Methods, devices and terminals for monitoring PDCCH

Abstract

This application discloses a method, apparatus, and terminal for monitoring PDCCH, belonging to the field of wireless communication technology. The method for monitoring PDCCH in this application includes: the terminal determining a target monitoring resource for PDCCH monitoring based on first information on a first time unit; wherein the first information includes subband configuration information and / or guard band configuration information; and monitoring the PDCCH based on the target monitoring resource.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technology, specifically relating to a method, apparatus, and terminal for monitoring PDCCH. Background Technology

[0002] In wireless communication networks, especially for full-duplex or flexible-duplex communication networks, the uplink and downlink transmission directions may differ on different frequency domain resources at the same time. In this case, if the monitoring resource corresponding to the Physical downlink control channel (PDCCH) (or control resource set (CORESET)) overlaps with other resources besides the monitoring resource, effective monitoring of the PDCCH cannot be achieved. Summary of the Invention

[0003] This application provides a method, apparatus, and terminal for monitoring PDCCH, which can solve the problem of PDCCH being unable to be effectively monitored due to the overlap between the monitoring resource corresponding to PDCCH and other resources besides the monitoring resource.

[0004] In a first aspect, a method for monitoring PDCCH is provided, the method comprising: a terminal determining a target monitoring resource for PDCCH monitoring based on first information on a first time unit; wherein the first information includes subband configuration information and / or guard band configuration information; and monitoring the PDCCH based on the target monitoring resource.

[0005] Secondly, an apparatus for monitoring PDCCH is provided, the apparatus comprising: a determining module, configured to determine a target monitoring resource for PDCCH monitoring based on first information on a first time unit; wherein the first information includes subband configuration information and / or guard band configuration information; and a monitoring module, configured to monitor the PDCCH based on the target monitoring resource.

[0006] Thirdly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0007] Fourthly, a terminal is provided, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the first aspect.

[0008] Fifthly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0009] In a sixth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0010] In a seventh aspect, a computer program product is provided, the computer program product being stored in a non-volatile storage medium, the program product being executed by at least one processor to perform the steps of the method as described in the first aspect.

[0011] In this embodiment, the terminal determines the target monitoring resource for PDCCH monitoring based on the configuration information of the sub-band and / or the configuration information of the guard band on the first time unit. This enables the terminal to monitor the PDCCH based on the available target monitoring resource, avoiding the problem of ineffective PDCCH monitoring caused by the monitoring resource corresponding to the PDCCH overlapping with other resources, thus ensuring wireless communication performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a wireless communication system provided in an exemplary embodiment of this application.

[0013] Figure 2 This is a flowchart illustrating a method for monitoring the PDCCH provided in an exemplary embodiment of this application.

[0014] Figure 3a This is a flowchart illustrating a method for monitoring the PDCCH provided in another exemplary embodiment of this application.

[0015] Figure 3b This is a schematic diagram of a listening resource provided in an exemplary embodiment of this application.

[0016] Figure 4a This is a flowchart illustrating a method for monitoring the PDCCH provided in another exemplary embodiment of this application.

[0017] Figure 4b and Figure 4c These are schematic diagrams illustrating two different listening resources provided in the exemplary embodiments of this application.

[0018] Figure 5 This is a block diagram of an apparatus for monitoring the PDCCH provided in an exemplary embodiment of this application.

[0019] Figure 6This is a block diagram of the terminal provided in an exemplary embodiment of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th Generation (6G) communication systems.

[0023] Figure 1 This diagram illustrates a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0024] The technical solutions provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0025] like Figure 2 The diagram shown illustrates a flowchart of a method 200 for monitoring the PDCCH provided in an exemplary embodiment of this application. This method 200 can be executed by, but is not limited to, a terminal, specifically by hardware and / or software installed in the terminal. In this embodiment, the method 200 may include at least the following steps.

[0026] S210, the terminal determines the target listening resource for PDCCH listening based on the first information on the first time unit.

[0027] The first time unit is used for PDCCH monitoring, such as a symbol, slot, sub-slot, or sub-frame. In this embodiment, the first time unit can be configured through protocol agreement or higher-layer signaling, and is not limited here.

[0028] The first information includes subband configuration information and / or guardband configuration information. It is understood that in full-duplex or flexible-duplex networks, guardbands are introduced between uplink and downlink frequency domain resources to avoid interference between them. For example, for a guardband between paired spectrum segments, it is the guard interval between the uplink and downlink carriers. As another example, for unpaired spectrum segments, different subbands have different transmission directions within the same time unit, and guard intervals also need to be introduced within the subbands, i.e., guardbands are introduced between subbands within the carrier.

[0029] In this embodiment, to determine the target monitoring resource, the configuration information of the subband may include the subband's direction information and / or size information. For example, the subband's direction information may be uplink, downlink, or flexible; that is, the subband may be an uplink subband, a downlink subband, or a flexibly configured subband. In one implementation, the subband may include multiple consecutive resource blocks (RBs) or resource elements (REs), or it may be described by an RB set or an RE set.

[0030] The configuration information of the guard band may include the location and / or size information of the guard band. It is understood that the guard band represents frequency domain resources where the terminal does not transmit or receive signals, and this guard band can be described by the number of red-light districts (RBs) or red-light districts (REs), or by the location of red-light districts (RBs) or red-light districts (REs).

[0031] It should be noted that the direction or size information of the sub-bands may differ in different time units, and the size or position information of the guard bands may also differ. For example, in a certain time unit, a sub-band configuration consisting entirely of uplink sub-bands or entirely of downlink sub-bands may not require a guard band. Alternatively, in a certain time unit, a mixed configuration of uplink sub-bands, downlink sub-bands, and flexible sub-bands may exist, and one or more guard bands may need to be configured between the sub-bands.

