Information communication, reception, configuration and transmission methods, resource configuration method and device

Abstract

The present invention provides a method for information communication, reception, configuration and transmission, a resource configuration method and a device, belonging to the field of wireless communication technology. Among them, an information communication method applied to the network side includes: sending a first downlink control information (DCI) scrambled with a first radio network temporary identifier (RNTI) to a terminal, where the first DCI is used to indicate whether the control information of a multicast service and / or a broadcast service is updated or updated related information; or: sending a second DCI scrambled with a second RNTI to the terminal, where the second DCI is used to indicate whether the control information of a multicast service and / or a broadcast service set is updated or updated related information; wherein, the control information includes configuration information of the multicast service and / or the broadcast service. The present invention can accelerate the terminal's acquisition of MCCH update information, obtain accurate multicast and / or broadcast data more quickly, and meet the requirements of low latency. It can be applied to multiple 5G application scenarios.

Description

[0001] This application is a divisional application of the application with the application date of August 6, 2020, application number 202010785850.2, and invention creation name "Information Communication, Reception, Configuration and Sending Methods, Resource Configuration Method and Device". Technical Field

[0002] The present invention relates to the field of wireless communication technologies, and in particular, to an information communication, reception, configuration and sending method, a resource configuration method and a device. Background Art

[0003] Related technical requirements: Specify the basic functions of the radio access network (RAN) for broadcasting / multicasting for a terminal in the connected state (RRC CONNECTED).

[0004] Please refer to Figure 1 , the change solution of the single cell - multicast control channel (SC - MCCH) in the prior art is that the entire MCCH information is transmitted periodically based on the "repetition period". The "modification period" is defined as an integer multiple of the "repetition period". The terminal (UE) receives the MCCH update indication in the nth modification period and then waits until the next modification period to read the change of the MCCH information. This method of using the high - layer RRC signaling to notify the period and the modification period (tens of milliseconds) to implement the update of the SC - MCCH information takes a long time and the terminal obtains the MCCH update information slowly. Summary of the Invention

[0005] In view of this, the present invention provides an information communication, reception, configuration and sending method, a resource configuration method and a device, which are used to solve the problem that the method of using the high - layer RRC signaling to notify the period and the modification period to implement the update of the SC - MCCH information takes a long time and the terminal obtains the MCCH update information slowly.

[0006] To solve the above - mentioned technical problems, in a first aspect, the present invention provides an information communication method, which is applied to a network - side device and includes:

[0007] Sending a first DCI scrambled with a first RNTI to a terminal, where the first DCI is used to indicate whether the control information of a multicast service and / or a broadcast service is updated or update - related information; or:

[0008] Sending a second DCI scrambled with a second RNTI to a terminal, where the second DCI is used to indicate whether the control information of a multicast service and / or a broadcast service set is updated or update - related information;

[0009] Among them, the control information includes configuration information of multicast services and / or broadcast services.

[0010] Optionally, the configuration information of one multicast service and / or broadcast service includes at least one of the following items:

[0011] List of TMGIs;

[0012] Session ID corresponding to the TMGI in the list of TMGIs;

[0013] G-RNTI corresponding to the TMGI in the list of TMGIs;

[0014] BWP corresponding to the TMGI in the list of TMGIs;

[0015] Subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[0016] Logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[0017] DRX configuration corresponding to the TMGI in the list of TMGIs;

[0018] Uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[0019] Uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[0020] Optionally, the first DCI is used to indicate at least one of the following items:

[0021] The control information of multicast services and / or broadcast services has changed;

[0022] Whether the control information of multicast services and / or broadcast services has changed;

[0023] The changed control information of multicast services and / or broadcast services;

[0024] The type of the changed control information of multicast services and / or broadcast services;

[0025] Resource information for reading the changed control information of multicast services and / or broadcast services.

[0026] Optionally, when the first DCI is used to indicate that the control information of multicast services and / or broadcast services has changed, the first DCI is further used to indicate at least one of the following items:

[0027] The configuration information of multicast services and / or broadcast services has changed;

[0028] The transmission mode of the multicast service and / or the broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0029] The transmission mode of the multicast service and / or the broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0030] The transmission mode of the multicast service and / or the broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0031] The transmission mode of the multicast service and / or the broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0032] The multicast or broadcast service in which the control information of the multicast service and / or the broadcast service changes;

[0033] A new group of multicast services and / or broadcast services is added;

[0034] An existing group of multicast services and / or broadcast services is deleted;

[0035] An existing group of multicast services and / or broadcast services is updated;

[0036] The HARQ feedback of the multicast service and / or the broadcast service is closed or enabled;

[0037] The CSI feedback of the multicast service and / or the broadcast service is enabled or closed.

[0038] Optionally, the first DCI is used to indicate at least one of the following:

[0039] The configuration information of the multicast service and / or the broadcast service changes;

[0040] The transmission mode of the multicast service and / or the broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0041] The transmission mode of the multicast service and / or the broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0042] The transmission mode of the multicast service and / or the broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0043] The transmission mode of the multicast service and / or the broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0044] The multicast or broadcast service for which the control information of the multicast service and / or broadcast service has changed;

[0045] A group that has added a new multicast service and / or broadcast service;

[0046] A group that has deleted an existing multicast service and / or broadcast service;

[0047] A group that has updated an existing multicast service and / or broadcast service;

[0048] Turn on or off the HARQ feedback of the multicast service and / or broadcast service;

[0049] Turn on or off the CSI feedback of the multicast service and / or broadcast service.

[0050] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services in a cell; and / or,

[0051] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services in a multicast area and / or broadcast area.

[0052] Optionally, the second DCI is used to indicate at least one of the following:

[0053] The control information of the set of one or more multicast services and / or broadcast services has changed;

[0054] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[0055] The control information of the set of one or more multicast services and / or broadcast services that has changed;

[0056] The type of the control information of the set of one or more multicast services and / or broadcast services that has changed;

[0057] Read the resource information of the control information of the set of one or more multicast services and / or broadcast services that has changed.

[0058] Optionally, in the case where the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[0059] The configuration information of the set of multicast services and / or broadcast services has changed;

[0060] The transmission mode of the set of multicast services and / or broadcast services has changed from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[0061] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode in multiple cells to the single-point-to-multipoint transmission mode in a single cell;

[0062] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[0063] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[0064] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[0065] A group with new multicast services and / or broadcast services added;

[0066] A group of existing multicast services and / or broadcast services deleted;

[0067] An existing group of multicast services and / or broadcast services updated;

[0068] Close or enable the HARQ feedback of the multicast service and / or broadcast service set;

[0069] Enable or close the CSI feedback of the multicast service and / or broadcast service set.

[0070] Optionally, the second DCI is used to indicate at least one of the following:

[0071] The configuration information of the multicast service and / or broadcast service set changes;

[0072] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode in a single cell to the single-point-to-multipoint transmission mode in multiple cells;

[0073] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode in multiple cells to the single-point-to-multipoint transmission mode in a single cell;

[0074] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[0075] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[0076] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[0077] A group with new multicast services and / or broadcast services is added;

[0078] A group with existing multicast services and / or broadcast services is deleted;

[0079] An existing group with multicast services and / or broadcast services is updated;

[0080] Close or open the HARQ feedback for the multicast service and / or broadcast service set;

[0081] Open or close the CSI feedback for the multicast service and / or broadcast service set;

[0082] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[0083] Optionally, after sending the first DCI scrambled with the first RNTI to the terminal, it further includes:

[0084] When the first DCI includes information indicating a change in the control information for the multicast service and / or broadcast service, and / or:

[0085] When including information indicating that the control information resource for the multicast service and / or broadcast service carries change information, send the change information of the control information for the multicast service and / or broadcast service.

[0086] Optionally, the method further includes:

[0087] Broadcast each piece of the control information for multiple multicast services and / or broadcast services; or,

[0088] Broadcast the control information for the first multicast service and / or broadcast service among the control information for multiple multicast services and / or broadcast services, and the control information for the other multicast services and / or broadcast services among the multiple multicast services and / or broadcast services is the same as the control information for the first multicast service and / or broadcast service;

[0089] Wherein, the control information includes at least one of a repetition period, an offset, a start subframe, and a modification period.

[0090] The present invention also provides an information communication method, applied to a terminal, including:

[0091] Receive the first DCI scrambled with the first RNTI sent by the network side device, where the first DCI is used to indicate whether the control information for a multicast service and / or broadcast service is updated or update-related information; or:

[0092] Receive a second DCI scrambled with a second RNTI sent by a network-side device, where the second DCI is used to indicate whether control information of a multicast service and / or a broadcast service set is updated or updated related information;

[0093] Wherein, the control information includes configuration information of a multicast service and / or a broadcast service.

[0094] Optionally, the configuration information of the multicast service and / or the broadcast service includes at least one of the following items:

[0095] A list of TMGIs;

[0096] The Session ID corresponding to the TMGI in the list of TMGIs;

[0097] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[0098] The BWP corresponding to the TMGI in the list of TMGIs;

[0099] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[0100] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[0101] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[0102] The uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[0103] The uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[0104] Optionally, the first DCI is used to indicate at least one of the following items:

[0105] The control information of the multicast service and / or the broadcast service has changed;

[0106] Whether the control information of the multicast service and / or the broadcast service has changed;

[0107] The changed control information of the multicast service and / or the broadcast service;

[0108] The type of the changed control information of the multicast service and / or the broadcast service;

[0109] Read the resource information of the changed control information of the multicast service and / or the broadcast service.

[0110] Optionally, when the first DCI is used to indicate that the control information for multicast service and / or broadcast service has changed, the first DCI is further used to indicate at least one of the following:

[0111] The configuration information of the multicast service and / or broadcast service has changed;

[0112] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0113] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0114] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0115] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0116] The multicast or broadcast service for which the control information of the multicast service and / or broadcast service has changed;

[0117] The group to which a new multicast service and / or broadcast service is added;

[0118] The group of existing multicast services and / or broadcast services that is deleted;

[0119] The group of existing multicast services and / or broadcast services that is updated;

[0120] Close or open the HARQ feedback of the multicast service and / or broadcast service;

[0121] Open or close the CSI feedback of the multicast service and / or broadcast service.

[0122] Optionally, the first DCI is used to indicate at least one of the following:

[0123] The configuration information of the multicast service and / or broadcast service has changed;

[0124] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0125] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0126] The transmission mode of the multicast service and / or the broadcast service changes from a point-to-multipoint transmission mode to a point-to-point transmission mode;

[0127] The transmission mode of the multicast service and / or the broadcast service changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[0128] The multicast or broadcast service in which the control information of the multicast service and / or the broadcast service changes;

[0129] A group to which a new multicast service and / or a broadcast service is added;

[0130] A group of existing multicast services and / or broadcast services that is deleted;

[0131] A group of existing multicast services and / or broadcast services that is updated;

[0132] Close or enable the HARQ feedback of the multicast service and / or the broadcast service;

[0133] Enable or disable the CSI feedback of the multicast service and / or the broadcast service.

[0134] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[0135] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or a broadcast area.

[0136] Optionally, the second DCI is used to indicate at least one of the following:

[0137] The control information of the set of one or more multicast services and / or broadcast services has changed;

[0138] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[0139] The changed control information of the set of one or more multicast services and / or broadcast services;

[0140] The type of the changed control information of the set of one or more multicast services and / or broadcast services;

[0141] Read the resource information of the changed control information of the set of one or more multicast services and / or broadcast services.

[0142] Optionally, when the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[0143] The configuration information of the multicast service and / or broadcast service set changes;

[0144] The transmission mode of the multicast service and / or broadcast service set changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0145] The transmission mode of the multicast service and / or broadcast service set changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0146] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0147] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0148] The multicast or broadcast service whose control information of the multicast service and / or broadcast service set changes;

[0149] A group with a new multicast service and / or broadcast service is added;

[0150] A group of existing multicast services and / or broadcast services is deleted;

[0151] A group of existing multicast services and / or broadcast services is updated;

[0152] The HARQ feedback of the multicast service and / or broadcast service set is turned off or on;

[0153] The CSI feedback of the multicast service and / or broadcast service set is turned on or off.

[0154] Optionally, the second DCI is used to indicate at least one of the following:

[0155] The configuration information of the multicast service and / or broadcast service set changes;

[0156] The transmission mode of the multicast service and / or broadcast service set changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0157] The transmission mode of the multicast service and / or broadcast service set changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0158] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0159] The transmission mode of the multicast service and / or broadcast service set changes from point-to-point transmission to point-to-multipoint transmission;

[0160] A multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[0161] A group that adds a new multicast service and / or broadcast service;

[0162] A group that deletes an existing multicast service and / or broadcast service;

[0163] A group that updates an existing multicast service and / or broadcast service;

[0164] Close or open the HARQ feedback of the multicast service and / or broadcast service set;

[0165] Open or close the CSI feedback of the multicast service and / or broadcast service set;

[0166] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[0167] Optionally, after receiving the first DCI scrambled with the first RNTI sent by the receiving network side device, it further includes:

[0168] When the first DCI includes information indicating a change in the control information of the multicast service and / or broadcast service, and / or:

[0169] In the case of including information indicating that the control information resource of the multicast service and / or broadcast service carries change information, receive the change information of the control information of the multicast service and / or broadcast service.

[0170] The present invention also provides an information configuration method applied to a network side device, including:

[0171] Configure a set of control information for m multicast services and / or broadcast services;

[0172] In the cell, multicast area and / or broadcast area where the m multicast services and / or broadcast services are located, there are n multicast services and / or broadcast services;

[0173] A total of k sets of control information for the n multicast services and / or broadcast services are configured;

[0174] m, n, and k are natural numbers greater than or equal to 1, m is less than or equal to n, and k is less than or equal to n.

[0175] Optionally, the method further includes:

[0176] At least one of a repetition period, a change period, and a start offset is configured for sending control information for k sets of multicast services and / or broadcast services respectively;

[0177] At least one of the repetition period, the change period, and the start offset of the control information for the k sets of multicast services and / or broadcast services is the same or different.

[0178] Optionally, the method further includes:

[0179] Within the repetition period of the control information for the multicast service and / or broadcast service, n pieces of control information for the multicast service and / or broadcast service are sent to the terminal every t time domain units, where n and t are positive integers.

[0180] Optionally, before sending n pieces of control information for the multicast service and / or broadcast service to the terminal every t time domain units within the repetition period of the control information for the multicast service and / or broadcast service, it further includes:

[0181] Sending a first piece of information to the terminal, where the first piece of information is used to indicate a first transmission time, and the first transmission time is the transmission time of the n pieces of control information for the multicast service and / or broadcast service within the corresponding time domain unit.

[0182] Optionally, the first piece of information includes at least one of the following pieces of information:

[0183] Information used to indicate the start moment of the first transmission time;

[0184] Information used to indicate the duration of the first transmission time;

[0185] Information used to indicate a first offset, where the first offset is the offset between the first transmission time and the position of the RMSI of the SSB.

[0186] The present invention further provides an information receiving method, which is applied to a terminal and includes:

[0187] Determining a monitoring opportunity for a physical downlink control channel PDCCH of one or more multicast messages, and receiving multicast information at the monitoring opportunity for the physical downlink control channel PDCCH of the multicast message;

[0188] Among them, the opportunity for one multicast message is the monitoring opportunity for the PDCCH of a group of multicast messages;

[0189] Among them, the monitoring opportunity for the PDCCH of one multicast message includes at least one time slot;

[0190] Among them, each time slot included in the monitoring opportunity for the PDCCH of one multicast message includes at least one time symbol;

[0191] Among them, the multicast information includes at least one of the following:

[0192] DCI for network scheduling multicast service;

[0193] DCI for the configuration information of network scheduling multicast service;

[0194] DCI for the information of the control channel of the multicast service;

[0195] DCI for the information of the control channel of network scheduling multicast service;

[0196] DCI for the scheduling information of the information of the control channel of the multicast service;

[0197] DCI for the update information of the control channel of network scheduling multicast service;

[0198] DCI for the update information of the control channel of the multicast service;

[0199] DCI for the scheduling information of the update information of the control channel of the multicast service.

[0200] Optionally, the monitoring occasion of the physical downlink control channel PDCCH for determining one or more multicast messages includes:

[0201] Determine the monitoring occasion of the PDCCH of the multicast message according to the search space of the multicast message or the set of search spaces of the multicast message;

[0202] Determine the search space of the multicast message by at least one of the following methods:

[0203] The UE reads the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message in the PDCCH common configuration configured by the network through the RRC message; among them, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[0204] The UE reads the search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[0205] If the UE does not find the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message in the RRC message, the association relationship between the PDCCH monitoring occasion of the Nth type of PDCCH common search space set and the SSB block index is the same as the association relationship of the PDCCH monitoring occasion of the PDCCH common search space of type 0;

[0206] Find out the CCE aggregation level in the common search space set of the Nth type of PDCCH and the number of PDCCH candidates for each CCE aggregation level by looking up a table;

[0207] Among them, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space identified as the common type, includes at least one of the following information:

[0208] Search space label;

[0209] The first indication information is used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for a multicast message;

[0210] The second indication information is used to indicate the monitoring period and time offset of a PDCCH monitoring occasion for a multicast message;

[0211] The third indication information is used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for a multicast message;

[0212] The fourth indication information indicates the monitoring time slots and / or monitoring time symbols of a PDCCH monitoring occasion for a multicast message in the form of a bitmap;

[0213] The fifth indication information indicates the monitoring time symbols in a time slot of a PDCCH monitoring occasion for a multicast message in the form of a bitmap;

[0214] The sixth indication information is used to indicate the start symbol and / or duration of a time slot of a PDCCH monitoring occasion for a multicast message;

[0215] The seventh indication information is used to indicate the index of the control resource set associated with this search space.

[0216] Optionally, the PDCCH monitoring occasions of one or more multicast messages form a multicast message occasion.

[0217] Optionally, the method further includes:

[0218] Determine the multicast scheduling radio frame (MF), where MF is a system frame that contains the starting point of one or more MOs or MOs.

[0219] Optionally, the method includes:

[0220] Select one or more beams for receiving multicast scheduling information.

[0221] Optionally, the timing of a multicast message is the PDCCH monitoring timing of Y multicast messages, where Y is determined according to the actual number of SSBs sent by the cell.

[0222] Optionally, the timing of a multicast message is the PDCCH monitoring timing of a group of multicast messages, including:

[0223] The Z-th PDCCH monitoring timing in the timing of the multicast message corresponds to the Z-th sent SSB, where Z is a positive integer.

[0224] The present invention provides an information sending method, which is applied to a network side device and includes:

[0225] Sending multicast information on the monitoring timing of the physical downlink control channel PDCCH of one or more multicast messages;

[0226] Wherein, the monitoring timing of the PDCCH of a multicast message includes at least one time slot;

[0227] Each time slot included in the monitoring timing of the PDCCH of a multicast message includes at least one time symbol;

[0228] Wherein, the multicast information includes at least one of the following:

[0229] DCI for the network to schedule multicast services;

[0230] DCI for the configuration information of the network to schedule multicast services;

[0231] DCI for the information of the control channel of the multicast service;

[0232] DCI for the information of the control channel of the network to schedule multicast services;

[0233] DCI for the scheduling information of the control channel of the multicast service;

[0234] DCI for the update information of the control channel of the network to schedule multicast services;

[0235] DCI for the update information of the control channel of the multicast service;

[0236] DCI for the scheduling information of the update information of the control channel of the multicast service.

[0237] Optionally, the sending of the multicast information on the monitoring timing of the physical downlink control channel PDCCH of one or more multicast messages includes:

[0238] Associating the monitoring timing of the PDCCH of the multicast message with the corresponding search space of the multicast message or the set of search spaces of the multicast message;

[0239] Configure the search space for multicast messages by at least one of the following methods:

[0240] Information on the common search space set of the Nth type of PDCCH for the search space configuration of multicast messages in the PDCCH common configuration configured by the radio resource control (RRC) message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell for cyclic redundancy check code (CRC);

[0241] The search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[0242] Wherein, the information on the common search space set of the Nth type of PDCCH, and / or the information on the search space identified as the common type, includes at least one of the following information:

[0243] Search space label;

[0244] The first indication information, used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for multicast messages;

[0245] The second indication information, used to indicate the monitoring period and time offset of a PDCCH monitoring occasion for multicast messages;

[0246] The third indication information, used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for multicast messages;

[0247] The fourth indication information, indicating the monitoring time slots and / or monitoring time symbols of a PDCCH monitoring occasion for multicast messages in the form of a bitmap;

[0248] The fifth indication information, indicating the monitoring time symbols in a time slot of a PDCCH monitoring occasion for multicast messages in the form of a bitmap;

[0249] The sixth indication information, used to indicate the start symbol and / or duration of a time slot of a PDCCH monitoring occasion for multicast messages;

[0250] The seventh indication information, used to indicate the index of the control resource set associated with this search space.

[0251] Optionally, the monitoring occasions of the PDCCHs of one or more multicast messages form a multicast message occasion.

[0252] Optionally, it further includes:

[0253] Determine the multicast scheduling radio frame, where MF is a system frame that contains the starting point of one or more MOs or MOs.

[0254] Optionally, it includes:

[0255] Select one or more beams for transmitting multicast scheduling information.

[0256] Optionally, the timing of a multicast message is the monitoring timing of the PDCCH of Y multicast messages, where Y is determined according to the actual number of SSBs sent in the cell.

[0257] Optionally, the timing of a multicast message is the monitoring timing of the PDCCH of a group of multicast messages, including:

[0258] The Z-th PDCCH monitoring timing in the timing of the multicast message corresponds to the Z-th sent SSB, where Z is a positive integer.

[0259] The present invention provides an information sending method, which is applied to a network-side device and includes:

[0260] During the repetition period of the control information of the multicast service and / or the broadcast service, send n pieces of control information of the multicast service and / or the broadcast service to the terminal every t time domain units, where n and t are positive integers.

[0261] Optionally, before sending n pieces of control information of the multicast service and / or the broadcast service to the terminal every t time domain units during the repetition period of the control information of the multicast service and / or the broadcast service, it further includes:

[0262] Send first information to the terminal, where the first information is used to indicate the first sending time, and the first sending time is the sending time of the n pieces of control information of the multicast service and / or the broadcast service in the corresponding time domain unit.

[0263] Optionally, the first information includes at least one of the following information:

[0264] Information for indicating the starting moment of the first sending time;

[0265] Information for indicating the duration of the first sending time;

[0266] Information for indicating the first offset, where the first offset is the offset between the first sending time and the position of the RMSI of the SSB.

[0267] The present invention also provides an information receiving method, which is applied to a terminal and includes:

[0268] Receive n pieces of control information for multicast services and / or broadcast services sent by a receiving network-side device every t time domain units within a repetition period of the control information for multicast services and / or broadcast services, where n and t are positive integers.

[0269] Optionally, the n pieces of control information for multicast services and / or broadcast services sent by the receiving network-side device every t time domain units within a repetition period of the control information for multicast services and / or broadcast services include:

[0270] Obtain the time domain units corresponding to the control information for multicast services and / or broadcast services within the repetition period;

[0271] Monitor the corresponding control information for multicast services and / or broadcast services in the time domain units.

[0272] Optionally, the time domain unit is calculated according to the following formula:

[0273] SFN mod sc-mcch-RepetitionPeriod = sc-mcch-Offset +

[0274] (sc-mcch-RepetitionPeriod) divided by

[0275] SFN is the sequence number of the time domain unit corresponding to the first piece of control information for multicast services and / or broadcast services, sc-mcch-RepetitionPeriod is the size of the repetition period, sc-mcch-Offset is the offset of the starting time domain unit of the first repetition period, M is the total number of pieces of control information for multicast services and / or broadcast services sent within the repetition period, multicast_ID is the sequence number of the multicast service and / or broadcast service, and the multicast_ID is determined according to the sending order of the control information for the multicast service and / or broadcast service within the repetition period.

