CN110831221A - Data processing method and device for base station - Google Patents
Data processing method and device for base station Download PDFInfo
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- CN110831221A CN110831221A CN201810924915.XA CN201810924915A CN110831221A CN 110831221 A CN110831221 A CN 110831221A CN 201810924915 A CN201810924915 A CN 201810924915A CN 110831221 A CN110831221 A CN 110831221A
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- 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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- 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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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
- H04L1/1607—Details of the supervisory signal
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
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Abstract
The embodiment of the invention provides a data processing method and a data processing device for a base station, wherein the base station is connected with UE (user equipment); the method comprises the following steps: the base station acquires a PUSCH scheduling message; generating first UE scheduling data according to the PUSCH scheduling message; sequencing the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information; the base station detects and decodes a PUSCH corresponding to the reordered UE information to obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data; the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data; and secondary reporting is realized, so that the single subframe processing capacity is improved, the uplink scheduling capacity of an LTE cell is improved, and the CPU utilization rate is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data processing method and a data processing apparatus for a base station.
Background
With the deep construction of an LTE (Long Term Evolution) network, hot cells connected to more than 600 User Equipments (UEs) in the existing network are increasing, and very high requirements are provided for the scheduling capability and the delay of a base station. The subframe ratio of an LTE TDD (Time Division duplex) cell is 3DL (downlink to terminal): 1UL (uplink to network), and the uplink single subframe scheduling capability is a key factor for determining the cell capacity.
A physical layer and a Media Access Control (MAC) layer are core service modules of an LTE base station, and the physical layer is mainly responsible for digital processing of wireless signals, including receiving, detecting, and decoding, to obtain ACK (Acknowledgement)/NACK (Negative Acknowledgement) information of uplink and downlink data transmission; the MAC layer is mainly responsible for scheduling uplink and downlink subframes of a cell, determining a list of users capable of performing data Transmission in each TTI (Transmission Time Interval), and selecting appropriate modulation and coding levels and resources for the users. The LTE network adopts a stop-and-wait HARQ (hybrid automatic Repeat Request) implementation manner of a process, and after a base station schedules data transmission once, the base station needs to wait for ACK/NACK information of the process to determine whether to send new data or retransmit original data.
The interaction of scheduling content and ACK/NACK information needs to be carried out between a physical layer and an MAC layer, each TTI in an LTE network is 1ms, the system is a strong real-time processing system, and the common method of information interaction is a message notification mode. The MAC layer needs to send the scheduling result to the physical layer before the air interface time point, which is convenient for the physical layer to perform parameter calculation, and meanwhile, the MAC needs to perform priority queue generation and resource allocation, and needs to start scheduling earlier than the air interface time, and after receiving data at the air interface time point, the physical layer generally needs more than 2ms of processing time to report the decoding result, so that both the physical layer and the MAC layer need to comply with a strict timing sequence, and a timed interrupt trigger process is usually used to ensure the decoding result.
At present, most equipment manufacturers use multi-core processors, the MAC layer and the physical layer are on different processors, and because strict time sequence relation is observed, the CPU utilization rate of each processor is difficult to be ensured to be sufficient. In order to meet the strict uplink and downlink timing relation limitation in an LTE network, a message notification mode triggered based on the timed interruption can stipulate a strict time point, wherein the strict time point comprises a scheduling message time point sent to a physical layer by an MAC layer and a decoding result time point reported to the MAC layer by the physical layer, and if the scheduling message is later than the stipulated time point, the physical layer can discard the frame; if the decoding result is reported later than the specified time point, the physical layer will process the decoding result of the user according to the error. Therefore, the MAC layer or the physical layer cannot fully utilize the software processing capability of the processor, so that the scheduling capability of the MAC layer and the processing capability of the physical layer are limited, and the increase of the cell capacity is affected.
Disclosure of Invention
Embodiments of the present invention provide a data processing method for a base station and a corresponding data processing apparatus for a base station, so as to solve the above-mentioned problem that if transmission time points of a scheduling message and a decoding result do not meet a specified time point, a physical layer may discard the frame or process the decoding result as an erroneous decoding result, so that a MAC layer or the physical layer cannot fully utilize software processing capability of a processor, and the scheduling capability of the MAC layer and the processing capability of the physical layer are limited.
