CN114521026A - Communication data scheduling processing method, device, computer equipment and storage medium - Google Patents

Abstract

The embodiment of the invention discloses a communication data scheduling processing method, a communication data scheduling processing device, computer equipment and a storage medium. The method comprises the following steps: acquiring target sending equipment information of at least one target sending equipment in a physical control channel; determining a data processing sequence corresponding to each target sending device according to the information of each target sending device; acquiring transmission data corresponding to each target sending device in a physical shared channel; and scheduling the transmission data corresponding to the target sending equipment according to the data processing sequence. The embodiment of the invention can reasonably configure the resources for scheduling processing and improve the system reliability of the receiving end.

Description

Communication data scheduling processing method, device, computer equipment and storage medium

technical field

Embodiments of the present invention relate to the field of communications, and in particular, to a method, an apparatus, a computer device, and a storage medium for scheduling and processing communication data.

Background technique

In the communication field, after receiving the symbol data, the receiving end respectively performs channel estimation, demodulation and decoding on the channel carrying the control information and the channel carrying the data.

Usually, when the decoding of the channel carrying the control information is correct, the channel estimation, demodulation and decoding of the channels carrying the data are started one by one.

However, in the above method, demodulation and decoding are performed on the data-bearing channel of each transmitting end, resulting in excessive consumption of channel processing resources.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a communication data scheduling processing method, device, computer equipment and storage medium, which can reasonably configure scheduling processing resources and improve the system reliability of the receiving end.

In a first aspect, an embodiment of the present invention provides a method for scheduling and processing communication data, including:

In the physical control channel, obtain target sending device information of at least one target sending device;

According to the information of each target sending device, determine the data processing order corresponding to each target sending device;

In the physical shared channel, obtain transmission data corresponding to each of the target sending devices;

The transmission data corresponding to each target sending device is scheduled and processed according to each data processing order.

In a second aspect, an embodiment of the present invention provides an apparatus for scheduling and processing communication data, including:

A sending device information acquisition module, configured to obtain target sending device information of at least one target sending device in a physical control channel;

a processing order determination module, configured to determine the data processing order corresponding to each of the target transmission devices according to the information of each of the target transmission devices;

a transmission data acquisition module, configured to acquire transmission data corresponding to each of the target sending devices in the physical shared channel;

The scheduling processing module is configured to perform scheduling processing on the transmission data corresponding to each target sending device according to each data processing order.

In a third aspect, an embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, when the processor executes the program, the implementation of the present invention is implemented The communication data scheduling processing method described in any one of the examples.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the communication data scheduling processing method as described in any one of the embodiments of the present invention .

The embodiment of the present invention obtains the target sending device information of at least one target sending device by extracting the data in the physical control channel, and determines the data processing order of each target sending device according to the information of each sending device, and executes each target sending device according to the processing order. Processing the transmission data carried in the channel corresponding to the sending device can solve the problem of waste of resources in demodulating and decoding the transmission data of each sending end in the channel in the prior art. The transmission data of each transmitting end is subjected to sequential scheduling processing, and the scheduling resources of the channel data are reasonably allocated, so as to improve the utilization rate of the scheduling resources and improve the reliability of the communication network.

Description of drawings

1a is a flowchart of a method for scheduling and processing communication data in Embodiment 1 of the present invention;

1b is a schematic diagram of a subframe structure in Embodiment 1 of the present invention;

1c is a schematic diagram of a symbol structure of an adjacent band transmission mode in Embodiment 1 of the present invention;

1d is a schematic diagram of a symbol structure of a non-adjacent band transmission mode in Embodiment 1 of the present invention;

2a is a flowchart of a method for scheduling and processing communication data in Embodiment 2 of the present invention;

2b is a schematic diagram of an application scenario in Embodiment 2 of the present invention;

3 is a schematic structural diagram of an apparatus for scheduling and processing communication data in Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of a computer device in Embodiment 4 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

Example 1

FIG. 1a is a flowchart of a method for scheduling and processing communication data in Embodiment 1 of the present invention. This embodiment is applicable to the case of scheduling and processing communication data in a multi-level node network. The data scheduling processing device can be implemented by means of software and/or hardware, and can generally be integrated into computer equipment. As shown in Figure 1a, the method of this embodiment specifically includes:

In the embodiment of the present invention, in a communication network, a physical channel used for data transmission includes: a physical shared channel (Physical Sidelink Shared Channel, PSSCH): a channel used to carry data; physical layer processing mechanisms such as coding, rate matching, and interleaving, and terminals The same for the terminal (Device-to-Device, D2D); Physical Control Channel (Physical Sidelink Control CHannel, PSCCH): a channel used to carry control information, such as scheduling assignment signaling (Scheduling Assignment, SA); coding, rate Physical layer processing mechanisms such as matching and interleaving are the same as D2D; Physical Sidelink Broadcast Channel (PSBCH): used for synchronization control and adjustment. The PSCCH is used to indicate information such as time-frequency domain resource location, modulation and coding mode, and target identification information (IDentity, ID) for PSSCH transmission, and the PSSCH is used to carry data.

Also, the transmitted signal types include demodulation reference signals (DMRS), and synchronization signals (Synchronization Signals, SS). The DMRS is sent together with PSSCH, PSCCH and PSBCH for demodulation of the above-mentioned channels. The SS includes a primary synchronization signal (Primary Sidelink Synchronization Signals, PSSS) and a secondary synchronization signal (Secondary Sidelink Synchronization Signals, SSSS). PSSS is the SideLink primary synchronization signal, and SSSS is the SideLink secondary synchronization signal. PSSS and SSSS can obtain the cell ID, and the cell ID is divided into two sets: id_net and id_oon. The generation of PSSS is the same as that of D2D, and SSSS adopts the SS sequence of LTE subframe 5.