[0276] Optionally, the n pieces of control information for multicast services and / or broadcast services sent by the receiving network-side device every t time domain units within a repetition period of the control information for multicast services and / or broadcast services include:

[0277] Receive the first information sent by the network-side device, where the first information is used to indicate a second sending time, and the second sending time is the sending time of the n pieces of control information for multicast services and / or broadcast services within the corresponding time domain units;

[0278] Receive the n pieces of control information for multicast services and / or broadcast services at the second sending time.

[0279] Optionally, the first information includes at least one of the following information:

[0280] Information for indicating the starting moment of the second transmission time;

[0281] Information for indicating the duration of the second transmission time;

[0282] Information for indicating a first offset, where the first offset is the offset between the second transmission time and the position of the RMSI of the SSB.

[0283] The present invention further provides a resource configuration method, which is applied to a network-side device and includes:

[0284] Sending configuration information to a terminal, where the configuration information is used to indicate first symbol information and / or second symbol information in a time slot, the first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information;

[0285] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[0286] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[0287] Optionally, the configuration information is further used to indicate that a reference signal is inserted every y symbols in the time slot; and / or, the configuration information is further used to indicate that a reference signal is inserted for every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[0288] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[0289] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[0290] Optionally, information about the reference signal needs to be exchanged between different network nodes;

[0291] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[0292] The unicast information includes at least one of a reference signal corresponding to the unicast, control signaling, and data;

[0293] As described above, the multicast information includes at least one of a reference signal corresponding to the multicast, control signaling, and data;

[0294] As described above, the broadcast information includes at least one of a reference signal corresponding to the broadcast, control signaling, and data;

[0295] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[0296] The present invention also provides a resource configuration method applied to a terminal, including:

[0297] Receiving configuration information sent by a network side device, where the configuration information is used to indicate first symbol information and / or second symbol information in a time slot, the first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information.

[0298] Optionally, the configuration information is further used to indicate that a column of reference signals is inserted every y symbols in the time slot; and / or, the configuration information is further used to indicate that one reference signal is inserted every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[0299] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[0300] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[0301] Optionally, information about the reference signal needs to be exchanged between different network nodes;

[0302] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[0303] As described above, the unicast information includes at least one of a reference signal corresponding to the unicast, control signaling, and data;

[0304] As described above, the multicast information includes at least one of a reference signal corresponding to the multicast, control signaling, and data;

[0305] As described above, the broadcast information includes at least one of a reference signal corresponding to the broadcast, control signaling, and data;

[0306] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[0307] The present invention further provides an information measurement method, which is applied to a terminal and includes:

[0308] Receiving resource configuration information sent by a network-side device, where the resource configuration information is resource configuration information for multicast services and / or broadcast services of an adjacent cell;

[0309] Measuring or not measuring resources corresponding to the resource configuration information.

[0310] Optionally, the measuring or not measuring resources corresponding to the resource configuration information includes:

[0311] If the terminal only has unicast services, then do not measure resources corresponding to the resource configuration information;

[0312] If the terminal only has multicast services and / or broadcast services, then measure resources corresponding to the resource configuration information;

[0313] If the terminal has both unicast services and multicast services and / or broadcast services, then measure resources corresponding to the resource configuration information.

[0314] The present invention provides a network-side device, including:

[0315] A first DCI sending module, configured to send a first DCI scrambled with a first RNTI to a terminal, where the first DCI is used to indicate whether control information for a multicast service and / or a broadcast service is updated or updated-related information; or:

[0316] A second DCI sending module, configured to send a second DCI scrambled with a second RNTI to a terminal, where the second DCI is used to indicate whether control information for a set of multicast services and / or broadcast services is updated or updated-related information;

[0317] Wherein, the control information includes configuration information for multicast services and / or broadcast services.

[0318] Optionally, the configuration information for a multicast service and / or a broadcast service includes at least one of the following items:

[0319] A list of TMGIs;

[0320] The Session ID corresponding to the TMGI in the list of TMGIs;

[0321] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[0322] The BWP corresponding to the TMGI in the list of TMGIs;

[0323] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[0324] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[0325] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[0326] The uplink resource configuration of HARQ feedback corresponding to the TMGI in the list of TMGIs;

[0327] The uplink resource configuration of CSI reporting corresponding to the TMGI in the list of TMGIs.

[0328] Optionally, the first DCI is used to indicate at least one of the following:

[0329] The control information of the multicast service and / or the broadcast service has changed;

[0330] Whether the control information of the multicast service and / or the broadcast service has changed;

[0331] The changed control information of the multicast service and / or the broadcast service;

[0332] The type of the changed control information of the multicast service and / or the broadcast service;

[0333] Read the resource information of the changed control information of the multicast service and / or the broadcast service.

[0334] Optionally, when the first DCI is used to indicate that the control information of the multicast service and / or the broadcast service has changed, the first DCI is further used to indicate at least one of the following:

[0335] The configuration information of the multicast service and / or the broadcast service has changed;

[0336] The transmission mode of the multicast service and / or the broadcast service changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[0337] The transmission mode of the multicast service and / or the broadcast service changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[0338] The transmission mode of the multicast service and / or the broadcast service changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[0339] The transmission mode of the multicast service and / or broadcast service changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[0340] A multicast or broadcast service in which the control information of the multicast service and / or broadcast service changes;

[0341] A group that adds a new multicast service and / or broadcast service;

[0342] A group that deletes an existing multicast service and / or broadcast service;

[0343] A group that updates an existing multicast service and / or broadcast service;

[0344] Close or enable the HARQ feedback of the multicast service and / or broadcast service;

[0345] Enable or disable the CSI feedback of the multicast service and / or broadcast service.

[0346] Optionally, the first DCI is used to indicate at least one of the following:

[0347] The configuration information of the multicast service and / or broadcast service changes;

[0348] The transmission mode of the multicast service and / or broadcast service changes from a single-cell point-to-multipoint transmission mode to a multi-cell point-to-multipoint transmission mode;

[0349] The transmission mode of the multicast service and / or broadcast service changes from a multi-cell point-to-multipoint transmission mode to a single-cell point-to-multipoint transmission mode;

[0350] The transmission mode of the multicast service and / or broadcast service changes from a point-to-multipoint transmission mode to a point-to-point transmission mode;

[0351] The transmission mode of the multicast service and / or broadcast service changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[0352] A multicast or broadcast service in which the control information of the multicast service and / or broadcast service changes;

[0353] A group that adds a new multicast service and / or broadcast service;

[0354] A group that deletes an existing multicast service and / or broadcast service;

[0355] A group that updates an existing multicast service and / or broadcast service;

[0356] Close or enable the HARQ feedback of the multicast service and / or broadcast service;

[0357] Enable or disable CSI feedback for the multicast service and / or broadcast service.

[0358] Optionally, the set of one or more multicast services and / or broadcast services is a partial or complete set of multicast services and / or broadcast services within a cell; and / or,

[0359] The set of one or more multicast services and / or broadcast services is a partial or complete set of multicast services and / or broadcast services within a multicast area and / or broadcast area.

[0360] Optionally, the second DCI is used to indicate at least one of the following:

[0361] The control information of the set of one or more multicast services and / or broadcast services has changed;

[0362] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[0363] The control information of the set of one or more multicast services and / or broadcast services that has changed;

[0364] The type of the control information of the set of one or more multicast services and / or broadcast services that has changed;

[0365] Read the resource information of the control information of the set of one or more multicast services and / or broadcast services that has changed.

[0366] Optionally, when the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[0367] The configuration information of the set of multicast services and / or broadcast services has changed;

[0368] The transmission mode of the set of multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0369] The transmission mode of the set of multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0370] The transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0371] The transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0372] The multicast or broadcast service for which the control information of the multicast service and / or broadcast service set has changed;

[0373] The group to which a new multicast service and / or broadcast service has been added;

[0374] The group from which an existing multicast service and / or broadcast service has been deleted;

[0375] The group of existing multicast services and / or broadcast services that has been updated;

[0376] Turn off or on the HARQ feedback for the multicast service and / or broadcast service set;

[0377] Turn on or off the CSI feedback for the multicast service and / or broadcast service set.

[0378] Optionally, the second DCI is used to indicate at least one of the following:

[0379] The configuration information of the multicast service and / or broadcast service set has changed;

[0380] The transmission mode of the multicast service and / or broadcast service set changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0381] The transmission mode of the multicast service and / or broadcast service set changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0382] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0383] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0384] The multicast or broadcast service for which the control information of the multicast service and / or broadcast service set has changed;

[0385] The group to which a new multicast service and / or broadcast service has been added;

[0386] The group from which an existing multicast service and / or broadcast service has been deleted;

[0387] The group of existing multicast services and / or broadcast services that has been updated;

[0388] Turn off or on the HARQ feedback for the multicast service and / or broadcast service set;

[0389] Turn on or off the CSI feedback for the multicast service and / or broadcast service set;

[0390] Identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[0391] Optionally, the network-side device further includes:

[0392] A change information sending module, configured to send change information of the control information of the multicast service and / or broadcast service when the first DCI includes information indicating a change in the control information of the multicast service and / or broadcast service, and / or:

[0393] In the case of including information indicating that the control information resource carrying the multicast service and / or broadcast service carries change information, send the change information of the control information of the multicast service and / or broadcast service.

[0394] Optionally, the network-side device further includes:

[0395] A first broadcast module, configured to broadcast each piece of control information of a plurality of multicast services and / or broadcast services; or,

[0396] A second broadcast module, configured to broadcast the control information of the first multicast service and / or broadcast service among the control information of a plurality of multicast services and / or broadcast services, and the control information of other multicast services and / or broadcast services among the control information of the plurality of multicast services and / or broadcast services is the same as the control information of the first multicast service and / or broadcast service;

[0397] Wherein, the control information includes at least one of a repetition period, an offset, a start subframe, and a modification period.

[0398] The present invention provides a terminal, including:

[0399] A first DCI receiving module, configured to receive a first DCI scrambled with a first RNTI sent by a network-side device, where the first DCI is used to indicate whether the control information of a multicast service and / or broadcast service is updated or update-related information; or:

[0400] A second DCI receiving module, configured to receive a second DCI scrambled with a second RNTI sent by a network-side device, where the second DCI is used to indicate whether the control information of a multicast service and / or broadcast service set is updated or update-related information;

[0401] Wherein, the control information includes configuration information of the multicast service and / or broadcast service.

[0402] Optionally, the configuration information of the one multicast service and / or broadcast service includes at least one of the following:

[0403] A list of TMGIs;

[0404] The Session ID corresponding to the TMGI in the list of TMGIs;

[0405] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[0406] The BWP corresponding to the TMGI in the list of TMGIs;

[0407] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[0408] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[0409] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[0410] The uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[0411] The uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[0412] Optionally, the first DCI is used to indicate at least one of the following:

[0413] The control information for multicast services and / or broadcast services has changed;

[0414] Whether the control information for multicast services and / or broadcast services has changed;

[0415] The changed control information for multicast services and / or broadcast services;

[0416] The type of the changed control information for multicast services and / or broadcast services;

[0417] The resource information for reading the changed control information for multicast services and / or broadcast services.

[0418] Optionally, in the case where the first DCI is used to indicate that the control information for multicast services and / or broadcast services has changed, the first DCI is further used to indicate at least one of the following:

[0419] The configuration information for multicast services and / or broadcast services has changed;

[0420] The transmission mode for multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0421] The transmission mode for multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0422] The transmission mode of the multicast service and / or broadcast service changes from a point-to-multipoint transmission mode to a point-to-point transmission mode;

[0423] The transmission mode of the multicast service and / or broadcast service changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[0424] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service changes;

[0425] A new group of multicast services and / or broadcast services is added;

[0426] An existing group of multicast services and / or broadcast services is deleted;

[0427] An existing group of multicast services and / or broadcast services is updated;

[0428] The HARQ feedback of the multicast service and / or broadcast service is turned off or on;

[0429] The CSI feedback of the multicast service and / or broadcast service is turned on or off.

[0430] Optionally, the first DCI is used to indicate at least one of the following:

[0431] The configuration information of the multicast service and / or broadcast service changes;

[0432] The transmission mode of the multicast service and / or broadcast service changes from a single-cell point-to-multipoint transmission mode to a multi-cell point-to-multipoint transmission mode;

[0433] The transmission mode of the multicast service and / or broadcast service changes from a multi-cell point-to-multipoint transmission mode to a single-cell point-to-multipoint transmission mode;

[0434] The transmission mode of the multicast service and / or broadcast service changes from a point-to-multipoint transmission mode to a point-to-point transmission mode;

[0435] The transmission mode of the multicast service and / or broadcast service changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[0436] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service changes;

[0437] A new group of multicast services and / or broadcast services is added;

[0438] An existing group of multicast services and / or broadcast services is deleted;

[0439] Updated the group of existing multicast services and / or broadcast services;

[0440] Enabled or disabled HARQ feedback for the multicast service and / or broadcast service;

[0441] Enabled or disabled CSI feedback for the multicast service and / or broadcast service.

[0442] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[0443] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or broadcast area.

[0444] Optionally, the second DCI is used to indicate at least one of the following:

[0445] The control information of the set of one or more multicast services and / or broadcast services has changed;

[0446] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[0447] The changed control information of the set of one or more multicast services and / or broadcast services;

[0448] The type of the changed control information of the set of one or more multicast services and / or broadcast services;

[0449] Read the resource information of the changed control information of the set of one or more multicast services and / or broadcast services.

[0450] Optionally, when the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[0451] The configuration information of the set of multicast services and / or broadcast services has changed;

[0452] The transmission mode of the set of multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0453] The transmission mode of the set of multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0454] The transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0455] The transmission mode of the multicast service and / or broadcast service set changes from point-to-point transmission to point-to-multipoint transmission;

[0456] The multicast or broadcast service whose control information of the multicast service and / or broadcast service set changes;

[0457] A group with new multicast services and / or broadcast services added;

[0458] A group of existing multicast services and / or broadcast services deleted;

[0459] A group of existing multicast services and / or broadcast services updated;

[0460] Turn on or off the HARQ feedback of the multicast service and / or broadcast service set;

[0461] Turn on or off the CSI feedback of the multicast service and / or broadcast service set.

[0462] Optionally, the second DCI is used to indicate at least one of the following:

[0463] The configuration information of the multicast service and / or broadcast service set changes;

[0464] The transmission mode of the multicast service and / or broadcast service set changes from single-cell point-to-multipoint transmission to multi-cell point-to-multipoint transmission;

[0465] The transmission mode of the multicast service and / or broadcast service set changes from multi-cell point-to-multipoint transmission to single-cell point-to-multipoint transmission;

[0466] The transmission mode of the multicast service and / or broadcast service set changes from point-to-multipoint transmission to point-to-point transmission;

[0467] The transmission mode of the multicast service and / or broadcast service set changes from point-to-point transmission to point-to-multipoint transmission;

[0468] The multicast or broadcast service whose control information of the multicast service and / or broadcast service set changes;

[0469] A group with new multicast services and / or broadcast services added;

[0470] A group of existing multicast services and / or broadcast services deleted;

[0471] A group of existing multicast services and / or broadcast services updated;

[0472] Turn on or off the HARQ feedback for the multicast service and / or broadcast service set;

[0473] Turn on or off the CSI feedback for the multicast service and / or broadcast service set;

[0474] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[0475] Optionally, the terminal further includes:

[0476] A change information receiving module, configured to, when the first DCI includes information indicating a change in the control information for the multicast service and / or broadcast service, and / or:

[0477] In the case of including information indicating that the control information resource for the multicast service and / or broadcast service carries change information, receive the change information of the control information for the multicast service and / or broadcast service.

[0478] The present invention provides a network-side device, including:

[0479] A control information configuration module, configured to configure a set of control information for the multicast service and / or broadcast service for m multicast services and / or broadcast services;

[0480] In the cell, multicast area and / or broadcast area where the m multicast services and / or broadcast services are located, there are n multicast services and / or broadcast services;

[0481] A total of k sets of control information for the multicast service and / or broadcast service are configured for the n multicast services and / or broadcast services;

[0482] m, n, and k are natural numbers greater than or equal to 1, m is less than or equal to n, and k is less than or equal to n.

[0483] Optionally, the network-side device further includes:

[0484] A configuration module, configured to configure at least one of a repetition period, a change period, and a start offset for the transmission of k sets of control information for the multicast service and / or broadcast service;

[0485] At least one of the repetition period, the change period, and the start offset of the k sets of control information for the multicast service and / or broadcast service is the same or different.

[0486] Optionally, the network-side device further includes:

[0487] A control information sending module, configured to send the control information for n multicast services and / or broadcast services to the terminal every t time domain units within the repetition period of the control information for the multicast service and / or broadcast service, where n and t are positive integers.

[0488] Optionally, the network-side device further includes:

[0489] A first information sending module, configured to send first information to a terminal, where the first information is used to indicate a first sending time, and the first sending time is a sending time of control information of the n multicast services and / or broadcast services within a corresponding time domain unit.

[0490] Optionally, the first information includes at least one of the following information:

[0491] Information for indicating a start moment of the first sending time;

[0492] Information for indicating a duration of the first sending time;

[0493] Information for indicating a first offset, where the first offset is an offset between the first sending time and a position of an RMSI of an SSB.

[0494] The present invention further provides a terminal, including:

[0495] A reception opportunity determination module, configured to determine a monitoring opportunity of a physical downlink control channel (PDCCH) of one or more multicast messages,

[0496] An information reception module, configured to receive multicast information at the monitoring opportunity of the PDCCH of the multicast message;

[0497] wherein, an opportunity of one multicast message is a monitoring opportunity of the PDCCH of a group of multicast messages;

[0498] wherein, the monitoring opportunity of the PDCCH of one multicast message includes at least one time slot;

[0499] wherein, each time slot included in the monitoring opportunity of the PDCCH of one multicast message includes at least one time symbol;

[0500] wherein, the multicast information includes at least one of the following:

[0501] DCI for the network to schedule a multicast service;

[0502] DCI for the network to schedule configuration information of a multicast service;

[0503] DCI for information of a control channel of a multicast service;

[0504] DCI for information of a control channel of the network to schedule a multicast service;

[0505] DCI for scheduling information of information of a control channel of a multicast service;

[0506] DCI for update information of the control channel for network-scheduled multicast services

[0507] DCI for update information of the control channel for multicast services

[0508] DCI for scheduling information of update information of the control channel for multicast services

[0509] Optionally, the reception timing determination module is used to determine the monitoring timing of the PDCCH of the multicast message according to the search space of the multicast message or the set of search spaces of the multicast message

[0510] The search space of the multicast message is determined by at least one of the following methods

[0511] The UE reads the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message from the PDCCH common configuration configured by the network through the RRC message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell

[0512] The UE reads the search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell

[0513] If the UE does not find the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message in the RRC message, the association relationship between the PDCCH monitoring timing of the common search space set of the Nth type of PDCCH and the SSB block index is the same as the association relationship of the PDCCH monitoring timing of the common search space for type 0

[0514] Find out the CCE aggregation level in the common search space set of the Nth type of PDCCH and the number of PDCCH candidates for each CCE aggregation level by looking up the table

[0515] Wherein, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space identified as the common type, includes at least one of the following information

[0516] Search space label

[0517] The first indication information is used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring timing for a multicast message

[0518] The second indication information is used to indicate the monitoring period and time offset of a PDCCH monitoring timing for a multicast message

[0519] The third indication information, which is used to indicate the starting symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for a multicast message;

[0520] The fourth indication information, which indicates, in the form of a bitmap, the monitoring time slot and / or monitoring time symbol of a PDCCH monitoring occasion for a multicast message;

[0521] The fifth indication information, which indicates, in the form of a bitmap, the monitoring time symbol in a time slot of a PDCCH monitoring occasion for a multicast message;

[0522] The sixth indication information, which is used to indicate the starting symbol and / or duration of a time slot in a PDCCH monitoring occasion for a multicast message;

[0523] The seventh indication information, which is used to indicate the index of the control resource set associated with this search space.

[0524] Optionally, the monitoring occasions of the PDCCHs of one or more multicast messages form a multicast message occasion.

[0525] Optionally, it further includes:

[0526] A radio frame determination module, which is used to determine a multicast scheduling radio frame, where MF is a system frame that contains one or more MOs or the starting points of MOs.

[0527] Optionally, it further includes:

[0528] A beam selection module, which is used to select one or more beams for receiving multicast scheduling information.

[0529] Optionally, a multicast message occasion is the monitoring occasions of the PDCCHs of Y multicast messages, where Y is determined according to the actual number of SSBs sent in the cell.

[0530] Optionally, a multicast message occasion is a set of monitoring occasions of the PDCCHs of a group of multicast messages,

[0531] and the Zth PDCCH monitoring occasion in the multicast message occasion corresponds to the Zth sent SSB, where Z is a positive integer.

[0532] The present invention provides a network-side device, including:

[0533] A multicast information sending module, which is used to send multicast information on the monitoring occasions of the physical downlink control channels (PDCCHs) of one or more multicast messages;

[0534] wherein, the monitoring occasion of the PDCCH of a multicast message includes at least one time slot;

[0535] Among them, each time slot included in the monitoring opportunity of the PDCCH of a multicast message includes at least one time symbol;

[0536] Among them, the multicast information includes at least one of the following:

[0537] DCI for the network to schedule multicast services;

[0538] DCI for the network to schedule the configuration information of multicast services;

[0539] DCI for the information of the control channel of multicast services;

[0540] DCI for the information of the control channel of the network to schedule multicast services;

[0541] DCI for the scheduling information of the control channel of multicast services;

[0542] DCI for the update information of the control channel of the network to schedule multicast services;

[0543] DCI for the update information of the control channel of multicast services;

[0544] DCI for the scheduling information of the update information of the control channel of multicast services.

[0545] Optionally, the multicast information sending module includes:

[0546] An association unit, configured to associate the monitoring opportunity of the PDCCH of the multicast message with the corresponding search space of the multicast message or the set of search spaces of the multicast message;

[0547] Configure the search space of the multicast message through at least one of the following methods:

[0548] Information on the common search space set of the Nth type of PDCCH for the search space configuration of the multicast message in the PDCCH common configuration configured by the radio resource control (RRC) message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[0549] The search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[0550] Among them, the information on the common search space set of the Nth type of PDCCH, and / or the information on the search space identified as the common type, includes at least one of the following information:

[0551] Search space label;

[0552] The first indication information is used to indicate the first time symbol in the control resource set within a slot of a PDCCH monitoring occasion for a multicast message;

[0553] The second indication information is used to indicate the monitoring period and time offset of a PDCCH monitoring occasion for a multicast message;

[0554] The third indication information is used to indicate the start symbol and / or duration within a monitoring period of a PDCCH monitoring occasion for a multicast message;

[0555] The fourth indication information indicates the monitoring time slots and / or monitoring time symbols of a PDCCH monitoring occasion for a multicast message in the form of a bitmap;

[0556] The fifth indication information indicates the monitoring time symbols within a time slot of a PDCCH monitoring occasion for a multicast message in the form of a bitmap;

[0557] The sixth indication information is used to indicate the start symbol and / or duration of a time slot of a PDCCH monitoring occasion for a multicast message;

[0558] The seventh indication information is used to indicate the index of the control resource set associated with this search space.

[0559] Optionally, the monitoring occasions of one or more PDCCHs for multicast messages form a multicast message occasion.

[0560] Optionally, it further includes:

[0561] The multicast scheduling radio frame determination module is used to determine the multicast scheduling radio frame, where MF is a system frame that includes one or more MOs or the starting point of an MO.

[0562] Optionally, it further includes:

[0563] The beam selection module is used to select one or more beams for transmitting multicast scheduling information.

[0564] Optionally, a multicast message occasion is the monitoring occasions of Y PDCCHs for multicast messages, where Y is determined according to the actual number of SSBs sent in the cell.