In order to solve the above problem, an embodiment of the present invention discloses a data processing method for a base station, where the base station is connected to a user equipment UE; the method comprises the following steps:
the base station acquires a Physical Uplink Shared Channel (PUSCH) scheduling message;
the base station generates first UE scheduling data according to the PUSCH scheduling message;
the base station sequences the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information;
the base station detects and decodes a PUSCH corresponding to the reordered UE information to obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data;
the first decoding result data is the decoding result data when the base station receives the uplink Cyclic Redundancy Check (CRC) timing interruption and the decoding operation of the reordered UE information is not completely finished in the Transmission Time Interval (TTI);
the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished;
and the base station allocates Physical Downlink Control Channel (PDCCH) and Physical Uplink Shared Channel (PUSCH) resources for the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data.
Preferably, the first UE scheduling data includes a plurality of pieces of UE information to be scheduled; the base station sequences the first UE scheduling data, and the step of obtaining second UE scheduling data comprises:
the base station extracts UE information to be scheduled in the first UE scheduling data;
and the base station sorts the UE information to be scheduled according to a preset priority to obtain second UE scheduling data.
Preferably, the step of allocating, by the base station, PDCCH and PUSCH resources to the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data includes:
after the first decoding result data is obtained, the base station updates the hybrid automatic repeat request (HARQ) state of the UE according to the first decoding result data to generate a scheduling queue;
and the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
Preferably, the step of allocating, by the base station, PDCCH and PUSCH resources to the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data further includes:
after the second decoding result data is obtained, the base station judges whether the current time reaches the scheduling deadline of the sub-frame and whether the sub-frame has the remaining physical resource block PRB;
when the current time does not reach the subframe scheduling deadline and the subframe has residual PRBs, the base station updates the HARQ state of the UE according to the second decoding result data to generate a scheduling queue;
and the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
Preferably, the method further comprises the following steps:
when the current time does not reach the scheduling deadline of the subframe and the subframe has no remaining PRB;
or, when the current time reaches the current subframe scheduling deadline and the current subframe has no remaining PRBs;
or, when the current time reaches the scheduling deadline of the subframe and the subframe has remaining PRBs, the base station determines whether the second decoding result data contains retransmission information.
Preferably, the method further comprises the following steps:
when the second decoding result data contains retransmission information, the base station configures the retransmission operation at this time as a self-adaptive retransmission operation;
and when the second decoding result data does not contain retransmission information, the base station stops the scheduling operation of the sub-frame.
The embodiment of the invention discloses a data processing device of a base station, wherein the base station is connected with User Equipment (UE); the device comprises:
a PUSCH scheduling message acquisition module, configured to acquire, by the base station, a PUSCH scheduling message of a physical uplink shared channel;
a generating module, configured to generate, by the base station, first UE scheduling data according to the PUSCH scheduling message;
a second UE scheduling data obtaining module, configured to sequence, by the base station, the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information;
a decoding result data obtaining module, configured to detect and decode, by the base station, a PUSCH channel corresponding to the reordered UE information, and obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data; the first decoding result data is the decoding result data when the base station receives the uplink Cyclic Redundancy Check (CRC) timing interruption and the decoding operation of the reordered UE information is not completely finished in the Transmission Time Interval (TTI); the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished;
and the allocation module is used for allocating Physical Downlink Control Channel (PDCCH) and Physical Uplink Shared Channel (PUSCH) resources to the UE corresponding to the reordered UE information by the base station according to the first decoding result data and the second decoding result data.
Preferably, the first UE scheduling data includes a plurality of pieces of UE information to be scheduled; the second UE scheduling data obtaining module includes:
the extracting submodule is used for extracting the UE information to be scheduled in the first UE scheduling data by the base station;
and the sequencing submodule is used for sequencing the UE information to be scheduled by the base station according to the preset priority to obtain second UE scheduling data.
Preferably, the allocation module comprises:
a first scheduling queue generating submodule, configured to update, by the base station, a hybrid automatic repeat request HARQ state of the UE according to the first decoding result data after the first decoding result data is obtained, and generate a scheduling queue;
and the first allocating submodule is used for allocating PDCCH and PUSCH resources to the UE corresponding to the reordered UE information by the base station according to the sequence of the scheduling queue.
