Channel monitoring method, channel monitoring device, terminal, network equipment, and storage medium

Abstract

The present application provides a channel monitoring method, a channel monitoring apparatus, a terminal, a network device, and a storage medium. The method includes determining an index of a CCE occupied by a PDCCH candidate corresponding to a first DCI based on a first carrier indication value. The first DCI represents a DCI capable of simultaneously scheduling uplink channels and / or downlink channels of at least two cells. The first carrier indication value represents a carrier indication value configured by the network side for a combination of first cells. The combination of the first cells is a combination of cells scheduled by the first DCI.

Description

[Technical Field]

[0001] (Cross-reference to related applications) This application claims priority to the Chinese patent application filed with the China National Patent Office on August 4, 2022, with application number 202210933593.1, the entirety of which is incorporated into this application by reference.

[0002] This application relates to the wireless technology field, and more particularly to channel monitoring methods, channel monitoring devices, terminals, network equipment, and storage media. [Background technology]

[0003] To improve spectrum utilization, a mechanism has been introduced that schedules the uplink and / or downlink channels of multiple cells using a single Downlink Control Information (DCI) format. As a result, the method in related techniques that uses the Carrier Indicator Field (CIF) to determine the index of the Control Channel Element (CCE) occupied by candidate Physical Downlink Control Channels (PDCCH) is no longer applicable in cross-carrier scheduling scenarios. [Overview of the Initiative] [Means for solving the problem]

[0004] To solve related technical problems, embodiments of the present application provide a channel monitoring method, a channel monitoring device, a terminal, network equipment, and a storage medium.

[0005] The technical solution of the embodiment of the present application is realized as follows.

[0006] Embodiments of the present application provide a channel monitoring method applicable to a terminal, the method being: The process includes the step of determining the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, based on the first carrier indication value. The first DCI represents a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells, the first carrier instruction value represents a carrier instruction value configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI.

[0007] Embodiments of the present application further provide a channel monitoring method applicable to network equipment, the method being: The process includes a step of configuring at least one carrier instruction value, The at least one carrier indicator value is used to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, the first DCI representing a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells.

[0008] Embodiments of the present application further provide a channel monitoring device, the device being, The system comprises a first decision unit configured to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, based on a first carrier indication value, The first DCI represents a DCI capable of simultaneously scheduling the uplink and / or downlink channels of at least two cells, the first carrier indication represents a carrier indication configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI.

[0009] Embodiments of the present application further provide a channel monitoring device, the device being, A first component unit is configured to constitute at least one carrier indicator value, The at least one carrier indicator value is used to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, the first DCI representing a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells.

[0010] Embodiments of the present application further provide a terminal comprising a first processor and a first communication interface, The first processor is configured to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, based on the first carrier instruction value. The first DCI represents a DCI capable of simultaneously scheduling the uplink and / or downlink channels of at least two cells, the first carrier indication represents a carrier indication configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI.

[0011] Embodiments of the present invention further provide a network device comprising a second processor and a second communication interface, The second processor is configured to configure at least one carrier instruction value, The at least one carrier indicator value is used to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, the first DCI representing a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells.

[0012] Embodiments of the present invention further provide a terminal comprising a first processor and a first memory storing a computer program executable by the processor, The first processor is configured to execute any of the steps of the terminal-side method described above when executing the computer program.

[0013] Embodiments of the present invention further provide a network device comprising a second processor and a second memory storing a computer program executable by the processor. The second processor is configured to execute any of the steps of the network device-side method described above when executing the computer program.

[0014] Embodiments of the present invention further provide a storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the processor causes the processor to perform either the steps of the terminal-side or network device-side method described above.

