Method, device, terminal, base station and storage medium for channel detection

Abstract

The application discloses a channel detection method, device, terminal, base station and storage medium, wherein the method comprises: a terminal reports first information to a network side; the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of a CSS set detected within one time slot or one span are determined based on the first information; wherein the first information represents multicast and / or broadcast services that the terminal is receiving or interested in receiving or expecting to receive.

Description

Technical Field

[0001] This application relates to the field of wireless technology, and in particular to a method, apparatus, terminal, base station and storage medium for channel detection. Background Technology

[0002] New Radio (NR) evolution technology introduces multicast / broadcast technology and supports two delivery modes. Delivery mode 2 (DM2) can provide multicast and / or broadcast services with lower Quality of Service (QoS) requirements to terminals in idle, inactive, and connected Radio Resource Control (RRC) states. In practical applications, the base station transmits the configuration information for multicast and / or broadcast services under delivery mode 2 through logical channels such as the Broadcast Control Channel (BCCH) or Multicast Control Channel (MCCH).

[0003] Since multicast and / or broadcast services under distribution method 2 can only be scheduled through the Physical Downlink Control Channel (PDCCH) in the Common Search Space set (CSS set), based on the NR definition of terminal PDCCH detection behavior in related technologies, the number of PDCCH candidate sets and / or non-overlapping Control Channel Elements (CCEs) actually detected by the terminal within a time slot or a span may be less than the number of detections understood by the base station. In this case, the number of remaining detectable PDCCH candidate sets and / or non-overlapping Control Channel Elements perceived by the base station within a time slot or a span will be less than the actual number of remaining detectable PDCCHs. This reduces the base station's opportunities to schedule UE-specific Search Space sets (USS set) or unicast services, resulting in increased latency for unicast services. Summary of the Invention

[0004] To address the related technical issues, embodiments of this application provide a method, apparatus, terminal, base station, and storage medium for channel detection.

[0005] This application provides a channel detection method applied to a terminal, including:

[0006] Report the first information to the network side;

[0007] Based on the first information, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected within a time slot or a span; wherein...

[0008] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0009] In one embodiment, the first information includes at least one of the following:

[0010] An index identifying multicast and / or broadcast services;

[0011] Group-Radio Network Temporary Identity (G-RNTI);

[0012] Temporary Mobile Group Identity (TMGI).

[0013] Information related to the search space for scheduling multicast and / or broadcast services;

[0014] Priority information for multicast and / or broadcast services.

[0015] In one embodiment, before reporting the first information to the network side, the method further includes:

[0016] Receive configuration information for multicast and / or broadcast services sent by the network side.

[0017] In one embodiment, before reporting the first information to the network side, the method further includes:

[0018] The content of the first information is determined based on the configuration information of the multicast and / or broadcast services.

[0019] In one embodiment, the configuration information for the multicast and / or broadcast services includes at least one of the following:

[0020] Configuration information for multicast and / or broadcast services transmitted via BCCH;

[0021] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0022] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information; the predetermined order represents the degree of interest of the terminal in the multicast and / or broadcast services.

[0023] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the detected CSS set within a time slot or a span based on the first information includes:

[0024] Based on the first and second CSS sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where...

[0025] The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0026] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the detected CSS set within a time slot or a span based on the first information includes:

[0027] Based on the first and second PDCCH candidate sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where,

[0028] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0029] In one embodiment, the method further includes:

[0030] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0031] The second information includes at least one of the following:

[0032] Index of the CSS collection;

[0033] The number of PDCCH candidate sets in the CSS collection;

[0034] Aggregation level of the PDCCH candidate set in the CSS collection.

[0035] In one embodiment, the method further includes:

[0036] Based on the first information, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the USS set detected by the terminal within a time slot or a span.

[0037] In one embodiment, the method further includes:

[0038] Detect the scheduling PDCCH corresponding to the multicast and / or broadcast services represented in the first information.

[0039] This application also provides a channel detection method applied to a base station, the method comprising:

[0040] Receive the first information reported by the terminal;

[0041] Based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein...

[0042] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0043] In one embodiment, the first information includes at least one of the following:

[0044] An index identifying multicast and / or broadcast services;

[0045] G-RNTI;

[0046] TMGI;

[0047] Information related to the search space for scheduling multicast and / or broadcast services;

[0048] Priority information for multicast and / or broadcast services.

[0049] In one embodiment, before the first information reported by the receiving terminal, the method further includes:

[0050] Send configuration information for multicast and / or broadcast services to the terminal.

[0051] In one embodiment, sending configuration information for multicast and / or broadcast services to the terminal includes:

[0052] Configuration information for multicast and / or broadcast services transmitted via BCCH; and / or,

[0053] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0054] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information; the predetermined order represents the degree of interest of the terminal in the multicast and / or broadcast services.

[0055] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span based on the first information includes:

[0056] Based on the first CSS set and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein...

[0057] The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0058] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span based on the first information includes:

[0059] Based on the first PDCCH candidate set and the second PDCCH candidate set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span are determined; wherein...

[0060] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0061] In one embodiment, the method further includes:

[0062] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0063] The second information includes at least one of the following:

[0064] Index of the CSS collection;

[0065] The number of PDCCH candidate sets in the CSS collection;

[0066] Aggregation level of the PDCCH candidate set in the CSS collection.

[0067] This application also provides a channel detection device, including:

[0068] The first sending unit is used to report the first information to the network side;

[0069] The first determining unit is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected within a time slot or a span; wherein...

[0070] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0071] This application also provides a channel detection device, including:

[0072] The first receiving unit is used to receive the first information reported by the terminal.

[0073] The second determining unit is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected by the terminal within a time slot or a span; wherein...

[0074] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0075] This application also provides a terminal, including: a first processor and a first communication interface; wherein,

[0076] The first communication interface is used to report the first information to the network side:

[0077] The first processor is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected within a time slot or a span; wherein,

[0078] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0079] This application also provides a base station, including: a second processor and a second communication interface; wherein,

[0080] The second communication interface is used to receive the first information reported by the terminal;

[0081] The second processor is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected by the terminal within a time slot or a span; wherein,

[0082] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0083] This application also provides a terminal, including: a first processor and a first memory for storing a computer program capable of running on the processor.

[0084] Wherein, when the first processor is used to run the computer program, it executes the steps of any of the methods described above on the terminal side.

[0085] This application also provides a base station, characterized in that it includes: a second processor and a second memory for storing a computer program capable of running on the processor.

[0086] Wherein, when the second processor is used to run the computer program, it executes the steps of any of the methods described above for the base station side.

[0087] This application also provides a storage medium storing a computer program thereon, characterized in that the computer program, when executed by a processor, implements the steps of any of the methods described above.

