CN103648175B - Many subframe scheduling methods, system and equipment - Google Patents

Abstract

The invention discloses a multi-subframe scheduling method, system and equipment. Wherein, the multi-subframe scheduling method includes: sending to the terminal a continuous scheduling instruction for multi-subframe scheduling, a HAR process number corresponding to the first scheduling subframe, and scheduling configuration parameters; according to the first scheduling subframe The hybrid automatic repeat process number corresponding to the frame and the continuous scheduling instruction obtain the hybrid automatic repeat process process number corresponding to the current scheduling subframe, and use the scheduling configuration parameters to perform the corresponding hybrid automatic repeat process in the current scheduling subframe Number of data packet transmission; each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling adopts the scheduling configuration parameters. The embodiment of the present invention can implement multi-subframe scheduling by issuing the hybrid automatic retransmission process number and continuous scheduling indication of each currently scheduled subframe, saving system control signaling overhead and improving system spectrum efficiency.

Description

Multi-subframe scheduling method, system and device

technical field

The embodiments of the present invention relate to the technical field, and in particular to a multi-subframe scheduling method, system and device.

Background technique

Evolved-UMTS Terrestrial Radio Access (Evolved-UMTS Terrestrial Radio Access) evolved in the existing 3rd Generation Partnership Project (abbreviation: 3GPP) Universal Mobile Telecommunications System (abbreviation: UMTS) The E-UTRA) system supports frequency division duplexing (Frequency Division Duplexing; FDD for short) and time division duplexing (Time Division Duplexing; TDD for short). In the Long Term Evolution (abbreviation: LTE) system, the terminal receives downlink data and sends upstream data. In the LTE FDD system, the maximum number of Hybrid Automatic Repeat Request (HARQ) processes is 8, the uplink adopts synchronous adaptive or non-adaptive retransmission, and the downlink adopts asynchronous adaptive retransmission. In the LTE TDD system, the maximum number of HARQ processes is 15.

Taking uplink data transmission as an example, the base station sends a corresponding uplink resource indication (UL grant) in the PDCCH resource in subframe 0 to perform uplink subframe scheduling. After receiving the PDCCH, the terminal obtains resource positions for uplink transmission and corresponding transmission configuration indication information. According to the timing relationship stipulated in the LTE protocol, the terminal can send the required uplink service data on the corresponding resources of the fourth subframe after receiving the subframe of the PDCCH. After the base station receives the data packet sent by the terminal, it can judge whether the data packet is correct through the CRC check. In the 4th subframe after the terminal sends the uplink data, the base station sends the indication information whether the data packet is correct or not. If the data packet is wrong, the base station simultaneously bears the retransmission UL grant of the retransmission data packet on the PDCCH channel of the subframe carrying the error information. The terminal sends new data according to the corresponding retransmission PDCCH information until it receives an acknowledgment (Acknowledgment; ACK) instruction from the base station, or gives up retransmitting existing data packets after reaching the maximum number of data retransmissions.

For downlink data transmission, after the terminal receives the data packet sent by the base station, it needs to feed back the corresponding uplink ACK or negative (Non-Acknowledgment; NAK for short) information. The serial number of the existing uplink ACK/NAK corresponds to the PDCCH transmission position of the terminal There is a mapping relationship between them. The terminal can send ACK/NAK information on corresponding uplink transmission resources according to the PDCCH transmission position.

In the existing LTE standard, each PDCCH schedules a subframe resource for data transmission. Since each newly transmitted data packet needs a PDCCH resource scheduling instruction, when the user channel is relatively stable, the configuration of data transmission is frequently changed. Information, will lead to large PDCCH signaling overhead of the system, and low spectrum efficiency.

Contents of the invention

The present invention provides a multi-subframe scheduling method, system and equipment, which are used to solve the defects of large system control signaling overhead and low spectrum efficiency in the prior art, reduce system control signaling overhead, and improve spectrum efficiency.

An embodiment of the present invention provides a multi-subframe scheduling method, including:

Send the continuous scheduling instruction of multi-subframe scheduling, the HAR process number corresponding to the first scheduling subframe, and scheduling configuration parameters to the terminal;

According to the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe and the continuous scheduling indication, obtain the hybrid automatic repeat transmission process number corresponding to the current scheduling subframe, and use the scheduling configuration parameters in the current scheduling subframe Carry out the data packet transmission of the corresponding hybrid automatic retransmission process number;

Each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling adopts the scheduling configuration parameters.

The embodiment of the present invention further provides a multi-subframe scheduling method, including:

Receive the continuous scheduling indication of multi-subframe scheduling sent by the base station, the HAR process number corresponding to the first scheduled subframe, and the scheduling configuration parameters;

According to the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe and the continuous scheduling indication, obtain the hybrid automatic repeat transmission process number corresponding to the current scheduling subframe, and use the scheduling configuration parameters in the current scheduling subframe Carry out the data packet transmission of the corresponding hybrid automatic retransmission process number;

Each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling adopts the scheduling configuration parameters.

The embodiment of the present invention also provides a base station, including:

The dispatching instruction sending module is used to send the continuous scheduling instruction of multi-subframe scheduling, the hybrid automatic retransmission process number corresponding to the first scheduling subframe, and the scheduling configuration parameters to the terminal;

A data packet transmission module, configured to obtain the HARQ process number corresponding to the current scheduling subframe according to the HARQ process number corresponding to the first scheduling subframe and the continuous scheduling indication, and adopt the scheduling configuration parameters Perform data packet transmission corresponding to the hybrid automatic repeat process number in the current scheduling subframe; each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling All adopt the scheduling configuration parameters.

The embodiment of the present invention also provides a terminal, including:

The scheduling indication receiving module is used to receive the continuous scheduling indication of multi-subframe scheduling sent by the base station, the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe, and the scheduling configuration parameters;

A data packet transmission module, configured to obtain the HARQ process number corresponding to the current scheduling subframe according to the HARQ process number corresponding to the first scheduling subframe and the continuous scheduling indication, and adopt the scheduling configuration parameters Perform data packet transmission corresponding to the hybrid automatic repeat process number in the current scheduling subframe; each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling All adopt the scheduling configuration parameters.

An embodiment of the present invention also provides a multi-subframe scheduling system, including: any one of the above-mentioned base stations and terminals.

The multi-subframe scheduling method, system and equipment provided by the present invention can realize multi-subframe scheduling by issuing the hybrid automatic retransmission process number and continuous scheduling indication of each currently scheduled subframe, saving system control signaling overhead and improve the spectral efficiency of the system.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the frame structure of FDD mode in the embodiment of the present invention;

FIG. 2 is a flow chart of the first embodiment of the multi-subframe scheduling method of the present invention;

FIG. 3 is a flowchart of a second embodiment of the multi-subframe scheduling method of the present invention;

FIG. 4a is a schematic diagram of a third embodiment of the multi-subframe scheduling method of the present invention;

FIG. 4b is a schematic diagram of extending the number of consecutively scheduled subframes in the third embodiment of the multi-subframe scheduling method of the present invention;

FIG. 5 is a schematic diagram of a fourth embodiment of a multi-subframe scheduling method according to the present invention;

FIG. 6 is a schematic diagram of a fifth embodiment of a multi-subframe scheduling method according to the present invention;

FIG. 7 is a schematic structural diagram of a first embodiment of a base station according to the present invention;

FIG. 8 is a schematic structural diagram of a second embodiment of a base station according to the present invention;

FIG. 9 is a schematic structural diagram of a first embodiment of a terminal according to the present invention;

FIG. 10 is a schematic structural diagram of a second embodiment of a terminal according to the present invention;

FIG. 11 is a schematic structural diagram of an embodiment of a multi-subframe scheduling system according to the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in FIG. 1 , it is the frame structure of the FDD mode in the embodiment of the present invention. Each wireless frame is 10 milliseconds long and consists of two half frames with a length of 5 milliseconds. Each radio frame is composed of 20 time slots with a length of 0.5 milliseconds, and every two time slots form a subframe, and the duration of the subframe is 1 millisecond.

FIG. 2 is a flow chart of the first embodiment of the multi-subframe scheduling method of the present invention. As shown in FIG. 2, the multi-subframe scheduling method includes:

Step 101, delivering to the terminal a continuous scheduling instruction for multi-subframe scheduling, a HAR process number corresponding to the first scheduled subframe, and scheduling configuration parameters;

Step 101 may specifically include the following situations:

Case 1: Send high-level signaling carrying continuous scheduling instructions to the terminal, the high-level signaling is used to notify the terminal of the activation or cancellation of multi-subframe scheduling, and send the terminal carrying scheduling configuration parameters and the first scheduling The physical downlink control channel of the hybrid automatic repeat transmission process number corresponding to the subframe.

The high-level signaling, such as high-level multi-subframe scheduling start signaling, can be used to inform the terminal of the multi-subframe scheduling start, and at the same time, the continuous scheduling of this scheduling is indicated, such as: the number of all consecutively scheduled subframes or the first scheduled subframe After the subframe, the number of consecutively scheduled subframes is sent to the terminal. Then, the scheduling configuration parameters and the hybrid automatic retransmission process number corresponding to the first scheduling subframe are delivered to the terminal through physical layer signaling such as the physical downlink control channel.

