A method and device for transmitting control information

Abstract

The present application discloses a control information transmission method, comprising the following steps: a target DCI format used by PDCCH carries a feature identifier; a first value of the feature identifier indicates that a first field in the PDCCH contains information for indicating a set of cells to be scheduled; a second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of configurations to be activated or deactivated; the set of configurations includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets. The present application further includes an apparatus applying the method. The present application solves the problems of decreased performance and efficiency of control information and uncertain HARQ-ACK feedback time when activating or deactivating multiple sets of SPS configurations or multiple sets of configured grant PUSCHs.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and in particular, to a method and device for transmitting control information. Background Art

[0002] The Physical Downlink Control Channel (PDCCH) carries Downlink Control Information (DCI), which includes resource allocation and other control information for one or more User Equipments (UEs). The DCI is divided into different formats according to the type of indication information, and each format corresponds to a DCI information length or parsing method. Multiple DCI formats can share the same DCI length. The UE needs to decode all possible DCI formats that may be transmitted on the candidate PDCCHs. Therefore, the more DCI formats there are, the greater the complexity of blind detection. The UE can monitor DCI formats with the same length in one blind detection process. To limit the complexity of the UE's blind detection of the PDCCH, the total number of different-sized DCIs detected by each UE is restricted. Referring to 3GPP TS38.211 V17.0.0, the NR system currently supports three DCI formats for scheduling the Physical Downlink Shared Channel (PDSCH): DCI format 1_0, DCI format 1_1, and DCI format 1_2, and three DCI formats for scheduling the Physical Uplink Shared Channel (PUSCH): DCI format 0_0, DCI format 0_1, and DCI format 0_2. These 6 DCIs are used to schedule the PDSCH or PUSCH of a cell. Each PDCCH contains a Cyclic Redundancy Check (CRC) to enable the UE to verify whether the received PDCCH is correct.

[0003] DCI format 1_0, DCI format 1_1, and DCI format 1_2 are used for the PDCCHs that activate / deactivate the SPS PDSCH and the PDCCHs that dynamically schedule the PDSCH. DCI format 0_0, DCI format 0_1, and DCI format 0_2 are used for the PDCCHs that activate / deactivate the configured grant PUSCH and the PDCCHs that dynamically schedule the PUSCH, and are all only used for one cell. For a cell, the required fields for the scheduling indications of the two PDSCHs are basically the same. The special status of individual fields in the DCI is used to distinguish whether the current PDCCH is used to activate / deactivate the SPS PDSCH or to dynamically schedule the PDSCH. Taking DCI format 1_1 as an example, the preset values of the "DCI format indication field", "NDI field", "DFI flag field", "PDSCH-to-HARQ_feedback field", etc. are used to distinguish the two PDCCHs.

[0004] To meet various service requirements, it is supported to configure N (N≥2) sets of SPS configurations and M (M≥2) sets of configured grants for PUSCH for the UE. Taking the UE configured with N sets of SPS as an example, according to the existing technology, after the UE obtains the SPS configuration information, if the base station wants to activate the SPS configuration for the UE, it will send the PDCCH of any one of DCI format 1_0, DCI format 1_1, and DCI format 1_2 to the UE, and the CRC of this PDCCH is scrambled with CS-RNTI.

[0005] When the UE supports carrier aggregation, one scheduling indication method is to separately send PDCCHs carrying DCI format 1_0, 1_1, 1_2, 0_0, 0_1, or 0_2 for the scheduled carriers. Another scheduling indication method is to design a new DCI format 0_X for scheduling multiple PUSCHs on multiple cells, and design a new DCI format 1_X for scheduling multiple PDSCHs on multiple cells. Among them, the transport blocks carried by the respective PUSCHs scheduled by the DCI format 0_X are independent of each other, and the transport blocks carried by the respective PDSCHs scheduled by the DCI format 1_X are independent of each other.

[0006] If the UE is configured with K sets of SPS PDSCH configurations, activating these configurations requires sending K PDCCHs using DCI format 1_0, DCI format 1_1, or DCI format 1_2. Similarly, if the UE is configured with L sets of configured grants for PUSCH, activating these configurations requires sending L PDCCHs using DCI format 0_0, DCI format 0_1, or DCI format 0_2. On the one hand, the efficiency of the downlink control information is very low. The UE needs to blindly detect K / L PDCCHs, and the blind detection complexity is also relatively high. Especially in the case where the SPS PDSCH configuration / configured grant for PUSCH is used for the time-sensitive network, separate activation may affect the delay performance of the service. Summary of the Invention

[0007] This application proposes a method and device for transmitting control information. This application solves the problem of the performance and efficiency decline of control information when activating and deactivating multiple sets of SPS configurations or multiple sets of configured grants for PUSCH in the existing technology. Furthermore, the present invention also solves the problem of the uncertain HARQ-ACK feedback time when activating / deactivating multiple sets of SPS configurations using the DCI format 1_X.