In a specific example, the embodiment of the present invention adopts the technology of Long Term Evolution Vehicle (LTE-V), which is an evolution technology for intelligent transportation and Internet of Vehicles applications and based on the 4G LTE system. LTE-V can use the existing cellular network to support the communication requirements of large bandwidth and large coverage; LTE-V can also be independent of the cellular network to achieve low-latency and highly reliable direct communication between vehicles and with nodes in the surrounding environment. driving safety needs. LTE-V can only use half duplex operation (Half duplex Communication, HD) on the PC5 interface. The DMRS transmission of LTE-V is the same as the DMRS transmission of the LTE uplink shared physical channel (PUSCH). The frequency domain is consistent with the transmission channel bandwidth, which occupies the entire bandwidth at most. The time domain is encrypted to support high-speed mobile. .

When data transmission is performed in the physical channel, the time domain structure is specifically shown in Figure 1b: the adopted subframe structure, the PSCCH or PSSCH subframe contains 4 DMRS symbols, and the others are data symbols. The first symbol (number 0) in the data symbols is used for automatic gain control (Automatic Gain Control, AGC) adjustment of the subframe, and the last symbol is not sent as a guard interval.

The specific frequency domain structure is shown in Figure 1c and Figure 1d: Figure 1c is a schematic diagram of resource pool configuration using adjacent band transmission, and Figure 1d is a schematic diagram of resource pool configuration using non-adjacent band transmission. In Figs. 1c and 1d, the time domain resource of the resource pool is a time slice occupied by one symbol.

In adjacent band transmission mode:

Adjacency of PSCCH and PSSCH ResourceBlocks (Adjacency of PSCCH and PSSCH ResourceBlocks): used to indicate whether the SA and data (data) adopt the adjacent band transmission mode.

If the adjacent band transmission mode is adopted, in the resource pool configuration of the adjacent band, the resources of the SA are always located in the lowest 2 PRBs of the Physical Resource Block (PRB) of a sub-channel, and each sub-channel has only two PRBs. an SA channel.

Specifically, as shown in Figure 1c, the parameters included in the resource pool configuration are as follows:

Subchannel size: The configurable parameters are {5, 6, 10, 15, 20, 25, 50, 75, 100}; Number of subchannels: The configurable parameters are {1 ,3,5,8,10,15,20}; Starting RB of subchannels: an integer from {0,...,99}.

If the non-adjacent band transmission mode is adopted, there is a one-to-one correspondence between SA resources and subchannels, and the number of corresponding SA channels is the same as the number of subchannels. Specifically, as shown in Figure 1d, the parameters included in the resource pool configuration are as follows:

Subchannel size: The configurable parameters are {4,5,6,8,9,10,12,15,16,18,20,30,48,72,96}; Number of subchannels: The configurable parameters are { 1,3,5,8,10,15,20}; Starting RB ofsubchannels: Integer from {0,...,99}; Starting RB of PSCCH resource (Starting RB of PSCCHpool): from {0,... ,99} is an integer, this parameter is not required if the adjacent band transmission mode is used.

S110, in the physical control channel, acquire target sending device information of at least one target sending device.

The physical control channel is used to transmit control information. Exemplarily, the physical control channel is a PSCCH of a communication network based on the LTE-V technology. The control information is used by the receiving end to determine information such as the corresponding PSSCH transmission time-frequency domain resource location, modulation and coding method, and receiving target identification information (IDentity, ID) targeted by the PSSCH.

The computer equipment for implementing the method for scheduling and processing communication data in the embodiment of the present invention is a receiving equipment in LTE-V. The target sending device is a sending device in LTE-V. Among them, the receiving device is usually a vehicle-mounted terminal. The target sending device may include at least one of the following: a vehicle-mounted terminal, a roadside facility terminal, a user terminal, and a network (eg, a local area network), and the like. Wherein, the roadside facility terminal may include a traffic light terminal, a street sign terminal, or a roadside construction terminal, and the like.

Optionally, the target sending device includes a node in the Internet of Vehicles, and the node includes a traffic light device, a vehicle device, or a user device.

The target sending device and receiving device are both nodes in the Internet of Vehicles. In the Internet of Vehicles, a receiving device can simultaneously receive signals sent by multiple target sending devices. A node can be a traffic light device, a vehicle device, or a user device. The traffic light device can provide traffic light location information and signal light information, so that the receiving device can avoid obstacles for the traffic light device, drive and brake according to the traffic light signal, or perform route planning according to multiple traffic light signals. The vehicle equipment can provide the vehicle's own position information and its own driving status information, etc., so that the receiving equipment can perform obstacle avoidance, driving status adjustment and route planning for the vehicle equipment. The user equipment can provide the user's own position and its own movement state (including static state and motion state), so that the receiving device can avoid obstacles for passers-by. Typically, the receiving device is a vehicle device.

By configuring the target sending device as a vehicle networking node, and configuring the vehicle network node to include various types of devices, the data diversity of the target sending device can be increased, and the application scenarios of the receiving device in the vehicle networking can be increased.

The sending device information is used to determine the processing order. Sending device information may refer to data associated with the sending device, and may include at least one of the following: identification information of the sending device (or the name of the car, user name, or roadside device name, etc.), the type of the sending device, and the attributes of the sending device information (such as the brand of the car, the gender of the user or the function of the roadside device) and the configuration information of the sending device (such as the pre-configured priority of the sending device). Wherein, the sending device information can be extracted from the control information.