Preferably, the allocation module further comprises:
the judging submodule is used for judging whether the current time reaches the scheduling deadline of the subframe and whether the subframe has the residual Physical Resource Block (PRB) after the second decoding result data is obtained;
a second scheduling queue generating submodule, configured to update, by the base station, a hybrid automatic repeat request HARQ status of the UE according to the second decoding result data when the current time does not reach a scheduling deadline of the subframe and the subframe has remaining PRBs, and generate a scheduling queue;
and the second allocation submodule is used for allocating PDCCH and PUSCH resources to the UE corresponding to the reordered UE information by the base station according to the sequence of the scheduling queue.
Preferably, the method further comprises the following steps:
the retransmission information judging module is used for judging whether the current time does not reach the scheduling deadline of the sub-frame or not and whether the sub-frame has no remaining PRB or not; or, when the current time reaches the current subframe scheduling deadline and the current subframe has no remaining PRBs; or, when the current time reaches the scheduling deadline of the subframe and the subframe has remaining PRBs, the base station determines whether the second decoding result data contains retransmission information.
Preferably, the method further comprises the following steps:
a configuration module, configured to configure, when the second decoding result data includes retransmission information, the base station configures the retransmission operation of this time as an adaptive retransmission operation;
and the scheduling stopping module is used for stopping the scheduling operation of the sub-frame by the base station when the second decoding result data does not contain the retransmission information.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, the base station sequences the first UE scheduling data to obtain second UE scheduling data; the second UE scheduling data comprises a plurality of pieces of reordered UE information, the priorities of the plurality of pieces of data are preset in the base station, and the first UE scheduling data is sequenced according to the priorities, so that the most important downlink ACK/NACK information and the priority processing of the UE data needing to be retransmitted are ensured, the high-priority UE data is scheduled preferentially, and the problem that the UE data cannot be reported due to overtime processing is avoided;
in addition, the base station detects and decodes the PUSCH corresponding to the reordered UE information to obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data; the first decoding result data is the decoding result data when the base station receives the uplink CRC timing interruption and the decoding operation of the reordered UE information is not completely finished in the transmission time interval TTI; the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished; and the residual second decoding result data is not discarded, but is continuously processed and reported for the second time, so that the single subframe processing capacity is improved, the uplink scheduling capacity of the LTE cell is improved, and the CPU utilization rate is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
fig. 1 is a flowchart illustrating a first step of a data processing method of a base station according to a first embodiment of the present invention;
fig. 2 is a flowchart of steps of a second embodiment of a data processing method of a base station according to the present invention;
fig. 3 is a block diagram of an embodiment of a data processing apparatus of a base station according to the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the embodiments of the present invention more clearly apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
One of the core concepts of the embodiment of the invention is that a base station schedules UE according to a preset priority (the priority of UE data containing downlink ACK/NACK to UE data containing retransmission information to UE data containing initial transmission information), thereby ensuring the priority processing of downlink ACK/NACK information and retransmission users; and after the reporting time point is reached, the residual UE information is not discarded, but is continuously processed and reported, so that the function of secondary reporting is realized, and the single subframe processing capacity is improved.
Referring to fig. 1, a flowchart of a first step of a data processing method of a base station according to an embodiment of the present invention is shown, where the base station is connected to a UE; the method specifically comprises the following steps:
in the embodiment of the present invention, the types of the base stations may include a macro base station, a micro base station, a pico base station, a distributed base station, and the like, and the embodiments of the present invention do not specifically limit this, and the base stations may mainly include a baseband processing Unit (building base band Unit), a Radio Remote Unit (Radio Remote Unit), and an antenna feed system;
the baseband processing unit mainly completes the functions of channel coding and decoding, modulation and demodulation of baseband signals, protocol processing and the like, and simultaneously needs to provide an interface function with an upper network element.
The remote radio unit mainly performs D/a (Digital to Analog) conversion of Digital signals, a/D (Analog to Digital) conversion of Analog signals, Digital up/down conversion and radio frequency signal modulation and demodulation on Digital/Analog signals received from/transmitted to the baseband processing unit, then performs power amplification/low noise amplification on the radio frequency Analog signals to be transmitted/received, and finally transmits the radio frequency Analog signals to the antenna feed system through the filter element for transmission. The remote radio unit needs to provide interfaces with the baseband processing unit and the antenna feed system;
the antenna feed system mainly comprises a feeder line and an antenna, and aims to centralize wireless signals received to the remote radio unit and then radiate the wireless signals out, and also centralize signals sent by user equipment and transmit the signals to the remote radio unit for processing.