[0008] In a first aspect, this application proposes a method for transmitting control information, including:

[0009] The target DCI format used by the PDCCH carries a feature identifier; the first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of scheduled cells; the second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets.

[0010] The method according to any one of the embodiments of the first aspect of the present application, for a network device, includes the following steps:

[0011] Transmit a PDCCH, where the target DCI format used by the PDCCH carries a feature identifier;

[0012] The first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of scheduled cells;

[0013] The second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets;

[0014] Determine a response corresponding to the PDCCH according to the first field, and transmit data of the set of cells and / or the configuration set.

[0015] The method according to any one of the embodiments of the first aspect of the present application, for a terminal device, includes the following steps:

[0016] Receive a PDCCH, where the target DCI format used by the PDCCH carries a feature identifier;

[0017] The first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of scheduled cells;

[0018] The second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets;

[0019] Determine a set of cells for transmitting data according to the first field, or activate or deactivate data of the configuration set.

[0020] Preferably, in the method according to any one of the embodiments of the first aspect of the present application, the feature identifier is an RNTI, and the RNTI is used to scramble the CRC of the PDCCH.

[0021] Preferably, in the method according to any one of the embodiments of the first aspect of the present application, the first field includes the feature identifier.

[0022] Preferably, in the method according to any one of the embodiments of the first aspect of the present application, the target DCI format further includes a second field. The first value of the feature identifier indicates that the second field is used to indicate the HARQ-ACK time for feedback of the cell set. The second value of the feature identifier indicates that the HARQ-ACK time corresponding to the configured set data corresponds to the respective base configuration values of the configured sets.

[0023] Preferably, in the method according to any one of the embodiments of the first aspect of the present application, the first field in the PDCCH is used to indicate the activated configured set. The configured set data is divided into M (M≥1) intervals, the start time of each interval is (W - 1)×P + T0 (W≥1), the length of the interval is P time units, where W is an integer greater than or equal to 1, P is N (N≥1) times the least common multiple of the respective periods of the configured sets, T0 is the start time of the first SPS PDSCH in the target configured set, the last SPS PDSCH in each interval is the reference PDSCH, and the HARQ-ACK corresponding to the SPS PDSCH in each interval is fed back at the corresponding target time unit. The target DCI format further includes a second field for indicating the time difference between the reference PDSCH and the corresponding target time unit.

[0024] In a second aspect, the present application further provides a network device for implementing the method according to any one of the embodiments of the first aspect of the present application. At least one module included in the network device is used to implement at least one of the following functions: determining the first value and / or the second value of the feature identifier; generating the feature identifier; sending the PDCCH; determining the response to the PDCCH; determining the HARQ-ACK time of the cell set data; determining the HARQ-ACK time of the configured set data; sending the PDSCH or receiving the PUSCH.

[0025] In a third aspect, the present application further provides a terminal device for implementing the method according to any one of the embodiments of the first aspect of the present application. At least one module included in the terminal device is used to implement at least one of the following functions: receiving the PDCCH; identifying the feature identifier; determining the first value and / or the second value of the feature identifier; determining the response to the PDCCH; determining the HARQ-ACK time of the cell set data; determining the HARQ-ACK time of the configured set data; sending the PUSCH or receiving the PDSCH.

[0026] The present application also provides a communication device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where when the computer program is executed by the processor, the steps of the method according to any one of the embodiments in the first aspect of the present application are implemented.

[0027] The present application also provides a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method according to any one of the embodiments in the first aspect of the present application are implemented.

[0028] The present application also provides a mobile communication system, including at least one network device according to any one of the embodiments of the present application and / or at least one terminal device according to any one of the embodiments of the present application.

[0029] The above at least one technical solution adopted in the embodiments of the present application can achieve the following beneficial effects:

[0030] The present application uses DCI format 0_X and DCI format 1_X for scheduling multiple PUSCH / PDSCH on multiple cells to activate / deactivate multiple sets of SPS configurations or multiple sets of configured grants for PUSCH. When supporting the detection of PDCCH using the target DCI format, it can solve the problems of low efficiency of control information, high UE blind detection complexity, and poor service latency performance of corresponding services when activating / deactivating multiple sets of SPS configurations or multiple sets of configured grants for PUSCH in the prior art. Moreover, the present invention effectively solves the problem of how to feedback the HARQ-ACK time when activating / deactivating multiple sets of SPS configurations with DCI format 1_X. Description of the Drawings

[0031] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0032] Figure 1 It is a timing diagram of HARQ-ACK feedback for SPS PDSCH;

[0033] Figure 2 It is a timing diagram of HARQ-ACK feedback for PDSCH scheduled by DCI format 1_X;

[0034] Figure 3 It is a flowchart of an embodiment of the method of the present application;

[0035] Figure 4 It is a schematic diagram of activating multiple SPS PDSCH by DCI format 1_X;

[0036] Figure 5Schematic diagram of HARQ-ACK time units for activating multiple SPS PDSCHs in the first DCI format 1_X;