Optionally, in the physical control channel, acquiring the target sending device information of at least one target sending device includes: performing channel estimation, demodulation and decoding on data corresponding to the physical control channel in the valid symbol data of the subframe. ; If the decoding result is correct, obtain the target sending device information of at least one target sending device extracted from the correct decoding result.

The receiving device performs data processing in units of subframes, that is, the receiving device processes one subframe and continues to process the next subframe. A subframe usually includes 14 symbols, as shown in FIG. 1b for example, in which there are two symbols at the beginning and the end that are not used for data transmission. Valid symbol data is the middle 12 symbols. Valid symbol data are symbols used to carry valid information, eg, to carry control information and to carry transmission data. The data corresponding to the physical control channel may refer to control information carried by the physical control channel, and the data corresponding to the physical control channel includes control information carried by multiple subchannels, or includes control information corresponding to multiple target sending devices.

The correct decoding result indicates that correct control information can be obtained, so that channel estimation, demodulation and decoding can be performed on the corresponding transmission data according to the correct control information. The correct decoding result includes the sending device information, and the sending device information can be directly extracted from the decoding result. If the decoding result is wrong, the target sending device with the decoding error is recorded, so as to combine the retransmitted data to form a correct decoding result, or discard it directly.

It should be noted that, in the physical shared channel, acquiring the transmission data corresponding to each of the target sending devices includes: extracting data corresponding to the physical control channel in the valid symbol data of the subframe, and acquiring each of the target sending devices corresponding transmission data.

By processing data in subframe units, effective symbol data can be quickly obtained, and sending device information can be extracted, so as to obtain the transmission data of each target sending device for scheduling processing, reduce data accumulation, and improve communication data analysis efficiency.

S120: Determine, according to the information of each target sending device, a data processing order corresponding to each of the target sending devices.

The data processing order is used to sequentially perform scheduling processing on the data of different sending devices. The data processing order may refer to the order of processing data corresponding to different target sending devices. Wherein, the data corresponding to the target sending device is the data carried by the sub-channel corresponding to the target sending device in the physical shared channel. In fact, one target sending device may correspond to multiple sub-channels in the physical shared channel, that is, the data carried by the corresponding multiple sub-channels are all data sent by the target sending device. Exemplarily, each target sending device can be divided according to the sending device information, and the priority of each group can be determined, and the group can continue to be subdivided according to the sending device information, and the priority of each classification can be determined, wherein , the data with high priority is processed first, and the data with low priority is processed last.

Optionally, the determining the data processing order corresponding to each target sending device according to the target sending device information includes: according to the retransmission identification information included in the target sending device information and each of the sending devices. Corresponding initial transmission decoding result type, each described target sending device is divided into retransmission to be combined sending device and non-retransmission to be combined sending device, and determine the data processing order corresponding to each described target sending device, wherein, all The data processing order of the transmitting equipment of the transmitting equipment to be combined for retransmission is described before the data processing order of the transmitting equipment of the transmitting equipment to be combined for non-retransmission; in the same type of target transmitting equipment, according to the The scheduling indicates the priority, and determines the data processing order corresponding to each of the target sending devices of the same type. , according to the signal-to-noise ratio included in the information of each target sending device, determine the data processing order corresponding to each target sending device of the same priority, and the data processing order of the sending device with a high signal-to-noise ratio precedes the data processing order of the sending device with a low signal-to-noise ratio. Sending device data processing order.

The retransmission identification information is used to determine whether the data packet (including control information and transmission data) in the subchannel corresponding to the sending device is a retransmission data packet. Generally, the types of data packets can include initial transmission data packets and retransmission data packets. In order to avoid packet loss in the first transmitted data packet, the sending device can resend the data packet. The retransmitted data packet is the retransmitted data packet. The retransmitted data packet is used by the receiving device to obtain the accurate data packet without data loss. In order to improve the accuracy of data transmission. The retransmission identification information may include initial transmission without retransmission identification, initial transmission with retransmission identification, and retransmission identification. The initial transmission and no retransmission identifier is used to identify that the current data packet is an initial transmission data packet, and the corresponding sending device will not send the corresponding retransmitted data packet. The initial transmission and the retransmission flag are used to identify the current data packet as the initial transmission data packet, and the corresponding sending device will send the corresponding retransmission data packet. For example, it can be sent in the next subframe or in the next nth subframe. send. The retransmission identifier is used to identify the current data packet as a retransmitted data packet. The initial transmission decoding result type is used to determine whether the decoding result of the initial transmission data packet sent by the sending device is correct. Usually, the retransmitted data packets whose type of the initial transmission decoding result is the correct decoding result need not be processed further and can be discarded.

The type of the target sending device is preferentially judged, and different types of data processing orders are determined according to the type of the target sending device. According to the retransmission identification information and the type of the initial transmission decoding result, each target sending device is classified, wherein the types may include: the type of the sending device to be combined for retransmission and the type of the sending device to be combined for non-retransmission. The type of the target sending device corresponding to the retransmission data packet marked with the retransmission identifier and the type of the initial transmission decoding result is the type of the retransmission data packet corresponding to the error decoding result is determined as the type of the sending device to be combined for retransmission. The other types are the retransmission pending device type and the non-retransmission pending device type. For example, the target sending device corresponding to the initial transmission with no retransmission identifier and the initial transmission with the retransmission identifier, and the retransmission identifier corresponding to the retransmission data packet corresponding to the correct decoding result The target sending device of , and the corresponding type is the non-retransmission to be combined sending device type. The advantage of this setting is that the data that has not been correctly decoded in the history can be processed, the fault tolerance of the communication network to the communication data can be improved, and the processing of data packets with decoding errors can be reduced.