In this embodiment of the present invention, the PUSCH scheduling message may include a parameter set used for demodulation, such as a UE identifier, an RNTI (Radio Network Temporary Identity), a starting position of a PRB (Physical resource block), a PRB size, an UCI (Uplink Control Information), a modulation coding level, retransmission Information, ACK or NACK, initial transmission Information, and the like, which is not limited in this embodiment of the present invention.
further applied to the embodiment of the present invention, the base station may generate the first UE scheduling data according to the PUSCH scheduling message; specifically, the base station may extract the UE identifier in the PUSCH scheduling message, and generate the first UE scheduling data according to the UE identifier.
For example, the first UE scheduling data may include a UE scheduling list, and the UE scheduling list may be generated according to the UE identifier; namely, a mapping relationship between the UE identity and other parameters (e.g., UE identity, RNTI) is established.
103, the base station sequences the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information;
in practical application to the embodiment of the present invention, after obtaining the first UE scheduling data, the base station may sort the first UE scheduling data to obtain the second UE scheduling data.
Specifically, the base station may rank the first UE scheduling data according to retransmission information, ACK or NACK, and initial transmission information in the first UE scheduling data, to obtain second UE scheduling data.
It should be noted that the base station may include a preset priority, for example, the priority of the UE data carrying the downlink ACK/NACK information is greater than the priority of the UE data containing the retransmission information, and the priority of the UE data containing the retransmission information is greater than the priority of the UE data containing the initial transmission information; the priority may be any priority information set by those skilled in the art according to practical situations, and the embodiment of the present invention is not limited thereto.
The first UE scheduling data comprises a plurality of pieces of UE information to be scheduled, namely each piece of UE information to be scheduled comprises a UE identification and a mapping relation of other corresponding parameters (such as the UE identification, RNTI, retransmission information, ACK or NACK and initial transmission information); the base station may rank the plurality of pieces of UE information to be scheduled according to a preset priority level by traversing the first UE scheduling data, to obtain second UE scheduling data.
As per the priority preset above: and the priority of the UE data carrying the downlink ACK/NACK information is higher than that of the UE data containing the retransmission information and higher than that of the UE data containing the initial transmission information, and the UE scheduling data is sequenced for a plurality of pieces of UE information to be scheduled by traversing the first UE scheduling data according to the priority to obtain second UE scheduling data.
In the embodiment of the invention, the priority processing of the most important downlink ACK/NACK information and the UE data needing to be retransmitted is ensured, so that the high-priority UE data can be scheduled preferentially, and the problem that the UE data can not be reported due to overtime processing is avoided.
104, the base station detects and decodes the PUSCH corresponding to the reordered UE information to obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data; the first decoding result data is the decoding result data when the base station receives the uplink Cyclic Redundancy Check (CRC) timing interruption and the decoding operation of the reordered UE information is not completely finished in the Transmission Time Interval (TTI); the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished;
specifically, in the embodiment of the present invention, after the base station obtains the second UE scheduling data, where the second UE scheduling data includes a plurality of pieces of reordered UE information, the PUSCH channel position corresponding to the reordered UE information is identified, and the PUSCH channel is detected and decoded to obtain decoding result data.
It should be noted that, the base station may first perform detection operations such as channel estimation, channel equalization, demodulation, and descrambling on the PUSCH channel and perform decoding operations, and then obtain first decoding result data and second decoding result data.
The first decoding result data is the decoding result data when the base station receives the uplink Cyclic Redundancy Check (CRC) timing interruption and the decoding operation of the reordered UE information is not completely finished in the Transmission Time Interval (TTI); when the uplink CRC timer interrupt is received, whether the decoding operation of the plurality of pieces of reordered UE information in the TTI is completely finished is judged, if not, first decoding result data is obtained, and the first decoding result data packet is transmitted.