[0037] Figure 6 Schematic diagram of HARQ-ACK time units for activating multiple SPS PDSCHs in the second DCI format 1_X;

[0038] Figure 7 Flowchart of an embodiment of the method of this application for a network device;

[0039] Figure 8 Flowchart of an embodiment of the method of this application for a terminal device;

[0040] Figure 9 Schematic diagram of an embodiment of a network device;

[0041] Figure 10 Schematic diagram of an embodiment of a terminal device;

[0042] Figure 11 Schematic diagram of the structure of a network device according to another embodiment of the present invention;

[0043] Figure 12 Block diagram of a terminal device according to another embodiment of the present invention. Detailed implementation manners

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0045] The following details the technical solutions provided by each embodiment of this application in conjunction with the drawings.

[0046] Figure 1It is a timing diagram of HARQ-ACK feedback for SPS PDSCH. In the prior art, when PDSCH is scheduled by PDCCH with DCI format 1_0, DCI format 1_1 or DCI format 1_2, it only corresponds to one PDSCH. The HARQ-ACK corresponding to the PDSCH sent in time unit n is fed back in time unit n+j, and the value of j is determined by the higher layer signaling "dl-DataToUL-ACK". If the higher layer signaling "dl-DataToUL-ACK" configures multiple values, the value of j is determined by the "PDSCH-to-HARQ-timing-indicator" in the DCI. If the PDCCH with DCI format 1_0, DCI format 1_1 or DCI format 1_2 is used to activate the SPS PDSCH, the value of j is applicable to the HARQ-ACK feedback of the current SPS PDSCH and all SPS PDSCHs sent periodically after activation. Figure 1 It means that the HARQ-ACK of the SPS PDSCH sent in time slot n+2(i-1) with an SPS period of 2 is fed back in time unit n+2(i-1)+j, where i≥1.

[0047] Taking the scheduling of multiple PDSCHs (PUSCHs) in multiple cells by DCI format 1_X (DCI format 0_X) as an example, the multiple cells scheduled by the PDCCH carrying this format of DCI can be indicated by the first field in the DCI. For example, the corresponding relationship between different values indicated by the first field and the indexes of the multiple scheduled cells is pre-configured. As shown in Table 1, taking the first field containing 3 bits as an example, the relationship between the pre-set first field and the cell scheduling mode combination is shown, where "√" indicates the scheduled cell. When the indicated value of the first field is 0, it means that currently only the PDSCH (PUSCH) on Cell1 is scheduled; when the indicated value of the first field is 5, it means that currently the PDSCH (PUSCH) on Cell1 and Cell3 are scheduled, and so on.

[0048] Table 1. Relationship between the first field of DCI format 1_X and the scheduled cells

[0049]

[0050] Alternatively, the first field contains N bits, each corresponding to a pre-set number of cells one by one. The cells corresponding to "1" and "0" in the N bits are the scheduled cells and the non-scheduled cells (or the non-scheduled cells and the scheduled cells), respectively.

[0051] When scheduling N (N≥2) PDSCHs with DCI format 1_X, to improve the feedback efficiency of HARQ-ACK, there is only one "PDSCH-to-HARQ-timing-indicator" field in DCI format 1_X. Correspondingly, a reference PDSCH needs to be determined, and the time of the reference PDSCH is used as the reference point for determining the HARQ-ACK feedback time corresponding to the N PDSCHs. Assume that the reference PDSCH is the one with the latest time among the N PDSCHs, located in time unit m. If the "PDSCH-to-HARQ-timing-indicator" field in DCI format 1_X indicates j, then the HARQ-ACK feedback times corresponding to the N PDSCHs are all located in time unit m + j.

[0052] Figure 2 The HARQ-ACK feedback timing diagram for scheduling PDSCH with DCI format 1_X is as follows. Figure 2 As shown in the example, the PDCCH using DCI format 1_X schedules PDSCH-1 (located in cell 1), PDSCH-2 (located in cell 1), PDSCH-3 (located in cell 2), and PDSCH-4 (located in cell 3). Assume that PDSCH-4 is the reference PDSCH, located in time unit m. The "PDSCH-to-HARQ-timing-indicator" field indicates j = 2, then the HARQ-ACK feedback times corresponding to the 4 PDSCHs are located in time unit m + 2 (located in cell 1).

[0053] The application scenario of this application is: for the interaction of control information between a network device (gNB) and a terminal device (UE). The DCI format in the embodiments of this application is any one of DCI format 1_X and DCI format 0_X. In this application, DCI format 1_X or DCI format 0_X is collectively referred to as the target DCI format. The following takes the target DCI format being DCI format 1_X as an example to illustrate. The inventive concept is: if the UE is configured to detect the target DCI format, the base station can indicate two situations through the target DCI format: one is to schedule multiple dynamic PDSCHs / PUSCHs; the other is to activate / deactivate multiple sets of SPS configurations or multiple sets of configured grant PUSCHs. There is a feature identifier in the target DCI format to identify which of the two situations it is currently. In this way, it is not necessary to use multiple PDCCHs to activate / deactivate multiple sets of SPS configurations or multiple sets of configured grant PUSCHs, so as to solve the problems of high UE blind detection complexity, poor corresponding service delay performance, and improve the efficiency of control information.