[0565] Optionally, a multicast message occasion is a set of monitoring occasions of PDCCHs for multicast messages,

[0566] The Z-th PDCCH monitoring occasion in the multicast message occasion corresponds to the Z-th sent SSB, where Z is a positive integer.

[0567] The present invention provides a network-side device, including:

[0568] A control information sending module, configured to send, to a terminal, n pieces of control information of multicast services and / or broadcast services every t time domain units within a repetition period of the control information of the multicast services and / or broadcast services, where n and t are positive integers.

[0569] Optionally, the network-side device further includes:

[0570] A first information sending module, configured to send first information to the terminal, where the first information is used to indicate a first sending time, and the first sending time is the sending time of the n pieces of control information of the multicast services and / or broadcast services within the corresponding time domain unit.

[0571] Optionally, the first information includes at least one of the following pieces of information:

[0572] Information used to indicate a starting moment of the first sending time;

[0573] Information used to indicate a duration of the first sending time;

[0574] Information used to indicate a first offset, where the first offset is an offset between the first sending time and the position of the RMSI of the SSB.

[0575] The present invention provides a terminal, including:

[0576] A control information receiving module, configured to receive n pieces of control information of multicast services and / or broadcast services sent by a network-side device every t time domain units within a repetition period of the control information of the multicast services and / or broadcast services, where n and t are positive integers.

[0577] Optionally, the control information receiving module is configured to obtain a time domain unit corresponding to the control information of the multicast services and / or broadcast services within the repetition period; and monitor the corresponding control information of the multicast services and / or broadcast services within the time domain unit.

[0578] Optionally, the time domain unit is calculated according to the following formula:

[0579] SFN mod sc-mcch-RepetitionPeriod = sc-mcch-Offset +

[0580] (sc-mcch-RepetitionPeriod) divided by

[0581] The SFN is the serial number of the time domain unit corresponding to the control information of the first multicast service and / or broadcast service. The sc-mcch-RepetitionPeriod is the size of the repetition period. The sc-mcch-Offset is the offset of the starting time domain unit of the first repetition period. M is the total number of control information of the multicast service and / or broadcast service sent within the repetition period. The multicast_ID is the serial number of the multicast service and / or broadcast service, and the multicast_ID is determined according to the sending order of the control information of the multicast service and / or broadcast service within the repetition period.

[0582] Optionally, the control information receiving module is configured to receive a first piece of information sent by the network side device, where the first piece of information is used to indicate a second sending time, and the second sending time is the sending time of the control information of the n multicast services and / or broadcast services within the corresponding time domain unit.

[0583] Receive the control information of the n multicast services and / or broadcast services at the second sending time.

[0584] Optionally, the first piece of information includes at least one of the following pieces of information:

[0585] Information used to indicate the starting moment of the second sending time;

[0586] Information used to indicate the duration of the second sending time;

[0587] Information used to indicate a first offset, where the first offset is the offset between the second sending time and the position of the RMSI of the SSB.

[0588] The present invention provides a network side device, including:

[0589] A configuration information sending module, configured to send configuration information to a terminal, where the configuration information is used to indicate first symbol information and / or second symbol information in a time slot. The first symbol is a symbol used to send unicast information, and the second symbol is a symbol used to send multicast information and / or broadcast information;

[0590] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[0591] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[0592] Optionally, the configuration information is further used to indicate that every y symbols in the time slot insert a column of reference signals; and / or, the configuration information is further used to indicate that one reference signal is inserted for every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[0593] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or is an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[0594] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or is a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[0595] Optionally, information about the reference signal needs to be interacted between different network nodes;

[0596] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[0597] The unicast information includes at least one of a reference signal corresponding to unicast, control signaling, and data;

[0598] The multicast information includes at least one of a reference signal corresponding to multicast, control signaling, and data;

[0599] The broadcast information includes at least one of a reference signal corresponding to broadcast, control signaling, and data;

[0600] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[0601] The present invention further provides a terminal, including:

[0602] A configuration information receiving module, configured to receive configuration information sent by a network-side device, where the configuration information is used to indicate first symbol information and / or second symbol information in a time slot, the first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information;

[0603] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[0604] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[0605] Optionally, the configuration information is further used to indicate that every y symbols in the time slot insert a column of reference signals; and / or, the configuration information is further used to indicate that one reference signal is inserted for every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[0606] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or is an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[0607] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or is a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[0608] Optionally, information about the reference signal needs to be interacted between different network nodes;

[0609] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[0610] The unicast information includes at least one of a reference signal corresponding to unicast, control signaling, and data;

[0611] The multicast information includes at least one of a reference signal corresponding to multicast, control signaling, and data;

[0612] The broadcast information includes at least one of a reference signal corresponding to broadcast, control signaling, and data;

[0613] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[0614] The present invention provides a terminal, including:

[0615] A resource configuration information receiving module, configured to receive resource configuration information sent by a network-side device, where the resource configuration information is resource configuration information for multicast services and / or broadcast services of an adjacent cell;

[0616] A measurement module, configured to measure or not measure resources corresponding to the resource configuration information.

[0617] Optionally, the measurement module is configured to not measure resources corresponding to the resource configuration information if the terminal only has unicast services;

[0618] If the terminal only has multicast services and / or broadcast services, then measure resources corresponding to the resource configuration information;

[0619] If the terminal has both unicast services and multicast services and / or broadcast services, measure the resources corresponding to the resource configuration information.

[0620] The present invention further provides a network-side device, including: a transceiver and a processor;

[0621] The transceiver is configured to send a first DCI scrambled with a first RNTI to the terminal, where the first DCI is used to indicate whether the control information of a multicast service and / or a broadcast service is updated or updated related information; or:

[0622] The transceiver is configured to send a second DCI scrambled with a second RNTI to the terminal, where the second DCI is used to indicate whether the control information of a set of multicast services and / or broadcast services is updated or updated related information;

[0623] Wherein, the control information includes configuration information of multicast services and / or broadcast services.

[0624] Optionally, the configuration information of the one multicast service and / or broadcast service includes at least one of the following items:

[0625] A list of TMGIs;

[0626] The Session ID corresponding to the TMGI in the list of TMGIs;

[0627] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[0628] The BWP corresponding to the TMGI in the list of TMGIs;

[0629] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[0630] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[0631] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[0632] The uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[0633] The uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[0634] Optionally, the first DCI is used to indicate at least one of the following items:

[0635] The control information of the multicast service and / or the broadcast service has changed;

[0636] Whether the control information of the multicast service and / or the broadcast service has changed;

[0637] The changed control information of the multicast service and / or the broadcast service;

[0638] The type of the changed control information of the multicast service and / or the broadcast service;

[0639] Read the resource information of the changed control information of the multicast service and / or the broadcast service.

[0640] Optionally, when the first DCI is used to indicate that the control information of the multicast service and / or the broadcast service has changed, the first DCI is further used to indicate at least one of the following items:

[0641] The configuration information of the multicast service and / or the broadcast service has changed;

[0642] The transmission mode of the multicast service and / or the broadcast service changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[0643] The transmission mode of the multicast service and / or the broadcast service changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[0644] The transmission mode of the multicast service and / or the broadcast service changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[0645] The transmission mode of the multicast service and / or the broadcast service changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[0646] The multicast or broadcast service for which the control information of the multicast service and / or the broadcast service has changed;

[0647] The group to which a new multicast service and / or broadcast service is added;

[0648] The group of the existing multicast service and / or broadcast service that is deleted;

[0649] The group of the existing multicast service and / or broadcast service that is updated;

[0650] Close or open the HARQ feedback of the multicast service and / or the broadcast service;

[0651] Open or close the CSI feedback of the multicast service and / or the broadcast service.

[0652] Optionally, the first DCI is used to indicate at least one of the following items:

[0653] The configuration information of the multicast service and / or the broadcast service has changed;

[0654] The transmission mode of the multicast service and / or the broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0655] The transmission mode of the multicast service and / or the broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0656] The transmission mode of the multicast service and / or the broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0657] The transmission mode of the multicast service and / or the broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0658] The multicast or broadcast service in which the control information of the multicast service and / or the broadcast service changes;

[0659] A new group of multicast services and / or broadcast services is added;

[0660] An existing group of multicast services and / or broadcast services is deleted;

[0661] An existing group of multicast services and / or broadcast services is updated;

[0662] The HARQ feedback of the multicast service and / or the broadcast service is closed or enabled;

[0663] The CSI feedback of the multicast service and / or the broadcast service is enabled or closed.

[0664] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[0665] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or a broadcast area.

[0666] Optionally, the second DCI is used to indicate at least one of the following:

[0667] The control information of the set of one or more multicast services and / or broadcast services has changed;

[0668] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[0669] The control information of the set of one or more multicast services and / or broadcast services that has changed;

[0670] The type of control information for the changed set of multicast services and / or broadcast services;

[0671] Read the resource information of the control information for the changed set of multicast services and / or broadcast services.

[0672] Optionally, when the second DCI is used to indicate that the control information for the set of multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[0673] The configuration information of the set of multicast services and / or broadcast services has changed;

[0674] The transmission mode of the set of multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0675] The transmission mode of the set of multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0676] The transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0677] The transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0678] The multicast or broadcast services for which the control information of the set of multicast services and / or broadcast services has changed;

[0679] The group to which new multicast services and / or broadcast services are added;

[0680] The group of existing multicast services and / or broadcast services that is deleted;

[0681] The group of existing multicast services and / or broadcast services that is updated;

[0682] Turn on or off the HARQ feedback for the set of multicast services and / or broadcast services;

[0683] Turn on or off the CSI feedback for the set of multicast services and / or broadcast services.

[0684] Optionally, the second DCI is used to indicate at least one of the following:

[0685] The configuration information of the set of multicast services and / or broadcast services has changed;

[0686] The transmission mode of the multicast service and / or broadcast service set changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0687] The transmission mode of the multicast service and / or broadcast service set changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0688] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0689] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0690] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[0691] A group with new multicast services and / or broadcast services added;

[0692] A group of existing multicast services and / or broadcast services deleted;

[0693] An existing group of multicast services and / or broadcast services updated;

[0694] Turn on or off the HARQ feedback of the multicast service and / or broadcast service set;

[0695] Turn on or off the CSI feedback of the multicast service and / or broadcast service set;

[0696] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[0697] Optionally, the transceiver is used when the first DCI includes information indicating a change in the control information of the multicast service and / or broadcast service, and / or:

[0698] In the case of including information indicating that the control information resource of the multicast service and / or broadcast service carries change information, send the change information of the control information of the multicast service and / or broadcast service.

[0699] Optionally, the transceiver is used to broadcast each piece of control information of multiple multicast services and / or broadcast services; or,

[0700] Control information of a first multicast service and / or broadcast service among control information of multiple multicast services and / or broadcast services, and control information of other multicast services and / or broadcast services among the control information of the multiple multicast services and / or broadcast services is the same as the control information of the first multicast service and / or broadcast service;

[0701] Wherein, the control information includes at least one of a repetition period, an offset, a start subframe, and a modification period.

[0702] The present invention further provides a terminal, including: a transceiver and a processor;

[0703] The transceiver is configured to receive a first DCI scrambled by a first RNTI sent by a network side device, where the first DCI is used to indicate whether control information of a multicast service and / or broadcast service is updated or updated related information; or:

[0704] The transceiver is configured to receive a second DCI scrambled by a second RNTI sent by a network side device, where the second DCI is used to indicate whether control information of a set of multicast services and / or broadcast services is updated or updated related information;

[0705] Wherein, the control information includes configuration information of the multicast service and / or broadcast service.

[0706] Optionally, the configuration information of the multicast service and / or broadcast service includes at least one of the following:

[0707] A list of TMGIs;

[0708] A Session ID corresponding to a TMGI in the list of TMGIs;

[0709] A G-RNTI corresponding to a TMGI in the list of TMGIs;

[0710] A BWP corresponding to a TMGI in the list of TMGIs;

[0711] A subcarrier spacing corresponding to a TMGI in the list of TMGIs;

[0712] A logical channel and / or logical channel group corresponding to a TMGI in the list of TMGIs;

[0713] A DRX configuration corresponding to a TMGI in the list of TMGIs;

[0714] An uplink resource configuration for HARQ feedback corresponding to a TMGI in the list of TMGIs;

[0715] An uplink resource configuration for CSI reporting corresponding to a TMGI in the list of TMGIs.

[0716] Optionally, the first DCI is used to indicate at least one of the following items:

[0717] The control information of the multicast service and / or the broadcast service has changed;

[0718] Whether the control information of the multicast service and / or the broadcast service has changed;

[0719] The changed control information of the multicast service and / or the broadcast service;

[0720] The type of the changed control information of the multicast service and / or the broadcast service;

[0721] Read the resource information of the changed control information of the multicast service and / or the broadcast service.

[0722] Optionally, when the first DCI is used to indicate that the control information of the multicast service and / or the broadcast service has changed, the first DCI is further used to indicate at least one of the following items:

[0723] The configuration information of the multicast service and / or the broadcast service has changed;

[0724] The transmission mode of the multicast service and / or the broadcast service changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[0725] The transmission mode of the multicast service and / or the broadcast service changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[0726] The transmission mode of the multicast service and / or the broadcast service changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[0727] The transmission mode of the multicast service and / or the broadcast service changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[0728] The multicast or broadcast service for which the control information of the multicast service and / or the broadcast service has changed;

[0729] A group to which a new multicast service and / or broadcast service is added;

[0730] A group of existing multicast services and / or broadcast services that has been deleted;

[0731] A group of existing multicast services and / or broadcast services that has been updated;

[0732] Close or enable the HARQ feedback of the multicast service and / or the broadcast service;

[0733] Enable or disable CSI feedback for the multicast service and / or broadcast service.

[0734] Optionally, the first DCI is used to indicate at least one of the following:

[0735] The configuration information of the multicast service and / or broadcast service has changed;

[0736] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[0737] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[0738] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[0739] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[0740] The multicast or broadcast service whose control information of the multicast service and / or broadcast service has changed;

[0741] A group with a new multicast service and / or broadcast service added;

[0742] A group of existing multicast services and / or broadcast services deleted;

[0743] A group of existing multicast services and / or broadcast services updated;

[0744] Enable or disable HARQ feedback for the multicast service and / or broadcast service;

[0745] Enable or disable CSI feedback for the multicast service and / or broadcast service.

[0746] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[0747] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or broadcast area.

[0748] Optionally, the second DCI is used to indicate at least one of the following:

[0749] The control information of the set of one or more multicast services and / or broadcast services has changed;

[0750] Whether the control information of the multicast service and / or broadcast service set has changed;

[0751] The control information of the changed multicast service and / or broadcast service set;

[0752] The type of the control information of the changed multicast service and / or broadcast service set;

[0753] Read the resource information of the control information of the changed multicast service and / or broadcast service set.

[0754] Optionally, when the second DCI is used to indicate that the control information of the multicast service and / or broadcast service set has changed, the second DCI is further used to indicate at least one of the following items:

[0755] The configuration information of the multicast service and / or broadcast service set has changed;

[0756] The transmission mode of the multicast service and / or broadcast service set changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[0757] The transmission mode of the multicast service and / or broadcast service set changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[0758] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[0759] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[0760] The multicast or broadcast service for which the control information of the multicast service and / or broadcast service set has changed;

[0761] The group to which a new multicast service and / or broadcast service is added;

[0762] The group of existing multicast services and / or broadcast services that has been deleted;

[0763] The group of existing multicast services and / or broadcast services that has been updated;

[0764] Close or enable the HARQ feedback of the multicast service and / or broadcast service set;

[0765] Enable or close the CSI feedback of the multicast service and / or broadcast service set.

[0766] Optionally, the second DCI is used to indicate at least one of the following items:

[0767] The configuration information of the multicast service and / or broadcast service set changes;

[0768] The transmission mode of the multicast service and / or broadcast service set changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[0769] The transmission mode of the multicast service and / or broadcast service set changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[0770] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[0771] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[0772] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[0773] A group to which a new multicast service and / or broadcast service is added;

[0774] A group of existing multicast services and / or broadcast services is deleted;

[0775] An existing group of multicast services and / or broadcast services is updated;

[0776] Turn on or off the HARQ feedback of the multicast service and / or broadcast service set;

[0777] Turn on or off the CSI feedback of the multicast service and / or broadcast service set;

[0778] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[0779] Optionally, the transceiver is used when the first DCI includes information indicating a change in the control information of the multicast service and / or broadcast service, and / or:

[0780] Receive the change information of the control information of the multicast service and / or broadcast service when including information indicating that the control information resource of the multicast service and / or broadcast service carries change information.

[0781] The present invention also provides a network-side device, including: a transceiver and a processor;

[0782] A processor for configuring a set of control information for m multicast services and / or broadcast services;

[0783] In the cell where the m multicast services and / or broadcast services are located, there are n multicast services and / or broadcast services in the multicast area and / or broadcast area;

[0784] A total of k sets of control information for the n multicast services and / or broadcast services are configured;

[0785] m, n, and k are natural numbers greater than or equal to 1, m is less than or equal to n, and k is less than or equal to n.

[0786] Optionally, the processor is further configured to configure at least one of a repetition period, a change period, and a start offset for the transmission of the k sets of control information for the multicast services and / or broadcast services;

[0787] At least one of the repetition period, the change period, and the start offset of the k sets of control information for the multicast services and / or broadcast services is the same or different.

[0788] Optionally, the transceiver is configured to send n sets of control information for the multicast services and / or broadcast services to the terminal every t time domain units within the repetition period of the control information for the multicast services and / or broadcast services, where n and t are positive integers.

[0789] Optionally, the transceiver is further configured to send a first piece of information to the terminal, where the first piece of information is used to indicate a first transmission time, and the first transmission time is the transmission time of the n sets of control information for the multicast services and / or broadcast services within the corresponding time domain unit.

[0790] Optionally, the first piece of information includes at least one of the following pieces of information:

[0791] Information used to indicate the start moment of the first transmission time;

[0792] Information used to indicate the duration of the first transmission time;

[0793] Information used to indicate a first offset, where the first offset is the offset between the first transmission time and the position of the RMSI of the SSB.

[0794] The present invention further provides a terminal, including: a transceiver and a processor;

[0795] A processor for determining the listening opportunity of the physical downlink control channel PDCCH for one or more multicast messages;

[0796] A transceiver for receiving multicast information at the listening opportunity of the physical downlink control channel PDCCH of the multicast message;

[0797] Among them, the timing of a multicast message is the monitoring timing of the PDCCH of a set of multicast messages;

[0798] Among them, the monitoring timing of the PDCCH of a multicast message includes at least one time slot;

[0799] Among them, each time slot included in the monitoring timing of the PDCCH of a multicast message includes at least one time symbol;

[0800] Among them, the multicast information includes at least one of the following:

[0801] DCI for the network to schedule multicast services;

[0802] DCI for the configuration information of the network to schedule multicast services;

[0803] DCI for the information of the control channel of the multicast service;

[0804] DCI for the information of the control channel of the network to schedule multicast services;

[0805] DCI for the scheduling information of the information of the control channel of the multicast service;

[0806] DCI for the update information of the control channel of the network to schedule multicast services;

[0807] DCI for the update information of the control channel of the multicast service;

[0808] DCI for the scheduling information of the update information of the control channel of the multicast service.

[0809] Optionally, the processor is configured to determine the monitoring timing of the PDCCH of the multicast message according to the search space of the multicast message or the set of search spaces of the multicast message;

[0810] Determine the search space of the multicast message by at least one of the following methods:

[0811] The UE reads the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message from the PDCCH common configuration configured by the network through the RRC message; among them, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[0812] The UE reads the search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[0813] If the UE does not find the information of the common search space set of the Nth type of PDCCH configured by the RRC message for the multicast message search space configuration, the association relationship between the PDCCH monitoring occasion of the Nth type of PDCCH common search space set and the SSB block index is the same as the association relationship of the PDCCH monitoring occasion for the PDCCH common search space of type 0;

[0814] Find out the CCE aggregation level in the common search space set of the Nth type of PDCCH and the number of PDCCH candidates for each CCE aggregation level by looking up the table;

[0815] Among them, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space identified as the common type, includes at least one of the following information:

[0816] Search space label;

[0817] The first indication information is used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for the multicast message;

[0818] The second indication information is used to indicate the monitoring period and time offset of a PDCCH monitoring occasion for the multicast message;

[0819] The third indication information is used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for the multicast message;

[0820] The fourth indication information indicates the monitoring time slot and / or monitoring time symbol of a PDCCH monitoring occasion for the multicast message in the form of a bitmap;

[0821] The fifth indication information indicates the monitoring time symbol in a time slot of a PDCCH monitoring occasion for the multicast message in the form of a bitmap;

[0822] The sixth indication information is used to indicate the start symbol and / or duration of a time slot of a PDCCH monitoring occasion for the multicast message;

[0823] The seventh indication information is used to indicate the index of the control resource set associated with this search space.

[0824] Optionally, the monitoring occasions of one or more PDCCHs for the multicast message form a multicast message occasion.

[0825] Optionally, the processor is further used to determine the multicast scheduling radio frame, where MF is a system frame that contains one or more MOs or the starting point of the MO.

[0826] Optionally, the processor is used to select one or more beams for receiving multicast scheduling information.

[0827] Optionally, the timing of a multicast message is the PDCCH monitoring timing of Y multicast messages, where Y is determined according to the actual number of SSBs sent by the cell.

[0828] Optionally, the timing of a multicast message is the PDCCH monitoring timing of a set of multicast messages.

[0829] The Z-th PDCCH monitoring timing in the timing of the multicast message corresponds to the Z-th sent SSB, where Z is a positive integer.

[0830] The present invention further provides a network-side device, including: a transceiver and a processor;

[0831] The transceiver is used to send multicast information at the monitoring timing of the physical downlink control channel PDCCH of one or more multicast messages.

[0832] Among them, the monitoring timing of the PDCCH of a multicast message includes at least one time slot.

[0833] Among them, each time slot included in the monitoring timing of the PDCCH of a multicast message includes at least one time symbol.

[0834] Among them, the multicast information includes at least one of the following:

[0835] DCI for the network to schedule multicast services;

[0836] DCI for the configuration information of the network to schedule multicast services;

[0837] DCI for the information of the control channel of the multicast service;

[0838] DCI for the information of the control channel of the network to schedule multicast services;

[0839] DCI for the scheduling information of the control channel of the multicast service;

[0840] DCI for the update information of the control channel of the network to schedule multicast services;

[0841] DCI for the update information of the control channel of the multicast service;

[0842] DCI for the scheduling information of the update information of the control channel of the multicast service.

[0843] Optionally, the processor is used to associate the monitoring timing of the PDCCH of the multicast message with the corresponding search space of the multicast message or the set of search spaces of the multicast message.

[0844] Configure the search space of multicast messages by at least one of the following methods:

[0845] Information on the common search space set of the Nth type of PDCCH for the search space configuration of multicast messages in the PDCCH common configuration configured by the radio resource control (RRC) message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell with cyclic redundancy check code (CRC);

[0846] The search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell with CRC;

[0847] Wherein, the information on the common search space set of the Nth type of PDCCH, and / or the information on the search space identified as the common type, includes at least one of the following information:

[0848] Search space label;

[0849] The first indication information, which is used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for multicast messages;

[0850] The second indication information, which is used to indicate the monitoring period and time offset of a PDCCH monitoring occasion for multicast messages;

[0851] The third indication information, which is used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for multicast messages;

[0852] The fourth indication information, which indicates the monitoring time slots and / or monitoring time symbols of a PDCCH monitoring occasion for multicast messages in the form of a bitmap;

[0853] The fifth indication information, which indicates the monitoring time symbols in a time slot of a PDCCH monitoring occasion for multicast messages in the form of a bitmap;

[0854] The sixth indication information, which is used to indicate the start symbol and / or duration of a time slot of a PDCCH monitoring occasion for multicast messages;

[0855] The seventh indication information, which is used to indicate the index of the control resource set associated with this search space.