Secondly, in the same type, continue to divide the target sending device according to the priority of the scheduling indication, and determine the data processing order according to the division result. Among multiple target sending devices of the same type, the target sending devices of the same type are divided according to the priority of the scheduling indication, and the data processing order is determined according to the division result. The higher the priority data processing order is, the lower the priority. The later the data processing order is. The scheduling indication priority may refer to the priority included in the SA signaling. Usually, the priority is a pre-configured priority based on any indicator (which can be configured as needed), for example, a pre-configured priority based on the type of the target sending device . Exemplarily, the priority of the user equipment is 3, the priority of the traffic light device is 2, and the priority of the vehicle device is 1. The advantage of this setting is that key signals or signals with a higher degree of importance can be preferentially processed, emergency events can be responded, the reliability of the receiving device can be improved, and the transmission reliability of the communication network can be improved.

Thirdly, among multiple target sending devices of the same priority, the target sending devices of the same priority are divided according to the signal-to-noise ratio (Signal Noise Ratio, SNR), and the data processing order is determined according to the division result, and the signal-to-noise ratio is high. The higher the data processing order is, the later the data processing order with lower signal-to-noise ratio is. The signal-to-noise ratio may refer to the communication quality of the channel between the receiving device and the target sending device, wherein the signal-to-noise ratio may be determined according to the channel estimation result. The advantage of this setting is that the data packets with signal quality can be preferentially processed, and the data packets with poor signal quality can be processed later, which can reduce the influence of errors caused by the data packets with poor signal quality, thereby improving the reliability of the communication network.

In fact, when the processing capacity of the receiving device is limited, the priority scheduling process can retransmit the combined target sending device, and if there is still capacity, the target sending device with high priority is scheduled to be processed. In the case of the same priority, the PSCCH is preferentially scheduled. Target transmitting device with high channel signal-to-noise ratio.

By configuring the type of target sending device, scheduling indication priority and signal-to-noise ratio, and determining the data processing order of each target sending device in turn according to the aforementioned parameters, it is possible to avoid unnecessary processing when the processing capacity is limited. Overhead, the limited processing power can be used in the processing operation of the transmission data sent by the key target sending device, and the reliability of the system is improved.

S130, in the physical shared channel, acquire transmission data corresponding to each of the target sending devices.

The physical shared channel is used to transmit data. Exemplarily, the physical shared channel is the PSSCH of the communication network based on the LTE-V technology. The transmission data may refer to data carried in the physical shared channel, and the transmission data is used for scheduling processing by the receiving device to obtain valid data and perform processing operations. For example, the processing operations may include obstacle avoidance operations on the target sending device, adjustment operations on the traveling direction and speed of the receiving device, planning operations on the traveling route of the receiving device, and generating operations of warning prompts for the target sending device.

S140: Perform scheduling processing on the transmission data corresponding to each target sending device according to each data processing order.

The data processing order specifies the processing order in which the receiving device processes the data sent by each target sending device. The scheduling process may include channel estimation, equalization demodulation, channel decoding, etc. performed by the receiving device on the transmission data. Specifically, channel estimation may refer to estimating channel transmission characteristics by using pilot symbols. Equalization demodulation includes equalization and demodulation, wherein equalization may refer to compensating for the signal distortion caused by the non-ideality of the transmission channel by using the channel estimation result, and simultaneously realizing the maximum ratio combining of received signals of multiple antennas. The demodulation may refer to performing an inverse discrete Fourier transform (Inverse Discrete Fourier Transform, IDFT) on the signal after the equalization process to transform the frequency domain signal into the time domain. Then, according to the different modulation modes, the time domain signal is transformed into serial demodulated data through the corresponding constellation demapping. Channel decoding may refer to descrambling, de-channel interleaving, and decoding of data.

The embodiment of the present invention obtains the target sending device information of at least one target sending device by extracting the data in the physical control channel, and determines the data processing order of each target sending device according to the information of each sending device, and executes each target sending device according to the processing order. Processing the transmission data carried in the channel corresponding to the sending device can solve the problem of waste of resources in demodulating and decoding the transmission data of each sending end in the channel in the prior art. The transmission data of each transmitting end is subjected to sequential scheduling processing, and the scheduling resources of the channel data are reasonably allocated, so as to improve the utilization rate of the scheduling resources and improve the reliability of the communication network.

Embodiment 2

FIG. 2a is a flowchart of a method for scheduling and processing communication data in Embodiment 2 of the present invention. This embodiment is embodied on the basis of the foregoing embodiment. The method of this embodiment specifically includes:

S210, in the physical control channel, acquire sending device information of at least one sending device.

Perform channel estimation, equalization demodulation, channel decoding, etc. on the bearer signal of the valid symbol data of the subframe in the physical control channel, and obtain the sending device information of the sending device associated with the subframe. Exemplarily, as shown in FIG. 1c and FIG. 1d , channel estimation, equalization demodulation, and channel decoding are performed on the channel where the scheduling assignment signaling (SA signaling) is located to obtain the sending device information of at least one sending device.

S220: Determine a bad pixel sending device in each of the sending devices according to the information of each of the target sending devices, and eliminate them.

The dead pixel sending device is used to remove the target sending device, and the transmission data associated with the dead pixel sending device is not parsed. Among the sending devices associated with the subframe, the bad pixel sending device may refer to a sending device that does not perform scheduling processing. Elimination is used to screen the sending device and filter out the sending device with dead pixels.

