CN108988996B - Data sending and receiving processing method and device for physical downlink control channel - Google Patents

Abstract

Embodiments of the present invention disclose a method and device for processing data transmission and reception of a physical downlink control channel. The method includes: acquiring a data transmission period of a physical downlink control channel PDCCH and the repetition times of the PDCCH, and according to the repetition times, Calculate the first frame duration of the PDCCH; calculate the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period; combine the target PDCCH data of the first frame duration, The target PDSCH data of the second frame duration, the data transmission period and the number of repetitions are sent to the terminal. The embodiment of the present invention calculates and distinguishes the PDCCH data and PDSCH data in the data frame by canceling the PCFICH channel and the PHICH channel in the downlink channel of the base station, and by setting the data transmission period and repetition times of the PDCCH, thereby increasing the actual data in the downlink channel of the base station. bit, which improves the utilization rate of the downlink channel of the base station.

Description

A method and device for data transmission and reception processing of physical downlink control channel

technical field

Embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and device for processing data transmission and reception of a physical downlink control channel.

Background technique

With the rapid development of wireless communication technology, the wireless communication system's support for power services and its own industrialization degree have been greatly improved. More and more power communication services can be carried by wireless communication technology.

At present, the main feasible technical solutions for power wireless broadband transmission are: TD-LTE230 and TD-LTE1800. TD-LTE230 is an innovative wireless communication system based on TD-LTE (Time Division Long Term) technology, combined with advanced technologies such as spectrum sensing, carrier aggregation, interference demodulation, software radio, etc., using discrete spectrum resources in the 230MHz frequency band of the power industry. . The business types supported by LTE230 include voice business, video business, load control business, data collection business and distribution network automation business. According to the in-depth customization of power business communication requirements, the public network TD-LTE technology system, communication protocol and networking structure are optimized to improve terminal capacity and real-time service.

The demodulation performance of the existing LTE230 cell edge UEs is not high and cannot be networked on the same frequency. Therefore, as shown in Figure 1, PCFICH (Physical Control Format Indicator Channel, Physical Control Format Indicator Channel) is used in the downlink channel to indicate the downlink part of the radio frame Whether it is PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) or PDCCH (Physical Downlink Control Channel Physical Downlink Control Channel); at the same time, in order to receive feedback from uplink transmission, PHICH (Physical Hybrid ARQ Indicator Channel, Physical Hybrid Automatic Retransmission Indicator Channel) is used. ) for automatic retransmission indication.

In the process of implementing the embodiment of the present invention, the inventor found that the PCFICH in the downlink channel of the existing base station occupies 2 downlink symbols to indicate whether the downlink part of the radio frame is PDSCH or PDCCH, and uses the PHICH of 2 symbols for automatic retransmission indication, This results in waste of downlink channels of the base station.

SUMMARY OF THE INVENTION

Due to the above problems existing in the existing methods, the embodiments of the present invention provide a method and apparatus for processing data transmission and reception of a physical downlink control channel.

In a first aspect, an embodiment of the present invention provides a method for data transmission and processing of a physical downlink control channel, including:

Obtain the data transmission period of the physical downlink control channel PDCCH and the repetition times of the PDCCH, and calculate the first frame duration of the PDCCH according to the repetition times;

According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH;

Send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data transmission period and the number of repetitions to the terminal.

Optionally, the acquiring the data transmission period of the physical downlink control channel PDCCH specifically includes:

According to the maximum repetition times of the PDCCH and the period factor, the data transmission period of the PDCCH is calculated.

Optionally, the method further includes:

Acquire the starting position offset parameter of the PDCCH, and send the starting position offset parameter to the terminal.