[0032] In one implementation, the aforementioned subband direction information can be indicated by higher-layer signaling, a medium access control-control element (MAC-CE), downlink control information (DCI), etc.

[0033] Furthermore, the target listening resource determined by the terminal based on the first information may include resources corresponding to at least one of CORESET, Search Space (SS), and SS set.

[0034] It is understandable that the network side can configure multiple CORESETs for the terminal. Each CORESET can include consecutive symbol counts, frequency domain resources, precoding granularity, interleaving methods, demodulation reference signal (DMRS) mapping methods, etc. Each CORESET can also be configured with multiple SSs, and the terminal listens to the PDCCH in multiple SSs. The configuration of the SS can include the aggregation level, period, and offset value (used to determine the monitoring occasion) for PDCCH listening.

[0035] S220, based on the target listening resource, listen to the PDCCH.

[0036] The implementation process of the terminal listening to the PDCCH based on the target listening resources (such as CORESET, SS, SS set) is not restricted here.

[0037] In this embodiment, the terminal determines the target monitoring resource for PDCCH monitoring based on the configuration information of the sub-band and / or the configuration information of the guard band on the first time unit. This enables the terminal to monitor the PDCCH based on the available target monitoring resource, avoiding the problem of ineffective PDCCH monitoring caused by the monitoring resource corresponding to the PDCCH overlapping with other resources, thus ensuring wireless communication performance.

[0038] like Figure 3a The diagram shown illustrates a flowchart of a method 300 for monitoring the PDCCH according to an exemplary embodiment of this application. This method 300 can be executed by a terminal, but is not limited to that executed by a terminal itself; specifically, it can be executed by hardware and / or software installed in the terminal. In this embodiment, the method 300 may include at least the following steps.

[0039] S310, the terminal determines the target listening resource for PDCCH listening based on the first information on the first time unit.

[0040] The first information includes configuration information of the sub-band and / or configuration information of the protection band.

[0041] It is understood that, in addition to referring to the description of the aforementioned method embodiment 200, the implementation process of S310 may, in one possible implementation, satisfy the following (1) and / or (2).

[0042] (1) The target listening resource does not overlap with the first subband, which includes the uplink subband and / or a flexibly configurable subband. In other words, the frequency domain resources corresponding to the target listening resource (such as CORESET, SS set(s), SS) do not overlap with the uplink or flexibly configurable first subband.

[0043] For example, if the target listening resource is a CORESET, and a portion of the frequency domain resources of a CORESET overlaps with the uplink or flexible first subband, but the frequency domain resources of an SS#x in the SS set associated with that CORESET do not overlap with the uplink or flexible first subband, the terminal can listen to the PDCCH on that SS#x, where #x represents the index of the SS.

[0044] In one implementation, the network side can only configure CORESET on the downlink or on flexible subbands.

[0045] (2) The target monitoring resource does not overlap with the first guard band. In other words, the frequency domain resources corresponding to the target monitoring resource (such as CORESET, SS set(s), SS) do not overlap with the first guard band.

[0046] In this embodiment, the first sub-band and / or the first protection band mentioned in (1) and (2) above can be configured by the network side for the determination of target listening resources.

[0047] It should be noted that if the terminal determines to listen to the PDCCH in the first time unit according to the SS configuration, then the SS can be associated with the CORESET. That is, when the target listening parameters include the CORESET and the SS, the SS is associated with the CORESET.

[0048] S320, based on the target listening resource, listen to the PDCCH.

[0049] It is understood that, in addition to referring to the relevant description in method embodiment 200, as a possible implementation method, the implementation process of S320 may also include... Figure 3a The contents of S321 and S322 shown are as follows.

[0050] S321. When the target monitoring resource includes a CORESET, the terminal supports monitoring the PDCCH on N CORESETs, but when M CORESETs are included in the target monitoring resource, select N CORESETs from the M CORESETs, where N < M.

[0051] In this embodiment, the process by which the terminal selects N CORESETs from the M CORESETs may include at least one of the following (1)-(4).

[0052] (1) Based on the index value of each CORESET, select N CORESETs with the first index value from the M CORESETs.

[0053] Among them, the first index value may be N of the largest index values or N of the smallest index values among multiple index values, etc.

[0054] For example, assume N is 2, M is 4, and the M index values are a, b, c, d respectively, where a < b < c < d. Then, the N largest index values can be c and d. That is, the N CORESETs selected from the M CORESETs are the CORESETs with index values c and d respectively; correspondingly, the N smallest index values can be a and b. That is, the N CORESETs selected from the M CORESETs are the CORESETs with index values a and b respectively. [[ID=?]]

[0055] (2) Based on the number of resources included in each CORESET, select N CORESETs with the most resources from the M CORESETs, where the number of resources includes the number of RBs and / or the number of symbols.

[0056] Among them, assume M is 4, N is 2, and the number of resources in the 4 CORESETs are a, b, c, d respectively, where a < b < c < d. Then, the N CORESETs selected from the M CORESETs are the CORESETs including c resources and d resources respectively.

[0057] (3) Based on the index value of the SS associated with each CORESET, select N CORESETs associated with the SS with the second index value from the M CORESETs.

[0058] Among them, similar to the aforementioned first index value, the second index value may be N of the largest index values or N of the smallest index values among multiple index values. Correspondingly, the process of selecting N CORESETs according to the index value of the SS associated with the CORESET is similar to the selection process in (1) above and will not be elaborated here.

[0059] (4) Based on the search space type of each CORESET, select N CORESETs from the M CORESETs, wherein CORESETs configured with Common Search Space (CSS) are preferentially selected compared with CORESETs configured with UE-specific search space (USS).