[0054] Figure 3 It is the flowchart of the embodiment of the method of this application.

[0055] The present application provides a control information transmission method, including:

[0056] Step 101, determining a first value and / or a second value of a feature identifier.

[0057] The first value of the feature identifier carried by the target DCI format indicates that the first field in the PDCCH contains information for indicating a cell set for scheduling; the second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets. Step 102, the DCI format used by the PDCCH carries the feature identifier.

[0058] Solution 1, preferably, the feature identifier is an RNTI, and the RNTI is used to scramble the CRC of the PDCCH. Optionally, the feature identifier of the target DCI format is an RNTI that scrambles the CRC of the PDCCH.

[0059] Each PDCCH contains a CRC check to enable the terminal device to verify whether the received PDCCH is correct, and the CRC is scrambled using a radio network temporary identifier RNTI related to the terminal device, so that the UE can detect and determine which PDCCHs it needs to receive. RNTIs include: C-RNTI, CS-RNTI, SI-RNTI, P-RNTI, RA-RNTI, etc. Each RNTI corresponds to a different use of the DCI information in the PDCCH. When the PDCCH using the target DCI format is scrambled with the RNTI of the first value, the PDCCH is used for dynamically scheduling data transmission on the target cell set. When the PDCCH using the target DCI format is scrambled with the RNTI of the second value, the data of the target configuration set is activated or deactivated.

[0060] Solution 2, preferably, the first field contains the feature identifier.

[0061] Step 103, the target DCI format used by the PDCCH contains information for indicating the data transmission feedback time of the cell set or the configuration set.

[0062] Preferably, the target DCI format further includes a second field. The first value of the feature identifier indicates that the second field is used to indicate the HARQ-ACK time of the cell set. The second value of the feature identifier indicates that the HARQ-ACK time corresponding to the data of the configuration set corresponds to the respective base configuration values of the configuration set. For specific embodiments, see Figures 4 - 6 .

[0063] To further illustrate the solutions of steps 101 to 103 above, the control information included in the PDCCH has at least one of the following two types:

[0064] Type 1: The common scheduling information of PUSCH / PDSCH on multiple scheduled cells is indicated by one field, or the respective scheduling information of PUSCH / PDSCH on multiple cells is indicated by one field.

[0065] Type 2: The respective scheduling information of PUSCH / PDSCH on multiple scheduled cells is indicated by multiple fields.

[0066] Based on the terminal device supporting the detection of the PDCCH using the target DCI format, the target DCI format is allowed to be used to activate / deactivate multiple sets of SPS configurations or multiple sets of configured grants for PUSCH. Since the control information for activating / deactivating multiple sets of SPS configurations or multiple sets of configured grants for PUSCH is comparable in length to the control information for scheduling the dynamic PDSCH / PUSCH on multiple cells, the case of using the same format to indicate the two types of control information will not increase the blind detection complexity of the terminal device. The terminal device determines whether the current PDCCH is scheduling multiple dynamic PDSCH / PUSCH or activating / deactivating multiple sets of SPS configurations or multiple sets of configured grants for PUSCH through the feature identifier of the target DCI format.

[0067] The feature identifier of the target DCI format can be a field of type 1 or a field of type 2. If the PDCCH is used for dynamically scheduling data transmission on the target cell set, as exemplified in Table 1, the target cell set is indicated by the information in the first field. If the PDCCH is used for activating or deactivating the data of the target configuration set, the target configuration set is also indicated by the information in the first field. For example, the corresponding relationship between different values indicated by the first field and the indexes of multiple sets of SPS configurations to be activated is preconfigured. Taking the first field containing 3 bits as an example, the relationship between the preset first field and the indexes of multiple sets of SPS configurations to be activated is shown in Table 2. When the indicated value of the first field is 0, it means that the currently activated SPS PDSCH has a configuration index of 0; when the indicated value of the first field is 5, it means that the currently activated SPS PDSCH has configuration indexes of 0 and 2, and so on.

[0068] Table 2. Relationship between the first field of DCI format 1_X and the indexes of the activated SPS PDSCH

[0069]

[0070] Optionally, the feature identifier of the target DCI format is the first field. An optional way is that the feature identifier of the target DCI format is the first field. For example, it is preconfigured that part of the values indicated by the first field indicate dynamic scheduling of data transmission for multiple cells, and the other part of the values indicate multiple sets of activated PS configurations. For example, as shown in Table 3,

[0071] Table 3. Relationship between the first field of DCI format 1_X and the scheduled cell / activated SPS PDSCH index

[0072]

[0073]

[0074] Preferably, the first field in the PDCCH is used to indicate the activated configuration set. The configuration set data is divided into M (M≥1) intervals. The start time of each interval is (W - 1)×P + T0 (W≥1), and the length of the interval is P time units, where W is an integer greater than or equal to 1, P is N (N≥1) times the least common multiple of the respective periods of the configuration sets, T0 is the start time of the first SPS PDSCH in the target configuration set, the last SPS PDSCH in each interval is the reference PDSCH, and the HARQ-ACK corresponding to the SPS PDSCH in each interval is fed back at the corresponding target time unit. The target DCI format further includes a second field for indicating the time difference between the reference PDSCH and the corresponding target time unit.