[0088] The channel detection method, apparatus, terminal, base station, and storage medium provided in this application embodiment involve the terminal reporting first information to the network side. This first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services. The terminal and the base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span based on the first information. Thus, when determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span, the terminal and the base station only consider the multicast and / or broadcast services reported by the terminal in the first information. PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that are not reported will not be included in the number of PDCCH candidate sets and / or non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span. Based on this, the number of remaining detectable PDCCH candidate sets and / or the number of non-overlapping CCEs understood by the base station are consistent with the actual number of remaining detectable PDCCH candidate sets and the number of non-overlapping CCEs of the terminal. The base station can schedule the USS set more reasonably, which reduces the latency of unicast services to a certain extent and increases the scheduling opportunities of unicast services. Attached Figure Description

[0089] Figure 1 This is a schematic flowchart of a channel detection method according to an embodiment of this application;

[0090] Figure 2 This is a schematic flowchart of another channel detection method according to an embodiment of this application;

[0091] Figure 3 This is a schematic flowchart of a channel detection method according to an application embodiment of this application;

[0092] Figure 4 This is a schematic diagram of a channel detection method according to another application embodiment of this application;

[0093] Figure 5 This is a schematic flowchart of the channel detection method in the third application embodiment of this application;

[0094] Figure 6 This is a schematic diagram of a channel detection device according to an embodiment of this application;

[0095] Figure 7 This is a schematic diagram of another channel detection device structure according to an embodiment of this application;

[0096] Figure 8 This is a schematic diagram of the terminal structure according to an embodiment of this application;

[0097] Figure 9 This is a schematic diagram of the base station structure according to an embodiment of this application. Detailed Implementation

[0098] In NR, the search space set for PDCCH is divided into the CSS set and the USS set. To reduce the complexity of PDCCH detection by the terminal, NR introduces restrictions on the number of PDCCHs that the terminal can detect. These restrictions include the maximum number of PDCCH candidate sets that the terminal can detect in one slot of a downlink (DL) bandwidth (BWP) of a serving cell, the maximum number of non-overlapping CCEs that the terminal can detect in one slot of a DL BWP of a serving cell, the maximum number of PDCCH candidate sets that the terminal can detect in one span of a DL BWP of a serving cell, and the maximum number of non-overlapping CCEs that the terminal can detect in one span of a DL BWP of a serving cell. Because the number of PDCCH candidate sets or non-overlapping CCEs detected by the terminal in a time slot or span often exceeds the terminal's maximum detection capacity, NR further defines the terminal's PDCCH detection behavior: The terminal first detects the PDCCHs of all configured CSS sets within a time slot or span, and determines the number of PDCCH candidate sets and non-overlapping CCEs for the CSS sets detected within that time slot or span; then, the terminal continues to detect the PDCCHs of the USS set, and during the detection process, it follows the ascending order of the USS search space set index, targeting each search space set... The system determines the number of candidate PDCCHs to be detected and the number of non-overlapping CCEs in the search space set. If the sum of the number of candidate PDCCHs to be detected and the number of candidate PDCCHs already detected in the search space set does not exceed the maximum number of candidate PDCCHs that the terminal can detect in a time slot or a span, and the sum of the number of non-overlapping CCEs required to detect these candidate PDCCHs and the number of non-overlapping CCEs already detected does not exceed the maximum number of non-overlapping CCEs that the terminal can detect in a time slot or a span, then the terminal detects the search space set; otherwise, the terminal stops detecting PDCCHs in the USS set.

[0099] NR evolution technology introduces multicast / broadcast technology, supporting three RRC states: idle, inactive, and connected, and two delivery modes. Delivery mode 1 provides high Quality of Service (QoS) multicast and / or broadcast services to terminals in the connected RRC state. Delivery mode 2 supports all three RRC states (idle, inactive, and connected) and provides multicast and / or broadcast services with lower QoS requirements. Configuration information for multicast and / or broadcast services in delivery mode 2, such as TMGI, G-RNTI, PDCCH detection location configuration information, the number of PDCCH candidate sets, and the aggregation level of the PDCCH candidate sets, is transmitted through logical channels such as BCCH or MCCH. The two logical channels mentioned above are mapped through physical channels in the form of broadcast, such as (SIB, System Information Block). In this way, terminals in all three RRC states can receive the same configuration information. Furthermore, the search space set of PDCCH for scheduling multicast and / or broadcast services is CSS, thereby ensuring that all terminals can detect the same PDCCH.

[0100] Although the configuration information for multicast and / or broadcast services under distribution method 2 is carried through a broadcast-style physical channel, whether the terminal receives multicast and / or broadcast services, or which multicast and / or broadcast services it receives, depends on the terminal. Since multicast and / or broadcast services in distribution method 2 can only be scheduled via the PDCCH of the CSS, based on the definition of terminal PDCCH detection behavior in NR, if the base station believes that the terminal needs to receive all configured multicast and / or broadcast services, then the base station will determine the number of PDCCH candidate sets and the number of non-overlapping CCEs for the CSS sets detected by the terminal within a time slot or span, based on all configured CSS sets within a time slot or span. However, in reality, the terminal does not receive all of these multicast and / or broadcast services. This results in the terminal actually detecting fewer PDCCH candidate sets and non-overlapping CCEs in a time slot or span than the base station understands that the terminal needs to detect. This further leads the base station to believe that the terminal has fewer remaining detectable PDCCH candidate sets and non-overlapping CCEs in a time slot or span than the actual number of remaining detectable PDCCH candidate sets and non-overlapping CCEs. As a result, the base station has fewer opportunities to schedule terminal USS or unicast services, and the latency of unicast services increases.

[0101] Based on this, in this embodiment of the application, the terminal reports first information to the network side. This first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services. The terminal and the base station respectively determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span based on the first information. In this way, when the terminal and the base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span, they only consider the multicast and / or broadcast services reported by the terminal in the first information. PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that are not reported will not be included in the number of PDCCH candidate sets and / or non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span. Based on this, the number of remaining detectable PDCCH candidate sets and the number of non-overlapping CCEs understood by the base station are consistent with the actual number of remaining detectable PDCCH candidate sets and the number of non-overlapping CCEs of the terminal. The base station can schedule the USS set more reasonably, which reduces the latency of unicast services to a certain extent and increases the scheduling opportunities of unicast services.

[0102] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0103] This application provides a channel detection method, applied to a terminal, such as... Figure 1 As shown, the method includes:

[0104] Step 101: Report the first information to the network side.

[0105] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0106] In one embodiment, the first information includes at least one of the following:

[0107] An index identifying multicast and / or broadcast services;

[0108] G-RNTI;

[0109] TMGI;

[0110] Information related to the search space for scheduling multicast and / or broadcast services;

[0111] Priority information for multicast and / or broadcast services.

[0112] In other words, the terminal can use one or more of the above information contents in the first information to characterize the multicast and / or broadcast services that the terminal is receiving, is interested in receiving, or expects to receive, as well as their priority order.

[0113] In practical applications, the terminal determines the content of the first information based on the configuration information of multicast and / or broadcast services sent by the network side. Based on this, in one embodiment,

[0114] Before reporting the first information to the network side, the method further includes:

[0115] Receive configuration information for multicast and / or broadcast services sent by the network side.

