Scheduling method and device, and computer-readable storage medium

Abstract

A scheduling method and apparatus, as well as a computer-readable storage medium, are disclosed. The scheduling method includes: reporting common channel state information, where the common channel state information represents channel state information corresponding to N serving cells, where N is greater than or equal to 2; and determining a search space set to be detected based on the number of serving cells using the common channel state information. Using this solution, a UE can use one common channel state information to represent the channel state information of multiple serving cells, and an access network device can use one DCI to schedule multiple serving cells, thereby improving channel state information reporting and scheduling efficiency.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to a scheduling method and device, and a computer-readable storage medium. Background Art

[0002] In mobile communication systems, to improve data transmission efficiency, appropriate transmission parameters are selected based on channel quality. Typically, access network equipment configures UEs to report channel state information. In carrier aggregation scenarios, UEs can be configured to report channel state information for all serving cells.

[0003] When a UE reports the channel state information corresponding to each serving cell, it needs to report the channel state information of each serving cell separately. The access network equipment also needs to schedule each serving cell based on the channel state information of each serving cell. The efficiency of UE reporting channel state information and the corresponding scheduling of the base station are both low. Summary of the Invention

[0004] The embodiments of the present invention solve the technical problem that the UE reports channel state information and the corresponding scheduling efficiency of access network equipment is low.

[0005] To solve the above technical problems, an embodiment of the present invention provides a scheduling method, including: reporting common channel state information, where the common channel state information is used to represent the channel state information corresponding to N service cells; N≥2; and determining the search space set that needs to be detected based on the number of service cells that use the common channel state information.

[0006] Optionally, after determining the search space sets that need to be detected, the method further includes: adjusting the order of the search space sets that need to be detected according to the number of serving cells that adopt the common channel state information.

[0007] Optionally, the adjustment of the order of the search space sets that need to be detected includes: if the total number of blind detections of downlink control information corresponding to different search space sets exceeds the maximum processing capacity, detecting K search space sets in the different search space sets in order from high to low according to the number of scheduled service cells; K<N.

[0008] Optionally, the maximum number of serving cells for downlink control information scheduling in the search space concentration that needs to be detected is equal to the number of serving cells that adopt the common channel state information.

[0009] Optionally, before determining the search space set that needs to be detected based on the number of service cells that adopt the common channel state information, it also includes: detecting downlink control information on different search space sets; the downlink control information on the different search space sets is used to schedule a corresponding number of service cells, and the bit length corresponding to the downlink control information is positively correlated with the number of scheduled service cells.

[0010] Optionally, determining the search space set that needs to be detected based on the number of service cells that adopt the common channel state information includes: in time slot n+k, determining the search space set that needs to be detected based on the number of service cells that adopt the common channel state information; wherein, time slot n is the time slot for reporting the common channel state information, and k is a fixed value.

[0011] Optionally, k is 2 or 3.

[0012] Optionally, before reporting the common channel state information, configuration information of the search space set is received; the configuration information includes: the number of scheduled service cells corresponding to different search space sets or the number of bits for transmitting downlink control information on the search space set.

[0013] An embodiment of the present invention also provides a scheduling device, including: a reporting unit for reporting common channel state information, wherein the common channel state information is used to represent the channel state information corresponding to N service cells; N≥2; a determination unit for determining the search space set that needs to be detected based on the number of service cells using the common channel state information.

[0014] An embodiment of the present invention also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned scheduling methods are executed.

[0015] An embodiment of the present invention further provides another scheduling device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of any of the above-mentioned scheduling methods when running the computer program.

[0016] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0017] The UE reports common channel state information, using one common channel state information to represent the channel state information of multiple serving cells. After receiving the common channel state information, the access network device can use one DCI to schedule multiple serving cells, improving the efficiency of channel state information reporting and access network device scheduling.