In a second aspect, an embodiment of the present invention provides a method for receiving and processing data, including:

Receive the data frame, data transmission period and repetition times sent by the base station;

determining the first frame duration of the physical downlink control channel PDCCH according to the number of repetitions;

According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH;

The data frame is parsed according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

Optionally, before the data frame is parsed according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data, the method further includes:

receiving the start position offset parameter of the PDCCH sent by the base station;

Correspondingly, analyzing the data frame according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data, specifically including:

The data frame is parsed according to the start position offset parameter, the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

In a third aspect, an embodiment of the present invention further provides a data transmission and processing device for a physical downlink control channel, including:

a first frame duration calculation module, configured to acquire the data transmission period of the physical downlink control channel PDCCH and the repetition times of the PDCCH, and calculate the first frame duration of the PDCCH according to the repetition times;

The second frame duration calculation module is configured to calculate and obtain the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period;

A data sending module, configured to send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data transmission period and the repetition times to the terminal.

Optionally, the first frame duration calculation module is specifically configured to calculate the data transmission period of the PDCCH according to the maximum repetition times and the period factor of the PDCCH.

Optionally, the device further includes:

An offset parameter sending module, configured to acquire the starting position offset parameter of the PDCCH, and send the starting position offset parameter to the terminal.

In a fourth aspect, an embodiment of the present invention further provides a data receiving and processing device, including:

The data receiving module is used to receive the data frame, data transmission period and repetition times sent by the base station;

a first frame duration determination module, configured to determine the first frame duration of the physical downlink control channel PDCCH according to the number of repetitions;

The second frame duration determination module is configured to calculate and obtain the second frame duration of the PDSCH according to the first frame duration and the data transmission period;

A data frame parsing module, configured to parse the data frame according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

Optionally, the device further includes:

an offset parameter receiving module, configured to receive the starting position offset parameter of the PDCCH sent by the base station;

Correspondingly, the data frame parsing module is specifically configured to parse the data frame according to the starting position offset parameter, the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH. data.

It can be seen from the above technical solutions that the embodiment of the present invention calculates and distinguishes the PDCCH data and PDSCH data in the data frame by canceling the PCFICH channel and the PHICH channel in the downlink channel of the base station, and by setting the data transmission period and repetition times of the PDCCH, thereby increasing the base station. The actual data bits in the downlink channel improve the utilization rate of the downlink channel of the base station.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts.

1 is a schematic structural diagram of the occupancy situation of each channel in the downlink channel of a base station provided by the prior art;

2 is a schematic flowchart of a method for processing data transmission of a physical downlink control channel according to an embodiment of the present invention;

3 is a schematic structural diagram of a single subband frame structure provided by the prior art;

4 is a schematic diagram of the number of repetitions of the PDCCH and the transmission of PDCCHDCI data according to an embodiment of the present invention;

5 is a schematic flowchart of a data receiving and processing method provided by another embodiment of the present invention;

6 is a schematic diagram of a search cycle of CSS-RA provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a search period of UE0-USS according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of distribution of a subband PDCCH search space according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an apparatus for data transmission and processing of a physical downlink control channel according to an embodiment of the present invention;

10 is a schematic structural diagram of a data receiving and processing apparatus according to another embodiment of the present invention;

FIG. 11 is a logical block diagram of a first electronic device according to an embodiment of the present invention;

FIG. 12 is a logical block diagram of a second electronic device according to another embodiment of the present invention.

Detailed ways

The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

FIG. 2 shows a schematic flowchart of a data transmission processing method for a physical downlink control channel provided by this embodiment, including:

S201. Acquire the data transmission period of the physical downlink control channel PDCCH and the number of repetitions of the PDCCH, and calculate the first frame duration of the PDCCH according to the number of repetitions.

The PDCCH (Physical Downlink Control Channel) is a channel indicating the transmission format, resource allocation and repetition times information related to PDSCH (Physical Downlink Shared Channel) or PUSCH (Physical Uplink Shared Channel).

The PDSCH (Physical Downlink Shared Channel) and the PUSCH (Physical Uplink Shared Channel) are channels for transmitting data blocks.

The data transmission period is a period in which the downlink channel of the base station is used to transmit PDCCH data or PDSCH data. When the base station sends data to the same terminal, the data transmission period is generally unchanged. In each period, a fixed part of PDCCH data is sent, and the other part is PDSCH data; when the base station sends data to different terminals, its data transmission period can be different.