Further, when the decoding operation of the remaining reordered UE information is completed in the next TTI or more transmission time intervals, second decoding result data is obtained; that is, the second decoding result data is the decoding result data when the decoding operations of the remaining re-ordered UE information are all completed.
In the embodiment of the invention, after the reporting time point is reached, the remaining UE data is not discarded, but is continuously processed and reported for the second time, thereby improving the single subframe processing capacity.
And 105, the base station allocates a PDCCH (Physical Downlink control channel) and a PUSCH resource to the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data.
Specifically, in the embodiment of the present invention, the base station first allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the first decoding result data; specifically, the base station updates the HARQ status of the UE according to the first decoding result data, and generates a scheduling queue; and distributing PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
Further, after the second decoding result data is obtained, the base station judges whether the current time reaches the scheduling deadline of the sub-frame and whether the sub-frame has residual PRBs; when the current time does not reach the subframe scheduling deadline and the subframe has the remaining PRBs, the base station updates the HARQ state of the UE according to the second decoding result data to generate a scheduling queue; and distributing PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
In the embodiment of the invention, the base station acquires a PUSCH scheduling message; the base station generates first UE scheduling data according to the PUSCH scheduling message; the base station sequences the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information; the base station detects and decodes a PUSCH corresponding to the reordered UE information to obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data; the first decoding result data is the decoding result data when the base station receives the uplink CRC timing interruption and the decoding operation of the reordering UE information is not completely finished in the TTI; the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished; and the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data. In the embodiment of the invention, the priority processing of the most important downlink ACK/NACK information and the UE data needing to be retransmitted is ensured, so that the high-priority UE data can be scheduled preferentially, and the problem that the UE data can not be reported due to overtime processing is avoided; and after the reporting time point is reached, the remaining UE information is not discarded, but is continuously processed, and secondary reporting is realized, so that the single subframe processing capacity is improved, the uplink scheduling capacity of the LTE cell is improved, and the CPU utilization rate is improved.
Referring to fig. 2, a flowchart illustrating steps of a second embodiment of a data processing method of a base station according to the embodiment of the present invention is shown, which may specifically include the following steps:
in the embodiment of the invention, a base station can firstly acquire a PUSCH scheduling message; the PUSCH scheduling message includes parameter sets for demodulation, such as UE identity, RNTI, PRB starting position, PRB size, UCI, modulation coding level, retransmission information, ACK or NACK, and initial transmission information.
The UE identifier may include an IMSI (International mobile subscriber Identity), an IMEI (International mobile Equipment Identity), a GUTI (global Unique Temporary UE Identity), and the like, which is not limited in this embodiment of the present invention.
The RNTI is a radio network temporary identifier, which is an identifier of the UE in signal information between the UE and the base station.
The UCI refers to uplink control information; the UCI transmitted in the PUSCH may include ACK, NACK, CQI (Channel Quality Indicator), PMI (Precoding Matrix Indicator), RI (rank indication), etc. of HARQ (Hybrid Automatic Repeat Request).
further, the base station may generate first UE scheduling data according to the PUSCH scheduling message; specifically, the base station may extract the UE identifier in the PUSCH scheduling message, and generate the first UE scheduling data according to the UE identifier.
For example, the first UE scheduling data may include a UE scheduling list, and the UE scheduling list may be generated according to the UE identifier; namely, a mapping relationship between the UE identity and other parameters (e.g., UE identity, RNTI) is established.
specifically, the first UE scheduling data includes a plurality of pieces of information of UEs to be scheduled; the base station can extract the information of the UE to be scheduled; each piece of the to-be-scheduled UE information includes a mapping relationship between a UE identifier and corresponding other parameters (such as the UE identifier, RNTI, retransmission information, ACK or NACK, and initial transmission information).
in a preferred embodiment of the present invention, the base station may sort the UE information to be scheduled according to a priority level of UE data carrying downlink ACK/NACK information, which is higher than a priority level of UE data containing retransmission information, which is higher than a priority level of UE data containing initial transmission information, to obtain second UE scheduling data.
in practical application to the embodiment of the present invention, after the first decoding result data is obtained, the base station updates the HARQ status of the UE according to the first decoding result data, obtains retransmission information of the incorrectly decoded UE data, releases HARQ resources corresponding to the decoded UE data, and generates a scheduling queue according to a QOS (Quality of Service) requirement of the UE.
in the embodiment of the invention, the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
further applied to the embodiment of the present invention, after the base station obtains the second decoding result data, the base station determines whether the current time reaches the scheduling deadline of the current subframe, and determines whether the current subframe has remaining PRBs.
and the base station updates the HARQ state of the UE according to the second decoding result data, acquires retransmission information of the decoded UE data, releases HARQ resources corresponding to the decoded UE data, and generates a scheduling queue according to the QOS requirement of the UE.