[0060] For example, assuming M is 4, N is 3, and the 4 CORESETs include 2 CORESETs configured with CSS and 2 CORESETs configured with USS, then the 2 CORESETs configured with CSS are selected first, and then 1 CORESET is selected from the 2 CORESETs configured with USS. It can be understood that when the terminal selects 1 CORESET from the 2 CORESETs configured with USS, it can do so based on the index size of the CORESET, the index size of the SS associated with the CORESET, and the number of resources included in the CORESET; there are no restrictions here.

[0061] In this embodiment, if the terminal selects X CORESETs from M CORESETs based on the search space type of each CORESET, and M>X>N, it can further perform at least one of the following (4a)-(4c) to further select N CORESETs from X CORESETs.

[0062] (4a) Based on the index value of each of the CORESETs, select N CORESETs with a first index value from the X CORESETs.

[0063] (4b) Based on the number of resources included in each of the CORESETs, select the N CORESETs with the most resources from the X CORESETs.

[0064] (4c) Based on the index value of the SS associated with each of the CORESETs, select N CORESETs associated with the SS having the second index value from the X CORESETs.

[0065] It should be noted that the implementation process of (4a)-(4c) can be referred to the relevant descriptions in (1)-(3) above. To avoid repetition, it will not be repeated here.

[0066] Furthermore, if the number of CORESETs with CSS configuration is Y among the M CORESETs, and M>Y>N, the terminal can select N CORESETs from the Y CORESETs according to a predetermined priority order; wherein the predetermined priority order includes any one of the following (a)-(c).

[0067] (a) First CORESET > Second CORESET > Third CORESET > Fourth CORESET > Fifth CORESET.

[0068] (b) First CORESET > Third CORESET > Fourth CORESET > Second CORESET > Fifth CORESET.

[0069] (c) First CORESET > Third CORESET > Second CORESET > Fourth CORESET > Fifth CORESET.

[0070] In the aforementioned (a)-(c), the first CORESET is a CORESET associated with Type 0 CSS, the second CORESET is a CORESET associated with Type 1 CSS, the third CORESET is a CORESET associated with Type 0ACSS, the fourth CORESET is a CORESET associated with Type 2 CSS, and the fifth CORESET is a CORESET associated with Type 3 CSS.

[0071] It should be noted that the aforementioned predetermined priority order may vary depending on the CORESET, and this embodiment does not impose any restrictions on this.

[0072] S322, based on N of the aforementioned CORESETs, listen to the PDCCH.

[0073] Based on the description of the aforementioned method embodiment 300, for ease of understanding, the implementation process of method embodiment 300 will be further introduced below with examples. The details are as follows. It should be noted that... Figure 3b In the diagram, U represents upward movement and D represents downward movement.

[0074] Assuming the network side is configured with multiple CORESETs, such as CORESET#0-4, and each CORESET is configured with at least one SS, the terminal determines the target listening resource, such as the CORESET, based on the direction information of the subband in each time unit (i.e., the aforementioned first time unit), such as uplink or downlink.

[0075] Please refer to the following: Figure 3b , ( Figure 3bThe CORESET in the diagram is only for illustrating frequency domain resources. The specific monitoring occasion is determined based on the SS configuration. On the PDCCH monitoring occasion, the terminal needs to perform PDCCH monitoring on multiple CORESET / SS sets. Based on the direction information of the sub-band, the CORESET or SS set for PDCCH monitoring is determined.

[0076] Assume that searchspace configuration is included in CORESET#0-4, so that PDCCH monitoring is required on this monitoring occasion. Figure 3b In the case of PDCCH monitoring, if there is an uplink subband / guardband in the frequency domain resources (which can also be understood as bandwidth) corresponding to CORESET#0, the terminal will not perform PDCCH monitoring on CORESET#0. However, if the SS Set associated with CORESET#1 / 3 / 4 is also configured to perform PDCCH monitoring in the current time unit and is included in the downlink subband, the terminal will perform PDCCH monitoring on these CORESET#1 / 3 / 4.

[0077] In one implementation, if the terminal can only support PDCCH listening on N (e.g. 2) CORESETs, then the terminal can further select 2 CORESETs from the multiple CORESETs according to any one of (1)-(4) below to perform PDCCH listening.

[0078] (1) Select the two CORESETs with the smallest CORESET index to monitor, namely CORESET#1,3.

[0079] (2) Select the two CORESETs with the most resources (i.e. the largest bandwidth) to monitor, namely CORESET#1,4.

[0080] (3) Listen according to the type of SS. For example, listen on CORESET with CSS listener configured. For example, CORESET#3,4 has CSS PDCCH listener configured, while CORESET#1 only has USS listener. Then the terminal listens on PDCCH on CORESET#3,4.

[0081] Optionally, for multiple CSS, priority can also be determined according to the type of the CSS, such as Type0>...>Type3, as detailed in the relevant description in method embodiment 300.

[0082] (4) Listen to the CORESETs associated with the SS with the smallest index value. For example, if CORESET#1 is configured to listen to searchspace#1, CORESET#3 is configured to listen to searchspace#3, and CORESET#4 is configured to listen to searchspace#2, then the terminal will listen to PDCCH on CORESET#1 and 4.

[0083] It should be noted that the terminal determines the CORESET(s) / SS set(s) to monitor based on a time period, which may include one or more time units. Within this time period, the terminal only monitors the CORESET(s) / SS set(s) that are valid (available) in all monitoring occasions; or it can define a reference time within the time period, determine the CORESET(s) / SS set(s) to monitor based on the reference time, and monitor the same CORESET(s) / SS set(s) throughout the entire time period.

[0084] In this embodiment, when multiple CORESET configurations are configured on the network side, the terminal can further determine the available CORESET configuration from the multiple CORESET configurations and perform PDCCH monitoring, thereby further realizing effective monitoring of PDCCH.

[0085] like Figure 4a The diagram shown is a flowchart illustrating a method 400 for monitoring the PDCCH provided in an exemplary embodiment of this application. This method 400 can be executed by a terminal, but is not limited to that executed by a terminal itself; specifically, it can be executed by hardware and / or software installed in the terminal. In this embodiment, the method 400 may include at least the following steps.