[0018] Furthermore, after reporting the common channel state information, the UE determines the search space set that needs to be detected according to the number of serving cells that use the common channel state information, thereby improving the monitoring efficiency of the search space set. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a flowchart of a scheduling method in an embodiment of the present invention;

[0020] Figure 2 is a flow chart of another scheduling method in an embodiment of the present invention;

[0021] Figure 3 is a structural diagram of a scheduling device in an embodiment of the present invention;

[0022] Figure 4 It is a structural diagram of another scheduling device in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In the prior art, a single Downlink Control Information (DCI) can schedule uplink and downlink data transmission for multiple serving cells. One possible approach is to include independent uplink and downlink transmission parameters for each cell in the DCI. Another possible approach is to include common uplink and downlink transmission parameters for multiple cells in the DCI, such as a common Modulation and Coding Scheme (MCS) applicable to multiple serving cells.

[0024] However, when using existing channel state information feedback mechanisms, it is difficult to apply scheduling mechanisms that carry the same uplink and downlink parameters common to multiple cells in a single DCI. For example, if a UE measures a high CQI for one serving cell and a low CQI for another serving cell, the access network equipment cannot select the appropriate common MCS and PMI (Precoding Matrix Indicator) to provide services for the UE's transmission. This results in low efficiency for both the UE's reporting of channel state information and the base station's corresponding scheduling.

[0025] In this embodiment of the present invention, the UE reports common channel state information, using a single piece of common channel state information to represent the channel state information of multiple serving cells. After receiving the common channel state information, the access network device can use a single DCI to schedule multiple serving cells, improving both channel state information reporting efficiency and access network device scheduling efficiency. After reporting the common channel state information, the UE determines the search space set to be monitored based on the number of serving cells using the common channel state information, thereby improving the monitoring efficiency of the search space set.

[0026] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] The embodiment of the present invention provides a scheduling method, referring to Figure 1 , the following is a detailed description through specific steps.

[0028] In an embodiment of the present invention, the scheduling method corresponding to the following steps S101 to S102 can be executed by a chip with data processing function in the UE (such as a baseband chip); or, it can also be executed by a chip module in the UE, which includes the above-mentioned chip with data processing function.

[0029] Step S101: reporting public channel status information.

[0030] In a specific implementation, the UE accesses the primary cell (PCell) and establishes a radio resource control (RRC) connection. After the RRC connection is completed, a data radio bearer is established to start data transmission.

[0031] The access network equipment can learn about the UE's service requirements and capabilities and configure N serving cells for the UE. These N serving cells can include one primary cell and N-1 secondary cells. The access network equipment can also configure channel state information reporting for the UE, enabling the UE to report channel state information for different serving cells, including the report content and the time-frequency resources occupied when reporting the channel state information.

[0032] In this embodiment of the present invention, the UE may measure and obtain channel state information corresponding to N serving cells based on the configuration of the access network device. The channel state information may include one or more of a channel quality indicator (CQI), a precoding matrix indicator (PMI), and a rank indicator (RI).

[0033] Specifically, the specific process of the UE acquiring the channel state information of multiple serving cells may refer to the existing protocol, and will not be described in detail in the embodiment of the present invention.

[0034] After obtaining the channel state information corresponding to each of the N serving cells, the UE can determine whether the channel state information of the N serving cells meets the convergence standard, that is, whether the channel state information of the N serving cells can be characterized by a common channel state information.

[0035] If the channel state information of the N serving cells can be represented by one common channel state information, the common channel state information is reported. In this case, one common channel state information is used to represent the channel state information of the N serving cells.

[0036] Therefore, the UE only needs to report one piece of common channel state information, rather than reporting the channel state information corresponding to N serving cells one by one, which can effectively save uplink signaling overhead. It should be noted that the common channel state information may include one or more of the following: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Rank Indicator (RI), etc.

[0037] In the embodiments of the present invention, the common channel state information may mean that each serving cell uses the channel state information to implement scheduling and subsequently carry out data transmission, and the corresponding transmission performance can meet preset requirements. The preset requirements can be requirements for normal communication functions, and the corresponding indicators such as transmission capacity loss and bit error rate are within a tolerable range.