The number of repetitions is the number of times the PDCCH data is repeatedly sent during the sending process, and the data blocks received each time are combined into complete data. For example, if the number of repetitions of the PDCCH data is 4, the PDCCH data needs to be divided into 4 data blocks and sent in 4 times.

The first frame duration is a frame duration used to represent PDCCH data in one data transmission cycle.

S202. Calculate and obtain the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period.

The second frame duration is a frame duration used to represent PDSCH data in one data transmission cycle.

Specifically, the sum of the first frame duration and the second frame duration is a data transmission period.

S203. Send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data transmission period and the repetition times to the terminal.

Specifically, the data transmission period and repetition times of each terminal may be different or the same. For example, parameters such as different repetition times and data transmission periods may be set for each UE (terminal). These parameters are configured through the RRC connection reconfiguration message, and these parameters can be changed during the continuous process of the service. The sending period and repetition times of the same terminal in the data transmission process may be different or the same. If the transmission cycle and repetition times of the same terminal remain unchanged, it is not necessary to send data in the process of sending data to the terminal; in the process of receiving data, if the terminal does not receive the transmission cycle and repetition times, it will use the previously received data. Sending period and number of repetitions.

For example, the structure of a single subband frame in the prior art is shown in Figure 3: there are 40 authorized frequency points in total, distributed in discrete and unequal intervals, 15 frequency points in the low frequency band are called the first cluster, and 10 frequency points in the middle frequency band The frequency points are called the second cluster, and the 15 frequency points in the high frequency band are called the third cluster. Each cluster selects the middle frequency point as the synchronization subband, the downlink resources are used for sending broadcast signals, cell search and synchronization, and the corresponding uplink resources are used for random access. The remaining 37 frequency points are used as service subbands. Every 40 radio frames is a cycle, and one frame is used as a synchronization frame. PN sequences are sent on all service subbands to maintain downlink synchronization, and the remaining 39 radio frames are used to transmit services. data (PCFICH and PHICH data).

The downlink resources are 9 symbols of subframe 0 and the first 4 symbols of subframe 1, a total of 13 symbols. The uplink resources are the last four symbols of subframe 1 and subframe 2, subframe 3, and subframe 4.

The channels on the service subband are: downlink channels PCFICH, PHICH, PDCCH, PDSCH; uplink channels SR, PUCCH, PUSCH. PCFICH occupies the first two symbols of subframe 0; PHICH occupies the third and fourth symbols of subframe 0, as shown in Figure 1; the remaining resources are used to transmit PDCCH or PDSCH, which is indicated by PCFICH. SR occupies the last 4 symbols of subframe 1; PUCCH occupies the first 4 symbols of subframe 2; PUSCH occupies the last 5 symbols of subframe 2 and subframes 3 and 4.

The PCFICH channel is used to indicate whether the downlink part of the radio frame is PDSCH or PDCCH in the ordinary subframe, and it is used to indicate whether it is SI grant or DRX in the DRX frame; the PHICH channel uplink transmits the feedback of HARQ ACK and NACK; the PDSCH channel is used for data transmission , indicated by PCFICH; PDCCH channel is used for DCI transmission, indicated by PCFICH.

In this embodiment, the PCFICH and PHICH channels are cancelled, the downlink symbols of the traffic channel are effectively used, and the same data frame processing rules are adopted on the base station and terminal side, which can increase the demodulation performance of each channel to support intra-frequency networking.

In this embodiment, the PCFICH channel and the PHICH channel in the downlink channel of the base station are cancelled, and the data transmission period and repetition times of the PDCCH are set to calculate and distinguish the PDCCH data and PDSCH data in the data frame, and the actual data bits in the downlink channel of the base station are increased. , which improves the utilization rate of the downlink channel of the base station.

Further, on the basis of the above method embodiments, the acquisition of the data transmission period of the physical downlink control channel PDCCH in S201 specifically includes:

According to the maximum repetition times of the PDCCH and the period factor, the data transmission period of the PDCCH is calculated.