[0086] S410, the terminal determines the target listening resource for PDCCH listening based on the first information on the first time unit.

[0087] The first information includes configuration information of the sub-band and / or configuration information of the protection band.

[0088] It is understood that the implementation process of S410 can refer to the relevant descriptions in the aforementioned method embodiments 200 or 300. To avoid repetition, it will not be repeated here.

[0089] S420, Based on the first information, determine the available resources on the target monitoring resource.

[0090] In one implementation, the terminal can determine the available resources in any of the following ways (1)-(2).

[0091] (1) For the target monitoring resource, there are no unavailable resources in a predetermined number of consecutive resource blocks starting from the resource block with index value a, where a satisfies mod(RB). idx b) = 0, RB idx 'b' represents the index value of the resource block, and 'b' represents the predetermined quantity. The predetermined quantity can be configured through protocol agreement or higher-level signaling, and is not limited here.

[0092] For example, if from RB idx If any one of the 6 RBs (such as RE or RB) starting from n is an unusable resource, then these 6 resource blocks are frequency domain resources in the target monitoring resources that cannot be used for PDCCH monitoring, that is, unusable resources. The n satisfies RB_idx mod(RB_idx,6)=0.

[0093] (2) There are no unavailable resources in the target monitoring resources.

[0094] For example, if any resource (such as RB or RE) in the target listening resource is unavailable, then the target listening resource is an unavailable resource.

[0095] In (1) and (2) above, when determining whether to listen to a target listening resource (such as CORESET, SS set), if any SS set / PDCCH candidate overlaps with an unavailable resource, then listening will not be performed on that CORESET / SS set.

[0096] In addition, as a possible implementation, besides the aforementioned (1) and (2), to determine whether a target listening resource (such as CORESET, SS set) is being listened to, if one of the SS set / PDCCH candidates is among the available resources, then the target listening resource is determined to be an available resource, and PDCCH listening is subsequently performed on that target listening resource.

[0097] S430, based on the available resources on the target listening resource, listen to the PDCCH.

[0098] It is understood that, in addition to referring to the relevant descriptions in the aforementioned method embodiments 200 or 300, the implementation process of S430 may include, as a possible implementation, the following: determining the PDCCH candidate resources in the target monitoring resource based on the set of available resources on the target monitoring resource; and monitoring the PDCCH based on the PDCCH candidate resources.

[0099] For example, the granularity for determining the availability of a target monitoring resource by subband might be 50 RBs, but for determining the availability of a PDCCH candidare, it's 6 RBs. It's possible that one RB is unavailable while the other five are available; from the PDCCH's perspective, all six RBs would be unavailable. However, if the availability of a target monitoring resource is described from the RB perspective, then because one RE within the RB might be unavailable, that RB would also be considered unavailable.

[0100] It should be noted that if there is no RE that is unavailable among the PDCCH candidate resources, the PDCCH will be monitored based on the PDCCH candidate resources; if there is an RE that is unavailable among the PDCCH candidate resources, the PDCCH candidate resources will not be monitored.

[0101] Furthermore, when the transmission direction of at least a portion of the target listening resources is downlink, the at least a portion of the listening resources includes at least one of the following (1)-(3).

[0102] (1) CORESET with index #0.

[0103] (2) CORESET for Beam Failure Recovery (BFR).

[0104] (3) A CORESET associated with a specified type of CSS, wherein the specified type of CSS includes at least one of Type-0CSS, Type-0ACSS, Type-1 CSS, and Type-2 CSS.

[0105] For the CORESET in (1)-(3) above, it can be understood that: if a CORESET with index #0, a CORESET for beam failure recovery, or a CORESET associated with a specified type of CSS is configured, then the listening resource corresponding to it is always downlink, and the terminal always listens to PDCCH.

[0106] Furthermore, based on the description of the aforementioned method embodiment 400, for ease of understanding, the implementation process of method embodiment 400 will be further introduced below with reference to examples, as follows.

[0107] The terminal determines the available resources in the CORESET based on the configuration information of the sub-band (such as direction information) and / or the configuration information of the protection band, which may include the following methods one and two.

[0108] Method 1: Refer to Figure 4bThe terminal determines the available RBs and REs based on the configuration information of the subband or guardband. If any RE in the PDCCH candidate is an unavailable resource, the terminal will not listen to that PDCCH candidate.

[0109] It is understandable that in Method 1, without changing the configuration of the CORESET and the resource mapping method of the terminal for PDCCH in the CORESET, the terminal will only listen on the PDCCH candidate when all REs of the PDCCH candidate are available.

[0110] Method 2: Refer to Figure 4c The terminal uses the configuration information of the root subband (such as direction information) and / or the configuration information of the guard band to determine the available RBs and REs. When determining the RB resources of the CORESET, the terminal excludes these unavailable RBs. For example, the terminal further excludes the following RBs as unavailable resources: if any RE within the 6 RBs starting from RB index = n is unavailable, then these 6 RBs are unavailable CORESET resources, where n satisfies mod(RB index = n). idx RB ,6)=0 idx .

[0111] After excluding these unavailable RB resources, the network side can map PDCCH candidates based on the available RB resources, and the terminal can also listen for PDCCH according to the PDCCH mapping method corresponding to the available resources.

[0112] Therefore, it can be understood that in this second method, only available RB resources are selected from the resource set of the network configuration CORESET for PDCCH candidate mapping, which changes the resource mapping method of PDCCH, thereby achieving effective PDCCH listening.

[0113] In this embodiment, the terminal performs PDCCH listening based on whether the RE in the PDCCH candidate is an available resource, and / or the terminal determines the PDCCH resource mapping method based on available resources and performs PDCCH listening accordingly. This avoids unnecessary PDCCH listening due to unavailable resources. Furthermore, the PDCCH listening mechanism provided in this embodiment allows for more flexible PDCCH transmission on the network side.