For the PSSCH channel, since the last symbol of each subframe of the transmitting device is used as the interval for sending and receiving switching (GAP), the first symbol of the receiving end is used for AGC acquisition. After puncturing two symbols, some modulation and coding strategies (Modulation and coding strategies) and Coding Scheme, MCS) and the number of RBs are combined, the corresponding transport block size (Transport Block Size, TBS) code block cannot be decoded correctly even under ideal channel conditions. Such a device can be searched according to the sending device information, and subsequent data transmission scheduling processing is not performed, so as to avoid performing operations such as channel estimation and equalization demodulation before decoding errors, thereby avoiding resource waste.

Optionally, the determining a bad pixel sending device in each of the sending devices according to the information of each target sending device includes: according to the version information of the physical layer protocol, the number of times of transmission and the number of transmissions included in the information of each of the target sending devices. Format, determine the mapping relationship of the bad pixel sending devices matched by the target sending device information; Determine the bad pixel sending device in the sending device described above.

The mapping relationship table between the bad pixel sending devices identified by the modulation and coding strategy can be preconfigured, and the mapping relationship between the version information, transmission times and transmission format of the physical layer protocol and the mapping relationship table can be configured. Therefore, the mapping relation table can be queried through the version information, transmission times and transmission format of the physical layer protocol, and the dead pixel sending device matching the modulation and coding strategy identifier can be queried in the queried mapping relation table. The number of transmissions for the initial transmission without the retransmission identifier is a single transmission, the initial transmission with the retransmission identifier, and the two transmissions for the retransmission identifier. Generally, the number of transmissions includes a single transmission or two transmissions. The version information, transmission times, transmission format, and modulation and coding strategy identification of the physical layer protocol are all data included in the SA signaling. The aforementioned mapping relationship is determined by statistical experiments.

By configuring the mapping relationship between the modulation and coding strategy identifier and the bad pixel sending device, as well as the relationship between the version information of the physical layer protocol, the number of transmissions, and the transmission format and the mapping relationship, the bad pixel sending device can be determined according to the pre-configured relationship. The determination efficiency and accuracy of the dead pixel sending device can be improved.

Optionally, the bad pixel sending device mapping relationship includes: a bad pixel mapping table and a range of bad pixel identifiers; the modulation and coding strategy identifiers included according to each target sending device information, and the matched bad pixel The sending device mapping relationship, and determining a bad pixel sending device in each of the sending devices includes: in the bad pixel mapping table matched with the information of each of the target sending devices, according to the modulation and coding strategy included in the information of each of the target sending devices Identification, query the identification information of the bad point resource block corresponding to each target sending device information; if it is determined that the resource block identification information included in the sending device information of the sending device matches the corresponding bad point resource block identification information, then determine The sending device is a bad spot sending device; in the range of the bad spot identifiers matched by the information of each target sending device, obtain the modulation and coding strategy identifiers corresponding to the information of each target sending device; if it is determined that the sending device of the sending device If the modulation and coding strategy identifier included in the device information matches the corresponding range of the bad pixel identifiers, it is determined that the sending device is a bad pixel sending device.

The bad point mapping table stores the mapping relationship between the modulation and coding strategy identifier and the bad point resource block identifier information, and is used for querying the matched bad point resource block identifier information according to the modulation and coding strategy identifier. The bad point resource block identification information is the resource block identification information corresponding to the bad point sending device. Usually, in some resource blocks corresponding to the modulation and coding strategy identifiers, even under ideal channel conditions, it cannot be decoded correctly. The resource blocks corresponding to the modulation and coding strategy identifiers that cannot be decoded correctly can be configured as a bad pixel mapping table.

The resource block identification information included in the sending device information of the sending device matches the bad pixel resource block identification information corresponding to the sending device, that is, the sending device carries at least one resource block of the transmission data in the subframe or valid symbol data, which belongs to the corresponding resource block of the sending device. In the range of the bad pixel resource block, it is determined that the sending device is a bad pixel sending device. As shown in FIG. 2b, the sending device 0 carries at least one resource block for transmitting data and control information in the subframe or valid symbol data, which may refer to the resource block carrying scheduling allocation signaling 0 and data 0, there are 10, and the resource block is 10. The identifier of the block can be 1-10. If the range of the bad resource block includes 9, 12 and 15, the resource block identifier information included in the sending device information of the sending device matches the bad resource block identifier corresponding to the sending device. The sending device is a dead pixel sending device.

The range of bad pixel identifiers may refer to a set of modulation and coding strategy identifiers corresponding to the bad pixel sending device. The modulation and coding strategy ID included in the sending device information of the sending device matches the corresponding range of bad pixel IDs, which may mean that the modulation and coding strategy ID belongs to the range of bad pixel IDs.

According to the version information of the physical layer protocol, the number of transmissions and the transmission format, it can be determined whether the bad pixel mapping table or the bad pixel identification range is matched, and different parameters can be selected to query accordingly to determine the sending device.

Exemplarily, the version information of the physical layer protocol is the R14 version or the R15 version, and the transmission format is 0; the number of transmissions indicated in the PSCCH channel decoding result is a single transmission.

The mapping relationship queried at this time includes the first bad pixel mapping table and the first bad pixel identification range, wherein the first bad pixel mapping table is between the modulation and coding strategy identification in the range of 0-20 and the identification information of the bad pixel resource block. mapping relationship. The first dead pixel identification range is 21-28. That is, if the modulation and coding strategy identifier of the sending device belongs to the range of 0-20, then according to the modulation and coding strategy identifier of the sending device, the identification information of the bad pixel resource block is queried in the first bad pixel mapping table, and the resource block corresponding to the sending device is queried in the first bad pixel mapping table. When the identification information is the same as any one of the queried bad pixel resource block identification information, the sending device is a bad pixel sending device; if the modulation and coding strategy identification of the sending device belongs to the range of 21 to 28, the sending device is a bad pixel sending device.