[0038] For example, serving cell 1 corresponds to channel state information 1, and serving cell 2 corresponds to channel state information 2. If the transmission capacity of serving cell 1 when scheduling a UE using channel state information 2 is 95% of the transmission capacity when scheduling the UE using channel state information 1, and the bit error rate when using channel state information 2 is 3% higher than the bit error rate when using channel state information 1, and the preset requirements are a 10% loss in transmission capacity and a bit error rate difference of less than 5%, it can be determined that serving cell 1 and serving cell 2 can use common channel state information.

[0039] In an embodiment of the present invention, if the common channel state information only includes CQI, and the differences between the CQIs corresponding to the N service cells are all within a preset range, it can be determined that the channel state information corresponding to the N service cells can be represented by the common channel state information, and then one CQI can be selected from them as the common channel state information, or the average of these N CQIs can be used as the common channel state information and reported.

[0040] If the UE reports common channel state information, the access network device can use the common channel state information to schedule N serving cells after receiving the common channel state information. The access network device can use one DCI to simultaneously schedule some or all of the N serving cells for uplink and / or downlink data transmission with the UE.

[0041] In a specific implementation, if the channel state information corresponding to N serving cells cannot be represented by a single common channel state information, the channel state information of the N serving cells can be reported separately for each of the N serving cells. After receiving the common channel state information of the N serving cells, the access network device uses a DCI scheduling for each serving cell.

[0042] That is to say, if there is a scheduling requirement, N DCI scheduling can be used for N serving cells.

[0043] In a specific implementation, when the channel state information corresponding to N serving cells cannot be represented by a single common channel state information, the channel state information of M serving cells may be represented by a single common channel state information, but the channel state information of the remaining NM serving cells cannot be represented by the common channel state information. In this case, the UE can report the common channel state information, which is used to represent the channel state information of the M serving cells. In addition, the UE can independently report the channel state information of the remaining NM serving cells.

[0044] After receiving the common channel state information and the channel state information of NM serving cells, the access network device uses one DCI to schedule the transmission resources of the M serving cells that use common channel state information reporting. For the NM serving cells that do not use common channel state information reporting, if there is a scheduling requirement, NM DCIs can be used to schedule the transmission resources of multiple serving cells respectively.

[0045] For example, N = 4, M = 3. The channel state information of serving cells SCell1, SCell2, and SCell3 can be represented by common channel state information. This common channel state information cannot be used to represent serving cell SCell4. The access network device uses one DCI to schedule (transmission resources for) SCell1, SCell2, and SCell3, and another DCI to schedule (transmission resources for) SCell4.

[0046] It should be noted that, in specific applications, as the wireless channel environment changes, the channel state information of the serving cells obtained by the UE at different times may change. For example, at time T0, the channel state information of only M of the N serving cells can be represented by common channel state information. However, at time T1, the channel state information of all N serving cells can be represented by common channel state information.

[0047] For the above application scenario, for scheduling at time T0, the access network device can use one DCI to schedule M serving cells whose channel state information uses common channel state information, and use NM DCIs to schedule the remaining NM serving cells respectively. For scheduling at time T1, the access network device can use one DCI to schedule N serving cells whose channel state information uses common channel state information.

[0048] That is, in the embodiment of the present invention, the scheduling of the access network device can be adjusted accordingly as time changes.

[0049] The scheduling method provided in the above embodiment of the present invention is described below through specific examples.

[0050] The UE accesses the primary cell (PCell), establishes a data radio bearer, and transmits data. Taking into account the UE's service needs and capabilities, the UE is configured with five serving cells: the PCell and four secondary cells (SCells) (SCell1, SCell2, SCell3, and SCell4).

[0051] The access network device configures a channel state information reporting configuration for the UE. The reporting configuration is used to instruct the UE to report the channel state information of different serving cells (such as the content of the report) and the video position of the resources occupied when reporting the channel state information.