[0114] It should be noted that for the method 200-400 of monitoring PDCCH provided in the embodiments of the present application, the execution subject may be a device for monitoring PDCCH, or a control module in the device for monitoring PDCCH that executes the method of monitoring PDCCH. In the embodiments of the present application, the device for monitoring PDCCH is taken as an example to execute the method of monitoring PDCCH to illustrate the device for monitoring PDCCH provided in the embodiments of the present application.

[0115] As Figure 5 shown, it is a schematic block diagram of a device 500 for monitoring PDCCH provided in an exemplary embodiment of the present application. The device 500 includes: a determination module 510, configured to determine a target monitoring resource for PDCCH monitoring according to first information on a first time unit; wherein, the first information includes configuration information of a sub-band and / or configuration information of a guard band; a monitoring module 520, configured to monitor the PDCCH based on the target monitoring resource.

[0116] Optionally, the target monitoring resource includes at least one of the resources corresponding to CORESET, SS, and SS set.

[0117] Optionally, the configuration information of the sub-band includes direction information and / or size information of the sub-band; the configuration information of the guard band includes position information and / or size information of the guard band.

[0118] Optionally, the target monitoring resource satisfies at least one of the following: the target monitoring resource does not overlap with a first sub-band, and the first sub-band includes an uplink sub-band and / or a flexibly configured sub-band; the target monitoring resource does not overlap with a first guard band.

[0119] Optionally, the first sub-band and / or the first guard band are configured by the network side.

[0120] Optionally, when the target monitoring resource includes CORESET, the monitoring module is configured to select N CORESETs from the M CORESETs when the terminal supports monitoring the PDCCH on N CORESETs but the target monitoring resource includes M CORESETs, where N < M; and monitor the PDCCH based on the N CORESETs.

[0121] Optionally, the monitoring module 520 is used for at least one of the following: selecting N CORESETs with a first index value from the M CORESETs based on the index value of each CORESET; selecting N CORESETs with the most resources from the M CORESETs based on the number of resources included in each CORESET, wherein the number of resources includes the number of resource blocks (RBs) and / or the number of symbols; selecting N CORESETs associated with SSs having a second index value from the M CORESETs based on the index value of SSs associated with each CORESET; and selecting N CORESETs from the M CORESETs based on the search space type of each CORESET, wherein CORESETs configured with a common search space configuration are preferentially selected compared to CORESETs configured with a UE-specific search space configuration.

[0122] Optionally, the monitoring module 520 is configured to perform at least one of the following when, based on the search space type of each CORESET, the number of CORESETs selected from the M CORESETs is X, and M>X>N: selecting N CORESETs with a first index value from the X CORESETs based on the index value of each CORESET; selecting the N CORESETs with the most resources from the X CORESETs based on the number of resources included in each CORESET; and selecting N CORESETs associated with SSs having a second index value from the X CORESETs based on the index value of SSs associated with each CORESET.

[0123] Optionally, the listening module 520 is configured to select N CORESETs from the Y CORESETs in a predetermined priority order, provided that the number of CORESETs with a common search space configuration is Y, and M>Y>N among the M CORESETs; wherein the predetermined priority order includes any one of the following: first CORESET>second CORESET>third CORESET>fourth CORESET>fifth CORESET; first CORESET>third CORESET>fourth CORESET>second CORESET>fifth CORESET; first CORESET>third CORESET>second CORESET>fourth CORESET>fifth CORESET; and first CORESET>third CORESET>second CORESET>fourth CORESET>fifth CORESET; wherein the first CORESET is a CORESET associated with Type 0 CSS; the second CORESET is a CORESET associated with Type 1 CSS; the third CORESET is a CORESET associated with Type 0A CSS; the fourth CORESET is a CORESET associated with Type 2 CSS; and the fifth CORESET is a CORESET associated with Type 3 CSS.

[0124] Optionally, the processor 610 is further configured to determine the available resources on the target monitoring resource based on the first information; the monitoring module is configured to monitor the PDCCH based on the available resources on the target monitoring resource.

[0125] Optionally, the available resources are determined in any of the following ways: for the target monitoring resource, there are no unavailable resources in a predetermined number of consecutive resource blocks starting from the resource block with index value a, where a satisfies mod(RB). idx b) = 0, RB idx The index value of the resource block is represented by b, and the predetermined quantity is represented by b; there are no unavailable resources in the target monitoring resources.

[0126] Optionally, the monitoring module 520 is configured to determine the PDCCH candidate resources in the target monitoring resource based on the set of available resources on the target monitoring resource; and monitor the PDCCH based on the PDCCH candidate resources.

[0127] Optionally, the monitoring module 520 is configured to monitor the PDCCH based on the PDCCH candidate resources when there are no REs that are unavailable among the PDCCH candidate resources; and not monitor the PDCCH candidate resources when there are REs that are unavailable among the PDCCH candidate resources.

[0128] Optionally, when the transmission direction of the monitoring timing and / or frequency domain resources corresponding to at least a portion of the target monitoring resources is downlink, the at least a portion of the monitoring resources includes at least one of the following: a CORESET with index #0; a CORESET for beam failure recovery; and a CORESET associated with a specified type CSS, wherein the specified type CSS includes at least one of Type-0CSS, Type-0A CSS, Type-1 CSS, and Type-2 CSS.

[0129] Optionally, the direction information of the subband is indicated by higher-layer signaling, MAC-CE, and downlink control signaling.

[0130] The device 500 for monitoring the PDCCH in this embodiment can be a device, a device with an operating system, or an electronic device, or it can be a component, integrated circuit, or chip in a terminal. This device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This embodiment does not impose specific limitations.