For another example, the version information of the physical layer protocol is the R14 version or the R15 version, and the transmission format is 0; the number of transmissions indicated in the PSCCH channel decoding result is two transmissions.

If the current data packet is an initial transmission data packet and a retransmission data packet, the mapping relationship queried at this time includes the second bad pixel mapping table. Wherein, the second bad point mapping table is a mapping relationship between the modulation and coding strategy identifier in the range of 0-28 and the bad point resource block identifier information. If the modulation and coding strategy identifier of the sending device belongs to the range of 0-28, query the bad pixel resource block identifier information in the second bad pixel mapping table according to the modulation and coding strategy identifier of the sending device, and search the resource block identifier corresponding to the sending device in the second bad pixel mapping table. When the information is the same as any one of the queried bad pixel resource block identification information, the sending device is a bad pixel sending device.

If the current data packet only includes retransmission data packets, the mapping relationship queried at this time includes the third dead pixel mapping table and the second dead pixel identification range, wherein the third bad pixel mapping table is modulation and coding in the range of 0-20 The mapping relationship between the policy identifier and the bad point resource block identifier information. The second dead pixel identification range is from 21 to 28. That is, if the modulation and coding strategy identifier of the sending device belongs to the range of 0-20, then according to the modulation and coding strategy identifier of the sending device, the bad pixel resource block identifier information is queried in the third bad pixel mapping table, and the resource block corresponding to the sending device is queried. When the identification information is the same as any one of the queried bad pixel resource block identification information, the sending device is a bad pixel sending device; if the modulation and coding strategy identification of the sending device belongs to the range of 21 to 28, the sending device is a bad pixel sending device.

For another example, the version information of the physical layer protocol is the R15 version, and the transmission format is 1; the number of transmissions indicated in the PSCCH channel decoding result is a single transmission.

If the mapping relationship queried at this time includes the fourth dead pixel mapping table. According to the modulation and coding strategy identification of the transmitting device, the identification information of the bad pixel resource block is queried in the fourth bad pixel mapping table, and the identification information of the resource block corresponding to the transmitting device is the same as any one of the queried bad pixel resource block identification information. At the same time, the sending device is a dead pixel sending device.

In a specific example, the first bad pixel mapping table is shown in Table 1, where I _MCS is the modulation and coding strategy identifier, I _TBS is the transport block size (bits), and N _PRB is the bad pixel resource block identifier information.

Table 1

The second dead pixel mapping table is shown in Table 2:

Table 2

The third dead pixel mapping table is shown in Table 3:

table 3

The fourth dead pixel mapping table is shown in Table 4:

Table 4

Through the bad pixel sending device mapping relationship, including the bad pixel mapping table and the bad pixel identification range, and according to different mapping situations, the bad pixel sending device can be determined from different mapping relationships, and the determination of the bad pixel sending device can be flexibly configured. way, and accurately determine the bad pixel sending device.

S230: Determine the remaining sending devices as target sending devices, and acquire target sending device information of each of the target sending devices.

The remaining sending devices are sending devices other than the sending devices for excluding dead pixels, which can save scheduling processing of the sending devices with dead pixels and save resources.

S240: Determine a data processing order corresponding to each target sending device according to the information of each target sending device.

S250, in the physical shared channel, acquire transmission data corresponding to each of the target sending devices.

S260: Perform scheduling processing on the transmission data corresponding to each target sending device according to each data processing order.

In the embodiment of the present invention, by screening the sending device information according to the sending device information of the sending device information, eliminating the bad-spot sending device, and obtaining the remaining transmission data of the target sending device for scheduling processing, the transmission data of the dead-spot sending device can be omitted. It can improve the processing efficiency of communication data, reasonably allocate the processing resources of communication data, and reduce resource consumption.

Embodiment 3

FIG. 3 is a schematic diagram of an apparatus for scheduling and processing communication data according to Embodiment 3 of the present invention. The third embodiment is a corresponding device for implementing the communication data scheduling and processing method provided by the above embodiments of the present invention. The device can be implemented in software and/or hardware, and can generally be integrated into computer equipment, such as a node of the Internet of Vehicles.

Correspondingly, the apparatus of this embodiment may include:

a sending device information obtaining module 310, configured to obtain target sending device information of at least one target sending device in a physical control channel;

a processing order determination module 320, configured to determine the data processing order corresponding to each of the target transmission devices according to the information of each of the target transmission devices;

a transmission data acquisition module 330, configured to acquire transmission data corresponding to each of the target sending devices in the physical shared channel;

The scheduling processing module 340 is configured to perform scheduling processing on the transmission data corresponding to each target sending device according to each data processing order.

The embodiment of the present invention obtains the target sending device information of at least one target sending device by extracting the data in the physical control channel, and determines the data processing order of each target sending device according to the information of each sending device, and executes each target sending device according to the processing order. Processing the transmission data carried in the channel corresponding to the sending device can solve the problem of waste of resources in demodulating and decoding the transmission data of each sending end in the channel in the prior art. The transmission data of each transmitting end is subjected to sequential scheduling processing, and the scheduling resources of the channel data are reasonably allocated, so as to improve the utilization rate of the scheduling resources and improve the reliability of the communication network.