In the embodiment of the invention, the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
In a preferred embodiment of the embodiments of the present invention, the method further includes: when the current time does not reach the scheduling deadline of the subframe and the subframe has no remaining PRB; or, when the current time reaches the current subframe scheduling deadline and the current subframe has no remaining PRBs; or, when the current time reaches the scheduling deadline of the subframe and the subframe has remaining PRBs, the base station determines whether the second decoding result data contains retransmission information.
Further applied to the embodiment of the invention, the method also comprises the following steps: when the second decoding result data contains retransmission information, the base station configures the retransmission operation at this time as a self-adaptive retransmission operation; and when the second decoding result data does not contain retransmission information, the base station stops the scheduling operation of the sub-frame.
Specifically, the base station performs secondary scheduling only when the current time does not reach the scheduling deadline of the subframe and the subframe has the remaining PRB; if the second decoding result data does not meet one of the above conditions, the base station may determine whether the second decoding result data includes retransmission information; if the second decoding result data contains retransmission information, the base station judges whether the uplink retransmission operation is non-adaptive retransmission; if so, the base station configures the retransmission operation for the time to be adaptive retransmission operation, because the base station does not issue a PDCCH indication to the UE when uplink transmission adopts non-adaptive retransmission, the UE performs retransmission detection according to a HARQ time sequence, if the base station can not perform scheduling due to time or resource problems, the base station needs to explicitly indicate the UE at the next scheduling, otherwise, the states of the base station and the UE are inconsistent, and the problem of error codes is caused; the base station configures the retransmission operation as the self-adaptive retransmission operation, waits for the next HARQ period, schedules the corresponding UE data,
when the second decoding result data does not contain retransmission information, the base station stops the scheduling operation of the sub-frame; that is, operations such as updating of the HARQ status of the UE, generation of a scheduling queue, and allocation of PDCCH and PUSCH resources are not performed.
In the embodiment of the invention, the base station acquires a PUSCH scheduling message; the base station generates first UE scheduling data according to the PUSCH scheduling message; the base station extracts UE information to be scheduled in the first UE scheduling data; the base station sorts the UE information to be scheduled according to a preset priority to obtain second UE scheduling data; after the first decoding result data is obtained, the base station updates the HARQ state of the UE according to the first decoding result data to generate a scheduling queue; the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue; after the second decoding result data is obtained, the base station judges whether the current time reaches the scheduling deadline of the sub-frame and whether the sub-frame has residual PRBs; when the current time does not reach the subframe scheduling deadline and the subframe has residual PRBs, the base station updates the HARQ state of the UE according to the second decoding result data to generate a scheduling queue; distributing PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue; the most important downlink ACK/NACK information and the priority processing of the UE data needing to be retransmitted are ensured, so that the high-priority UE data can be scheduled preferentially, and the problem that the UE data can not be reported due to overtime processing is avoided.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 3, a block diagram of an embodiment of a data processing apparatus of a base station according to the present invention is shown, where the base station is connected to a UE; the method specifically comprises the following modules:
a PUSCH scheduling message acquiring module 301, configured to acquire a PUSCH scheduling message by the base station;
a generating module 302, configured to generate, by the base station, first UE scheduling data according to the PUSCH scheduling message;
a second UE scheduling data obtaining module 303, configured to sequence, by the base station, the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information;
a decoding result data obtaining module 304, configured to detect and decode, by the base station, a PUSCH channel corresponding to the reordered UE information, and obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data; the first decoding result data is the decoding result data when the base station receives the uplink CRC timing interruption and the decoding operation of the reordered UE information is not completely finished in the transmission time interval TTI; the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished;
an allocating module 305, configured to allocate, by the base station, PDCCH and PUSCH resources to the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data.