[0015] According to the channel monitoring method, channel monitoring device, terminal, network device, and storage medium provided in the embodiments of the present application, the first DCI can schedule the uplink channels and / or downlink channels of at least two cells simultaneously. For the first DCI that schedules the combination of the first cells, the terminal determines the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI based on the carrier indication value configured for the combination of the first cells by the network side. In the above solution, the DCI can schedule the uplink channels and / or downlink channels of at least two cells simultaneously. For each combination of cells that the DCI can schedule, the terminal determines the index of the CCE occupied by the PDCCH candidate corresponding to the DCI based on the carrier indication value configured by the network side. In this way, in the cross-carrier scheduling scenario, the value of n_CI for calculating the index of the CCE is configured by the network side and is related to the combination of cells actually scheduled by the DCI. Since the value of n_CI no longer refers to the value of CIF, when a single DCI can schedule at least two cells simultaneously, the calculation of the index of the CCE is effectively realized, and the time-frequency resources occupied by the PDCCH candidate corresponding to the DCI are determined. The present invention provides, for example, the following items: (Item 1) A channel monitoring method applied to a terminal, The process includes the step of determining the control channel element (CCE) index occupied by the candidate physical downlink control channel (PDCCH) corresponding to the first downlink control information (DCI), based on the first carrier indication value. A channel monitoring method wherein the first DCI represents a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells, the first carrier indicator represents a carrier indicator configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI. (Item 2) Any combination of cells that the first DCI can schedule is composed of the first carrier indicator values. <00--0094> (Item 3) The aforementioned first carrier indicator value is determined from the first parameter set, The first parameter set includes at least two different carrier indicator values ​​configured by the network side, The channel monitoring method described in item 1. (Item 4) Each carrier instruction value in the first parameter set corresponds to a combination of cells that the first DCI can schedule, The channel monitoring method described in item 3. (Item 5) Each carrier instruction value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in a combination of cells composed of the same carrier instruction value is the same. The channel monitoring method described in item 3. (Item 6) The channel monitoring method described above is: The process further includes determining a combination of first cells from a combination of at least two cells composed of the first carrier indicator value, based on a carrier indicator field (CIF) or a first signaling. The aforementioned first signaling is used to direct the scheduled cell, The channel monitoring method described in item 5. (Item 7) A channel monitoring method applicable to network equipment, The process includes a step of configuring at least one carrier instruction value, A channel monitoring method wherein the at least one carrier indicator value is used to determine the control channel element (CCE) index occupied by a candidate physical downlink control channel (PDCCH) corresponding to a first downlink control information (DCI), and the first DCI represents a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells. (Item 8) The step of configuring the at least one carrier indicator value is: The first DCI includes the step of configuring a first carrier indicator value for any combination of cells that can be scheduled, The channel monitoring method described in item 7. (Item 9) The step of configuring the at least one carrier indicator value is: This includes the step of configuring the first parameter set, The first parameter set includes at least two different carrier indicator values, each carrier indicator value corresponding to at least one combination of cells on which the first DCI can be scheduled. The channel monitoring method described in item 7. (Item 10) Each carrier indication value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in a combination of cells corresponding to the same carrier indication value is the same. The channel monitoring method described in item 9. (Item 11) A channel monitoring device, The system includes a first decision unit configured to determine the control channel element (CCE) index occupied by a candidate physical downlink control channel (PDCCH) corresponding to a first downlink control information (DCI), based on a first carrier indication value. A channel monitoring device wherein the first DCI represents a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells, the first carrier indicator represents a carrier indicator configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI. (Item 12) A channel monitoring device, A first component unit is configured to constitute at least one carrier indicator value, A channel monitoring device wherein the at least one carrier indicator value is used to determine the control channel element (CCE) index occupied by a candidate physical downlink control channel (PDCCH) corresponding to a first downlink control information (DCI), and the first DCI represents a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells. (Item 13) It is a terminal, It comprises a first processor and a first communication interface, The first processor is configured to determine, based on a first carrier instruction value, the control channel element (CCE) index occupied by the candidate physical downlink control channel (PDCCH) corresponding to the first downlink control information (DCI), The first DCI represents a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells, the first carrier instruction value represents a carrier instruction value configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI, in a terminal. (Item 14) Network equipment, It comprises a second processor and a second communication interface, The second processor is configured to configure at least one carrier instruction value, The at least one carrier indicator value is used to determine the control channel element (CCE) index occupied by a candidate physical downlink control channel (PDCCH) corresponding to a first downlink control information (DCI), wherein the first DCI represents a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells, in a network device. (Item 15) It is a terminal, It comprises a first processor and a first memory in which a computer program executable by the processor is stored, The first processor is a terminal configured to perform the steps of the method described in any one of items 1 to 6 when executing the computer program. (Item 16) Network equipment, It comprises a second processor and a second memory in which a computer program executable by the processor is stored, The second processor is configured to perform the steps of the method described in any one of items 7 to 10 when executing the computer program, in a network device. (Item 17) A storage medium storing a computer program, wherein, when executed by a processor, the computer program performs the steps of any one of items 1 to 6, or the steps of any one of items 7 to 10. [Brief explanation of the drawing]

[0016] [Figure 1] This is a flowchart of the channel monitoring method according to the embodiment of the present invention.

[0017] [Figure 2] This is another flowchart of the channel monitoring method according to the embodiment of the present invention.

[0018] [Figure 3] This is a schematic diagram of a channel monitoring device according to an embodiment of the present invention.