[0052] In this embodiment, the access network device can first configure whether the UE can use common channel state information for channel feedback, and / or configure which service cells can use common channel state information for channel feedback. If the access network device is only configured to use common channel state information for feedback, the default is for all service cells or all activated service cells.

[0053] Here, taking the example of the access network device configuring the UE to use common channel state information for feedback on four secondary cells, after receiving the configuration information, the UE determines whether the channel state information corresponding to the four secondary cells can be represented using common channel state information. The conditions for using common channel state information are: the difference between the CQIs corresponding to any two secondary cells in the channel state information corresponding to the four secondary cells is within a preset difference threshold, or the difference between the CQI corresponding to any secondary cell and the common channel state information is within a preset difference threshold.

[0054] If the UE detects that the CQIs corresponding to the four secondary cells can be represented by common channel state information, the UE can report the common channel state information. After receiving the common channel state information, the access network device can use a single DCI to schedule the four secondary cells to transmit uplink and / or downlink data to the UE based on the common channel state information.

[0055] On the contrary, if the UE detects that the CQIs corresponding to the four secondary cells cannot be represented by the above-mentioned common channel state information, that is, the difference between the CQIs corresponding to at least two secondary cells is greater than the preset difference threshold, one of the solutions is: Solution 1, the UE can report the CQIs of the four secondary cells separately.

[0056] At this time, the access network device schedules transmission resources according to the CQIs corresponding to the four secondary cells, using one DCI to schedule one serving cell. That is, for the four secondary cells, the access network device uses four DCIs for scheduling.

[0057] If the UE detects that the CQIs corresponding to the four secondary cells cannot be represented by the above-mentioned common channel state information, that is, the difference between the CQIs corresponding to at least two of the secondary cells is greater than the preset difference threshold, another solution is: Solution 2, if among the CQIs corresponding to the four secondary cells, the CQIs corresponding to three secondary cells (SCell1, SCell2, SCell3) can be represented by common channel state information, when reporting the common channel state information, the CQIs corresponding to SCell1, SCell2, and SCell3 are represented by the common channel state information. At this time, the UE needs to indicate not only the common channel state information when reporting, but also the cell information of SCell1, SCell2, and SCell3; and report the CQI corresponding to SCell4 separately.

[0058] At this time, the access network device uses one DCI to simultaneously schedule three secondary cells (SCell1, SCell2, SCell3) to transmit uplink and / or downlink data with the UE based on the common channel state information, and uses another DCI to schedule the secondary cell SCell4 to transmit uplink and downlink data with the UE.

[0059] It should be noted that in specific applications, the channel quality of the wireless channel is time-varying. For example, at time T0, the CQI corresponding to four secondary cells evaluated by the UE cannot be represented by common channel state information, but the CQI corresponding to three of the secondary cells can be represented by common channel state information. At time T1, the CQI corresponding to the four secondary cells evaluated by the UE can be represented by common channel state information.

[0060] In this embodiment of the present invention, for the above scenario, the CQI reporting strategy can be adjusted dynamically in real time. Specifically, if the CQIs corresponding to the four secondary cells can be represented by common channel state information, the common channel state information is reported; if the CQIs corresponding to the four secondary cells cannot be represented by common channel state information, the above solution 1 or solution 2 can be implemented.

[0061] As can be seen, the UE reports common channel state information, using a single piece of common channel state information to represent the channel state information of multiple serving cells. After receiving the common channel state information, the access network device can use a single DCI to schedule some or all of the multiple serving cells, improving the efficiency of channel state information reporting and access network device scheduling.

[0062] Step S102: determining a search space set to be detected according to the number of serving cells using the common channel state information.

[0063] In a specific implementation, after reporting the common channel state information, the UE may also detect DCI on different search space sets.

[0064] Access network equipment can use DCI to schedule different numbers of serving cells at different times. When the bit length of DCI changes with the number of scheduled serving cells, the access network equipment can configure different search space sets to schedule DCI for different numbers of serving cells. The UE can detect DCI in different search space sets, obtain the DCI bit length, and then determine the number of serving cells scheduled by the DCI.