Case 2: A physical downlink control channel carrying the continuous scheduling indication, the HARQ process number corresponding to the first scheduling subframe, and scheduling configuration parameters is delivered to the terminal.

The base station can first send high-level signaling to the terminal, for example: high-level multi-subframe scheduling start signaling to inform the terminal of multi-subframe scheduling start, and then send the terminal to the terminal through physical layer signaling such as the physical downlink control channel PDCCH carrying scheduling configuration parameter, continuous scheduling indication, and the HARQ process number corresponding to the first scheduling subframe. Wherein, the PDCCH may include a downlink resource indication such as: DL scheduling, and may also include an uplink resource indication such as: UL grant. At this time, the method of carrying the number of subframes scheduled this time may specifically be: setting the continuous scheduling indication at the Among the newly added bits or reused bits of the physical downlink control channel, the reused bits are the redundancy version (Redundancy version; RV for short) field (field) or the uplink resource indication in the downlink resource indication of the physical downlink control channel The padding bit in . Using the direct transmission continuous scheduling indication in the PDCCH can reduce the signaling occupied by multi-subframe scheduling, which is conducive to saving signaling resources. Among them, using the reused bits of the PDCCH such as redundant version fields or padding bits can directly use the existing The PDCCH resource does not need to increase the cells of the PDCCH, which is convenient to set and further saves signaling resources.

Step 102: Obtain the HARQ process number corresponding to the current scheduling subframe according to the HARQ process number corresponding to the first scheduling subframe and the continuous scheduling indication, and use the scheduling configuration parameters in the current scheduling subframe Scheduling subframes for data packet transmission corresponding to the hybrid automatic repeat process number;

Wherein, each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling adopts the scheduling configuration parameters.

When the continuous scheduling indication includes the number of all continuously scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, according to the HAR process number corresponding to the first scheduled subframe and the The specific process of obtaining the HARQ process number corresponding to the current scheduling subframe according to the continuous scheduling instruction may include:

According to the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, select the minimum value from the currently available hybrid automatic repeat process number as the current scheduled subframe each time hybrid automatic retransmission process number; or

According to the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe and the HAR process number corresponding to the first scheduled subframe, in ascending order A currently available HARQ process number is selected as the HARQ process ID of the currently scheduled subframe.

Further, if the data packet carried by each scheduled subframe of the multi-subframe scheduling is a newly transmitted data packet, and if there is negative information in the feedback information obtained by transmitting the newly transmitted data packet, then deliver the The retransmission resource indication signaling corresponding to the hybrid automatic repeat transmission process number corresponding to the negative information, and sending to the terminal or receiving the hybrid automatic repeat transmission process number corresponding to the negative information sent by the terminal in the retransmission subframe corresponding to the retransmission resource indication signaling Automatically retransmit the retransmission packet of the process ID. Specifically, the base station can pre-set the retransmission delay, carry it in the retransmission resource indication signaling and send it to the terminal, or inform the terminal through other signaling that after the set retransmission delay, the base station schedules the retransmission resource indication The retransmission data packet corresponding to the HAR process number included in the negative information included in the signaling.

Further, if the newly transmitted data packet and the retransmitted data packet are scheduled in the same scheduling subframe, the retransmitted data packet is preferentially scheduled in the same scheduling subframe.

Furthermore, in each multi-subframe scheduling process, when scheduling the newly transmitted data packets of the HAR process number corresponding to the current scheduling subframe, errors may occur continuously, so that there are multiple negatives in the obtained feedback information information. At this time, if there is a plurality of continuous negative information in the feedback information obtained by transmitting the newly transmitted data packet, the retransmission resource indication signaling also includes all consecutive retransmission sub-items corresponding to the continuous multiple negative information The number of frames or the number of consecutive retransmission subframes after the first retransmission subframe.

When there is strong interference between the base station of this cell and the base stations of adjacent cells, the method of reserving resources can be used to reduce or avoid interference. The specific method is as follows:

Obtain the information of the adjacent cell from the interface between the base stations, the information of the adjacent cell includes the frequency domain position, transmission time and/or transmission power occupied by the physical downlink control channel or the physical uplink control channel allocated by the base station of the adjacent cell ;

According to the information of adjacent cells, obtain the information of the strong interfering cell whose interference level is greater than the set threshold, and according to the information of the strong interfering cell, coordinate and allocate the physical downlink control channel of the strong interfering cell and the own cell in different subframes First, it is determined that the base station of the local cell sends the scheduling subframe of the physical downlink control channel of multi-subframe scheduling to the terminal, thereby reserving time domain resources for the strong interference cell and the physical downlink control channel of the local cell; or the said strong The physical uplink control channels of the interfering cell and the own cell are coordinated and allocated on non-overlapping frequency bands, thereby reserving frequency domain resources for the physical uplink control channels of the strongly interfering cell and the own cell to feed back ACK or NAK information.

In addition, during semi-persistent scheduling, the semi-persistent subframe scheduling interval may be delivered to the terminal through high-layer signaling. The semi-persistent subframe scheduling intervals of 1, 2, 4, 5, and 8 can be added to the existing semi-persistent scheduling period. And notify the terminal of the corresponding semi-persistent transmission scheduling length for indication. During specific scheduling, the base station, according to the hybrid automatic repeat process number corresponding to the first scheduled subframe in each multi-subframe scheduling, the continuous scheduling indication and the static subframe scheduling interval, within each static subframe scheduling interval, the current subframe The newly transmitted data packets of the HAR process ID corresponding to the scheduling frame are scheduled.

In this embodiment, the base station sends scheduling configuration parameters, continuous scheduling instructions, and the hybrid automatic retransmission process number corresponding to the first scheduling subframe to the terminal, which can realize multi-subframe scheduling, save system control signaling overhead, and improve system performance. the spectral efficiency. Using single-subframe scheduling during retransmission can be better compatible with existing systems, and using multi-subframe scheduling during retransmission can further reduce system control signaling overhead and improve system performance. A single PDCCH is used for data scheduling of multiple subframes, resources can be reserved, and when there are adjacent strong interference cells, interactive information can be sent through the control channel between base stations, so that the control channels of strong interference cells can be avoided at the same time Data is scheduled to reduce interference between control channels.

FIG. 3 is a flowchart of a second embodiment of the multi-subframe scheduling method of the present invention. As shown in FIG. 3, the multi-subframe scheduling method includes:

Step 201, receiving the continuous scheduling indication of multi-subframe scheduling sent by the base station, the HARQ process number corresponding to the first scheduled subframe, and scheduling configuration parameters;

Step 201 may specifically include the following situations:

Case 1: Receive high-level signaling carrying continuous scheduling instructions sent by the base station, the high-level signaling is used to notify the terminal of the activation or cancellation of multi-subframe scheduling, and receive the scheduling configuration parameters and the first scheduling configuration sent by the base station The physical downlink control channel of the hybrid automatic repeat transmission process number corresponding to the subframe;

The terminal can obtain the indication of multi-subframe scheduling start from the high-level signaling of the base station, such as: multi-subframe scheduling start signaling, and at the same time obtain the continuous scheduling indication of this scheduling, such as: the number of all consecutively scheduled subframes or the first The number of consecutively scheduled subframes after the scheduled subframe. Then, the HAR process number corresponding to the first scheduling subframe is obtained through the physical layer signaling of the base station, for example, the physical downlink control channel.

Case 2: receiving the continuous scheduling instruction sent by the base station, the HAR process number corresponding to the first scheduling subframe, and the physical downlink control channel of scheduling configuration parameters.

The terminal can first obtain the indication of multi-subframe scheduling start from the high-level signaling of the base station such as: multi-subframe scheduling start signaling, and then obtain the scheduling configuration parameters, the first scheduling subframe from the physical layer signaling such as: physical downlink control channel PDCCH The HARQ process number and continuous scheduling indication corresponding to the frame. Among them, the PDCCH may include downlink resource indications such as: DL scheduling, and may also include uplink resource indications such as: UL grant, and the continuous scheduling indication may be obtained from newly added bits or reused bits of the PDCCH, wherein the reused bits may be downlink resource indications of the PDCCH The redundancy version field in or the padding bits in the uplink resource indication.

In addition, the terminal may determine whether this scheduling is single-subframe scheduling or multi-subframe scheduling according to the received downlink transmission control information format in the physical downlink control channel. For example: in downlink transmission, PDCCH adopts multiple downlink control information (DCI) formats for downlink scheduling transmission. When the multi-subframe scheduling transmission mode is enabled, part of the DCI format can be reserved for new transmission. Single subframe scheduling of data, other DCI formats are used for multi-subframe scheduling. The format of the PDCCH includes DCI format 0 for uplink scheduling; DCI formats 1, 1a, 1b, 1c, 2, 2a, 3 for downlink resource scheduling, and downlink resource indication for different transmission modes. Among them, DCI format 0 is used for uplink scheduling, including: resource scheduling indication field, new data indication field, demodulation reference signal (Demodulation Reference Signal; DMRS for short) cyclic shift indication field, modulation coding indication field, channel quality indication (Channel QualityIndicator (abbreviation: CQI) request field, cyclic redundancy check (Cyclical Redundancy Check; abbreviation: CRC) field, etc. Other DCI formats are used for downlink data scheduling indication, including: resource scheduling indication field, new data indication field, modulation coding indication field, new data indication field, power control indication field, CRC check field, HARQ process indication field, redundancy version indicating domain etc. In some DCI formats, there are 1 or 2 useless bits (bits), which are used as padding to meet the requirements of the code rate. It is assumed that reserved DCI1a is used for single-subframe scheduling, and other formats are used for multi-subframe scheduling. In uplink transmission, only DCI format 0 is used for uplink transmission scheduling. In LTE-A protocol, other uplink scheduling DCI formats can be added. According to different DCI formats of PDCCH, it can be determined whether single-subframe scheduling or multi-subframe scheduling is currently used. .