[0019] [Figure 4] This is another schematic diagram of a channel monitoring device according to an embodiment of the present invention.

[0020] [Figure 5] This is a schematic diagram of the terminal according to an embodiment of the present invention.

[0021] [Figure 6] This is a schematic diagram of the network equipment according to an embodiment of the present invention. [Modes for carrying out the invention]

[0022] In the PDCCH blind detection process, the terminal first obtains the time-frequency domain information and aggregation level of the PDCCH by configuring the Control Resource Set (CORESET) and search space. Next, it needs to determine the index of the CCE occupied by the PDCCH candidate in the corresponding search space set. Then, it determines the location of the physical resource based on the mapping from the CCE index to the Resource Element Group (REG) bundle, and subsequently performs PDCCH blind detection.

[0023] For a set of search spaces s associated with CORESET p, the index of CCEs occupied by PDCCH candidates corresponding to aggregation level L is calculated using the following formula.

number

[0024] Here, n in the equation CI Regarding this, if cross-carrier scheduling is configured, the network configures the terminal's CIF via the upper-layer signaling CrossCarrierSchedulingConfig, and n CI This is the CIF value. This ensures that when scheduling PDCCH candidates for different carriers, the CCE is occupied as much as possible without overlap, and when cross-carrier scheduling is not configured, i.e., when corresponding to carrier self-scheduling and Common Search Space (CSS), n CI The value of is 0. Furthermore,

number

number

number

number

[0025] In related technologies, a single DCI format is used only to schedule a single cell, and the CIF is used to indicate the scheduled cell corresponding to the PDCCH candidate. Reallocation of the 4G spectrum increases the fragmented frequency band available for 5G. To improve spectrum utilization, the CIF field needs to be redesigned by introducing an uplink channel and / or downlink channel mechanism that schedules multiple cells using a single DCI format. In this way, the method of calculating the index of the CCE by referring to the CIF may no longer be applicable.

[0026] Based on this, in each embodiment of the present application, the first DCI can simultaneously schedule the uplink and / or downlink channels of at least two cells, and for the first DCI scheduling a first cell combination, the terminal determines the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI based on the carrier instruction value configured by the network side for the first cell combination. In the above solution, the DCI can simultaneously schedule the uplink and / or downlink channels of at least two cells, and the terminal determines the index of the CCE occupied by the PDCCH candidate corresponding to the DCI based on the carrier instruction value configured by the network side for each cell combination that the DCI can schedule. Thus, in a cross-carrier scheduling scene, n is used to calculate the index of the CCE. CI The value of n is a value related to the combination of cells configured by the network side and actually scheduled by DCI, CI Since the value no longer refers to the CIF value, if a single DCI can schedule at least two cells simultaneously, the calculation of the CCE index is effectively accomplished, and the time-frequency resources occupied by the PDCCH candidate corresponding to the DCI are determined.

[0027] The present application will be described in more detail below with reference to the drawings and embodiments.

[0028] An embodiment of the present invention provides a channel monitoring method applicable to a terminal, which, as shown in Figure 1, includes the following steps.

[0029] In step 101, the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI is determined based on the first carrier indication value.

[0030] Here, the first DCI represents a DCI capable of simultaneously scheduling the uplink and / or downlink channels of at least two cells, the first carrier instruction value represents a carrier instruction value configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI.

[0031] In a scenario where a single DCI simultaneously schedules the uplink and / or downlink channels of at least two cells, the first DCI can schedule one or more cells simultaneously, and the one or more cells that the first DCI schedules simultaneously are correspondingly referred to as a cell combination. For example, the first DCI can simultaneously schedule three cells, cell #1, cell #2, and cell #3, and the cell that the first DCI actually schedules each time may be one or more of the three cells. That is, there can be seven cell combinations that the first DCI can schedule: (cell #1), (cell #2), (cell #3), (cell #1, cell #2), (cell #1, cell #3), (cell #2, cell #3), and (cell #1, cell #2, cell #3). For each cell combination that the first DCI can schedule, the network side configures a corresponding carrier instruction value and transmits this carrier instruction value to the terminal via downlink signaling. For example, by carrying this carrier indication value in Radio Resource Control (RRC) signaling or the first DCI, this carrier indication value is transmitted to a terminal, and the terminal calculates the index of the CCE occupied by the corresponding PDCCH candidate based on the carrier indication value configured by the network side for the combination of cells actually scheduled by the first DCI.