The maximum number of repetitions of the PDCCH is the maximum number of repetitions of the PDCCH, which is represented by PDCCH-NumRepetitions, and takes the frame (25ms) as the unit; 2048}.

The period factor is the ratio of the PDCCH period to the maximum number of repetitions, and is represented by PDCCH-StartF. The data transmission period of the PDCCH is the product of PDCCH-NumRepetitions and PDCCH-StartF; the value is {2, 4, 8, 16, 32, 48, 64}.

The search space of the PDCCH includes three types: common search space-RA, common search space-Paging, and UE-specific search space. The above three parameters have different values in different spaces; among them:

Common Search Space-RA (CSS-RA) includes PDCCH-NumRepetitions-RA (obtained by pdcch-NumRepetitionsFactor-RA*prach-NumRepetitions) and PDCCH-StartF-RA.

Common Search Space-Paging (CSS-Paging) includes PDCCH-NumRepetitions-Paging and paging-Periodicity.

The UE-specific search space (USS) includes PDCCH-NumRepetitions-USS, PDCCH-StartF-USS and PDCCH-Offset-USS.

The UE (terminal) does not need to monitor USS and CSS at the same time, nor does it need to monitor CSS-RA and CSS-Paging at the same time.

Calculate the data transmission period of the PDCCH T=PDCCH-NumRepetitions×PDCCH-StartF.

Further, on the basis of the above method embodiments, the method further includes:

S204: Acquire the starting position offset parameter of the PDCCH, and send the starting position offset parameter to the terminal.

Wherein, the starting position offset parameter is the offset of the starting position of PDCCH data in a data transmission period, which is represented by PDCCH-Offset; the value is {0, 1/8, 1/4, 3 /8}.

For example, within a data transmission period, starting from the data bit of the offset parameter from the start position, the data of the first frame duration is the target PDCCH data, and the data of the subsequent second frame duration is the target PDSCH data.

Calculate the starting position offset parameter of the PDCCH search space: Nf mod T=PDCCH-Offset×T, where Nf is the radio frame number (SFN).

When the number of PDCCH repetitions is 1, 2, 4, and 8, the PDCCH DCI is sent in frames as shown in Figure 4; when the number of PDCCH repetitions is 16 and above, the PDCCH DCI is divided into 8 frames, and 8 frames are used as a Cycle, which is sent repeatedly. As shown in Figure 4.

FIG. 5 shows a schematic flowchart of a data receiving and processing method provided by this embodiment, including:

S501. Receive a data frame, a data transmission period, and a number of repetitions sent by a base station.

The data frame is a frame including PDCCH data and PDSCH data sent by the base station.

The data transmission period is a period in which the downlink channel of the base station is used to transmit PDCCH data or PDSCH data. When the base station sends data to the same terminal, the data transmission period is generally unchanged. In each period, a fixed part of PDCCH data is sent, and the other part is PDSCH data; when the base station sends data to different terminals, the data transmission period is generally different.

The number of repetitions is the number of times the PDCCH data or PDSCH data are repeatedly sent during the sending process, and the data blocks received each time are combined into complete data. For example, if the number of repetitions of the PDCCH data is 4, the PDCCH data needs to be divided into 4 data blocks and sent in 4 times.

S502. Determine the first frame duration of the physical downlink control channel PDCCH according to the repetition times.

The first frame duration is a frame duration used to represent PDCCH data in one data transmission cycle.

Specifically, the first frame duration of the PDCCH is obtained by multiplying the number of repetitions according to the preset length of each frame.

S503. Calculate and obtain the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period.

The second frame duration is a frame duration used to represent PDSCH data in one data transmission cycle.

Specifically, the data transmission period minus the first frame duration is the second frame duration.

S504. Parse the data frame according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

Specifically, in a data transmission cycle, the first half of the first frame duration is the target PDCCH data, and the second half of the second frame duration is the target PDSCH data.