Step 202: Obtain the HARQ process number corresponding to the current scheduling subframe according to the HARQ process number corresponding to the first scheduling subframe and the continuous scheduling indication, and use the scheduling configuration parameters in the current scheduling subframe Scheduling subframes for data packet transmission corresponding to the hybrid automatic repeat process number;

Wherein, each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling adopts the scheduling configuration parameters.

If the continuous scheduling indication includes the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, after the base station sends the multi-subframe scheduling start signaling to the terminal, according to the first The HAR process number corresponding to each scheduling subframe and the continuous scheduling instruction to obtain the HAR process number corresponding to the current scheduling subframe may include the following examples:

Example 1. According to the number of all continuously scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, select the minimum value from the currently available hybrid automatic repeat process number as the current schedule each time The hybrid automatic retransmission process number of the subframe;

Example 2: According to the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe and the hybrid automatic retransmission process number corresponding to the first scheduled subframe, from small to large The currently available HARQ process numbers are sequentially selected as the HARQ process IDs of the currently scheduled subframe.

In this embodiment, the terminal receives the scheduling configuration parameters issued by the base station, the continuous scheduling indication, and the hybrid automatic retransmission process number corresponding to the first scheduling subframe, which can realize multi-subframe scheduling, save system control signaling overhead, and improve system performance. the spectral efficiency. Using single-subframe scheduling during retransmission can be better compatible with existing systems, and using multi-subframe scheduling during retransmission can further reduce system control signaling overhead and improve system performance. A single PDCCH is used for data scheduling of multiple subframes, resources can be reserved, and when there are adjacent strong interference cells, interactive information can be sent through the control channel between base stations, so that the control channels of strong interference cells can avoid being in the same Data is time-scheduled to reduce interference between control channels.

FIG. 4a is a schematic diagram of a third embodiment of the multi-subframe scheduling method of the present invention. The base station sends multi-subframe scheduling start signaling to the UE to instruct the terminal to start the data transmission mode of multi-subframe reception and transmission. The multi-subframe scheduling start signaling can be issued through high-level signaling (such as MAC or RLC layer signaling), and configure the number of subframes that need to be scheduled each time for newly transmitted data packets, such as: each multi-subframe scheduling The number of subframes that are continuously sent or received continuously. The range of this number can be greater than 1, but less than or equal to the value of the maximum number of HARQ processes in the system, such as 2, 3, 4, 5, 6, 7, 8, etc. . The base station can perform continuous subframe scheduling configuration or change the corresponding configuration of the current user according to the current transmission service type, the number of users in the cell, user channel conditions, etc., and notify the terminal of the corresponding configuration change information through high-level signaling. When the PDCCH is sent, corresponding resources are scheduled for data transmission.

In the embodiment of the present invention, the terminal can obtain the continuous scheduling indication from the received high-layer signaling or physical layer control signaling, and obtain the scheduling configuration parameters, the HARQ process of the first scheduling subframe from the physical layer control signaling number, corresponding to a separate positive/negative (ACK/NAK) feedback position and other information. As shown in Figure 4a, assuming that in each configured multi-subframe scheduling process, the number of subframes required for continuous scheduling is 4, at the first moment, that is, the first subframe #0, the terminal receives the The PDCCH for downlink transmission, which carries information such as the current HARQ process number, modulation and coding mode, resource indication and other information corresponding to the PDCCH corresponding to the first scheduled subframe, corresponding to subframe #0 and subframe #1 that can be continuously scheduled this time , subframe #2, and subframe #3. At this time, the first subframe #0 has a PDCCH delivered, but the subsequent three consecutively scheduled subframes #1, subframe #2, and subframe #3 have no PDCCH delivered. In downlink transmission, PDCCH carries downlink resource indication (DL scheduling), and DL scheduling carries the HARQ process number at the first moment of multi-subframe scheduling, for example: in subframe #0, the first subframe configured by the base station The HARQ process number of the frame is "0", and the UE can calculate the number of subframes without PDCCH delivery in the subsequent continuous scheduling of multi-subframe scheduling according to the time sequence, that is, the size of the subframe sequence number, according to the HARQ process number "0". The HARQ process number, for example: select the HARQ process number corresponding to each subsequent subframe from the currently available HARQ process number in ascending order; you can also select the minimum value from the currently available HARQ process number each time as no PDCCH The HARQ process ID issued by the subframe.

According to the timing relationship between the downlink resource indication and the downlink data transmission and uplink ACK/NAK information, the base station can transmit the newly transmitted data packet in the corresponding resource. There is a mapping relationship between the uplink ACK/NAK information and the resource location where the PDCCH is located. For a downlink data packet with a downlink resource indication, the terminal may send corresponding uplink ACK/NAK information on the corresponding uplink ACK/NAK resource according to the PDCCH. For subframes without downlink resource indication, high layer signaling may notify each UE of the specific channel position or channel range information for transmitting uplink ACK/NAK information. For example, when the UE is notified by high-layer signaling of new downlink data packets transmitted in subframe #1, subframe #2, and subframe #3, the corresponding uplink ACK/NAK information can be transmitted in uplink subframe #5, subframe #6, transmit in the uplink ACK/NAK resource indicated by subframe #7. These uplink ACK/NAK resources are reserved and notified by the base station for the terminal according to the number of users in the cell and transmission data packets. For example, the specific resource location corresponding to the uplink ACK/NAK resource can be notified through high-level signaling or physical layer signaling , resource number, corresponding resource group and other information, and then indicate the specific resource location or resource number of the corresponding uplink ACK/NAK information through other signaling.

As shown in Figure 4a, in the first multi-subframe scheduling, the base station sends the downlink resource indication (DL scheduling) of the HARQ process #0 carried by the PDCCH in subframe #0 to schedule the current subframe #0. For data, if the number of consecutively scheduled subframes is 4, the DL scheduling may also include HARQ process numbers of subframe #1, subframe #2, and subframe #3 and other configuration indications. If the interval at which the UE sends feedback information to the base station is 4 subframes, the UE returns the uplink ACK/NAK information of the HARQ process number corresponding to the downlink data to the base station. Wherein, for HARQ process #0 and process #1, the UE correctly transmits the fed back uplink ACK information to the base station in subframe #4 and subframe #5 respectively. For HARQ process #2 and process #3 where errors occur during transmission, the UE feeds back corresponding uplink NAK information to the base station in subframe #6 and subframe #7 respectively. Therefore, subframes of HARQ process #2 and process #3 need to be retransmitted. In order to facilitate the distinction, in FIG. 4a, X is added to the suffix of the process ID that needs to be retransmitted. If downlink asynchronous adaptive retransmission is adopted, the PDCCH for retransmission scheduling may be configured as a single subframe. In the system, subframe #8, subframe #9, subframe #10, and subframe #11 may not be allocated to the current terminal for new data packet transmission due to scheduling reasons. At the moment when retransmission is required, if there is no new data packet allocated to the current terminal at the corresponding time of the subframe, the terminal can determine that the data packet is a retransmission data packet through the received PDCCH. As shown in Fig. 4a, assuming that the retransmission interval is 4 subframes, HARQ process #2 and process #3 can be retransmitted in subframe 9 and subframe 10 respectively. When the base station is in subframe #12, it configures multi-subframe scheduling of a newly transmitted data packet, carrying the downlink resource indication (DL scheduling) of the smallest available HARQ process #0, indicating that the newly transmitted data is sent in this subframe #12 packet, and 4 consecutive subframes including subframe #12 are used for transmission of newly transmitted data packets. Wherein, during each multi-subframe scheduling, the UE may select the HARQ process number corresponding to the current subframe from the currently available HARQ process numbers in ascending order, or select the minimum value from the currently available HARQ process numbers each time It is used as the HARQ process number of the current subframe. As shown in Figure 4a, the available HARQ process numbers in subframe #15 include: "1" (released in subframe #5), "4" (released in subframe #8), "7" (released in subframe # 11 release), if you follow the method from small to large, since the HARQ process number corresponding to subframe #12 of the last newly transmitted data packet is "0", the HARQ process number corresponding to subframe #15 can be "1 "; if the minimum value is selected according to the method, the HARQ process number corresponding to subframe #15 may also be "1". Assuming that the HARQ process number corresponding to subframe #12 is "3", then in descending order, the HARQ process number corresponding to subframe #15 can be "4", and in the order of the smallest value, the subframe The HARQ process number corresponding to #15 may be "1".