[0075] Figure 4 Schematic diagram for activating multiple SPS PDSCHs for DCI format 1_X.

[0076] Optionally, the target DCI format includes a second field; when the PDCCH is used to schedule data for the target cell set, the HARQ-ACK time for the data of the target cell set is determined using the second field; when the PDCCH is used to activate the data of the target configuration set, the HARQ-ACK time corresponding to the data of the target configuration set is determined using the respective base configuration values of the target configuration set.

[0077] As a comparison, as Figure 2 shown, when the PDCCH is used to determine the data for scheduling the target cell set, the second field is the "PDSCH-to-HARQ-timing-indicator" field of the target DCI format, which is used to determine the HARQ-ACK feedback time corresponding to the N scheduled PDSCHs. Since the dynamic scheduling of PDSCH transmission is one-time scheduling corresponding to one-time transmission, therefore Figure 2The method shown above can determine the time for HARQ-ACK feedback of N PDSCHs. However, when the PDCCH is used to activate the data of the target configuration set, it is difficult to determine the time for HARQ-ACK feedback for the activated SPS PDSCH transmission using the second field. This is because each of the K sets of SPSs activated by the PDCCH sends SPS PDSCHs multiple times according to a period, and how to determine the reference PDSCH is a problem to be solved. On the other hand, the K sets of SPS configurations are independently configured, and they have independent periods and time resources. After the K sets of SPS configurations are activated, they send data according to their respective periods. When the periods of the K sets of SPS configurations are different, how to use the second field to indicate the time for feedback of HARQ-ACK for each activated SPS PDSCH is also a problem to be solved. As Figure 4 shown, the period of the SPS-1 configuration is 2 time units, the period of the SPS-2 configuration is 3 time units, and the period of the SPS-4 configuration is 4 time units. After the PDCCH activates the SPS-1, SPS-2, and SPS-3 configurations, each configuration sends SPS PDSCHs according to the period, and the feedback time of HARQ-ACK corresponding to each SPS PDSCH needs to be determined.

[0078] Figure 5 Schematic diagram of the time unit for HARQ-ACK of multiple SPS PDSCHs activated by the first DCI format 1_X.

[0079] The first optional method is to determine the first PDSCH in the K sets of SPS configurations as the reference PDSCH. The first PDSCH is the SPS PDSCH at the set position activated within the first time interval. Preferably, the first PDSCH is the last SPS PDSCH activated within the first time interval. The length P of the first interval is N (N≥1) times the least common multiple of the respective periods of the K sets of SPS configurations, and the start time of the first interval is (W-1)×P+T0 (W≥1), where T0 is the start time of the first SPS PDSCH among the K sets of SPS configurations activated. Based on the determined time position of the reference PDSCH, the time position of HARQ-ACK is determined according to the duration j indicated by the second field. The time position of HARQ-ACK is j time units after the reference PDSCH and is used to feedback the HRAQ-ACK of all SPS PDSCHs within the same first interval. As follows Figure 4As shown, the start time of the first first interval is T0, and the length is the least common multiple of the SPS-1, SPS-2, and SPS-4 configurations respectively: 12 time units. The second field indicates a time interval of 3 time units. Using the SPS PDSCH that ends last within the first interval as the first PDSCH, and combining with the indication of the second time period, determine the HRAQ-ACK for all SPS PDSCHs within the same first interval at the target time unit. Using the last activated SPS PDSCH within the first time interval as the reference PDSCH can minimize the value range of the time difference between the PDSCH and the HARQ-ACK feedback in the second field, saving control information overhead. Moreover, determine the reference SPS PDSCH within the said first interval. Whether the periods of the K sets of SPS configurations after activation are the same or not, the time units for feedback HARQ-ACK can be determined for each SPS PDSCH, meeting the data transmission requirements under the SPS configuration.

[0080] Figure 6 Schematic diagram of the HARQ-ACK time units for activating multiple SPS PDSCHs in the second DCI format 1_X.

[0081] The second optional method is for the case where the PDCCH is used to activate the data of the target configuration set. The HARQ-ACK time units of the activated SPS PDSCHs are determined by the respective base configuration sets of the target configuration set. The network device and the terminal device preset the base configuration values of each SPS configuration of the target configuration set. For example, the base configuration value of the SPS-1 configuration is V1 = 1, the base configuration value of the SPS-2 configuration is V2 = 2, and the base configuration value of the SPS-3 configuration is V3 = 2. Then, the time difference between each SPS PDSCH of the SPS-1 configuration and the corresponding HARQ-ACK feedback time unit is V1, the time difference between each SPS PDSCH of the SPS-2 configuration and the corresponding HARQ-ACK feedback time unit is V2, and the time difference between each SPS PDSCH of the SPS-3 configuration and the corresponding HARQ-ACK feedback time unit is V3.