In order to save power for the UE (terminal), the UE needs to be in the DRX state and monitor paging messages according to the paging cycle. Because even if the PDCCH period search of the UE is configured, each UE is different, some have long periods (edge users), and some have short periods (center users). .

The design of CSS-Paging can refer to CSS-RA. The starting position is Nf mod T=0. The parameters of the CSS-Paging search space are configured in the broadcast channel, and the period of Paging is configured in the broadcast message.

The parameters of the CSS-RA search space are obtained by multiplying the pdcch-NumRepetitionsFactor in the broadcast information by the prach-NumRepetitions in each PRACH configuration, as cell-level parameters.

According to the different RSRP calculated by the UE, there are at most three CSS-RA parameter configurations, which correspond to the PRACH configuration; the value of PDCCH-StartF-RA is set according to the length of the RRC message during random access, which can be configured by the network management and sent in the PBCH MIB. , the value is {2,4,8}, the default is 2.

Assuming that the value of PDCCH-NumRepetitions-RA is {8, 16, 32} according to different coverage levels, corresponding to 200ms, 400ms and 800ms, and the value of PDCCH-StartF-RA is 2, then the period of CSS-RA is: TRA=16/32 /64 (400ms/800ms/1600ms), starting search position: Nf mod T=0.

A schematic diagram of the CSS-RA search period of the first coverage level (TRA is 16) is shown in FIG. 6 , where the oblique line bits are PDCCH data, and the blank bits are PDSCH data.

The parameters of the USS are configured to the UE in the RRC connection reconfiguration message. The configuration of the USS initial value is configured as follows: the UE sends the number of repetitions indicated by the random access response RAR when sending Msg3. The number of sending times of Msg4 can be configured according to the number of repetitions configured by Msg3. In the subsequent access process, it can always be Sent according to the number of repetitions configured in Msg3. The value of PDCCH-StartF-USS can be set according to the service characteristics of the UE and the location of the UE (the number of repetitions of the service channel of the edge UE is more), so as to calculate how many frames in a PDCCH cycle can send service data.

It should be noted that the repetition times of the PDCCH, the data transmission period and the start position offset parameters of each terminal on the base station side are adjusted according to the measurement report of each terminal.

In this embodiment, the PCFICH channel and the PHICH channel in the downlink channel of the base station are cancelled, and the data transmission period and repetition times of the PDCCH are set to calculate and distinguish the PDCCH data and PDSCH data in the data frame, and the actual data bits in the downlink channel of the base station are increased. , the utilization rate of the downlink channel of the base station is improved, and the efficiency of the terminal receiving data frames is improved at the same time.

Further, on the basis of the above method embodiments, the method further includes:

S5034. Receive the start position offset parameter of the PDCCH sent by the base station.

Correspondingly, S504 specifically includes:

The data frame is parsed according to the start position offset parameter, the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

Wherein, the starting position offset parameter is the offset of the starting position of PDCCH data in one data transmission period, which is represented by PDCCH-Offset; the value is {0, 1/8, 1/4, 3 /8}.

For example, within a data transmission period, starting from the data bit of the offset parameter from the start position, the data of the first frame duration is the target PDCCH data, and the data of the subsequent second frame duration is the target PDSCH data.

The following is a specific example to calculate the search period and starting position:

The PDCCH-NumRepetitions-USS configured by UE0 is 8 (more edge), the PDCCH-StartF-USS is 2, and the PDCCH-Offset-USS is 0; then the data transmission period T=16, the starting position: Nf mod 16=0 (0 *16).

The PDCCH-NumRepetitions-USS configured by UE1 is 8 (more edge), the PDCCH-StartF-USS is 2, and the PDCCH-Offset-USS is 1/8; then the data transmission period T=16, the starting position: Nf mod 16=2 (1/8*16).

The PDCCH-NumRepetitions-USS configured by UE2 is 8 (more edge), the PDCCH-StartF-USS is 2, and the PDCCH-Offset-USS is 1/4; then the data transmission period T=16, the starting position: Nf mod 16=4 (1/4*16).