[0856] Optionally, the monitoring occasions of the PDCCHs of one or more multicast messages form a multicast message occasion.

[0857] Optionally, the processor is configured to determine a multicast scheduling radio frame, where MF is a system frame that includes one or more starting points of MO or MOs.

[0858] Optionally, the processor is configured to select one or more beams for transmitting multicast scheduling information.

[0859] Optionally, the timing of a multicast message is the monitoring timing of the PDCCH of Y multicast messages, where Y is determined according to the number of actually transmitted SSBs in the cell.

[0860] Optionally, the timing of a multicast message is the monitoring timing of the PDCCH of a group of multicast messages, including:

[0861] The Z-th PDCCH monitoring timing in the timing of the multicast message corresponds to the Z-th transmitted SSB, where Z is a positive integer.

[0862] The present invention further provides a network-side device, including: a transceiver and a processor;

[0863] The transceiver is configured to send n pieces of control information of multicast services and / or broadcast services to the terminal every t time domain units within the repetition period of the control information of the multicast services and / or broadcast services, where n and t are positive integers.

[0864] Optionally, the transceiver is configured to send first information to the terminal, where the first information is used to indicate a first transmission time, and the first transmission time is the transmission time of the n pieces of control information of the multicast services and / or broadcast services within the corresponding time domain unit.

[0865] Optionally, the first information includes at least one of the following pieces of information:

[0866] Information for indicating the starting moment of the first transmission time;

[0867] Information for indicating the duration of the first transmission time;

[0868] Information for indicating a first offset, where the first offset is the offset between the first transmission time and the position of the RMSI of the SSB.

[0869] The present invention further provides a terminal, including: a transceiver and a processor;

[0870] The transceiver is configured to receive n pieces of control information of multicast services and / or broadcast services sent by the network-side device every t time domain units within the repetition period of the control information of the multicast services and / or broadcast services, where n and t are positive integers.

[0871] Optionally, a processor is configured to obtain a time domain unit corresponding to control information of multicast services and / or broadcast services within the repetition period;

[0872] A transceiver is configured to monitor control information of corresponding multicast services and / or broadcast services in the time domain unit.

[0873] Optionally, the time domain unit is calculated according to the following formula:

[0874] SFN mod sc-mcch-RepetitionPeriod = sc-mcch-Offset +

[0875] (sc-mcch-RepetitionPeriod) divided by

[0876] SFN is the serial number of the time domain unit corresponding to the control information of the first multicast service and / or broadcast service, sc-mcch-RepetitionPeriod is the size of the repetition period, sc-mcch-Offset is the offset of the starting time domain unit of the first repetition period, M is the total number of control information of multicast services and / or broadcast services sent within the repetition period, multicast_ID is the serial number of the multicast service and / or broadcast service, and the multicast_ID is determined according to the sending order of the control information of the multicast service and / or broadcast service within the repetition period.

[0877] Optionally, a transceiver is configured to receive first information sent by the network side device, where the first information is used to indicate a second sending time, and the second sending time is the sending time of the control information of the n multicast services and / or broadcast services in the corresponding time domain unit;

[0878] Receive the control information of the n multicast services and / or broadcast services at the second sending time.

[0879] Optionally, the first information includes at least one of the following information:

[0880] Information for indicating the starting moment of the second sending time;

[0881] Information for indicating the duration of the second sending time;

[0882] Information for indicating a first offset, where the first offset is the offset between the second sending time and the position of the RMSI of the SSB.

[0883] The present invention further provides a network side device, including: a transceiver and a processor;

[0884] A transceiver, configured to send configuration information to a terminal, where the configuration information is used to indicate first symbol information and / or second symbol information in a time slot, the first symbol being a symbol for sending unicast information, and the second symbol being a symbol for sending multicast information and / or broadcast information;

[0885] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[0886] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[0887] Optionally, the configuration information is further used to indicate that a reference signal is inserted every y symbols in the time slot; and / or, the configuration information is further used to indicate that a reference signal is inserted for every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[0888] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[0889] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[0890] Optionally, information about the reference signal needs to be exchanged between different network nodes;

[0891] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[0892] The unicast information includes at least one of a reference signal corresponding to the unicast, control signaling, and data;

[0893] The multicast information includes at least one of a reference signal corresponding to the multicast, control signaling, and data;

[0894] The broadcast information includes at least one of a reference signal corresponding to the broadcast, control signaling, and data;

[0895] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[0896] The present invention further provides a terminal, including: a transceiver and a processor;

[0897] A transceiver, configured to receive configuration information sent by a network-side device,

[0898] and send the configuration information to a terminal. The configuration information is used to indicate first symbol information and / or second symbol information in a time slot. The first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information;

[0899] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[0900] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[0901] Optionally, the configuration information is further used to indicate that a reference signal is inserted every y symbols in the time slot; and / or, the configuration information is further used to indicate that a reference signal is inserted every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[0902] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[0903] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[0904] Optionally, information about the reference signal needs to be exchanged between different network nodes;

[0905] where x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[0906] The unicast information includes at least one of a reference signal corresponding to the unicast, control signaling, and data;

[0907] The multicast information includes at least one of a reference signal corresponding to the multicast, control signaling, and data;

[0908] The broadcast information includes at least one of a reference signal corresponding to the broadcast, control signaling, and data;

[0909] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[0910] The present invention also provides a terminal, including: a transceiver and a processor;

[0911] The transceiver is configured to receive resource configuration information sent by a network - side device, where the resource configuration information is resource configuration information for multicast services and / or broadcast services of an adjacent cell;

[0912] Measure or not measure the resources corresponding to the resource configuration information.

[0913] Optionally, the transceiver is configured to, if the terminal only has unicast services, not measure the resources corresponding to the resource configuration information;

[0914] If the terminal only has multicast services and / or broadcast services, measure the resources corresponding to the resource configuration information;

[0915] If the terminal has both unicast services and multicast services and / or broadcast services, measure the resources corresponding to the resource configuration information.

[0916] The present invention also provides a terminal, including a memory, a processor, and a program stored on the memory and executable on the processor; when the processor executes the program, the steps in any of the above - mentioned methods applied to the terminal are implemented.

[0917] The present invention also provides a network - side device, including a memory, a processor, and a program stored on the memory and executable on the processor; when the processor executes the program, the steps in any of the above - mentioned methods applied to the network - side device are implemented.

[0918] In a ninth aspect, the present invention also provides a readable storage medium, on which a program is stored, and when the program is executed by a processor, the steps in any of the above - mentioned methods are implemented.

[0919] The beneficial effects of the above - mentioned technical solutions of the present invention are as follows:

[0920] In the embodiments of the present invention, by using DCI to indicate the update or non - update of control information for multicast services and / or broadcast services, the terminal can be accelerated to obtain MCCH update information, more quickly obtain accurate multicast and / or broadcast data, and meet the requirements of low latency. It can be applied to multiple 5G application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0921] Figure 1 It is a schematic diagram of a solution for changing MCCH information in the prior art;

[0922] Figure 2 It is a schematic flowchart of an information communication method in the embodiments of the present invention;

[0923] Figure 3Schematic flowchart of an information communication method in an embodiment of the present invention;

[0924] Figure 4 Schematic flowchart of an information communication method in an embodiment of the present invention;

[0925] Figure 5 Schematic flowchart of an information communication method in an embodiment of the present invention;

[0926] Figure 6 Schematic flowchart of an information configuration method in an embodiment of the present invention;

[0927] Figure 7 Schematic flowchart of an information receiving method in an embodiment of the present invention;

[0928] Figure 7a Schematic flowchart of an information sending method in an embodiment of the present invention;

[0929] Figure 7b Schematic flowchart of an information receiving method in an embodiment of the present invention;

[0930] Figure 8 Schematic flowchart of an information sending method in an embodiment of the present invention;

[0931] Figure 9 Schematic flowchart of an information receiving method in an embodiment of the present invention;

[0932] Figure 10 Schematic flowchart of a resource configuration method in an embodiment of the present invention;

[0933] Figure 11 Schematic flowchart of a resource configuration method in an embodiment of the present invention;

[0934] Figure 12 Schematic flowchart of an information measurement method in an embodiment of the present invention;

[0935] Figure 13 Schematic diagram of the structure of a network - side device in an embodiment of the present invention;

[0936] Figure 14 Schematic diagram of the structure of a network - side device in an embodiment of the present invention;

[0937] Figure 15 Schematic diagram of the structure of a terminal in an embodiment of the present invention;

[0938] Figure 16 Schematic diagram of the structure of a terminal in an embodiment of the present invention;

[0939] Figure 17Schematic diagram of a network - side device in an embodiment of the present invention;

[0940] Figure 18 Schematic diagram of a terminal in an embodiment of the present invention;

[0941] Figure 18a Schematic diagram of a network - side device in an embodiment of the present invention;

[0942] Figure 19 Schematic diagram of a network - side device in an embodiment of the present invention;

[0943] Figure 20 Schematic diagram of a terminal in an embodiment of the present invention;

[0944] Figure 21 Schematic diagram of a network - side device in an embodiment of the present invention;

[0945] Figure 22 Schematic diagram of a terminal in an embodiment of the present invention;

[0946] Figure 23 Schematic diagram of a network - side device in an embodiment of the present invention;

[0947] Figure 24 Schematic diagram of a terminal in an embodiment of the present invention;

[0948] Figure 25 Schematic diagram of a network - side device in an embodiment of the present invention;

[0949] Figure 25a Schematic diagram of a terminal in an embodiment of the present invention;

[0950] Figure 25b Schematic diagram of a network - side device in an embodiment of the present invention;

[0951] Figure 25c Schematic diagram of a network - side device in an embodiment of the present invention;

[0952] Figure 26 Schematic diagram of a terminal in an embodiment of the present invention;

[0953] Figure 27 Schematic diagram of a network - side device in an embodiment of the present invention;

[0954] Figure 28 Schematic diagram of a terminal in an embodiment of the present invention;

[0955] Figure 29 Schematic diagram of a terminal in an embodiment of the present invention;

[0956] Figure 30 It is a schematic structural diagram of a network - side device in an embodiment of the present invention;

[0957] Figure 31 It is a schematic structural diagram of a terminal in an embodiment of the present invention;

[0958] Figure 32 It is a schematic structural diagram of a network - side device in an embodiment of the present invention;

[0959] Figure 33 It is a schematic structural diagram of a terminal in an embodiment of the present invention;

[0960] Figure 34 It is a schematic structural diagram of a network - side device in an embodiment of the present invention;

[0961] Figure 35 It is a schematic structural diagram of a terminal in an embodiment of the present invention;

[0962] Figure 36 It is a schematic structural diagram of a network - side device in an embodiment of the present invention;

[0963] Figure 37 It is a schematic structural diagram of a terminal in an embodiment of the present invention;

[0964] Figure 38 It is a schematic structural diagram of a terminal in an embodiment of the present invention. Detailed implementation manners

[0965] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0966] Please refer to Figure 2 , Figure 2 It is a schematic flowchart of an information communication method provided by an embodiment of the present invention. This method is applied to a network - side device and includes the following steps:

[0967] Step 21: Send the first downlink control information (DCI) scrambled with a first radio network temporary identifier (RNTI) to the terminal. The first DCI is used to indicate whether the control information of a multicast service and / or a broadcast service is updated or the relevant updated information;

[0968] Wherein, the control information includes the configuration information of the multicast service and / or the broadcast service.

[0969] In the embodiment of the present invention, by using DCI to indicate the update or non-update of the control information of the multicast service and / or the broadcast service, the terminal can be accelerated to obtain the update information of the multicast control channel (MCCH), and the accurate multicast and / or broadcast data can be obtained more quickly, meeting the requirements of low latency. It can be applied to multiple 5G application scenarios.

[0970] Optionally, the configuration information of the one multicast service and / or broadcast service includes at least one of the following items:

[0971] A list of temporary mobile group identities (TMGIs);

[0972] The session ID (Session ID) corresponding to the TMGI in the list of TMGIs;

[0973] The group RNTI (G-RNTI) corresponding to the TMGI in the list of TMGIs;

[0974] The partial bandwidth (bandwidth Part, BWP) corresponding to the TMGI in the list of TMGIs;

[0975] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[0976] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[0977] The discontinuous reception (DRX) configuration corresponding to the TMGI in the list of TMGIs;

[0978] The uplink resource configuration of the hybrid automatic repeat request (HARQ) feedback corresponding to the TMGI in the list of TMGIs;

[0979] Uplink resource configuration for reporting channel state information (CSI) corresponding to the TMGI in the list of TMGIs.

[0980] Of course, in addition to including at least one of the above, the configuration information of the multicast service and / or broadcast service on the MCCH may further include at least one of the synchronization signal / physical broadcast channel signal block (or synchronization signal block) (Synchronization Signal and PBCH block, SSB, that is, SS / PBCH Block, including PSS (primary synchronization signal), SSS (secondary synchronization signal) and PBCH (physical broadcast channel), and can also be referred to as synchronization signal / broadcast channel block), channel state information reference signal (Channel State Information Reference Signal, CSI-RS), transmission configuration indicator (Transmission Configuration Indicator, TCI), and beam corresponding to the TMGI in the list of TMGIs.

[0981] Among them, PBCH is Physical Broadcast Channel. SSB is Synchronization Signal and PBCH block (abbreviation: SSB).

[0982] Optionally, the first DCI is used to indicate at least one of the following:

[0983] The control information of the multicast service and / or broadcast service has changed;

[0984] Whether the control information of the multicast service and / or broadcast service has changed;

[0985] The changed control information of the multicast service and / or broadcast service;

[0986] The type of the changed control information of the multicast service and / or broadcast service;

[0987] Resource information for reading the changed control information of the multicast service and / or broadcast service.

[0988] Optionally, when the first DCI is used to indicate that the control information of the multicast service and / or broadcast service has changed, the first DCI is further used to indicate at least one of the following:

[0989] The configuration information of the multicast service and / or broadcast service has changed;

[0990] The transmission mode of the multicast service and / or broadcast service changes from the single-cell point-to-multipoint (SC-PTM) transmission mode to the multi-cell point-to-multipoint transmission mode (i.e., the MBMS transmission mode).

[0991] The transmission mode of the multicast service and / or broadcast service changes from the multi-cell point-to-multipoint transmission mode to the single-cell point-to-multipoint transmission mode.

[0992] The transmission mode of the multicast service and / or broadcast service changes from the point-to-multipoint transmission mode to the point-to-point transmission mode.

[0993] The transmission mode of the multicast service and / or broadcast service changes from the point-to-point transmission mode to the point-to-multipoint transmission mode.

[0994] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service changes.

[0995] A new group of multicast services and / or broadcast services is added.

[0996] An existing group of multicast services and / or broadcast services is deleted.

[0997] An existing group of multicast services and / or broadcast services is updated.

[0998] Close or open the HARQ feedback of the multicast service and / or broadcast service.

[0999] Open or close the CSI feedback of the multicast service and / or broadcast service.

[1000] In the embodiments of the present invention, one or more of the above information can be indicated in a scheduling unit (e.g., 1 time slot).

[1001] For example, when a cell has a single-cell multicast control channel (SC-MCCH), regarding the update of the SC-MCCH information, it can be implemented in a PDCCH, without using the notification period and modification period of the prior art to implement the update method of the SC-MCCH information. The specific method is as follows:

[1002] Use a field in the DCI of the PDCCH to indicate the MCCH state. This message can be scrambled with a new RNTI or continue to use the SC-RNTI for scrambling.

[1003] The MCCH state Indicator–2 bits is determined according to Table 1 below:

[1004] Table 1

[1005] 01 The configuration of MCCH has not changed 10 The configuration of MCCH has changed 11 Optimization Whether the MCCH resource indicated by this DCI carries change information

[1006] Or: MCCH status Indicator – 4 bits is determined according to Table 2 below:

[1007] Table 2

[1008] 0001 The configuration of MCCH has not changed 0010 The configuration of MCCH has changed 0011-1110 Identification information of the changed multicast service 1111 Optimization Whether the MCCH resource indicated by this DCI carries change information

[1009] If it is 11 in Table 1 or 1111 in Table 2, Messages – 8. If it is 01 or 0001, this field is reserved and the UE can ignore it:

[1010] Table 3: MCCH Status Change Messages

[1011] Bit Short Message 1 The transmission resource of MTCH has changed 2 The transmission of SC-PTM becomes the transmission of MBMS 3 The transmission of SC-Ptm becomes the transmission of unicast 4 The period of MTCH changes / offset changes / MCS / TB changes 5 Add TMGI 6 Turn off / turn on HARQ feedback 7 Turn on CSI feedback

[1012] Or:

[1013] Table 4: MCCH Status Change Messages

[1014] Bit Short Message m-bit bitmap Identification information of the changed multicast service 1 The transmission resource of MTCH has changed 2 The transmission of SC-PTM becomes the transmission of MBMS 3 The transmission of SC-Ptm becomes the transmission of unicast 4 The period of MTCH changes / offset changes / MCS / TB changes 5 Add TMGI 6 Turn off / turn on HARQ feedback 7 Turn on CSI feedback

[1015] Wherein, MCS: Modulation and coding scheme, modulation and coding scheme; TB: Transport Block, transport block.

[1016] Then, the UE determines whether the information of the SC-MCCH has changed according to the content in this DCI. Optionally, which multicast service's SC-MCCH information has changed, and / or the specific change content; and where the changed SC-MCCH information can be read.

[1017] Finally, the UE reads the SC-PTM configuration information according to the changed SC-MCCH information.

[1018] For another example, when there are multiple SC-MCCHs in a cell:

[1019] Step 1: The SC-RNTIs of different groups are different, and the correspondence between different multicast services and SC-RNTIs is configured through RRC messages;

[1020] Step 2: Regarding the update of the SC-MCCH information, it can be implemented in a PDCCH. Instead of using the notification period and modification period of the existing technology to update the SC-MCCH information, the specific method is as follows:

[1021] Use a field in the DCI of PDCCH to indicate the MCCH status. This message can be scrambled with a new RNTI or continue to use the SC-RNTI for scrambling.

[1022] MCCH status Indicator – 2 bits is determined according to the following table:

[1023] 01 The configuration of MCCH has not changed 10 The configuration of MCCH has changed 11 Whether the MCCH resource indicated by this DCI carries change information

[1024] If it is 11, Messages – 8 bits. If it is 01, this field is reserved and the UE can ignore it:

[1025] Table 6.5-1: MCCH status change Messages

[1026] Bit Short Message 1 The transmission resource of MTCH has changed 2 The transmission of SC-PTM becomes the transmission of MBMS 3 The transmission of SC-Ptm becomes the transmission of unicast 4 The period of MTCH changes / offset changes / MCS / TB changes 5 Add TMGI 6 Turn off / turn on HARQ feedback 7 Turn on CSI feedback

[1027] Then, the UE determines whether the information of the SC-MCCH has changed according to the content in this DCI. Optionally, which specific multicast service's SC-MCCH information has changed, and / or the specific change content; and where the changed SC-MCCH information can be read.

[1028] Optionally, the first DCI is used to indicate at least one of the following:

[1029] The configuration information of the multicast service and / or broadcast service has changed;

[1030] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1031] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1032] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1033] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1034] The multicast or broadcast service whose control information of the multicast service and / or broadcast service has changed;

[1035] A new group of multicast services and / or broadcast services has been added;

[1036] An existing group of multicast services and / or broadcast services has been deleted;

[1037] Updated the group of existing multicast services and / or broadcast services;

[1038] Closed or enabled the HARQ feedback of the multicast service and / or broadcast service;

[1039] Enabled or disabled the CSI feedback of the multicast service and / or broadcast service.

[1040] Optionally, after sending the first DCI scrambled with the first RNTI to the terminal, it further includes:

[1041] When the first DCI includes information indicating a change in the control information for the multicast service and / or broadcast service, and / or:

[1042] When including information indicating a change in the control information resource carrying the change information for the multicast service and / or broadcast service, send the change information of the control information for the multicast service and / or broadcast service.

[1043] Optionally, the method further includes:

[1044] Broadcast each piece of the control information for the multiple multicast services and / or broadcast services; or,

[1045] Broadcast the control information for the first multicast service and / or broadcast service among the control information for the multiple multicast services and / or broadcast services, and the control information for the other multicast services and / or broadcast services among the control information for the multiple multicast services and / or broadcast services is the same as the control information for the first multicast service and / or broadcast service;

[1046] Wherein, the control information includes at least one of a repetition period, an offset, a starting subframe, and a modification period.

[1047] In an embodiment of the present invention, if there are multiple SC-MCCHs in a cell, such as 10 SC-MCCHs. One method is that the system message still broadcasts the scheduling information such as the repetition period, offset, starting subframe, and modification period of each set of SC-MCCH respectively; or,

[1048] For the scheduling information of multiple multicast groups, if the scheduling information parameters such as the repetition period, offset, starting subframe, and modification period of the transmission information are the same, then broadcast one set and carry the multicast group information;

[1049] Alternatively, if the repetition periods of the transmission information for different groups are the same, then to maintain good forward compatibility and save signaling overhead, the system message does not broadcast multiple sets of repetition periods, offsets, starting subframes, and modification periods of the SC-MCCH; the system message still only broadcasts a set of scheduling information such as the repetition period, offset, starting subframe, and modification period of the SC-MCCH; the UE derives the time when the SC-MCCH of the corresponding group appears based on the ID numbers of different groups.

[1050] Please refer to Figure 3 , Figure 3 which is a schematic flowchart of an information communication method provided by an embodiment of the present invention. This method is applied to a network-side device and includes the following steps:

[1051] Step 31: Send a second DCI scrambled with a second RNTI to the terminal. The second DCI is used to indicate whether the control information of a multicast service and / or a broadcast service set is updated or updated-related information;

[1052] Wherein, the control information includes configuration information of the multicast service and / or the broadcast service.

[1053] In the embodiment of the present invention, by using DCI to indicate the update or non-update of the control information of the multicast service and / or the broadcast service, it is possible to accelerate the terminal's acquisition of the update information of the Multicast Control Channel (MCCH), obtain accurate multicast and / or broadcast data more quickly, and meet the requirements of low latency. It can be applied to multiple 5G application scenarios.

[1054] Optionally, the configuration information of the one multicast service and / or broadcast service includes at least one of the following items:

[1055] A list of TMGIs;

[1056] The Session ID corresponding to the TMGI in the list of TMGIs;

[1057] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[1058] The BWP corresponding to the TMGI in the list of TMGIs;

[1059] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[1060] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1061] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1062] Uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1063] Uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[1064] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[1065] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or broadcast area.

[1066] Optionally, the second DCI is used to indicate at least one of the following:

[1067] The control information of the set of one or more multicast services and / or broadcast services has changed;

[1068] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[1069] The changed control information of the set of one or more multicast services and / or broadcast services;

[1070] The type of the changed control information of the set of one or more multicast services and / or broadcast services;

[1071] Resource information for reading the changed control information of the set of one or more multicast services and / or broadcast services.

[1072] Optionally, when the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[1073] The configuration information of the set of multicast services and / or broadcast services has changed;

[1074] The transmission mode of the set of multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1075] The transmission mode of the set of multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1076] The transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1077] The transmission mode of the multicast service and / or broadcast service set changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[1078] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[1079] A group that adds a new multicast service and / or broadcast service;

[1080] A group that deletes an existing multicast service and / or broadcast service;

[1081] A group that updates an existing multicast service and / or broadcast service;

[1082] Close or enable the HARQ feedback of the multicast service and / or broadcast service set;

[1083] Enable or close the CSI feedback of the multicast service and / or broadcast service set.