[0116] In one embodiment, the configuration information for the multicast and / or broadcast services includes at least one of the following:

[0117] Configuration information for multicast and / or broadcast services transmitted via BCCH;

[0118] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0119] In one embodiment, before reporting the first information to the network side, the method further includes:

[0120] The content of the first information is determined based on the configuration information of the multicast and / or broadcast services.

[0121] In practical applications, the network side sends multicast / broadcast service configuration information to the terminal via BCCH or MCCH. Based on the configuration information sent by the network side, the terminal determines the multicast and / or broadcast services it is currently receiving, is interested in receiving, or expects to receive. Based on the configuration information corresponding to the determined multicast and / or broadcast services, the terminal determines the content of the first information, including at least one of the following: the index of the multicast and / or broadcast services it is currently receiving, is interested in receiving, or expects to receive; G-RNTI; TMGI; priority information; and information related to the search space for scheduling multicast and / or broadcast services. Thus, based on the received first information, the network side can determine the multicast and / or broadcast services the terminal is currently receiving, is interested in receiving, or expects to receive.

[0122] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information.

[0123] The set order represents the degree of interest of the terminal in multicast and / or broadcast services.

[0124] Here, the multicast and / or broadcast services represented in the first information are arranged in the first information according to the terminal's degree of interest in these multicast and / or broadcast services. In this way, when the terminal and the base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span based on the first information, it can be guaranteed that the PDCCH candidate sets occupied by the multicast and / or broadcast services that the terminal is interested in and the required non-overlapping CCEs can be preferentially included in the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span.

[0125] Step 102: Based on the first information, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected in a time slot or a span.

[0126] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the detected CSS set within a time slot or a span based on the first information includes:

[0127] Based on the first CSS set and the second CSS set, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected within a time slot or a span.

[0128] Wherein, the first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0129] In practical applications, among all configured CSS sets for scheduling multicast and / or broadcast services, a portion of the CSS sets are used to schedule multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive. For ease of description, this portion of the CSS sets is referred to as the first CSS set. The CSS sets for scheduling multicast and / or broadcast services that, apart from the first CSS set, do not schedule multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive; this portion of the CSS sets is referred to as the third CSS set. Furthermore, the CSS set used for scheduling system messages, random access responses, paging messages, and group control information is referred to as the second CSS set. The second CSS set is the CSS set containing the PDCCH that is not used for scheduling multicast and / or broadcast services. Here, the terminal determines the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span based on the first CSS set and the second CSS set. The terminal does not determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span based on the PDCCH candidate sets of the third CSS set.

[0130] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the detected CSS set within a time slot or a span based on the first information includes:

[0131] Based on the first and second PDCCH candidate sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where,

[0132] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0133] In practical applications, among all configured CSS sets for scheduling multicast and / or broadcast services, a portion of the PDCCH candidate sets in some CSS sets are used to schedule multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive. For ease of description, this portion of the PDCCH candidate sets is referred to as the first PDCCH candidate set. In the CSS sets for scheduling multicast and / or broadcast services, other PDCCH candidate sets besides the first PDCCH candidate set schedule multicast and / or broadcast services that the terminal is not currently receiving, is interested in receiving, or expects to receive. This portion of the PDCCH candidate sets is referred to as the third PDCCH candidate set. Furthermore, the PDCCH candidate sets used for scheduling system messages, random access responses, paging messages, and group control information are referred to as the second PDCCH candidate set. The second PDCCH candidate set represents the PDCCH candidate sets not used for scheduling multicast and / or broadcast services. The terminal determines the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span based on the first PDCCH candidate set and the second PDCCH candidate set. The terminal does not determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span based on the third PDCCH candidate set.

[0134] In one embodiment, the method further includes:

[0135] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0136] The second information includes at least one of the following:

[0137] Index of the CSS collection;

[0138] The number of PDCCH candidate sets in the CSS collection;

[0139] Aggregation level of the PDCCH candidate set in the CSS collection.

[0140] In practical applications, the terminal determines the first PDCCH candidate set based on second information associated with the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive. Here, the second information includes at least one of the following: the index of the CSS set of the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive; the number of PDCCH candidate sets of the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive; and the aggregation level of the PDCCH candidate sets of the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive.

[0141] In one embodiment, the method further includes:

[0142] Based on the first information, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the USS set detected by the terminal within a time slot or a span.

[0143] Here, after determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected by the terminal within a time slot or a span, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the USS set detected by the terminal within a time slot or a span can be determined based on the first information. Specifically, the terminal determines the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the USS set detected by the terminal within a time slot or a span based on the PDCCH candidate sets occupied by multicast and / or broadcast services excluded from the multicast and / or broadcast services represented by the first information. That is, in addition to the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive, and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs occupied by other multicast and / or broadcast services can be used to schedule unicast services in the USS set, avoiding the waste of PDCCH detection capabilities.

[0144] In one embodiment, the method further includes:

[0145] Detect the scheduling PDCCH corresponding to the multicast and / or broadcast services represented in the first information.

[0146] Here, the terminal only detects the scheduling PDCCH corresponding to the multicast and / or broadcast services represented in the first information, and does not detect the scheduling PDCCH corresponding to multicast and / or broadcast services not represented in the first information. In this way, the number of PDCCH candidate sets occupied by multicast and / or broadcast services not represented in the first information and / or the number of non-overlapping CCEs can be used to schedule unicast services in the USS set, avoiding the waste of PDCCH detection capability.

[0147] Accordingly, embodiments of this application also provide a channel detection method, applied to a base station, such as... Figure 2 As shown, the method includes:

[0148] Step 201: Receive the first information reported by the terminal.

[0149] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0150] In one embodiment, the first information includes at least one of the following:

[0151] An index identifying multicast and / or broadcast services;

[0152] G-RNTI;

[0153] TMGI;

[0154] Information related to the search space for scheduling multicast and / or broadcast services;

[0155] Priority information for multicast and / or broadcast services.

[0156] In practical applications, the terminal determines the content of the first information based on the configuration information of multicast and / or broadcast services sent by the base station. Therefore, in one embodiment, before the first information reported by the receiving terminal, the method further includes:

[0157] Send configuration information for multicast and / or broadcast services to the terminal.

[0158] In one embodiment, sending configuration information for multicast and / or broadcast services to the terminal includes:

[0159] Configuration information for multicast and / or broadcast services transmitted via BCCH; and / or,

[0160] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0161] In practical applications, the network side sends multicast / broadcast service configuration information to the terminal via BCCH or MCCH. Based on the configuration information sent by the network side, the terminal determines the multicast and / or broadcast services it is currently receiving, is interested in receiving, or expects to receive. Based on the configuration information corresponding to the determined multicast and / or broadcast services, the terminal determines the content of the first information, including at least one of the following: the index of the multicast and / or broadcast services it is currently receiving, is interested in receiving, or expects to receive; G-RNTI; TMGI; priority information; and information related to the search space for scheduling multicast and / or broadcast services. Thus, based on the received first information, the network side can determine the multicast and / or broadcast services the terminal is currently receiving, is interested in receiving, or expects to receive.