The PDCCH-NumRepetitions-USS configured by the UE3 is 4, the PDCCH-StartF-USS is 4, and the PDCCH-Offset-USS is 1/8; then the data transmission period T=16, the starting position: Nf mod 16=2(1/8 *16).

The PDCCH-NumRepetitions-USS configured by UE4 is 4, the PDCCH-StartF-USS is 4, and the PDCCH-Offset-USS is 1/4; then the data transmission period T=16, the starting position: Nf mod 16=4(1/4 *16).

Specifically, as shown in FIG. 7 , the slashed bits are PDCCH data, and the blank bits are PDSCH data.

When the data transmission period of each terminal is different, correspondingly, the data frame format in the downlink channel on the base station side is shown in Figure 8, wherein the data transmission period of UE0 is 8, the data transmission period of UE1 is 8, and the data transmission period of UE2 is 8. The data transmission period is 4, the data transmission period of UE3 is 8, and the data transmission period of UE4 is 4. The slashed bits are PDCCH data, and the blank bits are PDSCH data.

FIG. 9 shows a schematic structural diagram of an apparatus for data transmission and processing of a physical downlink control channel provided in this embodiment. The apparatus includes: a first frame duration calculation module 901 , a second frame duration calculation module 902 and a data transmission module 903 ,in:

The first frame duration calculation module 901 is configured to acquire the data transmission period of the physical downlink control channel PDCCH and the repetition times of the PDCCH, and calculate the first frame duration of the PDCCH according to the repetition times;

The second frame duration calculation module 902 is configured to calculate and obtain the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period;

The data sending module 903 is configured to send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data transmission period and the number of repetitions to the terminal.

Specifically, the first frame duration calculation module 901 obtains the data transmission period of the physical downlink control channel PDCCH, and calculates the first frame duration of the PDCCH according to the repetition times of the PDCCH; the second frame duration calculates The module 902 calculates and obtains the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period; the data transmission module 903 converts the target PDCCH data of the first frame duration, the first frame duration The target PDSCH data with a duration of two frames, the data sending period and the repetition times are sent to the terminal.

In this embodiment, by canceling the PCFICH channel and the PHICH channel in the downlink channel of the base station, and by setting the data transmission period and repetition times of the PDCCH, the PDCCH data and PDSCH data in the data frame are calculated and distinguished, and the actual data bits in the downlink channel of the base station are increased. , which improves the utilization rate of the downlink channel of the base station.

Further, on the basis of the above apparatus embodiment, the first frame duration calculation module 901 is specifically configured to calculate the data transmission period of the PDCCH according to the maximum number of repetitions and the period factor of the PDCCH.

Further, on the basis of the above device embodiments, the device further includes:

An offset parameter sending module, configured to acquire the starting position offset parameter of the PDCCH, and send the starting position offset parameter to the terminal.

The apparatus for sending and processing data for a physical downlink control channel described in this embodiment can be used to execute the corresponding method embodiments described above, and the principles and technical effects thereof are similar, and details are not described herein again.

FIG. 10 shows a schematic structural diagram of a data receiving and processing apparatus provided in this embodiment, and the apparatus includes: a data receiving module 1001, a first frame duration determining module 1002, a second frame duration determining module 1003, and a data frame parsing module 1004, of which:

The data receiving module 1001 is used to receive the data frame, data transmission period and repetition times sent by the base station;

The first frame duration determining module 1002 is configured to determine the first frame duration of the physical downlink control channel PDCCH according to the number of repetitions;

The second frame duration determination module 1003 is configured to calculate and obtain the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period;

The data frame parsing module 1004 is configured to parse the data frame according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

Specifically, the data receiving module 1001 receives the data frame, the data transmission period and the number of repetitions sent by the base station; the first frame duration determining module 1002 determines the duration of the first frame of the physical downlink control channel PDCCH according to the number of repetitions; The second frame duration determining module 1003 calculates and obtains the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period; the data frame parsing module 1004 obtains the second frame duration according to the first frame duration The data frame is parsed with the second frame duration to obtain target PDCCH data and target PDSCH data.