[0065] In the embodiment of the present invention, DCI on different search space sets can be used to schedule a corresponding number of serving cells, and the bit length corresponding to the DCI is positively correlated with the number of serving cells scheduled by the DCI.

[0066] For example, when the bit length of DCI is 30 bits, the corresponding number of scheduled service cells is 2; when the bit length of DCI is 35 bits, the corresponding number of scheduled service cells is 3; when the bit length of DCI is 40 bits, the corresponding number of scheduled service cells is 4.

[0067] Therefore, the UE can determine the number of serving cells scheduled by the DCI according to the acquired DCI length.

[0068] The number of times a UE can detect DCI within a timeslot is limited and typically depends on the UE's capabilities. The access network device can configure the number of times a UE detects downlink control information in different search space sets within a timeslot, also known as the number of DCI blind detections (PDCCH detections or blind detections), based on the UE's capabilities. Typically, a UE detects its own DCI (e.g., DCI scrambled with its own C-RNTI) in different search space sets based on the access network device's configuration.

[0069] In an embodiment of the present invention, since the UE can report whether multiple service cells can use the common channel status information, and the number of service cells corresponding to the common channel status information used by the UE at different times may be different, the UE can also determine the search space set that needs to be detected based on the number of service cells corresponding to the reported common channel status information, and / or adjust the search order of the search space set that needs to be detected.

[0070] In an embodiment of the present invention, the maximum number of carriers scheduled by DCI in a search space set that the UE needs to detect (i.e., the number of serving cells) may be equal to the number of serving cells represented by the common channel state information. In one embodiment, when configuring a search space set, the access network device directly sets the number of serving cells corresponding to the search space set, i.e., the number of serving cells scheduled by DCI in the search space set, which may be indicated by a serving cell identifier. For example, if the serving cells scheduled by DCI in a search space set are SCell1 and SCell2, then the number of serving cells scheduled by DCI in the search space set is 2.

[0071] The access network device configures parameters such as the detection period, detection position within the detection period, DCI format (format), aggregation level (AggregationLevel), and number of detections (nrofCandidates) required by the UE in a search space set.

[0072] In a serving cell, the access network device configures the following five search space sets:

[0073] Search space set 1: The DCI format that the UE needs to detect is DCI 0_1 (uplink scheduling), the DCI size that needs to be detected is X1 bits (corresponding to scheduling of one carrier. When only one carrier is scheduled, X1 can be omitted). The number of detections is 8;

[0074] Search space set 2: The DCI format that the UE needs to detect is DCI 0_1 (uplink scheduling), the DCI size that needs to be detected is X2 bits (corresponding to scheduling of two carriers), and the number of detections is 6;

[0075] Search space set 3: The DCI format that the UE needs to detect is DCI 0_1 (uplink scheduling), the DCI size that needs to be detected is X3 bits (corresponding to scheduling of three carriers), and the number of detections is 4;

[0076] Search space set 4: The DCI format that the UE needs to detect is DCI 0_1 (uplink scheduling), the DCI size that needs to be detected is X4 bits (corresponding to scheduling of 4 carriers), and the number of detections is 4;

[0077] Search space set 5, the DCI format that the UE needs to detect is DCI 1_1 (downlink scheduling), the DCI size that needs to be detected is X5 bits (corresponding to the scheduling of one carrier. When only one carrier is scheduled, X5 may not be indicated), and the number of detections is 8.

[0078] During uplink scheduling, at time T0, the UE detects that four secondary cells cannot be represented using common channel state information. The UE reports the channel state information of each of the four serving cells. The UE monitors Search space set 1 and Search space set 5. After a period of time, the UE detects that three serving cells can be represented using common channel state information. The UE reports the common channel state information corresponding to these three serving cells in time slot n and modifies the search space set for DCI monitoring. At this point, the UE needs to monitor Search space set 3 and Search space set 5.