[0032] Here, the carrier indicator value is n in the above formula. CIIt can be understood as such. Therefore, after the terminal determines the first carrier indication value corresponding to the combination of the first cells, it calculates the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI based on the above formula, that is, it can determine the position of the CCE occupied by the PDCCH candidate corresponding to the first DCI. In this way, in the cross-carrier scheduling scenario, the calculation of the CCE index can be effectively realized, whereby the time-frequency resources occupied by the PDCCH candidate corresponding to the DCI that schedules multiple cells simultaneously can be determined.

[0033] In actual applications, for the combination of cells schedulable by the first DCI, the configuration of the carrier indication value by the network side may include, but is not limited to, the following several solutions.

[0034] Regarding Solution 1 In one embodiment, any combination of cells schedulable by the first DCI is composed of the first carrier indication value.

[0035] In Solution 1, regardless of the combination of cells actually scheduled by the first DCI, the network side configures (sets) the same first carrier indication value so that the terminal calculates the index of the CCE for determining the position of the CCE occupied by the PDCCH candidate. That is, the carrier indication values configured corresponding to each combination of cells are all the same, and the value of the carrier indication value has nothing to do with the CIF or the information dynamically indicating the scheduled cells. For example, the network side may configure n CI =0, or the value of n CI is used as the cell index at the time of single-cell scheduling. CIThe value may be set to a different value. Here, the value of the carrier instruction value is fixed, that is, for different combinations of cells actually scheduled by the first DCI, the network side configures (sets) the same number of PDCCH candidates, and the time-frequency resources occupied by the PDCCH candidates that the terminal should monitor are the same, and in the above formula, for calculating the index of the CCE

number

[0036] In practical applications, since the first carrier indication is fixed, after a terminal accesses the base station, the base station may transmit the first carrier indication to the terminal via RRC signaling, or it may transmit the first carrier indication via Media Access Control-Control Element (MAC-CE) signaling or DCI signaling. Although the cells actually scheduled may have different combinations, Solution 1 calculates the CCE index based on the same carrier indication, so the number of PDCCH candidates is the same. In this way, determining the time-frequency resources occupied by the PDCCH candidates is simple in configuration, has low computational complexity, and is not affected by information that dynamically indicates the scheduled cells in the process of determining the time-frequency resources occupied by the PDCCH candidates. In particular, when a single DCI can schedule a large number of cells, using Solution 1 ensures that the computational complexity of the CCE index is not affected.

[0037] Furthermore, the network side can also configure different carrier indication values ​​for different cell combinations that are actually scheduled by the first DCI. In this case, the first carrier indication value is determined from the first parameter set, The first parameter set includes at least two different carrier indicator values ​​configured by the network side.

[0038] Regarding Solution 2 In one embodiment, each carrier instruction value in the first parameter set corresponds to a combination of cells that the first DCI can schedule.

[0039] In this embodiment, each PDCCH candidate corresponding to a schedulable cell combination occupies a non-overlapping CCE index, and multiple different carrier directives configured by the network side correspond one-to-one with each schedulable cell combination. The terminal needs to select the carrier directive corresponding to the cell combination actually scheduled from the multiple different carrier directives configured by the network side and calculate the CCE index. In Solution 2, if the schedulable cell combinations are different, the terminal needs to monitor different PDCCH candidates, and since the PDCCH candidates corresponding to different cell combinations occupy non-overlapping CCE indices, the number of PDCCH candidates corresponding to different cell combinations

number

[0040] In practical applications, the first carrier indication may be transmitted by the base station via MAC-CE signaling or DCI signaling.

[0041] Referring to the example above, if the schedulable cell combinations include (cell #1), (cell #2), (cell #3), (cell #1, cell #2), (cell #1, cell #3), (cell #2, cell #3), and (cell #1, cell #2, cell #3), then the first parameter set configured in response by the network side contains seven carrier instruction values ​​of different values, each corresponding to one of the seven cell combinations mentioned above. In the PDCCH blind detection process, the terminal first determines the carrier instruction values ​​from the first parameter set that correspond to the cell combinations that will actually be scheduled, and then calculates the index of the CCE based on the determined carrier instruction values, thereby determining the index of the CCE occupied by the PDCCH candidate.

[0042] Solution 2 is more suitable than Solution 1 when configuring different PDCCH candidates for different schedulable cell combinations, ensuring that when scheduling different cell combinations, the corresponding PDCCH candidates do not occupy overlapping CCEs as much as possible, thereby enabling flexible use of time-frequency resources. In contrast, Solution 1 is suitable when the number of PDCCH candidates and the budget for non-overlapping CCEs are limited, taking into account the terminal's monitoring capabilities. In particular, as the maximum number of cells that DCI can schedule increases, the number of schedulable cell combinations increases, and the PDCCH candidates corresponding to different cell combinations need to occupy more overlapping CCEs. Otherwise, the PDCCH blocking rate may increase, in which case it is more reasonable to adopt Solution 1.