[1084] Optionally, the second DCI is used to indicate at least one of the following:

[1085] The configuration information of the multicast service and / or broadcast service set changes;

[1086] The transmission mode of the multicast service and / or broadcast service set changes from a single-cell point-to-multipoint transmission mode to a multi-cell point-to-multipoint transmission mode;

[1087] The transmission mode of the multicast service and / or broadcast service set changes from a multi-cell point-to-multipoint transmission mode to a single-cell point-to-multipoint transmission mode;

[1088] The transmission mode of the multicast service and / or broadcast service set changes from a point-to-multipoint transmission mode to a point-to-point transmission mode;

[1089] The transmission mode of the multicast service and / or broadcast service set changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[1090] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[1091] A group that adds a new multicast service and / or broadcast service;

[1092] A group that deletes an existing multicast service and / or broadcast service;

[1093] A group that updates an existing multicast service and / or broadcast service;

[1094] Turn on or off the HARQ feedback for the multicast service and / or broadcast service set;

[1095] Turn on or off the CSI feedback for the multicast service and / or broadcast service set;

[1096] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[1097] Optionally, the second DCI is used to indicate at least one of the following items:

[1098] The configuration information of the multicast service and / or broadcast service set has changed;

[1099] The transmission mode of the multicast service and / or broadcast service set changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1100] The transmission mode of the multicast service and / or broadcast service set changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1101] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1102] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1103] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service set has changed;

[1104] The group to which a new multicast service and / or broadcast service is added;

[1105] The group of existing multicast services and / or broadcast services that has been deleted;

[1106] The group of existing multicast services and / or broadcast services that has been updated;

[1107] Turn on or off the HARQ feedback for the multicast service and / or broadcast service set;

[1108] Turn on or off the CSI feedback for the multicast service and / or broadcast service set.

[1109] Optionally, the second DCI is used to indicate the following:

[1110] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[1111] Optionally, the second DCI is further used to indicate at least one of the following items:

[1112] The configuration information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes;

[1113] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[1114] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[1115] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from the point-to-multipoint transmission mode to the point-to-point transmission mode;

[1116] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from the point-to-point transmission mode to the point-to-multipoint transmission mode;

[1117] The multicast or broadcast service in which the control information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes;

[1118] A group to which a new multicast service and / or broadcast service is added;

[1119] A group of existing multicast services and / or broadcast services is deleted;

[1120] An existing group of multicast services and / or broadcast services is updated;

[1121] Close or enable the HARQ feedback of some of the multicast services and / or broadcast services in the multicast service and / or broadcast service set;

[1122] Enable or disable the CSI feedback of some of the multicast services and / or broadcast services in the multicast service and / or broadcast service set.

[1123] Optionally, after sending the second DCI scrambled with the second RNTI to the terminal, the following is further included:

[1124] When the second DCI includes information indicating that the control information of the multicast service and / or broadcast service changes, and / or:

[1125] When there is information indicating a change in the control information resource carrying information for multicast services and / or broadcast services, send the change information of the control information for the multicast services and / or broadcast services.

[1126] Optionally, the method further includes:

[1127] Broadcast each of the control information for multiple multicast services and / or broadcast services; or,

[1128] Broadcast the control information for the first multicast service and / or broadcast service among the control information for multiple multicast services and / or broadcast services, and the control information for other multicast services and / or broadcast services among the control information for multiple multicast services and / or broadcast services is the same as the control information for the first multicast service and / or broadcast service;

[1129] Wherein, the control information includes at least one of a repetition period, an offset, a start subframe, and a modification period.

[1130] Please refer to Figure 4 , Figure 4 which is a schematic flowchart of an information communication method provided by an embodiment of the present invention. This method is applied to a terminal and includes the following steps:

[1131] Step 41: Receive a first DCI scrambled with a first RNTI sent by a network-side device, where the first DCI is used to indicate whether the control information for a multicast service and / or a broadcast service is updated or updated-related information;

[1132] Wherein, the control information includes configuration information for the multicast service and / or the broadcast service.

[1133] In an embodiment of the present invention, by using DCI to indicate the update or non-update of the control information for the multicast service and / or the broadcast service, the terminal can be accelerated to obtain MCCH update information, and more quickly obtain accurate multicast and / or broadcast data, meeting the requirements of low latency. It can be applied to multiple 5G application scenarios.

[1134] Optionally, the configuration information for the one multicast service and / or broadcast service includes at least one of the following:

[1135] A list of TMGIs;

[1136] The Session ID corresponding to the TMGI in the list of TMGIs;

[1137] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[1138] The BWP corresponding to the TMGI in the list of TMGIs;

[1139] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[1140] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1141] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1142] The uplink resource configuration of HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1143] The uplink resource configuration of CSI reporting corresponding to the TMGI in the list of TMGIs.

[1144] Optionally, the first DCI is used to indicate at least one of the following:

[1145] The control information of the multicast service and / or broadcast service has changed;

[1146] Whether the control information of the multicast service and / or broadcast service has changed;

[1147] The changed control information of the multicast service and / or broadcast service;

[1148] The type of the changed control information of the multicast service and / or broadcast service;

[1149] The resource information for reading the changed control information of the multicast service and / or broadcast service.

[1150] Optionally, when the first DCI is used to indicate that the control information of the multicast service and / or broadcast service has changed, the first DCI is further used to indicate at least one of the following:

[1151] The configuration information of the multicast service and / or broadcast service has changed;

[1152] The transmission mode of the multicast service and / or broadcast service changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode (i.e., the MBMS transmission mode);

[1153] The transmission mode of the multicast service and / or broadcast service changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[1154] The transmission mode of the multicast service and / or broadcast service changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[1155] The transmission mode of the multicast service and / or broadcast service changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[1156] A multicast or broadcast service in which the control information of the multicast service and / or broadcast service has changed;

[1157] A group that has added a new multicast service and / or broadcast service;

[1158] A group that has deleted an existing multicast service and / or broadcast service;

[1159] A group that has updated an existing multicast service and / or broadcast service;

[1160] Turn off or on the HARQ feedback of the multicast service and / or broadcast service;

[1161] Turn on or off the CSI feedback of the multicast service and / or broadcast service.

[1162] Optionally, the first DCI is used to indicate at least one of the following:

[1163] The configuration information of the multicast service and / or broadcast service has changed;

[1164] The transmission mode of the multicast service and / or broadcast service has changed from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1165] The transmission mode of the multicast service and / or broadcast service has changed from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1166] The transmission mode of the multicast service and / or broadcast service has changed from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1167] The transmission mode of the multicast service and / or broadcast service has changed from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1168] A multicast or broadcast service in which the control information of the multicast service and / or broadcast service has changed;

[1169] A group that has added a new multicast service and / or broadcast service;

[1170] A group that has deleted an existing multicast service and / or broadcast service;

[1171] A group that has updated an existing multicast service and / or broadcast service;

[1172] Turn off or on the HARQ feedback of the multicast service and / or broadcast service;

[1173] Turn on or off the CSI feedback of the multicast service and / or broadcast service.

[1174] Optionally, after receiving the first DCI scrambled by the first RNTI sent by the receiving network side device, the method further includes:

[1175] When the first DCI includes information indicating a change in control information for multicast services and / or broadcast services, and / or:

[1176] When including information indicating a change in control information resources carrying change information for multicast services and / or broadcast services, receiving change information of the control information for multicast services and / or broadcast services.

[1177] Please refer to Figure 5 , Figure 5 which is a schematic flowchart of an information communication method provided by an embodiment of the present invention. This method is applied to a terminal and includes the following steps:

[1178] Step 51: Receive a second DCI scrambled by a second RNTI sent by a network side device, where the second DCI is used to indicate whether control information for a set of multicast services and / or broadcast services is updated or updated-related information;

[1179] Wherein, the control information includes configuration information for multicast services and / or broadcast services.

[1180] In the embodiment of the present invention, by using DCI to indicate the update or non-update of control information for multicast services and / or broadcast services, the terminal can be accelerated to obtain MCCH update information, and more quickly obtain accurate multicast and / or broadcast data, meeting the requirements of low latency. It can be applied to multiple 5G application scenarios.

[1181] Optionally, the configuration information for a set of multicast services and / or broadcast services includes at least one of the following:

[1182] A list of TMGIs;

[1183] The Session ID corresponding to the TMGI in the list of TMGIs;

[1184] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[1185] The BWP corresponding to the TMGI in the list of TMGIs;

[1186] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[1187] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1188] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1189] Uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1190] Uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[1191] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[1192] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or broadcast area.

[1193] Optionally, the second DCI is used to indicate at least one of the following:

[1194] The control information of the set of one or more multicast services and / or broadcast services has changed;

[1195] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[1196] The changed control information of the set of one or more multicast services and / or broadcast services;

[1197] The type of the changed control information of the set of one or more multicast services and / or broadcast services;

[1198] Resource information for reading the changed control information of the set of one or more multicast services and / or broadcast services.

[1199] Optionally, in the case where the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[1200] The configuration information of the set of one or more multicast services and / or broadcast services has changed;

[1201] The transmission mode of the set of one or more multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1202] The transmission mode of the set of one or more multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1203] The transmission mode of the set of one or more multicast services and / or broadcast services changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1204] The transmission mode of the multicast service and / or broadcast service set changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[1205] A multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[1206] A group that adds new multicast services and / or broadcast services;

[1207] A group that deletes existing multicast services and / or broadcast services;

[1208] A group that updates existing multicast services and / or broadcast services;

[1209] Close or enable the HARQ feedback of the multicast service and / or broadcast service set;

[1210] Enable or disable the CSI feedback of the multicast service and / or broadcast service set.

[1211] Optionally, the second DCI is used to indicate at least one of the following:

[1212] The configuration information of the multicast service and / or broadcast service set changes;

[1213] The transmission mode of the multicast service and / or broadcast service set changes from a single-cell point-to-multipoint transmission mode to a multi-cell point-to-multipoint transmission mode;

[1214] The transmission mode of the multicast service and / or broadcast service set changes from a multi-cell point-to-multipoint transmission mode to a single-cell point-to-multipoint transmission mode;

[1215] The transmission mode of the multicast service and / or broadcast service set changes from a point-to-multipoint transmission mode to a point-to-point transmission mode;

[1216] The transmission mode of the multicast service and / or broadcast service set changes from a point-to-point transmission mode to a point-to-multipoint transmission mode;

[1217] A multicast or broadcast service in which the control information of the multicast service and / or broadcast service set changes;

[1218] A group that adds new multicast services and / or broadcast services;

[1219] A group that deletes existing multicast services and / or broadcast services;

[1220] A group that updates existing multicast services and / or broadcast services;

[1221] Turn on or off the HARQ feedback for the multicast service and / or broadcast service set;

[1222] Turn on or off the CSI feedback for the multicast service and / or broadcast service set.

[1223] Optionally, the second DCI is used to indicate the following:

[1224] The identification information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set.

[1225] Optionally, the second DCI is further used to indicate at least one of the following:

[1226] The configuration information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set has changed;

[1227] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1228] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1229] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1230] The transmission mode of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1231] The multicast or broadcast service for which the control information of the changed multicast service and / or broadcast service in the multicast service and / or broadcast service set has changed;

[1232] A group with a new multicast service and / or broadcast service added;

[1233] A group with an existing multicast service and / or broadcast service deleted;

[1234] An existing group of multicast services and / or broadcast services updated;

[1235] Turn on or off the HARQ feedback for some of the multicast services and / or broadcast services in the multicast service and / or broadcast service set;

[1236] Enable or disable CSI feedback for some of the multicast services and / or broadcast services in the multicast service and / or broadcast service set.

[1237] Optionally, after receiving the second DCI scrambled with the second RNTI sent by the network side device, it further includes:

[1238] When the second DCI includes information indicating a change in control information for multicast services and / or broadcast services, and / or:

[1239] When including information indicating a change in the control information resource carrying change information for multicast services and / or broadcast services, receive the change information of the control information for multicast services and / or broadcast services.

[1240] Please refer to Figure 6 , Figure 6 is a schematic flowchart of an information configuration method provided by an embodiment of the present invention. This method is applied to a network side device and includes the following steps:

[1241] Step 61: Configure a set of control information for m multicast services and / or broadcast services;

[1242] In the cell, multicast area, and / or broadcast area where the m multicast services and / or broadcast services are located, there are n multicast services and / or broadcast services;

[1243] A total of k sets of control information for multicast services and / or broadcast services are configured for the n multicast services and / or broadcast services;

[1244] m, n, and k are natural numbers greater than or equal to 1, m is less than or equal to n, and k is less than or equal to n.

[1245] In the embodiment of the present invention, configuring a set of control information for multiple multicast services and / or broadcast services can improve resource utilization.

[1246] Optionally, the method further includes:

[1247] Configure at least one of a repetition period, a change period, and a start offset for the transmission of k sets of control information for multicast services and / or broadcast services;

[1248] At least one of the repetition period, change period, and start offset of the k sets of control information for multicast services and / or broadcast services is the same or different.

[1249] Optionally, the method further includes:

[1250] Within the repetition period of the control information of the multicast service and / or broadcast service, n pieces of control information of the multicast service and / or broadcast service are sent to the terminal every t time domain units, where n and t are positive integers.

[1251] Optionally, before sending n pieces of control information of the multicast service and / or broadcast service to the terminal every t time domain units within the repetition period of the control information of the multicast service and / or broadcast service, it further includes:

[1252] Sending a first piece of information to the terminal, where the first piece of information is used to indicate a first transmission time, and the first transmission time is the transmission time of the n pieces of control information of the multicast service and / or broadcast service within the corresponding time domain unit.

[1253] Optionally, the first piece of information includes at least one of the following pieces of information:

[1254] Information used to indicate the starting moment of the first transmission time;

[1255] Information used to indicate the duration of the first transmission time;

[1256] Information used to indicate a first offset, where the first offset is the offset between the first transmission time and the position of the RMSI of the SSB.

[1257] Here, RMSI (Remaining Minimum System Information) is the remaining minimum system information.

[1258] Please refer to Figure 7 , Figure 7 which is a schematic flowchart of a method for receiving information provided by an embodiment of the present invention. This method is applied to a terminal and includes the following steps:

[1259] Step 71: Determine the monitoring opportunity of the physical downlink control channel PDCCH of one or more multicast messages, and receive multicast information at the monitoring opportunity of the physical downlink control channel PDCCH of the multicast message;

[1260] Here, the opportunity of one multicast message is the monitoring opportunity of the PDCCH of a group of multicast messages;

[1261] Here, the monitoring opportunity of the PDCCH of one multicast message includes at least one time slot;

[1262] Here, each time slot included in the monitoring opportunity of the PDCCH of one multicast message includes at least one time symbol;

[1263] Here, the multicast information includes at least one of the following:

[1264] DCI for network scheduling multicast service;

[1265] DCI for configuration information of network scheduling multicast service;

[1266] DCI for information of control channel of multicast service;

[1267] DCI for information of control channel of network scheduling multicast service;

[1268] DCI for scheduling information of information of control channel of multicast service;

[1269] DCI for update information of control channel of network scheduling multicast service;

[1270] DCI for update information of control channel of multicast service;

[1271] DCI for scheduling information of update information of control channel of multicast service.

[1272] The multicast message is the content carried in the PDSCH, the multicast information refers to the content monitored, and the terminal can find the transmission resource of the multicast message by using the multicast information.

[1273] In the present invention, the "receiving" in "determining the monitoring opportunity of the physical downlink control channel PDCCH of one or more multicast messages and receiving multicast information at the monitoring opportunity of the physical downlink control channel PDCCH of the multicast message" also means "monitoring" or "detecting".

[1274] In the embodiments of the present invention, regarding the monitoring opportunity (MO) of monitoring multicast scheduling information and / or multicast service information, especially for terminals in the idle state and the connected state, the public search space is used to receive the multicast scheduling information and / or multicast service information. The terminal only needs to wake up to monitor the PDCCH and the corresponding PDSCH at the corresponding scheduling time slot, without continuously monitoring the PDCCH of the SC-RNTI, reducing power consumption.

[1275] Taking the monitoring of multicast scheduling information as an example, the terminal monitors the multicast scheduling information within a monitoring opportunity (MO) of multicast scheduling information in each period of reading the multicast scheduling information. The MO is a set of PDCCH monitoring opportunities, which can include multiple time slots (for example, subframes or Orthogonal Frequency Division Multiplexing (OFDM) symbols), in which the DCI of the multicast scheduling message can be sent.

[1276] Optionally, the determining the monitoring opportunity of the physical downlink control channel PDCCH of one or more multicast messages includes:

[1277] Determine the listening opportunity of the PDCCH for the multicast message according to the search space of the multicast message or the set of search spaces of the multicast message;

[1278] Determine the search space of the multicast message by at least one of the following methods:

[1279] The UE reads the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message in the PDCCH common configuration configured by the network through the RRC message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell with Cyclic Redundancy Check (CRC);

[1280] The UE reads the search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell with CRC;

[1281] If the UE does not find the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message in the RRC message, the association relationship between the PDCCH listening opportunity of the common search space set of the Nth type of PDCCH and the SSB block index is the same as the association relationship of the PDCCH listening opportunity for the common search space of type 0;

[1282] Find out the CCE aggregation level in the common search space set of the Nth type of PDCCH and the number of PDCCH candidates for each CCE aggregation level by looking up a table;

[1283] Wherein, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space identified as the common type, includes at least one of the following information:

[1284] Search space label;

[1285] The first indication information is used to indicate the first time symbol in the control resource set in a slot of a PDCCH listening opportunity for a multicast message;

[1286] The second indication information is used to indicate the listening period and time offset of a PDCCH listening opportunity for a multicast message;

[1287] The third indication information is used to indicate the start symbol and / or duration in a listening period of a PDCCH listening opportunity for a multicast message;

[1288] The fourth indication information indicates, in the form of a bitmap, a monitoring time slot and / or a monitoring time symbol of a PDCCH monitoring occasion for a multicast message;

[1289] The fifth indication information indicates, in the form of a bitmap, a monitoring time symbol in a time slot of a PDCCH monitoring occasion for a multicast message;

[1290] The sixth indication information is used to indicate a start symbol and / or a duration of a time slot of a PDCCH monitoring occasion for a multicast message;

[1291] The seventh indication information is used to indicate an index of a control resource set associated with this search space.

[1292] Optionally, the PDCCH monitoring occasions of one or more multicast messages form a multicast message occasion.

[1293] The following is an example to illustrate the method for determining the MF and MO for monitoring a multicast scheduling message:

[1294] Define a set of PDCCH candidates for the terminal to monitor according to the PDCCH search space set. The search space set can be a common search space set or a search space set specific to the terminal. The terminal monitors PDCCH candidates in one or more of the following search space sets. Add a common search space set of TypeN-PDCCH configured with X-SearchSpace in PDCCH-ConfigCommon (PDCCH common configuration); wherein, this common search space is used for the DCI format configuration of the CRC scrambled by the multicast-RNTI on the primary cell.

[1295] If the higher layer parameter MB-SearchSpace for the type x-PDCCH common search space set is not provided to the UE, the association relationship between the PDCCH monitoring occasion of the type X-PDCCH common search space set and the SS / PBCH block index is the same as that for the TYPE0-PDCCH common monitoring occasion. Set the TYPE0-PDCCH common search space. The aggregation level of the control channel element (CCE) in the X-PDCCH common search space set and the number of PDCCH candidates for each CCE aggregation level can be found by looking up a table.

[1296] Based on the first PDCCH monitoring occasion configured by the protocol-specified X-SearchSpace and RRC signaling, it is used to determine the PDCCH monitoring occasion for listening to multicast scheduling information. And / or, whether the PDCCH monitoring occasion configured by the network for multicast scheduling is the same as that of RMSI.

[1297] For the monitoring time slot and / or monitoring time symbol indicating a PDCCH monitoring occasion for a multicast message in the form of a bitmap, for example, if a

[1298] Monitoring-periodicity-PDCCH-slot is 2, and in each slot, there are 8 PDCCH monitoring occasions (MO). Specifically, the starting OFDM time symbol and which specific symbols need to be monitored can be defined by RRC, such as 0011110111100000111101111000, then symbols #2, 3, 4, 5; #7, 8, 9, 10 need to be monitored;

[1299] Or:

[1300] If a Monitoring-periodicity-PDCCH-slot is 2, and in each slot, there are 4 PDCCH monitoring occasions. In the first slot that needs to be monitored, the symbols are #2, 3, 4, 5; in the second slot that needs to be monitored, the symbols are #7, 8, 9, 10. Specifically, the starting OFDM time symbol and which specific symbols need to be monitored can be defined by RRC, such as 0011110000000000000001111000).

[1301] Optionally, the method further includes:

[1302] Determine the multicast scheduling radio frame (MF), where MF is a system frame that contains one or more MOs or the starting points of MOs.

[1303] A multicast scheduling radio frame (MF) is a system frame that can contain one or more MOs or the starting points of MOs.

[1304] Optionally, the method includes:

[1305] Select one or more beams for receiving multicast scheduling information.

[1306] Associate with beam information: SSB / CSI-RS.

[1307] In multi-beam operation, the UE may assume that the same multicast scheduling message is repeated in all transmitted beams. Therefore, the UE can select one or more beams for receiving the multicast scheduling message.

[1308] Optionally, the timing of a multicast message is the monitoring timing of the PDCCH of Y multicast messages, where Y is determined according to the actual number of SSBs transmitted by the cell.

[1309] The MO is a set of Y consecutive PDCCH monitoring occasions, where Y is determined according to the actual number of SSBs transmitted by the cell.

[1310] Optionally, the timing of a multicast message is the monitoring timing of the PDCCH of a set of multicast messages, including:

[1311] The Z-th PDCCH monitoring occasion in the timing of the multicast message corresponds to the Z-th transmitted SSB, where Z is a positive integer.

[1312] Among them, the Z-th PDCCH monitoring occasion, that is, the timing of a multicast message, is composed of the monitoring occasions of the PDCCH of Y multicast messages. Then the Z-th PDCCH monitoring occasion is the Z-th PDCCH monitoring occasion among the monitoring occasions of the PDCCH of these Y multicast messages.

[1313] Please refer to Figure 7a , Figure 7a which is a schematic flowchart of a method for sending information provided by an embodiment of the present invention. The method is applied to a network-side device and includes the following steps:

[1314] Step 701: Send multicast information on the monitoring occasion of the physical downlink control channel (PDCCH) of one or more multicast messages;

[1315] Among them, the monitoring occasion of the PDCCH of a multicast message includes at least one time slot;

[1316] Among them, each time slot included in the monitoring occasion of the PDCCH of a multicast message includes at least one time symbol;

[1317] Among them, the multicast information includes at least one of the following:

[1318] DCI for the network to schedule multicast services;

[1319] DCI for the configuration information of the network to schedule multicast services;

[1320] DCI for the information of the control channel of the multicast service;

[1321] DCI for the information of the control channel of the network to schedule multicast services;

[1322] DCI for scheduling information of the control channel information of the multicast service;

[1323] DCI for the network to schedule the update information of the control channel of the multicast service;

[1324] DCI for the update information of the control channel of the multicast service;

[1325] DCI for the scheduling information of the update information of the control channel of the multicast service.

[1326] Optionally, sending the multicast information on the monitoring occasion of the physical downlink control channel PDCCH of one or more multicast messages includes:

[1327] Associating the monitoring occasion of the PDCCH associated with the multicast message with the search space or the set of search spaces of the corresponding multicast message;

[1328] Configuring the search space of the multicast message by at least one of the following methods:

[1329] Information on the common search space set of the Nth type of PDCCH for the search space configuration of the multicast message in the PDCCH common configuration configured by the radio resource control RRC message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell for the cyclic redundancy check code CRC;

[1330] The search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[1331] Wherein, the information on the common search space set of the Nth type of PDCCH, and / or the information on the search space identified as the common type, includes at least one of the following information:

[1332] Search space label;

[1333] The first indication information, used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for the multicast message;

[1334] The second indication information, used to indicate the monitoring period and time offset of a PDCCH monitoring occasion for the multicast message;

[1335] The third indication information, used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for the multicast message;

[1336] The fourth indication information, indicating the monitoring time slot and / or monitoring time symbol of a PDCCH monitoring occasion for the multicast message in the form of a bitmap;

[1337] The fifth indication information indicates, in the form of a bitmap, the listening time symbols in a time slot of a PDCCH listening occasion for a multicast message.