Further, the processing order determination module 320 is specifically configured to: send each of the targets according to the retransmission identification information included in the information of each of the target sending devices and the type of the initial transmission decoding result corresponding to each of the sending devices. The device is divided into a retransmission to be combined sending device and a non-retransmission to be combined sending device, and the data processing order corresponding to each of the target sending devices is determined, wherein the data processing order of the sending device of the retransmission to be combined sending device is prior to The sending device data processing order of the non-retransmission to-be-combined sending devices; in the target sending devices of the same type, each target sending device of the same type is determined according to the scheduling indication priority included in the information of each target sending device Corresponding data processing order, the data processing order of the sending device with high priority is ahead of the data processing order of the sending device with low priority; in the target sending device of the same priority, according to the signal-to-noise ratio included in the information of each target sending device , determine the data processing order corresponding to each of the target sending devices of the same priority, and the data processing order of the sending device with a high signal-to-noise ratio precedes the data processing order of the sending device with a low signal-to-noise ratio.

Further, the sending device information obtaining module 330 is specifically configured to: obtain sending device information of at least one sending device in a physical control channel; determine the sending device information in each sending device according to the sending device information of each sending device Dead pixel sending devices are eliminated, and the remaining sending devices are determined as target sending devices, and target sending device information of each target sending device is acquired.

Further, the sending device information obtaining module 330 is specifically configured to: determine whether the information of each target sending device matches the bad information according to the version information, transmission times and transmission format of the physical layer protocol included in the target sending device information. Point sending device mapping relationship; according to the modulation and coding strategy identifiers included in each target sending device information and the matching bad pixel sending device mapping relationship, determine a bad pixel sending device in each of the sending devices.

Further, the bad pixel sending device mapping relationship includes: a bad pixel mapping table and a bad pixel identification range; the sending device information acquisition module 330 is specifically used for: in each target sending device information matching bad pixel mapping In the table, according to the modulation and coding strategy identifiers included in the target sending device information, query the bad pixel resource block identifier information corresponding to each target sending device information; if the resource block included in the sending device information of the sending device is determined If the identification information matches the identification information of the corresponding bad pixel resource block, it is determined that the sending device is a bad pixel sending device; in the range of the bad pixel identifiers matched by the information of each target sending device, obtain each target sending device The modulation and coding strategy identifier corresponding to the information; if it is determined that the modulation and coding strategy identifier included in the sending device information of the sending device matches the range of the corresponding bad pixel identifier, the sending device is determined to be a bad pixel sending device.

Further, the sending device information obtaining module 330 is specifically configured to: perform channel estimation, demodulation and decoding on the data corresponding to the physical control channel in the valid symbol data of the subframe; if the decoding result is correct, obtain the The target sending device information of at least one target sending device is extracted from the correct decoding result.

Further, the target sending device includes a node in the Internet of Vehicles, and the node includes a traffic light device, a vehicle device or a user device.

The above communication data scheduling processing apparatus can execute the communication data scheduling processing method provided by the embodiment of the present invention, and has functional modules and beneficial effects corresponding to the executed communication data scheduling processing method.

Embodiment 4

FIG. 4 is a schematic structural diagram of a computer device according to Embodiment 4 of the present invention. Figure 4 shows a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 4 is only an example, and should not impose any limitation on the function and scope of use of the embodiments of the present invention.

As shown in FIG. 4, computer device 12 takes the form of a general-purpose computing device. Components of computer device 12 may include, but are not limited to, one or more processors or processing units 16 , system memory 28 , and a bus 18 connecting various system components including system memory 28 and processing unit 16 . Computer device 12 may be a device attached to a high speed industrial control bus.

Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, enhanced ISA bus, Video Electronics Standards Association (Video Electronics Standards Association) , VESA) local bus and peripheral component interconnect (Peripheral Component Interconnect, PCI) bus.

Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including both volatile and nonvolatile media, removable and non-removable media.

System memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and/or cache memory 32 . Computer device 12 may further include other removable/non-removable, volatile/non-volatile computer system storage media. For example only, storage system 34 may be used to read and write to non-removable, non-volatile magnetic media (not shown in FIG. 4, commonly referred to as a "hard drive"). Although not shown in FIG. 4, magnetic disk drives may be provided for reading and writing to removable non-volatile magnetic disks (eg, "floppy disks"), and removable non-volatile optical disks (eg, Compact Disk Read-Only Memory) Disc Read-Only Memory, CD-ROM), digital video disc (Digital Video Disc-Read Only Memory, DVD-ROM) or other optical media) optical disk drive for reading and writing. In these cases, each drive may be connected to bus 18 through one or more data media interfaces. System memory 28 may include at least one program product having a set (eg, at least one) of program modules configured to perform the functions of various embodiments of the present invention.

A program/utility 40 having a set (at least one) of program modules 42, which may be stored, for example, in system memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other Program modules and program data, each or some combination of these examples may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods of the described embodiments of the present invention.

The computer device 12 may also communicate with one or more external devices 14 (eg, keyboard, pointing device, display 24, etc.), may also communicate with one or more devices that enable the sending device to interact with the computer device 12, and/or Communicate with any device (eg, network card, modem, etc.) that enables the computer device 12 to communicate with one or more other computing devices. Such communication may take place through an input/output (I/O) interface 22 . In addition, the computer device 12 can also communicate with one or more networks (eg, Local Area Network (LAN), Wide Area Network (WAN)) through the network adapter 20. As shown, the network adapter 20 communicates with the computer through the bus 18. communicates with other modules of device 12. It should be appreciated that, although not shown in Figure 4, other hardware and/or software modules may be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disks Drive arrays, (Redundant Arrays of Inexpensive Disks, RAID) systems, tape drives and data backup storage systems.

The processing unit 16 executes various functional applications and data processing by running the programs stored in the system memory 28, for example, implementing a communication data scheduling processing method provided by any embodiment of the present invention.