[0079] It should be noted that, considering the processing time of the access network equipment, the UE will modify the search space set for DCI monitoring in time slot n+k, where k is a fixed value, such as 2, 3, or other values.

[0080] Correspondingly, at other times, after the UE detects that other numbers of serving cells can be represented and reported using common channel state information, the search space set for DCI monitoring can be modified accordingly, so as to quickly respond to the scheduling of the access network device.

[0081] In specific implementations, the common channel state information reported by the UE represents the channel state information corresponding to multiple serving cells. When scheduling, the access network device may also consider the actual amount of data to be transmitted and determine how many serving cells to schedule using a single DCI based on the data volume. If the amount of data to be transmitted is large, the access network device may use a single DCI to schedule a larger number of serving cells; if the amount of data to be transmitted is small, the access network device may use a single DCI to schedule a smaller number of serving cells.

[0082] That is, the number of DCI-scheduled serving cells in the search space set that the UE needs to detect is not greater than the number of serving cells corresponding to the common channel state information.

[0083] For example, the common channel state information represents the channel state information corresponding to four service cells. The access network device determines to schedule three service cells based on the amount of data that needs to be transmitted. The access network device uses one DCI to schedule the transmission resources of the three service cells. At this time, the DCI needs to clearly indicate which three service cells' transmission resources are scheduled. Considering the limitation of the transmission bits in the DCI, a bitmap can be used to indicate which three service cells' transmission resources are scheduled. In this embodiment, because the common channel state information represents the channel state information corresponding to the four service cells, a 4-bit bitmap can be used to indicate the scheduled service cells. For example, when it is set to 1101, it indicates that the first, second, and fourth service cells are scheduled; if it is set to 1011, it indicates that the first, third, and fourth service cells are scheduled.

[0084] When the UE detects different search space sets, if the total number of monitoring times corresponding to the different search space sets exceeds the UE's current maximum processing capability, the UE may detect K search space sets in the different search space sets in descending order of the number of scheduled serving cells, where K < N. In other words, if the total number of monitoring times corresponding to the different search space sets exceeds the UE's current maximum processing capability, the UE may detect only some of the search space sets in the different search space sets.

[0085] The search space set configured by the access network device is configured as shown in the above example. The UE is configured with five serving cells, namely PCell, and four secondary cells SCell (SCell1, SCell2, SCell3 and SCell4).

[0086] The UE reports the common channel status information used by the four secondary cells. When scheduling, the access network equipment also needs to consider the actual amount of data to be transmitted. If the amount of data to be transmitted is large, a single DCI can be used to schedule multiple secondary cells. For example, a single DCI can be used to schedule four secondary cells.

[0087] Accordingly, if the amount of data to be transmitted is small, one DCI can be used to schedule fewer secondary cells, rather than four. In other words, the number of serving cells that can be scheduled by DCI in the search space set that the UE needs to monitor is no greater than the number of serving cells that use common channel state information.

[0088] For example, one DCI is used to schedule two secondary cells; or one DCI is used to schedule three secondary cells.

[0089] Assume that the UE needs to monitor Search space set 1, Search space set 2, Search space set 3, Search space set 4, and Search space set 5. If the UE finds that simultaneously monitoring all five search space sets exceeds its maximum processing capacity, the UE prioritizes monitoring the search space sets corresponding to DCIs that schedule multiple serving cells, such as Search space set 2, Search space set 3, Search space set 4, and Search space set 5; or it prioritizes monitoring Search space set 3, Search space set 4, and Search space set 5. Always monitoring Search space set 5 is necessary for downlink scheduling, so the UE needs to monitor at least one search space set related to downlink scheduling. If downlink scheduling also has multiple search space sets, and different search space sets can schedule different numbers of serving cells, the UE may also prioritize monitoring the search space sets corresponding to DCIs that schedule multiple serving cells.