[1338] The sixth indication information is used to indicate the starting symbol and / or the duration of a time slot of a PDCCH listening occasion for a multicast message.

[1339] The seventh indication information is used to indicate the index of the control resource set associated with this search space.

[1340] Optionally, the PDCCH listening occasions of one or more multicast messages form a multicast message occasion.

[1341] Optionally, the method further includes:

[1342] Determining a multicast scheduling radio frame, where MF is a system frame that includes a starting point of one or more MOs or MOs.

[1343] Optionally, the method includes:

[1344] Selecting one or more beams for transmitting multicast scheduling information.

[1345] Optionally, a multicast message occasion is the PDCCH listening occasions of Y multicast messages, where Y is determined according to the number of actually transmitted SSBs in the cell.

[1346] Optionally, a multicast message occasion is the PDCCH listening occasions of a group of multicast messages, including:

[1347] The Z-th PDCCH listening occasion in the multicast message occasion corresponds to the Z-th transmitted SSB, where Z is a positive integer.

[1348] Please refer to Figure 7b , Figure 7b is a schematic flowchart of a method for receiving information provided by an embodiment of the present invention. This method is applied to a terminal and includes the following steps:

[1349] Step 711: Determine the PDCCH listening occasions of one or more multicast messages, and receive multicast information on the multicast message occasion;

[1350] wherein, the PDCCH listening occasion of a multicast message includes at least one time slot;

[1351] wherein, each time slot included in the PDCCH listening occasion of a multicast message includes at least one time symbol;

[1352] wherein, the multicast information includes at least one of the following:

[1353] DCI for network-scheduled multicast services;

[1354] DCI for configuration information of network-scheduled multicast services;

[1355] DCI for information of the control channel of multicast services;

[1356] DCI for information of the control channel of network-scheduled multicast services;

[1357] DCI for scheduling information of information of the control channel of multicast services;

[1358] DCI for update information of the control channel of network-scheduled multicast services;

[1359] DCI for update information of the control channel of multicast services;

[1360] DCI for scheduling information of update information of the control channel of multicast services.

[1361] In the present invention, the "receiving" in "determining the monitoring occasion of the physical downlink control channel PDCCH for one or more multicast messages and receiving multicast information on the monitoring occasion of the physical downlink control channel PDCCH for multicast messages" also means "monitoring" or "detecting".

[1362] In an embodiment of the present invention, regarding the monitoring occasion of the PDCCH for monitoring multicast scheduling information and / or multicast service information, especially for terminals in the idle state and the connected state, the common search space is used to receive the multicast scheduling information and / or multicast service information. The terminal only needs to wake up to monitor the PDCCH and the corresponding PDSCH in the corresponding scheduling time slot, without continuously monitoring the PDCCH with the multicast RNTI, reducing power consumption.

[1363] Determining the monitoring occasion of the PDCCH for multicast messages according to the search space for multicast messages or the set of search spaces for multicast messages;

[1364] Determining the search space for multicast messages by at least one of the following methods:

[1365] The UE reads the information of the common search space set of the Nth type of PDCCH configured for the search space for multicast messages from the PDCCH common configuration configured by the network through the RRC message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI for cyclic redundancy check (CRC) on the primary cell;

[1366] The UE reads the search space labeled as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format that is CRC scrambled by the multicast-RNTI on the primary cell;

[1367] If the UE does not find the information of the common search space set of the Nth type of PDCCH configured for the multicast message search space configuration in the RRC message, the association relationship between the PDCCH monitoring occasion of the common search space set of the Nth type of PDCCH and the SSB block index is the same as the association relationship of the PDCCH monitoring occasion of the common search space of type 0;

[1368] Find out the CCE aggregation level in the common search space set of the Nth type of PDCCH and the number of PDCCH candidates for each CCE aggregation level by looking up the table;

[1369] Among them, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space labeled as the common type, includes at least one of the following information:

[1370] Search space label;

[1371] The first indication information, which is used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for the multicast message;

[1372] The second indication information, which is used to indicate the monitoring period and time offset of a PDCCH monitoring occasion for the multicast message;

[1373] The third indication information, which is used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for the multicast message;

[1374] The fourth indication information, which indicates the monitoring time slot and / or monitoring time symbol of a PDCCH monitoring occasion for the multicast message in the form of a bitmap;

[1375] The fifth indication information, which indicates the monitoring time symbol in a time slot of a PDCCH monitoring occasion for the multicast message in the form of a bitmap;

[1376] The sixth indication information, which is used to indicate the start symbol and / or duration of a time slot of a PDCCH monitoring occasion for the multicast message;

[1377] The seventh indication information, which is used to indicate the index of the control resource set associated with this search space.

[1378] A set of PDCCH candidates to be monitored by a terminal is defined according to a PDCCH search space set, and the search space set can be a common search space set or a terminal-specific search space set. The terminal monitors PDCCH candidates in one or more of the following search space sets. Add a common search space set of TypeN-PDCCH with X-SearchSpace configuration in PDCCH-ConfigCommon (PDCCH common configuration); wherein, this common search space is used for the DCI format configuration of the CRC scrambled by the multicast-RNTI on the primary cell.

[1379] If the higher layer parameter MB-SearchSpace for the Type x-PDCCH common search space set is not provided to the UE, the association relationship between the PDCCH monitoring occasion and the SS / PBCH block index for the Type X-PDCCH common search space set is the same as the association for the TYPE0-PDCCH common monitoring occasion. Set the TYPE0-PDCCH common search space. The control channel element (CCE) aggregation level in the X-PDCCH common search space set and the number of PDCCH candidates for each CCE aggregation level can be found by looking up a table.

[1380] According to the first PDCCH monitoring occasion configured by the protocol-specified X-SearchSpace and RRC signaling, it is used to determine the PDCCH monitoring occasion for monitoring multicast scheduling information. And / or, the network configures whether the PDCCH monitoring occasion for multicast scheduling is the same as that of RMSI.

[1381] For the monitoring time slot and / or monitoring time symbol indicating a PDCCH monitoring occasion for a multicast message in the form of a bitmap, for example, if a

[1382] The Monitoring-periodicity-PDCCH-slot is 2. In each slot, there are 8 PDCCH monitoring occasions (MO). Specifically, the starting OFDM time symbol and which specific symbols need to be monitored can be defined by RRC, such as 0011110111100000111101111000, then symbols #2, 3, 4, 5; #7, 8, 9, 10 need to be monitored;

[1383] Or:

[1384] If a Monitoring-periodicity-PDCCH-slot is 2, in each slot, there are 4 PDCCH monitoring occasions. In the first slot that needs to be monitored, the symbols are #2, 3, 4, 5; in the second slot that needs to be monitored, the symbols are #7, 8, 9, 10. Specifically, the starting OFDM time symbol and which specific symbols need to be monitored can be defined by RRC, such as (0011110000000000000001111000).

[1385] Optionally, the method includes:

[1386] Select one or more beams for receiving multicast scheduling information.

[1387] Associated with beam information: SSB / CSI-RS.

[1388] In multi-beam operation, the UE can assume that the same multicast scheduling message is repeated in all transmitted beams. Therefore, the UE can select one or more beams for receiving the multicast scheduling message.

[1389] Optionally, the timing of a multicast message is the PDCCH monitoring timing of a group of multicast messages, including:

[1390] The timing of a multicast message is the PDCCH monitoring timing of Y multicast messages, where Y is determined according to the actual number of SSBs transmitted in the cell.

[1391] MO is a group of consecutive Y PDCCH monitoring occasions, where Y is determined according to the actual number of SSBs transmitted in the cell.

[1392] Optionally, the timing of a multicast message is the PDCCH monitoring timing of a group of multicast messages, including:

[1393] The Zth PDCCH monitoring occasion in the timing of the multicast message corresponds to the Zth transmitted SSB, where Z is a positive integer.

[1394] Please refer to Figure 8 , Figure 8 which is a schematic flowchart of a method for sending information provided by an embodiment of the present invention. This method is applied to a network-side device and includes the following steps:

[1395] Step 81: During the repetition period of the control information of the multicast service and / or the broadcast service, send n pieces of control information of the multicast service and / or the broadcast service to the terminal every t time domain units, where n and t are positive integers.

[1396] In the embodiments of the present invention, the control information of multiple multicast and / or broadcast services can be sent separately, so that the terminal can listen to the corresponding control information at the corresponding sending moment and does not need to receive the control information of all multicast and / or broadcast services.

[1397] In the prior art, all the control information of multicast and / or broadcast is sent in one MCCH. And all the scheduling information of multicast in the prior art is sent in one SC-MCCH. The embodiments of the present invention introduce multiple SC-MCCHs for multicast. The SC-MCCH information of multiple multicasts for network broadcast is generated by a distribution node (Distribute Unit, DU) and then sent to a centralized unit (Centralized Unit, CU) node for broadcasting; before generating the system information related to the SC-MCCH, the DU node needs to obtain from the CU information such as the TMGI, session identifier, interested UEs, and related quality of service (Quality of Service, QoS) related to the multicast service.

[1398] Optionally, before sending n control information of multicast service and / or broadcast service to the terminal every t time domain units within the repetition period of the control information of the multicast service and / or broadcast service, it further includes:

[1399] Sending first information to the terminal, where the first information is used to indicate a first sending time, and the first sending time is the sending time of the n control information of the multicast service and / or broadcast service within the corresponding time domain unit.

[1400] Optionally, the first information includes at least one of the following information:

[1401] Information used to indicate the start moment of the first sending time;

[1402] Information used to indicate the duration of the first sending time;

[1403] Information used to indicate a first offset, where the first offset is the offset between the first sending time and the position of the RMSI of the SSB.

[1404] Please refer to Figure 9 , Figure 9 which is a schematic flowchart of a method for receiving information provided by the embodiments of the present invention. The method is applied to a terminal and includes the following steps:

[1405] Step 91: Receiving n control information of multicast service and / or broadcast service sent by a network-side device every t time domain units within the repetition period of the control information of the multicast service and / or broadcast service, where n and t are positive integers.

[1406] In the prior art, all control information for multicast and / or broadcast is sent in one MCCH.

[1407] In an embodiment of the present invention, control information for multiple multicast and / or broadcast services can be sent separately, so that the terminal can listen for the corresponding control information at the corresponding sending moment, and does not need to receive the control information for all multicast and / or broadcast services.

[1408] Optionally, the n pieces of control information for multicast services and / or broadcast services sent by the receiving network-side device every t time domain units within the repetition period of the control information for multicast services and / or broadcast services include:

[1409] Obtain the time domain units corresponding to the control information for multicast services and / or broadcast services within the repetition period;

[1410] Listen for the corresponding control information for multicast services and / or broadcast services in the time domain units.

[1411] Optionally, the time domain unit is calculated according to the following formula:

[1412] SFN mod sc-mcch-RepetitionPeriod = sc-mcch-Offset +

[1413] (sc-mcch-RepetitionPeriod) divided by

[1414] SFN is the serial number of the time domain unit corresponding to the control information for the first multicast service and / or broadcast service, sc-mcch-RepetitionPeriod is the size of the repetition period, sc-mcch-Offset is the offset of the starting time domain unit of the first repetition period, M is the total number of pieces of control information for multicast services and / or broadcast services sent within the repetition period, group_ID is the serial number of the multicast service and / or broadcast service, and the group_ID is determined according to the sending order of the control information for the multicast service and / or broadcast service within the repetition period.

[1415] In an embodiment of the present invention, when the network-side device sends n pieces of control information for multicast services and / or broadcast services every t time domain units within the repetition period of the control information for multicast services and / or broadcast services, the terminal can deduce the time when the SC-MCCH of the corresponding group appears according to the ID numbers of different groups, and thus only receive at the time when the SC-MCCH appears, and can not receive at other times.

[1416] The time domain unit may be a radio frame.

[1417] Optionally, the n pieces of control information for multicast services and / or broadcast services sent by the receiving network-side device every t time domain units within the repetition period of the control information for multicast services and / or broadcast services include:

[1418] Receiving first information sent by the network-side device, where the first information is used to indicate a second transmission time, and the second transmission time is the transmission time of the n pieces of control information for multicast services and / or broadcast services within the corresponding time domain unit;

[1419] Receiving the n pieces of control information for multicast services and / or broadcast services at the second transmission time.

[1420] In an embodiment of the present invention, the terminal further obtains specific time slots and / or symbols in a radio frame that need to be monitored. A specific Monitoring-symbols-PDCCH-within-slot in a radio frame may indicate the first time symbol in a control resource set within a time slot for PDCCH monitoring.

[1421] If a Monitoring-periodicity-PDCCH-slot is 2, there are 8 PDCCH monitoring occasions (MO) in each slot. Specifically, the starting OFDM time symbol and specific symbols to be monitored can be defined by RRC, such as 0011110111100000111101111000, then symbols #2, 3, 4, 5; #7, 8, 9, 10 need to be monitored;

[1422] Or:

[1423] If a Monitoring-periodicity-PDCCH-slot is 2, there are 4 PDCCH monitoring occasions in each slot. The symbols in the first slot to be monitored are #2, 3, 4, 5; the symbols in the second slot to be monitored are #7, 8, 9, 10. Specifically, the starting OFDM time symbol and specific symbols to be monitored can be defined by RRC, such as

[1424] 0011110000000000000001111000).

[1425] Optionally, the first information includes at least one of the following information:

[1426] Information used to indicate the starting moment of the second transmission time;

[1427] Information for indicating the duration of the second transmission time

[1428] Information for indicating a first offset, where the first offset is the offset between the second transmission time and the position of the RMSI of the SSB

[1429] Specifically, a specific listening opportunity within a radio frame can be determined by defining a start symbol and a duration. Among them, the duration can be defined in CORESET-time-duration (control resource set duration). For example, the start symbols are #2 and #7, and the duration is 4 symbols. Alternatively, the position of the SC-MCCH can be deduced by defining the offset from the position of the RMSI of the SSB and based on the period and position information of the SSB sent by the RRC

[1430] Similarly, this method is also applicable to UEs in the idle state and the inactive state to read the SC-PTM information

[1431] Please refer to Figure 10 , Figure 10 which is a schematic flowchart of a resource configuration method provided by an embodiment of the present invention. This method is applied to a network-side device and includes the following steps

[1432] Step 101: Send configuration information to a terminal

[1433] Send configuration information to the terminal. The configuration information is used to indicate first symbol information and / or second symbol information in a time slot. The first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information

[1434] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol

[1435] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol

[1436] Optionally, the configuration information is further used to indicate that a reference signal is inserted every y symbols in the time slot; and / or, the configuration information is further used to indicate that a reference signal is inserted every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast

[1437] Optionally, the reference signal can be an SSB of a cell or a set of SSBs, or an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or

[1438] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[1439] Optionally, information about the reference signal needs to be exchanged between different network nodes;

[1440] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[1441] The unicast information includes at least one of the reference signal corresponding to the unicast, control signaling, and data;

[1442] The multicast information includes at least one of the reference signal corresponding to the multicast, control signaling, and data;

[1443] The broadcast information includes at least one of the reference signal corresponding to the broadcast, control signaling, and data;

[1444] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[1445] Currently in the MBMS system, the MCCH message can only be sent through a Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) subframe, and the MBSFN subframe is a dedicated subframe that can only send one data block. The UE can obtain the MCCH message by reading the MBSFN subframe at the corresponding time point. Since the MBSFN subframe can only transmit one data block, and one data block can be used to transmit the MCCH message or other data other than the MCCH message. However, if the MCCH message cannot occupy all the resources of the MBSFN subframe, no other data can be sent on the MBSFN subframe, resulting in waste of resources.

[1446] In addition, MBSFN is divided into two types: MBSFN on dedicated carriers and MBSFN on hybrid carriers with unicast. The design of MBSFN reference signals (RS) has special requirements. In a radio frame of a hybrid carrier MBSFN system, usually most resources are used for unicast services, and only individual subframes are used for MBSFN services. A typical scenario is that an isolated MBSFN subframe is inserted within consecutive unicast subframes, which makes it impossible for the terminal receiving this MBSFN subframe to perform interpolation channel estimation between the RSs of adjacent subframes as when receiving unicast signals. Therefore, the RS design of MBSFN must be able to support channel estimation within an isolated subframe. In the embodiments of the present invention, the present invention breaks through the method in LTE that uses the MBSFN subframe as the minimum design unit and adopts the MBSFN time slot as the minimum design unit. Because although 5G NR supports multiple subcarrier spacings, the lengths of the radio frame and subframe are the same under different subcarrier spacing configurations. The radio frame length is 10 ms, and the subframe length is 1 ms. The number of time slots included in each subframe is different. In the case of normal cyclic prefix (CP), the number of symbols included in each time slot is the same, and it is 14. That is to say, the number of time symbols included in a subframe of NR is different, but the number of time symbols included in each time slot is the same. Among the 14 time symbols, b time symbols are taken out to transmit unicast PDCCH, CSI-RS, and demodulation reference signal (DM-RS), and then 14 - b time symbols are used to transmit the reference signal, control channel, and data channel of MBMSFN. b can be determined according to the requirements of measurement accuracy, the bandwidth size of different frequency bands, and the multicast service load. Moreover, the positions of these b time symbols can be defined as fixed, such as the first b, the last b, or the middle b, or the specific positions can be indicated by signaling.

[1447]

[1448] When terminals in adjacent cells perform neighbor cell measurements, they can measure only the unicast reference signals of these b time symbols.

[1449] The first and second symbols in the MBSFN subframe adopt the normal CP and retain the unicast pilots, which can be used for the transmission of channels such as PDCCH, physical control format indicator channel (PCFICH), and physical hybrid ARQ indicator channel (PHICH). The other symbols in the subframe are used for MBSFN signal transmission.

[1450] On the other hand, according to a specific subcarrier spacing, an MBSFN reference signal (RS) is inserted every x subcarriers in the frequency domain, and 1 column of RS is inserted every y OFDM symbols in the time domain.

[1451] The measurement accuracy, SCS, and PRB width are different, resulting in different intervals for inserting RS under different SCSs. For a wider SCS interval, the density of RS is relatively sparse. Regarding the density of reference signals in subcarriers. The density of reference signals is also added in the time symbol aspect. RS can be used for demodulating channels in 5G MBMS.

[1452] Since multi-cell combination greatly increases the number of multipaths, making the frequency selectivity of MBSFN signals much greater than that of unicast signals, a greater RS frequency-domain density is required. However, the time symbol lengths for different subcarrier spacings are also different.

[1453] Therefore, x, y, and b all have corresponding relationships with the values of the subcarrier spacing;

[1454] This corresponding relationship can be determined in the form of a table;

[1455] Or, it is configured through RRC messages / MAC CE / PDCCH signaling;

[1456] Or, define a table of multiple corresponding relationships and corresponding index numbers, and then configure the index numbers through RRC messages / MAC CE / PDCCH signaling;

[1457] Or, configure a table of multiple corresponding relationships and corresponding index numbers in the RRC signaling, and then configure the index numbers through MAC CE / PDCCH signaling.

[1458] Please refer to Figure 11 , Figure 11 which is a schematic flowchart of a resource configuration method provided by an embodiment of the present invention. This method is applied to a terminal and includes the following steps:

[1459] Step 111: Receive configuration information sent by a network-side device,

[1460] and send the configuration information to the terminal. The configuration information is used to indicate first symbol information and / or second symbol information in a time slot. The first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information;

[1461] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[1462] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[1463] Optionally, the configuration information is further used to indicate that a reference signal is inserted in every y symbols in the time slot; and / or, the configuration information is further used to indicate that a reference signal is inserted in every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[1464] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or is an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[1465] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or is a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[1466] Optionally, information about the reference signal needs to be exchanged between different network nodes;

[1467] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[1468] The unicast information includes at least one of a reference signal corresponding to unicast, control signaling, and data;

[1469] The multicast information includes at least one of a reference signal corresponding to multicast, control signaling, and data;

[1470] The broadcast information includes at least one of a reference signal corresponding to broadcast, control signaling, and data;

[1471] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[1472] Please refer to Figure 12 , Figure 12 is a schematic flowchart of an information measurement method provided by an embodiment of the present invention. This method is applied to a terminal and includes the following steps:

[1473] Step 121: Receive resource configuration information sent by a network-side device, where the resource configuration information is resource configuration information for multicast services and / or broadcast services of an adjacent cell;

[1474] Step 122: Measure or not measure the resources corresponding to the resource configuration information.

[1475] In an embodiment of the present invention, the base station and / or cell exchange the configuration information of MBSFN; or the base station and / or cell obtain the configuration information of the MBSFN of the neighboring cell from the network management. Then, the base station and / or cell inform the terminal of the configuration information of the MBSFN of the neighboring cell through signaling, so that there is no need to send unicast signal and channel information on the unit resource block of MBSFN. When measuring the signal quality of the neighboring cell, the terminal ignores this MBSFN resource, or, if the terminal has an MBMS service, only measures the MBSFN resource.

[1476] Optionally, the resource corresponding to the measurement or non-measurement of the resource configuration information includes:

[1477] If the terminal only has a unicast service, it does not measure the resource corresponding to the resource configuration information;

[1478] If the terminal only has a multicast service and / or a broadcast service, it measures the resource corresponding to the resource configuration information;

[1479] If the terminal has both a unicast service and a multicast service and / or a broadcast service, it measures the resource corresponding to the resource configuration information.

[1480] In an embodiment of the present invention, the terminal can measure the corresponding MBSFN resource for a specific MBMS service. If the UE has a unicast service, the UE ignores this MBSFN resource when measuring the signal quality of the neighboring cell. If the UE has both a unicast service and an MBMS service, it reports the measurement information of the two types of resources respectively.

[1481] Configure the unicast service on a dedicated active BWP, configure the multicast service on the initial BWP or a BWP related to the initial BWP, and indicate the association relationship between the BWP for sending the multicast service and the initial BWP in the system message, such as the offset relationship on Corset and Searchspace.

[1482] Please refer to Figure 13 , Figure 13 which is a schematic structural diagram of a network-side device provided by an embodiment of the present invention. The network-side device 130 includes:

[1483] A first DCI sending module 131, configured to send a first DCI scrambled with a first RNTI to the terminal, where the first DCI is used to indicate whether the control information of a multicast service and / or a broadcast service is updated or updated-related information;

[1484] Wherein, the control information includes the configuration information of the multicast service and / or the broadcast service.

[1485] Optionally, the configuration information of the multicast service and / or broadcast service includes at least one of the following items:

[1486] A list of TMGIs;

[1487] The Session ID corresponding to the TMGI in the list of TMGIs;

[1488] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[1489] The BWP corresponding to the TMGI in the list of TMGIs;

[1490] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[1491] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1492] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1493] The uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1494] The uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[1495] Optionally, the first DCI is used to indicate at least one of the following items:

[1496] The control information of the multicast service and / or broadcast service has changed;

[1497] Whether the control information of the multicast service and / or broadcast service has changed;

[1498] The changed control information of the multicast service and / or broadcast service;

[1499] The type of the changed control information of the multicast service and / or broadcast service;

[1500] The resource information for reading the changed control information of the multicast service and / or broadcast service.