[0131] The device 600 for monitoring PDCCH provided in this application embodiment can achieve... Figures 2-4a The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0132] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the methods described in the foregoing method embodiments 200-400. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 6 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0133] The terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

[0134] Those skilled in the art will understand that the terminal 600 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 610 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 6 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0135] It should be understood that, in this embodiment, the input unit 604 may include a graphics processing unit (GPU) 1041 and a microphone 6042. The GPU 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0136] In this embodiment, the radio frequency unit 601 receives downlink data from the network-side device and processes it for the processor 610; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0137] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include high-speed random access memory and non-volatile memory, wherein the 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), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0138] The processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, user interface, application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 610 either.

[0139] Among them, the processor 610 determines a target monitoring resource for PDCCH monitoring according to the first information on the first time unit; among them, the first information includes sub-band configuration information and / or guard band configuration information; based on the target monitoring resource, monitor the PDCCH.

[0140] Optionally, the target monitoring resource includes at least one of the resources corresponding to a CORESET, a search space SS, and a search space set SS set.

[0141] Optionally, the sub-band configuration information includes sub-band direction information and / or size information; the guard band configuration information includes guard band position information and / or size information.

[0142] Optionally, the target monitoring resource satisfies at least one of the following: the target monitoring resource does not overlap with a first sub-band, and the first sub-band includes an uplink sub-band and / or a flexibly configured sub-band; the target monitoring resource does not overlap with a first guard band.

[0143] Optionally, the first sub-band and / or the first guard band are configured by the network side.

[0144] Optionally, when the target monitoring resource includes a CORESET, the processor 610 is used to select N CORESETs from the M CORESETs when the terminal supports monitoring the PDCCH on N CORESETs but the target monitoring resource includes M CORESETs, where N < M; and based on the N CORESETs, monitor the PDCCH.

[0145] Optionally, the processor 610 is used for at least one of the following: selecting N CORESETs with a first index value from M CORESETs based on the index value of each CORESET; selecting N CORESETs with the most resources from M CORESETs based on the number of resources included in each CORESET, wherein the number of resources includes the number of resource blocks (RBs) and / or the number of symbols; selecting N CORESETs associated with SSs having a second index value from M CORESETs based on the index value of SSs associated with each CORESET; and selecting N CORESETs from M CORESETs based on the search space type of each CORESET, wherein CORESETs configured with a common search space configuration are preferentially selected relative to CORESETs configured with a UE-specific search space configuration.

[0146] Optionally, the processor 610 is configured to perform at least one of the following when, based on the search space type of each CORESET, the number of CORESETs selected from the M CORESETs is X, and M>X>N: selecting N CORESETs with a first index value from the X CORESETs based on the index value of each CORESET; selecting the N CORESETs with the most resources from the X CORESETs based on the number of resources included in each CORESET; and selecting N CORESETs associated with SSs having a second index value from the X CORESETs based on the index value of SSs associated with each CORESET.

[0147] Optionally, the processor 610 is configured to select N CORESETs from the Y CORESETs in a predetermined priority order, provided that the number of CORESETs with a common search space configuration is Y, and M>Y>N; wherein the predetermined priority order includes any one of the following: first CORESET>second CORESET>third CORESET>fourth CORESET>fifth CORESET; first CORESET>third CORESET>fourth CORESET>second CORESET>fifth CORESET; first CORESET>third CORESET>second CORESET>fourth CORESET>fifth CORESET; and first CORESET>third CORESET>second CORESET>fourth CORESET>fifth CORESET; wherein the first CORESET is a CORESET associated with Type 0 CSS; the second CORESET is a CORESET associated with Type 1 CSS; the third CORESET is a CORESET associated with Type 0A CSS; the fourth CORESET is a CORESET associated with Type 2 CSS; and the fifth CORESET is a CORESET associated with Type 3 CSS.

[0148] Optionally, the processor 610 is further configured to determine the available resources on the target listening resource based on the first information; and to listen to the PDCCH based on the available resources on the target listening resource.

[0149] Optionally, the available resources are determined in any of the following ways: for the target monitoring resource, there are no unavailable resources in a predetermined number of consecutive resource blocks starting from the resource block with index value a, where a satisfies mod(RB). idx b) = 0, RB idx The index value of the resource block is represented by b, and the predetermined quantity is represented by b; there are no unavailable resources in the target monitoring resources.

[0150] Optionally, the processor 610 is configured to determine the PDCCH candidate resources in the target monitoring resource based on the set of available resources on the target monitoring resource; and monitor the PDCCH based on the PDCCH candidate resources.

[0151] Optionally, the processor 610 is configured to listen to the PDCCH based on the PDCCH candidate resources when there are no REs that are unavailable among the PDCCH candidate resources; and not listen to the PDCCH candidate resources when there are REs that are unavailable among the PDCCH candidate resources.

[0152] Optionally, when the transmission direction of the monitoring timing and / or frequency domain resources corresponding to at least a portion of the target monitoring resources is downlink, the at least a portion of the monitoring resources includes at least one of the following: a CORESET with index #0; a CORESET for beam failure recovery; and a CORESET associated with a specified type CSS, wherein the specified type CSS includes at least one of Type-0CSS, Type-0A CSS, Type-1 CSS, and Type-2 CSS.

[0153] Optionally, the direction information of the subband is indicated by higher-layer signaling, MAC-CE, and downlink control signaling.

[0154] In this embodiment, the terminal determines the target monitoring resource for PDCCH monitoring based on the configuration information of the sub-band and / or the configuration information of the guard band on the first time unit. This enables the terminal to monitor the PDCCH based on the determined available target monitoring resource, avoiding the problem of PDCCH not being effectively monitored or transmitted due to the monitoring resource corresponding to the PDCCH overlapping with other resources besides the PDCCH, thus ensuring wireless communication performance.