[0162] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information; the predetermined order represents the degree of interest of the terminal in the multicast and / or broadcast services.

[0163] Here, the multicast and / or broadcast services represented in the first information are arranged in the first information according to the degree of interest of the terminal in these multicast and / or broadcast services. In this way, when the terminal and the base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span based on the first information, it can be guaranteed that the PDCCH candidate sets occupied by the multicast and / or broadcast services that the terminal is interested in can be preferentially included in the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span.

[0164] Step 202: Based on the first information, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span.

[0165] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span based on the first information includes:

[0166] Based on the first CSS set and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein...

[0167] The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0168] Wherein, the first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0169] In practical applications, among all configured CSS sets for scheduling multicast and / or broadcast services, a portion of the CSS sets are used to schedule multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive. For ease of description, this portion of the CSS sets is referred to as the first CSS set. The CSS sets for scheduling multicast and / or broadcast services that, apart from the first CSS set, do not schedule multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive; this portion of the CSS sets is referred to as the third CSS set. Furthermore, the CSS set used for scheduling system messages, random access responses, paging messages, and group control information is referred to as the second CSS set. The second CSS set is the CSS set containing the PDCCH that is not used for scheduling multicast and / or broadcast services. Here, the base station determines the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span based on the first CSS set and the second CSS set. The base station does not determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span based on the PDCCH candidate sets of the third CSS set.

[0170] In one embodiment, determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the detected CSS set within a time slot or a span based on the first information includes:

[0171] Based on the first and second PDCCH candidate sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where,

[0172] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0173] In practical applications, among all configured CSS sets for scheduling multicast and / or broadcast services, a portion of the PDCCH candidate sets in some CSS sets are used to schedule multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive. For ease of description, this portion of the PDCCH candidate sets is referred to as the first PDCCH candidate set. In the CSS sets for scheduling multicast and / or broadcast services, other PDCCH candidate sets besides the first PDCCH candidate set schedule multicast and / or broadcast services that the terminal is not currently receiving, is interested in receiving, or expects to receive. This portion of the PDCCH candidate sets is referred to as the third PDCCH candidate set. Furthermore, the PDCCH candidate sets used for scheduling system messages, random access responses, paging messages, and group control information are referred to as the second PDCCH candidate set. The second PDCCH candidate set represents the PDCCH candidate sets not used for scheduling multicast and / or broadcast services. The terminal determines the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span based on the first PDCCH candidate set and the second PDCCH candidate set. The terminal does not determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span based on the third PDCCH candidate set.

[0174] In one embodiment, the method further includes:

[0175] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0176] The second information includes at least one of the following:

[0177] Index of the CSS collection;

[0178] The number of PDCCH candidate sets in the CSS collection;

[0179] Aggregation level of the PDCCH candidate set in the CSS collection.

[0180] In practical applications, the base station determines the first PDCCH candidate set based on second information associated with the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive. Here, the second information includes at least one of the following: the index of the CSS set of the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive; the number of PDCCH candidate sets of the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive; and the aggregation level of the PDCCH candidate sets of the multicast and / or broadcast services that the terminal is currently receiving, is interested in receiving, or expects to receive.

[0181] In this way, the number of PDCCH candidate sets and / or non-overlapping CCEs occupied by other multicast and / or broadcast services, besides those that the terminal is currently receiving, is interested in receiving, or expects to receive, can be used to schedule unicast services in the USS set, thus avoiding the waste of PDCCH detection capabilities.

[0182] In the above scheme, the terminal reports first information to the network side. This first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services. The terminal and the base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span based on the first information. In this way, when determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span, the terminal and the base station only consider the multicast and / or broadcast services reported by the terminal in the first information. PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that are not reported will not be included in the number of PDCCH candidate sets and / or non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span. Based on this, the number of remaining detectable PDCCH candidate sets and / or the number of non-overlapping CCEs understood by the base station are consistent with the number of remaining detectable PDCCH candidate sets and the number of non-overlapping CCEs. The base station can schedule the USS set more reasonably, which reduces the latency of unicast services to a certain extent and increases the scheduling opportunities of unicast services.

[0183] The present application will be further described in detail below with reference to application examples.

[0184] Combination Figure 3 The channel detection method in this application embodiment includes the following steps:

[0185] Step 1: The network side configures two CSSs for scheduling multicast / broadcast services via BCCH and / or MCCH.

[0186] Among them, CSS 1 is used to schedule multicast and / or broadcast service 1, the TMGI corresponding to multicast and / or broadcast service 1 is TMGI 1, and the corresponding G-RNTI is G-RNTI 1; CSS 2 is used to schedule multicast and / or broadcast service 2, the TMGI corresponding to multicast and / or broadcast service 2 is TMGI 2, and the corresponding G-RNTI is G-RNTI 2.

[0187] Step 2: Based on the configuration information transmitted by the network side through BCCH and / or MCCH, the terminal reports the first information to the network side, and uses the first information to indicate to the network side that the multicast and / or broadcast service that the terminal is receiving, is interested in receiving, or expects to receive is multicast and / or broadcast service 2.

[0188] The first information to be reported can be TMGI 2, G-RNTI 2, or CSS 2.

[0189] Step 3: Based on CSS 2 and other CSS, the terminal and base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span.

[0190] Among them, the CSS in other CSS refers to the CSS configurations other than CSS 1 and CSS 2. Here, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected within a time slot or a span are not determined based on CSS 1. In this way, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs occupied by CSS 1 can be used to schedule unicast services in the USS set, avoiding the waste of PDCCH detection capabilities.

[0191] Next, the method for determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span in Application Implementation 1 will be described in detail:

[0192] First, within time slot n or span n, a set is defined that includes the CSS set associated with multicast and / or broadcast services reported in the first information, and other CSS sets not used for scheduling multicast and / or broadcast services. S CSS This is the set of CSS elements that excludes CSS 1, where the set... S CSS The number of elements is I CSSDefine the set of USS as S USS , where set S USS The number of elements is J USS ,gather S USS set in S j ( Sort in ascending order based on the search space set index.

[0193] definition ( ) is used for detection sets S CSS ( i The number of PDCCH candidate sets is calculated, defined as follows: ( ) is used for detection sets The number of PDCCH candidate sets calculated.

[0194] For CSS collections, terminal detection The total number of PDCCH candidate sets needed is 1 The number of non-overlapping CCEs.

[0195] definition V CCE ( ) is a set A set of non-overlapping CCEs It is a set V CCE ( The number of elements in a set, where the set is... The non-overlapping CCE is determined by the assigned PDCCH candidate set of the detection CSS set and all detections. of S USS ( k The assigned PDCCH candidate set is determined by the PDCCH candidate set.

[0196] set up

[0197] ;

[0198] ;

[0199] j =0;

[0200] when ,and At that time, allocation A set of PDCCH candidates is used to detect the set. After that, , , j = j +1;

[0201] when Stop the loop when the time is reached.