Further, in the process of multi-subframe scheduling, the newly transmitted data packet of the HARQ process number indicated in the resource indication and the retransmitted data packet of the HARQ process number indicated in the retransmission resource indication signaling may occur in the same subframe In case of conflict, at this time, the retransmission data packet with the HARQ process number included in the retransmission resource indication signaling is prioritized for scheduling. For example: in the second multi-subframe scheduling process in Figure 4a, the base station sends the DL scheduling of the HARQ process #4 in subframe #4, which also includes consecutive subframes #5, subframe #6, and subframe # The HARQ process number of 7. When an error occurs in the transmission of the newly transmitted data packet of HARQ process #5 in subframe #5, the UE returns an uplink NAK message to the base station in subframe #9, and the base station can send retransmission scheduling DLscheduling in subframe #13 for retransmission resources The indication signaling is used to indicate the scheduling of the retransmission data packet of the HARQ process #5. At this time, the subframe #13 that should be used for the third multi-subframe scheduling to transmit the newly transmitted data packet is occupied by retransmission, and the next idle subframe #14 without retransmission can transmit the occupied subframe resource Newly transmitted data packets. If the number of subframes for continuous scheduling is not extended, the multi-subframe scheduling this time may end after the scheduling of 4 subframes is completed, as shown in FIG. 4 a . If the number of subframes for continuous scheduling is extended, the multi-subframe scheduling can finish processing the HARQ process numbers that originally required continuous scheduling, as shown in Figure 4b, which is the third embodiment of the multi-subframe scheduling method of the present invention Schematic diagram of extending the number of subframes in continuous scheduling. The third multi-subframe scheduling originally needs to occupy subframes #12, #13, #14, and #15, which correspond to scheduling HARQ processes #0, #1, #4, The newly transmitted data packet of #7 should originally transmit the newly transmitted data packet of HARQ process number #1 in subframe #13, but because the base station issued the retransmission resource indication signaling of HARQ process #5 in subframe #13, Therefore, subframe #13 is occupied by the retransmission data packet of HARQ process #5. Since the base station issued the retransmission resource indication signaling of HARQ process #6 in subframe #14, subframe #14 is occupied by the retransmission data packet of HARQ process #6. The retransmission data packet is occupied, the scheduling of the newly transmitted data packet of the HARQ process number #1 is delayed to the subframe #15, the scheduling of the newly transmitted data packet of the HARQ process number #4 is delayed to the subframe #16, and the HARQ The scheduling of the newly transmitted data packet of process #7 is delayed until subframe #17 for processing.

In addition, in a heterogeneous network scenario, in order to avoid interference caused by ACK/NAK information or PDCCH fed back by strong interfering cells. Base stations in adjacent cells can exchange information such as resource occupancy, transmission time, transmission power, interference level related parameters, and measurement results of the control channel resources of strong interference cells through the inter-base station interface, such as the X2 interface. The information is reserved for ACK/NAK resources or PDCCH resources, and is used to schedule and allocate the resource positions occupied by the control channels of the current cell. On the one hand, the ACK/NAK resources of this cell and other cells can be scheduled on actual physical resources such as frequency domain resources according to the interference situation of adjacent cells, so as to avoid interference in uplink transmission between adjacent cells. For example: Coordinate between the local cell and the strong interference cell to allocate the control channel resources of the base station of the corresponding strong interference cell, such as physical layer control channels such as UL ACK/NAK, CQI, SRI, RACH or PDCCH, and connect the strong interference cell to the local The ACK/NAK information of the cell is coordinated and allocated on different frequency bands. On the other hand, time domain resources can be reserved for PDCCH, and information exchange can be carried out through the X2 interface between base stations. The transmission time of the PDCCH corresponding to the strong interference cell is guaranteed to ensure the allocation of the PDCCH time of the corresponding strong interference cell, thereby avoiding strong interference at the same time Cells transmit PDCCH simultaneously in the same frequency band. As shown in Figure 4a, since the PDCCH of cell #0 can be sent in subframe #0, the PDCCH can not be sent in subframe #1, subframe #2, and subframe #3. #2 and subframe #3 transmit the PDCCHs of strong interfering cell #1, cell #2, and cell #3 respectively. Therefore, when deploying a wireless network, the number of continuous transmission subframes can be determined according to the number of strongly interfering cells. The terminals in corresponding cell #0 only receive data in subframe #0, and may not receive and detect PDCCH in subframe #1, subframe #2, and subframe #3.

In this embodiment, when the base station sends the PDCCH to the terminal, it carries the HARQ process number corresponding to the first scheduled subframe of each multi-subframe scheduling and the continuous scheduling indication, which can realize multi-subframe scheduling and save system control signaling overhead , to improve the spectral efficiency of the system. Using single subframe scheduling for retransmission can be better compatible with existing systems. A single PDCCH is used for data scheduling of multiple subframes, and resources can also be reserved. When there are adjacent strong interference cells, interactive information can be sent through the control channels between base stations, so that the control channels of strong interference cells can be avoided. Time scheduling data, thereby reducing interference between control channels.

5 is a schematic diagram of a fourth embodiment of the multi-subframe scheduling method of the present invention. The base station sends a high-level multi-subframe scheduling start signaling to the UE to start the data transmission mode of multi-subframe reception and multi-subframe transmission by the terminal. The difference from the first embodiment is that high-level signaling is not used to notify the number of consecutively scheduled subframes, and each multi-subframe scheduling uses physical layer signaling, for example: PDCCH carries continuous scheduling instructions, and notifies the terminal of the subframes for uplink and downlink continuous scheduling number of frames. The discontinuous subframes to be scheduled may be indicated in a bit map (bit map) mapping manner, or the number of consecutive subframes may be indicated by signaling. In this embodiment, the number of consecutive subframes is taken as an example. In the PDCCH, new bits or reused bits can be used to carry resource indications. For example, in the downlink resource indication (DL scheduling) in the PDCCH, the redundant version field (RV field) to carry the continuous scheduling indication, or add more bits to carry the continuous scheduling indication. In the uplink resource indication (UL grant), the continuous scheduling indication can be carried by reusing existing padding bits, or adding more bits to carry the continuous scheduling indication.

Taking the downlink transmission as an example, the continuous scheduling indication of multi-subframe scheduling can be expressed as: the number of consecutively scheduled subframes immediately after the subframe indicated by the PDCCH is the number of consecutively scheduled subframes after the first scheduled subframe number. In subframe #0, the resources bearing the multi-subframe scheduling of process #0 indicate DL scheduling. The scheduling indication is "4", indicating that the PDCCH indicates resource scheduling of subframe #0, subframe #1, subframe #2, subframe #3, and subframe #4. Multiple subframes can be scheduled through one PDCCH until the terminal reaches its maximum HARQ process. If the continuous scheduling indication is "2" in the PDCCH of subframe #5, it means that the PDCCH indicates resource scheduling of subframe #5, subframe #6, and subframe #7. The HARQ process number for multi-subframe scheduling can be obtained from the HARQ process number field (process number field) carried in the PDCCH sent by the base station. The HARQ process number field indicates the process number corresponding to the current subframe scheduling data packet. The data packets of the subframe may be sequentially corresponded to according to the sequence of available idle HARQ numbers. The SPS transmission in the existing LTE Release8 protocol does not support the transmission mode of spatial multiplexing, but only supports the transmission mode of transmit diversity. In the multi-subframe scheduling mode, more semi-persistent scheduling control channel formats can be used to indicate the activation of semi-persistent scheduling to support spatial multiplexing transmission.

Further, in the multi-subframe scheduling process, the indication retransmission information in a multi-subframe manner may also be used. As shown in Figure 5, when an error occurs in both HARQ process #4 and process #5, the UE will return an uplink NAK message to the base station, and both HARQ process #4 and process #5 need to be retransmitted, and the corresponding retransmission subframe The location can also be indicated through multi-subframe scheduling signaling in the PDCCH. In subframe #12, the base station sends the retransmission resource indication signaling of HARQ process #4 and process #5. In addition to the HARQ process #4, the UE may also obtain the retransmission data packet of the HARQ process number #5 that needs to be retransmitted in the subframe #13 where the PDCCH is not delivered.

In this embodiment, when the base station sends the PDCCH to the terminal, it carries the HARQ process number and continuous scheduling indication of each currently scheduled subframe, which can realize multi-subframe scheduling, save system control signaling overhead, and improve system spectral efficiency. . Using multi-subframe scheduling during retransmission can further reduce system control signaling overhead and improve system performance.

Two resource indication modes for data transmission are defined in the existing LTE protocol, Dynamic Scheduling (Dynamic Scheduling; DS for short) and Semi-Persistent Scheduling (Semi-Persistent Scheduling; SPS for short). Under dynamic scheduling, each newly transmitted data packet has a corresponding control signaling, such as PDCCH, to notify its resource and transmission mode. A user equipment (User Equipment; UE for short) receives downlink data and transmits uplink data according to a PDCCH issued by a base station (Base Station; BS for short). The PDCCH can occupy resources of 1 to 3 Orthogonal Frequency Division Multiplexing (OFDM) symbols in corresponding several downlink subframes: used to carry downlink resource indication (DL scheduling) or downlink resource indication ( UL grant), used to indicate the corresponding downlink and uplink transmission. The base station can adjust the number of OFDM symbols occupied by the PDCCH according to the number of scheduled users in the cell. When the PDCCH occupies fewer OFDM symbols, the more resources that can carry data, the higher the corresponding system spectrum efficiency; when the PDCCH occupies more resources, the fewer resources to carry effective data, the lower the system spectrum efficiency. In the semi-persistent scheduling mode, the base station only sends downlink control signaling (PDCCH) once when semi-persistent scheduling transmission is started, and the UE starts SPS transmission according to the position and time indicated by the PDCCH, and the UE performs new transmission of data packets at a certain interval Transmission and reception until a specially formatted PDCCH is received to terminate SPS transmission.