[0043] Regarding Solution 3 In one embodiment, each carrier instruction value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in a combination of cells composed of the same carrier instruction value is the same.

[0044] In Solution 3, it can be understood that the multiple different carrier directives configured by the network are the same as the carrier directives configured for cell combinations containing the same number of cells; that is, the carrier directive corresponding to a cell combination that is actually scheduled is determined based on the number of cells in that cell combination, and the number of carrier directives in the first parameter set is the same as the maximum number of cells corresponding to the cell combination. In this way, the terminal can monitor the same or different PDCCH candidates for different schedulable cell combinations.

[0045] In practical applications, the first carrier indication may be transmitted by the base station via MAC-CE signaling or DCI signaling.

[0046] Furthermore, after determining the corresponding CCE index based on the number of cells in the cell combination, the cell combination to be actually scheduled may be further determined based on the relevant information. In one embodiment, the channel monitoring method is The further step includes determining the first cell combination from at least two cell combinations composed of the first carrier indicator values, based on CIF or first signaling.

[0047] Here, the first signaling is used to indicate the scheduled cell.

[0048] In actual applications, there may be multiple combinations of cells with the same corresponding carrier instruction value. If there are multiple combinations of cells corresponding to the determined carrier instruction value, the combination of cells that will actually be scheduled may be determined from these multiple cell combinations via CIF or scheduled cell instruction signaling.

[0049] Referring to the example above, if the schedulable cell combinations include (cell #1), (cell #2), (cell #3), (cell #1, cell #2), (cell #1, cell #3), (cell #2, cell #3), and (cell #1, cell #2, cell #3), then each of these cell combinations contains one, two, or three cells, and the network configures three carrier indicators corresponding to the number of cells in each cell combination. For example, a carrier indicator with a value of 0 corresponds to a cell combination with one cell, i.e., the three cell combinations (cell #1), (cell #2), and (cell #3); a carrier indicator with a value of 1 corresponds to a cell combination with two cells, i.e., the three cell combinations (cell #1, cell #2), (cell #1, cell #3), and (cell #2, cell #3); and a carrier indicator with a value of 2 corresponds to a cell combination with three cells, i.e., the cell combination (cell #1, cell #2, cell #3). In this way, the terminal can select several combinations of cells from the list of schedulable cell combinations based on the number of cells corresponding to the first carrier instruction value, and further determine which cells are actually scheduled based on 2-bit scheduled cell instruction signaling.

[0050] For illustrative purposes, the correspondence between carrier instruction values, scheduled cell instruction signaling, and the cells actually scheduled is shown in Table 1. [Table 1]

[0051] In Solution 3, the carrier instruction value is determined based on the actual number of cells to be scheduled, resulting in less further division of time-frequency resources. Compared to Solution 1, this allows for more flexible use of time-frequency resources and avoids the problem of limited PDCCH candidates and non-overlapping CCEs compared to Solution 2. Furthermore, the method of determining the cells to be actually scheduled by combining the carrier instruction value and scheduled cell instruction signaling effectively reduces the size of instruction field information and saves control overhead.

[0052] Furthermore, for solutions 2 and 3 described above, after the terminal accesses the base station, but before the base station transmits the first DCI to the terminal, the base station must transmit the mapping relationships between different carrier indication values ​​and different cell combinations to the terminal. Additionally, for solution 3, the base station must transmit one-to-one mapping relationships between different CIF values, different carrier indication values, and different cell combinations to the terminal. After receiving the first carrier indication value, the terminal can determine the cell combination actually scheduled by the first DCI based on the mapping relationships transmitted from the base station.

[0053] In response to this, an embodiment of the present invention further provides a channel monitoring method applicable to network equipment, such as a base station (gNB: the next generation node B), and as shown in Figure 2, the channel monitoring method includes the following steps.

[0054] In step 201, at least one carrier indicator value is configured.

[0055] Here, the at least one carrier indicator value is used to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, the first DCI representing a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells.

[0056] In one embodiment, the step of configuring the at least one carrier indicator value is: The first DCI includes the step of configuring a first carrier indicator value for any combination of cells that can be scheduled.

[0057] In one embodiment, the step of configuring the at least one carrier indicator value is: This includes the step of configuring the first parameter set, The first parameter set includes at least two different carrier indicator values, each corresponding to at least one combination of cells that the first DCI can schedule.

[0058] In one embodiment, each carrier indication value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in the cell combination corresponding to the same carrier indication value is the same.