[0202] When no PDCCH candidate set is assigned for detection, the terminal does not detect the corresponding set. S USS PDCCH in the middle.

[0203] here, and They can be replaced with respectively and , and They can be replaced with respectively and ,in, It is the maximum number of PDCCH candidate sets that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of non-overlapping CCEs that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of PDCCH candidate sets that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of non-overlapping CCEs that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell.

[0204] Combination Figure 4 The channel detection method in this application embodiment includes the following steps:

[0205] Step 1: The network side has configured CSS 1 via BCCH and / or MCCH for scheduling multicast and / or broadcast services.

[0206] Among them, the two PDCCH candidate sets of CSS 1 are used to schedule multicast and / or broadcast service 1, and the TMGI corresponding to multicast and / or broadcast service 1 is TMGI 1, and the corresponding G-RNTI is G-RNTI 1; the other two PDCCH candidate sets of CSS 1 are used to schedule multicast and / or broadcast service 2, and the TMGI corresponding to multicast and / or broadcast service 2 is TMGI 2, and the corresponding G-RNTI is G-RNTI 2.

[0207] Step 2: Based on the configuration information transmitted by the network side through BCCH and / or MCCH, the terminal reports the first information to the network side, and uses the first information to indicate to the network side that the multicast and / or broadcast services that the terminal is receiving, is interested in receiving, or expects to receive are broadcast / broadcast services 2.

[0208] The first information to be reported can be TMGI 2, G-RNTI 2, or CSS 2.

[0209] Step 3: Based on the PDCCH candidate set used for scheduling multicast and / or broadcast services 2 in CSS 1 and other CSSs, the terminal and the base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span.

[0210] Among them, the CSS in other CSSs refers to the CSS configurations other than CSS 1. Here, the terminal does not determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected within a time slot or a span based on the two PDCCH candidate sets used in CSS 1 for scheduling multicast and / or broadcast service 1. In this way, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs occupied by CSS 1 for scheduling multicast and / or broadcast service 1 can be used to schedule unicast services in the USS set, avoiding the waste of PDCCH detection capabilities.

[0211] Next, the method for determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span in Application Example 2 will be described in detail:

[0212] For all search space sets within time slot n or span n, the CSS set is defined as follows: S CSS , where set S CSS The number of elements is I CSS Define the set of USS as S USS , where set S USS The number of elements is J USS ,gather S USS set in S j ( Sort in ascending order based on the search space set index.

[0213] definition ( ) is used for detection sets S CSS ( i The number of PDCCH candidate sets is calculated, defined as follows: ( ) is used for detection sets The number of PDCCH candidate sets calculated.

[0214] For CSS collections, terminal detection The total number of PDCCH candidate sets needed is 1 The number of non-overlapping CCEs. Here, for PDCCH candidate sets used for scheduling multicast and / or broadcast services that are not reported in the first information, they are not counted. and In other words, the two PDCCH candidate sets used in CSS 1 for scheduling multicast and / or broadcast services are not counted in the calculation. and middle.

[0215] definition V CCE ( ) is a set A set of non-overlapping CCEs It is a set V CCE ( The number of elements in a set, where the set is... The non-overlapping CCE is determined by the assigned PDCCH candidate set of the detection CSS set and all detections. of S USS ( k The assigned PDCCH candidate set is determined by the PDCCH candidate set.

[0216] set up:

[0217] ;

[0218] ;

[0219] j =0;

[0220] when ,and At that time, allocation A set of PDCCH candidates is used to detect the set. After that, , , j = j +1;

[0221] when Stop the loop when the time is reached.

[0222] When no PDCCH candidate set is assigned for detection, the terminal does not detect the corresponding set. SUSS PDCCH in the middle.

[0223] here, and They can be replaced with respectively and , and They can be replaced with respectively and ,in, It is the maximum number of PDCCH candidate sets that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of non-overlapping CCEs that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of PDCCH candidate sets that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of non-overlapping CCEs that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell.

[0224] Combination Figure 5 The channel detection method in this application embodiment includes the following steps:

[0225] Step 1: The network side configures three CSSs for scheduling multicast / broadcast services via BCCH and / or MCCH.

[0226] Among them, CSS 1 is used to schedule multicast and / or broadcast service 1, and the TMGI corresponding to multicast and / or broadcast service 1 is TMGI 1, and the corresponding G-RNTI is G-RNTI 1; CSS 2 is used to schedule multicast and / or broadcast service 2, and the TMGI corresponding to multicast and / or broadcast service 2 is TMGI 2, and the corresponding G-RNTI is G-RNTI 2; two of the PDCCH candidate sets of CSS 3 are used to schedule multicast and / or broadcast service 3, and the TMGI corresponding to multicast and / or broadcast service 3 is TMGI 3, and the corresponding G-RNTI is G-RNTI 3; the other two PDCCH candidate sets of CSS 3 are used to schedule multicast and / or broadcast service 4, and the TMGI corresponding to multicast and / or broadcast service 4 is TMGI 4, and the corresponding G-RNTI is G-RNTI 4.

[0227] Step 2: Based on the configuration information transmitted by the network side through BCCH and / or MCCH, the terminal reports the first information to the network side, and uses the first information to indicate to the network side that the multicast and / or broadcast services that the terminal is receiving, is interested in receiving, or expects to receive are multicast and / or broadcast service 2 and multicast and / or broadcast service 4.

[0228] The first information to be reported can be TMGI 2 and TMGI 4, or G-RNTI 2 and G-RNTI 4, or CSS 2.

[0229] Step 3: Based on CSS 2 and the PDCCH candidate set used for scheduling multicast and / or broadcast services 4 in CSS 3, as well as other CSS, the terminal and the base station determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal in a time slot or a span.

[0230] Among them, the other CSSs are CSSs other than CSS 1, CSS 2 and CSS 3. Here, the terminal does not determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set to be detected in a time slot or a span based on the PDCCH candidate sets occupied by the PDCCH candidate sets used to schedule multicast and / or broadcast services 3 in CSS 1 and CSS 3. In this way, the number of PDCCH candidate sets occupied by the PDCCH candidate sets used to schedule multicast and / or broadcast services 3 in CSS 1 and CSS 3 and / or the number of non-overlapping CCEs can be used to schedule unicast services in the USS set, avoiding the waste of PDCCH detection capabilities.

[0231] Next, the method for determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span in Application Implementation Example 3 will be described in detail:

[0232] Within time slot n or span n, the set defined as the CSS set associated with multicast and / or broadcast services reported in the first information, and other CSS sets not used for scheduling multicast and / or broadcast services, is as follows: S CSS This is the set of CSS elements that excludes CSS 1, where the set... S CSS The number of elements is I CSS Define the USS set as a set S USS , where set S USS The number of elements is J USS ,gather S USS set in S j ( Sort in ascending order based on the search space set index.

[0233] definition ( ) is used for detection sets S CSS ( i The number of PDCCH candidate sets is calculated, defined as follows: ( ) is used for detection sets The number of PDCCH candidate sets calculated.