Since both dynamic scheduling and semi-persistent scheduling are notified by PDCCH, the UE can distinguish whether this scheduling is dynamic scheduling or semi-persistent scheduling through different IDs scrambled on the CRC of the PDCCH. The CRC of the dynamically scheduled PDCCH is scrambled through the C-RNTI; the CRC of the semi-persistently scheduled PDCCH is scrambled through the SPS-C-RNTI. When the UE detects the PDCCH scrambled by SPS-C-RNTI, it knows and starts this semi-static transmission, and according to the received or sent data indicated in the PDCCH, within a period of time according to the PDCCH that starts the semi-static transmission for the first time To receive or send data at the indicated position, it is not necessary to notify the resource position of the SPS data packet through the PDCCH every time. When the SPS resource position needs to be changed, the newly configured PDCCH can be used to replace the previous one when the SPS data arrives periodically. Configuration for semi-persistent scheduling. Until a specially formatted SPS-C-RNTI scrambled PDCCH cancels this semi-static transmission. The existing protocol stipulates that the values of the downlink and uplink semi-static scheduling intervals can be 10, 20, 32, 40, 65, 80, 128, 160, 320, and 640. This interval indicates the interval between sending two semi-static data packets. interval.

For newly transmitted data packets under dynamic scheduling, the data resources transmitted in each subframe are in the corresponding uplink and downlink subframes, and the corresponding PDCCH is required to indicate the corresponding resource location and other configurations for the transmitted data configuration. Therefore, when there is continuous new data to be transmitted, in the corresponding downlink subframe, the PDCCH carrying the corresponding number of uplink and downlink data packets needs to be indicated. For retransmission data, the synchronous non-adaptive HARQ mechanism can be used for retransmission processing in uplink transmission. The retransmission data packets using this mechanism can be allocated in the corresponding subframe according to the HARQ timing, and in the corresponding resource according to the configuration of the last transmission. Sending uplink data does not require PDCCH for retransmission data; for uplink adaptive retransmission and downlink data retransmission data, PDCCH is required for retransmission resource indication signaling.

FIG. 6 is a schematic diagram of a fifth embodiment of the multi-subframe scheduling method of the present invention. As shown in FIG. 6 , during semi-persistent scheduling, the PDCCH scrambled by SPS-C-RNTI can be activated for uplink and downlink semi-persistent scheduling. The base station may notify the UE of the semi-persistent subframe scheduling interval n and/or the semi-persistent scheduling transmission length m to be started through high-layer signaling. The semi-persistent scheduling transmission length m is the continuous scheduling indication in the above embodiment. Assuming that the time when the PDCCH is delivered is the starting position of the semi-persistently scheduled subframe, and the semi-persistently scheduled interval is n, the terminal is scheduled m times with resources configured the same as the activated PDCCH, such as the HARQ process, and then the corresponding resources are released. If the system does not notify the transmission length m of the semi-persistent scheduling, the resource release indication can be performed by releasing the PDCCH of the semi-persistent scheduling.

For example: in the first multi-subframe scheduling, the semi-persistent scheduling transmission length parameter m is "3", and the semi-persistent subframe scheduling interval n is "2", as shown in Figure 6, the activation is issued in subframe #0 The semi-persistently scheduled PDCCH has a HARQ process number of "0", so the new data packet corresponding to HARQ process #0 is transmitted in subframe #0. According to the semi-static subframe scheduling interval n=2, it needs to be separated by one subframe. The subframe #2 of one transmission transmits the data corresponding to the HARQ process #1, and similarly, the subframe #4 corresponds to the newly transmitted data packet of the HARQ process #2. After the three transmissions are completed, the PDCCH for this semi-persistent scheduling is invalidated. During the second multi-subframe scheduling, the base station may reconfigure corresponding m=4 and n=2, and issue a new semi-persistently scheduled PDCCH for this transmission instruction. For example: a new PDCCH is sent in subframe #5, where the HARQ process number is "3", and the transmission is performed according to the corresponding configuration. At this time, the transmission of HARQ process #3 is performed in subframe #5, and the transmission is performed in subframe #7. For the transmission of HARQ process #4, due to the uplink ACK information corresponding to the feedback HARQ process #0 in subframe #4, the default HARQ process #0 has been released, so at the next transmission time subframe #9, it can be from the currently available Select the newly transmitted data packet of the HARQ process #0 corresponding to the transmission minimum value "0" in the HARQ process number. Since the HARQ process #1 has not been released, assuming that the retransmission timing is 4 subframes, the retransmission scheduling of the HARQ process #1 can be performed through the PDCCH carrying the retransmission resource indication signaling in the subframe #10. Wherein, the semi-persistent subframe scheduling interval n can be set to different values such as 1, 2, 3, 4, 5, etc., and the semi-persistent scheduling transmission length m can be equal to the maximum number of HARQ processes in the system, for example: 1 to 15.

In this embodiment, when the base station sends the PDCCH to the terminal, it carries the HARQ process number of each currently scheduled subframe, the continuous scheduling indication and the semi-static subframe scheduling interval, so that multi-subframe scheduling can be realized in the semi-static scheduling mode. The control signaling overhead of the system is saved, and the spectrum efficiency of the system is improved. Using multi-subframe scheduling during retransmission can further reduce system control signaling overhead and improve system performance.

FIG. 7 is a schematic structural diagram of a first embodiment of a base station according to the present invention. As shown in FIG. 7 , the base station may include: a scheduling instruction delivery module 71 and a data packet transmission module 72 .

Wherein, the dispatching instruction issuing module 71 is configured to issue to the terminal a continuous scheduling instruction for multi-subframe scheduling, a HAR process number corresponding to the first scheduled subframe, and scheduling configuration parameters;

The data packet transmission module 72 is configured to obtain the HARQ process number corresponding to the current scheduling subframe according to the HARQ process number corresponding to the first scheduling subframe and the continuous scheduling indication, and adopt the scheduling configuration parameter in the current scheduling subframe for data packet transmission corresponding to the hybrid automatic repeat process number; each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling All frames adopt the scheduling configuration parameters.

Specifically, the scheduling instruction sending module 71 of the base station can send a continuous scheduling instruction to the terminal through high-layer signaling or physical layer signaling, for example: the number of all consecutive scheduling subframes or the number of consecutive scheduling subframes after the first scheduling subframe The number of frames, and the HARQ process number of the currently scheduled subframe in each multi-subframe scheduling is delivered to the terminal through physical layer signaling such as PDCCH. If the newly transmitted data packet of the hybrid automatic repeat transmission process number corresponding to the current scheduling subframe is successfully scheduled, the feedback information is positive information, otherwise it is negative information. If there is negative information in the feedback information, the data packet transmission module 72 sends retransmission resource indication signaling including the HARQ process number corresponding to the negative information to the terminal. The base station can pre-set the retransmission delay, carrying

Send it to the terminal together in the retransmission resource indication signaling, or notify the terminal through other signaling that after the set retransmission delay, the base station can schedule the HAR process number included in the retransmission resource indication signaling Retransmit the packet.

In this embodiment, the scheduling instruction delivery module of the base station sends the scheduling configuration parameters, continuous scheduling instructions, and the hybrid automatic retransmission process number corresponding to the first scheduling subframe in multi-subframe scheduling, which can realize multi-subframe scheduling and save system time. control signaling overhead and improve the spectrum efficiency of the system. The retransmission resource indication signaling issuing module issues the retransmission resource indication signaling including the hybrid automatic repeat process number corresponding to the negative information to the terminal during retransmission, and the single subframe scheduling can be used for single subframe scheduling. Good compatibility with existing systems.

Figure 8 is a schematic structural diagram of the second embodiment of the base station of the present invention. As shown in Figure 8, on the basis of the first embodiment of the base station of the present invention, the continuous scheduling indication may include the number of subframes that need to be scheduled this time or the number of subsequent subframes The number of consecutively scheduled subframes. Further, the dispatching instruction issuing module 71 may include: a first sending sub-module 711 and/or a second sending sub-module 712 .

Wherein, the first delivery submodule 711 is configured to deliver high-level signaling carrying the continuous scheduling indication to the terminal, the high-level signaling is used to notify the terminal of starting or canceling the multi-subframe scheduling, and send the terminal to the terminal issuing the physical downlink control channel carrying the scheduling configuration parameters and the hybrid automatic repeat process number corresponding to the first scheduling subframe;

The second delivery sub-module 712 is configured to deliver to the terminal a physical downlink control channel carrying the continuous scheduling indication, the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe, and scheduling configuration parameters.