[0082] It should be noted that if the SPS configuration is activated by the PDCCH of other DCI formats, the method for determining the HARQ-ACK feedback time unit of the SPS PDSCH is independent of the method for determining the SPS HARQ-ACK feedback time unit in the case of activating the SPS configuration by the PDCCH of the target DCI format. The second method described here has nothing to do with the case of activating the SPS configuration by the PDCCH of other DCI formats.

[0083] Figure 7 Flowchart of an embodiment of the method of the present application for a network device.

[0084] The method according to any embodiment of the first aspect of this application, which is used for a network device, includes the following steps:

[0085] Step 201: Generate a feature identifier, which is used to parse the first field in the PDCCH.

[0086] The first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of scheduled cells.

[0087] The second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets

[0088] Step 202: Transmit the PDCCH, and the PDCCH carries the feature identifier using the target DCI format.

[0089] The manner in which the PDCCH carries the feature identifier is as described in step 102.

[0090] Step 203: Determine the response corresponding to the PDCCH according to the first field, and transmit the data of the set of cells and / or the configuration set.

[0091] For example, if the PDCCH schedules the PDSCH of a set of cells, the response is that the terminal device receives the PDSCH in these sets of cells. The response determined by the network device is to send the PDSCH in these sets of cells. If the PDCCH schedules the PUSCH of a set of cells, the response is that the terminal device is to send the PUSCH in these sets of cells. The response determined by the network device is to receive the PUSCH in these sets of cells.

[0092] For another example, when the PDCCH schedules the activation configuration set, the response determined by the network device is to receive the SPS PUSCH. When the PDCCH schedules the deactivation configuration set, the response determined by the network device is to stop receiving the SPS PUSCH.

[0093] For another example, when the PDCCH schedules the activation configuration set, the response determined by the network device is to send the SPS PDSCH; when the PDCCH schedules the deactivation configuration set, the response determined by the network device is to stop sending the SPS PDSCH.

[0094] Optionally, it further includes:

[0095] Step 204: Determine the feedback time for the data transmission of the set of cells or the configuration set according to the indication information in the second field.

[0096] The network device may also determine the second field according to the feature identifier. The first value of the feature identifier indicates that the second field is used to indicate the HARQ-ACK time of the cell set feedback. The second value of the feature identifier indicates that the HARQ-ACK time corresponding to the configured set data corresponds to the respective base configuration values of the configured sets.

[0097] Therefore, in step 204, the network device determines the HARQ-ACK time of the cell set feedback according to the second field and receives the HARQ-ACK feedback of the PDSCH. The network device determines the HARQ-ACK time corresponding to the configured set data according to the second field and receives the HARQ-ACK feedback of the SPS PDSCH.

[0098] Figure 8 The flowchart of the embodiment of the method of this application for the terminal device.

[0099] The method according to any one of the embodiments of the first aspect of this application, for a terminal device, includes the following steps:

[0100] Step 301, receive a PDCCH, where the target DCI format used by the PDCCH carries a feature identifier;

[0101] Step 302, identify the first value and / or the second value of the feature identifier.

[0102] The first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating the scheduled cell set;

[0103] The second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating the activated or deactivated configured set; the configured set includes at least two SPS configured sets and / or at least two configured grant PUSCH sets;

[0104] Step 303, determine the cell set for transmitting data according to the first field, or activate or deactivate the data of the configured set.

[0105] For example, if the PDCCH schedules the PDSCH of the cell set, the response of the terminal device is to receive the PDSCH in these cell sets. If the PDCCH schedules the PUSCH of the cell set, the response of the terminal device is to send the PUSCH in these cell sets.

[0106] For another example, if the PDCCH schedules to activate the configured set, the response of the terminal device is to activate and send the SPS PUSCH; if the PDCCH schedules to deactivate the configured set, the determined response of the terminal device is to deactivate and stop receiving the SPS PUSCH.

[0107] For another example, for the PDCCH scheduling activation configuration set, the response of the terminal device is to activate and receive the SPS PDSCH; for the PDCCH scheduling deactivation configuration set, the determined response of the terminal device is to deactivate and stop transmitting the SPS PDSCH.

[0108] Optionally, it further includes:

[0109] Step 304: The terminal device determines the cell set or configuration set data transmission feedback time according to the indication information in the second field.

[0110] The terminal device can also parse the second field according to the feature identifier. The first value of the feature identifier indicates that the second field is used to indicate the HARQ-ACK time of the cell set. The second value of the feature identifier indicates that the HARQ-ACK time corresponding to the configuration set data corresponds to the respective basic configuration values of the configuration sets.