[0234] For CSS collections, terminal detection The total number of PDCCH candidate sets needed is 1 The number of non-overlapping CCEs. Here, for PDCCH candidate sets used for scheduling multicast and / or broadcast services that are not reported in the first information, they are not counted. and In other words, the two PDCCH candidate sets used in CSS3 for scheduling multicast and / or broadcast services are not counted in the calculation. and middle.

[0235] definition V CCE ( ) is a set A set of non-overlapping CCEs It is a set V CCE ( The number of elements in a set, where the set is... The non-overlapping CCE is determined by the assigned PDCCH candidate set of the detection CSS set and all detections. of S USS ( k The assigned PDCCH candidate set is determined by the PDCCH candidate set.

[0236] set up:

[0237] ;

[0238] ;

[0239] j =0;

[0240] when ,and At that time, allocation A set of PDCCH candidates is used to detect the set. After that, , , j = j +1;

[0241] when Stop the loop when the time is reached.

[0242] When no PDCCH candidate set is assigned for detection, the terminal does not detect the corresponding set. S USS PDCCH in the middle.

[0243] here, and They can be replaced with respectively and , and They can be replaced with respectively and ,in, It is the maximum number of PDCCH candidate sets that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of non-overlapping CCEs that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of PDCCH candidate sets that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell. It is the maximum number of non-overlapping CCEs that the terminal can detect within one time slot of the activated downlink BWP in the scheduling cell.

[0244] To implement the terminal-side method of this application embodiment, this application embodiment also provides a channel detection device, which is installed on the terminal, such as... Figure 6 As shown, the device includes:

[0245] The first sending unit 601 is used to report the first information to the network side;

[0246] The first determining unit 602 is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected within a time slot or a span; wherein...

[0247] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0248] In one embodiment, the first information includes at least one of the following:

[0249] An index identifying multicast and / or broadcast services;

[0250] G-RNTI;

[0251] TMGI;

[0252] Information related to the search space for scheduling multicast and / or broadcast services;

[0253] Priority information for multicast and / or broadcast services.

[0254] In one embodiment, the device further includes:

[0255] The second receiving unit is used to receive configuration information for multicast and / or broadcast services sent by the network side before reporting the first information to the network side.

[0256] In one embodiment, the device further includes:

[0257] The third determining unit is used to determine the content of the first information based on the configuration information of the multicast and / or broadcast services before reporting the first information to the network side.

[0258] In one embodiment, the configuration information for the multicast and / or broadcast services includes at least one of the following:

[0259] Configuration information for multicast and / or broadcast services transmitted via BCCH;

[0260] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0261] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information; the predetermined order represents the degree of interest of the terminal in the multicast and / or broadcast services.

[0262] In one embodiment, the first determining unit 602 is configured to:

[0263] Based on the first CSS set and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein...

[0264] The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0265] In one embodiment, the first determining unit 602 is configured to:

[0266] Based on the first and second PDCCH candidate sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where,

[0267] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0268] In one embodiment, the first determining unit 602 is further configured to:

[0269] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0270] The second information includes at least one of the following:

[0271] Index of the CSS collection;

[0272] The number of PDCCH candidate sets in the CSS collection;

[0273] Aggregation level of the PDCCH candidate set in the CSS collection.

[0274] In one embodiment, the device further includes:

[0275] The fourth determining unit is configured to determine the first CSS set based on second information associated with the multicast and / or broadcast services represented in the first information; wherein,

[0276] The second information includes at least one of the following:

[0277] Index of the CSS collection;

[0278] The number of PDCCH candidate sets in the CSS collection;

[0279] Aggregation level of the PDCCH candidate set in the CSS collection.

[0280] In one embodiment, the device further includes:

[0281] The fifth determining unit is used to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the terminal-specific search space (USS) set detected by the terminal within a time slot or a span.

[0282] In one embodiment, the device further includes:

[0283] Detect the scheduling PDCCH corresponding to the multicast and / or broadcast services represented in the first information.

[0284] In practical applications, the first transmitting unit 601 and the second receiving unit can be implemented by the communication interface in the channel detection device; the third determining unit, the fourth determining unit and the fifth determining unit can be implemented by the processor in the channel detection device.

[0285] To implement the network-side method of this application embodiment, this application embodiment also provides a channel detection device, which is installed on the base station, such as... Figure 7 As shown, the device includes:

[0286] The first receiving unit 701 is used to receive the first information reported by the terminal;

[0287] The second determining unit 702 is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected by the terminal within a time slot or a span; wherein...

[0288] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0289] In one embodiment, the first information includes at least one of the following:

[0290] An index identifying multicast and / or broadcast services;

[0291] G-RNTI;

[0292] TMGI;

[0293] Information related to the search space for scheduling multicast and / or broadcast services;

[0294] Priority information for multicast and / or broadcast services.

[0295] In one embodiment, the device further includes:

[0296] The second sending unit is used to send configuration information for multicast and / or broadcast services to the receiving terminal before the first information reported by the receiving terminal.

[0297] In one embodiment, the second transmitting unit is used to:

[0298] Configuration information for multicast and / or broadcast services transmitted via BCCH; and / or,

[0299] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0300] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information; the predetermined order represents the degree of interest of the terminal in the multicast and / or broadcast services.

[0301] In one embodiment, the second determining unit 702 is configured to:

[0302] Based on the first CSS set and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein...

[0303] The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0304] In one embodiment, the second determining unit 702 is configured to:

[0305] Based on the first PDCCH candidate set and the second PDCCH candidate set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span are determined; wherein...

[0306] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0307] In one embodiment, the second determining unit 702 is further configured to:

[0308] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0309] The second information includes at least one of the following:

[0310] Index of the CSS collection;

[0311] The number of PDCCH candidate sets in the CSS collection;

[0312] Aggregation level of the PDCCH candidate set in the CSS collection.

[0313] In practical applications, the first receiving unit 701 and the second sending unit, and the second determining unit 702, can be implemented by the communication interface in the channel detection device; the second determining unit 702 can be implemented by the processor in the channel detection device.

[0314] It should be noted that the channel detection device provided in the above embodiments is only illustrated by the division of the above program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the channel detection device and the channel detection method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0315] Based on the hardware implementation of the above program modules, and in order to implement the terminal-side method of the embodiments of this application, the embodiments of this application also provide a terminal, such as... Figure 8 As shown, terminal 800 includes:

[0316] The first communication interface 801 is capable of exchanging information with other network nodes;

[0317] The first processor 802 is connected to the first communication interface 801 to enable information interaction with other network nodes and to execute the methods provided by one or more of the aforementioned terminal-side technical solutions when running a computer program. The computer program is stored in the first memory 803.

[0318] Specifically, the first communication interface 801 is used to report the first information to the network side;

[0319] The first processor 802 is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected within a time slot or a span; wherein,

[0320] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0321] In one embodiment, the first information includes at least one of the following:

[0322] An index identifying multicast and / or broadcast services;

[0323] G-RNTI;

[0324] TMGI;

[0325] Information related to the search space for scheduling multicast and / or broadcast services;

[0326] Priority information for multicast and / or broadcast services.