Further, the base station also includes any one or more of the following modules:

The setting module 74 is used to set the continuous scheduling indication in the new bit or reused bit of the physical downlink control channel, and the reused bit is the redundancy version field or the uplink in the downlink resource indication of the physical downlink control channel padding bits in the resource indication;

The retransmission scheduling module 73 is configured to: when the data packet carried by each scheduled subframe of the multi-subframe scheduling is a newly transmitted data packet, if there is negative information in the feedback information obtained by transmitting the newly transmitted data packet, send The terminal issues the retransmission resource indication signaling carrying the hybrid automatic repeat process number corresponding to the negative information, and sends to the terminal or receives the retransmission resource indication signaling sent by the terminal in the retransmission subframe corresponding to the retransmission resource indication signaling The retransmission data packet of the hybrid automatic retransmission process number corresponding to the negative information;

A conflict processing module 75, configured to preferentially schedule the retransmitted data packet in the same scheduled subframe if the newly transmitted data packet and the retransmitted data packet are scheduled in the same scheduling subframe;

The continuous retransmission module 76 is configured to transmit the newly transmitted data packets and obtain continuous negative information in the feedback information, and the retransmission resource indication signaling also includes all consecutive negative information corresponding to the continuous multiple negative information. The number of consecutive retransmission subframes or the number of consecutive retransmission subframes after the first retransmission subframe;

The strong interference processing module 77 is configured to obtain information of adjacent cells from the interface between base stations, the information of the adjacent cells includes the frequency domain position occupied by the physical downlink control channel or the physical uplink control channel assigned by the base station of the adjacent cell , transmission time and/or transmission power; according to the information of adjacent cells, the information of the strong interfering cell whose interference level is greater than the set threshold is obtained, and according to the information of the strong interfering cell, the physical downlink between the strong interfering cell and the own cell The control channel is coordinated and allocated on different subframes, and the base station of the cell is determined to send the scheduling subframe of the physical downlink control channel of multi-subframe scheduling to the terminal; or the strong interference cell is coordinated with the physical uplink control channel of the cell are allocated on non-overlapping frequency bands;

The semi-persistent scheduling module 78 is configured to deliver a semi-persistent subframe scheduling interval to the terminal through high-level signaling during semi-persistent scheduling.

In addition, the continuous scheduling indication includes the number of all continuously scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, and the data packet transmission module 72 may also include: first process number acquisition subframe The module 721 and/or the second process number acquisition submodule 722.

Wherein, the first process number acquiring sub-module 721 is configured to, according to the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, each time from the currently available hybrid automatic Select the minimum value in the transmission process number as the hybrid automatic retransmission process number of the current scheduling subframe;

The second process number acquisition sub-module 722 is configured to, according to the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe and the hybrid automatic reconfiguration corresponding to the first scheduled subframe The process number is transmitted, and the currently available HARQ process ID is selected in ascending order as the HARQ process ID of the currently scheduled subframe.

Specifically, in one case, the first sending submodule 711 of the base station may use high-layer signaling such as: multi-subframe scheduling start signaling to send continuous scheduling instructions to the terminal, and use physical layer signaling such as: PDCCH to send scheduling configuration parameters HAR process ID corresponding to the first scheduling subframe. At this time, the high-level signaling is not only used to notify the terminal of starting or canceling the multi-subframe scheduling, but also used to issue a continuous scheduling instruction.

In another case, the setting module 74 of the base station can set the continuous scheduling indication in the newly added bit or reused bit of the physical downlink control channel, for example: the redundancy version field in the downlink resource indication or in the uplink resource indication In the padding bit, after the base station sends high-level signaling to the terminal to inform the terminal to start multi-subframe scheduling, the second delivery submodule 712 can use the physical downlink control channel to deliver scheduling configuration parameters, continuous scheduling instructions, and the first scheduling configuration to the terminal. The physical downlink control channel of the hybrid automatic repeat transmission process number corresponding to the subframe.

If the scheduling of the newly transmitted data packet of the HAR process number scheduled this time is successful, the obtained feedback information is positive information, otherwise the obtained feedback information is negative information. If there is a continuous HARQ process number corresponding to the negative information, the continuous retransmission module 76 may set the continuous retransmission indication corresponding to the negative information in the retransmission resource indication signaling, and the continuous retransmission indication The number of all consecutive retransmission subframes or the number of consecutive retransmission subframes after the first retransmission subframe is included to indicate the number of retransmission data packets that the terminal needs to schedule continuously.

If the continuous scheduling indication conflicts with the subframe included in the retransmission resource indication signaling, the conflict processing module 75 may preferentially schedule the retransmission data packet of the hybrid automatic repeat process number included in the retransmission resource indication signaling, and may select Extend or not extend the number of subframes processed in this multi-subframe scheduling process. For details, reference may be made to the relevant description of the third embodiment of the multi-subframe scheduling method of the present invention and FIG. 3 and FIG. 4 .

Further, if the interference intensity of the neighboring cell to the current cell is relatively large, it is a strong interference cell with respect to the current cell. The strong interference processing module 77 of the base station of the local cell can interact with the base station of the strong interference cell, obtain the information of the adjacent strong interference cell from the interface between the base stations, and then reserve the time domain for the physical downlink control channel according to the information of the strong interference cell resources or reserve frequency domain resources for the feedback information; according to the reserved time domain resources, coordinate and allocate the physical downlink control channels of the strongly interfering cell and this cell on different subframes; or according to the reserved frequency domain resources , coordinate and allocate the feedback information of the strongly interfering cell and the own cell to different frequency bands.

Furthermore, during the semi-persistent scheduling, the semi-persistent scheduling module 78 may also deliver the semi-persistent subframe scheduling interval to the terminal. Then, the continuous scheduling indication is used as the semi-static transmission scheduling length, and a newly transmitted data packet corresponding to the hybrid automatic repeat process number is scheduled at each semi-static subframe scheduling interval. If there is negative information in the feedback information obtained by scheduling, after setting After a predetermined retransmission delay, the retransmission data packets of the HAR process number corresponding to the negative information are scheduled at each semi-static subframe scheduling interval.

In this embodiment, the first sending sub-module and the second sending sub-module of the base station send scheduling configuration parameters, continuous scheduling instructions, and the hybrid automatic retransmission process number corresponding to the first scheduling subframe to the terminal, which can realize multiple subframes Scheduling saves system control signaling overhead and improves system spectrum efficiency. The retransmission resource indication signaling issuing module issues the retransmission resource indication signaling including the hybrid automatic repeat process number corresponding to the negative information to the terminal during retransmission, and the single subframe scheduling can be better compared with the existing There are systems compatible. The continuous retransmission module can also issue to the terminal the number of HARQs that need to be retransmitted this time or the number of HARQs that need to be retransmitted in the future, so as to realize multi-subframe retransmission Scheduling can further reduce system control signaling overhead and improve system performance. Using a single PDCCH for data scheduling of multiple subframes, the strong interference processing module can also reserve resources, and when there are adjacent strong interference cells, it can send interactive information through the control channel between base stations, so that the control channel of the strong interference cell avoid scheduling data at the same time, thereby reducing interference between control channels. The semi-persistent scheduling module can also implement multi-subframe scheduling in a semi-persistent scheduling manner.

FIG. 9 is a schematic structural diagram of a first embodiment of a terminal according to the present invention. As shown in FIG. 9 , the terminal may include: a scheduling indication receiving module 91 and a data packet transmitting module 92 .

Among them, the scheduling instruction receiving module 91 is used to receive the continuous scheduling instruction of multi-subframe scheduling sent by the base station, the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe, and the scheduling configuration parameters;

The data packet transmission module 92 is configured to obtain the hybrid automatic repeat process number corresponding to the current scheduled subframe according to the hybrid automatic repeat process number corresponding to the first scheduled subframe and the continuous scheduling indication, and adopt the scheduling configuration parameter in the current scheduling subframe for data packet transmission corresponding to the hybrid automatic repeat process number; each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling All frames adopt the scheduling configuration parameters.

Specifically, the base station may issue a continuous scheduling instruction to the terminal through high-layer signaling or physical layer signaling, such as: the number of all continuously scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, and through For example, the physical layer signaling: the PDCCH sends the scheduling configuration parameters in each multi-subframe scheduling and the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe to the terminal. After the scheduling indication receiving module 91 of the base station receives the scheduling configuration parameters sent by the base station, the continuous scheduling indication and the HARQ process number corresponding to the first scheduling subframe, if the HARQ process number corresponding to the current scheduling subframe If there is negative information in the feedback information obtained by scheduling the newly transmitted data packets, the data packet transmission module 92 may receive the retransmission resource indication signaling sent by the base station including the HARQ process number corresponding to the negative information. Among them, the base station can pre-set the retransmission delay, carry it in the retransmission resource indication signaling and send it to the terminal, or notify the terminal through other signaling, after the set retransmission delay, the base station can schedule the retransmission resource indication The retransmission data packet of the hybrid automatic retransmission process number included in the signaling.

After the scheduling instruction receiving module of the terminal in this embodiment receives the scheduling configuration parameters issued by the base station, the continuous scheduling instruction, and the hybrid automatic retransmission process number corresponding to the first scheduling subframe, it can implement multi-subframe scheduling, saving system control signals. Reduce the overhead and improve the spectral efficiency of the system. The data packet transmission module receives and sends the retransmission resource indication signaling including the hybrid automatic retransmission process number corresponding to the negative information during retransmission, and the single subframe scheduling can be better compatible with the existing system.