Preferentially, the first UE scheduling data comprises a plurality of pieces of UE information to be scheduled; the second UE scheduling data obtaining module includes:
the extracting submodule is used for extracting the UE information to be scheduled in the first UE scheduling data by the base station;
and the sequencing submodule is used for sequencing the UE information to be scheduled by the base station according to the preset priority to obtain second UE scheduling data.
Preferably, the allocation module comprises:
a first scheduling queue generating submodule, configured to update, by the base station, an HARQ state of the UE according to the first decoding result data after the first decoding result data is obtained, and generate a scheduling queue;
and the first allocating submodule is used for allocating PDCCH and PUSCH resources to the UE corresponding to the reordered UE information by the base station according to the sequence of the scheduling queue.
Preferably, the allocation module further comprises:
the judging submodule is used for judging whether the current time reaches the scheduling deadline of the subframe and whether the subframe has the residual Physical Resource Block (PRB) after the second decoding result data is obtained;
a second scheduling queue generating submodule, configured to update, by the base station, the HARQ state of the UE according to the second decoding result data to generate a scheduling queue when the current time does not reach the subframe scheduling deadline and the subframe has remaining PRBs;
and the second allocation submodule is used for allocating PDCCH and PUSCH resources to the UE corresponding to the reordered UE information by the base station according to the sequence of the scheduling queue.
Preferably, the method further comprises the following steps:
the retransmission information judging module is used for judging whether the current time does not reach the scheduling deadline of the sub-frame or not and whether the sub-frame has no remaining PRB or not; or, when the current time reaches the current subframe scheduling deadline and the current subframe has no remaining PRBs; or, when the current time reaches the scheduling deadline of the subframe and the subframe has remaining PRBs, the base station determines whether the second decoding result data contains retransmission information.
Preferably, the method further comprises the following steps:
a configuration module, configured to configure, when the second decoding result data includes retransmission information, the base station configures the retransmission operation of this time as an adaptive retransmission operation;
and the scheduling stopping module is used for stopping the scheduling operation of the sub-frame by the base station when the second decoding result data does not contain the retransmission information.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The data processing method of a base station and the data processing apparatus of a base station provided by the present invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A data processing method of a base station is characterized in that the base station is connected with User Equipment (UE); the method comprises the following steps:
the base station acquires a Physical Uplink Shared Channel (PUSCH) scheduling message;
the base station generates first UE scheduling data according to the PUSCH scheduling message;
the base station sequences the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information;
the base station detects and decodes a PUSCH corresponding to the reordered UE information to obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data;
the first decoding result data is the decoding result data when the base station receives the uplink Cyclic Redundancy Check (CRC) timing interruption and the decoding operation of the reordered UE information is not completely finished in the Transmission Time Interval (TTI);
the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished;
and the base station allocates Physical Downlink Control Channel (PDCCH) and Physical Uplink Shared Channel (PUSCH) resources for the UE corresponding to the reordered UE information according to the first decoding result data and the second decoding result data.
2. The method of claim 1, wherein the first UE scheduling data comprises a plurality of UE information to be scheduled; the base station sequences the first UE scheduling data, and the step of obtaining second UE scheduling data comprises:
the base station extracts UE information to be scheduled in the first UE scheduling data;
and the base station sorts the UE information to be scheduled according to a preset priority to obtain second UE scheduling data.
3. The method according to claim 1 or 2, wherein the step of allocating, by the base station, PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the first and second decoding result data comprises:
after the first decoding result data is obtained, the base station updates the hybrid automatic repeat request (HARQ) state of the UE according to the first decoding result data to generate a scheduling queue;
and the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
4. The method according to claim 3, wherein the step of allocating PDCCH and PUSCH resources to the UE corresponding to the reordered UE information by the base station according to the first and second decoding result data further comprises:
after the second decoding result data is obtained, the base station judges whether the current time reaches the scheduling deadline of the sub-frame and whether the sub-frame has the remaining physical resource block PRB;
when the current time does not reach the subframe scheduling deadline and the subframe has residual PRBs, the base station updates the HARQ state of the UE according to the second decoding result data to generate a scheduling queue;
and the base station allocates PDCCH and PUSCH resources for the UE corresponding to the reordered UE information according to the sequence of the scheduling queue.