[0090] The embodiment of the present invention also provides another scheduling method, referring to Figure 2 , the following is a detailed description through specific steps.

[0091] In an embodiment of the present invention, the scheduling method corresponding to the following steps S201 to S202 can be executed by a chip with data processing function in the access network device; or, it can also be executed by a chip module in the access network device, which chip module includes the above-mentioned chip with data processing function.

[0092] Step S201: Receive common channel state information.

[0093] In a specific implementation, after obtaining the channel state information corresponding to N serving cells, the UE can determine whether the channel state information of the N serving cells meets the convergence standard, that is, whether the channel state information of the N serving cells can be characterized by a common channel state information.

[0094] If the channel state information of N serving cells can be represented by one common channel state information, the common channel state information is reported. In this case, one common channel state information is used to represent the channel state information of N serving cells; N≥2.

[0095] In the embodiments of the present invention, the common channel state information may mean that each serving cell uses the channel state information to implement scheduling and subsequently carry out data transmission, and the corresponding transmission performance can meet preset requirements. The preset requirements can be requirements for normal communication functions, and the corresponding indicators such as transmission capacity loss and bit error rate are within a tolerable range.

[0096] In the embodiment of the present invention, the specific process of how the UE selects the common channel state information and the process of the UE reporting the common channel state information may correspond to the above steps S101 to S102, which will not be described in detail here.

[0097] Step S202: Generate and issue DCI.

[0098] In a specific implementation, after receiving the common channel state information, the access network device may generate corresponding DCI and send it to the UE.

[0099] In a specific implementation, if the access network device does not receive the common channel state information, the access network device may send DCI corresponding to each of the N serving cells.

[0100] In a specific implementation, if among N service cells, only the channel state information of M service cells meets the common channel state information reporting conditions, the access network device can generate DCI corresponding to scheduling M service cells, and NM DCIs for scheduling service cells that do not meet the common channel state information reporting conditions (if there is a scheduling requirement).

[0101] In a specific implementation, the access network device may generate a DCI of corresponding bit length according to the number of serving cells scheduled by the common channel state information. The bit length corresponding to the DCI may be positively correlated with the number of serving cells scheduled.

[0102] In a specific implementation, the access network device may determine the number X of serving cells scheduled by the DCI according to the amount of data to be transmitted, where X≤N.

[0103] In a specific implementation, the specific execution process of the above steps S201 to S202 can refer to the above embodiment, and the embodiment of the present invention will not be described in detail here.

[0104] Reference Figure 3, a scheduling device 30 in an embodiment of the present invention is provided, comprising: a reporting unit 301, a determining unit 302, wherein:

[0105] The reporting unit 301 is configured to report common channel state information, where the common channel state information is used to represent channel state information corresponding to N serving cells; N≥2;

[0106] The determining unit 302 is configured to determine a search space set that needs to be detected according to the number of serving cells that use the common channel state information.

[0107] In a specific implementation, the specific execution process of the above-mentioned reporting unit 301 and the determination unit 302 can correspond to the above-mentioned steps S101 to S102, and will not be repeated here.

[0108] In a specific implementation, the above-mentioned scheduling device 30 may correspond to a chip with a data processing function in a UE; or correspond to a chip module including a chip with a data processing function in a UE, or correspond to a UE.

[0109] Reference Figure 4 , a scheduling device 40 in an embodiment of the present invention is provided, comprising: a receiving unit 401 and a generating and issuing unit 402, wherein:

[0110] The receiving unit 401 receives common channel state information; the common channel state information is used to represent channel state information of N serving cells; N≥2;

[0111] The generating and issuing unit 402 is configured to generate and issue downlink control information.

[0112] In a specific implementation, the specific execution process of the receiving unit 401 and the generating and sending unit 402 may correspond to the above steps S201 to S202, which will not be described in detail here.

[0113] In a specific implementation, the above-mentioned scheduling device 40 may correspond to a chip with a data processing function in an access network device; or correspond to a chip module including a chip with a data processing function in an access network device, or correspond to an access network device.