[0155] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described method embodiment for monitoring PDCCH and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0156] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0157] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run network-side device programs or instructions to implement the various processes of the above-described method embodiment for monitoring PDCCH, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0158] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0159] This application also provides a computer program product, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the above-described method embodiment for monitoring PDCCH and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0160] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0161] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0162] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method of monitoring a PDCCH, the method comprising: The method comprises: A terminal determines a target monitoring resource for physical downlink control channel (PDCCH) monitoring according to first information on a first time unit in a full-duplex or flexible duplex wireless communication network; wherein the first information comprises configuration information of a sub-band and / or configuration information of a guard band; Monitoring the PDCCH based on the target monitoring resource; The target monitoring resource satisfies at least one of the following conditions: The target monitoring resource does not overlap with a first sub-band, the first sub-band comprises an uplink sub-band and / or a flexibly configured sub-band, and the first sub-band is configured for a full-duplex communication network; The target monitoring resource does not overlap with a first guard band, and the first guard band is used to avoid interference between uplink and downlink.

2. The method of claim 1, wherein, The target monitoring resource comprises resources corresponding to at least one of a control resource set (CORESET), a search space (SS), and an SS set.

3. The method of claim 1, wherein, The configuration information of the sub-band comprises direction information and / or size information of the sub-band; The configuration information of the guard band comprises position information and / or size information of the guard band.

4. The method of claim 1, wherein, The first sub-band and / or the first guard band are configured by a network side.

5. The method of claim 1, wherein, In the case where the target monitoring resource comprises a CORESET, the step of monitoring the PDCCH based on the target monitoring resource comprises: In the case where the terminal supports monitoring the PDCCH on N CORESETs but the target monitoring resource comprises M CORESETs, selecting N CORESETs from the M CORESETs, wherein N < M; Monitoring the PDCCH based on the N CORESETs.

6. The method of claim 5, wherein, The step of selecting N CORESETs from the M CORESETs comprises at least one of the following: Selecting N CORESETs with a first index value from the M CORESETs based on an index value of each CORESET; Selecting N CORESETs with the largest number of resources from the M CORESETs based on the number of resources included in each CORESET, wherein the number of resources comprises the number of resource blocks (RBs) and / or the number of symbols; Selecting N CORESETs associated with a SS with a second index value from the M CORESETs based on an index value of the SS associated with each CORESET; Selecting N CORESETs from the M CORESETs based on a search space type of each CORESET, wherein a CORESET with a common search space configuration is selected preferentially relative to a CORESET with a UE-specific search space configuration.

7. The method of claim 6, wherein, The step of selecting N CORESETs from the M CORESETs based on a search space type of each CORESET comprises: In the case where the number of CORESETs selected from the M CORESETs based on a search space type of each CORESET is X, and M > X > N, performing at least one of the following: selecting, from the X CORESETs, N CORESETs with first index values based on index values of each of the CORESETs; selecting, from the X CORESETs, N CORESETs with most resource numbers based on resource numbers included in each of the CORESETs; selecting, from the X CORESETs, N CORESETs associated with a SS with a second index value based on index values of the SS associated with each of the CORESETs.

8. The method of claim 6, wherein, The step of selecting, from the M CORESETs, N CORESETs based on search space types of each of the CORESETs, comprises: in a case that a number of CORESETs with configured common search space configurations is Y, and M>Y>N, among the M CORESETs, selecting N CORESETs from the Y CORESETs according to a predetermined priority order; wherein the predetermined priority order comprises any of the following: first CORESET>second CORESET>third CORESET>fourth CORESET> fifth CORESET; first CORESET>third CORESET>fourth CORESET>second CORESET> fifth CORESET; first CORESET>third CORESET>second CORESET>fourth CORESET> fifth CORESET; wherein the first CORESET is a CORESET associated with Type 0 CSS; the second CORESET is a CORESET associated with Type 1 CSS; the third CORESET is a CORESET associated with Type 0A CSS; the fourth CORESET is a CORESET associated with Type 2 CSS; the fifth CORESET is a CORESET associated with Type 3 CSS.

9. The method of claim 1, wherein, Before the step of monitoring the PDCCH based on the target monitoring resource, the method further comprises: determining available resources on the target monitoring resource according to the first information; The step of monitoring the PDCCH based on the target monitoring resource comprises: monitoring the PDCCH based on the available resources on the target monitoring resource.

10. The method of claim 9, wherein, The available resources are determined by any of the following: There is no unavailable resource in a continuous predetermined number of resource blocks with the resource block with the index value a as the starting point for the target monitoring resource, wherein a satisfies mod(RB idx , b) = 0, RB idx represents the index value of the resource block, and b represents the predetermined number. there is no unavailable resource in the target monitoring resource.

11. The method of claim 9, wherein, The step of monitoring the PDCCH based on the available resources on the target monitoring resource comprises: determining PDCCH candidate resources in the target monitoring resource according to the set of available resources on the target monitoring resource; monitoring the PDCCH based on the PDCCH candidate resources.

12. The method of claim 11, wherein, The step of monitoring the PDCCH based on the PDCCH candidate resources comprises: monitoring the PDCCH based on the PDCCH candidate resources in a case that there is no RE as unavailable resource in the PDCCH candidate resources; In a case that there is an RE as an unavailable resource in the PDCCH candidate resource, the PDCCH candidate resource is not listened to.

13. The method of any one of claims 1-12, wherein, In a case that a transmission direction of a listening occasion and / or a frequency domain resource corresponding to at least part of the listening resources in the target listening resources is downlink, the at least part of the listening resources comprise at least one of the following: a CORESET with an index of #0; a CORESET for beam failure recovery; a CORESET associated with a specified type of CSS, the specified type of CSS comprising at least one of Type-0 CSS, Type-0A CSS, Type-1 CSS, and Type-2 CSS.