Fig. 10 is a schematic structural diagram of the second embodiment of the terminal of the present invention. As shown in Fig. 10, on the basis of the first embodiment of the terminal of the present invention, the continuous scheduling indication includes the number of subframes that need to be scheduled this time or the number of subframes that need to be scheduled this time or the subsequent consecutive For the number of scheduled subframes, the scheduling indication receiving module 91 may include: a first receiving submodule 911 and/or a second receiving submodule 912 .

Wherein, the first receiving submodule 911 is configured to receive the high-layer signaling carrying the continuous scheduling instruction sent by the base station, the high-layer signaling is used to notify the terminal of starting or canceling the multi-subframe scheduling, and receive the high-layer signaling sent by the base station A physical downlink control channel carrying the scheduling configuration parameters and the hybrid automatic repeat process number corresponding to the first scheduling subframe;

The second receiving submodule 912 is configured to receive the physical downlink control channel sent by the base station and carrying the continuous scheduling indication, the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe, and scheduling configuration parameters.

Further, the terminal may further include: a determination module 93 and/or a retransmission scheduling module 95 .

Wherein, the determining module 93 is configured to determine whether the scheduling is single-subframe scheduling or multi-subframe scheduling according to the received downlink transmission control information format in the physical downlink control channel;

The retransmission scheduling module 95 is configured to: when the data packet carried by each scheduled subframe of the multi-subframe scheduling is a newly transmitted data packet, if there is a negation in the feedback information of the newly transmitted data packet obtained by transmitting the newly transmitted data packet information, receiving the retransmission resource indication signaling issued by the base station including the hybrid automatic repeat process number corresponding to the negative information, and sending the retransmission resource indication signaling to the base station in the retransmission subframe for which the retransmission resource indication signaling is Or receive the retransmission data packet corresponding to the HARQ process number sent by the base station and sent by the base station.

Further, the continuous scheduling indication includes the number of all continuously scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, and the data packet transmission module may include: the first process number acquisition submodule 921 and /or the second process number acquisition submodule 922 .

Wherein the first process number acquisition sub-module 921 is used to retransmit from the currently available hybrid automatic retransmission each time according to the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe Select the minimum value in the process number as the hybrid automatic retransmission process number of the current scheduling subframe;

The second process number acquisition sub-module 922 is configured to, according to the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe and the hybrid automatic reconfiguration corresponding to the first scheduled subframe The process number is transmitted, and the currently available HARQ process ID is selected in ascending order as the HARQ process ID of the currently scheduled subframe.

Specifically, in one case, the first receiving submodule 911 may receive high-level signaling sent by the base station to notify the terminal of the activation or cancellation of multi-subframe scheduling, for example: high-level multi-subframe scheduling activation signaling, the multi-subframe scheduling The frame scheduling start signaling may include a continuous scheduling indication, and then receive the physical downlink control channel carrying the scheduling configuration parameters and the hybrid automatic repeat process number corresponding to the first scheduling subframe delivered by the base station. In another case, the first receiving submodule 911 may receive the high-level multi-subframe scheduling start signaling sent by the base station. The multi-subframe scheduling start signaling is only used to indicate the start of multi-subframe scheduling, but does not include continuous Scheduling indication, and then the second receiving submodule 912 receives the physical downlink control channel sent by the base station and carrying the scheduling configuration parameters, the continuous scheduling indication and the HARQ process number corresponding to the first scheduling subframe. Wherein, the determining module 93 may determine whether the current scheduling is single-subframe scheduling or multi-subframe scheduling according to the received downlink transmission control information format in the physical downlink control channel. The first process number acquisition submodule 921 and the second process number acquisition submodule 922 can acquire the current subframe according to the continuous scheduling indication in each multi-subframe scheduling and the hybrid automatic retransmission process number corresponding to the first scheduled subframe Corresponding HARQ process ID. For example: according to the number of all continuously scheduled subframes in the continuous scheduling instruction or the number of continuously scheduled subframes after the first scheduled subframe, the first process number acquisition submodule 921 automatically selects from the currently available mixed Select the minimum value in the retransmission process number as the hybrid automatic retransmission process number of the current scheduled subframe; or the second process number acquisition submodule according to the number of all continuous scheduling subframes in the continuous scheduling indication or in the first The number of consecutive scheduling subframes after the scheduling subframe and the HARQ process number corresponding to the first scheduling subframe, and the currently available HARQ process numbers are selected in ascending order as the HARQ process number of the current scheduling subframe. Hybrid automatic retransmission process ID. If there is negative information in the feedback information obtained from the scheduling of the newly transmitted data packet of the hybrid automatic retransmission process number corresponding to the current scheduling subframe, the data packet transmission module 92 may receive the hybrid automatic retransmission process number corresponding to the negative information issued by the base station. The retransmission resource indication signaling of the retransmission process ID. Among them, the base station can pre-set the retransmission delay, carry it in the retransmission resource indication signaling and send it to the terminal, or notify the terminal through other signaling, after the set retransmission delay, the base station can schedule the retransmission resource indication The retransmission data packet of the hybrid automatic retransmission process number included in the signaling.

After the first receiving submodule and the second receiving submodule of the terminal in this embodiment receive the scheduling configuration parameters of the multi-subframe scheduling, the continuous scheduling indication and the hybrid automatic retransmission process number corresponding to the first scheduling subframe issued by the base station, The multi-subframe scheduling can be realized, the control signaling overhead of the system is saved, and the spectral efficiency of the system is improved. The data packet transmission module receives and sends the retransmission resource indication signaling including the hybrid automatic retransmission process number corresponding to the negative information during retransmission, and the single subframe scheduling can be used for single subframe scheduling, which can be better compatible with the existing system, Using multi-subframe scheduling during retransmission can further reduce system control signaling overhead and improve system performance.

FIG. 11 is a schematic structural diagram of an embodiment of a multi-subframe scheduling system according to the present invention. As shown in FIG. 11 , the multi-subframe scheduling system may include a base station 10 and a terminal 20 with any of the above structures.

Specifically, the base station 10 may issue a continuous scheduling instruction to the terminal 20 through high-level signaling or physical layer signaling, for example: the number of all consecutively scheduled subframes or the number of consecutively scheduled subframes after the first scheduled subframe, And send the scheduling configuration parameters and the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe to the terminal 20 through physical layer signaling such as: PDCCH. If the newly transmitted data packet of the hybrid automatic repeat transmission process number corresponding to the current scheduling subframe is successfully scheduled, the feedback information is positive information, otherwise it is negative information. If there is negative information in the feedback information, the base station 10 sends the terminal 20 retransmission resource indication signaling including the hybrid automatic repeat process number corresponding to the negative information. The base station 10 can pre-set the retransmission delay, carry it in the retransmission resource indication signaling and send it to the terminal 20, or inform the terminal 20 through other signaling, after the set retransmission delay, the base station 10 can schedule the retransmission The retransmission data packet of the HAR process ID included in the resource indication signaling.

In this embodiment, the scheduling configuration parameters in the multi-subframe scheduling under the base station, the continuous scheduling indication, and the hybrid automatic retransmission process number corresponding to the first scheduling subframe can realize multi-subframe scheduling and save system control signaling overhead. Improve the spectral efficiency of the system. During retransmission, single-subframe scheduling can be used for better compatibility with existing systems, and multi-subframe scheduling can be used for retransmission, which can further reduce system control signaling overhead and improve system performance.

For specific methods of multi-subframe scheduling performed by the base station, terminal, and multi-subframe scheduling system in the embodiments of the present invention, reference may be made to the relevant descriptions and drawings in the first to fifth embodiments of the multi-subframe scheduling method of the present invention.

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

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than 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 Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (15)