[0111] Therefore, in step 304, the terminal device determines the HARQ-ACK time of the cell set according to the second field and sends the HARQ-ACK feedback of the PDSCH. The terminal device determines the HARQ-ACK time corresponding to the configuration set data according to the second field and sends the HARQ-ACK feedback of the SPS PDSCH.

[0112] Figure 9 It is a schematic diagram of a network device embodiment.

[0113] This application also proposes a network device for implementing the method described in any one of the embodiments of the first aspect of this application. At least one module included in the network device is used to implement at least one of the following functions: determining the first value and / or the second value of the feature identifier; generating the feature identifier; sending the PDCCH; determining the response to the PDCCH; determining the HARQ-ACK time of the cell set data; determining the HARQ-ACK time of the configuration set data; sending the PDSCH or receiving the PUSCH.

[0114] To implement the above technical solutions, a network device 400 proposed in this application includes a network sending module 401, a network determining module 402, and a network receiving module 403 that are interconnected.

[0115] The network sending module is used to generate the feature identifier, send the PDCCH carrying the feature identifier, and is also used to send the PDSCH.

[0116] The network determining module is used to determine the first value and the second value of the feature identifier, and is also used to determine the response to the PDCCH, determine the HARQ-ACK time of the cell set data, and determine the HARQ-ACK time of the configuration set data.

[0117] The network receiving module is configured to receive PUSCH and receive feedback on PDSCH.

[0118] The specific steps for implementing the functions involved in the network sending module, network determining module, and network receiving module are as described in the method embodiments of the present application and will not be elaborated here.

[0119] Figure 10 It is a schematic diagram of an embodiment of a terminal device.

[0120] The present application also provides a terminal device for implementing the method described in any one of the embodiments of the first aspect of the present application. At least one module included in the terminal device is configured to implement at least one of the following functions: receiving the PDCCH; identifying the feature identifier; determining the first value and / or the second value of the feature identifier; determining the response to the PDCCH; determining the HARQ-ACK time of the cell set data; determining the HARQ-ACK time of the configuration set data; sending PUSCH or receiving PDSCH.

[0121] To implement the above technical solutions, a terminal device 500 provided by the present application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503 that are interconnected.

[0122] The terminal receiving module is configured to receive the PDCCH, identify the feature identifier, and is further configured to receive PDSCH.

[0123] The terminal determining module is configured to determine the first value and the second value of the feature identifier; determine the response to the PDCCH, determine the HARQ-ACK time of the cell set data; determine the HARQ-ACK time of the configuration set data.

[0124] The terminal sending module is configured to send PUSCH and send feedback on PDSCH.

[0125] The specific steps for implementing the functions involved in the terminal sending module, terminal determining module, and terminal receiving module are as described in the method embodiments of the present application and will not be elaborated here.

[0126] The terminal device described in the present application may refer to a mobile terminal device.

[0127] Figure 11The structural schematic diagram of a network device according to another embodiment of the present invention is shown. As shown in the figure, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Among them, the wireless interface may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium. The wireless interface realizes the communication function with the terminal device, processes wireless signals through the receiving and transmitting devices, and the data carried by its signals communicates with the memory or the processor via an internal bus structure. The memory 603 contains a computer program for implementing any embodiment of the present application, and the computer program runs or changes on the processor 601. When the memory, the processor, and the wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be elaborated here.

[0128] Figure 12 The block diagram of a terminal device according to another embodiment of the present invention is shown. The terminal device 700 includes at least one processor 701, a memory 702, a user interface 703, and at least one network interface 704. Each component in the terminal device 700 is coupled together through a bus system. The bus system is used to realize the connection and communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0129] The user interface 703 may include a display, a keyboard, or a pointing device, for example, a mouse, a trackball, a touchpad, or a touch screen, etc.

[0130] The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. Among them, the operating system contains various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application programs contain various application programs, such as a media player, a browser, etc., for implementing various application services.

[0131] In an embodiment of the present invention, the memory 702 contains a computer program for implementing any embodiment of the present application, and the computer program runs or changes on the processor 701.

[0132] The memory 702 contains a computer-readable storage medium. The processor 701 reads the information in the memory 702 and combines its hardware to complete the steps of the above method. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 701, it realizes the steps of the method embodiment as described in any of the above embodiments.

[0133] The processor 701 may be an integrated circuit chip with the ability to process signals. In the implementation process, the steps of the method of this application can be completed by the integrated logic circuit of the hardware in the processor 701 or the instructions in the form of software. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by the combination of the hardware and software modules in the decoding processor.

[0134] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. In a typical configuration, the device of this application includes one or more processors (CPUs), an input / output user interface, a network interface, and a memory.

[0135] In addition, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0136] Therefore, this application also proposes a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the method described in any one of the embodiments of this application. For example, the memories 603 and 702 of the present invention may include non-permanent memories in the computer-readable medium, in the form of random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM).