In this embodiment, by canceling the PCFICH channel and the PHICH channel in the downlink channel of the base station, and by setting the data transmission period and repetition times of the PDCCH, the PDCCH data and PDSCH data in the data frame are calculated and distinguished, and the actual data bits in the downlink channel of the base station are increased. , the utilization rate of the downlink channel of the base station is improved, and the efficiency of the terminal receiving data frames is improved at the same time.

Further, on the basis of the above device embodiments, the device further includes:

an offset parameter receiving module, configured to receive the starting position offset parameter of the PDCCH sent by the base station;

Correspondingly, the data frame parsing module 1004 is specifically configured to parse the data frame according to the starting position offset parameter, the first frame duration and the second frame duration to obtain the target PDCCH data and the target PDCCH data. PDSCH data.

The data receiving and processing apparatus described in this embodiment can be used to execute the corresponding method embodiments described above, and the principles and technical effects thereof are similar, and details are not described herein again.

11 , the first electronic device includes: a processor (processor) 1101, a memory (memory) 1102, and a bus 1103;

in,

The processor 1101 and the memory 1102 communicate with each other through the bus 1103;

The processor 1101 is configured to call program instructions in the memory 1102 to execute the methods provided by the above method embodiments, for example, including:

Obtain the data transmission period of the physical downlink control channel PDCCH, and calculate the first frame duration of the PDCCH according to the repetition times of the PDCCH;

According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH;

Send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data transmission period and the number of repetitions to the terminal.

This embodiment provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the methods provided by the foregoing method embodiments, for example, including :

Obtain the data transmission period of the physical downlink control channel PDCCH, and calculate the first frame duration of the PDCCH according to the repetition times of the PDCCH;

According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH;

Send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data transmission period and the number of repetitions to the terminal.

12, the second electronic device includes: a processor (processor) 1201, a memory (memory) 1202, and a bus 1203;

in,

The processor 1201 and the memory 1202 communicate with each other through the bus 1203;

The processor 1201 is configured to call program instructions in the memory 1202 to execute the methods provided by the above method embodiments, for example, including:

Receive the data frame, data transmission period and repetition times sent by the base station;

determining the first frame duration of the physical downlink control channel PDCCH according to the number of repetitions;

According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH;

The data frame is parsed according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

This embodiment provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the methods provided by the foregoing method embodiments, for example, including :

Receive the data frame, data transmission period and repetition times sent by the base station;

determining the first frame duration of the physical downlink control channel PDCCH according to the number of repetitions;

According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH;

The data frame is parsed according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic A disc, an optical disc, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments or some parts of the embodiments.