[0059] For details regarding the channel monitoring method on the network device side, please refer to the example of the terminal-side channel monitoring method described above; therefore, a repetition of this explanation will not be provided here.

[0060] The above embodiment can effectively realize the calculation of CCE indices in cross-carrier scheduling scenarios, and can determine the time-frequency resources occupied by multiple PDCCH candidates for cells that DCI schedules simultaneously, without using new CIFs or new dynamic instruction information. Furthermore, the above embodiment provides three specific configuration methods, which can be combined with specific scenarios in actual applications. For example, if a single DCI can schedule a large number of cells, the configuration method of Solution 1 can be selected to avoid excessive computational complexity of CCE indices, and the configuration method of Solution 2 can be selected to minimize the occupation of overlapping CCEs, thereby achieving flexible use of time-frequency resources. Furthermore, the configuration method of Solution 3 can be selected to balance flexible use of time-frequency resources with reduced computational complexity. At the same time, the configuration method of Solution 3 can combine carrier instruction values ​​and scheduled cell instruction signaling to determine the cells that are actually scheduled, effectively reducing the size of instruction field information and saving control overhead.

[0061] In order to realize the terminal-side channel monitoring method according to the embodiment of the present invention, the embodiment of the present invention further provides a channel monitoring device located at the terminal, as shown in Figure 3, the device is The system includes a first decision unit 301 configured to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, based on a first carrier indication value. The first DCI represents a DCI capable of simultaneously scheduling the uplink and / or downlink channels of at least two cells, the first carrier indication represents a carrier indication configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI.

[0062] In one embodiment, any combination of cells that the first DCI can schedule is composed of the first carrier indicator value.

[0063] In one embodiment, the first carrier indicator value is determined from the first parameter set, The first parameter set includes at least two different carrier indicator values ​​configured by the network side.

[0064] In one embodiment, each carrier instruction value in the first parameter set corresponds to a combination of cells that the first DCI can schedule.

[0065] In one embodiment, each carrier instruction value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in a combination of cells composed of the same carrier instruction value is the same.

[0066] In one embodiment, the channel monitoring device is The unit further comprises a second determination unit configured to determine a combination of first cells from a combination of at least two cells composed of the first carrier indicator values, based on CIF or first signaling. The aforementioned first signaling is used to indicate the scheduled cell.

[0067] In actual applications, the first decision unit 301 and the second decision unit may be implemented by a processor within a channel monitoring device.

[0068] To realize the channel monitoring method on the network device side according to the embodiment of the present invention, the embodiment of the present invention further provides a channel monitoring device arranged in the network device, as shown in Figure 4, the device is A first component unit 401 is configured to constitute at least one carrier indicator value, The at least one carrier indicator value is used to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, the first DCI representing a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells.

[0069] In one embodiment, the first component unit 401 is The first DCI is configured to construct a first carrier indicator value for any combination of schedulable cells.

[0070] In one embodiment, the first component unit 401 is It is configured to make up the first parameter set, The first parameter set includes at least two different carrier indicator values, each corresponding to at least one combination of cells that the first DCI can schedule.

[0071] In one embodiment, each carrier indication value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in the cell combination corresponding to the same carrier indication value is the same.

[0072] In actual applications, the first component unit 401 can be implemented by a processor within a channel monitoring device.

[0073] In the above embodiment, when the channel monitoring device performs channel detection, only the division of each program module as described above was used as an example. However, in actual applications, the above processes may be assigned to different program modules as needed and completed; that is, the internal structure of the device can be divided into different program modules to complete all or part of the above processes. Furthermore, the channel monitoring device provided in the above embodiment belongs to the same concept as the embodiment of the channel monitoring method, and its specific implementation process can be found in the embodiment of the method, which will not be described again here.

[0074] Based on the hardware implementation of the above program module, in order to implement the terminal-side method according to the embodiment of the present invention, the embodiment of the present invention further provides a terminal, as shown in Figure 5, the terminal 500 comprises a first communication interface 501, a first processor 502, and a first memory 503. The first communication interface 501 can exchange information with other network nodes. The first processor 502 is connected to the first communication interface 501 to exchange information with other network nodes and executes a computer program using one or more of the methods provided by the terminal-side technical solutions described above. Meanwhile, the computer program is stored in the first memory 503.

[0075] Specifically, the first processor 502 is configured to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI based on the first carrier instruction value. The first DCI represents a DCI capable of simultaneously scheduling the uplink and / or downlink channels of at least two cells, the first carrier instruction value represents a carrier instruction value configured by the network side for the first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI.