[0327] In one embodiment, the first communication interface 801 is further configured to:

[0328] Before reporting the first information to the network side, receive configuration information for multicast and / or broadcast services sent by the network side.

[0329] In one embodiment, the first processor 802 is further configured to:

[0330] Before reporting the first information to the network side, the content of the first information is determined based on the configuration information of the multicast and / or broadcast services.

[0331] In one embodiment, the configuration information for the multicast and / or broadcast services includes at least one of the following:

[0332] Configuration information for multicast and / or broadcast services transmitted via BCCH;

[0333] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0334] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information; the predetermined order represents the degree of interest of the terminal in the multicast and / or broadcast services.

[0335] In one embodiment, the first processor 802 is used to:

[0336] Based on the first CSS set and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein...

[0337] The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0338] In one embodiment, the first processor 802 is used to:

[0339] Based on the first and second PDCCH candidate sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where,

[0340] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0341] In one embodiment, the first processor 802 is further configured to:

[0342] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0343] The second information includes at least one of the following:

[0344] Index of the CSS collection;

[0345] The number of PDCCH candidate sets in the CSS collection;

[0346] Aggregation level of the PDCCH candidate set in the CSS collection.

[0347] In one embodiment, the first processor 802 is further configured to:

[0348] Based on the first information, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the USS set detected by the terminal within a time slot or a span.

[0349] In one embodiment, the first processor 802, in conjunction with the first communication interface 801, is used for:

[0350] Detect the scheduling PDCCH corresponding to the multicast and / or broadcast services represented in the first information.

[0351] It should be noted that the specific processing procedures of the first processor 802 and the first communication interface 801 can be understood by referring to the above method.

[0352] Of course, in practical applications, the various components in terminal 800 are coupled together through bus system 804. It can be understood that bus system 804 is used to implement communication between these components. In addition to a data bus, bus system 804 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 8 The general labeled all buses as Bus System 804.

[0353] The first memory 803 in this embodiment is used to store various types of data to support the operation of the terminal 800. Examples of such data include any computer program used to operate on the terminal 800.

[0354] The methods disclosed in the embodiments of this application can be applied to the first processor 802, or implemented by the first processor 802. The first processor 802 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the first processor 802. The first processor 802 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 802 can implement or execute the methods, steps, and logic block diagrams 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 can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the first memory 803. The first processor 802 reads the information in the first memory 803 and completes the steps of the aforementioned method in combination with its hardware.

[0355] In an exemplary embodiment, terminal 800 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, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0356] Based on the hardware implementation of the above program modules, and in order to implement the network-side method of this application embodiment, this application embodiment also provides a base station, such as... Figure 9 As shown, the base station 900 includes:

[0357] The second communication interface 901 is capable of exchanging information with other network nodes;

[0358] The second processor 902 is connected to the second communication interface 901 to enable information interaction with other network nodes and to execute the methods provided by one or more of the aforementioned network-side technical solutions when running a computer program. The computer program is stored in the second memory 903.

[0359] Specifically, the second communication interface 901 is used to receive the first information reported by the terminal;

[0360] The second processor 902 is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected by the terminal within a time slot or a span; wherein,

[0361] The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services.

[0362] In one embodiment, the first information includes at least one of the following:

[0363] An index identifying multicast and / or broadcast services;

[0364] G-RNTI;

[0365] TMGI;

[0366] Information related to the search space for scheduling multicast and / or broadcast services;

[0367] Priority information for multicast and / or broadcast services.

[0368] In one embodiment, the second communication interface 901 is further used for:

[0369] Before the first information reported by the receiving terminal, configuration information for multicast and / or broadcast services is sent to the terminal.

[0370] In one embodiment, the second communication interface 901 is further used for:

[0371] Configuration information for multicast and / or broadcast services transmitted via BCCH; and / or,

[0372] Configuration information for multicast and / or broadcast services transmitted via MCCH.

[0373] In one embodiment, the multicast and / or broadcast services represented in the first information are arranged in a predetermined order in the first information; the predetermined order represents the degree of interest of the terminal in the multicast and / or broadcast services.

[0374] In one embodiment, the second processor 902 is configured to:

[0375] Based on the first CSS set and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein...

[0376] The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

[0377] In one embodiment, the second processor 902 is configured to:

[0378] Based on the first PDCCH candidate set and the second PDCCH candidate set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span are determined; wherein...

[0379] The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

[0380] In one embodiment, the second processor 902 is further configured to:

[0381] The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein...

[0382] The second information includes at least one of the following:

[0383] Index of the CSS collection;

[0384] The number of PDCCH candidate sets in the CSS collection;

[0385] Aggregation level of the PDCCH candidate set in the CSS collection.

[0386] It should be noted that the specific processing procedures of the second processor 902 and the second communication interface 901 can be understood by referring to the above method.

[0387] Of course, in practical applications, the various components in base station 900 are coupled together through bus system 904. It can be understood that bus system 904 is used to realize the connection and communication between these components. In addition to the data bus, bus system 904 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, in... Figure 9 The general labeled all buses as Bus System 904.

[0388] The second memory 903 in this embodiment is used to store various types of data to support the operation of the base station 900. Examples of such data include any computer program used to operate on the base station 900.

[0389] The methods disclosed in the embodiments of this application can be applied to, or implemented by, the second processor 902. The second processor 902 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the integrated logic circuitry of the hardware or by instructions in the form of software within the second processor 902. The second processor 902 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 902 can implement or execute the methods, steps, and logic block diagrams 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 can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, specifically a second memory 903. The second processor 902 reads information from the second memory 903 and, in conjunction with its hardware, completes the steps of the aforementioned method.

[0390] In an exemplary embodiment, base station 900 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 aforementioned method.

[0391] It is understood that the memories (first memory 803, second memory 903) in the embodiments of this application can be volatile memory or non-volatile memory, or both. Non-volatile memory can 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, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, 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 Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0392] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a first memory 803 storing a computer program, which can be executed by a first processor 802 of a terminal 800 to complete the steps described in the aforementioned terminal-side method. Another example is a second memory 903 storing a computer program, which can be executed by a second processor 902 of a base station 900 to complete the steps described in the aforementioned network-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0393] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0394] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0395] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application.

Claims

1. A method for channel detection, characterized in that, Applied to terminals, including: Receive configuration information for multicast and / or broadcast services sent by the network side; The content of the first information is determined based on the configuration information of the multicast and / or broadcast services; Report the first information to the network side; Based on the first information, determine the number of Physical Downlink Control Channel (PDCCH) candidate sets and / or the number of non-overlapping Control Channel Elements (CCEs) in the Common Search Space (CSS) set detected within a time slot or a span; wherein... The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services; the first information is also used by the base station to determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span; when determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span, the terminal and the base station do not include the PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that the terminal did not report in the first information.