It should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be used for The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A data transmission processing method for a physical downlink control channel, comprising: Obtain the data transmission period of the physical downlink control channel PDCCH and the repetition times of the PDCCH, and calculate the first frame duration of the PDCCH according to the repetition times; Wherein, the first frame duration of the PDCCH is the frame duration used to represent the PDCCH data in one data transmission cycle; Wherein, the number of repetitions is the number of times the PDCCH data is repeatedly sent during the sending process, and the data blocks received each time are combined into complete data; According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH; Wherein, the second frame duration of the PDSCH is the frame duration used to represent PDSCH data in one data transmission cycle; Wherein, according to the first frame duration and the data transmission period, the step of calculating and obtaining the second frame duration of the physical downlink shared channel PDSCH is specifically: The data transmission period is subtracted from the first frame duration to obtain the second frame duration of the PDSCH of the physical downlink shared channel; Send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data transmission period and the number of repetitions to the terminal. 2. The method according to claim 1, wherein the acquiring the data transmission period of the physical downlink control channel (PDCCH) specifically comprises: According to the maximum repetition times of the PDCCH and the period factor, the data transmission period of the PDCCH is calculated. 3. The method according to claim 1, wherein the method further comprises: Acquire the starting position offset parameter of the PDCCH, and send the starting position offset parameter to the terminal. 4. a data receiving and processing method, is characterized in that, comprises: Receive the data frame, data transmission period and repetition times sent by the base station; determining the first frame duration of the physical downlink control channel PDCCH according to the number of repetitions; Wherein, the first frame duration of the PDCCH is the frame duration used to represent the PDCCH data in one data transmission cycle; Wherein, the number of repetitions is the number of times the PDCCH data is repeatedly sent during the sending process, and the data blocks received each time are combined into complete data; According to the first frame duration and the data transmission period, calculate and obtain the second frame duration of the physical downlink shared channel PDSCH; Wherein, the second frame duration of the PDSCH is the frame duration used to represent PDSCH data in one data transmission cycle; Wherein, according to the first frame duration and the data transmission period, the step of calculating and obtaining the second frame duration of the physical downlink shared channel PDSCH is specifically: The data transmission period is subtracted from the first frame duration to obtain the second frame duration of the PDSCH of the physical downlink shared channel; The data frame is parsed according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data. 5. The method according to claim 4, wherein before the data frame is parsed according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data, further include: receiving the start position offset parameter of the PDCCH sent by the base station; Correspondingly, analyzing the data frame according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data, specifically including: The data frame is parsed according to the start position offset parameter, the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data. 6. A data transmission and processing device for a physical downlink control channel, comprising: a first frame duration calculation module, configured to acquire the data transmission period of the physical downlink control channel PDCCH and the repetition times of the PDCCH, and calculate the first frame duration of the PDCCH according to the repetition times; Wherein, the first frame duration of the PDCCH is the frame duration used to represent the PDCCH data in one data transmission cycle; Wherein, the number of repetitions is the number of times the PDCCH data is repeatedly sent during the sending process, and the data blocks received each time are combined into complete data; The second frame duration calculation module is configured to calculate and obtain the second frame duration of the physical downlink shared channel PDSCH according to the first frame duration and the data transmission period; Wherein, the second frame duration of the PDSCH is the frame duration used to represent PDSCH data in one data transmission cycle; Among them, the second frame duration calculation module is specifically used for: The data transmission period is subtracted from the first frame duration to obtain the second frame duration of the PDSCH of the physical downlink shared channel; A data sending module, configured to send the target PDCCH data of the first frame duration, the target PDSCH data of the second frame duration, the data sending period and the number of repetitions to the terminal. 7 . The apparatus according to claim 6 , wherein the first frame duration calculation module is specifically configured to calculate the data transmission period of the PDCCH according to the maximum repetition times and the period factor of the PDCCH. 8 . 8. The apparatus of claim 6, wherein the apparatus further comprises: An offset parameter sending module, configured to acquire the starting position offset parameter of the PDCCH, and send the starting position offset parameter to the terminal. 9. A data receiving and processing device, comprising: The data receiving module is used to receive the data frame, data transmission period and repetition times sent by the base station; a first frame duration determination module, configured to determine the first frame duration of the physical downlink control channel PDCCH according to the number of repetitions; Wherein, the first frame duration of the PDCCH is the frame duration used to represent the PDCCH data in one data transmission cycle; Wherein, the number of repetitions is the number of times the PDCCH data is repeatedly sent during the sending process, and the data blocks received each time are combined into complete data; The second frame duration determination module is configured to calculate and obtain the second frame duration of the PDSCH according to the first frame duration and the data transmission period; Wherein, the second frame duration of the PDSCH is the frame duration used to represent PDSCH data in a data transmission cycle; Among them, the second frame duration determination module is specifically used for: The data transmission cycle is subtracted from the first frame duration to obtain the second frame duration of the PDSCH of the physical downlink shared channel; A data frame parsing module, configured to parse the data frame according to the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH data. 10. The apparatus of claim 9, wherein the apparatus further comprises: an offset parameter receiving module, configured to receive the starting position offset parameter of the PDCCH sent by the base station; Correspondingly, the data frame parsing module is specifically configured to parse the data frame according to the starting position offset parameter, the first frame duration and the second frame duration to obtain target PDCCH data and target PDSCH. data.

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