[0114] An embodiment of the present invention also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the scheduling method provided in any of the above embodiments are executed.

[0115] An embodiment of the present invention also provides another scheduling device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor is running, it executes the steps of the scheduling method provided by the above steps S101 to S102; or, it executes the steps of the scheduling method provided by the above steps S201 to S202.

[0116] In specific implementations, the modules / units included in the various devices and products described in the above embodiments may be software modules / units or hardware modules / units, or may be partially software modules / units and partially hardware modules / units.

[0117] For example, for each device or product applied to or integrated into a chip, each module / unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated into a chip module, each module / unit contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The element can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0118] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, which may include: ROM, RAM, disk or CD, etc.

[0119] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A scheduling method, characterized in that: include: After obtaining channel state information corresponding to N serving cells, determining that the channel state information of the N serving cells is characterized by using common channel state information; when the N serving cells use the common channel state information to implement scheduling and then carry out data transmission, the transmission effect meets the preset requirements; Reporting the common channel state information, where the common channel state information is used to represent channel state information corresponding to N serving cells; N ≥ 2; the common channel state information includes at least one of the following: a channel quality indicator, a precoding matrix indicator, and a rank indicator; The search space set that needs to be detected is determined according to the number of serving cells that adopt the common channel state information.

2. The scheduling method according to claim 1, wherein: After determining the search space set that needs to be detected, it also includes: The order of the search space sets that need to be detected is adjusted according to the number of serving cells that adopt the common channel state information.

3. The scheduling method according to claim 2, wherein: The adjusting the order of the search space sets to be detected includes: If the total number of blind detections of downlink control information corresponding to different search space sets exceeds the maximum processing capacity, K search space sets in the different search space sets are detected in sequence according to the number of scheduled service cells from high to low; K<N.

4. The scheduling method according to claim 1, wherein: The maximum number of serving cells for downlink control information scheduling in the search space concentration that needs to be detected is equal to the number of serving cells that adopt the common channel state information.

5. The scheduling method according to claim 1, wherein: Before determining the search space set to be detected according to the number of serving cells using the common channel state information, the method further includes: Downlink control information on different search space sets is detected; the downlink control information on the different search space sets is used to schedule a corresponding number of serving cells, and the bit length corresponding to the downlink control information is positively correlated with the number of scheduled serving cells.

6. The scheduling method according to any one of claims 1 to 5, characterized in that: The determining, according to the number of serving cells using the common channel state information, a search space set to be detected includes: In time slot n+k, the search space set to be detected is determined according to the number of serving cells using the common channel state information; wherein time slot n is the time slot for reporting the common channel state information, and k is a fixed value.

7. The scheduling method according to claim 6, wherein: k is 2 or 3.

8. The scheduling method according to claim 1, wherein: Before reporting the common channel state information, configuration information of the search space set is received; the configuration information includes: the number of scheduled serving cells corresponding to different search space sets or the number of bits for transmitting downlink control information on the search space set.

9. A scheduling device, characterized in that: include: A reporting unit, configured to obtain channel state information corresponding to N serving cells and then determine that the channel state information of the N serving cells is characterized by a common channel state information; Reporting the common channel state information, where the common channel state information is used to represent channel state information corresponding to N serving cells; when the N serving cells use the common channel state information to implement scheduling and then carry out data transmission, the transmission effect meets preset requirements; N ≥ 2; the common channel state information includes at least one of the following: a channel quality indicator, a precoding matrix indicator, and a rank indicator; The determining unit is configured to determine a search space set that needs to be detected according to the number of serving cells that adopt the common channel state information.

10. A computer-readable storage medium, wherein the computer-readable storage medium is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored thereon, wherein: When the computer program is executed by a processor, the steps of the scheduling method according to any one of claims 1 to 8 are executed.

11. A scheduling device comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor runs the computer program, the processor performs the steps of the scheduling method according to any one of claims 1 to 8.

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