[0076] In one embodiment, any combination of cells that the first DCI can schedule is composed of the first carrier indicator value.

[0077] In one embodiment, the first carrier indicator value is determined from the first parameter set, The first parameter set includes at least two different carrier indicator values ​​configured by the network side.

[0078] In one embodiment, each carrier instruction value in the first parameter set corresponds to a combination of cells that the first DCI can schedule.

[0079] In one embodiment, each carrier instruction value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in a combination of cells composed of the same carrier instruction value is the same.

[0080] In one embodiment, the first processor 502 further, The system is configured to determine the first cell combination from at least two cell combinations composed of the first carrier indicator values, based on CIF or first signaling. The aforementioned first signaling is used to indicate the scheduled cell.

[0081] The specific processing processes of the first processor 502 and the first communication interface 501 can be understood by referring to the method described above.

[0082] Of course, in actual applications, each component within terminal 500 is connected via bus system 504. Understandably, bus system 504 enables communication between these components. In addition to the data bus, bus system 504 includes a power bus, a control bus, and a status signal bus. However, for clarity, Figure 5 shows the various buses as part of bus system 504.

[0083] In the embodiments of the present invention, the first memory 503 is configured to store various types of data to support operations by the terminal 500. Examples of this data include any computer program used to operate on the terminal 500.

[0084] The methods disclosed in the embodiments of this application may be applied to or implemented by the first processor 502. The first processor 502 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by instructions in the form of hardware integrated logic circuits or software in the first processor 502. The first processor 502 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The first processor 502 can implement or execute each method, step, and logic block diagram disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor, or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application may be performed directly by a hardware decoding processor, or by a combination of hardware and software modules within the decoding processor. The software module may be placed on a storage medium, which is located in the first memory 503, and the first processor 502 reads the information stored in the first memory 503 and combines it with the hardware to complete the steps of the above method.

[0085] In exemplary embodiments, terminal 500 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontroller units (MCUs), microprocessors, or other electronic components to perform the above method.

[0086] Based on the hardware implementation of the above program module, in order to implement the network device method according to the embodiment of the present application, the embodiment of the present application further provides a network device, as shown in Figure 6, the network device 600 comprises a second communication interface 601, a second processor 602, and a second memory 603. The second communication interface 601 can exchange information with other network nodes. The second processor 602 is connected to the second communication interface 601 to exchange information with other network nodes and executes a computer program using one or more of the methods provided by the network device's technical solutions described above. Meanwhile, the computer program is stored in the second memory 603.

[0087] Specifically, the second processor 602 is It is configured to configure at least one carrier indicator value, The at least one carrier indicator value is used to determine the index of the CCE occupied by the PDCCH candidate corresponding to the first DCI, the first DCI representing a DCI capable of simultaneously scheduling uplink and / or downlink channels of at least two cells.

[0088] Here, in one embodiment, the second processor 602 is specifically, The first DCI is configured to construct a first carrier indicator value for any combination of schedulable cells.

[0089] In one embodiment, the second processor 602 specifically, It is configured to make up the first parameter set, The first parameter set includes at least two different carrier indicator values, each corresponding to at least one combination of cells that the first DCI can schedule.

[0090] In one embodiment, each carrier indication value in the first parameter set corresponds to a combination of at least two cells that the first DCI can schedule, and the number of cells in the cell combination corresponding to the same carrier indication value is the same.

[0091] The specific processing processes of the second processor 602 and the second communication interface 601 can be understood by referring to the method described above.

[0092] Of course, in actual applications, each component within the network device 600 is connected via the bus system 604. Understandably, the bus system 604 enables communication between these components. In addition to the data bus, the bus system 604 includes a power bus, a control bus, and a status signal bus. However, for clarity, Figure 6 shows the various buses as the bus system 604.

[0093] In the embodiments of the present invention, the second memory 603 is configured to store various types of data to support the operation of the network device 600. Examples of this data include any computer program used to operate on the network device 600.

[0094] The methods disclosed in the embodiments of this application may be applied to or implemented by the second processor 602. The second processor 602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by instructions in the form of hardware integrated logic circuits or software in the second processor 602. The second processor 602 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The second processor 602 can implement or execute each method, step and logic block diagram disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application may be performed directly by a hardware decoding processor or by a combination of hardware and software modules within the decoding processor. The software module may be located on a storage medium, and the storage medium is located on a second memory 603, and the second memory 603 reads the information stored in the second memory 603 and combines it with the hardware to complete the steps of the above method.

[0095] In exemplary embodiments, the network device 600 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components to perform the above method.