5. The method of claim 4, further comprising:
when the current time does not reach the scheduling deadline of the subframe and the subframe has no remaining PRB;
or, when the current time reaches the current subframe scheduling deadline and the current subframe has no remaining PRBs;
or, when the current time reaches the scheduling deadline of the subframe and the subframe has remaining PRBs, the base station determines whether the second decoding result data contains retransmission information.
6. The method of claim 1, 2, 4 or 5, further comprising:
when the second decoding result data contains retransmission information, the base station configures the retransmission operation at this time as a self-adaptive retransmission operation;
and when the second decoding result data does not contain retransmission information, the base station stops the scheduling operation of the sub-frame.
7. The data processing device of the base station is characterized in that the base station is connected with User Equipment (UE); the device comprises:
a PUSCH scheduling message acquisition module, configured to acquire, by the base station, a PUSCH scheduling message of a physical uplink shared channel;
a generating module, configured to generate, by the base station, first UE scheduling data according to the PUSCH scheduling message;
a second UE scheduling data obtaining module, configured to sequence, by the base station, the first UE scheduling data to obtain second UE scheduling data; wherein the second UE scheduling data comprises a plurality of reordered UE information;
a decoding result data obtaining module, configured to detect and decode, by the base station, a PUSCH channel corresponding to the reordered UE information, and obtain decoding result data; the decoding result data comprises first decoding result data and second decoding result data; the first decoding result data is the decoding result data when the base station receives the uplink Cyclic Redundancy Check (CRC) timing interruption and the decoding operation of the reordered UE information is not completely finished in the Transmission Time Interval (TTI); the second decoding result data is the decoding result data when the decoding operation of the residual re-sequencing UE information is completely finished;
and the allocation module is used for allocating Physical Downlink Control Channel (PDCCH) and Physical Uplink Shared Channel (PUSCH) resources to the UE corresponding to the reordered UE information by the base station according to the first decoding result data and the second decoding result data.
8. The apparatus of claim 7, wherein the first UE scheduling data comprises a plurality of UE information to be scheduled; the second UE scheduling data obtaining module includes:
the extracting submodule is used for extracting the UE information to be scheduled in the first UE scheduling data by the base station;
and the sequencing submodule is used for sequencing the UE information to be scheduled by the base station according to the preset priority to obtain second UE scheduling data.
9. The apparatus of claim 7 or 8, wherein the assignment module comprises:
a first scheduling queue generating submodule, configured to update, by the base station, a hybrid automatic repeat request HARQ state of the UE according to the first decoding result data after the first decoding result data is obtained, and generate a scheduling queue;
and the first allocating submodule is used for allocating PDCCH and PUSCH resources to the UE corresponding to the reordered UE information by the base station according to the sequence of the scheduling queue.
10. The apparatus of claim 9, wherein the assignment module further comprises:
the judging submodule is used for judging whether the current time reaches the scheduling deadline of the subframe and whether the subframe has the residual Physical Resource Block (PRB) after the second decoding result data is obtained;
a second scheduling queue generating submodule, configured to update, by the base station, a hybrid automatic repeat request HARQ status of the UE according to the second decoding result data when the current time does not reach a scheduling deadline of the subframe and the subframe has remaining PRBs, and generate a scheduling queue;
and the second allocation submodule is used for allocating PDCCH and PUSCH resources to the UE corresponding to the reordered UE information by the base station according to the sequence of the scheduling queue.
11. The apparatus of claim 10, further comprising:
the retransmission information judging module is used for judging whether the current time does not reach the scheduling deadline of the sub-frame or not and whether the sub-frame has no remaining PRB or not; or, when the current time reaches the current subframe scheduling deadline and the current subframe has no remaining PRBs; or, when the current time reaches the scheduling deadline of the subframe and the subframe has remaining PRBs, the base station determines whether the second decoding result data contains retransmission information.
12. The apparatus of claim 7, 8, 10 or 11, further comprising:
a configuration module, configured to configure, when the second decoding result data includes retransmission information, the base station configures the retransmission operation of this time as an adaptive retransmission operation;
and the scheduling stopping module is used for stopping the scheduling operation of the sub-frame by the base station when the second decoding result data does not contain the retransmission information.
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