[1501] Optionally, when the first DCI is used to indicate that the control information of the multicast service and / or broadcast service has changed, the first DCI is further used to indicate at least one of the following items:

[1502] The configuration information of the multicast service and / or broadcast service has changed;

[1503] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode (i.e., the MBMS transmission mode);

[1504] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1505] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1506] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1507] The multicast or broadcast service in which the control information of the multicast service and / or broadcast service changes;

[1508] A new group of multicast services and / or broadcast services is added;

[1509] An existing group of multicast services and / or broadcast services is deleted;

[1510] An existing group of multicast services and / or broadcast services is updated;

[1511] The HARQ feedback of the multicast service and / or broadcast service is closed or enabled;

[1512] The CSI feedback of the multicast service and / or broadcast service is enabled or closed.

[1513] Optionally, the first DCI is used to indicate at least one of the following:

[1514] The configuration information of the multicast service and / or broadcast service changes;

[1515] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1516] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1517] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1518] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1519] The multicast or broadcast service whose control information for the multicast service and / or broadcast service has changed;

[1520] A group that has added a new multicast service and / or broadcast service;

[1521] A group that has deleted an existing multicast service and / or broadcast service;

[1522] A group that has updated an existing multicast service and / or broadcast service;

[1523] Turn on or off the HARQ feedback for the multicast service and / or broadcast service;

[1524] Turn on or off the CSI feedback for the multicast service and / or broadcast service.

[1525] Optionally, the network-side device further includes:

[1526] A change information sending module, configured to send the change information of the control information of the multicast service and / or broadcast service when the first DCI includes information indicating that the control information of the multicast service and / or broadcast service has changed, and / or:

[1527] In the case of including information indicating that the control information resource for the multicast service and / or broadcast service carries change information, send the change information of the control information of the multicast service and / or broadcast service.

[1528] Optionally, the network-side device further includes:

[1529] A first broadcast module, configured to broadcast each piece of control information of the multiple multicast services and / or broadcast services; or,

[1530] A second broadcast module, configured to broadcast the control information of the first multicast service and / or broadcast service among the multiple multicast services and / or broadcast services, and the control information of the other multicast services and / or broadcast services among the multiple multicast services and / or broadcast services is the same as the control information of the first multicast service and / or broadcast service;

[1531] Wherein, the control information includes at least one of a repetition period, an offset, a start subframe, and a modification period.

[1532] Please refer to Figure 14 , Figure 14 which is a schematic structural diagram of a network-side device provided by an embodiment of the present invention. The network-side device 140 includes:

[1533] The second DCI sending module 141 is configured to send a second DCI scrambled by a second RNTI to a terminal, where the second DCI is used to indicate whether control information of a multicast service and / or a broadcast service set is updated or updated-related information;

[1534] Wherein, the control information includes configuration information of the multicast service and / or the broadcast service.

[1535] Optionally, the configuration information of the multicast service and / or the broadcast service includes at least one of the following items:

[1536] A list of TMGIs;

[1537] The Session ID corresponding to the TMGI in the list of TMGIs;

[1538] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[1539] The BWP corresponding to the TMGI in the list of TMGIs;

[1540] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[1541] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1542] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1543] The uplink resource configuration of HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1544] The uplink resource configuration of CSI reporting corresponding to the TMGI in the list of TMGIs.

[1545] Optionally, the first DCI is used to indicate at least one of the following items:

[1546] The control information of the multicast service and / or the broadcast service has changed;

[1547] Whether the control information of the multicast service and / or the broadcast service has changed;

[1548] The changed control information of the multicast service and / or the broadcast service;

[1549] The type of the changed control information of the multicast service and / or the broadcast service;

[1550] The resource information for reading the changed control information of the multicast service and / or the broadcast service.

[1551] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[1552] the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or broadcast area.

[1553] Optionally, the second DCI is used to indicate at least one of the following:

[1554] the control information of the set of one or more multicast services and / or broadcast services has changed;

[1555] whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[1556] the changed control information of the set of one or more multicast services and / or broadcast services;

[1557] the type of the changed control information of the set of one or more multicast services and / or broadcast services;

[1558] resource information for reading the changed control information of the set of one or more multicast services and / or broadcast services.

[1559] Optionally, when the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following:

[1560] the configuration information of the set of multicast services and / or broadcast services has changed;

[1561] the transmission mode of the set of multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1562] the transmission mode of the set of multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1563] the transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1564] the transmission mode of the set of multicast services and / or broadcast services changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1565] the multicast or broadcast service for which the control information of the set of multicast services and / or broadcast services has changed;

[1566] A group with new multicast service and / or broadcast service is added;

[1567] A group with existing multicast service and / or broadcast service is deleted;

[1568] A group with existing multicast service and / or broadcast service is updated;

[1569] Turn on or off the HARQ feedback for the multicast service and / or broadcast service set;

[1570] Turn on or off the CSI feedback for the multicast service and / or broadcast service set.

[1571] Optionally, the second DCI is used to indicate at least one of the following:

[1572] The configuration information of the multicast service and / or broadcast service set changes;

[1573] The transmission mode of the multicast service and / or broadcast service set changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1574] The transmission mode of the multicast service and / or broadcast service set changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1575] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1576] The transmission mode of the multicast service and / or broadcast service set changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1577] The multicast or broadcast service with the control information of the multicast service and / or broadcast service set changed;

[1578] A group with new multicast service and / or broadcast service is added;

[1579] A group with existing multicast service and / or broadcast service is deleted;

[1580] A group with existing multicast service and / or broadcast service is updated;

[1581] Turn on or off the HARQ feedback for the multicast service and / or broadcast service set;

[1582] Turn on or off the CSI feedback for the multicast service and / or broadcast service set.

[1583] Optionally, the second DCI is used to indicate the following:

[1584] The identification information of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services.

[1585] Optionally, the second DCI is further used to indicate at least one of the following:

[1586] The configuration information of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services has changed;

[1587] The transmission mode of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[1588] The transmission mode of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[1589] The transmission mode of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[1590] The transmission mode of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[1591] The multicast or broadcast service in which the control information of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services has changed;

[1592] A group to which a new multicast service and / or broadcast service is added;

[1593] A group of existing multicast services and / or broadcast services that is deleted;

[1594] A group of existing multicast services and / or broadcast services that is updated;

[1595] Turn on or off the HARQ feedback of some of the multicast services and / or broadcast services in the set of multicast services and / or broadcast services;

[1596] Turn on or off the CSI feedback of some of the multicast services and / or broadcast services in the set of multicast services and / or broadcast services.

[1597] Optionally, the network-side device further includes:

[1598] A change information sending module, configured to, when the first DCI includes information for indicating that the control information of the multicast service and / or broadcast service has changed, and / or:

[1599] When there is information carrying change information of a control information resource for indicating a multicast service and / or a broadcast service, send change information of the control information of the multicast service and / or the broadcast service.

[1600] Optionally, the network-side device further includes:

[1601] A first broadcast module, configured to broadcast each piece of control information of a plurality of multicast services and / or broadcast services; or,

[1602] A second broadcast module, configured to broadcast control information of a first multicast service and / or broadcast service among control information of a plurality of multicast services and / or broadcast services, and control information of other multicast services and / or broadcast services among the control information of the plurality of multicast services and / or broadcast services is the same as the control information of the first multicast service and / or broadcast service;

[1603] Wherein, the control information includes at least one of a repetition period, an offset, a start subframe, and a modification period.

[1604] Please refer to Figure 15 , Figure 15 is a schematic structural diagram of a terminal provided in an embodiment of the present invention. The terminal 150 includes:

[1605] A first DCI receiving module 151, configured to receive a first DCI scrambled with a first RNTI sent by a network-side device, where the first DCI is used to indicate whether control information of a multicast service and / or a broadcast service is updated or update-related information;

[1606] Wherein, the control information includes configuration information of a multicast service and / or a broadcast service.

[1607] Optionally, the configuration information of the one multicast service and / or broadcast service includes at least one of the following:

[1608] A list of TMGIs;

[1609] A Session ID corresponding to a TMGI in the list of TMGIs;

[1610] A G-RNTI corresponding to a TMGI in the list of TMGIs;

[1611] A BWP corresponding to a TMGI in the list of TMGIs;

[1612] A subcarrier spacing corresponding to a TMGI in the list of TMGIs;

[1613] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1614] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1615] The uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1616] The uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[1617] Optionally, the first DCI is used to indicate at least one of the following:

[1618] The control information for multicast services and / or broadcast services has changed;

[1619] Whether the control information for multicast services and / or broadcast services has changed;

[1620] The changed control information for the multicast services and / or broadcast services;

[1621] The type of the changed control information for the multicast services and / or broadcast services;

[1622] The resource information for reading the changed control information for the multicast services and / or broadcast services.

[1623] Optionally, in the case where the first DCI is used to indicate that the control information for multicast services and / or broadcast services has changed, the first DCI is further used to indicate at least one of the following:

[1624] The configuration information for the multicast services and / or broadcast services has changed;

[1625] The transmission mode of the multicast services and / or broadcast services changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1626] The transmission mode of the multicast services and / or broadcast services changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1627] The transmission mode of the multicast services and / or broadcast services changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1628] The transmission mode of the multicast services and / or broadcast services changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1629] The multicast or broadcast service for which the control information of the multicast services and / or broadcast services has changed;

[1630] A group with new multicast services and / or broadcast services added;

[1631] A group with existing multicast services and / or broadcast services deleted;

[1632] A group with existing multicast services and / or broadcast services updated;

[1633] Close or open the HARQ feedback for the multicast service and / or broadcast service;

[1634] Open or close the CSI feedback for the multicast service and / or broadcast service.

[1635] Optionally, the first DCI is used to indicate at least one of the following:

[1636] The configuration information of the multicast service and / or broadcast service has changed;

[1637] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1638] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1639] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1640] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1641] The multicast or broadcast service with the control information of the multicast service and / or broadcast service changed;

[1642] A group with new multicast services and / or broadcast services added;

[1643] A group with existing multicast services and / or broadcast services deleted;

[1644] A group with existing multicast services and / or broadcast services updated;

[1645] Close or open the HARQ feedback for the multicast service and / or broadcast service;

[1646] Open or close the CSI feedback for the multicast service and / or broadcast service.

[1647] Optionally, the terminal further includes:

[1648] A change information receiving module, configured to, when the first DCI includes information indicating a change in control information for multicast service and / or broadcast service, and / or:

[1649] in a case where the control information resource for multicast service and / or broadcast service includes information carrying change information, receive the change information of the control information for the multicast service and / or broadcast service.

[1650] Please refer to Figure 16 , Figure 16 which is a schematic structural diagram of a terminal provided by an embodiment of the present invention. The terminal 160 includes:

[1651] A second DCI receiving module 161, configured to receive a second DCI scrambled by a second RNTI sent by a network side device, where the second DCI is used to indicate whether control information for a set of multicast services and / or broadcast services is updated or updated-related information;

[1652] wherein the control information includes configuration information for multicast service and / or broadcast service.

[1653] Optionally, the configuration information for the set of multicast services and / or broadcast services includes at least one of the following items:

[1654] A list of TMGIs;

[1655] The Session ID corresponding to the TMGI in the list of TMGIs;

[1656] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[1657] The BWP corresponding to the TMGI in the list of TMGIs;

[1658] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[1659] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1660] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1661] The uplink resource configuration for HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1662] The uplink resource configuration for CSI reporting corresponding to the TMGI in the list of TMGIs.

[1663] Optionally, the set of multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services in a cell; and / or,

[1664] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or a broadcast area.

[1665] Optionally, the second DCI is used to indicate at least one of the following items:

[1666] The control information of the set of one or more multicast services and / or broadcast services has changed;

[1667] Whether the control information of the set of one or more multicast services and / or broadcast services has changed;

[1668] The control information of the set of one or more multicast services and / or broadcast services that has changed;

[1669] The type of the control information of the set of one or more multicast services and / or broadcast services that has changed;

[1670] Read the resource information of the control information of the set of one or more multicast services and / or broadcast services that has changed.

[1671] Optionally, when the second DCI is used to indicate that the control information of the set of one or more multicast services and / or broadcast services has changed, the second DCI is further used to indicate at least one of the following items:

[1672] The configuration information of the set of multicast services and / or broadcast services has changed;

[1673] The transmission mode of the set of multicast services and / or broadcast services changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[1674] The transmission mode of the set of multicast services and / or broadcast services changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[1675] The transmission mode of the set of multicast services and / or broadcast services changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[1676] The transmission mode of the set of multicast services and / or broadcast services changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[1677] The multicast or broadcast service for which the control information of the set of multicast services and / or broadcast services has changed;

[1678] The group to which new multicast services and / or broadcast services are added;

[1679] The group from which existing multicast services and / or broadcast services are deleted;

[1680] Updated the group of existing multicast services and / or broadcast services;

[1681] Closed or enabled HARQ feedback for the set of multicast services and / or broadcast services;

[1682] Enabled or disabled CSI feedback for the set of multicast services and / or broadcast services.

[1683] Optionally, the second DCI is used to indicate at least one of the following:

[1684] The configuration information of the set of multicast services and / or broadcast services has changed;

[1685] The transmission mode of the set of multicast services and / or broadcast services has changed from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1686] The transmission mode of the set of multicast services and / or broadcast services has changed from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1687] The transmission mode of the set of multicast services and / or broadcast services has changed from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1688] The transmission mode of the set of multicast services and / or broadcast services has changed from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1689] The multicast or broadcast service for which the control information of the set of multicast services and / or broadcast services has changed;

[1690] Added a group of new multicast services and / or broadcast services;

[1691] Deleted the group of existing multicast services and / or broadcast services;

[1692] Updated the group of existing multicast services and / or broadcast services;

[1693] Closed or enabled HARQ feedback for the set of multicast services and / or broadcast services;

[1694] Enabled or disabled CSI feedback for the set of multicast services and / or broadcast services.

[1695] Optionally, the second DCI is used to indicate the following:

[1696] The identification information of the changed multicast service and / or broadcast service in the set of multicast services and / or broadcast services.

[1697] Optionally, the second DCI is further used to indicate at least one of the following:

[1698] The configuration information of the changed multicast service and / or broadcast service in the set of the multicast service and / or broadcast service changes;

[1699] The transmission mode of the changed multicast service and / or broadcast service in the set of the multicast service and / or broadcast service changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[1700] The transmission mode of the changed multicast service and / or broadcast service in the set of the multicast service and / or broadcast service changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[1701] The transmission mode of the changed multicast service and / or broadcast service in the set of the multicast service and / or broadcast service changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[1702] The transmission mode of the changed multicast service and / or broadcast service in the set of the multicast service and / or broadcast service changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[1703] The multicast or broadcast service in which the control information of the changed multicast service and / or broadcast service in the set of the multicast service and / or broadcast service changes;

[1704] A group to which a new multicast service and / or broadcast service is added;

[1705] A group of the existing multicast service and / or broadcast service is deleted;

[1706] A group of the existing multicast service and / or broadcast service is updated;

[1707] Close or open the HARQ feedback of some of the multicast services and / or broadcast services in the set of the multicast service and / or broadcast service;

[1708] Open or close the CSI feedback of some of the multicast services and / or broadcast services in the set of the multicast service and / or broadcast service.

[1709] Optionally, the terminal further includes:

[1710] A change information receiving module, configured to, when the second DCI includes information for indicating that the control information of the multicast service and / or broadcast service changes, and / or:

[1711] In the case of including information for indicating that the control information resource of the multicast service and / or broadcast service carries change information, receive the change information of the control information of the multicast service and / or broadcast service.

[1712] Please refer to Figure 17 , Figure 17 which is a schematic structural diagram of a network - side device provided by an embodiment of the present invention. The network - side device 170 includes:

[1713] A control - information configuration module 171, configured to configure a set of control information for m multicast services and / or broadcast services;

[1714] In the cell where the m multicast services and / or broadcast services are located, there are n multicast services and / or broadcast services in the multicast area and / or broadcast area;

[1715] A total of k sets of control information for the n multicast services and / or broadcast services are configured;

[1716] m, n, and k are natural numbers greater than or equal to 1, m is less than or equal to n, and k is less than or equal to n.

[1717] Optionally, the network - side device further includes:

[1718] A configuration module, configured to configure at least one of a repetition period, a change period, and a start offset for the transmission of each of the k sets of control information for the multicast services and / or broadcast services;

[1719] At least one of the repetition period, the change period, and the start offset of the k sets of control information for the multicast services and / or broadcast services is the same or different.

[1720] Optionally, the network - side device further includes:

[1721] A control - information sending module, configured to send the control information of the n multicast services and / or broadcast services to the terminal every t time - domain units within the repetition period of the control information of the multicast services and / or broadcast services, where n and t are positive integers.

[1722] Optionally, the network - side device further includes:

[1723] A first - information sending module, configured to send first information to the terminal, where the first information is used to indicate a first sending time, and the first sending time is the sending time of the control information of the n multicast services and / or broadcast services within the corresponding time - domain unit.

[1724] Optionally, the first information includes at least one of the following information:

[1725] Information for indicating the start moment of the first sending time;

[1726] Information for indicating the duration of the first sending time;

[1727] Information for indicating a first offset, where the first offset is an offset between the first transmission time and the position of the RMSI of the SSB.

[1728] Please refer to Figure 18 , Figure 18 which is a schematic structural diagram of a terminal provided by an embodiment of the present invention. The terminal 180 includes:

[1729] A reception occasion determination module 181, configured to determine the monitoring occasion of the physical downlink control channel PDCCH of one or more multicast messages.

[1730] An information reception module 182, configured to receive multicast information at the monitoring occasion of the physical downlink control channel PDCCH of the multicast message.

[1731] Wherein, the occasion of one multicast message is the monitoring occasion of the PDCCH of a group of multicast messages.

[1732] Wherein, the monitoring occasion of the PDCCH of one multicast message includes at least one time slot.

[1733] Wherein, each time slot included in the monitoring occasion of the PDCCH of one multicast message includes at least one time symbol.

[1734] Wherein, the multicast information includes at least one of the following:

[1735] DCI for the network to schedule multicast services;

[1736] DCI for the configuration information of the network to schedule multicast services;

[1737] DCI for the information of the control channel of the multicast service;

[1738] DCI for the information of the control channel of the network to schedule multicast services;

[1739] DCI for the scheduling information of the information of the control channel of the multicast service;

[1740] DCI for the update information of the control channel of the network to schedule multicast services;

[1741] DCI for the update information of the control channel of the multicast service;

[1742] DCI for the scheduling information of the update information of the control channel of the multicast service.

[1743] Optionally, the reception occasion determination module is configured to determine the monitoring occasion of the PDCCH of the multicast message according to the search space of the multicast message or the set of search spaces of the multicast message.

[1744] The search space of the multicast message is determined by at least one of the following methods:

[1745] The UE reads the information of the common search space set of the Nth type of PDCCH configured by the search space configuration for multicast messages in the PDCCH common configuration configured by the network through the RRC message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[1746] The UE reads the search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell;

[1747] If the UE does not find the information of the common search space set of the Nth type of PDCCH configured by the search space configuration for multicast messages in the RRC message, the association relationship between the PDCCH monitoring occasion of the common search space set of the Nth type of PDCCH and the SSB block index is the same as the association relationship of the PDCCH monitoring occasion of the PDCCH common search space of type 0;

[1748] Find out the CCE aggregation level in the common search space set of the Nth type of PDCCH and the number of PDCCH candidates for each CCE aggregation level by looking up the table;

[1749] Wherein, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space identified as the common type, includes at least one of the following information:

[1750] Search space label;

[1751] The first indication information, used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for multicast messages;

[1752] The second indication information, used to indicate the monitoring period and time offset in a PDCCH monitoring occasion for multicast messages;

[1753] The third indication information, used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for multicast messages;

[1754] The fourth indication information, indicating the monitoring time slot and / or monitoring time symbol in a PDCCH monitoring occasion for multicast messages in the form of a bitmap;

[1755] The fifth indication information, indicating the monitoring time symbol in a time slot of a PDCCH monitoring occasion for multicast messages in the form of a bitmap;

[1756] Sixth indication information for indicating the start symbol and / or duration of a time slot in a PDCCH monitoring occasion for a multicast message;

[1757] Seventh indication information for indicating the index of the control resource set associated with this search space.

[1758] Optionally, the monitoring occasions of the PDCCHs of one or more multicast messages form a multicast message occasion.

[1759] Optionally, it further includes:

[1760] A wireless frame determination module for determining a multicast scheduling wireless frame, where MF is a system frame containing the start point of one or more MOs or MOs.

[1761] Optionally, it further includes:

[1762] A beam selection module for selecting one or more beams for receiving multicast scheduling information.

[1763] Optionally, a multicast message occasion is the monitoring occasions of the PDCCHs of Y multicast messages, where Y is determined according to the actual number of SSBs sent by the cell.

[1764] Optionally, a multicast message occasion is a set of monitoring occasions of the PDCCHs of a group of multicast messages,

[1765] where the Z-th PDCCH monitoring occasion in the multicast message occasion corresponds to the Z-th sent SSB, and Z is a positive integer.

[1766] Please refer to Figure 18a , Figure 18a which is a schematic structural diagram of a network-side device provided by an embodiment of the present invention. The network-side device 1800 includes:

[1767] A multicast information sending module 1801 for sending multicast information on the monitoring occasions of the physical downlink control channels PDCCHs of one or more multicast messages;

[1768] where the monitoring occasion of the PDCCH of a multicast message includes at least one time slot;

[1769] where each time slot included in the monitoring occasion of the PDCCH of a multicast message includes at least one time symbol;

[1770] where the multicast information includes at least one of the following:

[1771] DCI for the network to schedule multicast services;

[1772] DCI for the configuration information of the network to schedule multicast services;

[1773] DCI for information of the control channel of the multicast service

[1774] DCI for information of the control channel for the network to schedule the multicast service

[1775] DCI for scheduling information of the information of the control channel of the multicast service

[1776] DCI for update information of the control channel for the network to schedule the multicast service

[1777] DCI for update information of the control channel of the multicast service

[1778] DCI for scheduling information of the update information of the control channel of the multicast service

[1779] Optionally, the multicast information sending module includes:

[1780] An association unit, configured to associate the monitoring opportunity of the PDCCH of the multicast message with the corresponding search space or search space set of the multicast message

[1781] Configure the search space of the multicast message through at least one of the following methods:

[1782] Information of the common search space set of the Nth type of PDCCH for the search space configuration of the multicast message in the PDCCH common configuration configured by the radio resource control (RRC) message; wherein, this common search space is for the DCI format scrambled by the cyclic redundancy check code (CRC) with the multicast-RNTI on the primary cell

[1783] The search space identified as the common type in the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the CRC with the multicast-RNTI on the primary cell

[1784] Wherein, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space identified as the common type, includes at least one of the following information:

[1785] Search space label

[1786] The first indication information, used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring opportunity for the multicast message

[1787] The second indication information, used to indicate the monitoring period and time offset in a PDCCH monitoring opportunity for the multicast message

[1788] The third indication information, used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring opportunity for the multicast message

[1789] The fourth indication information indicates, in the form of a bitmap, a monitoring time slot and / or a monitoring time symbol of a PDCCH monitoring occasion for a multicast message;

[1790] The fifth indication information indicates, in the form of a bitmap, a monitoring time symbol in a time slot of a PDCCH monitoring occasion for a multicast message;

[1791] The sixth indication information is used to indicate a start symbol and / or a duration of a time slot of a PDCCH monitoring occasion for a multicast message;

[1792] The seventh indication information is used to indicate an index of a control resource set associated with this search space.

[1793] Optionally, the PDCCH monitoring occasions of one or more multicast messages form a multicast message occasion.

[1794] Optionally, it further includes:

[1795] The multicast scheduling radio frame determination module is used to determine a multicast scheduling radio frame, where MF is a system frame that includes a starting point of one or more MOs or MOs.

[1796] Optionally, it further includes:

[1797] The beam selection module is used to select one or more beams for transmitting multicast scheduling information.

[1798] Optionally, a multicast message occasion is the PDCCH monitoring occasions of Y multicast messages, where Y is determined according to the number of actually transmitted SSBs in the cell.