[0096] Understandably, the memories in the embodiments of this application (first memory 503, second memory 603) may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Here, non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM®), flash memory (Flash® Memory), magnetic memory, compact disk, or compact disc read-only memory (CD-ROM), and magnetic memory may be magnetic disk memory or magnetic tape memory. Volatile memory may be random access memory (RAM) used as an external cache.To the extent of illustrative but non-limiting examples, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synclink dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). The memories described in the embodiments of this application include, but are not limited to, these and any other suitable types of memory.

[0097] In exemplary embodiments, embodiments of the present application further provide a storage medium, i.e., a computer storage medium, specifically a computer-readable storage medium, which includes, for example, a first memory 503 for storing a computer program, the computer program being executed by a first processor 502 of a terminal 500 to complete the steps described in the terminal-side method above. Furthermore, for example, a second memory 603 for storing a computer program is included, the computer program being executed by a second processor 602 of a network device 600 to complete the steps described in the network device-side method above. The computer-readable storage medium may be memory such as FRAM®, ROM, PROM, EPROM, EEPROM, Flash® Memory, magnetic memory, optical disk, or CD-ROM.

[0098] It should be explained that terms such as "first," "second," etc., do not limit a specific order or sequence, but rather distinguish similar objects.

[0099] In this specification, the term "and / or" describes only the associated relationship and indicates that three relationships may exist. For example, A and / or B can represent three cases: A existing independently, A and B existing together, or B existing independently. Furthermore, in this specification, the term "at least one" indicates any combination of one or at least two of a plurality. For example, including at least one of A, B, and C indicates including any one or more elements selected from the set consisting of A, B, and C.

[0100] Furthermore, the technical solutions described in the embodiments of this application can be combined in any way without contradiction.

[0101] The above is merely a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. A channel monitoring method applied to a terminal, The channel monitoring method includes the step of determining the control channel element (CCE) index occupied by a candidate physical downlink control channel (PDCCH) corresponding to the first downlink control information (DCI) based on a first carrier indication value, The first DCI represents a DCI capable of simultaneously scheduling the uplink and / or downlink channels of at least two cells, the first carrier instruction value represents a carrier instruction value configured by the network side for a first cell combination, and the first cell combination is a combination of cells scheduled by the first DCI. The first carrier instruction value is determined by the terminal from the received first parameter set. The first parameter set includes at least two different carrier indicator values ​​configured by the network side, A channel monitoring method in which each carrier instruction value in the first parameter set corresponds to a combination of at least two different cells that the first DCI can schedule, and the number of cells in a combination of cells composed of the same carrier instruction value is the same.

2. The channel monitoring method according to claim 1, wherein any combination of cells that the first DCI can schedule is composed of the first carrier indicator value.

3. The channel monitoring method according to claim 1, wherein each carrier instruction value in the first parameter set corresponds to a combination of cells that the first DCI can schedule.

4. The channel monitoring method described above is: The process further includes determining a combination of first cells from at least two different combinations of cells composed of the first carrier indicator value, based on a carrier indicator field (CIF) or a first signaling. The channel monitoring method according to claim 1, wherein the first signaling is used to indicate a scheduled cell.

5. A channel monitoring method applicable to network equipment, The channel monitoring method includes the step of configuring at least two carrier indicator values, The at least two carrier indicator values ​​are used to determine the control channel element (CCE) index occupied by the candidate physical downlink control channel (PDCCH) corresponding to the first downlink control information (DCI), wherein the first DCI represents a DCI that can simultaneously schedule uplink and / or downlink channels of at least two cells. The step of configuring the at least two carrier indicator values ​​includes the step of configuring a first parameter set, A channel monitoring method wherein the first parameter set includes at least two different carrier indicator values, each carrier indicator value in the first parameter set corresponds to at least two different cell combinations that the first DCI can schedule, and the number of cells in cell combinations corresponding to the same carrier indicator value is the same.

6. The channel monitoring method according to claim 5, wherein the step of configuring the at least one carrier indicator value includes the step of configuring the first carrier indicator value for any combination of cells that the first DCI can schedule.

7. It is a terminal, The terminal comprises a first processor and a first memory in which a computer program executable by the first processor is stored. A terminal that performs the method according to any one of claims 1 to 4 by executing the computer program described above.

8. Network equipment, The network device comprises a second processor and a second memory in which a computer program executable by the second processor is stored. The second processor is a network device that performs the method according to claim 5 or claim 6 by executing the computer program.

9. A storage medium storing a computer program, wherein the computer program, when executed by a processor, performs the method according to any one of claims 1 to 4, or the method according to claim 5 or claim 6.

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