14. The method of any one of claims 1-11, wherein, The direction information of the sub-band is indicated by high-layer signaling, MAC-CE, or downlink control signaling.

15. An apparatus for monitoring PDCCH, the apparatus comprising: The apparatus comprises: a determining module configured to determine, in a full-duplex or flexible-duplex wireless communication network, a target listening resource for physical downlink control channel (PDCCH) listening according to first information on a first time unit, wherein the first information comprises configuration information of a sub-band and / or configuration information of a guard band; a listening module configured to listen to the PDCCH based on the target listening resource. The target listening resource satisfies at least one of the following: The target listening resource does not overlap with a first sub-band, the first sub-band comprising an uplink sub-band and / or a flexibly configured sub-band, and the first sub-band being configured for a full-duplex communication network. The target listening resource does not overlap with a first guard band, and the first guard band being used to avoid interference between uplink and downlink.

16. The apparatus of claim 15, wherein, The target listening resource comprises resources corresponding to at least one of the following: a control resource set (CORESET), a search space (SS), and an SS set.

17. The apparatus of claim 15, wherein, The configuration information of the sub-band comprises direction information and / or size information of the sub-band. The configuration information of the guard band comprises position information and / or size information of the guard band.

18. The apparatus of claim 15, wherein, The first sub-band and / or the first guard band are configured by a network side.

19. The apparatus of claim 15, wherein, In a case that the target listening resource comprises a CORESET, the listening module is configured to, in a case that a terminal supports listening to the PDCCH on N CORESETs but the target listening resource comprises M CORESETs, select N CORESETs with a first index value from the M CORESETs based on an index value of each CORESET, and listen to the PDCCH based on the N CORESETs.

20. The apparatus of claim 19, wherein, The listening module is configured to at least one of the following: select N CORESETs with a first index value from the M CORESETs based on an index value of each CORESET; select N CORESETs with the largest number of resources from the M CORESETs based on a number of resources included in each CORESET, the number of resources comprising a number of resource blocks (RBs) and / or a number of symbols; selecting, from the M CORESETs, N CORESETs associated with SSs having a second index value based on an index value of the SS associated with each of the CORESETs; selecting, from the M CORESETs, N CORESETs based on a search space type of each of the CORESETs, wherein a CORESET configured with a common search space configuration is selected preferentially over a CORESET configured with a UE-specific search space configuration.

21. The apparatus of claim 20, wherein, In a case where a number of the CORESETs selected from the M CORESETs based on the search space type of each of the CORESETs is X, and M > X > N, the monitoring module is configured to perform at least one of the following: selecting, from the X CORESETs, N CORESETs having a first index value based on an index value of each of the CORESETs; selecting, from the X CORESETs, N CORESETs with a largest number of resources included in each of the CORESETs based on the number of resources included in each of the CORESETs; selecting, from the X CORESETs, N CORESETs associated with SSs having a second index value based on an index value of the SS associated with each of the CORESETs.

22. The apparatus of claim 20, wherein, In a case where a number of the CORESETs configured with the common search space configuration among the M CORESETs is Y, and M > Y > N, the monitoring module is configured to select, from the Y CORESETs, N CORESETs in a predetermined priority order; wherein the predetermined priority order comprises any one of the following: first CORESET > second CORESET > third CORESET > fourth CORESET > fifth CORESET; first CORESET > third CORESET > fourth CORESET > second CORESET > fifth CORESET; first CORESET > third CORESET > second CORESET > fourth CORESET > fifth CORESET; wherein the first CORESET is a CORESET associated with a Type 0 CSS; the second CORESET is a CORESET associated with a Type 1 CSS; the third CORESET is a CORESET associated with a Type 0A CSS; the fourth CORESET is a CORESET associated with a Type 2 CSS; the fifth CORESET is a CORESET associated with a Type 3 CSS.

23. The apparatus of claim 15, wherein, The determining module is further configured to determine available resources on the target monitoring resource according to the first information. The monitoring module is configured to monitor the PDCCH based on the available resources on the target monitoring resource.

24. The apparatus of claim 23, wherein, The available resources are determined in any one of the following ways: There is no unavailable resource in a continuous predetermined number of resource blocks with the resource block with the index value a as the starting point for the target monitoring resource, wherein a satisfies mod(RB idx , b) = 0, RB idx represents the index value of the resource block, and b represents the predetermined number. there is no unavailable resource in the target monitoring resource.

25. The apparatus of claim 23, wherein, The monitoring module is configured to determine a PDCCH candidate resource in the target monitoring resource according to a set of available resources on the target monitoring resource, and monitor the PDCCH based on the PDCCH candidate resource.

26. The apparatus of claim 25, wherein, The monitoring module is configured to monitor the PDCCH based on the PDCCH candidate resource in a case that there is no RE as unavailable resource in the PDCCH candidate resource. In a case that there is RE as unavailable resource in the PDCCH candidate resource, the PDCCH candidate resource is not monitored.

27. The apparatus of any of claims 15-26, wherein In a case that a transmission direction of a monitoring occasion and / or a frequency domain resource corresponding to at least part of the monitoring resources in the target monitoring resource is downlink, the at least part of the monitoring resources comprises at least one of the following: a CORESET with index #0; a CORESET for beam failure recovery; a CORESET associated with a specified type of CSS, the specified type of CSS comprising at least one of Type-0 CSS, Type-0A CSS, Type-1 CSS, Type-2 CSS.

28. The apparatus of any one of claims 15-25, wherein, The direction information of the sub-band is indicated by high layer signaling, MAC-CE, or downlink control signaling.

29. A terminal, characterized by A processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions being executed by the processor to implement the steps of the method of monitoring PDCCH according to any of claims 1 to 14.

30. A readable storage medium, characterized by, A readable storage medium storing a program or instructions, the program or instructions being executed by a processor to implement the steps of the method of monitoring PDCCH according to any of claims 1 to 14.

Images