[1799] Optionally, a multicast message occasion is a set of PDCCH monitoring occasions of a group of multicast messages,

[1800] The Z-th PDCCH monitoring occasion in the multicast message occasion corresponds to the Z-th transmitted SSB, where Z is a positive integer.

[1801] Please refer to Figure 19 , Figure 19 is a schematic structural diagram of a network-side device provided by an embodiment of the present invention. The network-side device 190 includes:

[1802] The control information sending module 191 is used to send n pieces of control information of multicast services and / or broadcast services to the terminal at intervals of t time domain units within a repetition period of the control information of multicast services and / or broadcast services, where n and t are positive integers.

[1803] Optionally, the network-side device further includes:

[1804] A first information sending module, configured to send first information to a terminal, where the first information is used to indicate a first sending time, and the first sending time is a sending time of control information of the n multicast services and / or broadcast services within a corresponding time domain unit.

[1805] Optionally, the first information includes at least one of the following information:

[1806] Information used to indicate a start moment of the first sending time;

[1807] Information used to indicate a duration of the first sending time;

[1808] Information used to indicate a first offset, where the first offset is an offset between the first sending time and a position of an RMSI of an SSB.

[1809] Please refer to Figure 20 , Figure 20 which is a schematic structural diagram of a terminal provided in an embodiment of the present invention. The terminal 200 includes:

[1810] A control information receiving module 201, configured to receive control information of n multicast services and / or broadcast services sent by a network-side device every t time domain units within a repetition period of the control information of the multicast services and / or broadcast services, where n and t are positive integers.

[1811] Optionally, the control information receiving module is configured to obtain a time domain unit corresponding to the control information of the multicast services and / or broadcast services within the repetition period; and monitor the corresponding control information of the multicast services and / or broadcast services in the time domain unit.

[1812] Optionally, the time domain unit is calculated according to the following formula:

[1813] SFN mod sc-mcch-RepetitionPeriod = sc-mcch-Offset +

[1814] (sc-mcch-RepetitionPeriod) divided by

[1815] The SFN is the serial number of the time domain unit corresponding to the control information of the first multicast service and / or broadcast service. The sc-mcch-RepetitionPeriod is the size of the repetition period. The sc-mcch-Offset is the offset of the starting time domain unit of the first repetition period. M is the total number of control information of the multicast service and / or broadcast service sent within the repetition period. The multicast_ID is the serial number of the multicast service and / or broadcast service, and the multicast_ID is determined according to the sending order of the control information of the multicast service and / or broadcast service within the repetition period.

[1816] Optionally, the control information receiving module is configured to receive the first information sent by the network side device, where the first information is used to indicate a second sending time, and the second sending time is the sending time of the control information of the n multicast services and / or broadcast services within the corresponding time domain unit.

[1817] Receive the control information of the n multicast services and / or broadcast services at the second sending time.

[1818] Optionally, the first information includes at least one of the following information:

[1819] Information used to indicate the starting moment of the second sending time;

[1820] Information used to indicate the duration of the second sending time;

[1821] Information used to indicate a first offset, where the first offset is the offset between the second sending time and the position of the RMSI of the SSB.

[1822] Please refer to Figure 21 , Figure 21 which is a schematic structural diagram of a network side device provided by an embodiment of the present invention. The network side device 210 includes:

[1823] A configuration information sending module 211, configured to send configuration information to the terminal.

[1824] Send configuration information to the terminal, where the configuration information is used to indicate first symbol information and / or second symbol information in a time slot. The first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information.

[1825] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[1826] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[1827] Optionally, the configuration information is further used to indicate that every y symbols in the time slot insert a column of reference signals; and / or, the configuration information is further used to indicate that one reference signal is inserted for every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[1828] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or is an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[1829] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or is a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[1830] Optionally, information about the reference signal needs to be interacted between different network nodes;

[1831] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[1832] The unicast information includes at least one of a reference signal corresponding to unicast, control signaling, and data;

[1833] The multicast information includes at least one of a reference signal corresponding to multicast, control signaling, and data;

[1834] The broadcast information includes at least one of a reference signal corresponding to broadcast, control signaling, and data;

[1835] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[1836] The present invention further provides a terminal, including:

[1837] A configuration information receiving module, configured to receive configuration information sent by a network-side device,

[1838] Send configuration information to the terminal, where the configuration information is used to indicate first symbol information and / or second symbol information in a time slot, the first symbol is a symbol for sending unicast information, and the second symbol is a symbol for sending multicast information and / or broadcast information;

[1839] The first symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the first symbol;

[1840] The second symbol information is used to indicate the number of time symbols and / or the number of PRBs occupied by the second symbol.

[1841] Optionally, the configuration information is further used to indicate that a column of reference signals is inserted every y symbols in the time slot; and / or, the configuration information is further used to indicate that one reference signal is inserted every x subcarriers in the frequency domain corresponding to the time slot, where the reference signal is a reference signal for multicast and / or broadcast;

[1842] Optionally, the reference signal may be an SSB of a cell or a set of SSBs, or an SSB or a set of SSBs shared by a multicast and / or broadcast area; and / or:

[1843] Optionally, the reference signal may be a unified CSI-RS or a set of CSI-RSs for terminals within a multicast and / or broadcast group, or a CSI-RS or a set of CSI-RSs shared by a multicast and / or broadcast area;

[1844] Optionally, information about the reference signal needs to be exchanged between different network nodes;

[1845] Wherein, x and y are positive integers, x is determined according to the subcarrier spacing, and y is determined according to the subcarrier spacing;

[1846] The unicast information includes at least one of a reference signal corresponding to unicast, control signaling, and data;

[1847] The multicast information includes at least one of a reference signal corresponding to multicast, control signaling, and data;

[1848] The broadcast information includes at least one of a reference signal corresponding to broadcast, control signaling, and data;

[1849] Optionally, x and y are positive integers, x is determined according to the subcarrier spacing, and y is further determined according to the measurement accuracy.

[1850] Please refer to Figure 22 , Figure 22 which is a schematic structural diagram of a terminal provided by an embodiment of the present invention. The terminal 220 includes:

[1851] A resource configuration information receiving module 221, configured to receive resource configuration information sent by a network-side device, where the resource configuration information is resource configuration information for multicast services and / or broadcast services of an adjacent cell;

[1852] A measurement module, configured to measure or not measure the resources corresponding to the resource configuration information.

[1853] Optionally, the measurement module is configured to not measure the resources corresponding to the resource configuration information if the terminal only has unicast services;

[1854] If the terminal only has multicast services and / or broadcast services, measure the resources corresponding to the resource configuration information;

[1855] If the terminal has both unicast services and multicast services and / or broadcast services, measure the resources corresponding to the resource configuration information.

[1856] Please refer to Figure 23 , Figure 23 FIG. is a schematic structural diagram of a network-side device provided by an embodiment of the present invention. The network-side device 230 includes: a transceiver 231 and a processor 232;

[1857] The transceiver is configured to send a first DCI scrambled with a first RNTI to the terminal, where the first DCI is used to indicate whether the control information of a multicast service and / or a broadcast service is updated or updated-related information; or:

[1858] The transceiver is configured to send a second DCI scrambled with a second RNTI to the terminal, where the second DCI is used to indicate whether the control information of a set of multicast services and / or broadcast services is updated or updated-related information;

[1859] Wherein, the control information includes configuration information of multicast services and / or broadcast services.

[1860] Optionally, the configuration information of the one multicast service and / or broadcast service includes at least one of the following items:

[1861] A list of TMGIs;

[1862] The Session ID corresponding to the TMGI in the list of TMGIs;

[1863] The G-RNTI corresponding to the TMGI in the list of TMGIs;

[1864] The BWP corresponding to the TMGI in the list of TMGIs;

[1865] The subcarrier spacing corresponding to the TMGI in the list of TMGIs;

[1866] The logical channel and / or logical channel group corresponding to the TMGI in the list of TMGIs;

[1867] The DRX configuration corresponding to the TMGI in the list of TMGIs;

[1868] The uplink resource configuration of HARQ feedback corresponding to the TMGI in the list of TMGIs;

[1869] The uplink resource configuration of CSI reporting corresponding to the TMGI in the list of TMGIs.

[1870] Optionally, the first DCI is used to indicate at least one of the following items:

[1871] The control information of the multicast service and / or the broadcast service has changed;

[1872] Whether the control information of the multicast service and / or the broadcast service has changed;

[1873] The changed control information of the multicast service and / or the broadcast service;

[1874] The type of the changed control information of the multicast service and / or the broadcast service;

[1875] Read the resource information of the changed control information of the multicast service and / or the broadcast service.

[1876] Optionally, when the first DCI is used to indicate that the control information of the multicast service and / or the broadcast service has changed, the first DCI is further used to indicate at least one of the following items:

[1877] The configuration information of the multicast service and / or the broadcast service has changed;

[1878] The transmission mode of the multicast service and / or the broadcast service changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[1879] The transmission mode of the multicast service and / or the broadcast service changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[1880] The transmission mode of the multicast service and / or the broadcast service changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[1881] The transmission mode of the multicast service and / or the broadcast service changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[1882] The multicast or broadcast service for which the control information of the multicast service and / or the broadcast service has changed;

[1883] A group to which a new multicast service and / or broadcast service is added;

[1884] A group of existing multicast services and / or broadcast services that has been deleted;

[1885] A group of existing multicast services and / or broadcast services that has been updated;

[1886] Close or enable the HARQ feedback of the multicast service and / or the broadcast service;

[1887] Enable or disable CSI feedback for the multicast service and / or broadcast service.

[1888] Optionally, the first DCI is used to indicate at least one of the following:

[1889] The configuration information of the multicast service and / or broadcast service has changed;

[1890] The transmission mode of the multicast service and / or broadcast service changes from single-cell single-point-to-multipoint transmission mode to multi-cell single-point-to-multipoint transmission mode;

[1891] The transmission mode of the multicast service and / or broadcast service changes from multi-cell single-point-to-multipoint transmission mode to single-cell single-point-to-multipoint transmission mode;

[1892] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-multipoint transmission mode to single-point-to-single-point transmission mode;

[1893] The transmission mode of the multicast service and / or broadcast service changes from single-point-to-single-point transmission mode to single-point-to-multipoint transmission mode;

[1894] The multicast or broadcast service whose control information of the multicast service and / or broadcast service has changed;

[1895] A group with a new multicast service and / or broadcast service added;

[1896] A group of existing multicast services and / or broadcast services deleted;

[1897] A group of existing multicast services and / or broadcast services updated;

[1898] Disable or enable HARQ feedback for the multicast service and / or broadcast service;

[1899] Enable or disable CSI feedback for the multicast service and / or broadcast service.

[1900] Optionally, the set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a cell; and / or,

[1901] The set of one or more multicast services and / or broadcast services is a set of some or all of the multicast services and / or broadcast services within a multicast area and / or broadcast area.

[1902] Optionally, the second DCI is used to indicate at least one of the following:

[1903] The control information of the set of one or more multicast services and / or broadcast services has changed;

[1904] Whether the control information of the multicast service and / or broadcast service set has changed;

[1905] The control information of the changed multicast service and / or broadcast service set;

[1906] The type of the control information of the changed multicast service and / or broadcast service set;

[1907] Read the resource information of the control information of the changed multicast service and / or broadcast service set.

[1908] Optionally, when the second DCI is used to indicate that the control information of the multicast service and / or broadcast service set has changed, the second DCI is further used to indicate at least one of the following items:

[1909] The configuration information of the multicast service and / or broadcast service set has changed;

[1910] The transmission mode of the multicast service and / or broadcast service set changes from the single-cell single-point-to-multipoint transmission mode to the multi-cell single-point-to-multipoint transmission mode;

[1911] The transmission mode of the multicast service and / or broadcast service set changes from the multi-cell single-point-to-multipoint transmission mode to the single-cell single-point-to-multipoint transmission mode;

[1912] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-multipoint transmission mode to the single-point-to-single-point transmission mode;

[1913] The transmission mode of the multicast service and / or broadcast service set changes from the single-point-to-single-point transmission mode to the single-point-to-multipoint transmission mode;

[1914] The multicast or broadcast service for which the control information of the multicast service an...

Claims

1. An information receiving method, applied to a terminal, characterized in that, Including: Determine the monitoring occasion of the Physical Downlink Control Channel (PDCCH) for one or more multicast messages, and receive multicast information at the monitoring occasion of the PDCCH for the multicast message; Among them, the monitoring occasion of the PDCCH for one multicast message includes at least one time slot; Among them, each time slot included in the monitoring occasion of the PDCCH for one multicast message includes at least one time symbol; Among them, the multicast information includes at least one of the following: DCI for the network to schedule multicast services; DCI for the configuration information of the network to schedule multicast services; DCI for the information of the control channel of the multicast service; DCI for the information of the control channel of the network to schedule multicast services; DCI for the scheduling information of the information of the control channel of the multicast service; DCI for the update information of the control channel of the network to schedule multicast services; DCI for the update information of the control channel of the multicast service; DCI for the scheduling information of the update information of the control channel of the multicast service; The determining the monitoring occasion of the Physical Downlink Control Channel (PDCCH) for one or more multicast messages includes: Determine the monitoring occasion of the PDCCH for the multicast message according to the search space for the multicast message or the set of search spaces for the multicast message.

2. The method according to claim 1, wherein: Determine the search space for the multicast message by at least one of the following methods: The terminal UE reads the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message from the PDCCH common configuration configured by the network through the Radio Resource Control (RRC) message; wherein, this common search space is for the DCI format scrambled by the multicast-RNTI on the primary cell; The UE reads the search space identified as the common type from the PDCCH dedicated configuration configured by the RRC message, and it is for the DCI format scrambled by the multicast-RNTI on the primary cell; If the UE does not find the information of the common search space set of the Nth type of PDCCH configured for the search space of the multicast message in the RRC message, the association relationship between the monitoring occasion of the PDCCH for the common search space set of the Nth type of PDCCH and the SSB block index is the same as the association relationship of the monitoring occasion of the PDCCH for the common search space of type 0; Find out the CCE aggregation level in the common search space set of the Nth type of PDCCH and the number of PDCCH candidates for each CCE aggregation level by looking up a table; Among them, the information of the common search space set of the Nth type of PDCCH, and / or the information of the search space identified as the common type, includes at least one of the following information: Search space label; The first indication information, used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for a multicast message; The second indication information, used to indicate the monitoring period and time offset in a PDCCH monitoring occasion for a multicast message; The third indication information is used to indicate the starting symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for a multicast message; The fourth indication information indicates, in the form of a bitmap, the monitoring time slot and / or monitoring time symbol of a PDCCH monitoring occasion for a multicast message; The fifth indication information indicates, in the form of a bitmap, the monitoring time symbol in a time slot of a PDCCH monitoring occasion for a multicast message; The sixth indication information is used to indicate the starting symbol and / or duration of a time slot in a PDCCH monitoring occasion for a multicast message; The seventh indication information is used to indicate the index of the control resource set associated with this search space.

3. The method according to claim 1, characterized in that, The monitoring occasions of the PDCCHs of one or more multicast messages constitute a multicast message occasion.

4. The method according to claim 1, wherein It further includes: Determine a multicast scheduling radio frame MF, where MF is a system frame that includes one or more multicast message occasions MO or the starting points of MO.

5. The method according to claim 1, characterized in that, It includes: Select one or more beams for receiving multicast scheduling information.

6. The method according to claim 1, wherein, A multicast message occasion is the monitoring occasions of the PDCCHs of Y multicast messages, where Y is determined according to the actual number of SSBs sent in the cell.

7. The method according to claim 1, wherein an occasion of a multicast message is a monitoring occasion of PDCCHs of a set of multicast messages, characterized in that It includes: For the Zth PDCCH monitoring occasion in the multicast message occasion corresponding to the Zth sent SSB, Z is a positive integer.

8. A method for sending information, applied to a network-side device, characterized in that It includes: Transmit multicast information on the monitoring occasions of the physical downlink control channels PDCCHs of one or more multicast messages; Wherein, the monitoring occasion of the PDCCH of a multicast message includes at least one time slot; Wherein, each time slot included in the monitoring occasion of the PDCCH of a multicast message includes at least one time symbol; Wherein, the multicast information includes at least one of the following: DCI for the network to schedule multicast services; DCI for the configuration information of the network to schedule multicast services; DCI for the information of the control channel of the multicast service; DCI for the information of the control channel of the network to schedule multicast services; DCI for the scheduling information of the information of the control channel of the multicast service; DCI for the update information of the control channel of the network to schedule multicast services; DCI for the update information of the control channel of the multicast service; DCI for the scheduling information of the update information of the control channel of the multicast service; Wherein, the monitoring occasion of the PDCCH of the multicast message is determined according to the search space of the multicast message or the set of search spaces of the multicast message.

9. The method according to claim 8, wherein The transmitting of the multicast information on the monitoring occasions of the physical downlink control channels PDCCHs of one or more multicast messages includes: Associate the monitoring occasion of the PDCCH of the multicast message with the corresponding search space of the multicast message or the set of search spaces of the multicast message; Configure the search space of the multicast message by at least one of the following methods: Information on the common search space set of the Nth type of PDCCH for the search space configuration for multicast messages in the PDCCH common configuration configured by radio resource control (RRC) messages; wherein, such a common search space is for the downlink control information (DCI) format scrambled by the multicast radio network temporary identifier (m-RNTI) on the primary cell; The search space identified as the common type in the PDCCH dedicated configuration configured by RRC messages, and is for the DCI format scrambled by the m-RNTI on the primary cell; Wherein, the information on the common search space set of the Nth type of PDCCH, and / or the information on the search space identified as the common type, includes at least one of the following information: Search space label; The first indication information, used to indicate the first time symbol in the control resource set in a slot of a PDCCH monitoring occasion for multicast messages; The second indication information, used to indicate the monitoring period and time offset in a PDCCH monitoring occasion for multicast messages; The third indication information, used to indicate the start symbol and / or duration in a monitoring period of a PDCCH monitoring occasion for multicast messages; The fourth indication information, indicating the monitoring time slots and / or monitoring time symbols of a PDCCH monitoring occasion for multicast messages in the form of a bitmap; The fifth indication information, indicating the monitoring time symbols in a slot of a PDCCH monitoring occasion for multicast messages in the form of a bitmap; The sixth indication information, used to indicate the start symbol and / or duration of a slot in a PDCCH monitoring occasion for multicast messages; The seventh indication information, used to indicate the index of the control resource set associated with this search space.

10. The method according to claim 8, wherein The monitoring occasions of the PDCCHs of one or more multicast messages form a multicast message occasion.

11. The method according to claim 8, wherein It further includes: Determining the multicast scheduling radio frame (MF), where MF is a system frame that contains one or more multicast message occasions (MO) or the starting point of MO.

12. The method according to claim 8, wherein Including: Selecting one or more beams for transmitting multicast scheduling information.

13. The method according to claim 8, wherein, A multicast message occasion is the monitoring occasions of the PDCCHs of Y multicast messages, where Y is determined according to the actual number of synchronized signal blocks (SSBs) transmitted in the cell.

14. The method according to claim 8, wherein the occasion of a multicast message is the monitoring occasion of the PDCCH of a set of multicast messages, characterized in that Including: For the Zth PDCCH monitoring occasion in the multicast message occasion corresponding to the Zth transmitted SSB, where Z is a positive integer.

15. A terminal, characterized in that, The terminal includes: A reception occasion determination module, used to determine the monitoring occasions of the physical downlink control channel (PDCCH) of one or more multicast messages; An information reception module, used to receive multicast information on the monitoring occasions of the PDCCH of multicast messages; Wherein, a multicast message occasion is a set of monitoring occasions of the PDCCHs of a group of multicast messages; Wherein, the monitoring occasion of the PDCCH of a multicast message includes at least one time slot; Wherein, each time slot included in the monitoring occasion of the PDCCH of a multicast message includes at least one time symbol; Wherein, the multicast information includes at least one of the following: DCI for network-scheduled multicast service; DCI for configuration information of network-scheduled multicast service; DCI for information of control channel of multicast service; DCI for information of control channel of network-scheduled multicast service; DCI for scheduling information of information of control channel of multicast service; DCI for update information of control channel of network-scheduled multicast service; DCI for update information of control channel of multicast service; DCI for scheduling information of update information of control channel of multicast service; The receiving timing determination module is further configured to: Determine the listening timing of the PDCCH of the multicast message according to the search space of the multicast message or the set of search spaces of the multicast message.

16. A network-side device, characterized in that, The network-side device includes: A multicast information sending module, configured to send multicast information at the listening timing of the physical downlink control channel PDCCH of one or more multicast messages; Wherein, the listening timing of the PDCCH of one multicast message includes at least one time slot; Wherein, each time slot included in the listening timing of the PDCCH of one multicast message includes at least one time symbol; Wherein, the multicast information includes at least one of the following: DCI for network-scheduled multicast service; DCI for configuration information of network-scheduled multicast service; DCI for information of control channel of multicast service; DCI for information of control channel of network-scheduled multicast service; DCI for scheduling information of information of control channel of multicast service; DCI for update information of control channel of network-scheduled multicast service; DCI for update information of control channel of multicast service; DCI for scheduling information of update information of control channel of multicast service; Wherein, the listening timing of the PDCCH of the multicast message is determined according to the search space of the multicast message or the set of search spaces of the multicast message.

17. A terminal, characterized in that, Includes: A transceiver and a processor; The processor is configured to determine the listening timing of the physical downlink control channel PDCCH of one or more multicast messages; The transceiver is configured to receive multicast information at the listening timing of the physical downlink control channel PDCCH of the multicast message; Wherein, the timing of one multicast message is the listening timing of the PDCCH of a group of multicast messages; Wherein, the listening timing of the PDCCH of one multicast message includes at least one time slot; Wherein, each time slot included in the listening timing of the PDCCH of one multicast message includes at least one time symbol; Wherein, the multicast information includes at least one of the following: DCI for network-scheduled multicast service; DCI for configuration information of network-scheduled multicast service; DCI for information of control channel of multicast service; DCI for information of control channel of network-scheduled multicast service; DCI for scheduling information of information of control channel of multicast service; DCI for update information of control channel of network-scheduled multicast service; DCI for update information of control channel of multicast service; DCI for scheduling information of update information of control channel of multicast service; The processor is further configured to: Determine the listening timing of the PDCCH of the multicast message according to the search space of the multicast message or the set of search spaces of the multicast message.

18. A network-side device, characterized in that Includes: A transceiver and a processor; The transceiver is used to send multicast information during the monitoring opportunity of the physical downlink control channel (PDCCH) of one or more multicast messages; Among them, the monitoring opportunity of the PDCCH of a multicast message includes at least one time slot; Among them, each time slot included in the monitoring opportunity of the PDCCH of a multicast message includes at least one time symbol; Among them, the multicast information includes at least one of the following: DCI for the network to schedule multicast services; DCI for the network to schedule the configuration information of multicast services; DCI for the information of the control channel of multicast services; DCI for the information of the control channel of the network to schedule multicast services; DCI for the scheduling information of the information of the control channel of multicast services; DCI for the update information of the control channel of the network to schedule multicast services; DCI for the update information of the control channel of multicast services; DCI for the scheduling information of the update information of the control channel of multicast services; Among them, the monitoring opportunity of the PDCCH of the multicast message is determined according to the search space of the multicast message or the set of search spaces of the multicast message.

19. A network-side device, comprising a memory, a processor, and a program stored on the memory and executable on the processor; characterized in that, When the processor executes the program, it implements the steps in the information sending method described in any one of claims 8 to 14.

20. A terminal, comprising a memory, a processor, and a program stored on the memory and executable on the processor; characterized in that, When the processor executes the program, it implements the steps in the information receiving method described in any one of claims 1 to 7.

21. A readable storage medium, on which a program is stored, characterized in that, When the program is executed by the processor, it implements the steps in the method described in any one of claims 1 to 14.

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