2. The method according to claim 1, characterized in that, The first information includes at least one of the following: An index identifying multicast and / or broadcast services; Group wireless network temporary identifier G RNTI; Temporary Mobility Group Identifier (TMGI); Information related to the search space for scheduling multicast and / or broadcast services; Priority information for multicast and / or broadcast services.

3. The method according to claim 1, characterized in that, The configuration information for the multicast and / or broadcast services includes at least one of the following: Configuration information for multicast and / or broadcast services transmitted via the Broadcast Control Channel (BCCH); Configuration information for multicast and / or broadcast services transmitted via the Multicast Control Channel (MCCH).

4. The method according to claim 1 or 2, characterized in that, The multicast and / or broadcast services represented in the first information are arranged in a set order in the first information; the set order represents the degree of interest of the terminal in the multicast and / or broadcast services.

5. The method according to claim 1 or 2, characterized in that, The step of determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the detected CSS set within a time slot or a span based on the first information includes: Based on the first and second CSS sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where... The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

6. The method according to claim 1 or 2, characterized in that, The step of determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the detected CSS set within a time slot or a span based on the first information includes: Based on the first and second PDCCH candidate sets, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS sets detected within a time slot or a span; where, The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

7. The method according to claim 6, characterized in that, The method further includes: The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein... The second information includes at least one of the following: Index of the CSS collection; The number of PDCCH candidate sets in the CSS collection; Aggregation level of the PDCCH candidate set in the CSS collection.

8. The method according to claim 1, characterized in that, The method further includes: Based on the first information, determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the terminal-specific search space (USS) set detected by the terminal within a time slot or a span.

9. The method according to claim 1, characterized in that, The method further includes: Detect the scheduling PDCCH corresponding to the multicast and / or broadcast services represented in the first information.

10. A channel detection method, characterized in that, Applied to a base station, the method includes: The configuration information for multicast and / or broadcast services is sent to the terminal; the configuration information for multicast and / or broadcast services is used by the terminal to determine the content of the first information. Receive the first information reported by the terminal; Based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein... The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services; the first information is also used by the terminal to determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span; when determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span, the terminal and the base station do not include the PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that the terminal did not report in the first information.

11. The method according to claim 10, characterized in that, The first information includes at least one of the following: An index identifying multicast and / or broadcast services; G RNAI; TMGI; Information related to the search space for scheduling multicast and / or broadcast services; Priority information for multicast and / or broadcast services.

12. The method according to claim 10, characterized in that, The step of sending configuration information for multicast and / or broadcast services to the terminal includes: Configuration information for multicast and / or broadcast services transmitted via BCCH; and / or, Configuration information for multicast and / or broadcast services transmitted via MCCH.

13. The method according to claim 10 or 11, characterized in that, The multicast and / or broadcast services represented in the first information are arranged in a set order in the first information; the set order represents the degree of interest of the terminal in the multicast and / or broadcast services.

14. The method according to claim 10 or 11, characterized in that, The step of determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span based on the first information includes: Based on the first CSS set and the second CSS set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS sets detected by the terminal within a time slot or a span are determined; wherein... The first CSS set represents the CSS set containing the PDCCH used to schedule the multicast and / or broadcast services represented in the first information; the second CSS set represents the CSS set containing the PDCCH not used to schedule multicast and / or broadcast services.

15. The method according to claim 10 or 11, characterized in that, The step of determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span based on the first information includes: Based on the first PDCCH candidate set and the second PDCCH candidate set, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs for the CSS set detected by the terminal within a time slot or a span are determined; wherein... The first PDCCH candidate set represents the PDCCH candidate set used for scheduling multicast and / or broadcast services represented in the first information; the second PDCCH candidate set represents the PDCCH candidate set not used for scheduling multicast and / or broadcast services.

16. The method according to claim 15, characterized in that, The method further includes: The first PDCCH candidate set is determined based on second information associated with the multicast / broadcast services represented in the first information; wherein... The second information includes at least one of the following: Index of the CSS collection; The number of PDCCH candidate sets in the CSS collection; Aggregation level of the PDCCH candidate set in the CSS collection.

17. A channel detection device, characterized in that, include: The first sending unit is used to report the first information to the network side; The first receiving unit is configured to receive configuration information for multicast and / or broadcast services sent by the network side before reporting the first information to the network side. The third determining unit is used to determine the content of the first information based on the configuration information of the multicast and / or broadcast services before reporting the first information to the network side; The first determining unit is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected within a time slot or a span; wherein... The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services; the first information is also used by the base station to determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal in a time slot or a span; When determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span, the terminal and the base station do not include the PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that the terminal did not report in the first information.

18. A channel detection device, characterized in that, include: The first receiving unit is used to receive the first information reported by the terminal. The second sending unit is used to send configuration information for multicast and / or broadcast services to the receiving terminal before the first information reported by the receiving terminal. The configuration information for the multicast and / or broadcast services is used by the terminal to determine the content in the first information; The second determining unit is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected by the terminal within a time slot or a span; wherein... The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services; the first information is also used by the terminal to determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span; When determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span, the terminal and the base station do not include the PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that the terminal did not report in the first information.

19. A terminal, characterized in that, include: A first processor and a first communication interface; wherein... The first communication interface is used to report first information to the network side; The first communication interface is further configured to receive configuration information for multicast and / or broadcast services sent by the network side before reporting the first information to the network side; The first processor is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected within a time slot or a span; wherein, the first information represents the multicast and / or broadcast services that the terminal is receiving, is interested in receiving, or expects to receive; the first information is further configured by the base station to determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span; when determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span, the terminal and the base station do not include the PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that the terminal did not report in the first information; The first processor is further configured to determine the content of the first information based on the configuration information of the multicast and / or broadcast services before reporting the first information to the network side.

20. A base station, characterized in that, include: A second processor and a second communication interface; wherein... The second communication interface is used to receive the first information reported by the terminal; The second communication interface is further configured to send configuration information for multicast and / or broadcast services to the receiving terminal before the first information is reported by the receiving terminal; the configuration information for multicast and / or broadcast services is used by the terminal to determine the content of the first information; The second processor is configured to determine, based on the first information, the number of PDCCH candidate sets and / or the number of non-overlapping CCEs in the CSS set detected by the terminal within a time slot or a span; wherein, The first information indicates that the terminal is receiving, is interested in receiving, or expects to receive multicast and / or broadcast services; the first information is also used by the terminal to determine the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span; when determining the number of PDCCH candidate sets and / or the number of non-overlapping CCEs of the CSS set detected by the terminal within a time slot or a span, the terminal and the base station do not include the PDCCH candidate sets and non-overlapping CCEs of multicast and / or broadcast services that the terminal did not report in the first information.

21. A terminal, characterized in that, include: A first processor and a first memory for storing computer programs capable of running on the processor. Wherein, when the first processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 9.

22. A base station, characterized in that, include: A second processor and a second memory for storing computer programs that can run on the processor. Wherein, when the second processor is used to run the computer program, it performs the steps of the method according to any one of claims 10 to 16.

23. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9, or the steps of the method according to any one of claims 10 to 16.

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