Embodiment 5

Embodiment 5 of the present invention provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the communication data scheduling and processing methods provided by all the inventive embodiments of this application:

That is, when the program is executed by the processor, it is realized: in the physical control channel, the target sending device information of at least one target sending device is acquired; according to the information of each target sending device, the data processing corresponding to each target sending device is determined order; in the physical shared channel, acquire the transmission data corresponding to each target sending device; and perform scheduling processing on the transmission data corresponding to each target sending device according to the data processing order.

The computer storage medium in the embodiments of the present invention may adopt any combination of one or more computer-readable mediums. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. More specific examples (non-exhaustive list) of computer readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks, RAM, Read Only Memory (ROM), erasable Erasable Programmable Read Only Memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

A computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .

Program code embodied on a computer readable medium may be transmitted using any suitable medium including, but not limited to, wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations of the present invention may be written in one or more programming languages, including object-oriented programming languages—such as Java, Smalltalk, C++, but also conventional Procedural programming language - such as the "C" language or similar programming language. The program code may execute entirely on the sending device computer, partly on the sending device computer, as a stand-alone software package, partly on the sending device computer and partly on a remote computer, or entirely on the remote computer or server implement. Where a remote computer is involved, the remote computer may be connected to the sending device computer through any kind of network, including a LAN or WAN, or may be connected to an external computer (eg, using an Internet service provider to connect through the Internet).

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention. The scope is determined by the scope of the appended claims.

Claims (10)

1. A method for scheduling processing of communication data, comprising:

acquiring target sending equipment information of at least one target sending equipment in a physical control channel;

determining a data processing sequence corresponding to each target sending device according to the information of each target sending device;

acquiring transmission data corresponding to each target sending device in a physical shared channel;

and scheduling the transmission data corresponding to the target sending equipment according to the data processing sequence.

2. The method of claim 1, wherein the determining a data processing order corresponding to each of the target transmitting devices according to the information of each of the target transmitting devices comprises:

dividing each target sending device into a sending device to be combined for retransmission and a sending device to be combined for non-retransmission according to retransmission identification information included in each target sending device information and a primary translation result type corresponding to each sending device, and determining a data processing sequence corresponding to each target sending device, wherein the data processing sequence of the sending device to be combined for retransmission is before the data processing sequence of the sending device to be combined for non-retransmission;

in the target sending devices of the same type, determining a data processing order corresponding to each target sending device of the same type according to the scheduling indication priority included in the information of each target sending device, wherein the data processing order of the sending device with the higher priority is prior to the data processing order of the sending device with the lower priority;

and in the target sending devices with the same priority, determining a data processing order corresponding to each target sending device with the same priority according to the signal-to-noise ratio included by the information of each target sending device, wherein the data processing order of the sending device with the high signal-to-noise ratio is before the data processing order of the sending device with the low signal-to-noise ratio.

3. The method of claim 1, wherein obtaining target sending device information of at least one target sending device in a physical control channel comprises:

acquiring sending equipment information of at least one sending equipment in a physical control channel;

determining a bad point sending device in each sending device according to the sending device information of each sending device, and rejecting the bad point sending device;

and determining the rest sending devices as target sending devices, and acquiring target sending device information of each target sending device.

4. The method of claim 3, wherein determining a bad point transmitting device among the transmitting devices according to the information of the target transmitting devices comprises:

determining mapping relation of the bad point sending equipment matched with the information of each target sending equipment according to version information, transmission times and transmission formats of a physical layer protocol included in the information of each target sending equipment;

and determining the bad point sending equipment in each sending equipment according to the modulation and coding strategy identification included by each target sending equipment information and the mapping relation of the matched bad point sending equipment.

5. The method of claim 4, wherein the bad point sending device mapping relationship comprises: a dead pixel mapping table and a dead pixel identification range;

determining, in each of the sending devices, a bad point sending device according to a modulation and coding policy identifier included in the information of each of the target sending devices and the mapping relationship between the matched bad point sending devices, including:

in a dead pixel mapping table matched with the information of each target sending device, according to a modulation and coding strategy identifier included in the information of each target sending device, inquiring dead pixel resource block identifier information corresponding to the information of each target sending device;

if the resource block identification information included in the sending equipment information of the sending equipment is determined to be matched with the corresponding bad point resource block identification information, determining that the sending equipment is bad point sending equipment;

acquiring modulation and coding strategy identifications corresponding to the information of each target sending device in a dead pixel identification range matched with the information of each target sending device;

and if the modulation and coding strategy identification included in the sending equipment information of the sending equipment is determined to be matched with the corresponding bad point identification range, determining that the sending equipment is the bad point sending equipment.

6. The method of claim 1, wherein obtaining target sending device information of at least one target sending device in a physical control channel comprises:

performing channel estimation, demodulation and decoding on data corresponding to a physical control channel in effective symbol data of a subframe;

and if the decoding result is correct, acquiring target sending equipment information of at least one target sending equipment extracted from the correct decoding result.

7. The method of claim 1, wherein the target sending device comprises an in-vehicle networking node comprising a traffic light device, a vehicle device, or a user device.

8. A communication data scheduling processing apparatus, comprising:

a sending device information obtaining module, configured to obtain, in a physical control channel, target sending device information of at least one target sending device;

a processing order determining module, configured to determine, according to the information of each target sending device, a data processing order corresponding to each target sending device;

a transmission data obtaining module, configured to obtain, in a physical shared channel, transmission data corresponding to each target sending device;

and the scheduling processing module is used for respectively scheduling the transmission data corresponding to each target sending device according to each data processing order.

9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the communication data scheduling processing method according to any of claims 1-7 when executing the program.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a communication data scheduling processing method according to any one of claims 1 to 7.

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