
In an embodiment of the present invention, preferably, the first type of data is URLLC data, and the second type of data is eMBB data; and the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
In this embodiment, the first type of data is URLLC data, which has high requirements on delay and reliability; the second type of data is eMBB data, the type of data is relatively insensitive to time delay, so that transmission of URLLC data is guaranteed preferentially in communication to guarantee the characteristics of high reliability and low time delay of the URLLC data, meanwhile, the transmission TTI of the URLLC data is located in the transmission TTI of the eMBB, the utilization efficiency of transmission resources is improved, and communication time delay is further reduced.
In an embodiment of the sixth aspect of the present invention, there is provided a terminal comprising the data transmission system as described in any of the above embodiments, and therefore, the terminal comprises all the advantages of the data transmission system as described in any of the above embodiments.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A data receiving and processing method, used in a base station, the data receiving and processing method comprising:
sending a first uplink authorization and a second uplink authorization to a target terminal;
receiving and demodulating first type data sent by the target terminal according to the first uplink authorization and second type data sent by the target terminal according to the second uplink authorization;
and executing preset operation according to the receiving result or the demodulation result of the first class data and the second class data.
2. The data receiving and processing method according to claim 1, wherein the step of executing a preset operation according to the receiving result or the demodulation result of the first type of data and the second type of data specifically includes:
and when the second type of data is successfully demodulated and the first type of data is failed to be received or demodulated, the first uplink grant is sent again in the current TTI or the next TTI so that the target terminal can send the first type of data again.
3. The data receiving and processing method according to claim 1, wherein the step of executing a preset operation according to the receiving result or the demodulation result of the first type of data and the second type of data specifically includes:
and when the first type of data is successfully demodulated and the second type of data is unsuccessfully received or demodulated, feeding back a negative response corresponding to the second type of data to the target terminal.
4. The data reception processing method according to any one of claims 1 to 3, wherein the first type of data is URLLC data, and the second type of data is eMBB data; and
the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
5. A data reception processing system for a base station, comprising:
a sending unit, configured to send a first uplink grant and a second uplink grant to a target terminal;
a receiving demodulation unit, configured to receive and demodulate first type data sent by the target terminal according to the first uplink grant and second type data sent according to the second uplink grant;
and the control unit is used for executing preset operation according to the receiving result or the demodulation result of the first type of data and the second type of data.
6. The data reception processing system according to claim 5, wherein the control unit is further configured to:
and when the second type of data is successfully demodulated and the first type of data is failed to be received or demodulated, the first uplink grant is sent again in the current TTI or the next TTI so that the target terminal can send the first type of data again.
7. The data reception processing system according to claim 5, wherein the control unit is further configured to:
and when the first type of data is successfully demodulated and the second type of data is unsuccessfully received or demodulated, feeding back a negative response corresponding to the second type of data to the target terminal.
8. The data reception processing system according to any one of claims 5 to 7, wherein the first type of data is URLLC data, and the second type of data is eMBB data; and
the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
9. A base station, characterized in that it comprises a data reception processing system according to any one of claims 5 to 8.
10. A data transmission method for a terminal, the data transmission method comprising:
receiving a first uplink grant and a second uplink grant from a base station;
according to the first uplink authorization, first type data is sent to the base station through a first sending resource;
according to the second uplink authorization, second type data is sent to the base station through a second sending resource;
when the first transmission resource and the second transmission resource at least partially overlap with each other, the overlapping transmission resource is used for transmitting the first type of data.
11. The data transmission method according to claim 10, further comprising:
transmitting the second type data to the base station again when receiving a negative acknowledgement corresponding to the second type data; or
When a negative response corresponding to the second type of data is received, acquiring retransmission uplink authorization of the second type of data; and according to the retransmission uplink authorization, the second-class data is sent to the base station again.
12. The data transmission method according to claim 10 or 11, wherein the first type of data is URLLC data, and the second type of data is eMBB data; and
the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
13. A data transmission system for a terminal, the data transmission system comprising:
a receiving module, configured to receive a first uplink grant and a second uplink grant from a base station;
a sending module, configured to send first type data to the base station through a first sending resource according to the first uplink grant; and
according to the second uplink authorization, second type data is sent to the base station through a second sending resource;
when the first transmission resource and the second transmission resource at least partially overlap with each other, the overlapping transmission resource is used for transmitting the first type of data.
14. The data transmission system of claim 13, wherein the transmission module is further configured to:
when a negative response corresponding to the second type of data is received, the second type of data is sent to the base station again; or
When a negative response corresponding to the second type of data is received, acquiring retransmission uplink authorization of the second type of data;
and according to the retransmission uplink authorization, the second-class data is sent to the base station again.
15. The data transmission system according to claim 13 or 14, wherein the first type of data is URLLC data, and the second type of data is eMBB data; and
the transmission TTI for the first type of data is located in the transmission TTI for the second type of data.
16. A terminal, characterized in that it comprises a data transmission system according to any one of claims 13 to 15.
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