1. A multi-subframe scheduling method, characterized in that, comprising: Send the continuous scheduling instruction of multi-subframe scheduling, the HAR process number corresponding to the first scheduling subframe, and scheduling configuration parameters to the terminal; According to the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe and the continuous scheduling indication, obtain the hybrid automatic repeat transmission process number corresponding to the current scheduling subframe, and use the scheduling configuration parameters in the current scheduling subframe Carry out the data packet transmission of the corresponding hybrid automatic retransmission process number; Each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling adopts the scheduling configuration parameters; Wherein, the sending the continuous scheduling indication of multi-subframe scheduling, the hybrid automatic retransmission process number corresponding to the first scheduling subframe, and scheduling configuration parameters to the terminal includes: Sending high-level signaling carrying the continuous scheduling indication to the terminal, where the high-level signaling is used to notify the terminal of starting or canceling multi-subframe scheduling, and sending to the terminal carrying the scheduling configuration parameters and the first Scheduling the physical downlink control channel of the hybrid automatic repeat process number corresponding to the subframe; or A physical downlink control channel carrying the continuous scheduling indication, the HAR process number corresponding to the first scheduling subframe, and scheduling configuration parameters is delivered to the terminal. 2. The multi-subframe scheduling method according to claim 1, further comprising: Setting the continuous scheduling indication in the newly added bits or reused bits of the physical downlink control channel, where the reused bits are the redundant version field in the downlink resource indication of the physical downlink control channel or in the uplink resource indication Padding bits. 3. The multi-subframe scheduling method according to claim 1, wherein the data packet carried by each scheduling subframe of the multi-subframe scheduling is a newly transmitted data packet, and the method further comprises: If there is negative information in the feedback information obtained by transmitting the newly transmitted data packet, send the retransmission resource indication signaling carrying the hybrid automatic repeat process number corresponding to the negative information to the terminal, and The retransmission subframe corresponding to the transmission resource indication signaling sends to the terminal or receives the retransmission data packet corresponding to the HAR process number sent by the terminal that is sent by the terminal. 4. The multi-subframe scheduling method according to claim 3, further comprising: If the newly transmitted data packet and the retransmitted data packet are scheduled in the same scheduling subframe, the retransmitted data packet is preferentially scheduled in the same scheduling subframe. 5. The multi-subframe scheduling method according to claim 3 or 4, wherein if there is a plurality of continuous negative information in the feedback information obtained by transmitting the newly transmitted data packet, the retransmission resource indication signal The command further includes the number of all consecutive retransmission subframes corresponding to the multiple consecutive negative information or the number of consecutive retransmission subframes after the first retransmission subframe. 6. The multi-subframe scheduling method according to any one of claims 1-4, further comprising: Obtain the information of the adjacent cell from the interface between the base stations, the information of the adjacent cell includes the frequency domain position, transmission time and/or transmission power occupied by the physical downlink control channel or the physical uplink control channel allocated by the base station of the adjacent cell ; According to the information of adjacent cells, obtain the information of the strong interfering cell whose interference level is greater than the set threshold, and according to the information of the strong interfering cell, coordinate and allocate the physical downlink control channel of the strong interfering cell and the own cell in different subframes First, it is determined that the base station of the current cell sends the scheduling subframe of the physical downlink control channel of multi-subframe scheduling to the terminal; or the physical uplink control channel of the strong interference cell and the current cell is allocated in a non-overlapping frequency band. 7. The multi-subframe scheduling method according to any one of claims 1-4, further comprising: During semi-persistent scheduling, the semi-persistent subframe scheduling interval is delivered to the terminal through high-layer signaling. 8. A multi-subframe scheduling method, comprising: Receive the continuous scheduling indication of multi-subframe scheduling sent by the base station, the HAR process number corresponding to the first scheduled subframe, and the scheduling configuration parameters; According to the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe and the continuous scheduling indication, obtain the hybrid automatic repeat transmission process number corresponding to the current scheduling subframe, and use the scheduling configuration parameters in the current scheduling subframe Carry out the data packet transmission of the corresponding hybrid automatic retransmission process number; Each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling adopts the scheduling configuration parameters; Wherein, the continuous scheduling instruction of multi-subframe scheduling sent by the receiving base station, the HAR process number corresponding to the first scheduling subframe, and scheduling configuration parameters include: receiving the high-level signaling sent by the base station and carrying the continuous scheduling indication, the high-level signaling is used to notify the terminal of the activation or cancellation of multi-subframe scheduling, and receiving the high-level signaling sent by the base station carrying the scheduling configuration parameters and the first Scheduling the physical downlink control channel of the hybrid automatic repeat process number corresponding to the subframe; or receiving the physical downlink control channel sent by the base station and carrying the continuous scheduling indication, the hybrid automatic repeat process number corresponding to the first scheduling subframe, and scheduling configuration parameters. 9. The multi-subframe scheduling method according to claim 8, further comprising: According to the received downlink transmission control information format in the physical downlink control channel, it is determined whether this scheduling is single-subframe scheduling or multi-subframe scheduling. 10. The multi-subframe scheduling method according to claim 8, wherein the data packet carried by each scheduled subframe of the multi-subframe scheduling is a newly transmitted data packet, and the method further comprises: If there is negative information in the feedback information of the newly transmitted data packet obtained by transmitting the newly transmitted data packet, receiving the retransmission resource indication signaling issued by the base station and including the hybrid automatic repeat process number corresponding to the negative information, and sending or receiving a retransmission data packet corresponding to the HAR process number sent by the base station to the base station in the retransmission subframe corresponding to the retransmission resource indication signaling. 11. A base station, characterized in that it comprises: The dispatching instruction sending module is used to send the continuous scheduling instruction of multi-subframe scheduling, the hybrid automatic retransmission process number corresponding to the first scheduling subframe, and the scheduling configuration parameters to the terminal; A data packet transmission module, configured to obtain the HARQ process number corresponding to the current scheduling subframe according to the HARQ process number corresponding to the first scheduling subframe and the continuous scheduling indication, and adopt the scheduling configuration parameters Perform data packet transmission corresponding to the hybrid automatic repeat process number in the current scheduling subframe; each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling Both adopt the scheduling configuration parameters; The dispatching instruction delivery module includes: The first sending submodule is configured to send high-level signaling carrying the continuous scheduling indication to the terminal, where the high-layer signaling is used to notify the terminal of starting or canceling multi-subframe scheduling, and send the high-level signaling to the terminal carrying the The physical downlink control channel of the HAR process number corresponding to the scheduling configuration parameters and the first scheduling subframe; and/or The second delivery sub-module is configured to deliver to the terminal a physical downlink control channel carrying the continuous scheduling indication, the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe, and scheduling configuration parameters. 12. The base station according to claim 11, further comprising any one or more of the following modules: A setting module, configured to set the continuous scheduling indication in newly added bits or reused bits of the physical downlink control channel, where the reused bits are redundant version fields or uplink resources in the downlink resource indication of the physical downlink control channel padding bits in the indication; A retransmission scheduling module, configured to send a message to the retransmission scheduling module if there is negative information in the feedback information obtained by transmitting the newly transmitted data packet when the data packet carried by each scheduled subframe of the multi-subframe scheduling is a newly transmitted data packet. The terminal issues the retransmission resource indication signaling carrying the hybrid automatic repeat process number corresponding to the negative information, and sends or receives the retransmission resource indication signaling to the terminal or receives the retransmission subframe corresponding to the retransmission resource indication signaling. Negate the retransmission data packet of the hybrid automatic retransmission process number corresponding to the information; A conflict processing module, configured to preferentially schedule the retransmitted data packet in the same scheduled subframe if the newly transmitted data packet and the retransmitted data packet are scheduled in the same scheduling subframe; A continuous retransmission module, configured to transmit multiple continuous negative information in the feedback information obtained by transmitting the newly transmitted data packet, and the retransmission resource indication signaling also includes all continuous negative information corresponding to the multiple continuous negative information. The number of retransmission subframes or the number of consecutive retransmission subframes after the first retransmission subframe; A strong interference processing module, configured to obtain information about adjacent cells from an interface between base stations, where the information about adjacent cells includes the frequency domain position occupied by the physical downlink control channel or the physical uplink control channel assigned by the base station of the adjacent cell, Sending time and/or transmitting power; according to the information of adjacent cells, obtain the information of the strong interfering cell whose interference level is greater than the set threshold, and according to the information of the strong interfering cell, control the physical downlink between the strong interfering cell and the own cell The channel is coordinated and allocated on different subframes, and the base station of this cell is determined to send the scheduling subframe of the physical downlink control channel of multi-subframe scheduling to the terminal; or the strong interference cell and the physical uplink control channel of this cell are coordinated and allocated on non-overlapping frequency bands; The semi-persistent scheduling module is configured to deliver the semi-persistent subframe scheduling interval to the terminal through high-level signaling during the semi-persistent scheduling. 13. A terminal, characterized in that, comprising: The scheduling indication receiving module is used to receive the continuous scheduling indication of multi-subframe scheduling sent by the base station, the hybrid automatic repeat transmission process number corresponding to the first scheduling subframe, and the scheduling configuration parameters; A data packet transmission module, configured to obtain the HARQ process number corresponding to the current scheduling subframe according to the HARQ process number corresponding to the first scheduling subframe and the continuous scheduling indication, and adopt the scheduling configuration parameters Perform data packet transmission corresponding to the hybrid automatic repeat process number in the current scheduling subframe; each scheduling subframe of the multi-subframe scheduling carries a data packet, and each scheduling subframe of the multi-subframe scheduling Both adopt the scheduling configuration parameters; The dispatch instruction receiving module includes: The first receiving submodule is configured to receive the high-level signaling sent by the base station and carrying the continuous scheduling indication, the high-level signaling is used to notify the terminal of starting or canceling the multi-subframe scheduling, and receive the high-level signaling sent by the base station and carrying the indicated The physical downlink control channel of the HAR process number corresponding to the above scheduling configuration parameters and the first scheduling subframe; and/or The second receiving submodule is configured to receive the physical downlink control channel sent by the base station and carrying the continuous scheduling indication, the HAR process number corresponding to the first scheduling subframe, and scheduling configuration parameters. 14. The terminal according to claim 13, further comprising: A determining module, configured to determine whether this scheduling is single-subframe scheduling or multi-subframe scheduling according to the received downlink transmission control information format in the physical downlink control channel; and/or A retransmission scheduling module, configured to: when the data packet carried by each scheduled subframe of the multi-subframe scheduling is a newly transmitted data packet, if there is negative information in the feedback information of the newly transmitted data packet obtained by transmitting the newly transmitted data packet receiving the retransmission resource indication signaling issued by the base station and including the hybrid automatic repeat process number corresponding to the negative information, and sending or receiving the retransmission resource indication signaling to the base station in the retransmission subframe corresponding to the retransmission resource indication signaling The retransmission data packet of the HAR process number corresponding to the negative information sent by the base station. 15. A multi-subframe scheduling system, comprising: The base station according to any one of claims 11-12 and the terminal according to any one of claims 13-14.