[0137] Based on Figures 9 - 12 the embodiments, this application also proposes a mobile communication system, including at least one embodiment of any one of the terminal devices in this application and / or at least one embodiment of any one of the network devices in this application.

[0138] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, commodity or device comprising said element.

[0139] It should also be noted that the "first" and "second" in this application are used to distinguish multiple objects with the same name. Without specific description, they have no other special meaning.

[0140] The above are only embodiments of this application and are not intended to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A method for controlling information transmission, characterized in that, it includes: The target DCI format used by the PDCCH carries a feature identifier; The first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of scheduled cells; The second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets; The first field in the PDCCH is for indicating an activated configuration set; the configuration set data is divided into M (M≥1) intervals, the start time of each interval is (W - 1)×P + T0 (W≥1), the length of the interval is P time units, where W is an integer greater than or equal to 1, P is N (N≥1) times the least common multiple of the respective periods of the configuration sets, T0 is the start time of the first SPS PDSCH in the indicated activated configuration set, the last SPS PDSCH in each interval is the reference PDSCH, and the HARQ-ACK corresponding to the SPS PDSCH in each interval is fed back in the corresponding target time unit.

2. A method for controlling information transmission, for a network device, characterized in that, it includes the following steps: Send a PDCCH, the target DCI format used by the PDCCH carries a feature identifier; The first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of scheduled cells; The second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets; The first field in the PDCCH is for indicating an activated configuration set; the configuration set data is divided into M (M≥1) intervals, the start time of each interval is (W - 1)×P + T0 (W≥1), the length of the interval is P time units, where W is an integer greater than or equal to 1, P is N (N≥1) times the least common multiple of the respective periods of the configuration sets, T0 is the start time of the first SPS PDSCH in the indicated activated configuration set, the last SPS PDSCH in each interval is the reference PDSCH, and the HARQ-ACK corresponding to the SPS PDSCH in each interval is fed back in the corresponding target time unit; Determine the response corresponding to the PDCCH according to the first field, and transmit the data of the cell set and / or the configuration set.

3. A scheduling method in a wireless communication system, for a terminal device, characterized in that, it includes the following steps: Receive a PDCCH, the target DCI format used by the PDCCH carries a feature identifier; The first value of the feature identifier indicates that the first field in the PDCCH contains information for indicating a set of scheduled cells; The second value of the feature identifier indicates that the first field in the PDCCH contains information for indicating an activation or deactivation configuration set; the configuration set includes at least two SPS configuration sets and / or at least two configured grant PUSCH sets; The first field in the PDCCH is for indicating an activation configuration set; the configuration set data is divided into M (M≥1) intervals, the start time of each interval is (W - 1)×P + T0 (W≥1), the length of the interval is P time units, where W is an integer greater than or equal to 1, P is N (N≥1) times the least common multiple of the respective periods of the configuration sets, T0 is the start time of the first SPS PDSCH in the indicated activation configuration set, the last SPS PDSCH in each interval is the reference PDSCH, and the HARQ-ACK corresponding to the SPS PDSCH in each interval is fed back in the target time unit corresponding thereto; Determine the cell set for transmitting data according to the first field, or activate or deactivate the data of the configuration set.

4. The method according to any one of claims 1 to 3, wherein, the feature identifier is an RNTI, and the RNTI is used to scramble the CRC of the PDCCH.

5. The method according to any one of claims 1 to 3, wherein, the first field contains the feature identifier.

6. The method according to any one of claims 1 to 3, wherein, the target DCI format further includes a second field; the first value of the feature identifier indicates that the second field is for indicating the HARQ-ACK time for feeding back the cell set; the second value of the feature identifier indicates that the HARQ-ACK time corresponding to the configuration set data corresponds to the respective basic configuration values of the configuration sets.

7. The method according to any one of claims 1 to 3, wherein, the target DCI format further includes a second field for indicating the time difference between the reference PDSCH and the target time unit corresponding thereto.

8. A network device for implementing the method according to any one of claims 1 to 2, 4 to 7, wherein, at least one module included in the network device is used to implement at least one of the following functions: determining the first value and / or the second value of the feature identifier; generating the feature identifier; sending the PDCCH; determining the response to the PDCCH; determining the HARQ-ACK time of the cell set data; determining the HARQ-ACK time of the configuration set data; sending a PDSCH or receiving a PUSCH.

9. A terminal device for implementing the method according to any one of claims 1, 3 to 7, wherein, At least one module included in the terminal device is used to implement at least one of the following functions: receiving the PDCCH; identifying the feature identifier; determining a first value and / or a second value of the feature identifier; determining a response to the PDCCH; determining the HARQ-ACK time of cell set data; determining the HARQ-ACK time of the configuration set data; transmitting a PUSCH or receiving a PDSCH.

10. A communication device, characterized in that, it includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, it implements the steps of the method according to any one of claims 1 to 7.

11. A computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 7.

12. A mobile communication system, including at least one network device according to claim 8 and / or at least one terminal device according to claim 9.

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